xref: /vim-8.2.3635/src/term.c (revision 4c86830f)
1 /* vi:set ts=8 sts=4 sw=4 noet:
2  *
3  * VIM - Vi IMproved	by Bram Moolenaar
4  *
5  * Do ":help uganda"  in Vim to read copying and usage conditions.
6  * Do ":help credits" in Vim to see a list of people who contributed.
7  * See README.txt for an overview of the Vim source code.
8  */
9 /*
10  *
11  * term.c: functions for controlling the terminal
12  *
13  * primitive termcap support for Amiga and Win32 included
14  *
15  * NOTE: padding and variable substitution is not performed,
16  * when compiling without HAVE_TGETENT, we use tputs() and tgoto() dummies.
17  */
18 
19 /*
20  * Some systems have a prototype for tgetstr() with (char *) instead of
21  * (char **). This define removes that prototype. We include our own prototype
22  * below.
23  */
24 #define tgetstr tgetstr_defined_wrong
25 
26 #include "vim.h"
27 
28 #ifdef HAVE_TGETENT
29 # ifdef HAVE_TERMIOS_H
30 #  include <termios.h>	    // seems to be required for some Linux
31 # endif
32 # ifdef HAVE_TERMCAP_H
33 #  include <termcap.h>
34 # endif
35 
36 /*
37  * A few linux systems define outfuntype in termcap.h to be used as the third
38  * argument for tputs().
39  */
40 # ifdef VMS
41 #  define TPUTSFUNCAST (void (*)(unsigned int))
42 # else
43 #  ifdef HAVE_OUTFUNTYPE
44 #   define TPUTSFUNCAST (outfuntype)
45 #  else
46 #   define TPUTSFUNCAST (int (*)(int))
47 #  endif
48 # endif
49 #endif
50 
51 #undef tgetstr
52 
53 /*
54  * Here are the builtin termcap entries.  They are not stored as complete
55  * structures with all entries, as such a structure is too big.
56  *
57  * The entries are compact, therefore they normally are included even when
58  * HAVE_TGETENT is defined. When HAVE_TGETENT is defined, the builtin entries
59  * can be accessed with "builtin_amiga", "builtin_ansi", "builtin_debug", etc.
60  *
61  * Each termcap is a list of builtin_term structures. It always starts with
62  * KS_NAME, which separates the entries.  See parse_builtin_tcap() for all
63  * details.
64  * bt_entry is either a KS_xxx code (>= 0), or a K_xxx code.
65  *
66  * Entries marked with "guessed" may be wrong.
67  */
68 struct builtin_term
69 {
70     int		bt_entry;
71     char	*bt_string;
72 };
73 
74 // start of keys that are not directly used by Vim but can be mapped
75 #define BT_EXTRA_KEYS	0x101
76 
77 static void parse_builtin_tcap(char_u *s);
78 static void gather_termleader(void);
79 #ifdef FEAT_TERMRESPONSE
80 static void req_codes_from_term(void);
81 static void req_more_codes_from_term(void);
82 static void got_code_from_term(char_u *code, int len);
83 static void check_for_codes_from_term(void);
84 #endif
85 static void del_termcode_idx(int idx);
86 static int find_term_bykeys(char_u *src);
87 static int term_is_builtin(char_u *name);
88 static int term_7to8bit(char_u *p);
89 
90 #ifdef HAVE_TGETENT
91 static char *tgetent_error(char_u *, char_u *);
92 
93 /*
94  * Here is our own prototype for tgetstr(), any prototypes from the include
95  * files have been disabled by the define at the start of this file.
96  */
97 char		*tgetstr(char *, char **);
98 
99 # ifdef FEAT_TERMRESPONSE
100     // Change this to "if 1" to debug what happens with termresponse.
101 #  if 0
102 #   define DEBUG_TERMRESPONSE
103 static void log_tr(const char *fmt, ...);
104 #   define LOG_TR(msg) log_tr msg
105 #  else
106 #   define LOG_TR(msg) do { /**/ } while (0)
107 #  endif
108 
109 typedef enum {
110     STATUS_GET,		// send request when switching to RAW mode
111     STATUS_SENT,	// did send request, checking for response
112     STATUS_GOT,		// received response
113     STATUS_FAIL		// timed out
114 } request_progress_T;
115 
116 typedef struct {
117     request_progress_T	    tr_progress;
118     time_t		    tr_start;	// when request was sent, -1 for never
119 } termrequest_T;
120 
121 #  define TERMREQUEST_INIT {STATUS_GET, -1}
122 
123 // Request Terminal Version status:
124 static termrequest_T crv_status = TERMREQUEST_INIT;
125 
126 // Request Cursor position report:
127 static termrequest_T u7_status = TERMREQUEST_INIT;
128 
129 // Request xterm compatibility check:
130 static termrequest_T xcc_status = TERMREQUEST_INIT;
131 
132 #  ifdef FEAT_TERMINAL
133 // Request foreground color report:
134 static termrequest_T rfg_status = TERMREQUEST_INIT;
135 static int fg_r = 0;
136 static int fg_g = 0;
137 static int fg_b = 0;
138 static int bg_r = 255;
139 static int bg_g = 255;
140 static int bg_b = 255;
141 #  endif
142 
143 // Request background color report:
144 static termrequest_T rbg_status = TERMREQUEST_INIT;
145 
146 // Request cursor blinking mode report:
147 static termrequest_T rbm_status = TERMREQUEST_INIT;
148 
149 // Request cursor style report:
150 static termrequest_T rcs_status = TERMREQUEST_INIT;
151 
152 // Request window's position report:
153 static termrequest_T winpos_status = TERMREQUEST_INIT;
154 
155 static termrequest_T *all_termrequests[] = {
156     &crv_status,
157     &u7_status,
158     &xcc_status,
159 #  ifdef FEAT_TERMINAL
160     &rfg_status,
161 #  endif
162     &rbg_status,
163     &rbm_status,
164     &rcs_status,
165     &winpos_status,
166     NULL
167 };
168 # endif
169 
170 /*
171  * Don't declare these variables if termcap.h contains them.
172  * Autoconf checks if these variables should be declared extern (not all
173  * systems have them).
174  * Some versions define ospeed to be speed_t, but that is incompatible with
175  * BSD, where ospeed is short and speed_t is long.
176  */
177 # ifndef HAVE_OSPEED
178 #  ifdef OSPEED_EXTERN
179 extern short ospeed;
180 #   else
181 short ospeed;
182 #   endif
183 # endif
184 # ifndef HAVE_UP_BC_PC
185 #  ifdef UP_BC_PC_EXTERN
186 extern char *UP, *BC, PC;
187 #  else
188 char *UP, *BC, PC;
189 #  endif
190 # endif
191 
192 # define TGETSTR(s, p)	vim_tgetstr((s), (p))
193 # define TGETENT(b, t)	tgetent((char *)(b), (char *)(t))
194 static char_u *vim_tgetstr(char *s, char_u **pp);
195 #endif // HAVE_TGETENT
196 
197 static int  detected_8bit = FALSE;	// detected 8-bit terminal
198 
199 #if (defined(UNIX) || defined(VMS))
200 static int focus_mode = FALSE; // xterm's "focus reporting" availability
201 static int focus_state = FALSE; // TRUE if the terminal window gains focus
202 #endif
203 
204 #ifdef FEAT_TERMRESPONSE
205 // When the cursor shape was detected these values are used:
206 // 1: block, 2: underline, 3: vertical bar
207 static int initial_cursor_shape = 0;
208 
209 // The blink flag from the style response may be inverted from the actual
210 // blinking state, xterm XORs the flags.
211 static int initial_cursor_shape_blink = FALSE;
212 
213 // The blink flag from the blinking-cursor mode response
214 static int initial_cursor_blink = FALSE;
215 #endif
216 
217 static struct builtin_term builtin_termcaps[] =
218 {
219 
220 #if defined(FEAT_GUI)
221 /*
222  * GUI pseudo term-cap.
223  */
224     {(int)KS_NAME,	"gui"},
225     {(int)KS_CE,	IF_EB("\033|$", ESC_STR "|$")},
226     {(int)KS_AL,	IF_EB("\033|i", ESC_STR "|i")},
227 # ifdef TERMINFO
228     {(int)KS_CAL,	IF_EB("\033|%p1%dI", ESC_STR "|%p1%dI")},
229 # else
230     {(int)KS_CAL,	IF_EB("\033|%dI", ESC_STR "|%dI")},
231 # endif
232     {(int)KS_DL,	IF_EB("\033|d", ESC_STR "|d")},
233 # ifdef TERMINFO
234     {(int)KS_CDL,	IF_EB("\033|%p1%dD", ESC_STR "|%p1%dD")},
235     {(int)KS_CS,	IF_EB("\033|%p1%d;%p2%dR", ESC_STR "|%p1%d;%p2%dR")},
236     {(int)KS_CSV,	IF_EB("\033|%p1%d;%p2%dV", ESC_STR "|%p1%d;%p2%dV")},
237 # else
238     {(int)KS_CDL,	IF_EB("\033|%dD", ESC_STR "|%dD")},
239     {(int)KS_CS,	IF_EB("\033|%d;%dR", ESC_STR "|%d;%dR")},
240     {(int)KS_CSV,	IF_EB("\033|%d;%dV", ESC_STR "|%d;%dV")},
241 # endif
242     {(int)KS_CL,	IF_EB("\033|C", ESC_STR "|C")},
243 			// attributes switched on with 'h', off with * 'H'
244     {(int)KS_ME,	IF_EB("\033|31H", ESC_STR "|31H")}, // HL_ALL
245     {(int)KS_MR,	IF_EB("\033|1h", ESC_STR "|1h")},   // HL_INVERSE
246     {(int)KS_MD,	IF_EB("\033|2h", ESC_STR "|2h")},   // HL_BOLD
247     {(int)KS_SE,	IF_EB("\033|16H", ESC_STR "|16H")}, // HL_STANDOUT
248     {(int)KS_SO,	IF_EB("\033|16h", ESC_STR "|16h")}, // HL_STANDOUT
249     {(int)KS_UE,	IF_EB("\033|8H", ESC_STR "|8H")},   // HL_UNDERLINE
250     {(int)KS_US,	IF_EB("\033|8h", ESC_STR "|8h")},   // HL_UNDERLINE
251     {(int)KS_UCE,	IF_EB("\033|8C", ESC_STR "|8C")},   // HL_UNDERCURL
252     {(int)KS_UCS,	IF_EB("\033|8c", ESC_STR "|8c")},   // HL_UNDERCURL
253     {(int)KS_STE,	IF_EB("\033|4C", ESC_STR "|4C")},   // HL_STRIKETHROUGH
254     {(int)KS_STS,	IF_EB("\033|4c", ESC_STR "|4c")},   // HL_STRIKETHROUGH
255     {(int)KS_CZR,	IF_EB("\033|4H", ESC_STR "|4H")},   // HL_ITALIC
256     {(int)KS_CZH,	IF_EB("\033|4h", ESC_STR "|4h")},   // HL_ITALIC
257     {(int)KS_VB,	IF_EB("\033|f", ESC_STR "|f")},
258     {(int)KS_MS,	"y"},
259     {(int)KS_UT,	"y"},
260     {(int)KS_XN,	"y"},
261     {(int)KS_LE,	"\b"},		// cursor-left = BS
262     {(int)KS_ND,	"\014"},	// cursor-right = CTRL-L
263 # ifdef TERMINFO
264     {(int)KS_CM,	IF_EB("\033|%p1%d;%p2%dM", ESC_STR "|%p1%d;%p2%dM")},
265 # else
266     {(int)KS_CM,	IF_EB("\033|%d;%dM", ESC_STR "|%d;%dM")},
267 # endif
268 	// there are no key sequences here, the GUI sequences are recognized
269 	// in check_termcode()
270 #endif
271 
272 #ifndef NO_BUILTIN_TCAPS
273 
274 # if defined(AMIGA) || defined(ALL_BUILTIN_TCAPS)
275 /*
276  * Amiga console window, default for Amiga
277  */
278     {(int)KS_NAME,	"amiga"},
279     {(int)KS_CE,	"\033[K"},
280     {(int)KS_CD,	"\033[J"},
281     {(int)KS_AL,	"\033[L"},
282 #  ifdef TERMINFO
283     {(int)KS_CAL,	"\033[%p1%dL"},
284 #  else
285     {(int)KS_CAL,	"\033[%dL"},
286 #  endif
287     {(int)KS_DL,	"\033[M"},
288 #  ifdef TERMINFO
289     {(int)KS_CDL,	"\033[%p1%dM"},
290 #  else
291     {(int)KS_CDL,	"\033[%dM"},
292 #  endif
293     {(int)KS_CL,	"\014"},
294     {(int)KS_VI,	"\033[0 p"},
295     {(int)KS_VE,	"\033[1 p"},
296     {(int)KS_ME,	"\033[0m"},
297     {(int)KS_MR,	"\033[7m"},
298     {(int)KS_MD,	"\033[1m"},
299     {(int)KS_SE,	"\033[0m"},
300     {(int)KS_SO,	"\033[33m"},
301     {(int)KS_US,	"\033[4m"},
302     {(int)KS_UE,	"\033[0m"},
303     {(int)KS_CZH,	"\033[3m"},
304     {(int)KS_CZR,	"\033[0m"},
305 #if defined(__amigaos4__) || defined(__MORPHOS__) || defined(__AROS__)
306     {(int)KS_CCO,	"8"},		// allow 8 colors
307 #  ifdef TERMINFO
308     {(int)KS_CAB,	"\033[4%p1%dm"},// set background color
309     {(int)KS_CAF,	"\033[3%p1%dm"},// set foreground color
310 #  else
311     {(int)KS_CAB,	"\033[4%dm"},	// set background color
312     {(int)KS_CAF,	"\033[3%dm"},	// set foreground color
313 #  endif
314     {(int)KS_OP,	"\033[m"},	// reset colors
315 #endif
316     {(int)KS_MS,	"y"},
317     {(int)KS_UT,	"y"},		// guessed
318     {(int)KS_LE,	"\b"},
319 #  ifdef TERMINFO
320     {(int)KS_CM,	"\033[%i%p1%d;%p2%dH"},
321 #  else
322     {(int)KS_CM,	"\033[%i%d;%dH"},
323 #  endif
324 #if defined(__MORPHOS__)
325     {(int)KS_SR,	"\033M"},
326 #endif
327 #  ifdef TERMINFO
328     {(int)KS_CRI,	"\033[%p1%dC"},
329 #  else
330     {(int)KS_CRI,	"\033[%dC"},
331 #  endif
332     {K_UP,		"\233A"},
333     {K_DOWN,		"\233B"},
334     {K_LEFT,		"\233D"},
335     {K_RIGHT,		"\233C"},
336     {K_S_UP,		"\233T"},
337     {K_S_DOWN,		"\233S"},
338     {K_S_LEFT,		"\233 A"},
339     {K_S_RIGHT,		"\233 @"},
340     {K_S_TAB,		"\233Z"},
341     {K_F1,		"\233\060~"},// some compilers don't dig "\2330"
342     {K_F2,		"\233\061~"},
343     {K_F3,		"\233\062~"},
344     {K_F4,		"\233\063~"},
345     {K_F5,		"\233\064~"},
346     {K_F6,		"\233\065~"},
347     {K_F7,		"\233\066~"},
348     {K_F8,		"\233\067~"},
349     {K_F9,		"\233\070~"},
350     {K_F10,		"\233\071~"},
351     {K_S_F1,		"\233\061\060~"},
352     {K_S_F2,		"\233\061\061~"},
353     {K_S_F3,		"\233\061\062~"},
354     {K_S_F4,		"\233\061\063~"},
355     {K_S_F5,		"\233\061\064~"},
356     {K_S_F6,		"\233\061\065~"},
357     {K_S_F7,		"\233\061\066~"},
358     {K_S_F8,		"\233\061\067~"},
359     {K_S_F9,		"\233\061\070~"},
360     {K_S_F10,		"\233\061\071~"},
361     {K_HELP,		"\233?~"},
362     {K_INS,		"\233\064\060~"},	// 101 key keyboard
363     {K_PAGEUP,		"\233\064\061~"},	// 101 key keyboard
364     {K_PAGEDOWN,	"\233\064\062~"},	// 101 key keyboard
365     {K_HOME,		"\233\064\064~"},	// 101 key keyboard
366     {K_END,		"\233\064\065~"},	// 101 key keyboard
367 
368     {BT_EXTRA_KEYS,	""},
369     {TERMCAP2KEY('#', '2'), "\233\065\064~"},	// shifted home key
370     {TERMCAP2KEY('#', '3'), "\233\065\060~"},	// shifted insert key
371     {TERMCAP2KEY('*', '7'), "\233\065\065~"},	// shifted end key
372 # endif
373 
374 # ifdef ALL_BUILTIN_TCAPS
375 /*
376  * almost standard ANSI terminal
377  */
378     {(int)KS_CE,	"\033[K"},
379     {(int)KS_CD,	"\033[J"},
380     {(int)KS_AL,	"\033[L"},
381 #  ifdef TERMINFO
382     {(int)KS_CAL,	"\033[%p1%dL"},
383 #  else
384     {(int)KS_CAL,	"\033[%dL"},
385 #  endif
386     {(int)KS_DL,	"\033[M"},
387 #  ifdef TERMINFO
388     {(int)KS_CDL,	"\033[%p1%dM"},
389 #  else
390     {(int)KS_CDL,	"\033[%dM"},
391 #  endif
392     {(int)KS_CL,	"\033[H\033[2J"},
393 #ifdef notyet
394     {(int)KS_VI,	"[VI]"}, // cursor invisible, VT320: CSI ? 25 l
395     {(int)KS_VE,	"[VE]"}, // cursor visible, VT320: CSI ? 25 h
396 #endif
397     {(int)KS_ME,	"\033[m"},	// normal mode
398     {(int)KS_MR,	"\033[7m"},	// reverse
399     {(int)KS_MD,	"\033[1m"},	// bold
400     {(int)KS_SO,	"\033[31m"},	// standout mode: red
401     {(int)KS_SE,	"\033[m"},	// standout end
402     {(int)KS_CZH,	"\033[35m"},	// italic: purple
403     {(int)KS_CZR,	"\033[m"},	// italic end
404     {(int)KS_US,	"\033[4m"},	// underscore mode
405     {(int)KS_UE,	"\033[m"},	// underscore end
406     {(int)KS_CCO,	"8"},		// allow 8 colors
407 #  ifdef TERMINFO
408     {(int)KS_CAB,	"\033[4%p1%dm"},// set background color
409     {(int)KS_CAF,	"\033[3%p1%dm"},// set foreground color
410 #  else
411     {(int)KS_CAB,	"\033[4%dm"},	// set background color
412     {(int)KS_CAF,	"\033[3%dm"},	// set foreground color
413 #  endif
414     {(int)KS_OP,	"\033[m"},	// reset colors
415     {(int)KS_MS,	"y"},		// safe to move cur in reverse mode
416     {(int)KS_UT,	"y"},		// guessed
417     {(int)KS_LE,	"\b"},
418 #  ifdef TERMINFO
419     {(int)KS_CM,	"\033[%i%p1%d;%p2%dH"},
420 #  else
421     {(int)KS_CM,	"\033[%i%d;%dH"},
422 #  endif
423     {(int)KS_SR,	"\033M"},
424 #  ifdef TERMINFO
425     {(int)KS_CRI,	"\033[%p1%dC"},
426 #  else
427     {(int)KS_CRI,	"\033[%dC"},
428 #  endif
429 
430     {K_UP,		"\033[A"},
431     {K_DOWN,		"\033[B"},
432     {K_LEFT,		"\033[D"},
433     {K_RIGHT,		"\033[C"},
434 # endif
435 
436 # if defined(UNIX) || defined(ALL_BUILTIN_TCAPS) || defined(SOME_BUILTIN_TCAPS)
437 /*
438  * standard ANSI terminal, default for unix
439  */
440     {(int)KS_NAME,	"ansi"},
441     {(int)KS_CE,	IF_EB("\033[K", ESC_STR "[K")},
442     {(int)KS_AL,	IF_EB("\033[L", ESC_STR "[L")},
443 #  ifdef TERMINFO
444     {(int)KS_CAL,	IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
445 #  else
446     {(int)KS_CAL,	IF_EB("\033[%dL", ESC_STR "[%dL")},
447 #  endif
448     {(int)KS_DL,	IF_EB("\033[M", ESC_STR "[M")},
449 #  ifdef TERMINFO
450     {(int)KS_CDL,	IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
451 #  else
452     {(int)KS_CDL,	IF_EB("\033[%dM", ESC_STR "[%dM")},
453 #  endif
454     {(int)KS_CL,	IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
455     {(int)KS_ME,	IF_EB("\033[0m", ESC_STR "[0m")},
456     {(int)KS_MR,	IF_EB("\033[7m", ESC_STR "[7m")},
457     {(int)KS_MS,	"y"},
458     {(int)KS_UT,	"y"},		// guessed
459     {(int)KS_LE,	"\b"},
460 #  ifdef TERMINFO
461     {(int)KS_CM,	IF_EB("\033[%i%p1%d;%p2%dH", ESC_STR "[%i%p1%d;%p2%dH")},
462 #  else
463     {(int)KS_CM,	IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
464 #  endif
465 #  ifdef TERMINFO
466     {(int)KS_CRI,	IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
467 #  else
468     {(int)KS_CRI,	IF_EB("\033[%dC", ESC_STR "[%dC")},
469 #  endif
470 # endif
471 
472 # if defined(ALL_BUILTIN_TCAPS)
473 /*
474  * These codes are valid when nansi.sys or equivalent has been installed.
475  * Function keys on a PC are preceded with a NUL. These are converted into
476  * K_NUL '\316' in mch_inchar(), because we cannot handle NULs in key codes.
477  * CTRL-arrow is used instead of SHIFT-arrow.
478  */
479     {(int)KS_NAME,	"pcansi"},
480     {(int)KS_DL,	"\033[M"},
481     {(int)KS_AL,	"\033[L"},
482     {(int)KS_CE,	"\033[K"},
483     {(int)KS_CL,	"\033[2J"},
484     {(int)KS_ME,	"\033[0m"},
485     {(int)KS_MR,	"\033[5m"},	// reverse: black on lightgrey
486     {(int)KS_MD,	"\033[1m"},	// bold: white text
487     {(int)KS_SE,	"\033[0m"},	// standout end
488     {(int)KS_SO,	"\033[31m"},	// standout: white on blue
489     {(int)KS_CZH,	"\033[34;43m"},	// italic mode: blue text on yellow
490     {(int)KS_CZR,	"\033[0m"},	// italic mode end
491     {(int)KS_US,	"\033[36;41m"},	// underscore mode: cyan text on red
492     {(int)KS_UE,	"\033[0m"},	// underscore mode end
493     {(int)KS_CCO,	"8"},		// allow 8 colors
494 #  ifdef TERMINFO
495     {(int)KS_CAB,	"\033[4%p1%dm"},// set background color
496     {(int)KS_CAF,	"\033[3%p1%dm"},// set foreground color
497 #  else
498     {(int)KS_CAB,	"\033[4%dm"},	// set background color
499     {(int)KS_CAF,	"\033[3%dm"},	// set foreground color
500 #  endif
501     {(int)KS_OP,	"\033[0m"},	// reset colors
502     {(int)KS_MS,	"y"},
503     {(int)KS_UT,	"y"},		// guessed
504     {(int)KS_LE,	"\b"},
505 #  ifdef TERMINFO
506     {(int)KS_CM,	"\033[%i%p1%d;%p2%dH"},
507 #  else
508     {(int)KS_CM,	"\033[%i%d;%dH"},
509 #  endif
510 #  ifdef TERMINFO
511     {(int)KS_CRI,	"\033[%p1%dC"},
512 #  else
513     {(int)KS_CRI,	"\033[%dC"},
514 #  endif
515     {K_UP,		"\316H"},
516     {K_DOWN,		"\316P"},
517     {K_LEFT,		"\316K"},
518     {K_RIGHT,		"\316M"},
519     {K_S_LEFT,		"\316s"},
520     {K_S_RIGHT,		"\316t"},
521     {K_F1,		"\316;"},
522     {K_F2,		"\316<"},
523     {K_F3,		"\316="},
524     {K_F4,		"\316>"},
525     {K_F5,		"\316?"},
526     {K_F6,		"\316@"},
527     {K_F7,		"\316A"},
528     {K_F8,		"\316B"},
529     {K_F9,		"\316C"},
530     {K_F10,		"\316D"},
531     {K_F11,		"\316\205"},	// guessed
532     {K_F12,		"\316\206"},	// guessed
533     {K_S_F1,		"\316T"},
534     {K_S_F2,		"\316U"},
535     {K_S_F3,		"\316V"},
536     {K_S_F4,		"\316W"},
537     {K_S_F5,		"\316X"},
538     {K_S_F6,		"\316Y"},
539     {K_S_F7,		"\316Z"},
540     {K_S_F8,		"\316["},
541     {K_S_F9,		"\316\\"},
542     {K_S_F10,		"\316]"},
543     {K_S_F11,		"\316\207"},	// guessed
544     {K_S_F12,		"\316\210"},	// guessed
545     {K_INS,		"\316R"},
546     {K_DEL,		"\316S"},
547     {K_HOME,		"\316G"},
548     {K_END,		"\316O"},
549     {K_PAGEDOWN,	"\316Q"},
550     {K_PAGEUP,		"\316I"},
551 # endif
552 
553 # if defined(MSWIN) || defined(ALL_BUILTIN_TCAPS)
554 /*
555  * These codes are valid for the Win32 Console .  The entries that start with
556  * ESC | are translated into console calls in os_win32.c.  The function keys
557  * are also translated in os_win32.c.
558  */
559     {(int)KS_NAME,	"win32"},
560     {(int)KS_CE,	"\033|K"},	// clear to end of line
561     {(int)KS_AL,	"\033|L"},	// add new blank line
562 #  ifdef TERMINFO
563     {(int)KS_CAL,	"\033|%p1%dL"},	// add number of new blank lines
564 #  else
565     {(int)KS_CAL,	"\033|%dL"},	// add number of new blank lines
566 #  endif
567     {(int)KS_DL,	"\033|M"},	// delete line
568 #  ifdef TERMINFO
569     {(int)KS_CDL,	"\033|%p1%dM"},	// delete number of lines
570     {(int)KS_CSV,	"\033|%p1%d;%p2%dV"},
571 #  else
572     {(int)KS_CDL,	"\033|%dM"},	// delete number of lines
573     {(int)KS_CSV,	"\033|%d;%dV"},
574 #  endif
575     {(int)KS_CL,	"\033|J"},	// clear screen
576     {(int)KS_CD,	"\033|j"},	// clear to end of display
577     {(int)KS_VI,	"\033|v"},	// cursor invisible
578     {(int)KS_VE,	"\033|V"},	// cursor visible
579 
580     {(int)KS_ME,	"\033|0m"},	// normal
581     {(int)KS_MR,	"\033|112m"},	// reverse: black on lightgray
582     {(int)KS_MD,	"\033|15m"},	// bold: white on black
583 #if 1
584     {(int)KS_SO,	"\033|31m"},	// standout: white on blue
585     {(int)KS_SE,	"\033|0m"},	// standout end
586 #else
587     {(int)KS_SO,	"\033|F"},	// standout: high intensity
588     {(int)KS_SE,	"\033|f"},	// standout end
589 #endif
590     {(int)KS_CZH,	"\033|225m"},	// italic: blue text on yellow
591     {(int)KS_CZR,	"\033|0m"},	// italic end
592     {(int)KS_US,	"\033|67m"},	// underscore: cyan text on red
593     {(int)KS_UE,	"\033|0m"},	// underscore end
594     {(int)KS_CCO,	"16"},		// allow 16 colors
595 #  ifdef TERMINFO
596     {(int)KS_CAB,	"\033|%p1%db"},	// set background color
597     {(int)KS_CAF,	"\033|%p1%df"},	// set foreground color
598 #  else
599     {(int)KS_CAB,	"\033|%db"},	// set background color
600     {(int)KS_CAF,	"\033|%df"},	// set foreground color
601 #  endif
602 
603     {(int)KS_MS,	"y"},		// save to move cur in reverse mode
604     {(int)KS_UT,	"y"},
605     {(int)KS_XN,	"y"},
606     {(int)KS_LE,	"\b"},
607 #  ifdef TERMINFO
608     {(int)KS_CM,	"\033|%i%p1%d;%p2%dH"}, // cursor motion
609 #  else
610     {(int)KS_CM,	"\033|%i%d;%dH"}, // cursor motion
611 #  endif
612     {(int)KS_VB,	"\033|B"},	// visual bell
613     {(int)KS_TI,	"\033|S"},	// put terminal in termcap mode
614     {(int)KS_TE,	"\033|E"},	// out of termcap mode
615 #  ifdef TERMINFO
616     {(int)KS_CS,	"\033|%i%p1%d;%p2%dr"}, // scroll region
617 #  else
618     {(int)KS_CS,	"\033|%i%d;%dr"}, // scroll region
619 #  endif
620 #  ifdef FEAT_TERMGUICOLORS
621     {(int)KS_8F,	"\033|38;2;%lu;%lu;%lum"},
622     {(int)KS_8B,	"\033|48;2;%lu;%lu;%lum"},
623 #  endif
624 
625     {K_UP,		"\316H"},
626     {K_DOWN,		"\316P"},
627     {K_LEFT,		"\316K"},
628     {K_RIGHT,		"\316M"},
629     {K_S_UP,		"\316\304"},
630     {K_S_DOWN,		"\316\317"},
631     {K_S_LEFT,		"\316\311"},
632     {K_C_LEFT,		"\316s"},
633     {K_S_RIGHT,		"\316\313"},
634     {K_C_RIGHT,		"\316t"},
635     {K_S_TAB,		"\316\017"},
636     {K_F1,		"\316;"},
637     {K_F2,		"\316<"},
638     {K_F3,		"\316="},
639     {K_F4,		"\316>"},
640     {K_F5,		"\316?"},
641     {K_F6,		"\316@"},
642     {K_F7,		"\316A"},
643     {K_F8,		"\316B"},
644     {K_F9,		"\316C"},
645     {K_F10,		"\316D"},
646     {K_F11,		"\316\205"},
647     {K_F12,		"\316\206"},
648     {K_S_F1,		"\316T"},
649     {K_S_F2,		"\316U"},
650     {K_S_F3,		"\316V"},
651     {K_S_F4,		"\316W"},
652     {K_S_F5,		"\316X"},
653     {K_S_F6,		"\316Y"},
654     {K_S_F7,		"\316Z"},
655     {K_S_F8,		"\316["},
656     {K_S_F9,		"\316\\"},
657     {K_S_F10,		"\316]"},
658     {K_S_F11,		"\316\207"},
659     {K_S_F12,		"\316\210"},
660     {K_INS,		"\316R"},
661     {K_DEL,		"\316S"},
662     {K_HOME,		"\316G"},
663     {K_S_HOME,		"\316\302"},
664     {K_C_HOME,		"\316w"},
665     {K_END,		"\316O"},
666     {K_S_END,		"\316\315"},
667     {K_C_END,		"\316u"},
668     {K_PAGEDOWN,	"\316Q"},
669     {K_PAGEUP,		"\316I"},
670     {K_KPLUS,		"\316N"},
671     {K_KMINUS,		"\316J"},
672     {K_KMULTIPLY,	"\316\067"},
673     {K_K0,		"\316\332"},
674     {K_K1,		"\316\336"},
675     {K_K2,		"\316\342"},
676     {K_K3,		"\316\346"},
677     {K_K4,		"\316\352"},
678     {K_K5,		"\316\356"},
679     {K_K6,		"\316\362"},
680     {K_K7,		"\316\366"},
681     {K_K8,		"\316\372"},
682     {K_K9,		"\316\376"},
683     {K_BS,		"\316x"},
684 # endif
685 
686 # if defined(VMS) || defined(ALL_BUILTIN_TCAPS)
687 /*
688  * VT320 is working as an ANSI terminal compatible DEC terminal.
689  * (it covers VT1x0, VT2x0 and VT3x0 up to VT320 on VMS as well)
690  * TODO:- rewrite ESC[ codes to CSI
691  *      - keyboard languages (CSI ? 26 n)
692  */
693     {(int)KS_NAME,	"vt320"},
694     {(int)KS_CE,	IF_EB("\033[K", ESC_STR "[K")},
695     {(int)KS_AL,	IF_EB("\033[L", ESC_STR "[L")},
696 #  ifdef TERMINFO
697     {(int)KS_CAL,	IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
698 #  else
699     {(int)KS_CAL,	IF_EB("\033[%dL", ESC_STR "[%dL")},
700 #  endif
701     {(int)KS_DL,	IF_EB("\033[M", ESC_STR "[M")},
702 #  ifdef TERMINFO
703     {(int)KS_CDL,	IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
704 #  else
705     {(int)KS_CDL,	IF_EB("\033[%dM", ESC_STR "[%dM")},
706 #  endif
707     {(int)KS_CL,	IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
708     {(int)KS_CD,	IF_EB("\033[J", ESC_STR "[J")},
709     {(int)KS_CCO,	"8"},			// allow 8 colors
710     {(int)KS_ME,	IF_EB("\033[0m", ESC_STR "[0m")},
711     {(int)KS_MR,	IF_EB("\033[7m", ESC_STR "[7m")},
712     {(int)KS_MD,	IF_EB("\033[1m", ESC_STR "[1m")},  // bold mode
713     {(int)KS_SE,	IF_EB("\033[22m", ESC_STR "[22m")},// normal mode
714     {(int)KS_UE,	IF_EB("\033[24m", ESC_STR "[24m")},// exit underscore mode
715     {(int)KS_US,	IF_EB("\033[4m", ESC_STR "[4m")},  // underscore mode
716     {(int)KS_CZH,	IF_EB("\033[34;43m", ESC_STR "[34;43m")},  // italic mode: blue text on yellow
717     {(int)KS_CZR,	IF_EB("\033[0m", ESC_STR "[0m")},	    // italic mode end
718     {(int)KS_CAB,	IF_EB("\033[4%dm", ESC_STR "[4%dm")},	    // set background color (ANSI)
719     {(int)KS_CAF,	IF_EB("\033[3%dm", ESC_STR "[3%dm")},	    // set foreground color (ANSI)
720     {(int)KS_CSB,	IF_EB("\033[102;%dm", ESC_STR "[102;%dm")},	// set screen background color
721     {(int)KS_CSF,	IF_EB("\033[101;%dm", ESC_STR "[101;%dm")},	// set screen foreground color
722     {(int)KS_MS,	"y"},
723     {(int)KS_UT,	"y"},
724     {(int)KS_XN,	"y"},
725     {(int)KS_LE,	"\b"},
726 #  ifdef TERMINFO
727     {(int)KS_CM,	IF_EB("\033[%i%p1%d;%p2%dH",
728 						  ESC_STR "[%i%p1%d;%p2%dH")},
729 #  else
730     {(int)KS_CM,	IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
731 #  endif
732 #  ifdef TERMINFO
733     {(int)KS_CRI,	IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
734 #  else
735     {(int)KS_CRI,	IF_EB("\033[%dC", ESC_STR "[%dC")},
736 #  endif
737     {K_UP,		IF_EB("\033[A", ESC_STR "[A")},
738     {K_DOWN,		IF_EB("\033[B", ESC_STR "[B")},
739     {K_RIGHT,		IF_EB("\033[C", ESC_STR "[C")},
740     {K_LEFT,		IF_EB("\033[D", ESC_STR "[D")},
741     // Note: cursor key sequences for application cursor mode are omitted,
742     // because they interfere with typed commands: <Esc>OA.
743     {K_F1,		IF_EB("\033[11~", ESC_STR "[11~")},
744     {K_F2,		IF_EB("\033[12~", ESC_STR "[12~")},
745     {K_F3,		IF_EB("\033[13~", ESC_STR "[13~")},
746     {K_F4,		IF_EB("\033[14~", ESC_STR "[14~")},
747     {K_F5,		IF_EB("\033[15~", ESC_STR "[15~")},
748     {K_F6,		IF_EB("\033[17~", ESC_STR "[17~")},
749     {K_F7,		IF_EB("\033[18~", ESC_STR "[18~")},
750     {K_F8,		IF_EB("\033[19~", ESC_STR "[19~")},
751     {K_F9,		IF_EB("\033[20~", ESC_STR "[20~")},
752     {K_F10,		IF_EB("\033[21~", ESC_STR "[21~")},
753     {K_F11,		IF_EB("\033[23~", ESC_STR "[23~")},
754     {K_F12,		IF_EB("\033[24~", ESC_STR "[24~")},
755     {K_F13,		IF_EB("\033[25~", ESC_STR "[25~")},
756     {K_F14,		IF_EB("\033[26~", ESC_STR "[26~")},
757     {K_F15,		IF_EB("\033[28~", ESC_STR "[28~")},	// Help
758     {K_F16,		IF_EB("\033[29~", ESC_STR "[29~")},	// Select
759     {K_F17,		IF_EB("\033[31~", ESC_STR "[31~")},
760     {K_F18,		IF_EB("\033[32~", ESC_STR "[32~")},
761     {K_F19,		IF_EB("\033[33~", ESC_STR "[33~")},
762     {K_F20,		IF_EB("\033[34~", ESC_STR "[34~")},
763     {K_INS,		IF_EB("\033[2~", ESC_STR "[2~")},
764     {K_DEL,		IF_EB("\033[3~", ESC_STR "[3~")},
765     {K_HOME,		IF_EB("\033[1~", ESC_STR "[1~")},
766     {K_END,		IF_EB("\033[4~", ESC_STR "[4~")},
767     {K_PAGEUP,		IF_EB("\033[5~", ESC_STR "[5~")},
768     {K_PAGEDOWN,	IF_EB("\033[6~", ESC_STR "[6~")},
769     // These sequences starting with <Esc> O may interfere with what the user
770     // is typing.  Remove these if that bothers you.
771     {K_KPLUS,		IF_EB("\033Ok", ESC_STR "Ok")},	// keypad plus
772     {K_KMINUS,		IF_EB("\033Om", ESC_STR "Om")},	// keypad minus
773     {K_KDIVIDE,		IF_EB("\033Oo", ESC_STR "Oo")},	// keypad /
774     {K_KMULTIPLY,	IF_EB("\033Oj", ESC_STR "Oj")},	// keypad *
775     {K_KENTER,		IF_EB("\033OM", ESC_STR "OM")},	// keypad Enter
776     {K_K0,		IF_EB("\033Op", ESC_STR "Op")},	// keypad 0
777     {K_K1,		IF_EB("\033Oq", ESC_STR "Oq")},	// keypad 1
778     {K_K2,		IF_EB("\033Or", ESC_STR "Or")},	// keypad 2
779     {K_K3,		IF_EB("\033Os", ESC_STR "Os")},	// keypad 3
780     {K_K4,		IF_EB("\033Ot", ESC_STR "Ot")},	// keypad 4
781     {K_K5,		IF_EB("\033Ou", ESC_STR "Ou")},	// keypad 5
782     {K_K6,		IF_EB("\033Ov", ESC_STR "Ov")},	// keypad 6
783     {K_K7,		IF_EB("\033Ow", ESC_STR "Ow")},	// keypad 7
784     {K_K8,		IF_EB("\033Ox", ESC_STR "Ox")},	// keypad 8
785     {K_K9,		IF_EB("\033Oy", ESC_STR "Oy")},	// keypad 9
786     {K_BS,		"\x7f"},	// for some reason 0177 doesn't work
787 # endif
788 
789 # if defined(ALL_BUILTIN_TCAPS)
790 /*
791  * Ordinary vt52
792  */
793     {(int)KS_NAME,	"vt52"},
794     {(int)KS_CE,	IF_EB("\033K", ESC_STR "K")},
795     {(int)KS_CD,	IF_EB("\033J", ESC_STR "J")},
796 #  ifdef TERMINFO
797     {(int)KS_CM,	IF_EB("\033Y%p1%' '%+%c%p2%' '%+%c",
798 			    ESC_STR "Y%p1%' '%+%c%p2%' '%+%c")},
799 #  else
800     {(int)KS_CM,	IF_EB("\033Y%+ %+ ", ESC_STR "Y%+ %+ ")},
801 #  endif
802     {(int)KS_LE,	"\b"},
803     {(int)KS_SR,	IF_EB("\033I", ESC_STR "I")},
804     {(int)KS_AL,	IF_EB("\033L", ESC_STR "L")},
805     {(int)KS_DL,	IF_EB("\033M", ESC_STR "M")},
806     {K_UP,		IF_EB("\033A", ESC_STR "A")},
807     {K_DOWN,		IF_EB("\033B", ESC_STR "B")},
808     {K_LEFT,		IF_EB("\033D", ESC_STR "D")},
809     {K_RIGHT,		IF_EB("\033C", ESC_STR "C")},
810     {K_F1,		IF_EB("\033P", ESC_STR "P")},
811     {K_F2,		IF_EB("\033Q", ESC_STR "Q")},
812     {K_F3,		IF_EB("\033R", ESC_STR "R")},
813     {(int)KS_CL,	IF_EB("\033H\033J", ESC_STR "H" ESC_STR_nc "J")},
814     {(int)KS_MS,	"y"},
815 # endif
816 
817 # if defined(UNIX) || defined(ALL_BUILTIN_TCAPS) || defined(SOME_BUILTIN_TCAPS)
818     {(int)KS_NAME,	"xterm"},
819     {(int)KS_CE,	IF_EB("\033[K", ESC_STR "[K")},
820     {(int)KS_AL,	IF_EB("\033[L", ESC_STR "[L")},
821 #  ifdef TERMINFO
822     {(int)KS_CAL,	IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
823 #  else
824     {(int)KS_CAL,	IF_EB("\033[%dL", ESC_STR "[%dL")},
825 #  endif
826     {(int)KS_DL,	IF_EB("\033[M", ESC_STR "[M")},
827 #  ifdef TERMINFO
828     {(int)KS_CDL,	IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
829 #  else
830     {(int)KS_CDL,	IF_EB("\033[%dM", ESC_STR "[%dM")},
831 #  endif
832 #  ifdef TERMINFO
833     {(int)KS_CS,	IF_EB("\033[%i%p1%d;%p2%dr",
834 						  ESC_STR "[%i%p1%d;%p2%dr")},
835 #  else
836     {(int)KS_CS,	IF_EB("\033[%i%d;%dr", ESC_STR "[%i%d;%dr")},
837 #  endif
838     {(int)KS_CL,	IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
839     {(int)KS_CD,	IF_EB("\033[J", ESC_STR "[J")},
840     {(int)KS_ME,	IF_EB("\033[m", ESC_STR "[m")},
841     {(int)KS_MR,	IF_EB("\033[7m", ESC_STR "[7m")},
842     {(int)KS_MD,	IF_EB("\033[1m", ESC_STR "[1m")},
843     {(int)KS_UE,	IF_EB("\033[m", ESC_STR "[m")},
844     {(int)KS_US,	IF_EB("\033[4m", ESC_STR "[4m")},
845     {(int)KS_STE,	IF_EB("\033[29m", ESC_STR "[29m")},
846     {(int)KS_STS,	IF_EB("\033[9m", ESC_STR "[9m")},
847     {(int)KS_MS,	"y"},
848     {(int)KS_UT,	"y"},
849     {(int)KS_LE,	"\b"},
850     {(int)KS_VI,	IF_EB("\033[?25l", ESC_STR "[?25l")},
851     {(int)KS_VE,	IF_EB("\033[?25h", ESC_STR "[?25h")},
852     {(int)KS_VS,	IF_EB("\033[?12h", ESC_STR "[?12h")},
853     {(int)KS_CVS,	IF_EB("\033[?12l", ESC_STR "[?12l")},
854 #  ifdef TERMINFO
855     {(int)KS_CSH,	IF_EB("\033[%p1%d q", ESC_STR "[%p1%d q")},
856 #  else
857     {(int)KS_CSH,	IF_EB("\033[%d q", ESC_STR "[%d q")},
858 #  endif
859     {(int)KS_CRC,	IF_EB("\033[?12$p", ESC_STR "[?12$p")},
860     {(int)KS_CRS,	IF_EB("\033P$q q\033\\", ESC_STR "P$q q" ESC_STR "\\")},
861 #  ifdef TERMINFO
862     {(int)KS_CM,	IF_EB("\033[%i%p1%d;%p2%dH",
863 						  ESC_STR "[%i%p1%d;%p2%dH")},
864 #  else
865     {(int)KS_CM,	IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
866 #  endif
867     {(int)KS_SR,	IF_EB("\033M", ESC_STR "M")},
868 #  ifdef TERMINFO
869     {(int)KS_CRI,	IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
870 #  else
871     {(int)KS_CRI,	IF_EB("\033[%dC", ESC_STR "[%dC")},
872 #  endif
873     {(int)KS_KS,	IF_EB("\033[?1h\033=", ESC_STR "[?1h" ESC_STR_nc "=")},
874     {(int)KS_KE,	IF_EB("\033[?1l\033>", ESC_STR "[?1l" ESC_STR_nc ">")},
875 #  ifdef FEAT_XTERM_SAVE
876     {(int)KS_TI,	IF_EB("\0337\033[?47h", ESC_STR "7" ESC_STR_nc "[?47h")},
877     {(int)KS_TE,	IF_EB("\033[?47l\0338",
878 					   ESC_STR_nc "[?47l" ESC_STR_nc "8")},
879 #  endif
880     {(int)KS_CTI,	IF_EB("\033[>4;2m", ESC_STR_nc "[>4;2m")},
881     {(int)KS_CTE,	IF_EB("\033[>4;m", ESC_STR_nc "[>4;m")},
882     {(int)KS_CIS,	IF_EB("\033]1;", ESC_STR "]1;")},
883     {(int)KS_CIE,	"\007"},
884     {(int)KS_TS,	IF_EB("\033]2;", ESC_STR "]2;")},
885     {(int)KS_FS,	"\007"},
886     {(int)KS_CSC,	IF_EB("\033]12;", ESC_STR "]12;")},
887     {(int)KS_CEC,	"\007"},
888 #  ifdef TERMINFO
889     {(int)KS_CWS,	IF_EB("\033[8;%p1%d;%p2%dt",
890 						  ESC_STR "[8;%p1%d;%p2%dt")},
891     {(int)KS_CWP,	IF_EB("\033[3;%p1%d;%p2%dt",
892 						  ESC_STR "[3;%p1%d;%p2%dt")},
893     {(int)KS_CGP,	IF_EB("\033[13t", ESC_STR "[13t")},
894 #  else
895     {(int)KS_CWS,	IF_EB("\033[8;%d;%dt", ESC_STR "[8;%d;%dt")},
896     {(int)KS_CWP,	IF_EB("\033[3;%d;%dt", ESC_STR "[3;%d;%dt")},
897     {(int)KS_CGP,	IF_EB("\033[13t", ESC_STR "[13t")},
898 #  endif
899     {(int)KS_CRV,	IF_EB("\033[>c", ESC_STR "[>c")},
900     {(int)KS_RFG,	IF_EB("\033]10;?\007", ESC_STR "]10;?\007")},
901     {(int)KS_RBG,	IF_EB("\033]11;?\007", ESC_STR "]11;?\007")},
902     {(int)KS_U7,	IF_EB("\033[6n", ESC_STR "[6n")},
903 #  ifdef FEAT_TERMGUICOLORS
904     // These are printf strings, not terminal codes.
905     {(int)KS_8F,	IF_EB("\033[38;2;%lu;%lu;%lum", ESC_STR "[38;2;%lu;%lu;%lum")},
906     {(int)KS_8B,	IF_EB("\033[48;2;%lu;%lu;%lum", ESC_STR "[48;2;%lu;%lu;%lum")},
907     {(int)KS_8U,	IF_EB("\033[58;2;%lu;%lu;%lum", ESC_STR "[58;2;%lu;%lu;%lum")},
908 #  endif
909     {(int)KS_CAU,	IF_EB("\033[58;5;%dm", ESC_STR "[58;5;%dm")},
910     {(int)KS_CBE,	IF_EB("\033[?2004h", ESC_STR "[?2004h")},
911     {(int)KS_CBD,	IF_EB("\033[?2004l", ESC_STR "[?2004l")},
912     {(int)KS_CST,	IF_EB("\033[22;2t", ESC_STR "[22;2t")},
913     {(int)KS_CRT,	IF_EB("\033[23;2t", ESC_STR "[23;2t")},
914     {(int)KS_SSI,	IF_EB("\033[22;1t", ESC_STR "[22;1t")},
915     {(int)KS_SRI,	IF_EB("\033[23;1t", ESC_STR "[23;1t")},
916 #  if (defined(UNIX) || defined(VMS))
917     {(int)KS_FD,	IF_EB("\033[?1004l", ESC_STR "[?1004l")},
918     {(int)KS_FE,	IF_EB("\033[?1004h", ESC_STR "[?1004h")},
919 #  endif
920 
921     {K_UP,		IF_EB("\033O*A", ESC_STR "O*A")},
922     {K_DOWN,		IF_EB("\033O*B", ESC_STR "O*B")},
923     {K_RIGHT,		IF_EB("\033O*C", ESC_STR "O*C")},
924     {K_LEFT,		IF_EB("\033O*D", ESC_STR "O*D")},
925     // An extra set of cursor keys for vt100 mode
926     {K_XUP,		IF_EB("\033[@;*A", ESC_STR "[@;*A")},
927     {K_XDOWN,		IF_EB("\033[@;*B", ESC_STR "[@;*B")},
928     {K_XRIGHT,		IF_EB("\033[@;*C", ESC_STR "[@;*C")},
929     {K_XLEFT,		IF_EB("\033[@;*D", ESC_STR "[@;*D")},
930     // An extra set of function keys for vt100 mode
931     {K_XF1,		IF_EB("\033O*P", ESC_STR "O*P")},
932     {K_XF2,		IF_EB("\033O*Q", ESC_STR "O*Q")},
933     {K_XF3,		IF_EB("\033O*R", ESC_STR "O*R")},
934     {K_XF4,		IF_EB("\033O*S", ESC_STR "O*S")},
935     {K_F1,		IF_EB("\033[11;*~", ESC_STR "[11;*~")},
936     {K_F2,		IF_EB("\033[12;*~", ESC_STR "[12;*~")},
937     {K_F3,		IF_EB("\033[13;*~", ESC_STR "[13;*~")},
938     {K_F4,		IF_EB("\033[14;*~", ESC_STR "[14;*~")},
939     {K_F5,		IF_EB("\033[15;*~", ESC_STR "[15;*~")},
940     {K_F6,		IF_EB("\033[17;*~", ESC_STR "[17;*~")},
941     {K_F7,		IF_EB("\033[18;*~", ESC_STR "[18;*~")},
942     {K_F8,		IF_EB("\033[19;*~", ESC_STR "[19;*~")},
943     {K_F9,		IF_EB("\033[20;*~", ESC_STR "[20;*~")},
944     {K_F10,		IF_EB("\033[21;*~", ESC_STR "[21;*~")},
945     {K_F11,		IF_EB("\033[23;*~", ESC_STR "[23;*~")},
946     {K_F12,		IF_EB("\033[24;*~", ESC_STR "[24;*~")},
947     {K_S_TAB,		IF_EB("\033[Z", ESC_STR "[Z")},
948     {K_HELP,		IF_EB("\033[28;*~", ESC_STR "[28;*~")},
949     {K_UNDO,		IF_EB("\033[26;*~", ESC_STR "[26;*~")},
950     {K_INS,		IF_EB("\033[2;*~", ESC_STR "[2;*~")},
951     {K_HOME,		IF_EB("\033[1;*H", ESC_STR "[1;*H")},
952     // {K_S_HOME,		IF_EB("\033O2H", ESC_STR "O2H")},
953     // {K_C_HOME,		IF_EB("\033O5H", ESC_STR "O5H")},
954     {K_KHOME,		IF_EB("\033[1;*~", ESC_STR "[1;*~")},
955     {K_XHOME,		IF_EB("\033O*H", ESC_STR "O*H")},	// other Home
956     {K_ZHOME,		IF_EB("\033[7;*~", ESC_STR "[7;*~")},	// other Home
957     {K_END,		IF_EB("\033[1;*F", ESC_STR "[1;*F")},
958     // {K_S_END,		IF_EB("\033O2F", ESC_STR "O2F")},
959     // {K_C_END,		IF_EB("\033O5F", ESC_STR "O5F")},
960     {K_KEND,		IF_EB("\033[4;*~", ESC_STR "[4;*~")},
961     {K_XEND,		IF_EB("\033O*F", ESC_STR "O*F")},	// other End
962     {K_ZEND,		IF_EB("\033[8;*~", ESC_STR "[8;*~")},
963     {K_PAGEUP,		IF_EB("\033[5;*~", ESC_STR "[5;*~")},
964     {K_PAGEDOWN,	IF_EB("\033[6;*~", ESC_STR "[6;*~")},
965     {K_KPLUS,		IF_EB("\033O*k", ESC_STR "O*k")},     // keypad plus
966     {K_KMINUS,		IF_EB("\033O*m", ESC_STR "O*m")},     // keypad minus
967     {K_KDIVIDE,		IF_EB("\033O*o", ESC_STR "O*o")},     // keypad /
968     {K_KMULTIPLY,	IF_EB("\033O*j", ESC_STR "O*j")},     // keypad *
969     {K_KENTER,		IF_EB("\033O*M", ESC_STR "O*M")},     // keypad Enter
970     {K_KPOINT,		IF_EB("\033O*n", ESC_STR "O*n")},     // keypad .
971     {K_K0,		IF_EB("\033O*p", ESC_STR "O*p")},     // keypad 0
972     {K_K1,		IF_EB("\033O*q", ESC_STR "O*q")},     // keypad 1
973     {K_K2,		IF_EB("\033O*r", ESC_STR "O*r")},     // keypad 2
974     {K_K3,		IF_EB("\033O*s", ESC_STR "O*s")},     // keypad 3
975     {K_K4,		IF_EB("\033O*t", ESC_STR "O*t")},     // keypad 4
976     {K_K5,		IF_EB("\033O*u", ESC_STR "O*u")},     // keypad 5
977     {K_K6,		IF_EB("\033O*v", ESC_STR "O*v")},     // keypad 6
978     {K_K7,		IF_EB("\033O*w", ESC_STR "O*w")},     // keypad 7
979     {K_K8,		IF_EB("\033O*x", ESC_STR "O*x")},     // keypad 8
980     {K_K9,		IF_EB("\033O*y", ESC_STR "O*y")},     // keypad 9
981     {K_KDEL,		IF_EB("\033[3;*~", ESC_STR "[3;*~")}, // keypad Del
982     {K_PS,		IF_EB("\033[200~", ESC_STR "[200~")}, // paste start
983     {K_PE,		IF_EB("\033[201~", ESC_STR "[201~")}, // paste end
984 
985     {BT_EXTRA_KEYS,   ""},
986     {TERMCAP2KEY('k', '0'), IF_EB("\033[10;*~", ESC_STR "[10;*~")}, // F0
987     {TERMCAP2KEY('F', '3'), IF_EB("\033[25;*~", ESC_STR "[25;*~")}, // F13
988     // F14 and F15 are missing, because they send the same codes as the undo
989     // and help key, although they don't work on all keyboards.
990     {TERMCAP2KEY('F', '6'), IF_EB("\033[29;*~", ESC_STR "[29;*~")}, // F16
991     {TERMCAP2KEY('F', '7'), IF_EB("\033[31;*~", ESC_STR "[31;*~")}, // F17
992     {TERMCAP2KEY('F', '8'), IF_EB("\033[32;*~", ESC_STR "[32;*~")}, // F18
993     {TERMCAP2KEY('F', '9'), IF_EB("\033[33;*~", ESC_STR "[33;*~")}, // F19
994     {TERMCAP2KEY('F', 'A'), IF_EB("\033[34;*~", ESC_STR "[34;*~")}, // F20
995 
996     {TERMCAP2KEY('F', 'B'), IF_EB("\033[42;*~", ESC_STR "[42;*~")}, // F21
997     {TERMCAP2KEY('F', 'C'), IF_EB("\033[43;*~", ESC_STR "[43;*~")}, // F22
998     {TERMCAP2KEY('F', 'D'), IF_EB("\033[44;*~", ESC_STR "[44;*~")}, // F23
999     {TERMCAP2KEY('F', 'E'), IF_EB("\033[45;*~", ESC_STR "[45;*~")}, // F24
1000     {TERMCAP2KEY('F', 'F'), IF_EB("\033[46;*~", ESC_STR "[46;*~")}, // F25
1001     {TERMCAP2KEY('F', 'G'), IF_EB("\033[47;*~", ESC_STR "[47;*~")}, // F26
1002     {TERMCAP2KEY('F', 'H'), IF_EB("\033[48;*~", ESC_STR "[48;*~")}, // F27
1003     {TERMCAP2KEY('F', 'I'), IF_EB("\033[49;*~", ESC_STR "[49;*~")}, // F28
1004     {TERMCAP2KEY('F', 'J'), IF_EB("\033[50;*~", ESC_STR "[50;*~")}, // F29
1005     {TERMCAP2KEY('F', 'K'), IF_EB("\033[51;*~", ESC_STR "[51;*~")}, // F30
1006 
1007     {TERMCAP2KEY('F', 'L'), IF_EB("\033[52;*~", ESC_STR "[52;*~")}, // F31
1008     {TERMCAP2KEY('F', 'M'), IF_EB("\033[53;*~", ESC_STR "[53;*~")}, // F32
1009     {TERMCAP2KEY('F', 'N'), IF_EB("\033[54;*~", ESC_STR "[54;*~")}, // F33
1010     {TERMCAP2KEY('F', 'O'), IF_EB("\033[55;*~", ESC_STR "[55;*~")}, // F34
1011     {TERMCAP2KEY('F', 'P'), IF_EB("\033[56;*~", ESC_STR "[56;*~")}, // F35
1012     {TERMCAP2KEY('F', 'Q'), IF_EB("\033[57;*~", ESC_STR "[57;*~")}, // F36
1013     {TERMCAP2KEY('F', 'R'), IF_EB("\033[58;*~", ESC_STR "[58;*~")}, // F37
1014 # endif
1015 
1016 # if defined(UNIX) || defined(ALL_BUILTIN_TCAPS)
1017 /*
1018  * iris-ansi for Silicon Graphics machines.
1019  */
1020     {(int)KS_NAME,	"iris-ansi"},
1021     {(int)KS_CE,	"\033[K"},
1022     {(int)KS_CD,	"\033[J"},
1023     {(int)KS_AL,	"\033[L"},
1024 #  ifdef TERMINFO
1025     {(int)KS_CAL,	"\033[%p1%dL"},
1026 #  else
1027     {(int)KS_CAL,	"\033[%dL"},
1028 #  endif
1029     {(int)KS_DL,	"\033[M"},
1030 #  ifdef TERMINFO
1031     {(int)KS_CDL,	"\033[%p1%dM"},
1032 #  else
1033     {(int)KS_CDL,	"\033[%dM"},
1034 #  endif
1035 #if 0	// The scroll region is not working as Vim expects.
1036 #  ifdef TERMINFO
1037     {(int)KS_CS,	"\033[%i%p1%d;%p2%dr"},
1038 #  else
1039     {(int)KS_CS,	"\033[%i%d;%dr"},
1040 #  endif
1041 #endif
1042     {(int)KS_CL,	"\033[H\033[2J"},
1043     {(int)KS_VE,	"\033[9/y\033[12/y"},	// These aren't documented
1044     {(int)KS_VS,	"\033[10/y\033[=1h\033[=2l"}, // These aren't documented
1045     {(int)KS_TI,	"\033[=6h"},
1046     {(int)KS_TE,	"\033[=6l"},
1047     {(int)KS_SE,	"\033[21;27m"},
1048     {(int)KS_SO,	"\033[1;7m"},
1049     {(int)KS_ME,	"\033[m"},
1050     {(int)KS_MR,	"\033[7m"},
1051     {(int)KS_MD,	"\033[1m"},
1052     {(int)KS_CCO,	"8"},			// allow 8 colors
1053     {(int)KS_CZH,	"\033[3m"},		// italic mode on
1054     {(int)KS_CZR,	"\033[23m"},		// italic mode off
1055     {(int)KS_US,	"\033[4m"},		// underline on
1056     {(int)KS_UE,	"\033[24m"},		// underline off
1057 #  ifdef TERMINFO
1058     {(int)KS_CAB,	"\033[4%p1%dm"},    // set background color (ANSI)
1059     {(int)KS_CAF,	"\033[3%p1%dm"},    // set foreground color (ANSI)
1060     {(int)KS_CSB,	"\033[102;%p1%dm"}, // set screen background color
1061     {(int)KS_CSF,	"\033[101;%p1%dm"}, // set screen foreground color
1062 #  else
1063     {(int)KS_CAB,	"\033[4%dm"},	    // set background color (ANSI)
1064     {(int)KS_CAF,	"\033[3%dm"},	    // set foreground color (ANSI)
1065     {(int)KS_CSB,	"\033[102;%dm"},    // set screen background color
1066     {(int)KS_CSF,	"\033[101;%dm"},    // set screen foreground color
1067 #  endif
1068     {(int)KS_MS,	"y"},		// guessed
1069     {(int)KS_UT,	"y"},		// guessed
1070     {(int)KS_LE,	"\b"},
1071 #  ifdef TERMINFO
1072     {(int)KS_CM,	"\033[%i%p1%d;%p2%dH"},
1073 #  else
1074     {(int)KS_CM,	"\033[%i%d;%dH"},
1075 #  endif
1076     {(int)KS_SR,	"\033M"},
1077 #  ifdef TERMINFO
1078     {(int)KS_CRI,	"\033[%p1%dC"},
1079 #  else
1080     {(int)KS_CRI,	"\033[%dC"},
1081 #  endif
1082     {(int)KS_CIS,	"\033P3.y"},
1083     {(int)KS_CIE,	"\234"},    // ST "String Terminator"
1084     {(int)KS_TS,	"\033P1.y"},
1085     {(int)KS_FS,	"\234"},    // ST "String Terminator"
1086 #  ifdef TERMINFO
1087     {(int)KS_CWS,	"\033[203;%p1%d;%p2%d/y"},
1088     {(int)KS_CWP,	"\033[205;%p1%d;%p2%d/y"},
1089 #  else
1090     {(int)KS_CWS,	"\033[203;%d;%d/y"},
1091     {(int)KS_CWP,	"\033[205;%d;%d/y"},
1092 #  endif
1093     {K_UP,		"\033[A"},
1094     {K_DOWN,		"\033[B"},
1095     {K_LEFT,		"\033[D"},
1096     {K_RIGHT,		"\033[C"},
1097     {K_S_UP,		"\033[161q"},
1098     {K_S_DOWN,		"\033[164q"},
1099     {K_S_LEFT,		"\033[158q"},
1100     {K_S_RIGHT,		"\033[167q"},
1101     {K_F1,		"\033[001q"},
1102     {K_F2,		"\033[002q"},
1103     {K_F3,		"\033[003q"},
1104     {K_F4,		"\033[004q"},
1105     {K_F5,		"\033[005q"},
1106     {K_F6,		"\033[006q"},
1107     {K_F7,		"\033[007q"},
1108     {K_F8,		"\033[008q"},
1109     {K_F9,		"\033[009q"},
1110     {K_F10,		"\033[010q"},
1111     {K_F11,		"\033[011q"},
1112     {K_F12,		"\033[012q"},
1113     {K_S_F1,		"\033[013q"},
1114     {K_S_F2,		"\033[014q"},
1115     {K_S_F3,		"\033[015q"},
1116     {K_S_F4,		"\033[016q"},
1117     {K_S_F5,		"\033[017q"},
1118     {K_S_F6,		"\033[018q"},
1119     {K_S_F7,		"\033[019q"},
1120     {K_S_F8,		"\033[020q"},
1121     {K_S_F9,		"\033[021q"},
1122     {K_S_F10,		"\033[022q"},
1123     {K_S_F11,		"\033[023q"},
1124     {K_S_F12,		"\033[024q"},
1125     {K_INS,		"\033[139q"},
1126     {K_HOME,		"\033[H"},
1127     {K_END,		"\033[146q"},
1128     {K_PAGEUP,		"\033[150q"},
1129     {K_PAGEDOWN,	"\033[154q"},
1130 # endif
1131 
1132 # if defined(DEBUG) || defined(ALL_BUILTIN_TCAPS)
1133 /*
1134  * for debugging
1135  */
1136     {(int)KS_NAME,	"debug"},
1137     {(int)KS_CE,	"[CE]"},
1138     {(int)KS_CD,	"[CD]"},
1139     {(int)KS_AL,	"[AL]"},
1140 #  ifdef TERMINFO
1141     {(int)KS_CAL,	"[CAL%p1%d]"},
1142 #  else
1143     {(int)KS_CAL,	"[CAL%d]"},
1144 #  endif
1145     {(int)KS_DL,	"[DL]"},
1146 #  ifdef TERMINFO
1147     {(int)KS_CDL,	"[CDL%p1%d]"},
1148 #  else
1149     {(int)KS_CDL,	"[CDL%d]"},
1150 #  endif
1151 #  ifdef TERMINFO
1152     {(int)KS_CS,	"[%p1%dCS%p2%d]"},
1153 #  else
1154     {(int)KS_CS,	"[%dCS%d]"},
1155 #  endif
1156 #  ifdef TERMINFO
1157     {(int)KS_CSV,	"[%p1%dCSV%p2%d]"},
1158 #  else
1159     {(int)KS_CSV,	"[%dCSV%d]"},
1160 #  endif
1161 #  ifdef TERMINFO
1162     {(int)KS_CAB,	"[CAB%p1%d]"},
1163     {(int)KS_CAF,	"[CAF%p1%d]"},
1164     {(int)KS_CSB,	"[CSB%p1%d]"},
1165     {(int)KS_CSF,	"[CSF%p1%d]"},
1166 #  else
1167     {(int)KS_CAB,	"[CAB%d]"},
1168     {(int)KS_CAF,	"[CAF%d]"},
1169     {(int)KS_CSB,	"[CSB%d]"},
1170     {(int)KS_CSF,	"[CSF%d]"},
1171 #  endif
1172     {(int)KS_CAU,	"[CAU%d]"},
1173     {(int)KS_OP,	"[OP]"},
1174     {(int)KS_LE,	"[LE]"},
1175     {(int)KS_CL,	"[CL]"},
1176     {(int)KS_VI,	"[VI]"},
1177     {(int)KS_VE,	"[VE]"},
1178     {(int)KS_VS,	"[VS]"},
1179     {(int)KS_ME,	"[ME]"},
1180     {(int)KS_MR,	"[MR]"},
1181     {(int)KS_MB,	"[MB]"},
1182     {(int)KS_MD,	"[MD]"},
1183     {(int)KS_SE,	"[SE]"},
1184     {(int)KS_SO,	"[SO]"},
1185     {(int)KS_UE,	"[UE]"},
1186     {(int)KS_US,	"[US]"},
1187     {(int)KS_UCE,	"[UCE]"},
1188     {(int)KS_UCS,	"[UCS]"},
1189     {(int)KS_STE,	"[STE]"},
1190     {(int)KS_STS,	"[STS]"},
1191     {(int)KS_MS,	"[MS]"},
1192     {(int)KS_UT,	"[UT]"},
1193     {(int)KS_XN,	"[XN]"},
1194 #  ifdef TERMINFO
1195     {(int)KS_CM,	"[%p1%dCM%p2%d]"},
1196 #  else
1197     {(int)KS_CM,	"[%dCM%d]"},
1198 #  endif
1199     {(int)KS_SR,	"[SR]"},
1200 #  ifdef TERMINFO
1201     {(int)KS_CRI,	"[CRI%p1%d]"},
1202 #  else
1203     {(int)KS_CRI,	"[CRI%d]"},
1204 #  endif
1205     {(int)KS_VB,	"[VB]"},
1206     {(int)KS_KS,	"[KS]"},
1207     {(int)KS_KE,	"[KE]"},
1208     {(int)KS_TI,	"[TI]"},
1209     {(int)KS_TE,	"[TE]"},
1210     {(int)KS_CIS,	"[CIS]"},
1211     {(int)KS_CIE,	"[CIE]"},
1212     {(int)KS_CSC,	"[CSC]"},
1213     {(int)KS_CEC,	"[CEC]"},
1214     {(int)KS_TS,	"[TS]"},
1215     {(int)KS_FS,	"[FS]"},
1216 #  ifdef TERMINFO
1217     {(int)KS_CWS,	"[%p1%dCWS%p2%d]"},
1218     {(int)KS_CWP,	"[%p1%dCWP%p2%d]"},
1219 #  else
1220     {(int)KS_CWS,	"[%dCWS%d]"},
1221     {(int)KS_CWP,	"[%dCWP%d]"},
1222 #  endif
1223     {(int)KS_CRV,	"[CRV]"},
1224     {(int)KS_U7,	"[U7]"},
1225     {(int)KS_RFG,	"[RFG]"},
1226     {(int)KS_RBG,	"[RBG]"},
1227     {K_UP,		"[KU]"},
1228     {K_DOWN,		"[KD]"},
1229     {K_LEFT,		"[KL]"},
1230     {K_RIGHT,		"[KR]"},
1231     {K_XUP,		"[xKU]"},
1232     {K_XDOWN,		"[xKD]"},
1233     {K_XLEFT,		"[xKL]"},
1234     {K_XRIGHT,		"[xKR]"},
1235     {K_S_UP,		"[S-KU]"},
1236     {K_S_DOWN,		"[S-KD]"},
1237     {K_S_LEFT,		"[S-KL]"},
1238     {K_C_LEFT,		"[C-KL]"},
1239     {K_S_RIGHT,		"[S-KR]"},
1240     {K_C_RIGHT,		"[C-KR]"},
1241     {K_F1,		"[F1]"},
1242     {K_XF1,		"[xF1]"},
1243     {K_F2,		"[F2]"},
1244     {K_XF2,		"[xF2]"},
1245     {K_F3,		"[F3]"},
1246     {K_XF3,		"[xF3]"},
1247     {K_F4,		"[F4]"},
1248     {K_XF4,		"[xF4]"},
1249     {K_F5,		"[F5]"},
1250     {K_F6,		"[F6]"},
1251     {K_F7,		"[F7]"},
1252     {K_F8,		"[F8]"},
1253     {K_F9,		"[F9]"},
1254     {K_F10,		"[F10]"},
1255     {K_F11,		"[F11]"},
1256     {K_F12,		"[F12]"},
1257     {K_S_F1,		"[S-F1]"},
1258     {K_S_XF1,		"[S-xF1]"},
1259     {K_S_F2,		"[S-F2]"},
1260     {K_S_XF2,		"[S-xF2]"},
1261     {K_S_F3,		"[S-F3]"},
1262     {K_S_XF3,		"[S-xF3]"},
1263     {K_S_F4,		"[S-F4]"},
1264     {K_S_XF4,		"[S-xF4]"},
1265     {K_S_F5,		"[S-F5]"},
1266     {K_S_F6,		"[S-F6]"},
1267     {K_S_F7,		"[S-F7]"},
1268     {K_S_F8,		"[S-F8]"},
1269     {K_S_F9,		"[S-F9]"},
1270     {K_S_F10,		"[S-F10]"},
1271     {K_S_F11,		"[S-F11]"},
1272     {K_S_F12,		"[S-F12]"},
1273     {K_HELP,		"[HELP]"},
1274     {K_UNDO,		"[UNDO]"},
1275     {K_BS,		"[BS]"},
1276     {K_INS,		"[INS]"},
1277     {K_KINS,		"[KINS]"},
1278     {K_DEL,		"[DEL]"},
1279     {K_KDEL,		"[KDEL]"},
1280     {K_HOME,		"[HOME]"},
1281     {K_S_HOME,		"[C-HOME]"},
1282     {K_C_HOME,		"[C-HOME]"},
1283     {K_KHOME,		"[KHOME]"},
1284     {K_XHOME,		"[XHOME]"},
1285     {K_ZHOME,		"[ZHOME]"},
1286     {K_END,		"[END]"},
1287     {K_S_END,		"[C-END]"},
1288     {K_C_END,		"[C-END]"},
1289     {K_KEND,		"[KEND]"},
1290     {K_XEND,		"[XEND]"},
1291     {K_ZEND,		"[ZEND]"},
1292     {K_PAGEUP,		"[PAGEUP]"},
1293     {K_PAGEDOWN,	"[PAGEDOWN]"},
1294     {K_KPAGEUP,		"[KPAGEUP]"},
1295     {K_KPAGEDOWN,	"[KPAGEDOWN]"},
1296     {K_MOUSE,		"[MOUSE]"},
1297     {K_KPLUS,		"[KPLUS]"},
1298     {K_KMINUS,		"[KMINUS]"},
1299     {K_KDIVIDE,		"[KDIVIDE]"},
1300     {K_KMULTIPLY,	"[KMULTIPLY]"},
1301     {K_KENTER,		"[KENTER]"},
1302     {K_KPOINT,		"[KPOINT]"},
1303     {K_PS,		"[PASTE-START]"},
1304     {K_PE,		"[PASTE-END]"},
1305     {K_K0,		"[K0]"},
1306     {K_K1,		"[K1]"},
1307     {K_K2,		"[K2]"},
1308     {K_K3,		"[K3]"},
1309     {K_K4,		"[K4]"},
1310     {K_K5,		"[K5]"},
1311     {K_K6,		"[K6]"},
1312     {K_K7,		"[K7]"},
1313     {K_K8,		"[K8]"},
1314     {K_K9,		"[K9]"},
1315 # endif
1316 
1317 #endif // NO_BUILTIN_TCAPS
1318 
1319 /*
1320  * The most minimal terminal: only clear screen and cursor positioning
1321  * Always included.
1322  */
1323     {(int)KS_NAME,	"dumb"},
1324     {(int)KS_CL,	"\014"},
1325 #ifdef TERMINFO
1326     {(int)KS_CM,	IF_EB("\033[%i%p1%d;%p2%dH",
1327 						  ESC_STR "[%i%p1%d;%p2%dH")},
1328 #else
1329     {(int)KS_CM,	IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
1330 #endif
1331 
1332 /*
1333  * end marker
1334  */
1335     {(int)KS_NAME,	NULL}
1336 
1337 };	// end of builtin_termcaps
1338 
1339 #if defined(FEAT_TERMGUICOLORS) || defined(PROTO)
1340     static guicolor_T
1341 termgui_mch_get_color(char_u *name)
1342 {
1343     return gui_get_color_cmn(name);
1344 }
1345 
1346     guicolor_T
1347 termgui_get_color(char_u *name)
1348 {
1349     guicolor_T	t;
1350 
1351     if (*name == NUL)
1352 	return INVALCOLOR;
1353     t = termgui_mch_get_color(name);
1354 
1355     if (t == INVALCOLOR)
1356 	semsg(_(e_alloc_color), name);
1357     return t;
1358 }
1359 
1360     guicolor_T
1361 termgui_mch_get_rgb(guicolor_T color)
1362 {
1363     return color;
1364 }
1365 #endif
1366 
1367 /*
1368  * DEFAULT_TERM is used, when no terminal is specified with -T option or $TERM.
1369  */
1370 #ifdef AMIGA
1371 # define DEFAULT_TERM	(char_u *)"amiga"
1372 #endif
1373 
1374 #ifdef MSWIN
1375 # define DEFAULT_TERM	(char_u *)"win32"
1376 #endif
1377 
1378 #if defined(UNIX)
1379 # define DEFAULT_TERM	(char_u *)"ansi"
1380 #endif
1381 
1382 #ifdef VMS
1383 # define DEFAULT_TERM	(char_u *)"vt320"
1384 #endif
1385 
1386 #ifdef __HAIKU__
1387 # undef DEFAULT_TERM
1388 # define DEFAULT_TERM	(char_u *)"xterm"
1389 #endif
1390 
1391 #ifndef DEFAULT_TERM
1392 # define DEFAULT_TERM	(char_u *)"dumb"
1393 #endif
1394 
1395 /*
1396  * Term_strings contains currently used terminal output strings.
1397  * It is initialized with the default values by parse_builtin_tcap().
1398  * The values can be changed by setting the option with the same name.
1399  */
1400 char_u *(term_strings[(int)KS_LAST + 1]);
1401 
1402 static int	need_gather = FALSE;	    // need to fill termleader[]
1403 static char_u	termleader[256 + 1];	    // for check_termcode()
1404 #ifdef FEAT_TERMRESPONSE
1405 static int	check_for_codes = FALSE;    // check for key code response
1406 
1407 /*
1408  * Structure and table to store terminal features that can be detected by
1409  * querying the terminal.  Either by inspecting the termresponse or a more
1410  * specific request.  Besides this there are:
1411  * t_colors - number of colors supported
1412  */
1413 typedef struct {
1414     char    *tpr_name;
1415     int	    tpr_set_by_termresponse;
1416     int	    tpr_status;
1417 } termprop_T;
1418 
1419 // Values for tpr_status.
1420 #define TPR_UNKNOWN	    'u'
1421 #define TPR_YES		    'y'
1422 #define TPR_NO		    'n'
1423 #define TPR_MOUSE_XTERM     'x'	// use "xterm" for 'ttymouse'
1424 #define TPR_MOUSE_XTERM2    '2'	// use "xterm2" for 'ttymouse'
1425 #define TPR_MOUSE_SGR	    's'	// use "sgr" for 'ttymouse'
1426 
1427 // can request the cursor style without messing up the display
1428 #define TPR_CURSOR_STYLE	    0
1429 // can request the cursor blink mode without messing up the display
1430 #define TPR_CURSOR_BLINK	    1
1431 // can set the underline color with t_8u without resetting other colors
1432 #define TPR_UNDERLINE_RGB	    2
1433 // mouse support - TPR_MOUSE_XTERM, TPR_MOUSE_XTERM2 or TPR_MOUSE_SGR
1434 #define TPR_MOUSE		    3
1435 // table size
1436 #define TPR_COUNT		    4
1437 
1438 static termprop_T term_props[TPR_COUNT];
1439 
1440 /*
1441  * Initialize the term_props table.
1442  * When "all" is FALSE only set those that are detected from the version
1443  * response.
1444  */
1445     void
1446 init_term_props(int all)
1447 {
1448     int i;
1449 
1450     term_props[TPR_CURSOR_STYLE].tpr_name = "cursor_style";
1451     term_props[TPR_CURSOR_STYLE].tpr_set_by_termresponse = FALSE;
1452     term_props[TPR_CURSOR_BLINK].tpr_name = "cursor_blink_mode";
1453     term_props[TPR_CURSOR_BLINK].tpr_set_by_termresponse = FALSE;
1454     term_props[TPR_UNDERLINE_RGB].tpr_name = "underline_rgb";
1455     term_props[TPR_UNDERLINE_RGB].tpr_set_by_termresponse = TRUE;
1456     term_props[TPR_MOUSE].tpr_name = "mouse";
1457     term_props[TPR_MOUSE].tpr_set_by_termresponse = TRUE;
1458 
1459     for (i = 0; i < TPR_COUNT; ++i)
1460 	if (all || term_props[i].tpr_set_by_termresponse)
1461 	    term_props[i].tpr_status = TPR_UNKNOWN;
1462 }
1463 #endif
1464 
1465 #if defined(FEAT_EVAL) || defined(PROTO)
1466     void
1467 f_terminalprops(typval_T *argvars UNUSED, typval_T *rettv)
1468 {
1469 # ifdef FEAT_TERMRESPONSE
1470     int i;
1471 # endif
1472 
1473     if (rettv_dict_alloc(rettv) != OK)
1474 	return;
1475 # ifdef FEAT_TERMRESPONSE
1476     for (i = 0; i < TPR_COUNT; ++i)
1477     {
1478 	char_u	value[2];
1479 
1480 	value[0] = term_props[i].tpr_status;
1481 	value[1] = NUL;
1482 	dict_add_string(rettv->vval.v_dict, term_props[i].tpr_name, value);
1483     }
1484 # endif
1485 }
1486 #endif
1487 
1488     static struct builtin_term *
1489 find_builtin_term(char_u *term)
1490 {
1491     struct builtin_term *p;
1492 
1493     p = builtin_termcaps;
1494     while (p->bt_string != NULL)
1495     {
1496 	if (p->bt_entry == (int)KS_NAME)
1497 	{
1498 #ifdef UNIX
1499 	    if (STRCMP(p->bt_string, "iris-ansi") == 0 && vim_is_iris(term))
1500 		return p;
1501 	    else if (STRCMP(p->bt_string, "xterm") == 0 && vim_is_xterm(term))
1502 		return p;
1503 	    else
1504 #endif
1505 #ifdef VMS
1506 		if (STRCMP(p->bt_string, "vt320") == 0 && vim_is_vt300(term))
1507 		    return p;
1508 		else
1509 #endif
1510 		  if (STRCMP(term, p->bt_string) == 0)
1511 		    return p;
1512 	}
1513 	++p;
1514     }
1515     return p;
1516 }
1517 
1518 /*
1519  * Parsing of the builtin termcap entries.
1520  * Caller should check if 'name' is a valid builtin term.
1521  * The terminal's name is not set, as this is already done in termcapinit().
1522  */
1523     static void
1524 parse_builtin_tcap(char_u *term)
1525 {
1526     struct builtin_term	    *p;
1527     char_u		    name[2];
1528     int			    term_8bit;
1529 
1530     p = find_builtin_term(term);
1531     term_8bit = term_is_8bit(term);
1532 
1533     // Do not parse if builtin term not found
1534     if (p->bt_string == NULL)
1535 	return;
1536 
1537     for (++p; p->bt_entry != (int)KS_NAME && p->bt_entry != BT_EXTRA_KEYS; ++p)
1538     {
1539 	if ((int)p->bt_entry >= 0)	// KS_xx entry
1540 	{
1541 	    // Only set the value if it wasn't set yet.
1542 	    if (term_strings[p->bt_entry] == NULL
1543 				 || term_strings[p->bt_entry] == empty_option)
1544 	    {
1545 #ifdef FEAT_EVAL
1546 		int opt_idx = -1;
1547 #endif
1548 		// 8bit terminal: use CSI instead of <Esc>[
1549 		if (term_8bit && term_7to8bit((char_u *)p->bt_string) != 0)
1550 		{
1551 		    char_u  *s, *t;
1552 
1553 		    s = vim_strsave((char_u *)p->bt_string);
1554 		    if (s != NULL)
1555 		    {
1556 			for (t = s; *t; ++t)
1557 			    if (term_7to8bit(t))
1558 			    {
1559 				*t = term_7to8bit(t);
1560 				STRMOVE(t + 1, t + 2);
1561 			    }
1562 			term_strings[p->bt_entry] = s;
1563 #ifdef FEAT_EVAL
1564 			opt_idx =
1565 #endif
1566 				  set_term_option_alloced(
1567 						   &term_strings[p->bt_entry]);
1568 		    }
1569 		}
1570 		else
1571 		{
1572 		    term_strings[p->bt_entry] = (char_u *)p->bt_string;
1573 #ifdef FEAT_EVAL
1574 		    opt_idx = get_term_opt_idx(&term_strings[p->bt_entry]);
1575 #endif
1576 		}
1577 #ifdef FEAT_EVAL
1578 		set_term_option_sctx_idx(NULL, opt_idx);
1579 #endif
1580 	    }
1581 	}
1582 	else
1583 	{
1584 	    name[0] = KEY2TERMCAP0((int)p->bt_entry);
1585 	    name[1] = KEY2TERMCAP1((int)p->bt_entry);
1586 	    if (find_termcode(name) == NULL)
1587 		add_termcode(name, (char_u *)p->bt_string, term_8bit);
1588 	}
1589     }
1590 }
1591 
1592 /*
1593  * Set number of colors.
1594  * Store it as a number in t_colors.
1595  * Store it as a string in T_CCO (using nr_colors[]).
1596  */
1597     void
1598 set_color_count(int nr)
1599 {
1600     char_u	nr_colors[20];		// string for number of colors
1601 
1602     t_colors = nr;
1603     if (t_colors > 1)
1604 	sprintf((char *)nr_colors, "%d", t_colors);
1605     else
1606 	*nr_colors = NUL;
1607     set_string_option_direct((char_u *)"t_Co", -1, nr_colors, OPT_FREE, 0);
1608 }
1609 
1610 #if defined(FEAT_TERMRESPONSE)
1611 /*
1612  * Set the color count to "val" and redraw if it changed.
1613  */
1614     static void
1615 may_adjust_color_count(int val)
1616 {
1617     if (val != t_colors)
1618     {
1619 	// Nr of colors changed, initialize highlighting and
1620 	// redraw everything.  This causes a redraw, which usually
1621 	// clears the message.  Try keeping the message if it
1622 	// might work.
1623 	set_keep_msg_from_hist();
1624 	set_color_count(val);
1625 	init_highlight(TRUE, FALSE);
1626 # ifdef DEBUG_TERMRESPONSE
1627 	{
1628 	    int r = redraw_asap(CLEAR);
1629 
1630 	    log_tr("Received t_Co, redraw_asap(): %d", r);
1631 	}
1632 # else
1633 	redraw_asap(CLEAR);
1634 # endif
1635     }
1636 }
1637 #endif
1638 
1639 #ifdef HAVE_TGETENT
1640 static char *(key_names[]) =
1641 {
1642 # ifdef FEAT_TERMRESPONSE
1643     // Do this one first, it may cause a screen redraw.
1644     "Co",
1645 # endif
1646     "ku", "kd", "kr", "kl",
1647     "#2", "#4", "%i", "*7",
1648     "k1", "k2", "k3", "k4", "k5", "k6",
1649     "k7", "k8", "k9", "k;", "F1", "F2",
1650     "%1", "&8", "kb", "kI", "kD", "kh",
1651     "@7", "kP", "kN", "K1", "K3", "K4", "K5", "kB",
1652     NULL
1653 };
1654 #endif
1655 
1656 #ifdef HAVE_TGETENT
1657     static void
1658 get_term_entries(int *height, int *width)
1659 {
1660     static struct {
1661 		    enum SpecialKey dest; // index in term_strings[]
1662 		    char *name;		  // termcap name for string
1663 		  } string_names[] =
1664 		    {	{KS_CE, "ce"}, {KS_AL, "al"}, {KS_CAL,"AL"},
1665 			{KS_DL, "dl"}, {KS_CDL,"DL"}, {KS_CS, "cs"},
1666 			{KS_CL, "cl"}, {KS_CD, "cd"},
1667 			{KS_VI, "vi"}, {KS_VE, "ve"}, {KS_MB, "mb"},
1668 			{KS_ME, "me"}, {KS_MR, "mr"},
1669 			{KS_MD, "md"}, {KS_SE, "se"}, {KS_SO, "so"},
1670 			{KS_CZH,"ZH"}, {KS_CZR,"ZR"}, {KS_UE, "ue"},
1671 			{KS_US, "us"}, {KS_UCE, "Ce"}, {KS_UCS, "Cs"},
1672 			{KS_STE,"Te"}, {KS_STS,"Ts"},
1673 			{KS_CM, "cm"}, {KS_SR, "sr"},
1674 			{KS_CRI,"RI"}, {KS_VB, "vb"}, {KS_KS, "ks"},
1675 			{KS_KE, "ke"}, {KS_TI, "ti"}, {KS_TE, "te"},
1676 			{KS_CTI, "TI"}, {KS_CTE, "TE"},
1677 			{KS_BC, "bc"}, {KS_CSB,"Sb"}, {KS_CSF,"Sf"},
1678 			{KS_CAB,"AB"}, {KS_CAF,"AF"}, {KS_CAU,"AU"},
1679 			{KS_LE, "le"},
1680 			{KS_ND, "nd"}, {KS_OP, "op"}, {KS_CRV, "RV"},
1681 			{KS_VS, "vs"}, {KS_CVS, "VS"},
1682 			{KS_CIS, "IS"}, {KS_CIE, "IE"},
1683 			{KS_CSC, "SC"}, {KS_CEC, "EC"},
1684 			{KS_TS, "ts"}, {KS_FS, "fs"},
1685 			{KS_CWP, "WP"}, {KS_CWS, "WS"},
1686 			{KS_CSI, "SI"}, {KS_CEI, "EI"},
1687 			{KS_U7, "u7"}, {KS_RFG, "RF"}, {KS_RBG, "RB"},
1688 			{KS_8F, "8f"}, {KS_8B, "8b"}, {KS_8U, "8u"},
1689 			{KS_CBE, "BE"}, {KS_CBD, "BD"},
1690 			{KS_CPS, "PS"}, {KS_CPE, "PE"},
1691 			{KS_CST, "ST"}, {KS_CRT, "RT"},
1692 			{KS_SSI, "Si"}, {KS_SRI, "Ri"},
1693 			{(enum SpecialKey)0, NULL}
1694 		    };
1695     int		    i;
1696     char_u	    *p;
1697     static char_u   tstrbuf[TBUFSZ];
1698     char_u	    *tp = tstrbuf;
1699 
1700     /*
1701      * get output strings
1702      */
1703     for (i = 0; string_names[i].name != NULL; ++i)
1704     {
1705 	if (TERM_STR(string_names[i].dest) == NULL
1706 			     || TERM_STR(string_names[i].dest) == empty_option)
1707 	{
1708 	    TERM_STR(string_names[i].dest) = TGETSTR(string_names[i].name, &tp);
1709 #ifdef FEAT_EVAL
1710 	    set_term_option_sctx_idx(string_names[i].name, -1);
1711 #endif
1712 	}
1713     }
1714 
1715     // tgetflag() returns 1 if the flag is present, 0 if not and
1716     // possibly -1 if the flag doesn't exist.
1717     if ((T_MS == NULL || T_MS == empty_option) && tgetflag("ms") > 0)
1718 	T_MS = (char_u *)"y";
1719     if ((T_XS == NULL || T_XS == empty_option) && tgetflag("xs") > 0)
1720 	T_XS = (char_u *)"y";
1721     if ((T_XN == NULL || T_XN == empty_option) && tgetflag("xn") > 0)
1722 	T_XN = (char_u *)"y";
1723     if ((T_DB == NULL || T_DB == empty_option) && tgetflag("db") > 0)
1724 	T_DB = (char_u *)"y";
1725     if ((T_DA == NULL || T_DA == empty_option) && tgetflag("da") > 0)
1726 	T_DA = (char_u *)"y";
1727     if ((T_UT == NULL || T_UT == empty_option) && tgetflag("ut") > 0)
1728 	T_UT = (char_u *)"y";
1729 
1730     /*
1731      * get key codes
1732      */
1733     for (i = 0; key_names[i] != NULL; ++i)
1734 	if (find_termcode((char_u *)key_names[i]) == NULL)
1735 	{
1736 	    p = TGETSTR(key_names[i], &tp);
1737 	    // if cursor-left == backspace, ignore it (televideo 925)
1738 	    if (p != NULL
1739 		    && (*p != Ctrl_H
1740 			|| key_names[i][0] != 'k'
1741 			|| key_names[i][1] != 'l'))
1742 		add_termcode((char_u *)key_names[i], p, FALSE);
1743 	}
1744 
1745     if (*height == 0)
1746 	*height = tgetnum("li");
1747     if (*width == 0)
1748 	*width = tgetnum("co");
1749 
1750     /*
1751      * Get number of colors (if not done already).
1752      */
1753     if (TERM_STR(KS_CCO) == NULL || TERM_STR(KS_CCO) == empty_option)
1754     {
1755 	set_color_count(tgetnum("Co"));
1756 #ifdef FEAT_EVAL
1757 	set_term_option_sctx_idx("Co", -1);
1758 #endif
1759     }
1760 
1761 # ifndef hpux
1762     BC = (char *)TGETSTR("bc", &tp);
1763     UP = (char *)TGETSTR("up", &tp);
1764     p = TGETSTR("pc", &tp);
1765     if (p)
1766 	PC = *p;
1767 # endif
1768 }
1769 #endif
1770 
1771     static void
1772 report_term_error(char *error_msg, char_u *term)
1773 {
1774     struct builtin_term *termp;
1775     int			i;
1776 
1777     mch_errmsg("\r\n");
1778     if (error_msg != NULL)
1779     {
1780 	mch_errmsg(error_msg);
1781 	mch_errmsg("\r\n");
1782     }
1783     mch_errmsg("'");
1784     mch_errmsg((char *)term);
1785     mch_errmsg(_("' not known. Available builtin terminals are:"));
1786     mch_errmsg("\r\n");
1787     for (termp = &(builtin_termcaps[0]); termp->bt_string != NULL; ++termp)
1788     {
1789 	if (termp->bt_entry == (int)KS_NAME)
1790 	{
1791 #ifdef HAVE_TGETENT
1792 	    mch_errmsg("    builtin_");
1793 #else
1794 	    mch_errmsg("    ");
1795 #endif
1796 	    mch_errmsg(termp->bt_string);
1797 	    mch_errmsg("\r\n");
1798 	}
1799     }
1800     // Output extra 'cmdheight' line breaks to avoid that the following error
1801     // message overwrites the last terminal name.
1802     for (i = 1; i < p_ch; ++i)
1803 	mch_errmsg("\r\n");
1804 }
1805 
1806     static void
1807 report_default_term(char_u *term)
1808 {
1809     mch_errmsg(_("defaulting to '"));
1810     mch_errmsg((char *)term);
1811     mch_errmsg("'\r\n");
1812     if (emsg_silent == 0 && !in_assert_fails)
1813     {
1814 	screen_start();	// don't know where cursor is now
1815 	out_flush();
1816 	if (!is_not_a_term())
1817 	    ui_delay(2007L, TRUE);
1818     }
1819 }
1820 
1821 /*
1822  * Set terminal options for terminal "term".
1823  * Return OK if terminal 'term' was found in a termcap, FAIL otherwise.
1824  *
1825  * While doing this, until ttest(), some options may be NULL, be careful.
1826  */
1827     int
1828 set_termname(char_u *term)
1829 {
1830     struct builtin_term *termp;
1831 #ifdef HAVE_TGETENT
1832     int		builtin_first = p_tbi;
1833     int		try;
1834     int		termcap_cleared = FALSE;
1835 #endif
1836     int		width = 0, height = 0;
1837     char	*error_msg = NULL;
1838     char_u	*bs_p, *del_p;
1839 
1840     // In silect mode (ex -s) we don't use the 'term' option.
1841     if (silent_mode)
1842 	return OK;
1843 
1844     detected_8bit = FALSE;		// reset 8-bit detection
1845 
1846     if (term_is_builtin(term))
1847     {
1848 	term += 8;
1849 #ifdef HAVE_TGETENT
1850 	builtin_first = 1;
1851 #endif
1852     }
1853 
1854 /*
1855  * If HAVE_TGETENT is not defined, only the builtin termcap is used, otherwise:
1856  *   If builtin_first is TRUE:
1857  *     0. try builtin termcap
1858  *     1. try external termcap
1859  *     2. if both fail default to a builtin terminal
1860  *   If builtin_first is FALSE:
1861  *     1. try external termcap
1862  *     2. try builtin termcap, if both fail default to a builtin terminal
1863  */
1864 #ifdef HAVE_TGETENT
1865     for (try = builtin_first ? 0 : 1; try < 3; ++try)
1866     {
1867 	/*
1868 	 * Use external termcap
1869 	 */
1870 	if (try == 1)
1871 	{
1872 	    char_u	    tbuf[TBUFSZ];
1873 
1874 	    /*
1875 	     * If the external termcap does not have a matching entry, try the
1876 	     * builtin ones.
1877 	     */
1878 	    if ((error_msg = tgetent_error(tbuf, term)) == NULL)
1879 	    {
1880 		if (!termcap_cleared)
1881 		{
1882 		    clear_termoptions();	// clear old options
1883 		    termcap_cleared = TRUE;
1884 		}
1885 
1886 		get_term_entries(&height, &width);
1887 	    }
1888 	}
1889 	else	    // try == 0 || try == 2
1890 #endif // HAVE_TGETENT
1891 	/*
1892 	 * Use builtin termcap
1893 	 */
1894 	{
1895 #ifdef HAVE_TGETENT
1896 	    /*
1897 	     * If builtin termcap was already used, there is no need to search
1898 	     * for the builtin termcap again, quit now.
1899 	     */
1900 	    if (try == 2 && builtin_first && termcap_cleared)
1901 		break;
1902 #endif
1903 	    /*
1904 	     * search for 'term' in builtin_termcaps[]
1905 	     */
1906 	    termp = find_builtin_term(term);
1907 	    if (termp->bt_string == NULL)	// did not find it
1908 	    {
1909 #ifdef HAVE_TGETENT
1910 		/*
1911 		 * If try == 0, first try the external termcap. If that is not
1912 		 * found we'll get back here with try == 2.
1913 		 * If termcap_cleared is set we used the external termcap,
1914 		 * don't complain about not finding the term in the builtin
1915 		 * termcap.
1916 		 */
1917 		if (try == 0)			// try external one
1918 		    continue;
1919 		if (termcap_cleared)		// found in external termcap
1920 		    break;
1921 #endif
1922 		report_term_error(error_msg, term);
1923 
1924 		// when user typed :set term=xxx, quit here
1925 		if (starting != NO_SCREEN)
1926 		{
1927 		    screen_start();	// don't know where cursor is now
1928 		    wait_return(TRUE);
1929 		    return FAIL;
1930 		}
1931 		term = DEFAULT_TERM;
1932 		report_default_term(term);
1933 		set_string_option_direct((char_u *)"term", -1, term,
1934 								 OPT_FREE, 0);
1935 		display_errors();
1936 	    }
1937 	    out_flush();
1938 #ifdef HAVE_TGETENT
1939 	    if (!termcap_cleared)
1940 	    {
1941 #endif
1942 		clear_termoptions();	    // clear old options
1943 #ifdef HAVE_TGETENT
1944 		termcap_cleared = TRUE;
1945 	    }
1946 #endif
1947 	    parse_builtin_tcap(term);
1948 #ifdef FEAT_GUI
1949 	    if (term_is_gui(term))
1950 	    {
1951 		out_flush();
1952 		gui_init();
1953 		// If starting the GUI failed, don't do any of the other
1954 		// things for this terminal
1955 		if (!gui.in_use)
1956 		    return FAIL;
1957 #ifdef HAVE_TGETENT
1958 		break;		// don't try using external termcap
1959 #endif
1960 	    }
1961 #endif // FEAT_GUI
1962 	}
1963 #ifdef HAVE_TGETENT
1964     }
1965 #endif
1966 
1967 /*
1968  * special: There is no info in the termcap about whether the cursor
1969  * positioning is relative to the start of the screen or to the start of the
1970  * scrolling region.  We just guess here. Only msdos pcterm is known to do it
1971  * relative.
1972  */
1973     if (STRCMP(term, "pcterm") == 0)
1974 	T_CCS = (char_u *)"yes";
1975     else
1976 	T_CCS = empty_option;
1977 
1978 #ifdef UNIX
1979 /*
1980  * Any "stty" settings override the default for t_kb from the termcap.
1981  * This is in os_unix.c, because it depends a lot on the version of unix that
1982  * is being used.
1983  * Don't do this when the GUI is active, it uses "t_kb" and "t_kD" directly.
1984  */
1985 # ifdef FEAT_GUI
1986     if (!gui.in_use)
1987 # endif
1988 	get_stty();
1989 #endif
1990 
1991 /*
1992  * If the termcap has no entry for 'bs' and/or 'del' and the ioctl() also
1993  * didn't work, use the default CTRL-H
1994  * The default for t_kD is DEL, unless t_kb is DEL.
1995  * The vim_strsave'd strings are probably lost forever, well it's only two
1996  * bytes.  Don't do this when the GUI is active, it uses "t_kb" and "t_kD"
1997  * directly.
1998  */
1999 #ifdef FEAT_GUI
2000     if (!gui.in_use)
2001 #endif
2002     {
2003 	bs_p = find_termcode((char_u *)"kb");
2004 	del_p = find_termcode((char_u *)"kD");
2005 	if (bs_p == NULL || *bs_p == NUL)
2006 	    add_termcode((char_u *)"kb", (bs_p = (char_u *)CTRL_H_STR), FALSE);
2007 	if ((del_p == NULL || *del_p == NUL) &&
2008 					    (bs_p == NULL || *bs_p != DEL))
2009 	    add_termcode((char_u *)"kD", (char_u *)DEL_STR, FALSE);
2010     }
2011 
2012 #if defined(UNIX) || defined(VMS)
2013     term_is_xterm = vim_is_xterm(term);
2014 #endif
2015 #ifdef FEAT_TERMRESPONSE
2016     // Reset terminal properties that are set based on the termresponse, which
2017     // will be sent out soon.
2018     init_term_props(FALSE);
2019 #endif
2020 
2021 #if defined(UNIX) || defined(VMS)
2022     /*
2023      * For Unix, set the 'ttymouse' option to the type of mouse to be used.
2024      * The termcode for the mouse is added as a side effect in option.c.
2025      */
2026     {
2027 	char_u	*p = (char_u *)"";
2028 
2029 # ifdef FEAT_MOUSE_XTERM
2030 	if (use_xterm_like_mouse(term))
2031 	{
2032 	    if (use_xterm_mouse())
2033 		p = NULL;	// keep existing value, might be "xterm2"
2034 	    else
2035 		p = (char_u *)"xterm";
2036 	}
2037 # endif
2038 	if (p != NULL)
2039 	{
2040 	    set_option_value((char_u *)"ttym", 0L, p, 0);
2041 	    // Reset the WAS_SET flag, 'ttymouse' can be set to "sgr" or
2042 	    // "xterm2" in check_termcode().
2043 	    reset_option_was_set((char_u *)"ttym");
2044 	}
2045 	if (p == NULL
2046 #  ifdef FEAT_GUI
2047 		|| gui.in_use
2048 #  endif
2049 		)
2050 	    check_mouse_termcode();	// set mouse termcode anyway
2051     }
2052 #else
2053     set_mouse_termcode(KS_MOUSE, (char_u *)"\233M");
2054 #endif
2055 
2056 #ifdef FEAT_MOUSE_XTERM
2057     // focus reporting is supported by xterm compatible terminals and tmux.
2058     if (use_xterm_like_mouse(term))
2059     {
2060 	char_u name[3];
2061 
2062 	// handle focus in event
2063 	name[0] = KS_EXTRA;
2064 	name[1] = KE_FOCUSGAINED;
2065 	name[2] = NUL;
2066 	add_termcode(name, (char_u *)"\033[I", FALSE);
2067 
2068 	// handle focus out event
2069 	name[1] = KE_FOCUSLOST;
2070 	add_termcode(name, (char_u *)"\033[O", FALSE);
2071 
2072 	focus_mode = TRUE;
2073 	focus_state = TRUE;
2074 	need_gather = TRUE;
2075     }
2076 #endif
2077 
2078 #ifdef USE_TERM_CONSOLE
2079     // DEFAULT_TERM indicates that it is the machine console.
2080     if (STRCMP(term, DEFAULT_TERM) != 0)
2081 	term_console = FALSE;
2082     else
2083     {
2084 	term_console = TRUE;
2085 # ifdef AMIGA
2086 	win_resize_on();	// enable window resizing reports
2087 # endif
2088     }
2089 #endif
2090 
2091 #if defined(UNIX) || defined(VMS)
2092     /*
2093      * 'ttyfast' is default on for xterm, iris-ansi and a few others.
2094      */
2095     if (vim_is_fastterm(term))
2096 	p_tf = TRUE;
2097 #endif
2098 #ifdef USE_TERM_CONSOLE
2099     /*
2100      * 'ttyfast' is default on consoles
2101      */
2102     if (term_console)
2103 	p_tf = TRUE;
2104 #endif
2105 
2106     ttest(TRUE);	// make sure we have a valid set of terminal codes
2107 
2108     full_screen = TRUE;		// we can use termcap codes from now on
2109     set_term_defaults();	// use current values as defaults
2110 #ifdef FEAT_TERMRESPONSE
2111     LOG_TR(("setting crv_status to STATUS_GET"));
2112     crv_status.tr_progress = STATUS_GET;	// Get terminal version later
2113 #endif
2114 
2115     /*
2116      * Initialize the terminal with the appropriate termcap codes.
2117      * Set the mouse and window title if possible.
2118      * Don't do this when starting, need to parse the .vimrc first, because it
2119      * may redefine t_TI etc.
2120      */
2121     if (starting != NO_SCREEN)
2122     {
2123 	starttermcap();		// may change terminal mode
2124 	setmouse();		// may start using the mouse
2125 #ifdef FEAT_TITLE
2126 	maketitle();		// may display window title
2127 #endif
2128     }
2129 
2130 	// display initial screen after ttest() checking. jw.
2131     if (width <= 0 || height <= 0)
2132     {
2133 	// termcap failed to report size
2134 	// set defaults, in case ui_get_shellsize() also fails
2135 	width = 80;
2136 #if defined(MSWIN)
2137 	height = 25;	    // console is often 25 lines
2138 #else
2139 	height = 24;	    // most terminals are 24 lines
2140 #endif
2141     }
2142     set_shellsize(width, height, FALSE);	// may change Rows
2143     if (starting != NO_SCREEN)
2144     {
2145 	if (scroll_region)
2146 	    scroll_region_reset();		// In case Rows changed
2147 	check_map_keycodes();	// check mappings for terminal codes used
2148 
2149 	{
2150 	    buf_T	*buf;
2151 	    aco_save_T	aco;
2152 
2153 	    /*
2154 	     * Execute the TermChanged autocommands for each buffer that is
2155 	     * loaded.
2156 	     */
2157 	    FOR_ALL_BUFFERS(buf)
2158 	    {
2159 		if (curbuf->b_ml.ml_mfp != NULL)
2160 		{
2161 		    aucmd_prepbuf(&aco, buf);
2162 		    apply_autocmds(EVENT_TERMCHANGED, NULL, NULL, FALSE,
2163 								      curbuf);
2164 		    // restore curwin/curbuf and a few other things
2165 		    aucmd_restbuf(&aco);
2166 		}
2167 	    }
2168 	}
2169     }
2170 
2171 #ifdef FEAT_TERMRESPONSE
2172     may_req_termresponse();
2173 #endif
2174 
2175     return OK;
2176 }
2177 
2178 #ifdef HAVE_TGETENT
2179 /*
2180  * Call tgetent()
2181  * Return error message if it fails, NULL if it's OK.
2182  */
2183     static char *
2184 tgetent_error(char_u *tbuf, char_u *term)
2185 {
2186     int	    i;
2187 
2188     // Note: Valgrind may report a leak here, because the library keeps one
2189     // buffer around that we can't ever free.
2190     i = TGETENT(tbuf, term);
2191     if (i < 0		    // -1 is always an error
2192 # ifdef TGETENT_ZERO_ERR
2193 	    || i == 0	    // sometimes zero is also an error
2194 # endif
2195        )
2196     {
2197 	// On FreeBSD tputs() gets a SEGV after a tgetent() which fails.  Call
2198 	// tgetent() with the always existing "dumb" entry to avoid a crash or
2199 	// hang.
2200 	(void)TGETENT(tbuf, "dumb");
2201 
2202 	if (i < 0)
2203 # ifdef TGETENT_ZERO_ERR
2204 	    return _("E557: Cannot open termcap file");
2205 	if (i == 0)
2206 # endif
2207 #ifdef TERMINFO
2208 	    return _("E558: Terminal entry not found in terminfo");
2209 #else
2210 	    return _("E559: Terminal entry not found in termcap");
2211 #endif
2212     }
2213     return NULL;
2214 }
2215 
2216 /*
2217  * Some versions of tgetstr() have been reported to return -1 instead of NULL.
2218  * Fix that here.
2219  */
2220     static char_u *
2221 vim_tgetstr(char *s, char_u **pp)
2222 {
2223     char	*p;
2224 
2225     p = tgetstr(s, (char **)pp);
2226     if (p == (char *)-1)
2227 	p = NULL;
2228     return (char_u *)p;
2229 }
2230 #endif // HAVE_TGETENT
2231 
2232 #if defined(HAVE_TGETENT) && (defined(UNIX) || defined(VMS) || defined(MACOS_X))
2233 /*
2234  * Get Columns and Rows from the termcap. Used after a window signal if the
2235  * ioctl() fails. It doesn't make sense to call tgetent each time if the "co"
2236  * and "li" entries never change. But on some systems this works.
2237  * Errors while getting the entries are ignored.
2238  */
2239     void
2240 getlinecol(
2241     long	*cp,	// pointer to columns
2242     long	*rp)	// pointer to rows
2243 {
2244     char_u	tbuf[TBUFSZ];
2245 
2246     if (T_NAME != NULL && *T_NAME != NUL && tgetent_error(tbuf, T_NAME) == NULL)
2247     {
2248 	if (*cp == 0)
2249 	    *cp = tgetnum("co");
2250 	if (*rp == 0)
2251 	    *rp = tgetnum("li");
2252     }
2253 }
2254 #endif // defined(HAVE_TGETENT) && defined(UNIX)
2255 
2256 /*
2257  * Get a string entry from the termcap and add it to the list of termcodes.
2258  * Used for <t_xx> special keys.
2259  * Give an error message for failure when not sourcing.
2260  * If force given, replace an existing entry.
2261  * Return FAIL if the entry was not found, OK if the entry was added.
2262  */
2263     int
2264 add_termcap_entry(char_u *name, int force)
2265 {
2266     char_u  *term;
2267     int	    key;
2268     struct builtin_term *termp;
2269 #ifdef HAVE_TGETENT
2270     char_u  *string;
2271     int	    i;
2272     int	    builtin_first;
2273     char_u  tbuf[TBUFSZ];
2274     char_u  tstrbuf[TBUFSZ];
2275     char_u  *tp = tstrbuf;
2276     char    *error_msg = NULL;
2277 #endif
2278 
2279 /*
2280  * If the GUI is running or will start in a moment, we only support the keys
2281  * that the GUI can produce.
2282  */
2283 #ifdef FEAT_GUI
2284     if (gui.in_use || gui.starting)
2285 	return gui_mch_haskey(name);
2286 #endif
2287 
2288     if (!force && find_termcode(name) != NULL)	    // it's already there
2289 	return OK;
2290 
2291     term = T_NAME;
2292     if (term == NULL || *term == NUL)	    // 'term' not defined yet
2293 	return FAIL;
2294 
2295     if (term_is_builtin(term))		    // name starts with "builtin_"
2296     {
2297 	term += 8;
2298 #ifdef HAVE_TGETENT
2299 	builtin_first = TRUE;
2300 #endif
2301     }
2302 #ifdef HAVE_TGETENT
2303     else
2304 	builtin_first = p_tbi;
2305 #endif
2306 
2307 #ifdef HAVE_TGETENT
2308 /*
2309  * We can get the entry from the builtin termcap and from the external one.
2310  * If 'ttybuiltin' is on or the terminal name starts with "builtin_", try
2311  * builtin termcap first.
2312  * If 'ttybuiltin' is off, try external termcap first.
2313  */
2314     for (i = 0; i < 2; ++i)
2315     {
2316 	if ((!builtin_first) == i)
2317 #endif
2318 	/*
2319 	 * Search in builtin termcap
2320 	 */
2321 	{
2322 	    termp = find_builtin_term(term);
2323 	    if (termp->bt_string != NULL)	// found it
2324 	    {
2325 		key = TERMCAP2KEY(name[0], name[1]);
2326 		++termp;
2327 		while (termp->bt_entry != (int)KS_NAME)
2328 		{
2329 		    if ((int)termp->bt_entry == key)
2330 		    {
2331 			add_termcode(name, (char_u *)termp->bt_string,
2332 							  term_is_8bit(term));
2333 			return OK;
2334 		    }
2335 		    ++termp;
2336 		}
2337 	    }
2338 	}
2339 #ifdef HAVE_TGETENT
2340 	else
2341 	/*
2342 	 * Search in external termcap
2343 	 */
2344 	{
2345 	    error_msg = tgetent_error(tbuf, term);
2346 	    if (error_msg == NULL)
2347 	    {
2348 		string = TGETSTR((char *)name, &tp);
2349 		if (string != NULL && *string != NUL)
2350 		{
2351 		    add_termcode(name, string, FALSE);
2352 		    return OK;
2353 		}
2354 	    }
2355 	}
2356     }
2357 #endif
2358 
2359     if (SOURCING_NAME == NULL)
2360     {
2361 #ifdef HAVE_TGETENT
2362 	if (error_msg != NULL)
2363 	    emsg(error_msg);
2364 	else
2365 #endif
2366 	    semsg(_("E436: No \"%s\" entry in termcap"), name);
2367     }
2368     return FAIL;
2369 }
2370 
2371     static int
2372 term_is_builtin(char_u *name)
2373 {
2374     return (STRNCMP(name, "builtin_", (size_t)8) == 0);
2375 }
2376 
2377 /*
2378  * Return TRUE if terminal "name" uses CSI instead of <Esc>[.
2379  * Assume that the terminal is using 8-bit controls when the name contains
2380  * "8bit", like in "xterm-8bit".
2381  */
2382     int
2383 term_is_8bit(char_u *name)
2384 {
2385     return (detected_8bit || strstr((char *)name, "8bit") != NULL);
2386 }
2387 
2388 /*
2389  * Translate terminal control chars from 7-bit to 8-bit:
2390  * <Esc>[ -> CSI  <M_C_[>
2391  * <Esc>] -> OSC  <M-C-]>
2392  * <Esc>O -> <M-C-O>
2393  */
2394     static int
2395 term_7to8bit(char_u *p)
2396 {
2397     if (*p == ESC)
2398     {
2399 	if (p[1] == '[')
2400 	    return CSI;
2401 	if (p[1] == ']')
2402 	    return OSC;
2403 	if (p[1] == 'O')
2404 	    return 0x8f;
2405     }
2406     return 0;
2407 }
2408 
2409 #if defined(FEAT_GUI) || defined(PROTO)
2410     int
2411 term_is_gui(char_u *name)
2412 {
2413     return (STRCMP(name, "builtin_gui") == 0 || STRCMP(name, "gui") == 0);
2414 }
2415 #endif
2416 
2417 #if !defined(HAVE_TGETENT) || defined(AMIGA) || defined(PROTO)
2418 
2419     char_u *
2420 tltoa(unsigned long i)
2421 {
2422     static char_u buf[16];
2423     char_u	*p;
2424 
2425     p = buf + 15;
2426     *p = '\0';
2427     do
2428     {
2429 	--p;
2430 	*p = (char_u) (i % 10 + '0');
2431 	i /= 10;
2432     }
2433     while (i > 0 && p > buf);
2434     return p;
2435 }
2436 #endif
2437 
2438 #ifndef HAVE_TGETENT
2439 
2440 /*
2441  * minimal tgoto() implementation.
2442  * no padding and we only parse for %i %d and %+char
2443  */
2444     static char *
2445 tgoto(char *cm, int x, int y)
2446 {
2447     static char buf[30];
2448     char *p, *s, *e;
2449 
2450     if (!cm)
2451 	return "OOPS";
2452     e = buf + 29;
2453     for (s = buf; s < e && *cm; cm++)
2454     {
2455 	if (*cm != '%')
2456 	{
2457 	    *s++ = *cm;
2458 	    continue;
2459 	}
2460 	switch (*++cm)
2461 	{
2462 	case 'd':
2463 	    p = (char *)tltoa((unsigned long)y);
2464 	    y = x;
2465 	    while (*p)
2466 		*s++ = *p++;
2467 	    break;
2468 	case 'i':
2469 	    x++;
2470 	    y++;
2471 	    break;
2472 	case '+':
2473 	    *s++ = (char)(*++cm + y);
2474 	    y = x;
2475 	    break;
2476 	case '%':
2477 	    *s++ = *cm;
2478 	    break;
2479 	default:
2480 	    return "OOPS";
2481 	}
2482     }
2483     *s = '\0';
2484     return buf;
2485 }
2486 
2487 #endif // HAVE_TGETENT
2488 
2489 /*
2490  * Set the terminal name and initialize the terminal options.
2491  * If "name" is NULL or empty, get the terminal name from the environment.
2492  * If that fails, use the default terminal name.
2493  */
2494     void
2495 termcapinit(char_u *name)
2496 {
2497     char_u	*term;
2498 
2499     if (name != NULL && *name == NUL)
2500 	name = NULL;	    // empty name is equal to no name
2501     term = name;
2502 
2503 #ifndef MSWIN
2504     if (term == NULL)
2505 	term = mch_getenv((char_u *)"TERM");
2506 #endif
2507     if (term == NULL || *term == NUL)
2508 	term = DEFAULT_TERM;
2509     set_string_option_direct((char_u *)"term", -1, term, OPT_FREE, 0);
2510 
2511     // Set the default terminal name.
2512     set_string_default("term", term);
2513     set_string_default("ttytype", term);
2514 
2515     /*
2516      * Avoid using "term" here, because the next mch_getenv() may overwrite it.
2517      */
2518     set_termname(T_NAME != NULL ? T_NAME : term);
2519 }
2520 
2521 /*
2522  * The number of calls to ui_write is reduced by using "out_buf".
2523  */
2524 #define OUT_SIZE	2047
2525 
2526 // add one to allow mch_write() in os_win32.c to append a NUL
2527 static char_u		out_buf[OUT_SIZE + 1];
2528 
2529 static int		out_pos = 0;	// number of chars in out_buf
2530 
2531 // Since the maximum number of SGR parameters shown as a normal value range is
2532 // 16, the escape sequence length can be 4 * 16 + lead + tail.
2533 #define MAX_ESC_SEQ_LEN	80
2534 
2535 /*
2536  * out_flush(): flush the output buffer
2537  */
2538     void
2539 out_flush(void)
2540 {
2541     int	    len;
2542 
2543     if (out_pos != 0)
2544     {
2545 	// set out_pos to 0 before ui_write, to avoid recursiveness
2546 	len = out_pos;
2547 	out_pos = 0;
2548 	ui_write(out_buf, len, FALSE);
2549 #ifdef FEAT_JOB_CHANNEL
2550 	if (ch_log_output)
2551 	{
2552 	    out_buf[len] = NUL;
2553 	    ch_log(NULL, "raw %s output: \"%s\"",
2554 # ifdef FEAT_GUI
2555 			(gui.in_use && !gui.dying && !gui.starting) ? "GUI" :
2556 # endif
2557 			"terminal",
2558 			out_buf);
2559 	    ch_log_output = FALSE;
2560 	}
2561 #endif
2562     }
2563 }
2564 
2565 /*
2566  * out_flush_cursor(): flush the output buffer and redraw the cursor.
2567  * Does not flush recursively in the GUI to avoid slow drawing.
2568  */
2569     void
2570 out_flush_cursor(
2571     int	    force UNUSED,   // when TRUE, update cursor even when not moved
2572     int	    clear_selection UNUSED) // clear selection under cursor
2573 {
2574     mch_disable_flush();
2575     out_flush();
2576     mch_enable_flush();
2577 #ifdef FEAT_GUI
2578     if (gui.in_use)
2579     {
2580 	gui_update_cursor(force, clear_selection);
2581 	gui_may_flush();
2582     }
2583 #endif
2584 }
2585 
2586 
2587 /*
2588  * Sometimes a byte out of a multi-byte character is written with out_char().
2589  * To avoid flushing half of the character, call this function first.
2590  */
2591     void
2592 out_flush_check(void)
2593 {
2594     if (enc_dbcs != 0 && out_pos >= OUT_SIZE - MB_MAXBYTES)
2595 	out_flush();
2596 }
2597 
2598 #ifdef FEAT_GUI
2599 /*
2600  * out_trash(): Throw away the contents of the output buffer
2601  */
2602     void
2603 out_trash(void)
2604 {
2605     out_pos = 0;
2606 }
2607 #endif
2608 
2609 /*
2610  * out_char(c): put a byte into the output buffer.
2611  *		Flush it if it becomes full.
2612  * This should not be used for outputting text on the screen (use functions
2613  * like msg_puts() and screen_putchar() for that).
2614  */
2615     void
2616 out_char(unsigned c)
2617 {
2618 #if defined(UNIX) || defined(VMS) || defined(AMIGA) || defined(MACOS_X)
2619     if (c == '\n')	// turn LF into CR-LF (CRMOD doesn't seem to do this)
2620 	out_char('\r');
2621 #endif
2622 
2623     out_buf[out_pos++] = c;
2624 
2625     // For testing we flush each time.
2626     if (out_pos >= OUT_SIZE || p_wd)
2627 	out_flush();
2628 }
2629 
2630 /*
2631  * Output "c" like out_char(), but don't flush when p_wd is set.
2632  */
2633     static int
2634 out_char_nf(int c)
2635 {
2636     out_buf[out_pos++] = (unsigned)c;
2637 
2638     if (out_pos >= OUT_SIZE)
2639 	out_flush();
2640     return (unsigned)c;
2641 }
2642 
2643 /*
2644  * A never-padding out_str().
2645  * Use this whenever you don't want to run the string through tputs().
2646  * tputs() above is harmless, but tputs() from the termcap library
2647  * is likely to strip off leading digits, that it mistakes for padding
2648  * information, and "%i", "%d", etc.
2649  * This should only be used for writing terminal codes, not for outputting
2650  * normal text (use functions like msg_puts() and screen_putchar() for that).
2651  */
2652     void
2653 out_str_nf(char_u *s)
2654 {
2655     // avoid terminal strings being split up
2656     if (out_pos > OUT_SIZE - MAX_ESC_SEQ_LEN)
2657 	out_flush();
2658 
2659     while (*s)
2660 	out_char_nf(*s++);
2661 
2662     // For testing we write one string at a time.
2663     if (p_wd)
2664 	out_flush();
2665 }
2666 
2667 /*
2668  * A conditional-flushing out_str, mainly for visualbell.
2669  * Handles a delay internally, because termlib may not respect the delay or do
2670  * it at the wrong time.
2671  * Note: Only for terminal strings.
2672  */
2673     void
2674 out_str_cf(char_u *s)
2675 {
2676     if (s != NULL && *s)
2677     {
2678 #ifdef HAVE_TGETENT
2679 	char_u *p;
2680 #endif
2681 
2682 #ifdef FEAT_GUI
2683 	// Don't use tputs() when GUI is used, ncurses crashes.
2684 	if (gui.in_use)
2685 	{
2686 	    out_str_nf(s);
2687 	    return;
2688 	}
2689 #endif
2690 	if (out_pos > OUT_SIZE - MAX_ESC_SEQ_LEN)
2691 	    out_flush();
2692 #ifdef HAVE_TGETENT
2693 	for (p = s; *s; ++s)
2694 	{
2695 	    // flush just before delay command
2696 	    if (*s == '$' && *(s + 1) == '<')
2697 	    {
2698 		char_u save_c = *s;
2699 		int duration = atoi((char *)s + 2);
2700 
2701 		*s = NUL;
2702 		tputs((char *)p, 1, TPUTSFUNCAST out_char_nf);
2703 		*s = save_c;
2704 		out_flush();
2705 # ifdef ELAPSED_FUNC
2706 		// Only sleep here if we can limit this happening in
2707 		// vim_beep().
2708 		p = vim_strchr(s, '>');
2709 		if (p == NULL || duration <= 0)
2710 		{
2711 		    // can't parse the time, don't sleep here
2712 		    p = s;
2713 		}
2714 		else
2715 		{
2716 		    ++p;
2717 		    do_sleep(duration, FALSE);
2718 		}
2719 # else
2720 		// Rely on the terminal library to sleep.
2721 		p = s;
2722 # endif
2723 		break;
2724 	    }
2725 	}
2726 	tputs((char *)p, 1, TPUTSFUNCAST out_char_nf);
2727 #else
2728 	while (*s)
2729 	    out_char_nf(*s++);
2730 #endif
2731 
2732 	// For testing we write one string at a time.
2733 	if (p_wd)
2734 	    out_flush();
2735     }
2736 }
2737 
2738 /*
2739  * out_str(s): Put a character string a byte at a time into the output buffer.
2740  * If HAVE_TGETENT is defined use tputs(), the termcap parser. (jw)
2741  * This should only be used for writing terminal codes, not for outputting
2742  * normal text (use functions like msg_puts() and screen_putchar() for that).
2743  */
2744     void
2745 out_str(char_u *s)
2746 {
2747     if (s != NULL && *s)
2748     {
2749 #ifdef FEAT_GUI
2750 	// Don't use tputs() when GUI is used, ncurses crashes.
2751 	if (gui.in_use)
2752 	{
2753 	    out_str_nf(s);
2754 	    return;
2755 	}
2756 #endif
2757 	// avoid terminal strings being split up
2758 	if (out_pos > OUT_SIZE - MAX_ESC_SEQ_LEN)
2759 	    out_flush();
2760 #ifdef HAVE_TGETENT
2761 	tputs((char *)s, 1, TPUTSFUNCAST out_char_nf);
2762 #else
2763 	while (*s)
2764 	    out_char_nf(*s++);
2765 #endif
2766 
2767 	// For testing we write one string at a time.
2768 	if (p_wd)
2769 	    out_flush();
2770     }
2771 }
2772 
2773 /*
2774  * cursor positioning using termcap parser. (jw)
2775  */
2776     void
2777 term_windgoto(int row, int col)
2778 {
2779     OUT_STR(tgoto((char *)T_CM, col, row));
2780 }
2781 
2782     void
2783 term_cursor_right(int i)
2784 {
2785     OUT_STR(tgoto((char *)T_CRI, 0, i));
2786 }
2787 
2788     void
2789 term_append_lines(int line_count)
2790 {
2791     OUT_STR(tgoto((char *)T_CAL, 0, line_count));
2792 }
2793 
2794     void
2795 term_delete_lines(int line_count)
2796 {
2797     OUT_STR(tgoto((char *)T_CDL, 0, line_count));
2798 }
2799 
2800 #if defined(HAVE_TGETENT) || defined(PROTO)
2801     void
2802 term_set_winpos(int x, int y)
2803 {
2804     // Can't handle a negative value here
2805     if (x < 0)
2806 	x = 0;
2807     if (y < 0)
2808 	y = 0;
2809     OUT_STR(tgoto((char *)T_CWP, y, x));
2810 }
2811 
2812 # if defined(FEAT_TERMRESPONSE) || defined(PROTO)
2813 /*
2814  * Return TRUE if we can request the terminal for a response.
2815  */
2816     static int
2817 can_get_termresponse()
2818 {
2819     return cur_tmode == TMODE_RAW
2820 	    && termcap_active
2821 #  ifdef UNIX
2822 	    && (is_not_a_term() || (isatty(1) && isatty(read_cmd_fd)))
2823 #  endif
2824 	    && p_ek;
2825 }
2826 
2827 /*
2828  * Set "status" to STATUS_SENT.
2829  */
2830     static void
2831 termrequest_sent(termrequest_T *status)
2832 {
2833     status->tr_progress = STATUS_SENT;
2834     status->tr_start = time(NULL);
2835 }
2836 
2837 /*
2838  * Return TRUE if any of the requests are in STATUS_SENT.
2839  */
2840     static int
2841 termrequest_any_pending()
2842 {
2843     int	    i;
2844     time_t  now = time(NULL);
2845 
2846     for (i = 0; all_termrequests[i] != NULL; ++i)
2847     {
2848 	if (all_termrequests[i]->tr_progress == STATUS_SENT)
2849 	{
2850 	    if (all_termrequests[i]->tr_start > 0 && now > 0
2851 				    && all_termrequests[i]->tr_start + 2 < now)
2852 		// Sent the request more than 2 seconds ago and didn't get a
2853 		// response, assume it failed.
2854 		all_termrequests[i]->tr_progress = STATUS_FAIL;
2855 	    else
2856 		return TRUE;
2857 	}
2858     }
2859     return FALSE;
2860 }
2861 
2862 static int winpos_x = -1;
2863 static int winpos_y = -1;
2864 static int did_request_winpos = 0;
2865 
2866 # if defined(FEAT_EVAL) || defined(FEAT_TERMINAL) || defined(PROTO)
2867 /*
2868  * Try getting the Vim window position from the terminal.
2869  * Returns OK or FAIL.
2870  */
2871     int
2872 term_get_winpos(int *x, int *y, varnumber_T timeout)
2873 {
2874     int count = 0;
2875     int prev_winpos_x = winpos_x;
2876     int prev_winpos_y = winpos_y;
2877 
2878     if (*T_CGP == NUL || !can_get_termresponse())
2879 	return FAIL;
2880     winpos_x = -1;
2881     winpos_y = -1;
2882     ++did_request_winpos;
2883     termrequest_sent(&winpos_status);
2884     OUT_STR(T_CGP);
2885     out_flush();
2886 
2887     // Try reading the result for "timeout" msec.
2888     while (count++ <= timeout / 10 && !got_int)
2889     {
2890 	(void)vpeekc_nomap();
2891 	if (winpos_x >= 0 && winpos_y >= 0)
2892 	{
2893 	    *x = winpos_x;
2894 	    *y = winpos_y;
2895 	    return OK;
2896 	}
2897 	ui_delay(10L, FALSE);
2898     }
2899     // Do not reset "did_request_winpos", if we timed out the response might
2900     // still come later and we must consume it.
2901 
2902     winpos_x = prev_winpos_x;
2903     winpos_y = prev_winpos_y;
2904     if (timeout < 10 && prev_winpos_y >= 0 && prev_winpos_x >= 0)
2905     {
2906 	// Polling: return previous values if we have them.
2907 	*x = winpos_x;
2908 	*y = winpos_y;
2909 	return OK;
2910     }
2911 
2912     return FALSE;
2913 }
2914 #  endif
2915 # endif
2916 
2917     void
2918 term_set_winsize(int height, int width)
2919 {
2920     OUT_STR(tgoto((char *)T_CWS, width, height));
2921 }
2922 #endif
2923 
2924     static void
2925 term_color(char_u *s, int n)
2926 {
2927     char	buf[20];
2928     int		i = *s == CSI ? 1 : 2;
2929 		// index in s[] just after <Esc>[ or CSI
2930 
2931     // Special handling of 16 colors, because termcap can't handle it
2932     // Also accept "\e[3%dm" for TERMINFO, it is sometimes used
2933     // Also accept CSI instead of <Esc>[
2934     if (n >= 8 && t_colors >= 16
2935 	      && ((s[0] == ESC && s[1] == '[')
2936 #if defined(FEAT_VTP) && defined(FEAT_TERMGUICOLORS)
2937 		  || (s[0] == ESC && s[1] == '|')
2938 #endif
2939 		  || (s[0] == CSI && (i = 1) == 1))
2940 	      && s[i] != NUL
2941 	      && (STRCMP(s + i + 1, "%p1%dm") == 0
2942 		  || STRCMP(s + i + 1, "%dm") == 0)
2943 	      && (s[i] == '3' || s[i] == '4'))
2944     {
2945 #ifdef TERMINFO
2946 	char *format = "%s%s%%p1%%dm";
2947 #else
2948 	char *format = "%s%s%%dm";
2949 #endif
2950 	char *lead = i == 2 ? (
2951 #if defined(FEAT_VTP) && defined(FEAT_TERMGUICOLORS)
2952 		    s[1] == '|' ? IF_EB("\033|", ESC_STR "|") :
2953 #endif
2954 		    IF_EB("\033[", ESC_STR "[")) : "\233";
2955 	char *tail = s[i] == '3' ? (n >= 16 ? "38;5;" : "9")
2956 				 : (n >= 16 ? "48;5;" : "10");
2957 
2958 	sprintf(buf, format, lead, tail);
2959 	OUT_STR(tgoto(buf, 0, n >= 16 ? n : n - 8));
2960     }
2961     else
2962 	OUT_STR(tgoto((char *)s, 0, n));
2963 }
2964 
2965     void
2966 term_fg_color(int n)
2967 {
2968     // Use "AF" termcap entry if present, "Sf" entry otherwise
2969     if (*T_CAF)
2970 	term_color(T_CAF, n);
2971     else if (*T_CSF)
2972 	term_color(T_CSF, n);
2973 }
2974 
2975     void
2976 term_bg_color(int n)
2977 {
2978     // Use "AB" termcap entry if present, "Sb" entry otherwise
2979     if (*T_CAB)
2980 	term_color(T_CAB, n);
2981     else if (*T_CSB)
2982 	term_color(T_CSB, n);
2983 }
2984 
2985     void
2986 term_ul_color(int n)
2987 {
2988     if (*T_CAU)
2989 	term_color(T_CAU, n);
2990 }
2991 
2992 /*
2993  * Return "dark" or "light" depending on the kind of terminal.
2994  * This is just guessing!  Recognized are:
2995  * "linux"	    Linux console
2996  * "screen.linux"   Linux console with screen
2997  * "cygwin.*"	    Cygwin shell
2998  * "putty.*"	    Putty program
2999  * We also check the COLORFGBG environment variable, which is set by
3000  * rxvt and derivatives. This variable contains either two or three
3001  * values separated by semicolons; we want the last value in either
3002  * case. If this value is 0-6 or 8, our background is dark.
3003  */
3004     char_u *
3005 term_bg_default(void)
3006 {
3007 #if defined(MSWIN)
3008     // DOS console is nearly always black
3009     return (char_u *)"dark";
3010 #else
3011     char_u	*p;
3012 
3013     if (STRCMP(T_NAME, "linux") == 0
3014 	    || STRCMP(T_NAME, "screen.linux") == 0
3015 	    || STRNCMP(T_NAME, "cygwin", 6) == 0
3016 	    || STRNCMP(T_NAME, "putty", 5) == 0
3017 	    || ((p = mch_getenv((char_u *)"COLORFGBG")) != NULL
3018 		&& (p = vim_strrchr(p, ';')) != NULL
3019 		&& ((p[1] >= '0' && p[1] <= '6') || p[1] == '8')
3020 		&& p[2] == NUL))
3021 	return (char_u *)"dark";
3022     return (char_u *)"light";
3023 #endif
3024 }
3025 
3026 #if defined(FEAT_TERMGUICOLORS) || defined(PROTO)
3027 
3028 #define RED(rgb)   (((long_u)(rgb) >> 16) & 0xFF)
3029 #define GREEN(rgb) (((long_u)(rgb) >>  8) & 0xFF)
3030 #define BLUE(rgb)  (((long_u)(rgb)      ) & 0xFF)
3031 
3032     static void
3033 term_rgb_color(char_u *s, guicolor_T rgb)
3034 {
3035 #define MAX_COLOR_STR_LEN 100
3036     char	buf[MAX_COLOR_STR_LEN];
3037 
3038     vim_snprintf(buf, MAX_COLOR_STR_LEN,
3039 				  (char *)s, RED(rgb), GREEN(rgb), BLUE(rgb));
3040 #ifdef FEAT_VTP
3041     if (use_wt())
3042     {
3043 	out_flush();
3044 	buf[1] = '[';
3045 	vtp_printf(buf);
3046     }
3047     else
3048 #endif
3049 	OUT_STR(buf);
3050 }
3051 
3052     void
3053 term_fg_rgb_color(guicolor_T rgb)
3054 {
3055     term_rgb_color(T_8F, rgb);
3056 }
3057 
3058     void
3059 term_bg_rgb_color(guicolor_T rgb)
3060 {
3061     term_rgb_color(T_8B, rgb);
3062 }
3063 
3064     void
3065 term_ul_rgb_color(guicolor_T rgb)
3066 {
3067     term_rgb_color(T_8U, rgb);
3068 }
3069 #endif
3070 
3071 #if (defined(FEAT_TITLE) && (defined(UNIX) || defined(VMS) \
3072 	|| defined(MACOS_X))) || defined(PROTO)
3073 /*
3074  * Generic function to set window title, using t_ts and t_fs.
3075  */
3076     void
3077 term_settitle(char_u *title)
3078 {
3079 #ifdef FEAT_JOB_CHANNEL
3080     ch_log_output = TRUE;
3081 #endif
3082     // t_ts takes one argument: column in status line
3083     OUT_STR(tgoto((char *)T_TS, 0, 0));	// set title start
3084     out_str_nf(title);
3085     out_str(T_FS);			// set title end
3086     out_flush();
3087 }
3088 
3089 /*
3090  * Tell the terminal to push (save) the title and/or icon, so that it can be
3091  * popped (restored) later.
3092  */
3093     void
3094 term_push_title(int which)
3095 {
3096     if ((which & SAVE_RESTORE_TITLE) && T_CST != NULL && *T_CST != NUL)
3097     {
3098 	OUT_STR(T_CST);
3099 	out_flush();
3100     }
3101 
3102     if ((which & SAVE_RESTORE_ICON) && T_SSI != NULL && *T_SSI != NUL)
3103     {
3104 	OUT_STR(T_SSI);
3105 	out_flush();
3106     }
3107 }
3108 
3109 /*
3110  * Tell the terminal to pop the title and/or icon.
3111  */
3112     void
3113 term_pop_title(int which)
3114 {
3115     if ((which & SAVE_RESTORE_TITLE) && T_CRT != NULL && *T_CRT != NUL)
3116     {
3117 	OUT_STR(T_CRT);
3118 	out_flush();
3119     }
3120 
3121     if ((which & SAVE_RESTORE_ICON) && T_SRI != NULL && *T_SRI != NUL)
3122     {
3123 	OUT_STR(T_SRI);
3124 	out_flush();
3125     }
3126 }
3127 #endif
3128 
3129 /*
3130  * Make sure we have a valid set or terminal options.
3131  * Replace all entries that are NULL by empty_option
3132  */
3133     void
3134 ttest(int pairs)
3135 {
3136     char_u *env_colors;
3137 
3138     check_options();		    // make sure no options are NULL
3139 
3140     /*
3141      * MUST have "cm": cursor motion.
3142      */
3143     if (*T_CM == NUL)
3144 	emsg(_("E437: terminal capability \"cm\" required"));
3145 
3146     /*
3147      * if "cs" defined, use a scroll region, it's faster.
3148      */
3149     if (*T_CS != NUL)
3150 	scroll_region = TRUE;
3151     else
3152 	scroll_region = FALSE;
3153 
3154     if (pairs)
3155     {
3156 	/*
3157 	 * optional pairs
3158 	 */
3159 	// TP goes to normal mode for TI (invert) and TB (bold)
3160 	if (*T_ME == NUL)
3161 	    T_ME = T_MR = T_MD = T_MB = empty_option;
3162 	if (*T_SO == NUL || *T_SE == NUL)
3163 	    T_SO = T_SE = empty_option;
3164 	if (*T_US == NUL || *T_UE == NUL)
3165 	    T_US = T_UE = empty_option;
3166 	if (*T_CZH == NUL || *T_CZR == NUL)
3167 	    T_CZH = T_CZR = empty_option;
3168 
3169 	// T_VE is needed even though T_VI is not defined
3170 	if (*T_VE == NUL)
3171 	    T_VI = empty_option;
3172 
3173 	// if 'mr' or 'me' is not defined use 'so' and 'se'
3174 	if (*T_ME == NUL)
3175 	{
3176 	    T_ME = T_SE;
3177 	    T_MR = T_SO;
3178 	    T_MD = T_SO;
3179 	}
3180 
3181 	// if 'so' or 'se' is not defined use 'mr' and 'me'
3182 	if (*T_SO == NUL)
3183 	{
3184 	    T_SE = T_ME;
3185 	    if (*T_MR == NUL)
3186 		T_SO = T_MD;
3187 	    else
3188 		T_SO = T_MR;
3189 	}
3190 
3191 	// if 'ZH' or 'ZR' is not defined use 'mr' and 'me'
3192 	if (*T_CZH == NUL)
3193 	{
3194 	    T_CZR = T_ME;
3195 	    if (*T_MR == NUL)
3196 		T_CZH = T_MD;
3197 	    else
3198 		T_CZH = T_MR;
3199 	}
3200 
3201 	// "Sb" and "Sf" come in pairs
3202 	if (*T_CSB == NUL || *T_CSF == NUL)
3203 	{
3204 	    T_CSB = empty_option;
3205 	    T_CSF = empty_option;
3206 	}
3207 
3208 	// "AB" and "AF" come in pairs
3209 	if (*T_CAB == NUL || *T_CAF == NUL)
3210 	{
3211 	    T_CAB = empty_option;
3212 	    T_CAF = empty_option;
3213 	}
3214 
3215 	// if 'Sb' and 'AB' are not defined, reset "Co"
3216 	if (*T_CSB == NUL && *T_CAB == NUL)
3217 	    free_one_termoption(T_CCO);
3218 
3219 	// Set 'weirdinvert' according to value of 't_xs'
3220 	p_wiv = (*T_XS != NUL);
3221     }
3222     need_gather = TRUE;
3223 
3224     // Set t_colors to the value of $COLORS or t_Co.  Ignore $COLORS in the
3225     // GUI.
3226     t_colors = atoi((char *)T_CCO);
3227 #ifdef FEAT_GUI
3228     if (!gui.in_use)
3229 #endif
3230     {
3231 	env_colors = mch_getenv((char_u *)"COLORS");
3232 	if (env_colors != NULL && isdigit(*env_colors))
3233 	{
3234 	    int colors = atoi((char *)env_colors);
3235 
3236 	    if (colors != t_colors)
3237 		set_color_count(colors);
3238 	}
3239     }
3240 }
3241 
3242 #if (defined(FEAT_GUI) && (defined(FEAT_MENU) || !defined(USE_ON_FLY_SCROLL))) \
3243 	|| defined(PROTO)
3244 /*
3245  * Represent the given long_u as individual bytes, with the most significant
3246  * byte first, and store them in dst.
3247  */
3248     void
3249 add_long_to_buf(long_u val, char_u *dst)
3250 {
3251     int	    i;
3252     int	    shift;
3253 
3254     for (i = 1; i <= (int)sizeof(long_u); i++)
3255     {
3256 	shift = 8 * (sizeof(long_u) - i);
3257 	dst[i - 1] = (char_u) ((val >> shift) & 0xff);
3258     }
3259 }
3260 
3261 /*
3262  * Interpret the next string of bytes in buf as a long integer, with the most
3263  * significant byte first.  Note that it is assumed that buf has been through
3264  * inchar(), so that NUL and K_SPECIAL will be represented as three bytes each.
3265  * Puts result in val, and returns the number of bytes read from buf
3266  * (between sizeof(long_u) and 2 * sizeof(long_u)), or -1 if not enough bytes
3267  * were present.
3268  */
3269     static int
3270 get_long_from_buf(char_u *buf, long_u *val)
3271 {
3272     int	    len;
3273     char_u  bytes[sizeof(long_u)];
3274     int	    i;
3275     int	    shift;
3276 
3277     *val = 0;
3278     len = get_bytes_from_buf(buf, bytes, (int)sizeof(long_u));
3279     if (len != -1)
3280     {
3281 	for (i = 0; i < (int)sizeof(long_u); i++)
3282 	{
3283 	    shift = 8 * (sizeof(long_u) - 1 - i);
3284 	    *val += (long_u)bytes[i] << shift;
3285 	}
3286     }
3287     return len;
3288 }
3289 #endif
3290 
3291 /*
3292  * Read the next num_bytes bytes from buf, and store them in bytes.  Assume
3293  * that buf has been through inchar().	Returns the actual number of bytes used
3294  * from buf (between num_bytes and num_bytes*2), or -1 if not enough bytes were
3295  * available.
3296  */
3297     int
3298 get_bytes_from_buf(char_u *buf, char_u *bytes, int num_bytes)
3299 {
3300     int	    len = 0;
3301     int	    i;
3302     char_u  c;
3303 
3304     for (i = 0; i < num_bytes; i++)
3305     {
3306 	if ((c = buf[len++]) == NUL)
3307 	    return -1;
3308 	if (c == K_SPECIAL)
3309 	{
3310 	    if (buf[len] == NUL || buf[len + 1] == NUL)	    // cannot happen?
3311 		return -1;
3312 	    if (buf[len++] == (int)KS_ZERO)
3313 		c = NUL;
3314 	    // else it should be KS_SPECIAL; when followed by KE_FILLER c is
3315 	    // K_SPECIAL, or followed by KE_CSI and c must be CSI.
3316 	    if (buf[len++] == (int)KE_CSI)
3317 		c = CSI;
3318 	}
3319 	else if (c == CSI && buf[len] == KS_EXTRA
3320 					       && buf[len + 1] == (int)KE_CSI)
3321 	    // CSI is stored as CSI KS_SPECIAL KE_CSI to avoid confusion with
3322 	    // the start of a special key, see add_to_input_buf_csi().
3323 	    len += 2;
3324 	bytes[i] = c;
3325     }
3326     return len;
3327 }
3328 
3329 /*
3330  * Check if the new shell size is valid, correct it if it's too small or way
3331  * too big.
3332  */
3333     void
3334 check_shellsize(void)
3335 {
3336     if (Rows < min_rows())	// need room for one window and command line
3337 	Rows = min_rows();
3338     limit_screen_size();
3339 }
3340 
3341 /*
3342  * Limit Rows and Columns to avoid an overflow in Rows * Columns.
3343  */
3344     void
3345 limit_screen_size(void)
3346 {
3347     if (Columns < MIN_COLUMNS)
3348 	Columns = MIN_COLUMNS;
3349     else if (Columns > 10000)
3350 	Columns = 10000;
3351     if (Rows > 1000)
3352 	Rows = 1000;
3353 }
3354 
3355 /*
3356  * Invoked just before the screen structures are going to be (re)allocated.
3357  */
3358     void
3359 win_new_shellsize(void)
3360 {
3361     static int	old_Rows = 0;
3362     static int	old_Columns = 0;
3363 
3364     if (old_Rows != Rows || old_Columns != Columns)
3365 	ui_new_shellsize();
3366     if (old_Rows != Rows)
3367     {
3368 	// if 'window' uses the whole screen, keep it using that
3369 	if (p_window == old_Rows - 1 || old_Rows == 0)
3370 	    p_window = Rows - 1;
3371 	old_Rows = Rows;
3372 	shell_new_rows();	// update window sizes
3373     }
3374     if (old_Columns != Columns)
3375     {
3376 	old_Columns = Columns;
3377 	shell_new_columns();	// update window sizes
3378     }
3379 }
3380 
3381 /*
3382  * Call this function when the Vim shell has been resized in any way.
3383  * Will obtain the current size and redraw (also when size didn't change).
3384  */
3385     void
3386 shell_resized(void)
3387 {
3388     set_shellsize(0, 0, FALSE);
3389 }
3390 
3391 /*
3392  * Check if the shell size changed.  Handle a resize.
3393  * When the size didn't change, nothing happens.
3394  */
3395     void
3396 shell_resized_check(void)
3397 {
3398     int		old_Rows = Rows;
3399     int		old_Columns = Columns;
3400 
3401     if (!exiting
3402 #ifdef FEAT_GUI
3403 	    // Do not get the size when executing a shell command during
3404 	    // startup.
3405 	    && !gui.starting
3406 #endif
3407 	    )
3408     {
3409 	(void)ui_get_shellsize();
3410 	check_shellsize();
3411 	if (old_Rows != Rows || old_Columns != Columns)
3412 	    shell_resized();
3413     }
3414 }
3415 
3416 /*
3417  * Set size of the Vim shell.
3418  * If 'mustset' is TRUE, we must set Rows and Columns, do not get the real
3419  * window size (this is used for the :win command).
3420  * If 'mustset' is FALSE, we may try to get the real window size and if
3421  * it fails use 'width' and 'height'.
3422  */
3423     void
3424 set_shellsize(int width, int height, int mustset)
3425 {
3426     static int		busy = FALSE;
3427 
3428     /*
3429      * Avoid recursiveness, can happen when setting the window size causes
3430      * another window-changed signal.
3431      */
3432     if (busy)
3433 	return;
3434 
3435     if (width < 0 || height < 0)    // just checking...
3436 	return;
3437 
3438     if (State == HITRETURN || State == SETWSIZE)
3439     {
3440 	// postpone the resizing
3441 	State = SETWSIZE;
3442 	return;
3443     }
3444 
3445     if (updating_screen)
3446 	// resizing while in update_screen() may cause a crash
3447 	return;
3448 
3449     // curwin->w_buffer can be NULL when we are closing a window and the
3450     // buffer (or window) has already been closed and removing a scrollbar
3451     // causes a resize event. Don't resize then, it will happen after entering
3452     // another buffer.
3453     if (curwin->w_buffer == NULL || curwin->w_lines == NULL)
3454 	return;
3455 
3456     ++busy;
3457 
3458 #ifdef AMIGA
3459     out_flush();	    // must do this before mch_get_shellsize() for
3460 			    // some obscure reason
3461 #endif
3462 
3463     if (mustset || (ui_get_shellsize() == FAIL && height != 0))
3464     {
3465 	Rows = height;
3466 	Columns = width;
3467 	check_shellsize();
3468 	ui_set_shellsize(mustset);
3469     }
3470     else
3471 	check_shellsize();
3472 
3473     // The window layout used to be adjusted here, but it now happens in
3474     // screenalloc() (also invoked from screenclear()).  That is because the
3475     // "busy" check above may skip this, but not screenalloc().
3476 
3477     if (State != ASKMORE && State != EXTERNCMD && State != CONFIRM)
3478 	screenclear();
3479     else
3480 	screen_start();	    // don't know where cursor is now
3481 
3482     if (starting != NO_SCREEN)
3483     {
3484 #ifdef FEAT_TITLE
3485 	maketitle();
3486 #endif
3487 	changed_line_abv_curs();
3488 	invalidate_botline();
3489 
3490 	/*
3491 	 * We only redraw when it's needed:
3492 	 * - While at the more prompt or executing an external command, don't
3493 	 *   redraw, but position the cursor.
3494 	 * - While editing the command line, only redraw that.
3495 	 * - in Ex mode, don't redraw anything.
3496 	 * - Otherwise, redraw right now, and position the cursor.
3497 	 * Always need to call update_screen() or screenalloc(), to make
3498 	 * sure Rows/Columns and the size of ScreenLines[] is correct!
3499 	 */
3500 	if (State == ASKMORE || State == EXTERNCMD || State == CONFIRM
3501 							     || exmode_active)
3502 	{
3503 	    screenalloc(FALSE);
3504 	    repeat_message();
3505 	}
3506 	else
3507 	{
3508 	    if (curwin->w_p_scb)
3509 		do_check_scrollbind(TRUE);
3510 	    if (State & CMDLINE)
3511 	    {
3512 		update_screen(NOT_VALID);
3513 		redrawcmdline();
3514 	    }
3515 	    else
3516 	    {
3517 		update_topline();
3518 		if (pum_visible())
3519 		{
3520 		    redraw_later(NOT_VALID);
3521 		    ins_compl_show_pum();
3522 		}
3523 		update_screen(NOT_VALID);
3524 		if (redrawing())
3525 		    setcursor();
3526 	    }
3527 	}
3528 	cursor_on();	    // redrawing may have switched it off
3529     }
3530     out_flush();
3531     --busy;
3532 }
3533 
3534 /*
3535  * Set the terminal to TMODE_RAW (for Normal mode) or TMODE_COOK (for external
3536  * commands and Ex mode).
3537  */
3538     void
3539 settmode(tmode_T tmode)
3540 {
3541 #ifdef FEAT_GUI
3542     // don't set the term where gvim was started to any mode
3543     if (gui.in_use)
3544 	return;
3545 #endif
3546 
3547     if (full_screen)
3548     {
3549 	/*
3550 	 * When returning after calling a shell cur_tmode is TMODE_UNKNOWN,
3551 	 * set the terminal to raw mode, even though we think it already is,
3552 	 * because the shell program may have reset the terminal mode.
3553 	 * When we think the terminal is normal, don't try to set it to
3554 	 * normal again, because that causes problems (logout!) on some
3555 	 * machines.
3556 	 */
3557 	if (tmode != cur_tmode)
3558 	{
3559 #ifdef FEAT_TERMRESPONSE
3560 # ifdef FEAT_GUI
3561 	    if (!gui.in_use && !gui.starting)
3562 # endif
3563 	    {
3564 		// May need to check for T_CRV response and termcodes, it
3565 		// doesn't work in Cooked mode, an external program may get
3566 		// them.
3567 		if (tmode != TMODE_RAW && termrequest_any_pending())
3568 		    (void)vpeekc_nomap();
3569 		check_for_codes_from_term();
3570 	    }
3571 #endif
3572 	    if (tmode != TMODE_RAW)
3573 		mch_setmouse(FALSE);	// switch mouse off
3574 
3575 	    // Disable bracketed paste and modifyOtherKeys in cooked mode.
3576 	    // Avoid doing this too often, on some terminals the codes are not
3577 	    // handled properly.
3578 	    if (termcap_active && tmode != TMODE_SLEEP
3579 						   && cur_tmode != TMODE_SLEEP)
3580 	    {
3581 #ifdef FEAT_JOB_CHANNEL
3582 		ch_log_output = TRUE;
3583 #endif
3584 		if (tmode != TMODE_RAW)
3585 		{
3586 		    out_str(T_BD);	// disable bracketed paste mode
3587 		    out_str(T_CTE);	// possibly disables modifyOtherKeys
3588 		}
3589 		else
3590 		{
3591 		    out_str(T_BE);	// enable bracketed paste mode (should
3592 					// be before mch_settmode().
3593 		    out_str(T_CTI);	// possibly enables modifyOtherKeys
3594 		}
3595 	    }
3596 	    out_flush();
3597 	    mch_settmode(tmode);	// machine specific function
3598 	    cur_tmode = tmode;
3599 	    if (tmode == TMODE_RAW)
3600 		setmouse();		// may switch mouse on
3601 	    out_flush();
3602 	}
3603 #ifdef FEAT_TERMRESPONSE
3604 	may_req_termresponse();
3605 #endif
3606     }
3607 }
3608 
3609     void
3610 starttermcap(void)
3611 {
3612     if (full_screen && !termcap_active)
3613     {
3614 #ifdef FEAT_JOB_CHANNEL
3615 	ch_log_output = TRUE;
3616 #endif
3617 	out_str(T_TI);			// start termcap mode
3618 	out_str(T_CTI);			// start "raw" mode
3619 	out_str(T_KS);			// start "keypad transmit" mode
3620 	out_str(T_BE);			// enable bracketed paste mode
3621 
3622 #if defined(UNIX) || defined(VMS)
3623 	// Enable xterm's focus reporting mode when 'esckeys' is set.
3624 	if (focus_mode && p_ek && *T_FE != NUL)
3625 	    out_str(T_FE);
3626 #endif
3627 
3628 	out_flush();
3629 	termcap_active = TRUE;
3630 	screen_start();			// don't know where cursor is now
3631 #ifdef FEAT_TERMRESPONSE
3632 # ifdef FEAT_GUI
3633 	if (!gui.in_use && !gui.starting)
3634 # endif
3635 	{
3636 	    may_req_termresponse();
3637 	    // Immediately check for a response.  If t_Co changes, we don't
3638 	    // want to redraw with wrong colors first.
3639 	    if (crv_status.tr_progress == STATUS_SENT)
3640 		check_for_codes_from_term();
3641 	}
3642 #endif
3643     }
3644 }
3645 
3646     void
3647 stoptermcap(void)
3648 {
3649     screen_stop_highlight();
3650     reset_cterm_colors();
3651     if (termcap_active)
3652     {
3653 #ifdef FEAT_TERMRESPONSE
3654 # ifdef FEAT_GUI
3655 	if (!gui.in_use && !gui.starting)
3656 # endif
3657 	{
3658 	    // May need to discard T_CRV, T_U7 or T_RBG response.
3659 	    if (termrequest_any_pending())
3660 	    {
3661 # ifdef UNIX
3662 		// Give the terminal a chance to respond.
3663 		mch_delay(100L, 0);
3664 # endif
3665 # ifdef TCIFLUSH
3666 		// Discard data received but not read.
3667 		if (exiting)
3668 		    tcflush(fileno(stdin), TCIFLUSH);
3669 # endif
3670 	    }
3671 	    // Check for termcodes first, otherwise an external program may
3672 	    // get them.
3673 	    check_for_codes_from_term();
3674 	}
3675 #endif
3676 #ifdef FEAT_JOB_CHANNEL
3677 	ch_log_output = TRUE;
3678 #endif
3679 
3680 #if defined(UNIX) || defined(VMS)
3681 	// Disable xterm's focus reporting mode if 'esckeys' is set.
3682 	if (focus_mode && p_ek && *T_FD != NUL)
3683 	    out_str(T_FD);
3684 #endif
3685 
3686 	out_str(T_BD);			// disable bracketed paste mode
3687 	out_str(T_KE);			// stop "keypad transmit" mode
3688 	out_flush();
3689 	termcap_active = FALSE;
3690 	cursor_on();			// just in case it is still off
3691 	out_str(T_CTE);			// stop "raw" mode
3692 	out_str(T_TE);			// stop termcap mode
3693 	screen_start();			// don't know where cursor is now
3694 	out_flush();
3695     }
3696 }
3697 
3698 #if defined(FEAT_TERMRESPONSE) || defined(PROTO)
3699 /*
3700  * Request version string (for xterm) when needed.
3701  * Only do this after switching to raw mode, otherwise the result will be
3702  * echoed.
3703  * Only do this after startup has finished, to avoid that the response comes
3704  * while executing "-c !cmd" or even after "-c quit".
3705  * Only do this after termcap mode has been started, otherwise the codes for
3706  * the cursor keys may be wrong.
3707  * Only do this when 'esckeys' is on, otherwise the response causes trouble in
3708  * Insert mode.
3709  * On Unix only do it when both output and input are a tty (avoid writing
3710  * request to terminal while reading from a file).
3711  * The result is caught in check_termcode().
3712  */
3713     void
3714 may_req_termresponse(void)
3715 {
3716     if (crv_status.tr_progress == STATUS_GET
3717 	    && can_get_termresponse()
3718 	    && starting == 0
3719 	    && *T_CRV != NUL)
3720     {
3721 #ifdef FEAT_JOB_CHANNEL
3722 	ch_log_output = TRUE;
3723 #endif
3724 	LOG_TR(("Sending CRV request"));
3725 	out_str(T_CRV);
3726 	termrequest_sent(&crv_status);
3727 	// check for the characters now, otherwise they might be eaten by
3728 	// get_keystroke()
3729 	out_flush();
3730 	(void)vpeekc_nomap();
3731     }
3732 }
3733 
3734 /*
3735  * Send sequences to the terminal and check with t_u7 how the cursor moves, to
3736  * find out properties of the terminal.
3737  * Note that this goes out before T_CRV, so that the result can be used when
3738  * the termresponse arrives.
3739  */
3740     void
3741 check_terminal_behavior(void)
3742 {
3743     int	    did_send = FALSE;
3744 
3745     if (!can_get_termresponse() || starting != 0 || *T_U7 == NUL)
3746 	return;
3747 
3748     if (u7_status.tr_progress == STATUS_GET
3749 	    && !option_was_set((char_u *)"ambiwidth"))
3750     {
3751 	char_u	buf[16];
3752 
3753 	// Ambiguous width check.
3754 	// Check how the terminal treats ambiguous character width (UAX #11).
3755 	// First, we move the cursor to (1, 0) and print a test ambiguous
3756 	// character \u25bd (WHITE DOWN-POINTING TRIANGLE) and then query
3757 	// the current cursor position.  If the terminal treats \u25bd as
3758 	// single width, the position is (1, 1), or if it is treated as double
3759 	// width, that will be (1, 2).  This function has the side effect that
3760 	// changes cursor position, so it must be called immediately after
3761 	// entering termcap mode.
3762 #ifdef FEAT_JOB_CHANNEL
3763 	ch_log_output = TRUE;
3764 #endif
3765 	LOG_TR(("Sending request for ambiwidth check"));
3766 	// Do this in the second row.  In the first row the returned sequence
3767 	// may be CSI 1;2R, which is the same as <S-F3>.
3768 	term_windgoto(1, 0);
3769 	buf[mb_char2bytes(0x25bd, buf)] = NUL;
3770 	out_str(buf);
3771 	out_str(T_U7);
3772 	termrequest_sent(&u7_status);
3773 	out_flush();
3774 	did_send = TRUE;
3775 
3776 	// This overwrites a few characters on the screen, a redraw is needed
3777 	// after this. Clear them out for now.
3778 	screen_stop_highlight();
3779 	term_windgoto(1, 0);
3780 	out_str((char_u *)"  ");
3781 	line_was_clobbered(1);
3782     }
3783 
3784     if (xcc_status.tr_progress == STATUS_GET)
3785     {
3786 	// 2. Check compatibility with xterm.
3787 	// We move the cursor to (2, 0), print a test sequence and then query
3788 	// the current cursor position.  If the terminal properly handles
3789 	// unknown DCS string and CSI sequence with intermediate byte, the test
3790 	// sequence is ignored and the cursor does not move.  If the terminal
3791 	// handles test sequence incorrectly, a garbage string is displayed and
3792 	// the cursor does move.
3793 #ifdef FEAT_JOB_CHANNEL
3794 	ch_log_output = TRUE;
3795 #endif
3796 	LOG_TR(("Sending xterm compatibility test sequence."));
3797 	// Do this in the third row.  Second row is used by ambiguous
3798 	// character width check.
3799 	term_windgoto(2, 0);
3800 	// send the test DCS string.
3801 	out_str((char_u *)"\033Pzz\033\\");
3802 	// send the test CSI sequence with intermediate byte.
3803 	out_str((char_u *)"\033[0%m");
3804 	out_str(T_U7);
3805 	termrequest_sent(&xcc_status);
3806 	out_flush();
3807 	did_send = TRUE;
3808 
3809 	// If the terminal handles test sequence incorrectly, garbage text is
3810 	// displayed. Clear them out for now.
3811 	screen_stop_highlight();
3812 	term_windgoto(2, 0);
3813 	out_str((char_u *)"           ");
3814 	line_was_clobbered(2);
3815     }
3816 
3817     if (did_send)
3818     {
3819 	term_windgoto(0, 0);
3820 
3821 	// Need to reset the known cursor position.
3822 	screen_start();
3823 
3824 	// check for the characters now, otherwise they might be eaten by
3825 	// get_keystroke()
3826 	out_flush();
3827 	(void)vpeekc_nomap();
3828     }
3829 }
3830 
3831 /*
3832  * Similar to requesting the version string: Request the terminal background
3833  * color when it is the right moment.
3834  */
3835     void
3836 may_req_bg_color(void)
3837 {
3838     if (can_get_termresponse() && starting == 0)
3839     {
3840 	int didit = FALSE;
3841 
3842 # ifdef FEAT_TERMINAL
3843 	// Only request foreground if t_RF is set.
3844 	if (rfg_status.tr_progress == STATUS_GET && *T_RFG != NUL)
3845 	{
3846 #ifdef FEAT_JOB_CHANNEL
3847 	    ch_log_output = TRUE;
3848 #endif
3849 	    LOG_TR(("Sending FG request"));
3850 	    out_str(T_RFG);
3851 	    termrequest_sent(&rfg_status);
3852 	    didit = TRUE;
3853 	}
3854 # endif
3855 
3856 	// Only request background if t_RB is set.
3857 	if (rbg_status.tr_progress == STATUS_GET && *T_RBG != NUL)
3858 	{
3859 #ifdef FEAT_JOB_CHANNEL
3860 	    ch_log_output = TRUE;
3861 #endif
3862 	    LOG_TR(("Sending BG request"));
3863 	    out_str(T_RBG);
3864 	    termrequest_sent(&rbg_status);
3865 	    didit = TRUE;
3866 	}
3867 
3868 	if (didit)
3869 	{
3870 	    // check for the characters now, otherwise they might be eaten by
3871 	    // get_keystroke()
3872 	    out_flush();
3873 	    (void)vpeekc_nomap();
3874 	}
3875     }
3876 }
3877 
3878 # ifdef DEBUG_TERMRESPONSE
3879     static void
3880 log_tr(const char *fmt, ...)
3881 {
3882     static FILE *fd_tr = NULL;
3883     static proftime_T start;
3884     proftime_T now;
3885     va_list ap;
3886 
3887     if (fd_tr == NULL)
3888     {
3889 	fd_tr = fopen("termresponse.log", "w");
3890 	profile_start(&start);
3891     }
3892     now = start;
3893     profile_end(&now);
3894     fprintf(fd_tr, "%s: %s ", profile_msg(&now),
3895 					must_redraw == NOT_VALID ? "NV"
3896 					: must_redraw == CLEAR ? "CL" : "  ");
3897     va_start(ap, fmt);
3898     vfprintf(fd_tr, fmt, ap);
3899     va_end(ap);
3900     fputc('\n', fd_tr);
3901     fflush(fd_tr);
3902 }
3903 # endif
3904 #endif
3905 
3906 /*
3907  * Return TRUE when saving and restoring the screen.
3908  */
3909     int
3910 swapping_screen(void)
3911 {
3912     return (full_screen && *T_TI != NUL);
3913 }
3914 
3915 /*
3916  * By outputting the 'cursor very visible' termcap code, for some windowed
3917  * terminals this makes the screen scrolled to the correct position.
3918  * Used when starting Vim or returning from a shell.
3919  */
3920     void
3921 scroll_start(void)
3922 {
3923     if (*T_VS != NUL && *T_CVS != NUL)
3924     {
3925 #ifdef FEAT_JOB_CHANNEL
3926 	ch_log_output = TRUE;
3927 #endif
3928 	out_str(T_VS);
3929 	out_str(T_CVS);
3930 	screen_start();		// don't know where cursor is now
3931     }
3932 }
3933 
3934 static int cursor_is_off = FALSE;
3935 
3936 /*
3937  * Enable the cursor without checking if it's already enabled.
3938  */
3939     void
3940 cursor_on_force(void)
3941 {
3942     out_str(T_VE);
3943     cursor_is_off = FALSE;
3944 }
3945 
3946 /*
3947  * Enable the cursor if it's currently off.
3948  */
3949     void
3950 cursor_on(void)
3951 {
3952     if (cursor_is_off)
3953 	cursor_on_force();
3954 }
3955 
3956 /*
3957  * Disable the cursor.
3958  */
3959     void
3960 cursor_off(void)
3961 {
3962     if (full_screen && !cursor_is_off)
3963     {
3964 	out_str(T_VI);	    // disable cursor
3965 	cursor_is_off = TRUE;
3966     }
3967 }
3968 
3969 #if defined(CURSOR_SHAPE) || defined(PROTO)
3970 /*
3971  * Set cursor shape to match Insert or Replace mode.
3972  */
3973     void
3974 term_cursor_mode(int forced)
3975 {
3976     static int showing_mode = -1;
3977     char_u *p;
3978 
3979     // Only do something when redrawing the screen and we can restore the
3980     // mode.
3981     if (!full_screen || *T_CEI == NUL)
3982     {
3983 # ifdef FEAT_TERMRESPONSE
3984 	if (forced && initial_cursor_shape > 0)
3985 	    // Restore to initial values.
3986 	    term_cursor_shape(initial_cursor_shape, initial_cursor_blink);
3987 # endif
3988 	return;
3989     }
3990 
3991     if ((State & REPLACE) == REPLACE)
3992     {
3993 	if (forced || showing_mode != REPLACE)
3994 	{
3995 	    if (*T_CSR != NUL)
3996 		p = T_CSR;	// Replace mode cursor
3997 	    else
3998 		p = T_CSI;	// fall back to Insert mode cursor
3999 	    if (*p != NUL)
4000 	    {
4001 		out_str(p);
4002 		showing_mode = REPLACE;
4003 	    }
4004 	}
4005     }
4006     else if (State & INSERT)
4007     {
4008 	if ((forced || showing_mode != INSERT) && *T_CSI != NUL)
4009 	{
4010 	    out_str(T_CSI);	    // Insert mode cursor
4011 	    showing_mode = INSERT;
4012 	}
4013     }
4014     else if (forced || showing_mode != NORMAL)
4015     {
4016 	out_str(T_CEI);		    // non-Insert mode cursor
4017 	showing_mode = NORMAL;
4018     }
4019 }
4020 
4021 # if defined(FEAT_TERMINAL) || defined(PROTO)
4022     void
4023 term_cursor_color(char_u *color)
4024 {
4025     if (*T_CSC != NUL)
4026     {
4027 	out_str(T_CSC);		// set cursor color start
4028 	out_str_nf(color);
4029 	out_str(T_CEC);		// set cursor color end
4030 	out_flush();
4031     }
4032 }
4033 # endif
4034 
4035     int
4036 blink_state_is_inverted()
4037 {
4038 #ifdef FEAT_TERMRESPONSE
4039     return rbm_status.tr_progress == STATUS_GOT
4040 	&& rcs_status.tr_progress == STATUS_GOT
4041 		&& initial_cursor_blink != initial_cursor_shape_blink;
4042 #else
4043     return FALSE;
4044 #endif
4045 }
4046 
4047 /*
4048  * "shape": 1 = block, 2 = underline, 3 = vertical bar
4049  */
4050     void
4051 term_cursor_shape(int shape, int blink)
4052 {
4053     if (*T_CSH != NUL)
4054     {
4055 	OUT_STR(tgoto((char *)T_CSH, 0, shape * 2 - blink));
4056 	out_flush();
4057     }
4058     else
4059     {
4060 	int do_blink = blink;
4061 
4062 	// t_SH is empty: try setting just the blink state.
4063 	// The blink flags are XORed together, if the initial blinking from
4064 	// style and shape differs, we need to invert the flag here.
4065 	if (blink_state_is_inverted())
4066 	    do_blink = !blink;
4067 
4068 	if (do_blink && *T_VS != NUL)
4069 	{
4070 	    out_str(T_VS);
4071 	    out_flush();
4072 	}
4073 	else if (!do_blink && *T_CVS != NUL)
4074 	{
4075 	    out_str(T_CVS);
4076 	    out_flush();
4077 	}
4078     }
4079 }
4080 #endif
4081 
4082 /*
4083  * Set scrolling region for window 'wp'.
4084  * The region starts 'off' lines from the start of the window.
4085  * Also set the vertical scroll region for a vertically split window.  Always
4086  * the full width of the window, excluding the vertical separator.
4087  */
4088     void
4089 scroll_region_set(win_T *wp, int off)
4090 {
4091     OUT_STR(tgoto((char *)T_CS, W_WINROW(wp) + wp->w_height - 1,
4092 							 W_WINROW(wp) + off));
4093     if (*T_CSV != NUL && wp->w_width != Columns)
4094 	OUT_STR(tgoto((char *)T_CSV, wp->w_wincol + wp->w_width - 1,
4095 							       wp->w_wincol));
4096     screen_start();		    // don't know where cursor is now
4097 }
4098 
4099 /*
4100  * Reset scrolling region to the whole screen.
4101  */
4102     void
4103 scroll_region_reset(void)
4104 {
4105     OUT_STR(tgoto((char *)T_CS, (int)Rows - 1, 0));
4106     if (*T_CSV != NUL)
4107 	OUT_STR(tgoto((char *)T_CSV, (int)Columns - 1, 0));
4108     screen_start();		    // don't know where cursor is now
4109 }
4110 
4111 
4112 /*
4113  * List of terminal codes that are currently recognized.
4114  */
4115 
4116 static struct termcode
4117 {
4118     char_u  name[2];	    // termcap name of entry
4119     char_u  *code;	    // terminal code (in allocated memory)
4120     int	    len;	    // STRLEN(code)
4121     int	    modlen;	    // length of part before ";*~".
4122 } *termcodes = NULL;
4123 
4124 static int  tc_max_len = 0; // number of entries that termcodes[] can hold
4125 static int  tc_len = 0;	    // current number of entries in termcodes[]
4126 
4127 static int termcode_star(char_u *code, int len);
4128 
4129     void
4130 clear_termcodes(void)
4131 {
4132     while (tc_len > 0)
4133 	vim_free(termcodes[--tc_len].code);
4134     VIM_CLEAR(termcodes);
4135     tc_max_len = 0;
4136 
4137 #ifdef HAVE_TGETENT
4138     BC = (char *)empty_option;
4139     UP = (char *)empty_option;
4140     PC = NUL;			// set pad character to NUL
4141     ospeed = 0;
4142 #endif
4143 
4144     need_gather = TRUE;		// need to fill termleader[]
4145 }
4146 
4147 #define ATC_FROM_TERM 55
4148 
4149 /*
4150  * Add a new entry to the list of terminal codes.
4151  * The list is kept alphabetical for ":set termcap"
4152  * "flags" is TRUE when replacing 7-bit by 8-bit controls is desired.
4153  * "flags" can also be ATC_FROM_TERM for got_code_from_term().
4154  */
4155     void
4156 add_termcode(char_u *name, char_u *string, int flags)
4157 {
4158     struct termcode *new_tc;
4159     int		    i, j;
4160     char_u	    *s;
4161     int		    len;
4162 
4163     if (string == NULL || *string == NUL)
4164     {
4165 	del_termcode(name);
4166 	return;
4167     }
4168 
4169 #if defined(MSWIN) && !defined(FEAT_GUI)
4170     s = vim_strnsave(string, STRLEN(string) + 1);
4171 #else
4172 # ifdef VIMDLL
4173     if (!gui.in_use)
4174 	s = vim_strnsave(string, STRLEN(string) + 1);
4175     else
4176 # endif
4177 	s = vim_strsave(string);
4178 #endif
4179     if (s == NULL)
4180 	return;
4181 
4182     // Change leading <Esc>[ to CSI, change <Esc>O to <M-O>.
4183     if (flags != 0 && flags != ATC_FROM_TERM && term_7to8bit(string) != 0)
4184     {
4185 	STRMOVE(s, s + 1);
4186 	s[0] = term_7to8bit(string);
4187     }
4188 
4189 #if defined(MSWIN) && (!defined(FEAT_GUI) || defined(VIMDLL))
4190 # ifdef VIMDLL
4191     if (!gui.in_use)
4192 # endif
4193     {
4194 	if (s[0] == K_NUL)
4195 	{
4196 	    STRMOVE(s + 1, s);
4197 	    s[1] = 3;
4198 	}
4199     }
4200 #endif
4201 
4202     len = (int)STRLEN(s);
4203 
4204     need_gather = TRUE;		// need to fill termleader[]
4205 
4206     /*
4207      * need to make space for more entries
4208      */
4209     if (tc_len == tc_max_len)
4210     {
4211 	tc_max_len += 20;
4212 	new_tc = ALLOC_MULT(struct termcode, tc_max_len);
4213 	if (new_tc == NULL)
4214 	{
4215 	    tc_max_len -= 20;
4216 	    return;
4217 	}
4218 	for (i = 0; i < tc_len; ++i)
4219 	    new_tc[i] = termcodes[i];
4220 	vim_free(termcodes);
4221 	termcodes = new_tc;
4222     }
4223 
4224     /*
4225      * Look for existing entry with the same name, it is replaced.
4226      * Look for an existing entry that is alphabetical higher, the new entry
4227      * is inserted in front of it.
4228      */
4229     for (i = 0; i < tc_len; ++i)
4230     {
4231 	if (termcodes[i].name[0] < name[0])
4232 	    continue;
4233 	if (termcodes[i].name[0] == name[0])
4234 	{
4235 	    if (termcodes[i].name[1] < name[1])
4236 		continue;
4237 	    /*
4238 	     * Exact match: May replace old code.
4239 	     */
4240 	    if (termcodes[i].name[1] == name[1])
4241 	    {
4242 		if (flags == ATC_FROM_TERM && (j = termcode_star(
4243 				    termcodes[i].code, termcodes[i].len)) > 0)
4244 		{
4245 		    // Don't replace ESC[123;*X or ESC O*X with another when
4246 		    // invoked from got_code_from_term().
4247 		    if (len == termcodes[i].len - j
4248 			    && STRNCMP(s, termcodes[i].code, len - 1) == 0
4249 			    && s[len - 1]
4250 				   == termcodes[i].code[termcodes[i].len - 1])
4251 		    {
4252 			// They are equal but for the ";*": don't add it.
4253 			vim_free(s);
4254 			return;
4255 		    }
4256 		}
4257 		else
4258 		{
4259 		    // Replace old code.
4260 		    vim_free(termcodes[i].code);
4261 		    --tc_len;
4262 		    break;
4263 		}
4264 	    }
4265 	}
4266 	/*
4267 	 * Found alphabetical larger entry, move rest to insert new entry
4268 	 */
4269 	for (j = tc_len; j > i; --j)
4270 	    termcodes[j] = termcodes[j - 1];
4271 	break;
4272     }
4273 
4274     termcodes[i].name[0] = name[0];
4275     termcodes[i].name[1] = name[1];
4276     termcodes[i].code = s;
4277     termcodes[i].len = len;
4278 
4279     // For xterm we recognize special codes like "ESC[42;*X" and "ESC O*X" that
4280     // accept modifiers.
4281     termcodes[i].modlen = 0;
4282     j = termcode_star(s, len);
4283     if (j > 0)
4284     {
4285 	termcodes[i].modlen = len - 1 - j;
4286 	// For "CSI[@;X" the "@" is not included in "modlen".
4287 	if (termcodes[i].code[termcodes[i].modlen - 1] == '@')
4288 	    --termcodes[i].modlen;
4289     }
4290     ++tc_len;
4291 }
4292 
4293 /*
4294  * Check termcode "code[len]" for ending in ;*X or *X.
4295  * The "X" can be any character.
4296  * Return 0 if not found, 2 for ;*X and 1 for *X.
4297  */
4298     static int
4299 termcode_star(char_u *code, int len)
4300 {
4301     // Shortest is <M-O>*X.  With ; shortest is <CSI>@;*X
4302     if (len >= 3 && code[len - 2] == '*')
4303     {
4304 	if (len >= 5 && code[len - 3] == ';')
4305 	    return 2;
4306 	else
4307 	    return 1;
4308     }
4309     return 0;
4310 }
4311 
4312     char_u  *
4313 find_termcode(char_u *name)
4314 {
4315     int	    i;
4316 
4317     for (i = 0; i < tc_len; ++i)
4318 	if (termcodes[i].name[0] == name[0] && termcodes[i].name[1] == name[1])
4319 	    return termcodes[i].code;
4320     return NULL;
4321 }
4322 
4323     char_u *
4324 get_termcode(int i)
4325 {
4326     if (i >= tc_len)
4327 	return NULL;
4328     return &termcodes[i].name[0];
4329 }
4330 
4331 /*
4332  * Returns the length of the terminal code at index 'idx'.
4333  */
4334     int
4335 get_termcode_len(int idx)
4336 {
4337     return termcodes[idx].len;
4338 }
4339 
4340     void
4341 del_termcode(char_u *name)
4342 {
4343     int	    i;
4344 
4345     if (termcodes == NULL)	// nothing there yet
4346 	return;
4347 
4348     need_gather = TRUE;		// need to fill termleader[]
4349 
4350     for (i = 0; i < tc_len; ++i)
4351 	if (termcodes[i].name[0] == name[0] && termcodes[i].name[1] == name[1])
4352 	{
4353 	    del_termcode_idx(i);
4354 	    return;
4355 	}
4356     // not found. Give error message?
4357 }
4358 
4359     static void
4360 del_termcode_idx(int idx)
4361 {
4362     int		i;
4363 
4364     vim_free(termcodes[idx].code);
4365     --tc_len;
4366     for (i = idx; i < tc_len; ++i)
4367 	termcodes[i] = termcodes[i + 1];
4368 }
4369 
4370 #ifdef FEAT_TERMRESPONSE
4371 /*
4372  * Called when detected that the terminal sends 8-bit codes.
4373  * Convert all 7-bit codes to their 8-bit equivalent.
4374  */
4375     static void
4376 switch_to_8bit(void)
4377 {
4378     int		i;
4379     int		c;
4380 
4381     // Only need to do something when not already using 8-bit codes.
4382     if (!term_is_8bit(T_NAME))
4383     {
4384 	for (i = 0; i < tc_len; ++i)
4385 	{
4386 	    c = term_7to8bit(termcodes[i].code);
4387 	    if (c != 0)
4388 	    {
4389 		STRMOVE(termcodes[i].code + 1, termcodes[i].code + 2);
4390 		termcodes[i].code[0] = c;
4391 	    }
4392 	}
4393 	need_gather = TRUE;		// need to fill termleader[]
4394     }
4395     detected_8bit = TRUE;
4396     LOG_TR(("Switching to 8 bit"));
4397 }
4398 #endif
4399 
4400 #ifdef CHECK_DOUBLE_CLICK
4401 static linenr_T orig_topline = 0;
4402 # ifdef FEAT_DIFF
4403 static int orig_topfill = 0;
4404 # endif
4405 #endif
4406 #if defined(CHECK_DOUBLE_CLICK) || defined(PROTO)
4407 /*
4408  * Checking for double clicks ourselves.
4409  * "orig_topline" is used to avoid detecting a double-click when the window
4410  * contents scrolled (e.g., when 'scrolloff' is non-zero).
4411  */
4412 /*
4413  * Set orig_topline.  Used when jumping to another window, so that a double
4414  * click still works.
4415  */
4416     void
4417 set_mouse_topline(win_T *wp)
4418 {
4419     orig_topline = wp->w_topline;
4420 # ifdef FEAT_DIFF
4421     orig_topfill = wp->w_topfill;
4422 # endif
4423 }
4424 
4425 /*
4426  * Returns TRUE if the top line and top fill of window 'wp' matches the saved
4427  * topline and topfill.
4428  */
4429     int
4430 is_mouse_topline(win_T *wp)
4431 {
4432     return orig_topline == wp->w_topline
4433 #ifdef FEAT_DIFF
4434 	&& orig_topfill == wp->w_topfill
4435 #endif
4436 	;
4437 }
4438 #endif
4439 
4440 /*
4441  * Put "string[new_slen]" in typebuf, or in "buf[bufsize]" if "buf" is not NULL.
4442  * Remove "slen" bytes.
4443  * Returns FAIL for error.
4444  */
4445     int
4446 put_string_in_typebuf(
4447 	int	offset,
4448 	int	slen,
4449 	char_u	*string,
4450 	int	new_slen,
4451 	char_u	*buf,
4452 	int	bufsize,
4453 	int	*buflen)
4454 {
4455     int		extra = new_slen - slen;
4456 
4457     string[new_slen] = NUL;
4458     if (buf == NULL)
4459     {
4460 	if (extra < 0)
4461 	    // remove matched chars, taking care of noremap
4462 	    del_typebuf(-extra, offset);
4463 	else if (extra > 0)
4464 	    // insert the extra space we need
4465 	    ins_typebuf(string + slen, REMAP_YES, offset, FALSE, FALSE);
4466 
4467 	// Careful: del_typebuf() and ins_typebuf() may have reallocated
4468 	// typebuf.tb_buf[]!
4469 	mch_memmove(typebuf.tb_buf + typebuf.tb_off + offset, string,
4470 							     (size_t)new_slen);
4471     }
4472     else
4473     {
4474 	if (extra < 0)
4475 	    // remove matched characters
4476 	    mch_memmove(buf + offset, buf + offset - extra,
4477 					   (size_t)(*buflen + offset + extra));
4478 	else if (extra > 0)
4479 	{
4480 	    // Insert the extra space we need.  If there is insufficient
4481 	    // space return -1.
4482 	    if (*buflen + extra + new_slen >= bufsize)
4483 		return FAIL;
4484 	    mch_memmove(buf + offset + extra, buf + offset,
4485 						   (size_t)(*buflen - offset));
4486 	}
4487 	mch_memmove(buf + offset, string, (size_t)new_slen);
4488 	*buflen = *buflen + extra + new_slen;
4489     }
4490     return OK;
4491 }
4492 
4493 /*
4494  * Decode a modifier number as xterm provides it into MOD_MASK bits.
4495  */
4496     int
4497 decode_modifiers(int n)
4498 {
4499     int	    code = n - 1;
4500     int	    modifiers = 0;
4501 
4502     if (code & 1)
4503 	modifiers |= MOD_MASK_SHIFT;
4504     if (code & 2)
4505 	modifiers |= MOD_MASK_ALT;
4506     if (code & 4)
4507 	modifiers |= MOD_MASK_CTRL;
4508     if (code & 8)
4509 	modifiers |= MOD_MASK_META;
4510     return modifiers;
4511 }
4512 
4513     static int
4514 modifiers2keycode(int modifiers, int *key, char_u *string)
4515 {
4516     int new_slen = 0;
4517 
4518     if (modifiers != 0)
4519     {
4520 	// Some keys have the modifier included.  Need to handle that here to
4521 	// make mappings work.  This may result in a special key, such as
4522 	// K_S_TAB.
4523 	*key = simplify_key(*key, &modifiers);
4524 	if (modifiers != 0)
4525 	{
4526 	    string[new_slen++] = K_SPECIAL;
4527 	    string[new_slen++] = (int)KS_MODIFIER;
4528 	    string[new_slen++] = modifiers;
4529 	}
4530     }
4531     return new_slen;
4532 }
4533 
4534 #ifdef FEAT_TERMRESPONSE
4535 /*
4536  * Handle a cursor position report.
4537  */
4538     static void
4539 handle_u7_response(int *arg, char_u *tp UNUSED, int csi_len UNUSED)
4540 {
4541     if (arg[0] == 2 && arg[1] >= 2)
4542     {
4543 	char *aw = NULL;
4544 
4545 	LOG_TR(("Received U7 status: %s", tp));
4546 	u7_status.tr_progress = STATUS_GOT;
4547 	did_cursorhold = TRUE;
4548 	if (arg[1] == 2)
4549 	    aw = "single";
4550 	else if (arg[1] == 3)
4551 	    aw = "double";
4552 	if (aw != NULL && STRCMP(aw, p_ambw) != 0)
4553 	{
4554 	    // Setting the option causes a screen redraw. Do
4555 	    // that right away if possible, keeping any
4556 	    // messages.
4557 	    set_option_value((char_u *)"ambw", 0L, (char_u *)aw, 0);
4558 # ifdef DEBUG_TERMRESPONSE
4559 	    {
4560 		int r = redraw_asap(CLEAR);
4561 
4562 		log_tr("set 'ambiwidth', redraw_asap(): %d", r);
4563 	    }
4564 # else
4565 	    redraw_asap(CLEAR);
4566 # endif
4567 # ifdef FEAT_EVAL
4568 	    set_vim_var_string(VV_TERMU7RESP, tp, csi_len);
4569 # endif
4570 	}
4571     }
4572     else if (arg[0] == 3)
4573     {
4574 	int value;
4575 
4576 	LOG_TR(("Received compatibility test result: %s", tp));
4577 	xcc_status.tr_progress = STATUS_GOT;
4578 
4579 	// Third row: xterm compatibility test.
4580 	// If the cursor is on the first column then the terminal can handle
4581 	// the request for cursor style and blinking.
4582 	value = arg[1] == 1 ? TPR_YES : TPR_NO;
4583 	term_props[TPR_CURSOR_STYLE].tpr_status = value;
4584 	term_props[TPR_CURSOR_BLINK].tpr_status = value;
4585     }
4586 }
4587 
4588 /*
4589  * Handle a response to T_CRV: {lead}{first}{x};{vers};{y}c
4590  * Xterm and alike use '>' for {first}.
4591  * Rxvt sends "{lead}?1;2c".
4592  */
4593     static void
4594 handle_version_response(int first, int *arg, int argc, char_u *tp)
4595 {
4596     // The xterm version.  It is set to zero when it can't be an actual xterm
4597     // version.
4598     int version = arg[1];
4599 
4600     LOG_TR(("Received CRV response: %s", tp));
4601     crv_status.tr_progress = STATUS_GOT;
4602     did_cursorhold = TRUE;
4603 
4604     // Reset terminal properties that are set based on the termresponse.
4605     // Mainly useful for tests that send the termresponse multiple times.
4606     // For testing all props can be reset.
4607     init_term_props(
4608 #ifdef FEAT_EVAL
4609 	    reset_term_props_on_termresponse
4610 #else
4611 	    FALSE
4612 #endif
4613 	    );
4614 
4615     // If this code starts with CSI, you can bet that the
4616     // terminal uses 8-bit codes.
4617     if (tp[0] == CSI)
4618 	switch_to_8bit();
4619 
4620     // Screen sends 40500.
4621     // rxvt sends its version number: "20703" is 2.7.3.
4622     // Ignore it for when the user has set 'term' to xterm,
4623     // even though it's an rxvt.
4624     if (version > 20000)
4625 	version = 0;
4626 
4627     // Figure out more if the reeponse is CSI > 99 ; 99 ; 99 c
4628     if (first == '>' && argc == 3)
4629     {
4630 	int need_flush = FALSE;
4631 
4632 	// mintty 2.9.5 sends 77;20905;0c.
4633 	// (77 is ASCII 'M' for mintty.)
4634 	if (arg[0] == 77)
4635 	{
4636 	    // mintty can do SGR mouse reporting
4637 	    term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4638 	}
4639 
4640 	// If xterm version >= 141 try to get termcap codes.  For other
4641 	// terminals the request should be ignored.
4642 	if (version >= 141)
4643 	{
4644 	    LOG_TR(("Enable checking for XT codes"));
4645 	    check_for_codes = TRUE;
4646 	    need_gather = TRUE;
4647 	    req_codes_from_term();
4648 	}
4649 
4650 	// libvterm sends 0;100;0
4651 	if (version == 100 && arg[0] == 0 && arg[2] == 0)
4652 	{
4653 	    // If run from Vim $COLORS is set to the number of
4654 	    // colors the terminal supports.  Otherwise assume
4655 	    // 256, libvterm supports even more.
4656 	    if (mch_getenv((char_u *)"COLORS") == NULL)
4657 		may_adjust_color_count(256);
4658 	    // Libvterm can handle SGR mouse reporting.
4659 	    term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4660 	}
4661 
4662 	if (version == 95)
4663 	{
4664 	    // Mac Terminal.app sends 1;95;0
4665 	    if (arg[0] == 1 && arg[2] == 0)
4666 	    {
4667 		term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4668 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4669 	    }
4670 	    // iTerm2 sends 0;95;0
4671 	    else if (arg[0] == 0 && arg[2] == 0)
4672 	    {
4673 		// iTerm2 can do SGR mouse reporting
4674 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4675 	    }
4676 	    // old iTerm2 sends 0;95;
4677 	    else if (arg[0] == 0 && arg[2] == -1)
4678 		term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4679 	}
4680 
4681 	// screen sends 83;40500;0 83 is 'S' in ASCII.
4682 	if (arg[0] == 83)
4683 	{
4684 	    // screen supports SGR mouse codes since 4.7.0
4685 	    if (arg[1] >= 40700)
4686 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4687 	    else
4688 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_XTERM;
4689 	}
4690 
4691 	// If no recognized terminal has set mouse behavior, assume xterm.
4692 	if (term_props[TPR_MOUSE].tpr_status == TPR_UNKNOWN)
4693 	{
4694 	    // Xterm version 277 supports SGR.
4695 	    // Xterm version >= 95 supports mouse dragging.
4696 	    if (version >= 277)
4697 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4698 	    else if (version >= 95)
4699 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_XTERM2;
4700 	}
4701 
4702 	// Detect terminals that set $TERM to something like
4703 	// "xterm-256color" but are not fully xterm compatible.
4704 	//
4705 	// Gnome terminal sends 1;3801;0, 1;4402;0 or 1;2501;0.
4706 	// Newer Gnome-terminal sends 65;6001;1.
4707 	// xfce4-terminal sends 1;2802;0.
4708 	// screen sends 83;40500;0
4709 	// Assuming any version number over 2500 is not an
4710 	// xterm (without the limit for rxvt and screen).
4711 	if (arg[1] >= 2500)
4712 	    term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4713 
4714 	else if (version == 136 && arg[2] == 0)
4715 	{
4716 	    term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4717 
4718 	    // PuTTY sends 0;136;0
4719 	    if (arg[0] == 0)
4720 	    {
4721 		// supports sgr-like mouse reporting.
4722 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4723 	    }
4724 	    // vandyke SecureCRT sends 1;136;0
4725 	}
4726 
4727 	// Konsole sends 0;115;0
4728 	else if (version == 115 && arg[0] == 0 && arg[2] == 0)
4729 	    term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4730 
4731 	// GNU screen sends 83;30600;0, 83;40500;0, etc.
4732 	// 30600/40500 is a version number of GNU screen. DA2 support is added
4733 	// on 3.6.  DCS string has a special meaning to GNU screen, but xterm
4734 	// compatibility checking does not detect GNU screen.
4735 	if (arg[0] == 83 && arg[1] >= 30600)
4736 	{
4737 	    term_props[TPR_CURSOR_STYLE].tpr_status = TPR_NO;
4738 	    term_props[TPR_CURSOR_BLINK].tpr_status = TPR_NO;
4739 	}
4740 
4741 	// Xterm first responded to this request at patch level
4742 	// 95, so assume anything below 95 is not xterm and hopefully supports
4743 	// the underline RGB color sequence.
4744 	if (version < 95)
4745 	    term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4746 
4747 	// Getting the cursor style is only supported properly by xterm since
4748 	// version 279 (otherwise it returns 0x18).
4749 	if (version < 279)
4750 	    term_props[TPR_CURSOR_STYLE].tpr_status = TPR_NO;
4751 
4752 	/*
4753 	 * Take action on the detected properties.
4754 	 */
4755 
4756 	// Unless the underline RGB color is expected to work, disable "t_8u".
4757 	// It does not work for the real Xterm, it resets the background color.
4758 	if (term_props[TPR_UNDERLINE_RGB].tpr_status != TPR_YES && *T_8U != NUL)
4759 	    set_string_option_direct((char_u *)"t_8u", -1, (char_u *)"",
4760 								  OPT_FREE, 0);
4761 
4762 	// Only set 'ttymouse' automatically if it was not set
4763 	// by the user already.
4764 	if (!option_was_set((char_u *)"ttym")
4765 		&& (term_props[TPR_MOUSE].tpr_status == TPR_MOUSE_XTERM2
4766 		    || term_props[TPR_MOUSE].tpr_status == TPR_MOUSE_SGR))
4767 	{
4768 	    set_option_value((char_u *)"ttym", 0L,
4769 		    term_props[TPR_MOUSE].tpr_status == TPR_MOUSE_SGR
4770 				    ? (char_u *)"sgr" : (char_u *)"xterm2", 0);
4771 	}
4772 
4773 	// Only request the cursor style if t_SH and t_RS are
4774 	// set. Only supported properly by xterm since version
4775 	// 279 (otherwise it returns 0x18).
4776 	// Only when getting the cursor style was detected to work.
4777 	// Not for Terminal.app, it can't handle t_RS, it
4778 	// echoes the characters to the screen.
4779 	if (rcs_status.tr_progress == STATUS_GET
4780 		&& term_props[TPR_CURSOR_STYLE].tpr_status == TPR_YES
4781 		&& *T_CSH != NUL
4782 		&& *T_CRS != NUL)
4783 	{
4784 #ifdef FEAT_JOB_CHANNEL
4785 	    ch_log_output = TRUE;
4786 #endif
4787 	    LOG_TR(("Sending cursor style request"));
4788 	    out_str(T_CRS);
4789 	    termrequest_sent(&rcs_status);
4790 	    need_flush = TRUE;
4791 	}
4792 
4793 	// Only request the cursor blink mode if t_RC set. Not
4794 	// for Gnome terminal, it can't handle t_RC, it
4795 	// echoes the characters to the screen.
4796 	// Only when getting the cursor style was detected to work.
4797 	if (rbm_status.tr_progress == STATUS_GET
4798 		&& term_props[TPR_CURSOR_BLINK].tpr_status == TPR_YES
4799 		&& *T_CRC != NUL)
4800 	{
4801 #ifdef FEAT_JOB_CHANNEL
4802 	    ch_log_output = TRUE;
4803 #endif
4804 	    LOG_TR(("Sending cursor blink mode request"));
4805 	    out_str(T_CRC);
4806 	    termrequest_sent(&rbm_status);
4807 	    need_flush = TRUE;
4808 	}
4809 
4810 	if (need_flush)
4811 	    out_flush();
4812     }
4813 }
4814 
4815 /*
4816  * Handle a sequence with key and modifier, one of:
4817  *	{lead}27;{modifier};{key}~
4818  *	{lead}{key};{modifier}u
4819  * Returns the difference in length.
4820  */
4821     static int
4822 handle_key_with_modifier(
4823 	int	*arg,
4824 	int	trail,
4825 	int	csi_len,
4826 	int	offset,
4827 	char_u	*buf,
4828 	int	bufsize,
4829 	int	*buflen)
4830 {
4831     int	    key;
4832     int	    modifiers;
4833     int	    new_slen;
4834     char_u  string[MAX_KEY_CODE_LEN + 1];
4835 
4836     seenModifyOtherKeys = TRUE;
4837     if (trail == 'u')
4838 	key = arg[0];
4839     else
4840 	key = arg[2];
4841 
4842     modifiers = decode_modifiers(arg[1]);
4843 
4844     // Some keys need adjustment when the Ctrl modifier is used.
4845     key = may_adjust_key_for_ctrl(modifiers, key);
4846 
4847     // May remove the shift modifier if it's already included in the key.
4848     modifiers = may_remove_shift_modifier(modifiers, key);
4849 
4850     // insert modifiers with KS_MODIFIER
4851     new_slen = modifiers2keycode(modifiers, &key, string);
4852 
4853     if (IS_SPECIAL(key))
4854     {
4855 	string[new_slen++] = K_SPECIAL;
4856 	string[new_slen++] = KEY2TERMCAP0(key);
4857 	string[new_slen++] = KEY2TERMCAP1(key);
4858     }
4859     else if (has_mbyte)
4860 	new_slen += (*mb_char2bytes)(key, string + new_slen);
4861     else
4862 	string[new_slen++] = key;
4863 
4864     if (put_string_in_typebuf(offset, csi_len, string, new_slen,
4865 						 buf, bufsize, buflen) == FAIL)
4866 	return -1;
4867     return new_slen - csi_len + offset;
4868 }
4869 
4870 /*
4871  * Handle a CSI escape sequence.
4872  * - Xterm version string.
4873  *
4874  * - Cursor position report: {lead}{row};{col}R
4875  *   The final byte must be 'R'. It is used for checking the
4876  *   ambiguous-width character state.
4877  *
4878  * - window position reply: {lead}3;{x};{y}t
4879  *
4880  * - key with modifiers when modifyOtherKeys is enabled:
4881  *	    {lead}27;{modifier};{key}~
4882  *	    {lead}{key};{modifier}u
4883  * Return 0 for no match, -1 for partial match, > 0 for full match.
4884  */
4885     static int
4886 handle_csi(
4887 	char_u	*tp,
4888 	int	len,
4889 	char_u	*argp,
4890 	int	offset,
4891 	char_u  *buf,
4892 	int	bufsize,
4893 	int	*buflen,
4894 	char_u	*key_name,
4895 	int	*slen)
4896 {
4897     int		first = -1;  // optional char right after {lead}
4898     int		trail;	     // char that ends CSI sequence
4899     int		arg[3] = {-1, -1, -1};	// argument numbers
4900     int		argc;			// number of arguments
4901     char_u	*ap = argp;
4902     int		csi_len;
4903 
4904     // Check for non-digit after CSI.
4905     if (!VIM_ISDIGIT(*ap))
4906 	first = *ap++;
4907 
4908     // Find up to three argument numbers.
4909     for (argc = 0; argc < 3; )
4910     {
4911 	if (ap >= tp + len)
4912 	    return -1;
4913 	if (*ap == ';')
4914 	    arg[argc++] = -1;  // omitted number
4915 	else if (VIM_ISDIGIT(*ap))
4916 	{
4917 	    arg[argc] = 0;
4918 	    for (;;)
4919 	    {
4920 		if (ap >= tp + len)
4921 		    return -1;
4922 		if (!VIM_ISDIGIT(*ap))
4923 		    break;
4924 		arg[argc] = arg[argc] * 10 + (*ap - '0');
4925 		++ap;
4926 	    }
4927 	    ++argc;
4928 	}
4929 	if (*ap == ';')
4930 	    ++ap;
4931 	else
4932 	    break;
4933     }
4934 
4935     // mrxvt has been reported to have "+" in the version. Assume
4936     // the escape sequence ends with a letter or one of "{|}~".
4937     while (ap < tp + len
4938 	    && !(*ap >= '{' && *ap <= '~')
4939 	    && !ASCII_ISALPHA(*ap))
4940 	++ap;
4941     if (ap >= tp + len)
4942 	return -1;
4943     trail = *ap;
4944     csi_len = (int)(ap - tp) + 1;
4945 
4946     // Cursor position report: Eat it when there are 2 arguments
4947     // and it ends in 'R'. Also when u7_status is not "sent", it
4948     // may be from a previous Vim that just exited.  But not for
4949     // <S-F3>, it sends something similar, check for row and column
4950     // to make sense.
4951     if (first == -1 && argc == 2 && trail == 'R')
4952     {
4953 	handle_u7_response(arg, tp, csi_len);
4954 
4955 	key_name[0] = (int)KS_EXTRA;
4956 	key_name[1] = (int)KE_IGNORE;
4957 	*slen = csi_len;
4958     }
4959 
4960     // Version string: Eat it when there is at least one digit and
4961     // it ends in 'c'
4962     else if (*T_CRV != NUL && ap > argp + 1 && trail == 'c')
4963     {
4964 	handle_version_response(first, arg, argc, tp);
4965 
4966 	*slen = csi_len;
4967 # ifdef FEAT_EVAL
4968 	set_vim_var_string(VV_TERMRESPONSE, tp, *slen);
4969 # endif
4970 	apply_autocmds(EVENT_TERMRESPONSE,
4971 					NULL, NULL, FALSE, curbuf);
4972 	key_name[0] = (int)KS_EXTRA;
4973 	key_name[1] = (int)KE_IGNORE;
4974     }
4975 
4976     // Check blinking cursor from xterm:
4977     // {lead}?12;1$y       set
4978     // {lead}?12;2$y       not set
4979     //
4980     // {lead} can be <Esc>[ or CSI
4981     else if (rbm_status.tr_progress == STATUS_SENT
4982 	    && first == '?'
4983 	    && ap == argp + 6
4984 	    && arg[0] == 12
4985 	    && ap[-1] == '$'
4986 	    && trail == 'y')
4987     {
4988 	initial_cursor_blink = (arg[1] == '1');
4989 	rbm_status.tr_progress = STATUS_GOT;
4990 	LOG_TR(("Received cursor blinking mode response: %s", tp));
4991 	key_name[0] = (int)KS_EXTRA;
4992 	key_name[1] = (int)KE_IGNORE;
4993 	*slen = csi_len;
4994 # ifdef FEAT_EVAL
4995 	set_vim_var_string(VV_TERMBLINKRESP, tp, *slen);
4996 # endif
4997     }
4998 
4999     // Check for a window position response from the terminal:
5000     //       {lead}3;{x};{y}t
5001     else if (did_request_winpos && argc == 3 && arg[0] == 3
5002 						   && trail == 't')
5003     {
5004 	winpos_x = arg[1];
5005 	winpos_y = arg[2];
5006 	// got finished code: consume it
5007 	key_name[0] = (int)KS_EXTRA;
5008 	key_name[1] = (int)KE_IGNORE;
5009 	*slen = csi_len;
5010 
5011 	if (--did_request_winpos <= 0)
5012 	    winpos_status.tr_progress = STATUS_GOT;
5013     }
5014 
5015     // Key with modifier:
5016     //	{lead}27;{modifier};{key}~
5017     //	{lead}{key};{modifier}u
5018     else if ((arg[0] == 27 && argc == 3 && trail == '~')
5019 	    || (argc == 2 && trail == 'u'))
5020     {
5021 	return len + handle_key_with_modifier(arg, trail,
5022 			    csi_len, offset, buf, bufsize, buflen);
5023     }
5024 
5025     // else: Unknown CSI sequence.  We could drop it, but then the
5026     // user can't create a map for it.
5027     return 0;
5028 }
5029 
5030 /*
5031  * Handle an OSC sequence, fore/background color response from the terminal:
5032  *
5033  *       {lead}{code};rgb:{rrrr}/{gggg}/{bbbb}{tail}
5034  * or    {lead}{code};rgb:{rr}/{gg}/{bb}{tail}
5035  *
5036  * {code} is 10 for foreground, 11 for background
5037  * {lead} can be <Esc>] or OSC
5038  * {tail} can be '\007', <Esc>\ or STERM.
5039  *
5040  * Consume any code that starts with "{lead}11;", it's also
5041  * possible that "rgba" is following.
5042  */
5043     static int
5044 handle_osc(char_u *tp, char_u *argp, int len, char_u *key_name, int *slen)
5045 {
5046     int		i, j;
5047 
5048     j = 1 + (tp[0] == ESC);
5049     if (len >= j + 3 && (argp[0] != '1'
5050 			     || (argp[1] != '1' && argp[1] != '0')
5051 			     || argp[2] != ';'))
5052 	i = 0; // no match
5053     else
5054 	for (i = j; i < len; ++i)
5055 	    if (tp[i] == '\007' || (tp[0] == OSC ? tp[i] == STERM
5056 			: (tp[i] == ESC && i + 1 < len && tp[i + 1] == '\\')))
5057 	    {
5058 		int is_bg = argp[1] == '1';
5059 		int is_4digit = i - j >= 21 && tp[j + 11] == '/'
5060 						  && tp[j + 16] == '/';
5061 
5062 		if (i - j >= 15 && STRNCMP(tp + j + 3, "rgb:", 4) == 0
5063 			    && (is_4digit
5064 				   || (tp[j + 9] == '/' && tp[i + 12 == '/'])))
5065 		{
5066 		    char_u *tp_r = tp + j + 7;
5067 		    char_u *tp_g = tp + j + (is_4digit ? 12 : 10);
5068 		    char_u *tp_b = tp + j + (is_4digit ? 17 : 13);
5069 # ifdef FEAT_TERMINAL
5070 		    int rval, gval, bval;
5071 
5072 		    rval = hexhex2nr(tp_r);
5073 		    gval = hexhex2nr(tp_b);
5074 		    bval = hexhex2nr(tp_g);
5075 # endif
5076 		    if (is_bg)
5077 		    {
5078 			char *new_bg_val = (3 * '6' < *tp_r + *tp_g +
5079 					     *tp_b) ? "light" : "dark";
5080 
5081 			LOG_TR(("Received RBG response: %s", tp));
5082 			rbg_status.tr_progress = STATUS_GOT;
5083 # ifdef FEAT_TERMINAL
5084 			bg_r = rval;
5085 			bg_g = gval;
5086 			bg_b = bval;
5087 # endif
5088 			if (!option_was_set((char_u *)"bg")
5089 				      && STRCMP(p_bg, new_bg_val) != 0)
5090 			{
5091 			    // value differs, apply it
5092 			    set_option_value((char_u *)"bg", 0L,
5093 					      (char_u *)new_bg_val, 0);
5094 			    reset_option_was_set((char_u *)"bg");
5095 			    redraw_asap(CLEAR);
5096 			}
5097 		    }
5098 # ifdef FEAT_TERMINAL
5099 		    else
5100 		    {
5101 			LOG_TR(("Received RFG response: %s", tp));
5102 			rfg_status.tr_progress = STATUS_GOT;
5103 			fg_r = rval;
5104 			fg_g = gval;
5105 			fg_b = bval;
5106 		    }
5107 # endif
5108 		}
5109 
5110 		// got finished code: consume it
5111 		key_name[0] = (int)KS_EXTRA;
5112 		key_name[1] = (int)KE_IGNORE;
5113 		*slen = i + 1 + (tp[i] == ESC);
5114 # ifdef FEAT_EVAL
5115 		set_vim_var_string(is_bg ? VV_TERMRBGRESP
5116 						  : VV_TERMRFGRESP, tp, *slen);
5117 # endif
5118 		break;
5119 	    }
5120     if (i == len)
5121     {
5122 	LOG_TR(("not enough characters for RB"));
5123 	return FAIL;
5124     }
5125     return OK;
5126 }
5127 
5128 /*
5129  * Check for key code response from xterm:
5130  * {lead}{flag}+r<hex bytes><{tail}
5131  *
5132  * {lead} can be <Esc>P or DCS
5133  * {flag} can be '0' or '1'
5134  * {tail} can be Esc>\ or STERM
5135  *
5136  * Check for cursor shape response from xterm:
5137  * {lead}1$r<digit> q{tail}
5138  *
5139  * {lead} can be <Esc>P or DCS
5140  * {tail} can be <Esc>\ or STERM
5141  *
5142  * Consume any code that starts with "{lead}.+r" or "{lead}.$r".
5143  */
5144     static int
5145 handle_dcs(char_u *tp, char_u *argp, int len, char_u *key_name, int *slen)
5146 {
5147     int i, j;
5148 
5149     j = 1 + (tp[0] == ESC);
5150     if (len < j + 3)
5151 	i = len; // need more chars
5152     else if ((argp[1] != '+' && argp[1] != '$') || argp[2] != 'r')
5153 	i = 0; // no match
5154     else if (argp[1] == '+')
5155 	// key code response
5156 	for (i = j; i < len; ++i)
5157 	{
5158 	    if ((tp[i] == ESC && i + 1 < len && tp[i + 1] == '\\')
5159 		    || tp[i] == STERM)
5160 	    {
5161 		if (i - j >= 3)
5162 		    got_code_from_term(tp + j, i);
5163 		key_name[0] = (int)KS_EXTRA;
5164 		key_name[1] = (int)KE_IGNORE;
5165 		*slen = i + 1 + (tp[i] == ESC);
5166 		break;
5167 	    }
5168 	}
5169     else
5170     {
5171 	// Probably the cursor shape response.  Make sure that "i"
5172 	// is equal to "len" when there are not sufficient
5173 	// characters.
5174 	for (i = j + 3; i < len; ++i)
5175 	{
5176 	    if (i - j == 3 && !isdigit(tp[i]))
5177 		break;
5178 	    if (i - j == 4 && tp[i] != ' ')
5179 		break;
5180 	    if (i - j == 5 && tp[i] != 'q')
5181 		break;
5182 	    if (i - j == 6 && tp[i] != ESC && tp[i] != STERM)
5183 		break;
5184 	    if ((i - j == 6 && tp[i] == STERM)
5185 	     || (i - j == 7 && tp[i] == '\\'))
5186 	    {
5187 		int number = argp[3] - '0';
5188 
5189 		// 0, 1 = block blink, 2 = block
5190 		// 3 = underline blink, 4 = underline
5191 		// 5 = vertical bar blink, 6 = vertical bar
5192 		number = number == 0 ? 1 : number;
5193 		initial_cursor_shape = (number + 1) / 2;
5194 		// The blink flag is actually inverted, compared to
5195 		// the value set with T_SH.
5196 		initial_cursor_shape_blink =
5197 				       (number & 1) ? FALSE : TRUE;
5198 		rcs_status.tr_progress = STATUS_GOT;
5199 		LOG_TR(("Received cursor shape response: %s", tp));
5200 
5201 		key_name[0] = (int)KS_EXTRA;
5202 		key_name[1] = (int)KE_IGNORE;
5203 		*slen = i + 1;
5204 # ifdef FEAT_EVAL
5205 		set_vim_var_string(VV_TERMSTYLERESP, tp, *slen);
5206 # endif
5207 		break;
5208 	    }
5209 	}
5210     }
5211 
5212     if (i == len)
5213     {
5214 	// These codes arrive many together, each code can be
5215 	// truncated at any point.
5216 	LOG_TR(("not enough characters for XT"));
5217 	return FAIL;
5218     }
5219     return OK;
5220 }
5221 #endif // FEAT_TERMRESPONSE
5222 
5223 /*
5224  * Check if typebuf.tb_buf[] contains a terminal key code.
5225  * Check from typebuf.tb_buf[typebuf.tb_off] to typebuf.tb_buf[typebuf.tb_off
5226  * + "max_offset"].
5227  * Return 0 for no match, -1 for partial match, > 0 for full match.
5228  * Return KEYLEN_REMOVED when a key code was deleted.
5229  * With a match, the match is removed, the replacement code is inserted in
5230  * typebuf.tb_buf[] and the number of characters in typebuf.tb_buf[] is
5231  * returned.
5232  * When "buf" is not NULL, buf[bufsize] is used instead of typebuf.tb_buf[].
5233  * "buflen" is then the length of the string in buf[] and is updated for
5234  * inserts and deletes.
5235  */
5236     int
5237 check_termcode(
5238     int		max_offset,
5239     char_u	*buf,
5240     int		bufsize,
5241     int		*buflen)
5242 {
5243     char_u	*tp;
5244     char_u	*p;
5245     int		slen = 0;	// init for GCC
5246     int		modslen;
5247     int		len;
5248     int		retval = 0;
5249     int		offset;
5250     char_u	key_name[2];
5251     int		modifiers;
5252     char_u	*modifiers_start = NULL;
5253     int		key;
5254     int		new_slen;   // Length of what will replace the termcode
5255     char_u	string[MAX_KEY_CODE_LEN + 1];
5256     int		i, j;
5257     int		idx = 0;
5258     int		cpo_koffset;
5259 
5260     cpo_koffset = (vim_strchr(p_cpo, CPO_KOFFSET) != NULL);
5261 
5262     /*
5263      * Speed up the checks for terminal codes by gathering all first bytes
5264      * used in termleader[].  Often this is just a single <Esc>.
5265      */
5266     if (need_gather)
5267 	gather_termleader();
5268 
5269     /*
5270      * Check at several positions in typebuf.tb_buf[], to catch something like
5271      * "x<Up>" that can be mapped. Stop at max_offset, because characters
5272      * after that cannot be used for mapping, and with @r commands
5273      * typebuf.tb_buf[] can become very long.
5274      * This is used often, KEEP IT FAST!
5275      */
5276     for (offset = 0; offset < max_offset; ++offset)
5277     {
5278 	if (buf == NULL)
5279 	{
5280 	    if (offset >= typebuf.tb_len)
5281 		break;
5282 	    tp = typebuf.tb_buf + typebuf.tb_off + offset;
5283 	    len = typebuf.tb_len - offset;	// length of the input
5284 	}
5285 	else
5286 	{
5287 	    if (offset >= *buflen)
5288 		break;
5289 	    tp = buf + offset;
5290 	    len = *buflen - offset;
5291 	}
5292 
5293 	/*
5294 	 * Don't check characters after K_SPECIAL, those are already
5295 	 * translated terminal chars (avoid translating ~@^Hx).
5296 	 */
5297 	if (*tp == K_SPECIAL)
5298 	{
5299 	    offset += 2;	// there are always 2 extra characters
5300 	    continue;
5301 	}
5302 
5303 	/*
5304 	 * Skip this position if the character does not appear as the first
5305 	 * character in term_strings. This speeds up a lot, since most
5306 	 * termcodes start with the same character (ESC or CSI).
5307 	 */
5308 	i = *tp;
5309 	for (p = termleader; *p && *p != i; ++p)
5310 	    ;
5311 	if (*p == NUL)
5312 	    continue;
5313 
5314 	/*
5315 	 * Skip this position if p_ek is not set and tp[0] is an ESC and we
5316 	 * are in Insert mode.
5317 	 */
5318 	if (*tp == ESC && !p_ek && (State & INSERT))
5319 	    continue;
5320 
5321 	key_name[0] = NUL;	// no key name found yet
5322 	key_name[1] = NUL;	// no key name found yet
5323 	modifiers = 0;		// no modifiers yet
5324 
5325 #ifdef FEAT_GUI
5326 	if (gui.in_use)
5327 	{
5328 	    /*
5329 	     * GUI special key codes are all of the form [CSI xx].
5330 	     */
5331 	    if (*tp == CSI)	    // Special key from GUI
5332 	    {
5333 		if (len < 3)
5334 		    return -1;	    // Shouldn't happen
5335 		slen = 3;
5336 		key_name[0] = tp[1];
5337 		key_name[1] = tp[2];
5338 	    }
5339 	}
5340 	else
5341 #endif // FEAT_GUI
5342 	{
5343 	    int  mouse_index_found = -1;
5344 
5345 	    for (idx = 0; idx < tc_len; ++idx)
5346 	    {
5347 		/*
5348 		 * Ignore the entry if we are not at the start of
5349 		 * typebuf.tb_buf[]
5350 		 * and there are not enough characters to make a match.
5351 		 * But only when the 'K' flag is in 'cpoptions'.
5352 		 */
5353 		slen = termcodes[idx].len;
5354 		modifiers_start = NULL;
5355 		if (cpo_koffset && offset && len < slen)
5356 		    continue;
5357 		if (STRNCMP(termcodes[idx].code, tp,
5358 				     (size_t)(slen > len ? len : slen)) == 0)
5359 		{
5360 		    if (len < slen)		// got a partial sequence
5361 			return -1;		// need to get more chars
5362 
5363 		    /*
5364 		     * When found a keypad key, check if there is another key
5365 		     * that matches and use that one.  This makes <Home> to be
5366 		     * found instead of <kHome> when they produce the same
5367 		     * key code.
5368 		     */
5369 		    if (termcodes[idx].name[0] == 'K'
5370 				       && VIM_ISDIGIT(termcodes[idx].name[1]))
5371 		    {
5372 			for (j = idx + 1; j < tc_len; ++j)
5373 			    if (termcodes[j].len == slen &&
5374 				    STRNCMP(termcodes[idx].code,
5375 					    termcodes[j].code, slen) == 0)
5376 			    {
5377 				idx = j;
5378 				break;
5379 			    }
5380 		    }
5381 
5382 		    // The mouse termcode "ESC [" is also the prefix of
5383 		    // "ESC [ I" (focus gained).  Only use it when there is
5384 		    // no other match.  Do use it when a digit is following to
5385 		    // avoid waiting for more bytes.
5386 		    if (slen == 2 && len > 2
5387 			    && termcodes[idx].code[0] == ESC
5388 			    && termcodes[idx].code[1] == '['
5389 			    && !isdigit(tp[2]))
5390 		    {
5391 			if (mouse_index_found < 0)
5392 			    mouse_index_found = idx;
5393 		    }
5394 		    else
5395 		    {
5396 			key_name[0] = termcodes[idx].name[0];
5397 			key_name[1] = termcodes[idx].name[1];
5398 			break;
5399 		    }
5400 		}
5401 
5402 		/*
5403 		 * Check for code with modifier, like xterm uses:
5404 		 * <Esc>[123;*X  (modslen == slen - 3)
5405 		 * <Esc>[@;*X    (matches <Esc>[X and <Esc>[1;9X )
5406 		 * Also <Esc>O*X and <M-O>*X (modslen == slen - 2).
5407 		 * When there is a modifier the * matches a number.
5408 		 * When there is no modifier the ;* or * is omitted.
5409 		 */
5410 		if (termcodes[idx].modlen > 0 && mouse_index_found < 0)
5411 		{
5412 		    int at_code;
5413 
5414 		    modslen = termcodes[idx].modlen;
5415 		    if (cpo_koffset && offset && len < modslen)
5416 			continue;
5417 		    at_code = termcodes[idx].code[modslen] == '@';
5418 		    if (STRNCMP(termcodes[idx].code, tp,
5419 				(size_t)(modslen > len ? len : modslen)) == 0)
5420 		    {
5421 			int	    n;
5422 
5423 			if (len <= modslen)	// got a partial sequence
5424 			    return -1;		// need to get more chars
5425 
5426 			if (tp[modslen] == termcodes[idx].code[slen - 1])
5427 			    // no modifiers
5428 			    slen = modslen + 1;
5429 			else if (tp[modslen] != ';' && modslen == slen - 3)
5430 			    // no match for "code;*X" with "code;"
5431 			    continue;
5432 			else if (at_code && tp[modslen] != '1')
5433 			    // no match for "<Esc>[@" with "<Esc>[1"
5434 			    continue;
5435 			else
5436 			{
5437 			    // Skip over the digits, the final char must
5438 			    // follow. URXVT can use a negative value, thus
5439 			    // also accept '-'.
5440 			    for (j = slen - 2; j < len && (isdigit(tp[j])
5441 				       || tp[j] == '-' || tp[j] == ';'); ++j)
5442 				;
5443 			    ++j;
5444 			    if (len < j)	// got a partial sequence
5445 				return -1;	// need to get more chars
5446 			    if (tp[j - 1] != termcodes[idx].code[slen - 1])
5447 				continue;	// no match
5448 
5449 			    modifiers_start = tp + slen - 2;
5450 
5451 			    // Match!  Convert modifier bits.
5452 			    n = atoi((char *)modifiers_start);
5453 			    modifiers |= decode_modifiers(n);
5454 
5455 			    slen = j;
5456 			}
5457 			key_name[0] = termcodes[idx].name[0];
5458 			key_name[1] = termcodes[idx].name[1];
5459 			break;
5460 		    }
5461 		}
5462 	    }
5463 	    if (idx == tc_len && mouse_index_found >= 0)
5464 	    {
5465 		key_name[0] = termcodes[mouse_index_found].name[0];
5466 		key_name[1] = termcodes[mouse_index_found].name[1];
5467 	    }
5468 	}
5469 
5470 #ifdef FEAT_TERMRESPONSE
5471 	if (key_name[0] == NUL
5472 	    // Mouse codes of DEC and pterm start with <ESC>[.  When
5473 	    // detecting the start of these mouse codes they might as well be
5474 	    // another key code or terminal response.
5475 # ifdef FEAT_MOUSE_DEC
5476 	    || key_name[0] == KS_DEC_MOUSE
5477 # endif
5478 # ifdef FEAT_MOUSE_PTERM
5479 	    || key_name[0] == KS_PTERM_MOUSE
5480 # endif
5481 	   )
5482 	{
5483 	    char_u *argp = tp[0] == ESC ? tp + 2 : tp + 1;
5484 
5485 	    /*
5486 	     * Check for responses from the terminal starting with {lead}:
5487 	     * "<Esc>[" or CSI followed by [0-9>?]
5488 	     *
5489 	     * - Xterm version string: {lead}>{x};{vers};{y}c
5490 	     *   Also eat other possible responses to t_RV, rxvt returns
5491 	     *   "{lead}?1;2c".
5492 	     *
5493 	     * - Cursor position report: {lead}{row};{col}R
5494 	     *   The final byte must be 'R'. It is used for checking the
5495 	     *   ambiguous-width character state.
5496 	     *
5497 	     * - window position reply: {lead}3;{x};{y}t
5498 	     *
5499 	     * - key with modifiers when modifyOtherKeys is enabled:
5500 	     *	    {lead}27;{modifier};{key}~
5501 	     *	    {lead}{key};{modifier}u
5502 	     */
5503 	    if (((tp[0] == ESC && len >= 3 && tp[1] == '[')
5504 			    || (tp[0] == CSI && len >= 2))
5505 		    && (VIM_ISDIGIT(*argp) || *argp == '>' || *argp == '?'))
5506 	    {
5507 		int resp = handle_csi(tp, len, argp, offset, buf,
5508 					     bufsize, buflen, key_name, &slen);
5509 		if (resp != 0)
5510 		{
5511 # ifdef DEBUG_TERMRESPONSE
5512 		    if (resp == -1)
5513 			LOG_TR(("Not enough characters for CSI sequence"));
5514 # endif
5515 		    return resp;
5516 		}
5517 	    }
5518 
5519 	    // Check for fore/background color response from the terminal,
5520 	    // starting} with <Esc>] or OSC
5521 	    else if ((*T_RBG != NUL || *T_RFG != NUL)
5522 			&& ((tp[0] == ESC && len >= 2 && tp[1] == ']')
5523 			    || tp[0] == OSC))
5524 	    {
5525 		if (handle_osc(tp, argp, len, key_name, &slen) == FAIL)
5526 		    return -1;
5527 	    }
5528 
5529 	    // Check for key code response from xterm,
5530 	    // starting with <Esc>P or DCS
5531 	    else if ((check_for_codes || rcs_status.tr_progress == STATUS_SENT)
5532 		    && ((tp[0] == ESC && len >= 2 && tp[1] == 'P')
5533 			|| tp[0] == DCS))
5534 	    {
5535 		if (handle_dcs(tp, argp, len, key_name, &slen) == FAIL)
5536 		    return -1;
5537 	    }
5538 	}
5539 #endif
5540 
5541 	if (key_name[0] == NUL)
5542 	    continue;	    // No match at this position, try next one
5543 
5544 	// We only get here when we have a complete termcode match
5545 
5546 #ifdef FEAT_GUI
5547 	/*
5548 	 * Only in the GUI: Fetch the pointer coordinates of the scroll event
5549 	 * so that we know which window to scroll later.
5550 	 */
5551 	if (gui.in_use
5552 		&& key_name[0] == (int)KS_EXTRA
5553 		&& (key_name[1] == (int)KE_X1MOUSE
5554 		    || key_name[1] == (int)KE_X2MOUSE
5555 		    || key_name[1] == (int)KE_MOUSELEFT
5556 		    || key_name[1] == (int)KE_MOUSERIGHT
5557 		    || key_name[1] == (int)KE_MOUSEDOWN
5558 		    || key_name[1] == (int)KE_MOUSEUP))
5559 	{
5560 	    char_u	bytes[6];
5561 	    int		num_bytes = get_bytes_from_buf(tp + slen, bytes, 4);
5562 
5563 	    if (num_bytes == -1)	// not enough coordinates
5564 		return -1;
5565 	    mouse_col = 128 * (bytes[0] - ' ' - 1) + bytes[1] - ' ' - 1;
5566 	    mouse_row = 128 * (bytes[2] - ' ' - 1) + bytes[3] - ' ' - 1;
5567 	    slen += num_bytes;
5568 	}
5569 	else
5570 #endif
5571 	/*
5572 	 * If it is a mouse click, get the coordinates.
5573 	 */
5574 	if (key_name[0] == KS_MOUSE
5575 #ifdef FEAT_MOUSE_GPM
5576 		|| key_name[0] == KS_GPM_MOUSE
5577 #endif
5578 #ifdef FEAT_MOUSE_JSB
5579 		|| key_name[0] == KS_JSBTERM_MOUSE
5580 #endif
5581 #ifdef FEAT_MOUSE_NET
5582 		|| key_name[0] == KS_NETTERM_MOUSE
5583 #endif
5584 #ifdef FEAT_MOUSE_DEC
5585 		|| key_name[0] == KS_DEC_MOUSE
5586 #endif
5587 #ifdef FEAT_MOUSE_PTERM
5588 		|| key_name[0] == KS_PTERM_MOUSE
5589 #endif
5590 #ifdef FEAT_MOUSE_URXVT
5591 		|| key_name[0] == KS_URXVT_MOUSE
5592 #endif
5593 		|| key_name[0] == KS_SGR_MOUSE
5594 		|| key_name[0] == KS_SGR_MOUSE_RELEASE)
5595 	{
5596 	    if (check_termcode_mouse(tp, &slen, key_name, modifiers_start, idx,
5597 							     &modifiers) == -1)
5598 		return -1;
5599 	}
5600 
5601 #ifdef FEAT_GUI
5602 	/*
5603 	 * If using the GUI, then we get menu and scrollbar events.
5604 	 *
5605 	 * A menu event is encoded as K_SPECIAL, KS_MENU, KE_FILLER followed by
5606 	 * four bytes which are to be taken as a pointer to the vimmenu_T
5607 	 * structure.
5608 	 *
5609 	 * A tab line event is encoded as K_SPECIAL KS_TABLINE nr, where "nr"
5610 	 * is one byte with the tab index.
5611 	 *
5612 	 * A scrollbar event is K_SPECIAL, KS_VER_SCROLLBAR, KE_FILLER followed
5613 	 * by one byte representing the scrollbar number, and then four bytes
5614 	 * representing a long_u which is the new value of the scrollbar.
5615 	 *
5616 	 * A horizontal scrollbar event is K_SPECIAL, KS_HOR_SCROLLBAR,
5617 	 * KE_FILLER followed by four bytes representing a long_u which is the
5618 	 * new value of the scrollbar.
5619 	 */
5620 # ifdef FEAT_MENU
5621 	else if (key_name[0] == (int)KS_MENU)
5622 	{
5623 	    long_u	val;
5624 	    int		num_bytes = get_long_from_buf(tp + slen, &val);
5625 
5626 	    if (num_bytes == -1)
5627 		return -1;
5628 	    current_menu = (vimmenu_T *)val;
5629 	    slen += num_bytes;
5630 
5631 	    // The menu may have been deleted right after it was used, check
5632 	    // for that.
5633 	    if (check_menu_pointer(root_menu, current_menu) == FAIL)
5634 	    {
5635 		key_name[0] = KS_EXTRA;
5636 		key_name[1] = (int)KE_IGNORE;
5637 	    }
5638 	}
5639 # endif
5640 # ifdef FEAT_GUI_TABLINE
5641 	else if (key_name[0] == (int)KS_TABLINE)
5642 	{
5643 	    // Selecting tabline tab or using its menu.
5644 	    char_u	bytes[6];
5645 	    int		num_bytes = get_bytes_from_buf(tp + slen, bytes, 1);
5646 
5647 	    if (num_bytes == -1)
5648 		return -1;
5649 	    current_tab = (int)bytes[0];
5650 	    if (current_tab == 255)	// -1 in a byte gives 255
5651 		current_tab = -1;
5652 	    slen += num_bytes;
5653 	}
5654 	else if (key_name[0] == (int)KS_TABMENU)
5655 	{
5656 	    // Selecting tabline tab or using its menu.
5657 	    char_u	bytes[6];
5658 	    int		num_bytes = get_bytes_from_buf(tp + slen, bytes, 2);
5659 
5660 	    if (num_bytes == -1)
5661 		return -1;
5662 	    current_tab = (int)bytes[0];
5663 	    current_tabmenu = (int)bytes[1];
5664 	    slen += num_bytes;
5665 	}
5666 # endif
5667 # ifndef USE_ON_FLY_SCROLL
5668 	else if (key_name[0] == (int)KS_VER_SCROLLBAR)
5669 	{
5670 	    long_u	val;
5671 	    char_u	bytes[6];
5672 	    int		num_bytes;
5673 
5674 	    // Get the last scrollbar event in the queue of the same type
5675 	    j = 0;
5676 	    for (i = 0; tp[j] == CSI && tp[j + 1] == KS_VER_SCROLLBAR
5677 						     && tp[j + 2] != NUL; ++i)
5678 	    {
5679 		j += 3;
5680 		num_bytes = get_bytes_from_buf(tp + j, bytes, 1);
5681 		if (num_bytes == -1)
5682 		    break;
5683 		if (i == 0)
5684 		    current_scrollbar = (int)bytes[0];
5685 		else if (current_scrollbar != (int)bytes[0])
5686 		    break;
5687 		j += num_bytes;
5688 		num_bytes = get_long_from_buf(tp + j, &val);
5689 		if (num_bytes == -1)
5690 		    break;
5691 		scrollbar_value = val;
5692 		j += num_bytes;
5693 		slen = j;
5694 	    }
5695 	    if (i == 0)		// not enough characters to make one
5696 		return -1;
5697 	}
5698 	else if (key_name[0] == (int)KS_HOR_SCROLLBAR)
5699 	{
5700 	    long_u	val;
5701 	    int		num_bytes;
5702 
5703 	    // Get the last horiz. scrollbar event in the queue
5704 	    j = 0;
5705 	    for (i = 0; tp[j] == CSI && tp[j + 1] == KS_HOR_SCROLLBAR
5706 						     && tp[j + 2] != NUL; ++i)
5707 	    {
5708 		j += 3;
5709 		num_bytes = get_long_from_buf(tp + j, &val);
5710 		if (num_bytes == -1)
5711 		    break;
5712 		scrollbar_value = val;
5713 		j += num_bytes;
5714 		slen = j;
5715 	    }
5716 	    if (i == 0)		// not enough characters to make one
5717 		return -1;
5718 	}
5719 # endif // !USE_ON_FLY_SCROLL
5720 #endif // FEAT_GUI
5721 
5722 #if (defined(UNIX) || defined(VMS))
5723 	/*
5724 	 * Handle FocusIn/FocusOut event sequences reported by XTerm.
5725 	 * (CSI I/CSI O)
5726 	 */
5727 	if (focus_mode
5728 # ifdef FEAT_GUI
5729 		&& !gui.in_use
5730 # endif
5731 		&& key_name[0] == KS_EXTRA
5732 	    )
5733 	{
5734 	    if (key_name[1] == KE_FOCUSGAINED)
5735 	    {
5736 		if (!focus_state)
5737 		{
5738 		    ui_focus_change(TRUE);
5739 		    did_cursorhold = TRUE;
5740 		    focus_state = TRUE;
5741 		}
5742 		key_name[1] = (int)KE_IGNORE;
5743 	    }
5744 	    else if (key_name[1] == KE_FOCUSLOST)
5745 	    {
5746 		if (focus_state)
5747 		{
5748 		    ui_focus_change(FALSE);
5749 		    did_cursorhold = TRUE;
5750 		    focus_state = FALSE;
5751 		}
5752 		key_name[1] = (int)KE_IGNORE;
5753 	    }
5754 	}
5755 #endif
5756 
5757 	/*
5758 	 * Change <xHome> to <Home>, <xUp> to <Up>, etc.
5759 	 */
5760 	key = handle_x_keys(TERMCAP2KEY(key_name[0], key_name[1]));
5761 
5762 	/*
5763 	 * Add any modifier codes to our string.
5764 	 */
5765 	new_slen = modifiers2keycode(modifiers, &key, string);
5766 
5767 	// Finally, add the special key code to our string
5768 	key_name[0] = KEY2TERMCAP0(key);
5769 	key_name[1] = KEY2TERMCAP1(key);
5770 	if (key_name[0] == KS_KEY)
5771 	{
5772 	    // from ":set <M-b>=xx"
5773 	    if (has_mbyte)
5774 		new_slen += (*mb_char2bytes)(key_name[1], string + new_slen);
5775 	    else
5776 		string[new_slen++] = key_name[1];
5777 	}
5778 	else if (new_slen == 0 && key_name[0] == KS_EXTRA
5779 						  && key_name[1] == KE_IGNORE)
5780 	{
5781 	    // Do not put K_IGNORE into the buffer, do return KEYLEN_REMOVED
5782 	    // to indicate what happened.
5783 	    retval = KEYLEN_REMOVED;
5784 	}
5785 	else
5786 	{
5787 	    string[new_slen++] = K_SPECIAL;
5788 	    string[new_slen++] = key_name[0];
5789 	    string[new_slen++] = key_name[1];
5790 	}
5791 	if (put_string_in_typebuf(offset, slen, string, new_slen,
5792 						 buf, bufsize, buflen) == FAIL)
5793 	    return -1;
5794 	return retval == 0 ? (len + new_slen - slen + offset) : retval;
5795     }
5796 
5797 #ifdef FEAT_TERMRESPONSE
5798     LOG_TR(("normal character"));
5799 #endif
5800 
5801     return 0;			    // no match found
5802 }
5803 
5804 #if (defined(FEAT_TERMINAL) && defined(FEAT_TERMRESPONSE)) || defined(PROTO)
5805 /*
5806  * Get the text foreground color, if known.
5807  */
5808     void
5809 term_get_fg_color(char_u *r, char_u *g, char_u *b)
5810 {
5811     if (rfg_status.tr_progress == STATUS_GOT)
5812     {
5813 	*r = fg_r;
5814 	*g = fg_g;
5815 	*b = fg_b;
5816     }
5817 }
5818 
5819 /*
5820  * Get the text background color, if known.
5821  */
5822     void
5823 term_get_bg_color(char_u *r, char_u *g, char_u *b)
5824 {
5825     if (rbg_status.tr_progress == STATUS_GOT)
5826     {
5827 	*r = bg_r;
5828 	*g = bg_g;
5829 	*b = bg_b;
5830     }
5831 }
5832 #endif
5833 
5834 /*
5835  * Replace any terminal code strings in from[] with the equivalent internal
5836  * vim representation.	This is used for the "from" and "to" part of a
5837  * mapping, and the "to" part of a menu command.
5838  * Any strings like "<C-UP>" are also replaced, unless 'cpoptions' contains
5839  * '<'.
5840  * K_SPECIAL by itself is replaced by K_SPECIAL KS_SPECIAL KE_FILLER.
5841  *
5842  * The replacement is done in result[] and finally copied into allocated
5843  * memory. If this all works well *bufp is set to the allocated memory and a
5844  * pointer to it is returned. If something fails *bufp is set to NULL and from
5845  * is returned.
5846  *
5847  * CTRL-V characters are removed.  When "flags" has REPTERM_FROM_PART, a
5848  * trailing CTRL-V is included, otherwise it is removed (for ":map xx ^V", maps
5849  * xx to nothing).  When 'cpoptions' does not contain 'B', a backslash can be
5850  * used instead of a CTRL-V.
5851  *
5852  * Flags:
5853  *  REPTERM_FROM_PART	see above
5854  *  REPTERM_DO_LT	also translate <lt>
5855  *  REPTERM_SPECIAL	always accept <key> notation
5856  *  REPTERM_NO_SIMPLIFY	do not simplify <C-H> to 0x08 and set 8th bit for <A-x>
5857  *
5858  * "did_simplify" is set when some <C-H> or <A-x> code was simplified, unless
5859  * it is NULL.
5860  */
5861     char_u *
5862 replace_termcodes(
5863     char_u	*from,
5864     char_u	**bufp,
5865     int		flags,
5866     int		*did_simplify)
5867 {
5868     int		i;
5869     int		slen;
5870     int		key;
5871     int		dlen = 0;
5872     char_u	*src;
5873     int		do_backslash;	// backslash is a special character
5874     int		do_special;	// recognize <> key codes
5875     int		do_key_code;	// recognize raw key codes
5876     char_u	*result;	// buffer for resulting string
5877 
5878     do_backslash = (vim_strchr(p_cpo, CPO_BSLASH) == NULL);
5879     do_special = (vim_strchr(p_cpo, CPO_SPECI) == NULL)
5880 						  || (flags & REPTERM_SPECIAL);
5881     do_key_code = (vim_strchr(p_cpo, CPO_KEYCODE) == NULL);
5882 
5883     /*
5884      * Allocate space for the translation.  Worst case a single character is
5885      * replaced by 6 bytes (shifted special key), plus a NUL at the end.
5886      */
5887     result = alloc(STRLEN(from) * 6 + 1);
5888     if (result == NULL)		// out of memory
5889     {
5890 	*bufp = NULL;
5891 	return from;
5892     }
5893 
5894     src = from;
5895 
5896     /*
5897      * Check for #n at start only: function key n
5898      */
5899     if ((flags & REPTERM_FROM_PART) && src[0] == '#' && VIM_ISDIGIT(src[1]))
5900     {
5901 	result[dlen++] = K_SPECIAL;
5902 	result[dlen++] = 'k';
5903 	if (src[1] == '0')
5904 	    result[dlen++] = ';';	// #0 is F10 is "k;"
5905 	else
5906 	    result[dlen++] = src[1];	// #3 is F3 is "k3"
5907 	src += 2;
5908     }
5909 
5910     /*
5911      * Copy each byte from *from to result[dlen]
5912      */
5913     while (*src != NUL)
5914     {
5915 	/*
5916 	 * If 'cpoptions' does not contain '<', check for special key codes,
5917 	 * like "<C-S-LeftMouse>"
5918 	 */
5919 	if (do_special && ((flags & REPTERM_DO_LT)
5920 					      || STRNCMP(src, "<lt>", 4) != 0))
5921 	{
5922 #ifdef FEAT_EVAL
5923 	    /*
5924 	     * Replace <SID> by K_SNR <script-nr> _.
5925 	     * (room: 5 * 6 = 30 bytes; needed: 3 + <nr> + 1 <= 14)
5926 	     */
5927 	    if (STRNICMP(src, "<SID>", 5) == 0)
5928 	    {
5929 		if (current_sctx.sc_sid <= 0)
5930 		    emsg(_(e_usingsid));
5931 		else
5932 		{
5933 		    src += 5;
5934 		    result[dlen++] = K_SPECIAL;
5935 		    result[dlen++] = (int)KS_EXTRA;
5936 		    result[dlen++] = (int)KE_SNR;
5937 		    sprintf((char *)result + dlen, "%ld",
5938 						    (long)current_sctx.sc_sid);
5939 		    dlen += (int)STRLEN(result + dlen);
5940 		    result[dlen++] = '_';
5941 		    continue;
5942 		}
5943 	    }
5944 #endif
5945 
5946 	    slen = trans_special(&src, result + dlen, FSK_KEYCODE
5947 			  | ((flags & REPTERM_NO_SIMPLIFY) ? 0 : FSK_SIMPLIFY),
5948 								 did_simplify);
5949 	    if (slen)
5950 	    {
5951 		dlen += slen;
5952 		continue;
5953 	    }
5954 	}
5955 
5956 	/*
5957 	 * If 'cpoptions' does not contain 'k', see if it's an actual key-code.
5958 	 * Note that this is also checked after replacing the <> form.
5959 	 * Single character codes are NOT replaced (e.g. ^H or DEL), because
5960 	 * it could be a character in the file.
5961 	 */
5962 	if (do_key_code)
5963 	{
5964 	    i = find_term_bykeys(src);
5965 	    if (i >= 0)
5966 	    {
5967 		result[dlen++] = K_SPECIAL;
5968 		result[dlen++] = termcodes[i].name[0];
5969 		result[dlen++] = termcodes[i].name[1];
5970 		src += termcodes[i].len;
5971 		// If terminal code matched, continue after it.
5972 		continue;
5973 	    }
5974 	}
5975 
5976 #ifdef FEAT_EVAL
5977 	if (do_special)
5978 	{
5979 	    char_u	*p, *s, len;
5980 
5981 	    /*
5982 	     * Replace <Leader> by the value of "mapleader".
5983 	     * Replace <LocalLeader> by the value of "maplocalleader".
5984 	     * If "mapleader" or "maplocalleader" isn't set use a backslash.
5985 	     */
5986 	    if (STRNICMP(src, "<Leader>", 8) == 0)
5987 	    {
5988 		len = 8;
5989 		p = get_var_value((char_u *)"g:mapleader");
5990 	    }
5991 	    else if (STRNICMP(src, "<LocalLeader>", 13) == 0)
5992 	    {
5993 		len = 13;
5994 		p = get_var_value((char_u *)"g:maplocalleader");
5995 	    }
5996 	    else
5997 	    {
5998 		len = 0;
5999 		p = NULL;
6000 	    }
6001 	    if (len != 0)
6002 	    {
6003 		// Allow up to 8 * 6 characters for "mapleader".
6004 		if (p == NULL || *p == NUL || STRLEN(p) > 8 * 6)
6005 		    s = (char_u *)"\\";
6006 		else
6007 		    s = p;
6008 		while (*s != NUL)
6009 		    result[dlen++] = *s++;
6010 		src += len;
6011 		continue;
6012 	    }
6013 	}
6014 #endif
6015 
6016 	/*
6017 	 * Remove CTRL-V and ignore the next character.
6018 	 * For "from" side the CTRL-V at the end is included, for the "to"
6019 	 * part it is removed.
6020 	 * If 'cpoptions' does not contain 'B', also accept a backslash.
6021 	 */
6022 	key = *src;
6023 	if (key == Ctrl_V || (do_backslash && key == '\\'))
6024 	{
6025 	    ++src;				// skip CTRL-V or backslash
6026 	    if (*src == NUL)
6027 	    {
6028 		if (flags & REPTERM_FROM_PART)
6029 		    result[dlen++] = key;
6030 		break;
6031 	    }
6032 	}
6033 
6034 	// skip multibyte char correctly
6035 	for (i = (*mb_ptr2len)(src); i > 0; --i)
6036 	{
6037 	    /*
6038 	     * If the character is K_SPECIAL, replace it with K_SPECIAL
6039 	     * KS_SPECIAL KE_FILLER.
6040 	     * If compiled with the GUI replace CSI with K_CSI.
6041 	     */
6042 	    if (*src == K_SPECIAL)
6043 	    {
6044 		result[dlen++] = K_SPECIAL;
6045 		result[dlen++] = KS_SPECIAL;
6046 		result[dlen++] = KE_FILLER;
6047 	    }
6048 # ifdef FEAT_GUI
6049 	    else if (*src == CSI)
6050 	    {
6051 		result[dlen++] = K_SPECIAL;
6052 		result[dlen++] = KS_EXTRA;
6053 		result[dlen++] = (int)KE_CSI;
6054 	    }
6055 # endif
6056 	    else
6057 		result[dlen++] = *src;
6058 	    ++src;
6059 	}
6060     }
6061     result[dlen] = NUL;
6062 
6063     /*
6064      * Copy the new string to allocated memory.
6065      * If this fails, just return from.
6066      */
6067     if ((*bufp = vim_strsave(result)) != NULL)
6068 	from = *bufp;
6069     vim_free(result);
6070     return from;
6071 }
6072 
6073 /*
6074  * Find a termcode with keys 'src' (must be NUL terminated).
6075  * Return the index in termcodes[], or -1 if not found.
6076  */
6077     static int
6078 find_term_bykeys(char_u *src)
6079 {
6080     int		i;
6081     int		slen = (int)STRLEN(src);
6082 
6083     for (i = 0; i < tc_len; ++i)
6084     {
6085 	if (slen == termcodes[i].len
6086 			&& STRNCMP(termcodes[i].code, src, (size_t)slen) == 0)
6087 	    return i;
6088     }
6089     return -1;
6090 }
6091 
6092 /*
6093  * Gather the first characters in the terminal key codes into a string.
6094  * Used to speed up check_termcode().
6095  */
6096     static void
6097 gather_termleader(void)
6098 {
6099     int	    i;
6100     int	    len = 0;
6101 
6102 #ifdef FEAT_GUI
6103     if (gui.in_use)
6104 	termleader[len++] = CSI;    // the GUI codes are not in termcodes[]
6105 #endif
6106 #ifdef FEAT_TERMRESPONSE
6107     if (check_for_codes || *T_CRS != NUL)
6108 	termleader[len++] = DCS;    // the termcode response starts with DCS
6109 				    // in 8-bit mode
6110 #endif
6111     termleader[len] = NUL;
6112 
6113     for (i = 0; i < tc_len; ++i)
6114 	if (vim_strchr(termleader, termcodes[i].code[0]) == NULL)
6115 	{
6116 	    termleader[len++] = termcodes[i].code[0];
6117 	    termleader[len] = NUL;
6118 	}
6119 
6120     need_gather = FALSE;
6121 }
6122 
6123 /*
6124  * Show all termcodes (for ":set termcap")
6125  * This code looks a lot like showoptions(), but is different.
6126  */
6127     void
6128 show_termcodes(void)
6129 {
6130     int		col;
6131     int		*items;
6132     int		item_count;
6133     int		run;
6134     int		row, rows;
6135     int		cols;
6136     int		i;
6137     int		len;
6138 
6139 #define INC3 27	    // try to make three columns
6140 #define INC2 40	    // try to make two columns
6141 #define GAP 2	    // spaces between columns
6142 
6143     if (tc_len == 0)	    // no terminal codes (must be GUI)
6144 	return;
6145     items = ALLOC_MULT(int, tc_len);
6146     if (items == NULL)
6147 	return;
6148 
6149     // Highlight title
6150     msg_puts_title(_("\n--- Terminal keys ---"));
6151 
6152     /*
6153      * do the loop two times:
6154      * 1. display the short items (non-strings and short strings)
6155      * 2. display the medium items (medium length strings)
6156      * 3. display the long items (remaining strings)
6157      */
6158     for (run = 1; run <= 3 && !got_int; ++run)
6159     {
6160 	/*
6161 	 * collect the items in items[]
6162 	 */
6163 	item_count = 0;
6164 	for (i = 0; i < tc_len; i++)
6165 	{
6166 	    len = show_one_termcode(termcodes[i].name,
6167 						    termcodes[i].code, FALSE);
6168 	    if (len <= INC3 - GAP ? run == 1
6169 			: len <= INC2 - GAP ? run == 2
6170 			: run == 3)
6171 		items[item_count++] = i;
6172 	}
6173 
6174 	/*
6175 	 * display the items
6176 	 */
6177 	if (run <= 2)
6178 	{
6179 	    cols = (Columns + GAP) / (run == 1 ? INC3 : INC2);
6180 	    if (cols == 0)
6181 		cols = 1;
6182 	    rows = (item_count + cols - 1) / cols;
6183 	}
6184 	else	// run == 3
6185 	    rows = item_count;
6186 	for (row = 0; row < rows && !got_int; ++row)
6187 	{
6188 	    msg_putchar('\n');			// go to next line
6189 	    if (got_int)			// 'q' typed in more
6190 		break;
6191 	    col = 0;
6192 	    for (i = row; i < item_count; i += rows)
6193 	    {
6194 		msg_col = col;			// make columns
6195 		show_one_termcode(termcodes[items[i]].name,
6196 					      termcodes[items[i]].code, TRUE);
6197 		if (run == 2)
6198 		    col += INC2;
6199 		else
6200 		    col += INC3;
6201 	    }
6202 	    out_flush();
6203 	    ui_breakcheck();
6204 	}
6205     }
6206     vim_free(items);
6207 }
6208 
6209 /*
6210  * Show one termcode entry.
6211  * Output goes into IObuff[]
6212  */
6213     int
6214 show_one_termcode(char_u *name, char_u *code, int printit)
6215 {
6216     char_u	*p;
6217     int		len;
6218 
6219     if (name[0] > '~')
6220     {
6221 	IObuff[0] = ' ';
6222 	IObuff[1] = ' ';
6223 	IObuff[2] = ' ';
6224 	IObuff[3] = ' ';
6225     }
6226     else
6227     {
6228 	IObuff[0] = 't';
6229 	IObuff[1] = '_';
6230 	IObuff[2] = name[0];
6231 	IObuff[3] = name[1];
6232     }
6233     IObuff[4] = ' ';
6234 
6235     p = get_special_key_name(TERMCAP2KEY(name[0], name[1]), 0);
6236     if (p[1] != 't')
6237 	STRCPY(IObuff + 5, p);
6238     else
6239 	IObuff[5] = NUL;
6240     len = (int)STRLEN(IObuff);
6241     do
6242 	IObuff[len++] = ' ';
6243     while (len < 17);
6244     IObuff[len] = NUL;
6245     if (code == NULL)
6246 	len += 4;
6247     else
6248 	len += vim_strsize(code);
6249 
6250     if (printit)
6251     {
6252 	msg_puts((char *)IObuff);
6253 	if (code == NULL)
6254 	    msg_puts("NULL");
6255 	else
6256 	    msg_outtrans(code);
6257     }
6258     return len;
6259 }
6260 
6261 #if defined(FEAT_TERMRESPONSE) || defined(PROTO)
6262 /*
6263  * For Xterm >= 140 compiled with OPT_TCAP_QUERY: Obtain the actually used
6264  * termcap codes from the terminal itself.
6265  * We get them one by one to avoid a very long response string.
6266  */
6267 static int xt_index_in = 0;
6268 static int xt_index_out = 0;
6269 
6270     static void
6271 req_codes_from_term(void)
6272 {
6273     xt_index_out = 0;
6274     xt_index_in = 0;
6275     req_more_codes_from_term();
6276 }
6277 
6278     static void
6279 req_more_codes_from_term(void)
6280 {
6281     char	buf[11];
6282     int		old_idx = xt_index_out;
6283 
6284     // Don't do anything when going to exit.
6285     if (exiting)
6286 	return;
6287 
6288     // Send up to 10 more requests out than we received.  Avoid sending too
6289     // many, there can be a buffer overflow somewhere.
6290     while (xt_index_out < xt_index_in + 10 && key_names[xt_index_out] != NULL)
6291     {
6292 	char *key_name = key_names[xt_index_out];
6293 
6294 #ifdef FEAT_JOB_CHANNEL
6295 	ch_log_output = TRUE;
6296 #endif
6297 	LOG_TR(("Requesting XT %d: %s", xt_index_out, key_name));
6298 	sprintf(buf, "\033P+q%02x%02x\033\\", key_name[0], key_name[1]);
6299 	out_str_nf((char_u *)buf);
6300 	++xt_index_out;
6301     }
6302 
6303     // Send the codes out right away.
6304     if (xt_index_out != old_idx)
6305 	out_flush();
6306 }
6307 
6308 /*
6309  * Decode key code response from xterm: '<Esc>P1+r<name>=<string><Esc>\'.
6310  * A "0" instead of the "1" indicates a code that isn't supported.
6311  * Both <name> and <string> are encoded in hex.
6312  * "code" points to the "0" or "1".
6313  */
6314     static void
6315 got_code_from_term(char_u *code, int len)
6316 {
6317 #define XT_LEN 100
6318     char_u	name[3];
6319     char_u	str[XT_LEN];
6320     int		i;
6321     int		j = 0;
6322     int		c;
6323 
6324     // A '1' means the code is supported, a '0' means it isn't.
6325     // When half the length is > XT_LEN we can't use it.
6326     // Our names are currently all 2 characters.
6327     if (code[0] == '1' && code[7] == '=' && len / 2 < XT_LEN)
6328     {
6329 	// Get the name from the response and find it in the table.
6330 	name[0] = hexhex2nr(code + 3);
6331 	name[1] = hexhex2nr(code + 5);
6332 	name[2] = NUL;
6333 	for (i = 0; key_names[i] != NULL; ++i)
6334 	{
6335 	    if (STRCMP(key_names[i], name) == 0)
6336 	    {
6337 		xt_index_in = i;
6338 		break;
6339 	    }
6340 	}
6341 
6342 	LOG_TR(("Received XT %d: %s", xt_index_in, (char *)name));
6343 
6344 	if (key_names[i] != NULL)
6345 	{
6346 	    for (i = 8; (c = hexhex2nr(code + i)) >= 0; i += 2)
6347 		str[j++] = c;
6348 	    str[j] = NUL;
6349 	    if (name[0] == 'C' && name[1] == 'o')
6350 	    {
6351 		// Color count is not a key code.
6352 		i = atoi((char *)str);
6353 		may_adjust_color_count(i);
6354 	    }
6355 	    else
6356 	    {
6357 		// First delete any existing entry with the same code.
6358 		i = find_term_bykeys(str);
6359 		if (i >= 0)
6360 		    del_termcode_idx(i);
6361 		add_termcode(name, str, ATC_FROM_TERM);
6362 	    }
6363 	}
6364     }
6365 
6366     // May request more codes now that we received one.
6367     ++xt_index_in;
6368     req_more_codes_from_term();
6369 }
6370 
6371 /*
6372  * Check if there are any unanswered requests and deal with them.
6373  * This is called before starting an external program or getting direct
6374  * keyboard input.  We don't want responses to be send to that program or
6375  * handled as typed text.
6376  */
6377     static void
6378 check_for_codes_from_term(void)
6379 {
6380     int		c;
6381 
6382     // If no codes requested or all are answered, no need to wait.
6383     if (xt_index_out == 0 || xt_index_out == xt_index_in)
6384 	return;
6385 
6386     // Vgetc() will check for and handle any response.
6387     // Keep calling vpeekc() until we don't get any responses.
6388     ++no_mapping;
6389     ++allow_keys;
6390     for (;;)
6391     {
6392 	c = vpeekc();
6393 	if (c == NUL)	    // nothing available
6394 	    break;
6395 
6396 	// If a response is recognized it's replaced with K_IGNORE, must read
6397 	// it from the input stream.  If there is no K_IGNORE we can't do
6398 	// anything, break here (there might be some responses further on, but
6399 	// we don't want to throw away any typed chars).
6400 	if (c != K_SPECIAL && c != K_IGNORE)
6401 	    break;
6402 	c = vgetc();
6403 	if (c != K_IGNORE)
6404 	{
6405 	    vungetc(c);
6406 	    break;
6407 	}
6408     }
6409     --no_mapping;
6410     --allow_keys;
6411 }
6412 #endif
6413 
6414 #if (defined(MSWIN) && (!defined(FEAT_GUI) || defined(VIMDLL))) || defined(PROTO)
6415 static char ksme_str[20];
6416 static char ksmr_str[20];
6417 static char ksmd_str[20];
6418 
6419 /*
6420  * For Win32 console: update termcap codes for existing console attributes.
6421  */
6422     void
6423 update_tcap(int attr)
6424 {
6425     struct builtin_term *p;
6426 
6427     p = find_builtin_term(DEFAULT_TERM);
6428     sprintf(ksme_str, IF_EB("\033|%dm", ESC_STR "|%dm"), attr);
6429     sprintf(ksmd_str, IF_EB("\033|%dm", ESC_STR "|%dm"),
6430 				     attr | 0x08);  // FOREGROUND_INTENSITY
6431     sprintf(ksmr_str, IF_EB("\033|%dm", ESC_STR "|%dm"),
6432 				 ((attr & 0x0F) << 4) | ((attr & 0xF0) >> 4));
6433 
6434     while (p->bt_string != NULL)
6435     {
6436       if (p->bt_entry == (int)KS_ME)
6437 	  p->bt_string = &ksme_str[0];
6438       else if (p->bt_entry == (int)KS_MR)
6439 	  p->bt_string = &ksmr_str[0];
6440       else if (p->bt_entry == (int)KS_MD)
6441 	  p->bt_string = &ksmd_str[0];
6442       ++p;
6443     }
6444 }
6445 
6446 # ifdef FEAT_TERMGUICOLORS
6447 #  define KSSIZE 20
6448 struct ks_tbl_s
6449 {
6450     int  code;		// value of KS_
6451     char *vtp;		// code in vtp mode
6452     char *vtp2;		// code in vtp2 mode
6453     char buf[KSSIZE];   // save buffer in non-vtp mode
6454     char vbuf[KSSIZE];  // save buffer in vtp mode
6455     char v2buf[KSSIZE]; // save buffer in vtp2 mode
6456     char arr[KSSIZE];   // real buffer
6457 };
6458 
6459 static struct ks_tbl_s ks_tbl[] =
6460 {
6461     {(int)KS_ME,  "\033|0m",  "\033|0m"},   // normal
6462     {(int)KS_MR,  "\033|7m",  "\033|7m"},   // reverse
6463     {(int)KS_MD,  "\033|1m",  "\033|1m"},   // bold
6464     {(int)KS_SO,  "\033|91m", "\033|91m"},  // standout: bright red text
6465     {(int)KS_SE,  "\033|39m", "\033|39m"},  // standout end: default color
6466     {(int)KS_CZH, "\033|95m", "\033|95m"},  // italic: bright magenta text
6467     {(int)KS_CZR, "\033|0m",  "\033|0m"},   // italic end
6468     {(int)KS_US,  "\033|4m",  "\033|4m"},   // underscore
6469     {(int)KS_UE,  "\033|24m", "\033|24m"},  // underscore end
6470 #  ifdef TERMINFO
6471     {(int)KS_CAB, "\033|%p1%db", "\033|%p14%dm"}, // set background color
6472     {(int)KS_CAF, "\033|%p1%df", "\033|%p13%dm"}, // set foreground color
6473     {(int)KS_CS,  "\033|%p1%d;%p2%dR", "\033|%p1%d;%p2%dR"},
6474     {(int)KS_CSV, "\033|%p1%d;%p2%dV", "\033|%p1%d;%p2%dV"},
6475 #  else
6476     {(int)KS_CAB, "\033|%db", "\033|4%dm"}, // set background color
6477     {(int)KS_CAF, "\033|%df", "\033|3%dm"}, // set foreground color
6478     {(int)KS_CS,  "\033|%d;%dR", "\033|%d;%dR"},
6479     {(int)KS_CSV, "\033|%d;%dV", "\033|%d;%dV"},
6480 #  endif
6481     {(int)KS_CCO, "256", "256"},	    // colors
6482     {(int)KS_NAME}			    // terminator
6483 };
6484 
6485     static struct builtin_term *
6486 find_first_tcap(
6487     char_u *name,
6488     int	    code)
6489 {
6490     struct builtin_term *p;
6491 
6492     for (p = find_builtin_term(name); p->bt_string != NULL; ++p)
6493 	if (p->bt_entry == code)
6494 	    return p;
6495     return NULL;
6496 }
6497 # endif
6498 
6499 /*
6500  * For Win32 console: replace the sequence immediately after termguicolors.
6501  */
6502     void
6503 swap_tcap(void)
6504 {
6505 # ifdef FEAT_TERMGUICOLORS
6506     static int		init_done = FALSE;
6507     static int		curr_mode;
6508     struct ks_tbl_s	*ks;
6509     struct builtin_term *bt;
6510     int			mode;
6511     enum
6512     {
6513 	CMODEINDEX,
6514 	CMODE24,
6515 	CMODE256
6516     };
6517 
6518     // buffer initialization
6519     if (!init_done)
6520     {
6521 	for (ks = ks_tbl; ks->code != (int)KS_NAME; ks++)
6522 	{
6523 	    bt = find_first_tcap(DEFAULT_TERM, ks->code);
6524 	    if (bt != NULL)
6525 	    {
6526 		STRNCPY(ks->buf, bt->bt_string, KSSIZE);
6527 		STRNCPY(ks->vbuf, ks->vtp, KSSIZE);
6528 		STRNCPY(ks->v2buf, ks->vtp2, KSSIZE);
6529 
6530 		STRNCPY(ks->arr, bt->bt_string, KSSIZE);
6531 		bt->bt_string = &ks->arr[0];
6532 	    }
6533 	}
6534 	init_done = TRUE;
6535 	curr_mode = CMODEINDEX;
6536     }
6537 
6538     if (p_tgc)
6539 	mode = CMODE24;
6540     else if (t_colors >= 256)
6541 	mode = CMODE256;
6542     else
6543 	mode = CMODEINDEX;
6544 
6545     for (ks = ks_tbl; ks->code != (int)KS_NAME; ks++)
6546     {
6547 	bt = find_first_tcap(DEFAULT_TERM, ks->code);
6548 	if (bt != NULL)
6549 	{
6550 	    switch (curr_mode)
6551 	    {
6552 	    case CMODEINDEX:
6553 		STRNCPY(&ks->buf[0], bt->bt_string, KSSIZE);
6554 		break;
6555 	    case CMODE24:
6556 		STRNCPY(&ks->vbuf[0], bt->bt_string, KSSIZE);
6557 		break;
6558 	    default:
6559 		STRNCPY(&ks->v2buf[0], bt->bt_string, KSSIZE);
6560 	    }
6561 	}
6562     }
6563 
6564     if (mode != curr_mode)
6565     {
6566 	for (ks = ks_tbl; ks->code != (int)KS_NAME; ks++)
6567 	{
6568 	    bt = find_first_tcap(DEFAULT_TERM, ks->code);
6569 	    if (bt != NULL)
6570 	    {
6571 		switch (mode)
6572 		{
6573 		case CMODEINDEX:
6574 		    STRNCPY(bt->bt_string, &ks->buf[0], KSSIZE);
6575 		    break;
6576 		case CMODE24:
6577 		    STRNCPY(bt->bt_string, &ks->vbuf[0], KSSIZE);
6578 		    break;
6579 		default:
6580 		    STRNCPY(bt->bt_string, &ks->v2buf[0], KSSIZE);
6581 		}
6582 	    }
6583 	}
6584 
6585 	curr_mode = mode;
6586     }
6587 # endif
6588 }
6589 
6590 #endif
6591 
6592 #if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS) || defined(PROTO)
6593     static int
6594 hex_digit(int c)
6595 {
6596     if (isdigit(c))
6597 	return c - '0';
6598     c = TOLOWER_ASC(c);
6599     if (c >= 'a' && c <= 'f')
6600 	return c - 'a' + 10;
6601     return 0x1ffffff;
6602 }
6603 
6604 # ifdef VIMDLL
6605     static guicolor_T
6606 gui_adjust_rgb(guicolor_T c)
6607 {
6608     if (gui.in_use)
6609 	return c;
6610     else
6611 	return ((c & 0xff) << 16) | (c & 0x00ff00) | ((c >> 16) & 0xff);
6612 }
6613 # else
6614 #  define gui_adjust_rgb(c) (c)
6615 # endif
6616 
6617     guicolor_T
6618 gui_get_color_cmn(char_u *name)
6619 {
6620     // On MS-Windows an RGB macro is available and it produces 0x00bbggrr color
6621     // values as used by the MS-Windows GDI api.  It should be used only for
6622     // MS-Windows GDI builds.
6623 # if defined(RGB) && defined(MSWIN) && !defined(FEAT_GUI)
6624 #  undef RGB
6625 # endif
6626 # ifndef RGB
6627 #  define RGB(r, g, b)	((r<<16) | (g<<8) | (b))
6628 # endif
6629 # define LINE_LEN 100
6630     FILE	*fd;
6631     char	line[LINE_LEN];
6632     char_u	*fname;
6633     int		r, g, b, i;
6634     guicolor_T  color;
6635 
6636     struct rgbcolor_table_S {
6637 	char_u	    *color_name;
6638 	guicolor_T  color;
6639     };
6640 
6641     // Only non X11 colors (not present in rgb.txt) and colors in
6642     // color_names[], useful when $VIMRUNTIME is not found,.
6643     static struct rgbcolor_table_S rgb_table[] = {
6644 	    {(char_u *)"black",		RGB(0x00, 0x00, 0x00)},
6645 	    {(char_u *)"blue",		RGB(0x00, 0x00, 0xFF)},
6646 	    {(char_u *)"brown",		RGB(0xA5, 0x2A, 0x2A)},
6647 	    {(char_u *)"cyan",		RGB(0x00, 0xFF, 0xFF)},
6648 	    {(char_u *)"darkblue",	RGB(0x00, 0x00, 0x8B)},
6649 	    {(char_u *)"darkcyan",	RGB(0x00, 0x8B, 0x8B)},
6650 	    {(char_u *)"darkgray",	RGB(0xA9, 0xA9, 0xA9)},
6651 	    {(char_u *)"darkgreen",	RGB(0x00, 0x64, 0x00)},
6652 	    {(char_u *)"darkgrey",	RGB(0xA9, 0xA9, 0xA9)},
6653 	    {(char_u *)"darkmagenta",	RGB(0x8B, 0x00, 0x8B)},
6654 	    {(char_u *)"darkred",	RGB(0x8B, 0x00, 0x00)},
6655 	    {(char_u *)"darkyellow",	RGB(0x8B, 0x8B, 0x00)}, // No X11
6656 	    {(char_u *)"gray",		RGB(0xBE, 0xBE, 0xBE)},
6657 	    {(char_u *)"green",		RGB(0x00, 0xFF, 0x00)},
6658 	    {(char_u *)"grey",		RGB(0xBE, 0xBE, 0xBE)},
6659 	    {(char_u *)"grey40",	RGB(0x66, 0x66, 0x66)},
6660 	    {(char_u *)"grey50",	RGB(0x7F, 0x7F, 0x7F)},
6661 	    {(char_u *)"grey90",	RGB(0xE5, 0xE5, 0xE5)},
6662 	    {(char_u *)"lightblue",	RGB(0xAD, 0xD8, 0xE6)},
6663 	    {(char_u *)"lightcyan",	RGB(0xE0, 0xFF, 0xFF)},
6664 	    {(char_u *)"lightgray",	RGB(0xD3, 0xD3, 0xD3)},
6665 	    {(char_u *)"lightgreen",	RGB(0x90, 0xEE, 0x90)},
6666 	    {(char_u *)"lightgrey",	RGB(0xD3, 0xD3, 0xD3)},
6667 	    {(char_u *)"lightmagenta",	RGB(0xFF, 0x8B, 0xFF)}, // No X11
6668 	    {(char_u *)"lightred",	RGB(0xFF, 0x8B, 0x8B)}, // No X11
6669 	    {(char_u *)"lightyellow",	RGB(0xFF, 0xFF, 0xE0)},
6670 	    {(char_u *)"magenta",	RGB(0xFF, 0x00, 0xFF)},
6671 	    {(char_u *)"red",		RGB(0xFF, 0x00, 0x00)},
6672 	    {(char_u *)"seagreen",	RGB(0x2E, 0x8B, 0x57)},
6673 	    {(char_u *)"white",		RGB(0xFF, 0xFF, 0xFF)},
6674 	    {(char_u *)"yellow",	RGB(0xFF, 0xFF, 0x00)},
6675     };
6676 
6677     static struct rgbcolor_table_S *colornames_table;
6678     static int size = 0;
6679 
6680     if (name[0] == '#' && STRLEN(name) == 7)
6681     {
6682 	// Name is in "#rrggbb" format
6683 	color = RGB(((hex_digit(name[1]) << 4) + hex_digit(name[2])),
6684 		    ((hex_digit(name[3]) << 4) + hex_digit(name[4])),
6685 		    ((hex_digit(name[5]) << 4) + hex_digit(name[6])));
6686 	if (color > 0xffffff)
6687 	    return INVALCOLOR;
6688 	return gui_adjust_rgb(color);
6689     }
6690 
6691     // Check if the name is one of the colors we know
6692     for (i = 0; i < (int)(sizeof(rgb_table) / sizeof(rgb_table[0])); i++)
6693 	if (STRICMP(name, rgb_table[i].color_name) == 0)
6694 	    return gui_adjust_rgb(rgb_table[i].color);
6695 
6696     /*
6697      * Last attempt. Look in the file "$VIMRUNTIME/rgb.txt".
6698      */
6699     if (size == 0)
6700     {
6701 	int counting;
6702 
6703 	// colornames_table not yet initialized
6704 	fname = expand_env_save((char_u *)"$VIMRUNTIME/rgb.txt");
6705 	if (fname == NULL)
6706 	    return INVALCOLOR;
6707 
6708 	fd = fopen((char *)fname, "rt");
6709 	vim_free(fname);
6710 	if (fd == NULL)
6711 	{
6712 	    if (p_verbose > 1)
6713 		verb_msg(_("Cannot open $VIMRUNTIME/rgb.txt"));
6714 	    size = -1;  // don't try again
6715 	    return INVALCOLOR;
6716 	}
6717 
6718 	for (counting = 1; counting >= 0; --counting)
6719 	{
6720 	    if (!counting)
6721 	    {
6722 		colornames_table = ALLOC_MULT(struct rgbcolor_table_S, size);
6723 		if (colornames_table == NULL)
6724 		{
6725 		    fclose(fd);
6726 		    return INVALCOLOR;
6727 		}
6728 		rewind(fd);
6729 	    }
6730 	    size = 0;
6731 
6732 	    while (!feof(fd))
6733 	    {
6734 		size_t	len;
6735 		int	pos;
6736 
6737 		vim_ignoredp = fgets(line, LINE_LEN, fd);
6738 		len = strlen(line);
6739 
6740 		if (len <= 1 || line[len - 1] != '\n')
6741 		    continue;
6742 
6743 		line[len - 1] = '\0';
6744 
6745 		i = sscanf(line, "%d %d %d %n", &r, &g, &b, &pos);
6746 		if (i != 3)
6747 		    continue;
6748 
6749 		if (!counting)
6750 		{
6751 		    char_u *s = vim_strsave((char_u *)line + pos);
6752 
6753 		    if (s == NULL)
6754 		    {
6755 			fclose(fd);
6756 			return INVALCOLOR;
6757 		    }
6758 		    colornames_table[size].color_name = s;
6759 		    colornames_table[size].color = (guicolor_T)RGB(r, g, b);
6760 		}
6761 		size++;
6762 
6763 		// The distributed rgb.txt has less than 1000 entries. Limit to
6764 		// 10000, just in case the file was messed up.
6765 		if (size == 10000)
6766 		    break;
6767 	    }
6768 	}
6769 	fclose(fd);
6770     }
6771 
6772     for (i = 0; i < size; i++)
6773 	if (STRICMP(name, colornames_table[i].color_name) == 0)
6774 	    return gui_adjust_rgb(colornames_table[i].color);
6775 
6776     return INVALCOLOR;
6777 }
6778 
6779     guicolor_T
6780 gui_get_rgb_color_cmn(int r, int g, int b)
6781 {
6782     guicolor_T  color = RGB(r, g, b);
6783 
6784     if (color > 0xffffff)
6785 	return INVALCOLOR;
6786     return gui_adjust_rgb(color);
6787 }
6788 #endif
6789 
6790 #if (defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL))) || defined(FEAT_TERMINAL) \
6791 	|| defined(PROTO)
6792 static int cube_value[] = {
6793     0x00, 0x5F, 0x87, 0xAF, 0xD7, 0xFF
6794 };
6795 
6796 static int grey_ramp[] = {
6797     0x08, 0x12, 0x1C, 0x26, 0x30, 0x3A, 0x44, 0x4E, 0x58, 0x62, 0x6C, 0x76,
6798     0x80, 0x8A, 0x94, 0x9E, 0xA8, 0xB2, 0xBC, 0xC6, 0xD0, 0xDA, 0xE4, 0xEE
6799 };
6800 
6801 static char_u ansi_table[16][4] = {
6802 //   R    G    B   idx
6803   {  0,   0,   0,  1}, // black
6804   {224,   0,   0,  2}, // dark red
6805   {  0, 224,   0,  3}, // dark green
6806   {224, 224,   0,  4}, // dark yellow / brown
6807   {  0,   0, 224,  5}, // dark blue
6808   {224,   0, 224,  6}, // dark magenta
6809   {  0, 224, 224,  7}, // dark cyan
6810   {224, 224, 224,  8}, // light grey
6811 
6812   {128, 128, 128,  9}, // dark grey
6813   {255,  64,  64, 10}, // light red
6814   { 64, 255,  64, 11}, // light green
6815   {255, 255,  64, 12}, // yellow
6816   { 64,  64, 255, 13}, // light blue
6817   {255,  64, 255, 14}, // light magenta
6818   { 64, 255, 255, 15}, // light cyan
6819   {255, 255, 255, 16}, // white
6820 };
6821 
6822 #define ANSI_INDEX_NONE 0
6823 
6824     void
6825 cterm_color2rgb(int nr, char_u *r, char_u *g, char_u *b, char_u *ansi_idx)
6826 {
6827     int idx;
6828 
6829     if (nr < 16)
6830     {
6831 	*r = ansi_table[nr][0];
6832 	*g = ansi_table[nr][1];
6833 	*b = ansi_table[nr][2];
6834 	*ansi_idx = ansi_table[nr][3];
6835     }
6836     else if (nr < 232)
6837     {
6838 	// 216 color cube
6839 	idx = nr - 16;
6840 	*r = cube_value[idx / 36 % 6];
6841 	*g = cube_value[idx / 6  % 6];
6842 	*b = cube_value[idx      % 6];
6843 	*ansi_idx = ANSI_INDEX_NONE;
6844     }
6845     else if (nr < 256)
6846     {
6847 	// 24 grey scale ramp
6848 	idx = nr - 232;
6849 	*r = grey_ramp[idx];
6850 	*g = grey_ramp[idx];
6851 	*b = grey_ramp[idx];
6852 	*ansi_idx = ANSI_INDEX_NONE;
6853     }
6854     else
6855     {
6856 	*r = 0;
6857 	*g = 0;
6858 	*b = 0;
6859 	*ansi_idx = ANSI_INDEX_NONE;
6860     }
6861 }
6862 #endif
6863 
6864 /*
6865  * Replace K_BS by <BS> and K_DEL by <DEL>
6866  */
6867     void
6868 term_replace_bs_del_keycode(char_u *ta_buf, int ta_len, int len)
6869 {
6870     int		i;
6871     int		c;
6872 
6873     for (i = ta_len; i < ta_len + len; ++i)
6874     {
6875 	if (ta_buf[i] == CSI && len - i > 2)
6876 	{
6877 	    c = TERMCAP2KEY(ta_buf[i + 1], ta_buf[i + 2]);
6878 	    if (c == K_DEL || c == K_KDEL || c == K_BS)
6879 	    {
6880 		mch_memmove(ta_buf + i + 1, ta_buf + i + 3,
6881 			(size_t)(len - i - 2));
6882 		if (c == K_DEL || c == K_KDEL)
6883 		    ta_buf[i] = DEL;
6884 		else
6885 		    ta_buf[i] = Ctrl_H;
6886 		len -= 2;
6887 	    }
6888 	}
6889 	else if (ta_buf[i] == '\r')
6890 	    ta_buf[i] = '\n';
6891 	if (has_mbyte)
6892 	    i += (*mb_ptr2len_len)(ta_buf + i, ta_len + len - i) - 1;
6893     }
6894 }
6895