xref: /vim-8.2.3635/src/term.c (revision b3a29558)
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, ...) ATTRIBUTE_FORMAT_PRINTF(1, 2);
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
termgui_mch_get_color(char_u * name)1341 termgui_mch_get_color(char_u *name)
1342 {
1343     return gui_get_color_cmn(name);
1344 }
1345 
1346     guicolor_T
termgui_get_color(char_u * name)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_cannot_allocate_color_str), name);
1357     return t;
1358 }
1359 
1360     guicolor_T
termgui_mch_get_rgb(guicolor_T color)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
init_term_props(int all)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
f_terminalprops(typval_T * argvars UNUSED,typval_T * rettv)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 *
find_builtin_term(char_u * 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
parse_builtin_tcap(char_u * term)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
set_color_count(int nr)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
may_adjust_color_count(int val)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
get_term_entries(int * height,int * width)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
report_term_error(char * error_msg,char_u * term)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 		&& STRCMP(termp->bt_string, "gui") != 0)
1791 	{
1792 #ifdef HAVE_TGETENT
1793 	    mch_errmsg("    builtin_");
1794 #else
1795 	    mch_errmsg("    ");
1796 #endif
1797 	    mch_errmsg(termp->bt_string);
1798 	    mch_errmsg("\r\n");
1799 	}
1800     }
1801     // Output extra 'cmdheight' line breaks to avoid that the following error
1802     // message overwrites the last terminal name.
1803     for (i = 1; i < p_ch; ++i)
1804 	mch_errmsg("\r\n");
1805 }
1806 
1807     static void
report_default_term(char_u * term)1808 report_default_term(char_u *term)
1809 {
1810     mch_errmsg(_("defaulting to '"));
1811     mch_errmsg((char *)term);
1812     mch_errmsg("'\r\n");
1813     if (emsg_silent == 0 && !in_assert_fails)
1814     {
1815 	screen_start();	// don't know where cursor is now
1816 	out_flush();
1817 	if (!is_not_a_term())
1818 	    ui_delay(2007L, TRUE);
1819     }
1820 }
1821 
1822 /*
1823  * Set terminal options for terminal "term".
1824  * Return OK if terminal 'term' was found in a termcap, FAIL otherwise.
1825  *
1826  * While doing this, until ttest(), some options may be NULL, be careful.
1827  */
1828     int
set_termname(char_u * term)1829 set_termname(char_u *term)
1830 {
1831     struct builtin_term *termp;
1832 #ifdef HAVE_TGETENT
1833     int		builtin_first = p_tbi;
1834     int		try;
1835     int		termcap_cleared = FALSE;
1836 #endif
1837     int		width = 0, height = 0;
1838     char	*error_msg = NULL;
1839     char_u	*bs_p, *del_p;
1840 
1841     // In silect mode (ex -s) we don't use the 'term' option.
1842     if (silent_mode)
1843 	return OK;
1844 
1845     detected_8bit = FALSE;		// reset 8-bit detection
1846 
1847     if (term_is_builtin(term))
1848     {
1849 	term += 8;
1850 #ifdef HAVE_TGETENT
1851 	builtin_first = 1;
1852 #endif
1853     }
1854 
1855 /*
1856  * If HAVE_TGETENT is not defined, only the builtin termcap is used, otherwise:
1857  *   If builtin_first is TRUE:
1858  *     0. try builtin termcap
1859  *     1. try external termcap
1860  *     2. if both fail default to a builtin terminal
1861  *   If builtin_first is FALSE:
1862  *     1. try external termcap
1863  *     2. try builtin termcap, if both fail default to a builtin terminal
1864  */
1865 #ifdef HAVE_TGETENT
1866     for (try = builtin_first ? 0 : 1; try < 3; ++try)
1867     {
1868 	/*
1869 	 * Use external termcap
1870 	 */
1871 	if (try == 1)
1872 	{
1873 	    char_u	    tbuf[TBUFSZ];
1874 
1875 	    /*
1876 	     * If the external termcap does not have a matching entry, try the
1877 	     * builtin ones.
1878 	     */
1879 	    if ((error_msg = tgetent_error(tbuf, term)) == NULL)
1880 	    {
1881 		if (!termcap_cleared)
1882 		{
1883 		    clear_termoptions();	// clear old options
1884 		    termcap_cleared = TRUE;
1885 		}
1886 
1887 		get_term_entries(&height, &width);
1888 	    }
1889 	}
1890 	else	    // try == 0 || try == 2
1891 #endif // HAVE_TGETENT
1892 	/*
1893 	 * Use builtin termcap
1894 	 */
1895 	{
1896 #ifdef HAVE_TGETENT
1897 	    /*
1898 	     * If builtin termcap was already used, there is no need to search
1899 	     * for the builtin termcap again, quit now.
1900 	     */
1901 	    if (try == 2 && builtin_first && termcap_cleared)
1902 		break;
1903 #endif
1904 	    /*
1905 	     * search for 'term' in builtin_termcaps[]
1906 	     */
1907 	    termp = find_builtin_term(term);
1908 	    if (termp->bt_string == NULL)	// did not find it
1909 	    {
1910 #ifdef HAVE_TGETENT
1911 		/*
1912 		 * If try == 0, first try the external termcap. If that is not
1913 		 * found we'll get back here with try == 2.
1914 		 * If termcap_cleared is set we used the external termcap,
1915 		 * don't complain about not finding the term in the builtin
1916 		 * termcap.
1917 		 */
1918 		if (try == 0)			// try external one
1919 		    continue;
1920 		if (termcap_cleared)		// found in external termcap
1921 		    break;
1922 #endif
1923 		report_term_error(error_msg, term);
1924 
1925 		// when user typed :set term=xxx, quit here
1926 		if (starting != NO_SCREEN)
1927 		{
1928 		    screen_start();	// don't know where cursor is now
1929 		    wait_return(TRUE);
1930 		    return FAIL;
1931 		}
1932 		term = DEFAULT_TERM;
1933 		report_default_term(term);
1934 		set_string_option_direct((char_u *)"term", -1, term,
1935 								 OPT_FREE, 0);
1936 		display_errors();
1937 	    }
1938 	    out_flush();
1939 #ifdef HAVE_TGETENT
1940 	    if (!termcap_cleared)
1941 	    {
1942 #endif
1943 		clear_termoptions();	    // clear old options
1944 #ifdef HAVE_TGETENT
1945 		termcap_cleared = TRUE;
1946 	    }
1947 #endif
1948 	    parse_builtin_tcap(term);
1949 #ifdef FEAT_GUI
1950 	    if (term_is_gui(term))
1951 	    {
1952 		out_flush();
1953 		gui_init();
1954 		// If starting the GUI failed, don't do any of the other
1955 		// things for this terminal
1956 		if (!gui.in_use)
1957 		    return FAIL;
1958 #ifdef HAVE_TGETENT
1959 		break;		// don't try using external termcap
1960 #endif
1961 	    }
1962 #endif // FEAT_GUI
1963 	}
1964 #ifdef HAVE_TGETENT
1965     }
1966 #endif
1967 
1968 /*
1969  * special: There is no info in the termcap about whether the cursor
1970  * positioning is relative to the start of the screen or to the start of the
1971  * scrolling region.  We just guess here. Only msdos pcterm is known to do it
1972  * relative.
1973  */
1974     if (STRCMP(term, "pcterm") == 0)
1975 	T_CCS = (char_u *)"yes";
1976     else
1977 	T_CCS = empty_option;
1978 
1979 #ifdef UNIX
1980 /*
1981  * Any "stty" settings override the default for t_kb from the termcap.
1982  * This is in os_unix.c, because it depends a lot on the version of unix that
1983  * is being used.
1984  * Don't do this when the GUI is active, it uses "t_kb" and "t_kD" directly.
1985  */
1986 # ifdef FEAT_GUI
1987     if (!gui.in_use)
1988 # endif
1989 	get_stty();
1990 #endif
1991 
1992 /*
1993  * If the termcap has no entry for 'bs' and/or 'del' and the ioctl() also
1994  * didn't work, use the default CTRL-H
1995  * The default for t_kD is DEL, unless t_kb is DEL.
1996  * The vim_strsave'd strings are probably lost forever, well it's only two
1997  * bytes.  Don't do this when the GUI is active, it uses "t_kb" and "t_kD"
1998  * directly.
1999  */
2000 #ifdef FEAT_GUI
2001     if (!gui.in_use)
2002 #endif
2003     {
2004 	bs_p = find_termcode((char_u *)"kb");
2005 	del_p = find_termcode((char_u *)"kD");
2006 	if (bs_p == NULL || *bs_p == NUL)
2007 	    add_termcode((char_u *)"kb", (bs_p = (char_u *)CTRL_H_STR), FALSE);
2008 	if ((del_p == NULL || *del_p == NUL) &&
2009 					    (bs_p == NULL || *bs_p != DEL))
2010 	    add_termcode((char_u *)"kD", (char_u *)DEL_STR, FALSE);
2011     }
2012 
2013 #if defined(UNIX) || defined(VMS)
2014     term_is_xterm = vim_is_xterm(term);
2015 #endif
2016 #ifdef FEAT_TERMRESPONSE
2017     // Reset terminal properties that are set based on the termresponse, which
2018     // will be sent out soon.
2019     init_term_props(FALSE);
2020 #endif
2021 
2022 #if defined(UNIX) || defined(VMS)
2023     /*
2024      * For Unix, set the 'ttymouse' option to the type of mouse to be used.
2025      * The termcode for the mouse is added as a side effect in option.c.
2026      */
2027     {
2028 	char_u	*p = (char_u *)"";
2029 
2030 # ifdef FEAT_MOUSE_XTERM
2031 	if (use_xterm_like_mouse(term))
2032 	{
2033 	    if (use_xterm_mouse())
2034 		p = NULL;	// keep existing value, might be "xterm2"
2035 	    else
2036 		p = (char_u *)"xterm";
2037 	}
2038 # endif
2039 	if (p != NULL)
2040 	{
2041 	    set_option_value((char_u *)"ttym", 0L, p, 0);
2042 	    // Reset the WAS_SET flag, 'ttymouse' can be set to "sgr" or
2043 	    // "xterm2" in check_termcode().
2044 	    reset_option_was_set((char_u *)"ttym");
2045 	}
2046 	if (p == NULL
2047 #  ifdef FEAT_GUI
2048 		|| gui.in_use
2049 #  endif
2050 		)
2051 	    check_mouse_termcode();	// set mouse termcode anyway
2052     }
2053 #else
2054     set_mouse_termcode(KS_MOUSE, (char_u *)"\233M");
2055 #endif
2056 
2057 #ifdef FEAT_MOUSE_XTERM
2058     // focus reporting is supported by xterm compatible terminals and tmux.
2059     if (use_xterm_like_mouse(term))
2060     {
2061 	char_u name[3];
2062 
2063 	// handle focus in event
2064 	name[0] = KS_EXTRA;
2065 	name[1] = KE_FOCUSGAINED;
2066 	name[2] = NUL;
2067 	add_termcode(name, (char_u *)"\033[I", FALSE);
2068 
2069 	// handle focus out event
2070 	name[1] = KE_FOCUSLOST;
2071 	add_termcode(name, (char_u *)"\033[O", FALSE);
2072 
2073 	focus_mode = TRUE;
2074 	focus_state = TRUE;
2075 	need_gather = TRUE;
2076     }
2077 #endif
2078 
2079 #ifdef USE_TERM_CONSOLE
2080     // DEFAULT_TERM indicates that it is the machine console.
2081     if (STRCMP(term, DEFAULT_TERM) != 0)
2082 	term_console = FALSE;
2083     else
2084     {
2085 	term_console = TRUE;
2086 # ifdef AMIGA
2087 	win_resize_on();	// enable window resizing reports
2088 # endif
2089     }
2090 #endif
2091 
2092 #if defined(UNIX) || defined(VMS)
2093     /*
2094      * 'ttyfast' is default on for xterm, iris-ansi and a few others.
2095      */
2096     if (vim_is_fastterm(term))
2097 	p_tf = TRUE;
2098 #endif
2099 #ifdef USE_TERM_CONSOLE
2100     /*
2101      * 'ttyfast' is default on consoles
2102      */
2103     if (term_console)
2104 	p_tf = TRUE;
2105 #endif
2106 
2107     ttest(TRUE);	// make sure we have a valid set of terminal codes
2108 
2109     full_screen = TRUE;		// we can use termcap codes from now on
2110     set_term_defaults();	// use current values as defaults
2111 #ifdef FEAT_TERMRESPONSE
2112     LOG_TR(("setting crv_status to STATUS_GET"));
2113     crv_status.tr_progress = STATUS_GET;	// Get terminal version later
2114 #endif
2115 
2116     /*
2117      * Initialize the terminal with the appropriate termcap codes.
2118      * Set the mouse and window title if possible.
2119      * Don't do this when starting, need to parse the .vimrc first, because it
2120      * may redefine t_TI etc.
2121      */
2122     if (starting != NO_SCREEN)
2123     {
2124 	starttermcap();		// may change terminal mode
2125 	setmouse();		// may start using the mouse
2126 #ifdef FEAT_TITLE
2127 	maketitle();		// may display window title
2128 #endif
2129     }
2130 
2131 	// display initial screen after ttest() checking. jw.
2132     if (width <= 0 || height <= 0)
2133     {
2134 	// termcap failed to report size
2135 	// set defaults, in case ui_get_shellsize() also fails
2136 	width = 80;
2137 #if defined(MSWIN)
2138 	height = 25;	    // console is often 25 lines
2139 #else
2140 	height = 24;	    // most terminals are 24 lines
2141 #endif
2142     }
2143     set_shellsize(width, height, FALSE);	// may change Rows
2144     if (starting != NO_SCREEN)
2145     {
2146 	if (scroll_region)
2147 	    scroll_region_reset();		// In case Rows changed
2148 	check_map_keycodes();	// check mappings for terminal codes used
2149 
2150 	{
2151 	    buf_T	*buf;
2152 	    aco_save_T	aco;
2153 
2154 	    /*
2155 	     * Execute the TermChanged autocommands for each buffer that is
2156 	     * loaded.
2157 	     */
2158 	    FOR_ALL_BUFFERS(buf)
2159 	    {
2160 		if (curbuf->b_ml.ml_mfp != NULL)
2161 		{
2162 		    aucmd_prepbuf(&aco, buf);
2163 		    apply_autocmds(EVENT_TERMCHANGED, NULL, NULL, FALSE,
2164 								      curbuf);
2165 		    // restore curwin/curbuf and a few other things
2166 		    aucmd_restbuf(&aco);
2167 		}
2168 	    }
2169 	}
2170     }
2171 
2172 #ifdef FEAT_TERMRESPONSE
2173     may_req_termresponse();
2174 #endif
2175 
2176     return OK;
2177 }
2178 
2179 #if defined(EXITFREE) || defined(PROTO)
2180 
2181 # ifdef HAVE_DEL_CURTERM
2182 #  undef TERMINAL	    // name clash in term.h
2183 #  include <term.h>	    // declares cur_term
2184 # endif
2185 
2186 /*
2187  * If supported, delete "cur_term", which caches terminal related entries.
2188  * Avoids that valgrind reports possibly lost memory.
2189  */
2190     void
free_cur_term()2191 free_cur_term()
2192 {
2193 # ifdef HAVE_DEL_CURTERM
2194     if (cur_term)
2195 	del_curterm(cur_term);
2196 # endif
2197 }
2198 
2199 #endif
2200 
2201 #ifdef HAVE_TGETENT
2202 /*
2203  * Call tgetent()
2204  * Return error message if it fails, NULL if it's OK.
2205  */
2206     static char *
tgetent_error(char_u * tbuf,char_u * term)2207 tgetent_error(char_u *tbuf, char_u *term)
2208 {
2209     int	    i;
2210 
2211     // Note: Valgrind may report a leak here, because the library keeps one
2212     // buffer around that we can't ever free.
2213     i = TGETENT(tbuf, term);
2214     if (i < 0		    // -1 is always an error
2215 # ifdef TGETENT_ZERO_ERR
2216 	    || i == 0	    // sometimes zero is also an error
2217 # endif
2218        )
2219     {
2220 	// On FreeBSD tputs() gets a SEGV after a tgetent() which fails.  Call
2221 	// tgetent() with the always existing "dumb" entry to avoid a crash or
2222 	// hang.
2223 	(void)TGETENT(tbuf, "dumb");
2224 
2225 	if (i < 0)
2226 # ifdef TGETENT_ZERO_ERR
2227 	    return _("E557: Cannot open termcap file");
2228 	if (i == 0)
2229 # endif
2230 #ifdef TERMINFO
2231 	    return _("E558: Terminal entry not found in terminfo");
2232 #else
2233 	    return _("E559: Terminal entry not found in termcap");
2234 #endif
2235     }
2236     return NULL;
2237 }
2238 
2239 /*
2240  * Some versions of tgetstr() have been reported to return -1 instead of NULL.
2241  * Fix that here.
2242  */
2243     static char_u *
vim_tgetstr(char * s,char_u ** pp)2244 vim_tgetstr(char *s, char_u **pp)
2245 {
2246     char	*p;
2247 
2248     p = tgetstr(s, (char **)pp);
2249     if (p == (char *)-1)
2250 	p = NULL;
2251     return (char_u *)p;
2252 }
2253 #endif // HAVE_TGETENT
2254 
2255 #if defined(HAVE_TGETENT) && (defined(UNIX) || defined(VMS) || defined(MACOS_X))
2256 /*
2257  * Get Columns and Rows from the termcap. Used after a window signal if the
2258  * ioctl() fails. It doesn't make sense to call tgetent each time if the "co"
2259  * and "li" entries never change. But on some systems this works.
2260  * Errors while getting the entries are ignored.
2261  */
2262     void
getlinecol(long * cp,long * rp)2263 getlinecol(
2264     long	*cp,	// pointer to columns
2265     long	*rp)	// pointer to rows
2266 {
2267     char_u	tbuf[TBUFSZ];
2268 
2269     if (T_NAME != NULL && *T_NAME != NUL && tgetent_error(tbuf, T_NAME) == NULL)
2270     {
2271 	if (*cp == 0)
2272 	    *cp = tgetnum("co");
2273 	if (*rp == 0)
2274 	    *rp = tgetnum("li");
2275     }
2276 }
2277 #endif // defined(HAVE_TGETENT) && defined(UNIX)
2278 
2279 /*
2280  * Get a string entry from the termcap and add it to the list of termcodes.
2281  * Used for <t_xx> special keys.
2282  * Give an error message for failure when not sourcing.
2283  * If force given, replace an existing entry.
2284  * Return FAIL if the entry was not found, OK if the entry was added.
2285  */
2286     int
add_termcap_entry(char_u * name,int force)2287 add_termcap_entry(char_u *name, int force)
2288 {
2289     char_u  *term;
2290     int	    key;
2291     struct builtin_term *termp;
2292 #ifdef HAVE_TGETENT
2293     char_u  *string;
2294     int	    i;
2295     int	    builtin_first;
2296     char_u  tbuf[TBUFSZ];
2297     char_u  tstrbuf[TBUFSZ];
2298     char_u  *tp = tstrbuf;
2299     char    *error_msg = NULL;
2300 #endif
2301 
2302 /*
2303  * If the GUI is running or will start in a moment, we only support the keys
2304  * that the GUI can produce.
2305  */
2306 #ifdef FEAT_GUI
2307     if (gui.in_use || gui.starting)
2308 	return gui_mch_haskey(name);
2309 #endif
2310 
2311     if (!force && find_termcode(name) != NULL)	    // it's already there
2312 	return OK;
2313 
2314     term = T_NAME;
2315     if (term == NULL || *term == NUL)	    // 'term' not defined yet
2316 	return FAIL;
2317 
2318     if (term_is_builtin(term))		    // name starts with "builtin_"
2319     {
2320 	term += 8;
2321 #ifdef HAVE_TGETENT
2322 	builtin_first = TRUE;
2323 #endif
2324     }
2325 #ifdef HAVE_TGETENT
2326     else
2327 	builtin_first = p_tbi;
2328 #endif
2329 
2330 #ifdef HAVE_TGETENT
2331 /*
2332  * We can get the entry from the builtin termcap and from the external one.
2333  * If 'ttybuiltin' is on or the terminal name starts with "builtin_", try
2334  * builtin termcap first.
2335  * If 'ttybuiltin' is off, try external termcap first.
2336  */
2337     for (i = 0; i < 2; ++i)
2338     {
2339 	if ((!builtin_first) == i)
2340 #endif
2341 	/*
2342 	 * Search in builtin termcap
2343 	 */
2344 	{
2345 	    termp = find_builtin_term(term);
2346 	    if (termp->bt_string != NULL)	// found it
2347 	    {
2348 		key = TERMCAP2KEY(name[0], name[1]);
2349 		++termp;
2350 		while (termp->bt_entry != (int)KS_NAME)
2351 		{
2352 		    if ((int)termp->bt_entry == key)
2353 		    {
2354 			add_termcode(name, (char_u *)termp->bt_string,
2355 							  term_is_8bit(term));
2356 			return OK;
2357 		    }
2358 		    ++termp;
2359 		}
2360 	    }
2361 	}
2362 #ifdef HAVE_TGETENT
2363 	else
2364 	/*
2365 	 * Search in external termcap
2366 	 */
2367 	{
2368 	    error_msg = tgetent_error(tbuf, term);
2369 	    if (error_msg == NULL)
2370 	    {
2371 		string = TGETSTR((char *)name, &tp);
2372 		if (string != NULL && *string != NUL)
2373 		{
2374 		    add_termcode(name, string, FALSE);
2375 		    return OK;
2376 		}
2377 	    }
2378 	}
2379     }
2380 #endif
2381 
2382     if (SOURCING_NAME == NULL)
2383     {
2384 #ifdef HAVE_TGETENT
2385 	if (error_msg != NULL)
2386 	    emsg(error_msg);
2387 	else
2388 #endif
2389 	    semsg(_("E436: No \"%s\" entry in termcap"), name);
2390     }
2391     return FAIL;
2392 }
2393 
2394     static int
term_is_builtin(char_u * name)2395 term_is_builtin(char_u *name)
2396 {
2397     return (STRNCMP(name, "builtin_", (size_t)8) == 0);
2398 }
2399 
2400 /*
2401  * Return TRUE if terminal "name" uses CSI instead of <Esc>[.
2402  * Assume that the terminal is using 8-bit controls when the name contains
2403  * "8bit", like in "xterm-8bit".
2404  */
2405     int
term_is_8bit(char_u * name)2406 term_is_8bit(char_u *name)
2407 {
2408     return (detected_8bit || strstr((char *)name, "8bit") != NULL);
2409 }
2410 
2411 /*
2412  * Translate terminal control chars from 7-bit to 8-bit:
2413  * <Esc>[ -> CSI  <M_C_[>
2414  * <Esc>] -> OSC  <M-C-]>
2415  * <Esc>O -> <M-C-O>
2416  */
2417     static int
term_7to8bit(char_u * p)2418 term_7to8bit(char_u *p)
2419 {
2420     if (*p == ESC)
2421     {
2422 	if (p[1] == '[')
2423 	    return CSI;
2424 	if (p[1] == ']')
2425 	    return OSC;
2426 	if (p[1] == 'O')
2427 	    return 0x8f;
2428     }
2429     return 0;
2430 }
2431 
2432 #if defined(FEAT_GUI) || defined(PROTO)
2433     int
term_is_gui(char_u * name)2434 term_is_gui(char_u *name)
2435 {
2436     return (STRCMP(name, "builtin_gui") == 0 || STRCMP(name, "gui") == 0);
2437 }
2438 #endif
2439 
2440 #if !defined(HAVE_TGETENT) || defined(AMIGA) || defined(PROTO)
2441 
2442     char_u *
tltoa(unsigned long i)2443 tltoa(unsigned long i)
2444 {
2445     static char_u buf[16];
2446     char_u	*p;
2447 
2448     p = buf + 15;
2449     *p = '\0';
2450     do
2451     {
2452 	--p;
2453 	*p = (char_u) (i % 10 + '0');
2454 	i /= 10;
2455     }
2456     while (i > 0 && p > buf);
2457     return p;
2458 }
2459 #endif
2460 
2461 #ifndef HAVE_TGETENT
2462 
2463 /*
2464  * minimal tgoto() implementation.
2465  * no padding and we only parse for %i %d and %+char
2466  */
2467     static char *
tgoto(char * cm,int x,int y)2468 tgoto(char *cm, int x, int y)
2469 {
2470     static char buf[30];
2471     char *p, *s, *e;
2472 
2473     if (!cm)
2474 	return "OOPS";
2475     e = buf + 29;
2476     for (s = buf; s < e && *cm; cm++)
2477     {
2478 	if (*cm != '%')
2479 	{
2480 	    *s++ = *cm;
2481 	    continue;
2482 	}
2483 	switch (*++cm)
2484 	{
2485 	case 'd':
2486 	    p = (char *)tltoa((unsigned long)y);
2487 	    y = x;
2488 	    while (*p)
2489 		*s++ = *p++;
2490 	    break;
2491 	case 'i':
2492 	    x++;
2493 	    y++;
2494 	    break;
2495 	case '+':
2496 	    *s++ = (char)(*++cm + y);
2497 	    y = x;
2498 	    break;
2499 	case '%':
2500 	    *s++ = *cm;
2501 	    break;
2502 	default:
2503 	    return "OOPS";
2504 	}
2505     }
2506     *s = '\0';
2507     return buf;
2508 }
2509 
2510 #endif // HAVE_TGETENT
2511 
2512 /*
2513  * Set the terminal name and initialize the terminal options.
2514  * If "name" is NULL or empty, get the terminal name from the environment.
2515  * If that fails, use the default terminal name.
2516  */
2517     void
termcapinit(char_u * name)2518 termcapinit(char_u *name)
2519 {
2520     char_u	*term;
2521 
2522     if (name != NULL && *name == NUL)
2523 	name = NULL;	    // empty name is equal to no name
2524     term = name;
2525 
2526 #ifndef MSWIN
2527     if (term == NULL)
2528 	term = mch_getenv((char_u *)"TERM");
2529 #endif
2530     if (term == NULL || *term == NUL)
2531 	term = DEFAULT_TERM;
2532     set_string_option_direct((char_u *)"term", -1, term, OPT_FREE, 0);
2533 
2534     // Set the default terminal name.
2535     set_string_default("term", term);
2536     set_string_default("ttytype", term);
2537 
2538     /*
2539      * Avoid using "term" here, because the next mch_getenv() may overwrite it.
2540      */
2541     set_termname(T_NAME != NULL ? T_NAME : term);
2542 }
2543 
2544 /*
2545  * The number of calls to ui_write is reduced by using "out_buf".
2546  */
2547 #define OUT_SIZE	2047
2548 
2549 // add one to allow mch_write() in os_win32.c to append a NUL
2550 static char_u		out_buf[OUT_SIZE + 1];
2551 
2552 static int		out_pos = 0;	// number of chars in out_buf
2553 
2554 // Since the maximum number of SGR parameters shown as a normal value range is
2555 // 16, the escape sequence length can be 4 * 16 + lead + tail.
2556 #define MAX_ESC_SEQ_LEN	80
2557 
2558 /*
2559  * out_flush(): flush the output buffer
2560  */
2561     void
out_flush(void)2562 out_flush(void)
2563 {
2564     int	    len;
2565 
2566     if (out_pos != 0)
2567     {
2568 	// set out_pos to 0 before ui_write, to avoid recursiveness
2569 	len = out_pos;
2570 	out_pos = 0;
2571 	ui_write(out_buf, len, FALSE);
2572 #ifdef FEAT_JOB_CHANNEL
2573 	if (ch_log_output)
2574 	{
2575 	    out_buf[len] = NUL;
2576 	    ch_log(NULL, "raw %s output: \"%s\"",
2577 # ifdef FEAT_GUI
2578 			(gui.in_use && !gui.dying && !gui.starting) ? "GUI" :
2579 # endif
2580 			"terminal",
2581 			out_buf);
2582 	    ch_log_output = FALSE;
2583 	}
2584 #endif
2585     }
2586 }
2587 
2588 /*
2589  * out_flush_cursor(): flush the output buffer and redraw the cursor.
2590  * Does not flush recursively in the GUI to avoid slow drawing.
2591  */
2592     void
out_flush_cursor(int force UNUSED,int clear_selection UNUSED)2593 out_flush_cursor(
2594     int	    force UNUSED,   // when TRUE, update cursor even when not moved
2595     int	    clear_selection UNUSED) // clear selection under cursor
2596 {
2597     mch_disable_flush();
2598     out_flush();
2599     mch_enable_flush();
2600 #ifdef FEAT_GUI
2601     if (gui.in_use)
2602     {
2603 	gui_update_cursor(force, clear_selection);
2604 	gui_may_flush();
2605     }
2606 #endif
2607 }
2608 
2609 
2610 /*
2611  * Sometimes a byte out of a multi-byte character is written with out_char().
2612  * To avoid flushing half of the character, call this function first.
2613  */
2614     void
out_flush_check(void)2615 out_flush_check(void)
2616 {
2617     if (enc_dbcs != 0 && out_pos >= OUT_SIZE - MB_MAXBYTES)
2618 	out_flush();
2619 }
2620 
2621 #ifdef FEAT_GUI
2622 /*
2623  * out_trash(): Throw away the contents of the output buffer
2624  */
2625     void
out_trash(void)2626 out_trash(void)
2627 {
2628     out_pos = 0;
2629 }
2630 #endif
2631 
2632 /*
2633  * out_char(c): put a byte into the output buffer.
2634  *		Flush it if it becomes full.
2635  * This should not be used for outputting text on the screen (use functions
2636  * like msg_puts() and screen_putchar() for that).
2637  */
2638     void
out_char(unsigned c)2639 out_char(unsigned c)
2640 {
2641 #if defined(UNIX) || defined(VMS) || defined(AMIGA) || defined(MACOS_X)
2642     if (c == '\n')	// turn LF into CR-LF (CRMOD doesn't seem to do this)
2643 	out_char('\r');
2644 #endif
2645 
2646     out_buf[out_pos++] = c;
2647 
2648     // For testing we flush each time.
2649     if (out_pos >= OUT_SIZE || p_wd)
2650 	out_flush();
2651 }
2652 
2653 /*
2654  * Output "c" like out_char(), but don't flush when p_wd is set.
2655  */
2656     static int
out_char_nf(int c)2657 out_char_nf(int c)
2658 {
2659     out_buf[out_pos++] = (unsigned)c;
2660 
2661     if (out_pos >= OUT_SIZE)
2662 	out_flush();
2663     return (unsigned)c;
2664 }
2665 
2666 /*
2667  * A never-padding out_str().
2668  * Use this whenever you don't want to run the string through tputs().
2669  * tputs() above is harmless, but tputs() from the termcap library
2670  * is likely to strip off leading digits, that it mistakes for padding
2671  * information, and "%i", "%d", etc.
2672  * This should only be used for writing terminal codes, not for outputting
2673  * normal text (use functions like msg_puts() and screen_putchar() for that).
2674  */
2675     void
out_str_nf(char_u * s)2676 out_str_nf(char_u *s)
2677 {
2678     // avoid terminal strings being split up
2679     if (out_pos > OUT_SIZE - MAX_ESC_SEQ_LEN)
2680 	out_flush();
2681 
2682     while (*s)
2683 	out_char_nf(*s++);
2684 
2685     // For testing we write one string at a time.
2686     if (p_wd)
2687 	out_flush();
2688 }
2689 
2690 /*
2691  * A conditional-flushing out_str, mainly for visualbell.
2692  * Handles a delay internally, because termlib may not respect the delay or do
2693  * it at the wrong time.
2694  * Note: Only for terminal strings.
2695  */
2696     void
out_str_cf(char_u * s)2697 out_str_cf(char_u *s)
2698 {
2699     if (s != NULL && *s)
2700     {
2701 #ifdef HAVE_TGETENT
2702 	char_u *p;
2703 #endif
2704 
2705 #ifdef FEAT_GUI
2706 	// Don't use tputs() when GUI is used, ncurses crashes.
2707 	if (gui.in_use)
2708 	{
2709 	    out_str_nf(s);
2710 	    return;
2711 	}
2712 #endif
2713 	if (out_pos > OUT_SIZE - MAX_ESC_SEQ_LEN)
2714 	    out_flush();
2715 #ifdef HAVE_TGETENT
2716 	for (p = s; *s; ++s)
2717 	{
2718 	    // flush just before delay command
2719 	    if (*s == '$' && *(s + 1) == '<')
2720 	    {
2721 		char_u save_c = *s;
2722 		int duration = atoi((char *)s + 2);
2723 
2724 		*s = NUL;
2725 		tputs((char *)p, 1, TPUTSFUNCAST out_char_nf);
2726 		*s = save_c;
2727 		out_flush();
2728 # ifdef ELAPSED_FUNC
2729 		// Only sleep here if we can limit this happening in
2730 		// vim_beep().
2731 		p = vim_strchr(s, '>');
2732 		if (p == NULL || duration <= 0)
2733 		{
2734 		    // can't parse the time, don't sleep here
2735 		    p = s;
2736 		}
2737 		else
2738 		{
2739 		    ++p;
2740 		    do_sleep(duration, FALSE);
2741 		}
2742 # else
2743 		// Rely on the terminal library to sleep.
2744 		p = s;
2745 # endif
2746 		break;
2747 	    }
2748 	}
2749 	tputs((char *)p, 1, TPUTSFUNCAST out_char_nf);
2750 #else
2751 	while (*s)
2752 	    out_char_nf(*s++);
2753 #endif
2754 
2755 	// For testing we write one string at a time.
2756 	if (p_wd)
2757 	    out_flush();
2758     }
2759 }
2760 
2761 /*
2762  * out_str(s): Put a character string a byte at a time into the output buffer.
2763  * If HAVE_TGETENT is defined use tputs(), the termcap parser. (jw)
2764  * This should only be used for writing terminal codes, not for outputting
2765  * normal text (use functions like msg_puts() and screen_putchar() for that).
2766  */
2767     void
out_str(char_u * s)2768 out_str(char_u *s)
2769 {
2770     if (s != NULL && *s)
2771     {
2772 #ifdef FEAT_GUI
2773 	// Don't use tputs() when GUI is used, ncurses crashes.
2774 	if (gui.in_use)
2775 	{
2776 	    out_str_nf(s);
2777 	    return;
2778 	}
2779 #endif
2780 	// avoid terminal strings being split up
2781 	if (out_pos > OUT_SIZE - MAX_ESC_SEQ_LEN)
2782 	    out_flush();
2783 #ifdef HAVE_TGETENT
2784 	tputs((char *)s, 1, TPUTSFUNCAST out_char_nf);
2785 #else
2786 	while (*s)
2787 	    out_char_nf(*s++);
2788 #endif
2789 
2790 	// For testing we write one string at a time.
2791 	if (p_wd)
2792 	    out_flush();
2793     }
2794 }
2795 
2796 /*
2797  * cursor positioning using termcap parser. (jw)
2798  */
2799     void
term_windgoto(int row,int col)2800 term_windgoto(int row, int col)
2801 {
2802     OUT_STR(tgoto((char *)T_CM, col, row));
2803 }
2804 
2805     void
term_cursor_right(int i)2806 term_cursor_right(int i)
2807 {
2808     OUT_STR(tgoto((char *)T_CRI, 0, i));
2809 }
2810 
2811     void
term_append_lines(int line_count)2812 term_append_lines(int line_count)
2813 {
2814     OUT_STR(tgoto((char *)T_CAL, 0, line_count));
2815 }
2816 
2817     void
term_delete_lines(int line_count)2818 term_delete_lines(int line_count)
2819 {
2820     OUT_STR(tgoto((char *)T_CDL, 0, line_count));
2821 }
2822 
2823 #if defined(HAVE_TGETENT) || defined(PROTO)
2824     void
term_set_winpos(int x,int y)2825 term_set_winpos(int x, int y)
2826 {
2827     // Can't handle a negative value here
2828     if (x < 0)
2829 	x = 0;
2830     if (y < 0)
2831 	y = 0;
2832     OUT_STR(tgoto((char *)T_CWP, y, x));
2833 }
2834 
2835 # if defined(FEAT_TERMRESPONSE) || defined(PROTO)
2836 /*
2837  * Return TRUE if we can request the terminal for a response.
2838  */
2839     static int
can_get_termresponse()2840 can_get_termresponse()
2841 {
2842     return cur_tmode == TMODE_RAW
2843 	    && termcap_active
2844 #  ifdef UNIX
2845 	    && (is_not_a_term() || (isatty(1) && isatty(read_cmd_fd)))
2846 #  endif
2847 	    && p_ek;
2848 }
2849 
2850 /*
2851  * Set "status" to STATUS_SENT.
2852  */
2853     static void
termrequest_sent(termrequest_T * status)2854 termrequest_sent(termrequest_T *status)
2855 {
2856     status->tr_progress = STATUS_SENT;
2857     status->tr_start = time(NULL);
2858 }
2859 
2860 /*
2861  * Return TRUE if any of the requests are in STATUS_SENT.
2862  */
2863     static int
termrequest_any_pending()2864 termrequest_any_pending()
2865 {
2866     int	    i;
2867     time_t  now = time(NULL);
2868 
2869     for (i = 0; all_termrequests[i] != NULL; ++i)
2870     {
2871 	if (all_termrequests[i]->tr_progress == STATUS_SENT)
2872 	{
2873 	    if (all_termrequests[i]->tr_start > 0 && now > 0
2874 				    && all_termrequests[i]->tr_start + 2 < now)
2875 		// Sent the request more than 2 seconds ago and didn't get a
2876 		// response, assume it failed.
2877 		all_termrequests[i]->tr_progress = STATUS_FAIL;
2878 	    else
2879 		return TRUE;
2880 	}
2881     }
2882     return FALSE;
2883 }
2884 
2885 static int winpos_x = -1;
2886 static int winpos_y = -1;
2887 static int did_request_winpos = 0;
2888 
2889 # if defined(FEAT_EVAL) || defined(FEAT_TERMINAL) || defined(PROTO)
2890 /*
2891  * Try getting the Vim window position from the terminal.
2892  * Returns OK or FAIL.
2893  */
2894     int
term_get_winpos(int * x,int * y,varnumber_T timeout)2895 term_get_winpos(int *x, int *y, varnumber_T timeout)
2896 {
2897     int count = 0;
2898     int prev_winpos_x = winpos_x;
2899     int prev_winpos_y = winpos_y;
2900 
2901     if (*T_CGP == NUL || !can_get_termresponse())
2902 	return FAIL;
2903     winpos_x = -1;
2904     winpos_y = -1;
2905     ++did_request_winpos;
2906     termrequest_sent(&winpos_status);
2907     OUT_STR(T_CGP);
2908     out_flush();
2909 
2910     // Try reading the result for "timeout" msec.
2911     while (count++ <= timeout / 10 && !got_int)
2912     {
2913 	(void)vpeekc_nomap();
2914 	if (winpos_x >= 0 && winpos_y >= 0)
2915 	{
2916 	    *x = winpos_x;
2917 	    *y = winpos_y;
2918 	    return OK;
2919 	}
2920 	ui_delay(10L, FALSE);
2921     }
2922     // Do not reset "did_request_winpos", if we timed out the response might
2923     // still come later and we must consume it.
2924 
2925     winpos_x = prev_winpos_x;
2926     winpos_y = prev_winpos_y;
2927     if (timeout < 10 && prev_winpos_y >= 0 && prev_winpos_x >= 0)
2928     {
2929 	// Polling: return previous values if we have them.
2930 	*x = winpos_x;
2931 	*y = winpos_y;
2932 	return OK;
2933     }
2934 
2935     return FALSE;
2936 }
2937 #  endif
2938 # endif
2939 
2940     void
term_set_winsize(int height,int width)2941 term_set_winsize(int height, int width)
2942 {
2943     OUT_STR(tgoto((char *)T_CWS, width, height));
2944 }
2945 #endif
2946 
2947     static void
term_color(char_u * s,int n)2948 term_color(char_u *s, int n)
2949 {
2950     char	buf[20];
2951     int		i = *s == CSI ? 1 : 2;
2952 		// index in s[] just after <Esc>[ or CSI
2953 
2954     // Special handling of 16 colors, because termcap can't handle it
2955     // Also accept "\e[3%dm" for TERMINFO, it is sometimes used
2956     // Also accept CSI instead of <Esc>[
2957     if (n >= 8 && t_colors >= 16
2958 	      && ((s[0] == ESC && s[1] == '[')
2959 #if defined(FEAT_VTP) && defined(FEAT_TERMGUICOLORS)
2960 		  || (s[0] == ESC && s[1] == '|')
2961 #endif
2962 		  || (s[0] == CSI && (i = 1) == 1))
2963 	      && s[i] != NUL
2964 	      && (STRCMP(s + i + 1, "%p1%dm") == 0
2965 		  || STRCMP(s + i + 1, "%dm") == 0)
2966 	      && (s[i] == '3' || s[i] == '4'))
2967     {
2968 #ifdef TERMINFO
2969 	char *format = "%s%s%%p1%%dm";
2970 #else
2971 	char *format = "%s%s%%dm";
2972 #endif
2973 	char *lead = i == 2 ? (
2974 #if defined(FEAT_VTP) && defined(FEAT_TERMGUICOLORS)
2975 		    s[1] == '|' ? IF_EB("\033|", ESC_STR "|") :
2976 #endif
2977 		    IF_EB("\033[", ESC_STR "[")) : "\233";
2978 	char *tail = s[i] == '3' ? (n >= 16 ? "38;5;" : "9")
2979 				 : (n >= 16 ? "48;5;" : "10");
2980 
2981 	sprintf(buf, format, lead, tail);
2982 	OUT_STR(tgoto(buf, 0, n >= 16 ? n : n - 8));
2983     }
2984     else
2985 	OUT_STR(tgoto((char *)s, 0, n));
2986 }
2987 
2988     void
term_fg_color(int n)2989 term_fg_color(int n)
2990 {
2991     // Use "AF" termcap entry if present, "Sf" entry otherwise
2992     if (*T_CAF)
2993 	term_color(T_CAF, n);
2994     else if (*T_CSF)
2995 	term_color(T_CSF, n);
2996 }
2997 
2998     void
term_bg_color(int n)2999 term_bg_color(int n)
3000 {
3001     // Use "AB" termcap entry if present, "Sb" entry otherwise
3002     if (*T_CAB)
3003 	term_color(T_CAB, n);
3004     else if (*T_CSB)
3005 	term_color(T_CSB, n);
3006 }
3007 
3008     void
term_ul_color(int n)3009 term_ul_color(int n)
3010 {
3011     if (*T_CAU)
3012 	term_color(T_CAU, n);
3013 }
3014 
3015 /*
3016  * Return "dark" or "light" depending on the kind of terminal.
3017  * This is just guessing!  Recognized are:
3018  * "linux"	    Linux console
3019  * "screen.linux"   Linux console with screen
3020  * "cygwin.*"	    Cygwin shell
3021  * "putty.*"	    Putty program
3022  * We also check the COLORFGBG environment variable, which is set by
3023  * rxvt and derivatives. This variable contains either two or three
3024  * values separated by semicolons; we want the last value in either
3025  * case. If this value is 0-6 or 8, our background is dark.
3026  */
3027     char_u *
term_bg_default(void)3028 term_bg_default(void)
3029 {
3030 #if defined(MSWIN)
3031     // DOS console is nearly always black
3032     return (char_u *)"dark";
3033 #else
3034     char_u	*p;
3035 
3036     if (STRCMP(T_NAME, "linux") == 0
3037 	    || STRCMP(T_NAME, "screen.linux") == 0
3038 	    || STRNCMP(T_NAME, "cygwin", 6) == 0
3039 	    || STRNCMP(T_NAME, "putty", 5) == 0
3040 	    || ((p = mch_getenv((char_u *)"COLORFGBG")) != NULL
3041 		&& (p = vim_strrchr(p, ';')) != NULL
3042 		&& ((p[1] >= '0' && p[1] <= '6') || p[1] == '8')
3043 		&& p[2] == NUL))
3044 	return (char_u *)"dark";
3045     return (char_u *)"light";
3046 #endif
3047 }
3048 
3049 #if defined(FEAT_TERMGUICOLORS) || defined(PROTO)
3050 
3051 #define RED(rgb)   (((long_u)(rgb) >> 16) & 0xFF)
3052 #define GREEN(rgb) (((long_u)(rgb) >>  8) & 0xFF)
3053 #define BLUE(rgb)  (((long_u)(rgb)      ) & 0xFF)
3054 
3055     static void
term_rgb_color(char_u * s,guicolor_T rgb)3056 term_rgb_color(char_u *s, guicolor_T rgb)
3057 {
3058 #define MAX_COLOR_STR_LEN 100
3059     char	buf[MAX_COLOR_STR_LEN];
3060 
3061     vim_snprintf(buf, MAX_COLOR_STR_LEN,
3062 				  (char *)s, RED(rgb), GREEN(rgb), BLUE(rgb));
3063 #ifdef FEAT_VTP
3064     if (use_wt())
3065     {
3066 	out_flush();
3067 	buf[1] = '[';
3068 	vtp_printf(buf);
3069     }
3070     else
3071 #endif
3072 	OUT_STR(buf);
3073 }
3074 
3075     void
term_fg_rgb_color(guicolor_T rgb)3076 term_fg_rgb_color(guicolor_T rgb)
3077 {
3078     term_rgb_color(T_8F, rgb);
3079 }
3080 
3081     void
term_bg_rgb_color(guicolor_T rgb)3082 term_bg_rgb_color(guicolor_T rgb)
3083 {
3084     term_rgb_color(T_8B, rgb);
3085 }
3086 
3087     void
term_ul_rgb_color(guicolor_T rgb)3088 term_ul_rgb_color(guicolor_T rgb)
3089 {
3090     term_rgb_color(T_8U, rgb);
3091 }
3092 #endif
3093 
3094 #if (defined(FEAT_TITLE) && (defined(UNIX) || defined(VMS) \
3095 	|| defined(MACOS_X))) || defined(PROTO)
3096 /*
3097  * Generic function to set window title, using t_ts and t_fs.
3098  */
3099     void
term_settitle(char_u * title)3100 term_settitle(char_u *title)
3101 {
3102 #ifdef FEAT_JOB_CHANNEL
3103     ch_log_output = TRUE;
3104 #endif
3105     // t_ts takes one argument: column in status line
3106     OUT_STR(tgoto((char *)T_TS, 0, 0));	// set title start
3107     out_str_nf(title);
3108     out_str(T_FS);			// set title end
3109     out_flush();
3110 }
3111 
3112 /*
3113  * Tell the terminal to push (save) the title and/or icon, so that it can be
3114  * popped (restored) later.
3115  */
3116     void
term_push_title(int which)3117 term_push_title(int which)
3118 {
3119     if ((which & SAVE_RESTORE_TITLE) && T_CST != NULL && *T_CST != NUL)
3120     {
3121 	OUT_STR(T_CST);
3122 	out_flush();
3123     }
3124 
3125     if ((which & SAVE_RESTORE_ICON) && T_SSI != NULL && *T_SSI != NUL)
3126     {
3127 	OUT_STR(T_SSI);
3128 	out_flush();
3129     }
3130 }
3131 
3132 /*
3133  * Tell the terminal to pop the title and/or icon.
3134  */
3135     void
term_pop_title(int which)3136 term_pop_title(int which)
3137 {
3138     if ((which & SAVE_RESTORE_TITLE) && T_CRT != NULL && *T_CRT != NUL)
3139     {
3140 	OUT_STR(T_CRT);
3141 	out_flush();
3142     }
3143 
3144     if ((which & SAVE_RESTORE_ICON) && T_SRI != NULL && *T_SRI != NUL)
3145     {
3146 	OUT_STR(T_SRI);
3147 	out_flush();
3148     }
3149 }
3150 #endif
3151 
3152 /*
3153  * Make sure we have a valid set or terminal options.
3154  * Replace all entries that are NULL by empty_option
3155  */
3156     void
ttest(int pairs)3157 ttest(int pairs)
3158 {
3159     char_u *env_colors;
3160 
3161     check_options();		    // make sure no options are NULL
3162 
3163     /*
3164      * MUST have "cm": cursor motion.
3165      */
3166     if (*T_CM == NUL)
3167 	emsg(_("E437: terminal capability \"cm\" required"));
3168 
3169     /*
3170      * if "cs" defined, use a scroll region, it's faster.
3171      */
3172     if (*T_CS != NUL)
3173 	scroll_region = TRUE;
3174     else
3175 	scroll_region = FALSE;
3176 
3177     if (pairs)
3178     {
3179 	/*
3180 	 * optional pairs
3181 	 */
3182 	// TP goes to normal mode for TI (invert) and TB (bold)
3183 	if (*T_ME == NUL)
3184 	    T_ME = T_MR = T_MD = T_MB = empty_option;
3185 	if (*T_SO == NUL || *T_SE == NUL)
3186 	    T_SO = T_SE = empty_option;
3187 	if (*T_US == NUL || *T_UE == NUL)
3188 	    T_US = T_UE = empty_option;
3189 	if (*T_CZH == NUL || *T_CZR == NUL)
3190 	    T_CZH = T_CZR = empty_option;
3191 
3192 	// T_VE is needed even though T_VI is not defined
3193 	if (*T_VE == NUL)
3194 	    T_VI = empty_option;
3195 
3196 	// if 'mr' or 'me' is not defined use 'so' and 'se'
3197 	if (*T_ME == NUL)
3198 	{
3199 	    T_ME = T_SE;
3200 	    T_MR = T_SO;
3201 	    T_MD = T_SO;
3202 	}
3203 
3204 	// if 'so' or 'se' is not defined use 'mr' and 'me'
3205 	if (*T_SO == NUL)
3206 	{
3207 	    T_SE = T_ME;
3208 	    if (*T_MR == NUL)
3209 		T_SO = T_MD;
3210 	    else
3211 		T_SO = T_MR;
3212 	}
3213 
3214 	// if 'ZH' or 'ZR' is not defined use 'mr' and 'me'
3215 	if (*T_CZH == NUL)
3216 	{
3217 	    T_CZR = T_ME;
3218 	    if (*T_MR == NUL)
3219 		T_CZH = T_MD;
3220 	    else
3221 		T_CZH = T_MR;
3222 	}
3223 
3224 	// "Sb" and "Sf" come in pairs
3225 	if (*T_CSB == NUL || *T_CSF == NUL)
3226 	{
3227 	    T_CSB = empty_option;
3228 	    T_CSF = empty_option;
3229 	}
3230 
3231 	// "AB" and "AF" come in pairs
3232 	if (*T_CAB == NUL || *T_CAF == NUL)
3233 	{
3234 	    T_CAB = empty_option;
3235 	    T_CAF = empty_option;
3236 	}
3237 
3238 	// if 'Sb' and 'AB' are not defined, reset "Co"
3239 	if (*T_CSB == NUL && *T_CAB == NUL)
3240 	    free_one_termoption(T_CCO);
3241 
3242 	// Set 'weirdinvert' according to value of 't_xs'
3243 	p_wiv = (*T_XS != NUL);
3244     }
3245     need_gather = TRUE;
3246 
3247     // Set t_colors to the value of $COLORS or t_Co.  Ignore $COLORS in the
3248     // GUI.
3249     t_colors = atoi((char *)T_CCO);
3250 #ifdef FEAT_GUI
3251     if (!gui.in_use)
3252 #endif
3253     {
3254 	env_colors = mch_getenv((char_u *)"COLORS");
3255 	if (env_colors != NULL && isdigit(*env_colors))
3256 	{
3257 	    int colors = atoi((char *)env_colors);
3258 
3259 	    if (colors != t_colors)
3260 		set_color_count(colors);
3261 	}
3262     }
3263 }
3264 
3265 #if (defined(FEAT_GUI) && (defined(FEAT_MENU) || !defined(USE_ON_FLY_SCROLL))) \
3266 	|| defined(PROTO)
3267 /*
3268  * Represent the given long_u as individual bytes, with the most significant
3269  * byte first, and store them in dst.
3270  */
3271     void
add_long_to_buf(long_u val,char_u * dst)3272 add_long_to_buf(long_u val, char_u *dst)
3273 {
3274     int	    i;
3275     int	    shift;
3276 
3277     for (i = 1; i <= (int)sizeof(long_u); i++)
3278     {
3279 	shift = 8 * (sizeof(long_u) - i);
3280 	dst[i - 1] = (char_u) ((val >> shift) & 0xff);
3281     }
3282 }
3283 
3284 /*
3285  * Interpret the next string of bytes in buf as a long integer, with the most
3286  * significant byte first.  Note that it is assumed that buf has been through
3287  * inchar(), so that NUL and K_SPECIAL will be represented as three bytes each.
3288  * Puts result in val, and returns the number of bytes read from buf
3289  * (between sizeof(long_u) and 2 * sizeof(long_u)), or -1 if not enough bytes
3290  * were present.
3291  */
3292     static int
get_long_from_buf(char_u * buf,long_u * val)3293 get_long_from_buf(char_u *buf, long_u *val)
3294 {
3295     int	    len;
3296     char_u  bytes[sizeof(long_u)];
3297     int	    i;
3298     int	    shift;
3299 
3300     *val = 0;
3301     len = get_bytes_from_buf(buf, bytes, (int)sizeof(long_u));
3302     if (len != -1)
3303     {
3304 	for (i = 0; i < (int)sizeof(long_u); i++)
3305 	{
3306 	    shift = 8 * (sizeof(long_u) - 1 - i);
3307 	    *val += (long_u)bytes[i] << shift;
3308 	}
3309     }
3310     return len;
3311 }
3312 #endif
3313 
3314 /*
3315  * Read the next num_bytes bytes from buf, and store them in bytes.  Assume
3316  * that buf has been through inchar().	Returns the actual number of bytes used
3317  * from buf (between num_bytes and num_bytes*2), or -1 if not enough bytes were
3318  * available.
3319  */
3320     int
get_bytes_from_buf(char_u * buf,char_u * bytes,int num_bytes)3321 get_bytes_from_buf(char_u *buf, char_u *bytes, int num_bytes)
3322 {
3323     int	    len = 0;
3324     int	    i;
3325     char_u  c;
3326 
3327     for (i = 0; i < num_bytes; i++)
3328     {
3329 	if ((c = buf[len++]) == NUL)
3330 	    return -1;
3331 	if (c == K_SPECIAL)
3332 	{
3333 	    if (buf[len] == NUL || buf[len + 1] == NUL)	    // cannot happen?
3334 		return -1;
3335 	    if (buf[len++] == (int)KS_ZERO)
3336 		c = NUL;
3337 	    // else it should be KS_SPECIAL; when followed by KE_FILLER c is
3338 	    // K_SPECIAL, or followed by KE_CSI and c must be CSI.
3339 	    if (buf[len++] == (int)KE_CSI)
3340 		c = CSI;
3341 	}
3342 	else if (c == CSI && buf[len] == KS_EXTRA
3343 					       && buf[len + 1] == (int)KE_CSI)
3344 	    // CSI is stored as CSI KS_SPECIAL KE_CSI to avoid confusion with
3345 	    // the start of a special key, see add_to_input_buf_csi().
3346 	    len += 2;
3347 	bytes[i] = c;
3348     }
3349     return len;
3350 }
3351 
3352 /*
3353  * Check if the new shell size is valid, correct it if it's too small or way
3354  * too big.
3355  */
3356     void
check_shellsize(void)3357 check_shellsize(void)
3358 {
3359     if (Rows < min_rows())	// need room for one window and command line
3360 	Rows = min_rows();
3361     limit_screen_size();
3362 }
3363 
3364 /*
3365  * Limit Rows and Columns to avoid an overflow in Rows * Columns.
3366  */
3367     void
limit_screen_size(void)3368 limit_screen_size(void)
3369 {
3370     if (Columns < MIN_COLUMNS)
3371 	Columns = MIN_COLUMNS;
3372     else if (Columns > 10000)
3373 	Columns = 10000;
3374     if (Rows > 1000)
3375 	Rows = 1000;
3376 }
3377 
3378 /*
3379  * Invoked just before the screen structures are going to be (re)allocated.
3380  */
3381     void
win_new_shellsize(void)3382 win_new_shellsize(void)
3383 {
3384     static int	old_Rows = 0;
3385     static int	old_Columns = 0;
3386 
3387     if (old_Rows != Rows || old_Columns != Columns)
3388 	ui_new_shellsize();
3389     if (old_Rows != Rows)
3390     {
3391 	// If 'window' uses the whole screen, keep it using that.
3392 	// Don't change it when set with "-w size" on the command line.
3393 	if (p_window == old_Rows - 1 || (old_Rows == 0 && p_window == 0))
3394 	    p_window = Rows - 1;
3395 	old_Rows = Rows;
3396 	shell_new_rows();	// update window sizes
3397     }
3398     if (old_Columns != Columns)
3399     {
3400 	old_Columns = Columns;
3401 	shell_new_columns();	// update window sizes
3402     }
3403 }
3404 
3405 /*
3406  * Call this function when the Vim shell has been resized in any way.
3407  * Will obtain the current size and redraw (also when size didn't change).
3408  */
3409     void
shell_resized(void)3410 shell_resized(void)
3411 {
3412     set_shellsize(0, 0, FALSE);
3413 }
3414 
3415 /*
3416  * Check if the shell size changed.  Handle a resize.
3417  * When the size didn't change, nothing happens.
3418  */
3419     void
shell_resized_check(void)3420 shell_resized_check(void)
3421 {
3422     int		old_Rows = Rows;
3423     int		old_Columns = Columns;
3424 
3425     if (!exiting
3426 #ifdef FEAT_GUI
3427 	    // Do not get the size when executing a shell command during
3428 	    // startup.
3429 	    && !gui.starting
3430 #endif
3431 	    )
3432     {
3433 	(void)ui_get_shellsize();
3434 	check_shellsize();
3435 	if (old_Rows != Rows || old_Columns != Columns)
3436 	    shell_resized();
3437     }
3438 }
3439 
3440 /*
3441  * Set size of the Vim shell.
3442  * If 'mustset' is TRUE, we must set Rows and Columns, do not get the real
3443  * window size (this is used for the :win command).
3444  * If 'mustset' is FALSE, we may try to get the real window size and if
3445  * it fails use 'width' and 'height'.
3446  */
3447     void
set_shellsize(int width,int height,int mustset)3448 set_shellsize(int width, int height, int mustset)
3449 {
3450     static int		busy = FALSE;
3451 
3452     /*
3453      * Avoid recursiveness, can happen when setting the window size causes
3454      * another window-changed signal.
3455      */
3456     if (busy)
3457 	return;
3458 
3459     if (width < 0 || height < 0)    // just checking...
3460 	return;
3461 
3462     if (State == HITRETURN || State == SETWSIZE)
3463     {
3464 	// postpone the resizing
3465 	State = SETWSIZE;
3466 	return;
3467     }
3468 
3469     if (updating_screen)
3470 	// resizing while in update_screen() may cause a crash
3471 	return;
3472 
3473     // curwin->w_buffer can be NULL when we are closing a window and the
3474     // buffer (or window) has already been closed and removing a scrollbar
3475     // causes a resize event. Don't resize then, it will happen after entering
3476     // another buffer.
3477     if (curwin->w_buffer == NULL || curwin->w_lines == NULL)
3478 	return;
3479 
3480     ++busy;
3481 
3482 #ifdef AMIGA
3483     out_flush();	    // must do this before mch_get_shellsize() for
3484 			    // some obscure reason
3485 #endif
3486 
3487     if (mustset || (ui_get_shellsize() == FAIL && height != 0))
3488     {
3489 	Rows = height;
3490 	Columns = width;
3491 	check_shellsize();
3492 	ui_set_shellsize(mustset);
3493     }
3494     else
3495 	check_shellsize();
3496 
3497     // The window layout used to be adjusted here, but it now happens in
3498     // screenalloc() (also invoked from screenclear()).  That is because the
3499     // "busy" check above may skip this, but not screenalloc().
3500 
3501     if (State != ASKMORE && State != EXTERNCMD && State != CONFIRM)
3502 	screenclear();
3503     else
3504 	screen_start();	    // don't know where cursor is now
3505 
3506     if (starting != NO_SCREEN)
3507     {
3508 #ifdef FEAT_TITLE
3509 	maketitle();
3510 #endif
3511 	changed_line_abv_curs();
3512 	invalidate_botline();
3513 
3514 	/*
3515 	 * We only redraw when it's needed:
3516 	 * - While at the more prompt or executing an external command, don't
3517 	 *   redraw, but position the cursor.
3518 	 * - While editing the command line, only redraw that.
3519 	 * - in Ex mode, don't redraw anything.
3520 	 * - Otherwise, redraw right now, and position the cursor.
3521 	 * Always need to call update_screen() or screenalloc(), to make
3522 	 * sure Rows/Columns and the size of ScreenLines[] is correct!
3523 	 */
3524 	if (State == ASKMORE || State == EXTERNCMD || State == CONFIRM
3525 							     || exmode_active)
3526 	{
3527 	    screenalloc(FALSE);
3528 	    repeat_message();
3529 	}
3530 	else
3531 	{
3532 	    if (curwin->w_p_scb)
3533 		do_check_scrollbind(TRUE);
3534 	    if (State & CMDLINE)
3535 	    {
3536 		update_screen(NOT_VALID);
3537 		redrawcmdline();
3538 	    }
3539 	    else
3540 	    {
3541 		update_topline();
3542 		if (pum_visible())
3543 		{
3544 		    redraw_later(NOT_VALID);
3545 		    ins_compl_show_pum();
3546 		}
3547 		update_screen(NOT_VALID);
3548 		if (redrawing())
3549 		    setcursor();
3550 	    }
3551 	}
3552 	cursor_on();	    // redrawing may have switched it off
3553     }
3554     out_flush();
3555     --busy;
3556 }
3557 
3558 /*
3559  * Set the terminal to TMODE_RAW (for Normal mode) or TMODE_COOK (for external
3560  * commands and Ex mode).
3561  */
3562     void
settmode(tmode_T tmode)3563 settmode(tmode_T tmode)
3564 {
3565 #ifdef FEAT_GUI
3566     // don't set the term where gvim was started to any mode
3567     if (gui.in_use)
3568 	return;
3569 #endif
3570 
3571     if (full_screen)
3572     {
3573 	/*
3574 	 * When returning after calling a shell cur_tmode is TMODE_UNKNOWN,
3575 	 * set the terminal to raw mode, even though we think it already is,
3576 	 * because the shell program may have reset the terminal mode.
3577 	 * When we think the terminal is normal, don't try to set it to
3578 	 * normal again, because that causes problems (logout!) on some
3579 	 * machines.
3580 	 */
3581 	if (tmode != cur_tmode)
3582 	{
3583 #ifdef FEAT_TERMRESPONSE
3584 # ifdef FEAT_GUI
3585 	    if (!gui.in_use && !gui.starting)
3586 # endif
3587 	    {
3588 		// May need to check for T_CRV response and termcodes, it
3589 		// doesn't work in Cooked mode, an external program may get
3590 		// them.
3591 		if (tmode != TMODE_RAW && termrequest_any_pending())
3592 		    (void)vpeekc_nomap();
3593 		check_for_codes_from_term();
3594 	    }
3595 #endif
3596 	    if (tmode != TMODE_RAW)
3597 		mch_setmouse(FALSE);	// switch mouse off
3598 
3599 	    // Disable bracketed paste and modifyOtherKeys in cooked mode.
3600 	    // Avoid doing this too often, on some terminals the codes are not
3601 	    // handled properly.
3602 	    if (termcap_active && tmode != TMODE_SLEEP
3603 						   && cur_tmode != TMODE_SLEEP)
3604 	    {
3605 #ifdef FEAT_JOB_CHANNEL
3606 		ch_log_output = TRUE;
3607 #endif
3608 		if (tmode != TMODE_RAW)
3609 		{
3610 		    out_str(T_BD);	// disable bracketed paste mode
3611 		    out_str(T_CTE);	// possibly disables modifyOtherKeys
3612 		}
3613 		else
3614 		{
3615 		    out_str(T_BE);	// enable bracketed paste mode (should
3616 					// be before mch_settmode().
3617 		    out_str(T_CTI);	// possibly enables modifyOtherKeys
3618 		}
3619 	    }
3620 	    out_flush();
3621 	    mch_settmode(tmode);	// machine specific function
3622 	    cur_tmode = tmode;
3623 	    if (tmode == TMODE_RAW)
3624 		setmouse();		// may switch mouse on
3625 	    out_flush();
3626 	}
3627 #ifdef FEAT_TERMRESPONSE
3628 	may_req_termresponse();
3629 #endif
3630     }
3631 }
3632 
3633     void
starttermcap(void)3634 starttermcap(void)
3635 {
3636     if (full_screen && !termcap_active)
3637     {
3638 #ifdef FEAT_JOB_CHANNEL
3639 	ch_log_output = TRUE;
3640 #endif
3641 	out_str(T_TI);			// start termcap mode
3642 	out_str(T_CTI);			// start "raw" mode
3643 	out_str(T_KS);			// start "keypad transmit" mode
3644 	out_str(T_BE);			// enable bracketed paste mode
3645 
3646 #if defined(UNIX) || defined(VMS)
3647 	// Enable xterm's focus reporting mode when 'esckeys' is set.
3648 	if (focus_mode && p_ek && *T_FE != NUL)
3649 	    out_str(T_FE);
3650 #endif
3651 
3652 	out_flush();
3653 	termcap_active = TRUE;
3654 	screen_start();			// don't know where cursor is now
3655 #ifdef FEAT_TERMRESPONSE
3656 # ifdef FEAT_GUI
3657 	if (!gui.in_use && !gui.starting)
3658 # endif
3659 	{
3660 	    may_req_termresponse();
3661 	    // Immediately check for a response.  If t_Co changes, we don't
3662 	    // want to redraw with wrong colors first.
3663 	    if (crv_status.tr_progress == STATUS_SENT)
3664 		check_for_codes_from_term();
3665 	}
3666 #endif
3667     }
3668 }
3669 
3670     void
stoptermcap(void)3671 stoptermcap(void)
3672 {
3673     screen_stop_highlight();
3674     reset_cterm_colors();
3675     if (termcap_active)
3676     {
3677 #ifdef FEAT_TERMRESPONSE
3678 # ifdef FEAT_GUI
3679 	if (!gui.in_use && !gui.starting)
3680 # endif
3681 	{
3682 	    // May need to discard T_CRV, T_U7 or T_RBG response.
3683 	    if (termrequest_any_pending())
3684 	    {
3685 # ifdef UNIX
3686 		// Give the terminal a chance to respond.
3687 		mch_delay(100L, 0);
3688 # endif
3689 # ifdef TCIFLUSH
3690 		// Discard data received but not read.
3691 		if (exiting)
3692 		    tcflush(fileno(stdin), TCIFLUSH);
3693 # endif
3694 	    }
3695 	    // Check for termcodes first, otherwise an external program may
3696 	    // get them.
3697 	    check_for_codes_from_term();
3698 	}
3699 #endif
3700 #ifdef FEAT_JOB_CHANNEL
3701 	ch_log_output = TRUE;
3702 #endif
3703 
3704 #if defined(UNIX) || defined(VMS)
3705 	// Disable xterm's focus reporting mode if 'esckeys' is set.
3706 	if (focus_mode && p_ek && *T_FD != NUL)
3707 	    out_str(T_FD);
3708 #endif
3709 
3710 	out_str(T_BD);			// disable bracketed paste mode
3711 	out_str(T_KE);			// stop "keypad transmit" mode
3712 	out_flush();
3713 	termcap_active = FALSE;
3714 	cursor_on();			// just in case it is still off
3715 	out_str(T_CTE);			// stop "raw" mode
3716 	out_str(T_TE);			// stop termcap mode
3717 	screen_start();			// don't know where cursor is now
3718 	out_flush();
3719     }
3720 }
3721 
3722 #if defined(FEAT_TERMRESPONSE) || defined(PROTO)
3723 /*
3724  * Request version string (for xterm) when needed.
3725  * Only do this after switching to raw mode, otherwise the result will be
3726  * echoed.
3727  * Only do this after startup has finished, to avoid that the response comes
3728  * while executing "-c !cmd" or even after "-c quit".
3729  * Only do this after termcap mode has been started, otherwise the codes for
3730  * the cursor keys may be wrong.
3731  * Only do this when 'esckeys' is on, otherwise the response causes trouble in
3732  * Insert mode.
3733  * On Unix only do it when both output and input are a tty (avoid writing
3734  * request to terminal while reading from a file).
3735  * The result is caught in check_termcode().
3736  */
3737     void
may_req_termresponse(void)3738 may_req_termresponse(void)
3739 {
3740     if (crv_status.tr_progress == STATUS_GET
3741 	    && can_get_termresponse()
3742 	    && starting == 0
3743 	    && *T_CRV != NUL)
3744     {
3745 #ifdef FEAT_JOB_CHANNEL
3746 	ch_log_output = TRUE;
3747 #endif
3748 	LOG_TR(("Sending CRV request"));
3749 	out_str(T_CRV);
3750 	termrequest_sent(&crv_status);
3751 	// check for the characters now, otherwise they might be eaten by
3752 	// get_keystroke()
3753 	out_flush();
3754 	(void)vpeekc_nomap();
3755     }
3756 }
3757 
3758 /*
3759  * Send sequences to the terminal and check with t_u7 how the cursor moves, to
3760  * find out properties of the terminal.
3761  * Note that this goes out before T_CRV, so that the result can be used when
3762  * the termresponse arrives.
3763  */
3764     void
check_terminal_behavior(void)3765 check_terminal_behavior(void)
3766 {
3767     int	    did_send = FALSE;
3768 
3769     if (!can_get_termresponse() || starting != 0 || *T_U7 == NUL)
3770 	return;
3771 
3772     if (u7_status.tr_progress == STATUS_GET
3773 	    && !option_was_set((char_u *)"ambiwidth"))
3774     {
3775 	char_u	buf[16];
3776 
3777 	// Ambiguous width check.
3778 	// Check how the terminal treats ambiguous character width (UAX #11).
3779 	// First, we move the cursor to (1, 0) and print a test ambiguous
3780 	// character \u25bd (WHITE DOWN-POINTING TRIANGLE) and then query
3781 	// the current cursor position.  If the terminal treats \u25bd as
3782 	// single width, the position is (1, 1), or if it is treated as double
3783 	// width, that will be (1, 2).  This function has the side effect that
3784 	// changes cursor position, so it must be called immediately after
3785 	// entering termcap mode.
3786 #ifdef FEAT_JOB_CHANNEL
3787 	ch_log_output = TRUE;
3788 #endif
3789 	LOG_TR(("Sending request for ambiwidth check"));
3790 	// Do this in the second row.  In the first row the returned sequence
3791 	// may be CSI 1;2R, which is the same as <S-F3>.
3792 	term_windgoto(1, 0);
3793 	buf[mb_char2bytes(0x25bd, buf)] = NUL;
3794 	out_str(buf);
3795 	out_str(T_U7);
3796 	termrequest_sent(&u7_status);
3797 	out_flush();
3798 	did_send = TRUE;
3799 
3800 	// This overwrites a few characters on the screen, a redraw is needed
3801 	// after this. Clear them out for now.
3802 	screen_stop_highlight();
3803 	term_windgoto(1, 0);
3804 	out_str((char_u *)"  ");
3805 	line_was_clobbered(1);
3806     }
3807 
3808     if (xcc_status.tr_progress == STATUS_GET)
3809     {
3810 	// 2. Check compatibility with xterm.
3811 	// We move the cursor to (2, 0), print a test sequence and then query
3812 	// the current cursor position.  If the terminal properly handles
3813 	// unknown DCS string and CSI sequence with intermediate byte, the test
3814 	// sequence is ignored and the cursor does not move.  If the terminal
3815 	// handles test sequence incorrectly, a garbage string is displayed and
3816 	// the cursor does move.
3817 #ifdef FEAT_JOB_CHANNEL
3818 	ch_log_output = TRUE;
3819 #endif
3820 	LOG_TR(("Sending xterm compatibility test sequence."));
3821 	// Do this in the third row.  Second row is used by ambiguous
3822 	// character width check.
3823 	term_windgoto(2, 0);
3824 	// send the test DCS string.
3825 	out_str((char_u *)"\033Pzz\033\\");
3826 	// send the test CSI sequence with intermediate byte.
3827 	out_str((char_u *)"\033[0%m");
3828 	out_str(T_U7);
3829 	termrequest_sent(&xcc_status);
3830 	out_flush();
3831 	did_send = TRUE;
3832 
3833 	// If the terminal handles test sequence incorrectly, garbage text is
3834 	// displayed. Clear them out for now.
3835 	screen_stop_highlight();
3836 	term_windgoto(2, 0);
3837 	out_str((char_u *)"           ");
3838 	line_was_clobbered(2);
3839     }
3840 
3841     if (did_send)
3842     {
3843 	term_windgoto(0, 0);
3844 
3845 	// Need to reset the known cursor position.
3846 	screen_start();
3847 
3848 	// check for the characters now, otherwise they might be eaten by
3849 	// get_keystroke()
3850 	out_flush();
3851 	(void)vpeekc_nomap();
3852     }
3853 }
3854 
3855 /*
3856  * Similar to requesting the version string: Request the terminal background
3857  * color when it is the right moment.
3858  */
3859     void
may_req_bg_color(void)3860 may_req_bg_color(void)
3861 {
3862     if (can_get_termresponse() && starting == 0)
3863     {
3864 	int didit = FALSE;
3865 
3866 # ifdef FEAT_TERMINAL
3867 	// Only request foreground if t_RF is set.
3868 	if (rfg_status.tr_progress == STATUS_GET && *T_RFG != NUL)
3869 	{
3870 #ifdef FEAT_JOB_CHANNEL
3871 	    ch_log_output = TRUE;
3872 #endif
3873 	    LOG_TR(("Sending FG request"));
3874 	    out_str(T_RFG);
3875 	    termrequest_sent(&rfg_status);
3876 	    didit = TRUE;
3877 	}
3878 # endif
3879 
3880 	// Only request background if t_RB is set.
3881 	if (rbg_status.tr_progress == STATUS_GET && *T_RBG != NUL)
3882 	{
3883 #ifdef FEAT_JOB_CHANNEL
3884 	    ch_log_output = TRUE;
3885 #endif
3886 	    LOG_TR(("Sending BG request"));
3887 	    out_str(T_RBG);
3888 	    termrequest_sent(&rbg_status);
3889 	    didit = TRUE;
3890 	}
3891 
3892 	if (didit)
3893 	{
3894 	    // check for the characters now, otherwise they might be eaten by
3895 	    // get_keystroke()
3896 	    out_flush();
3897 	    (void)vpeekc_nomap();
3898 	}
3899     }
3900 }
3901 
3902 # ifdef DEBUG_TERMRESPONSE
3903     static void
log_tr(const char * fmt,...)3904 log_tr(const char *fmt, ...)
3905 {
3906     static FILE *fd_tr = NULL;
3907     static proftime_T start;
3908     proftime_T now;
3909     va_list ap;
3910 
3911     if (fd_tr == NULL)
3912     {
3913 	fd_tr = fopen("termresponse.log", "w");
3914 	profile_start(&start);
3915     }
3916     now = start;
3917     profile_end(&now);
3918     fprintf(fd_tr, "%s: %s ", profile_msg(&now),
3919 					must_redraw == NOT_VALID ? "NV"
3920 					: must_redraw == CLEAR ? "CL" : "  ");
3921     va_start(ap, fmt);
3922     vfprintf(fd_tr, fmt, ap);
3923     va_end(ap);
3924     fputc('\n', fd_tr);
3925     fflush(fd_tr);
3926 }
3927 # endif
3928 #endif
3929 
3930 /*
3931  * Return TRUE when saving and restoring the screen.
3932  */
3933     int
swapping_screen(void)3934 swapping_screen(void)
3935 {
3936     return (full_screen && *T_TI != NUL);
3937 }
3938 
3939 /*
3940  * By outputting the 'cursor very visible' termcap code, for some windowed
3941  * terminals this makes the screen scrolled to the correct position.
3942  * Used when starting Vim or returning from a shell.
3943  */
3944     void
scroll_start(void)3945 scroll_start(void)
3946 {
3947     if (*T_VS != NUL && *T_CVS != NUL)
3948     {
3949 #ifdef FEAT_JOB_CHANNEL
3950 	ch_log_output = TRUE;
3951 #endif
3952 	out_str(T_VS);
3953 	out_str(T_CVS);
3954 	screen_start();		// don't know where cursor is now
3955     }
3956 }
3957 
3958 // True if cursor is not visible
3959 static int cursor_is_off = FALSE;
3960 
3961 // True if cursor is not visible due to an ongoing cursor-less sleep
3962 static int cursor_is_asleep = FALSE;
3963 
3964 /*
3965  * Enable the cursor without checking if it's already enabled.
3966  */
3967     void
cursor_on_force(void)3968 cursor_on_force(void)
3969 {
3970     out_str(T_VE);
3971     cursor_is_off = FALSE;
3972     cursor_is_asleep = FALSE;
3973 }
3974 
3975 /*
3976  * Enable the cursor if it's currently off.
3977  */
3978     void
cursor_on(void)3979 cursor_on(void)
3980 {
3981     if (cursor_is_off && !cursor_is_asleep)
3982 	cursor_on_force();
3983 }
3984 
3985 /*
3986  * Disable the cursor.
3987  */
3988     void
cursor_off(void)3989 cursor_off(void)
3990 {
3991     if (full_screen && !cursor_is_off)
3992     {
3993 	out_str(T_VI);	    // disable cursor
3994 	cursor_is_off = TRUE;
3995     }
3996 }
3997 
3998 /*
3999  * Check whether the cursor is invisible due to an ongoing cursor-less sleep
4000  */
4001     int
cursor_is_sleeping(void)4002 cursor_is_sleeping(void)
4003 {
4004     return cursor_is_asleep;
4005 }
4006 
4007 /*
4008  * Disable the cursor and mark it disabled by cursor-less sleep
4009  */
4010     void
cursor_sleep(void)4011 cursor_sleep(void)
4012 {
4013     cursor_is_asleep = TRUE;
4014     cursor_off();
4015 }
4016 
4017 /*
4018  * Enable the cursor and mark it not disabled by cursor-less sleep
4019  */
4020     void
cursor_unsleep(void)4021 cursor_unsleep(void)
4022 {
4023     cursor_is_asleep = FALSE;
4024     cursor_on();
4025 }
4026 
4027 #if defined(CURSOR_SHAPE) || defined(PROTO)
4028 /*
4029  * Set cursor shape to match Insert or Replace mode.
4030  */
4031     void
term_cursor_mode(int forced)4032 term_cursor_mode(int forced)
4033 {
4034     static int showing_mode = -1;
4035     char_u *p;
4036 
4037     // Only do something when redrawing the screen and we can restore the
4038     // mode.
4039     if (!full_screen || *T_CEI == NUL)
4040     {
4041 # ifdef FEAT_TERMRESPONSE
4042 	if (forced && initial_cursor_shape > 0)
4043 	    // Restore to initial values.
4044 	    term_cursor_shape(initial_cursor_shape, initial_cursor_blink);
4045 # endif
4046 	return;
4047     }
4048 
4049     if ((State & REPLACE) == REPLACE)
4050     {
4051 	if (forced || showing_mode != REPLACE)
4052 	{
4053 	    if (*T_CSR != NUL)
4054 		p = T_CSR;	// Replace mode cursor
4055 	    else
4056 		p = T_CSI;	// fall back to Insert mode cursor
4057 	    if (*p != NUL)
4058 	    {
4059 		out_str(p);
4060 		showing_mode = REPLACE;
4061 	    }
4062 	}
4063     }
4064     else if (State & INSERT)
4065     {
4066 	if ((forced || showing_mode != INSERT) && *T_CSI != NUL)
4067 	{
4068 	    out_str(T_CSI);	    // Insert mode cursor
4069 	    showing_mode = INSERT;
4070 	}
4071     }
4072     else if (forced || showing_mode != NORMAL)
4073     {
4074 	out_str(T_CEI);		    // non-Insert mode cursor
4075 	showing_mode = NORMAL;
4076     }
4077 }
4078 
4079 # if defined(FEAT_TERMINAL) || defined(PROTO)
4080     void
term_cursor_color(char_u * color)4081 term_cursor_color(char_u *color)
4082 {
4083     if (*T_CSC != NUL)
4084     {
4085 	out_str(T_CSC);		// set cursor color start
4086 	out_str_nf(color);
4087 	out_str(T_CEC);		// set cursor color end
4088 	out_flush();
4089     }
4090 }
4091 # endif
4092 
4093     int
blink_state_is_inverted()4094 blink_state_is_inverted()
4095 {
4096 #ifdef FEAT_TERMRESPONSE
4097     return rbm_status.tr_progress == STATUS_GOT
4098 	&& rcs_status.tr_progress == STATUS_GOT
4099 		&& initial_cursor_blink != initial_cursor_shape_blink;
4100 #else
4101     return FALSE;
4102 #endif
4103 }
4104 
4105 /*
4106  * "shape": 1 = block, 2 = underline, 3 = vertical bar
4107  */
4108     void
term_cursor_shape(int shape,int blink)4109 term_cursor_shape(int shape, int blink)
4110 {
4111     if (*T_CSH != NUL)
4112     {
4113 	OUT_STR(tgoto((char *)T_CSH, 0, shape * 2 - blink));
4114 	out_flush();
4115     }
4116     else
4117     {
4118 	int do_blink = blink;
4119 
4120 	// t_SH is empty: try setting just the blink state.
4121 	// The blink flags are XORed together, if the initial blinking from
4122 	// style and shape differs, we need to invert the flag here.
4123 	if (blink_state_is_inverted())
4124 	    do_blink = !blink;
4125 
4126 	if (do_blink && *T_VS != NUL)
4127 	{
4128 	    out_str(T_VS);
4129 	    out_flush();
4130 	}
4131 	else if (!do_blink && *T_CVS != NUL)
4132 	{
4133 	    out_str(T_CVS);
4134 	    out_flush();
4135 	}
4136     }
4137 }
4138 #endif
4139 
4140 /*
4141  * Set scrolling region for window 'wp'.
4142  * The region starts 'off' lines from the start of the window.
4143  * Also set the vertical scroll region for a vertically split window.  Always
4144  * the full width of the window, excluding the vertical separator.
4145  */
4146     void
scroll_region_set(win_T * wp,int off)4147 scroll_region_set(win_T *wp, int off)
4148 {
4149     OUT_STR(tgoto((char *)T_CS, W_WINROW(wp) + wp->w_height - 1,
4150 							 W_WINROW(wp) + off));
4151     if (*T_CSV != NUL && wp->w_width != Columns)
4152 	OUT_STR(tgoto((char *)T_CSV, wp->w_wincol + wp->w_width - 1,
4153 							       wp->w_wincol));
4154     screen_start();		    // don't know where cursor is now
4155 }
4156 
4157 /*
4158  * Reset scrolling region to the whole screen.
4159  */
4160     void
scroll_region_reset(void)4161 scroll_region_reset(void)
4162 {
4163     OUT_STR(tgoto((char *)T_CS, (int)Rows - 1, 0));
4164     if (*T_CSV != NUL)
4165 	OUT_STR(tgoto((char *)T_CSV, (int)Columns - 1, 0));
4166     screen_start();		    // don't know where cursor is now
4167 }
4168 
4169 
4170 /*
4171  * List of terminal codes that are currently recognized.
4172  */
4173 
4174 static struct termcode
4175 {
4176     char_u  name[2];	    // termcap name of entry
4177     char_u  *code;	    // terminal code (in allocated memory)
4178     int	    len;	    // STRLEN(code)
4179     int	    modlen;	    // length of part before ";*~".
4180 } *termcodes = NULL;
4181 
4182 static int  tc_max_len = 0; // number of entries that termcodes[] can hold
4183 static int  tc_len = 0;	    // current number of entries in termcodes[]
4184 
4185 static int termcode_star(char_u *code, int len);
4186 
4187     void
clear_termcodes(void)4188 clear_termcodes(void)
4189 {
4190     while (tc_len > 0)
4191 	vim_free(termcodes[--tc_len].code);
4192     VIM_CLEAR(termcodes);
4193     tc_max_len = 0;
4194 
4195 #ifdef HAVE_TGETENT
4196     BC = (char *)empty_option;
4197     UP = (char *)empty_option;
4198     PC = NUL;			// set pad character to NUL
4199     ospeed = 0;
4200 #endif
4201 
4202     need_gather = TRUE;		// need to fill termleader[]
4203 }
4204 
4205 #define ATC_FROM_TERM 55
4206 
4207 /*
4208  * Add a new entry to the list of terminal codes.
4209  * The list is kept alphabetical for ":set termcap"
4210  * "flags" is TRUE when replacing 7-bit by 8-bit controls is desired.
4211  * "flags" can also be ATC_FROM_TERM for got_code_from_term().
4212  */
4213     void
add_termcode(char_u * name,char_u * string,int flags)4214 add_termcode(char_u *name, char_u *string, int flags)
4215 {
4216     struct termcode *new_tc;
4217     int		    i, j;
4218     char_u	    *s;
4219     int		    len;
4220 
4221     if (string == NULL || *string == NUL)
4222     {
4223 	del_termcode(name);
4224 	return;
4225     }
4226 
4227 #if defined(MSWIN) && !defined(FEAT_GUI)
4228     s = vim_strnsave(string, STRLEN(string) + 1);
4229 #else
4230 # ifdef VIMDLL
4231     if (!gui.in_use)
4232 	s = vim_strnsave(string, STRLEN(string) + 1);
4233     else
4234 # endif
4235 	s = vim_strsave(string);
4236 #endif
4237     if (s == NULL)
4238 	return;
4239 
4240     // Change leading <Esc>[ to CSI, change <Esc>O to <M-O>.
4241     if (flags != 0 && flags != ATC_FROM_TERM && term_7to8bit(string) != 0)
4242     {
4243 	STRMOVE(s, s + 1);
4244 	s[0] = term_7to8bit(string);
4245     }
4246 
4247 #if defined(MSWIN) && (!defined(FEAT_GUI) || defined(VIMDLL))
4248 # ifdef VIMDLL
4249     if (!gui.in_use)
4250 # endif
4251     {
4252 	if (s[0] == K_NUL)
4253 	{
4254 	    STRMOVE(s + 1, s);
4255 	    s[1] = 3;
4256 	}
4257     }
4258 #endif
4259 
4260     len = (int)STRLEN(s);
4261 
4262     need_gather = TRUE;		// need to fill termleader[]
4263 
4264     /*
4265      * need to make space for more entries
4266      */
4267     if (tc_len == tc_max_len)
4268     {
4269 	tc_max_len += 20;
4270 	new_tc = ALLOC_MULT(struct termcode, tc_max_len);
4271 	if (new_tc == NULL)
4272 	{
4273 	    tc_max_len -= 20;
4274 	    vim_free(s);
4275 	    return;
4276 	}
4277 	for (i = 0; i < tc_len; ++i)
4278 	    new_tc[i] = termcodes[i];
4279 	vim_free(termcodes);
4280 	termcodes = new_tc;
4281     }
4282 
4283     /*
4284      * Look for existing entry with the same name, it is replaced.
4285      * Look for an existing entry that is alphabetical higher, the new entry
4286      * is inserted in front of it.
4287      */
4288     for (i = 0; i < tc_len; ++i)
4289     {
4290 	if (termcodes[i].name[0] < name[0])
4291 	    continue;
4292 	if (termcodes[i].name[0] == name[0])
4293 	{
4294 	    if (termcodes[i].name[1] < name[1])
4295 		continue;
4296 	    /*
4297 	     * Exact match: May replace old code.
4298 	     */
4299 	    if (termcodes[i].name[1] == name[1])
4300 	    {
4301 		if (flags == ATC_FROM_TERM && (j = termcode_star(
4302 				    termcodes[i].code, termcodes[i].len)) > 0)
4303 		{
4304 		    // Don't replace ESC[123;*X or ESC O*X with another when
4305 		    // invoked from got_code_from_term().
4306 		    if (len == termcodes[i].len - j
4307 			    && STRNCMP(s, termcodes[i].code, len - 1) == 0
4308 			    && s[len - 1]
4309 				   == termcodes[i].code[termcodes[i].len - 1])
4310 		    {
4311 			// They are equal but for the ";*": don't add it.
4312 			vim_free(s);
4313 			return;
4314 		    }
4315 		}
4316 		else
4317 		{
4318 		    // Replace old code.
4319 		    vim_free(termcodes[i].code);
4320 		    --tc_len;
4321 		    break;
4322 		}
4323 	    }
4324 	}
4325 	/*
4326 	 * Found alphabetical larger entry, move rest to insert new entry
4327 	 */
4328 	for (j = tc_len; j > i; --j)
4329 	    termcodes[j] = termcodes[j - 1];
4330 	break;
4331     }
4332 
4333     termcodes[i].name[0] = name[0];
4334     termcodes[i].name[1] = name[1];
4335     termcodes[i].code = s;
4336     termcodes[i].len = len;
4337 
4338     // For xterm we recognize special codes like "ESC[42;*X" and "ESC O*X" that
4339     // accept modifiers.
4340     termcodes[i].modlen = 0;
4341     j = termcode_star(s, len);
4342     if (j > 0)
4343     {
4344 	termcodes[i].modlen = len - 1 - j;
4345 	// For "CSI[@;X" the "@" is not included in "modlen".
4346 	if (termcodes[i].code[termcodes[i].modlen - 1] == '@')
4347 	    --termcodes[i].modlen;
4348     }
4349     ++tc_len;
4350 }
4351 
4352 /*
4353  * Check termcode "code[len]" for ending in ;*X or *X.
4354  * The "X" can be any character.
4355  * Return 0 if not found, 2 for ;*X and 1 for *X.
4356  */
4357     static int
termcode_star(char_u * code,int len)4358 termcode_star(char_u *code, int len)
4359 {
4360     // Shortest is <M-O>*X.  With ; shortest is <CSI>@;*X
4361     if (len >= 3 && code[len - 2] == '*')
4362     {
4363 	if (len >= 5 && code[len - 3] == ';')
4364 	    return 2;
4365 	else
4366 	    return 1;
4367     }
4368     return 0;
4369 }
4370 
4371     char_u  *
find_termcode(char_u * name)4372 find_termcode(char_u *name)
4373 {
4374     int	    i;
4375 
4376     for (i = 0; i < tc_len; ++i)
4377 	if (termcodes[i].name[0] == name[0] && termcodes[i].name[1] == name[1])
4378 	    return termcodes[i].code;
4379     return NULL;
4380 }
4381 
4382     char_u *
get_termcode(int i)4383 get_termcode(int i)
4384 {
4385     if (i >= tc_len)
4386 	return NULL;
4387     return &termcodes[i].name[0];
4388 }
4389 
4390 /*
4391  * Returns the length of the terminal code at index 'idx'.
4392  */
4393     int
get_termcode_len(int idx)4394 get_termcode_len(int idx)
4395 {
4396     return termcodes[idx].len;
4397 }
4398 
4399     void
del_termcode(char_u * name)4400 del_termcode(char_u *name)
4401 {
4402     int	    i;
4403 
4404     if (termcodes == NULL)	// nothing there yet
4405 	return;
4406 
4407     need_gather = TRUE;		// need to fill termleader[]
4408 
4409     for (i = 0; i < tc_len; ++i)
4410 	if (termcodes[i].name[0] == name[0] && termcodes[i].name[1] == name[1])
4411 	{
4412 	    del_termcode_idx(i);
4413 	    return;
4414 	}
4415     // not found. Give error message?
4416 }
4417 
4418     static void
del_termcode_idx(int idx)4419 del_termcode_idx(int idx)
4420 {
4421     int		i;
4422 
4423     vim_free(termcodes[idx].code);
4424     --tc_len;
4425     for (i = idx; i < tc_len; ++i)
4426 	termcodes[i] = termcodes[i + 1];
4427 }
4428 
4429 #ifdef FEAT_TERMRESPONSE
4430 /*
4431  * Called when detected that the terminal sends 8-bit codes.
4432  * Convert all 7-bit codes to their 8-bit equivalent.
4433  */
4434     static void
switch_to_8bit(void)4435 switch_to_8bit(void)
4436 {
4437     int		i;
4438     int		c;
4439 
4440     // Only need to do something when not already using 8-bit codes.
4441     if (!term_is_8bit(T_NAME))
4442     {
4443 	for (i = 0; i < tc_len; ++i)
4444 	{
4445 	    c = term_7to8bit(termcodes[i].code);
4446 	    if (c != 0)
4447 	    {
4448 		STRMOVE(termcodes[i].code + 1, termcodes[i].code + 2);
4449 		termcodes[i].code[0] = c;
4450 	    }
4451 	}
4452 	need_gather = TRUE;		// need to fill termleader[]
4453     }
4454     detected_8bit = TRUE;
4455     LOG_TR(("Switching to 8 bit"));
4456 }
4457 #endif
4458 
4459 #ifdef CHECK_DOUBLE_CLICK
4460 static linenr_T orig_topline = 0;
4461 # ifdef FEAT_DIFF
4462 static int orig_topfill = 0;
4463 # endif
4464 #endif
4465 #if defined(CHECK_DOUBLE_CLICK) || defined(PROTO)
4466 /*
4467  * Checking for double clicks ourselves.
4468  * "orig_topline" is used to avoid detecting a double-click when the window
4469  * contents scrolled (e.g., when 'scrolloff' is non-zero).
4470  */
4471 /*
4472  * Set orig_topline.  Used when jumping to another window, so that a double
4473  * click still works.
4474  */
4475     void
set_mouse_topline(win_T * wp)4476 set_mouse_topline(win_T *wp)
4477 {
4478     orig_topline = wp->w_topline;
4479 # ifdef FEAT_DIFF
4480     orig_topfill = wp->w_topfill;
4481 # endif
4482 }
4483 
4484 /*
4485  * Returns TRUE if the top line and top fill of window 'wp' matches the saved
4486  * topline and topfill.
4487  */
4488     int
is_mouse_topline(win_T * wp)4489 is_mouse_topline(win_T *wp)
4490 {
4491     return orig_topline == wp->w_topline
4492 #ifdef FEAT_DIFF
4493 	&& orig_topfill == wp->w_topfill
4494 #endif
4495 	;
4496 }
4497 #endif
4498 
4499 /*
4500  * Put "string[new_slen]" in typebuf, or in "buf[bufsize]" if "buf" is not NULL.
4501  * Remove "slen" bytes.
4502  * Returns FAIL for error.
4503  */
4504     int
put_string_in_typebuf(int offset,int slen,char_u * string,int new_slen,char_u * buf,int bufsize,int * buflen)4505 put_string_in_typebuf(
4506 	int	offset,
4507 	int	slen,
4508 	char_u	*string,
4509 	int	new_slen,
4510 	char_u	*buf,
4511 	int	bufsize,
4512 	int	*buflen)
4513 {
4514     int		extra = new_slen - slen;
4515 
4516     string[new_slen] = NUL;
4517     if (buf == NULL)
4518     {
4519 	if (extra < 0)
4520 	    // remove matched chars, taking care of noremap
4521 	    del_typebuf(-extra, offset);
4522 	else if (extra > 0)
4523 	    // insert the extra space we need
4524 	    ins_typebuf(string + slen, REMAP_YES, offset, FALSE, FALSE);
4525 
4526 	// Careful: del_typebuf() and ins_typebuf() may have reallocated
4527 	// typebuf.tb_buf[]!
4528 	mch_memmove(typebuf.tb_buf + typebuf.tb_off + offset, string,
4529 							     (size_t)new_slen);
4530     }
4531     else
4532     {
4533 	if (extra < 0)
4534 	    // remove matched characters
4535 	    mch_memmove(buf + offset, buf + offset - extra,
4536 					   (size_t)(*buflen + offset + extra));
4537 	else if (extra > 0)
4538 	{
4539 	    // Insert the extra space we need.  If there is insufficient
4540 	    // space return -1.
4541 	    if (*buflen + extra + new_slen >= bufsize)
4542 		return FAIL;
4543 	    mch_memmove(buf + offset + extra, buf + offset,
4544 						   (size_t)(*buflen - offset));
4545 	}
4546 	mch_memmove(buf + offset, string, (size_t)new_slen);
4547 	*buflen = *buflen + extra + new_slen;
4548     }
4549     return OK;
4550 }
4551 
4552 /*
4553  * Decode a modifier number as xterm provides it into MOD_MASK bits.
4554  */
4555     int
decode_modifiers(int n)4556 decode_modifiers(int n)
4557 {
4558     int	    code = n - 1;
4559     int	    modifiers = 0;
4560 
4561     if (code & 1)
4562 	modifiers |= MOD_MASK_SHIFT;
4563     if (code & 2)
4564 	modifiers |= MOD_MASK_ALT;
4565     if (code & 4)
4566 	modifiers |= MOD_MASK_CTRL;
4567     if (code & 8)
4568 	modifiers |= MOD_MASK_META;
4569     return modifiers;
4570 }
4571 
4572     static int
modifiers2keycode(int modifiers,int * key,char_u * string)4573 modifiers2keycode(int modifiers, int *key, char_u *string)
4574 {
4575     int new_slen = 0;
4576 
4577     if (modifiers != 0)
4578     {
4579 	// Some keys have the modifier included.  Need to handle that here to
4580 	// make mappings work.  This may result in a special key, such as
4581 	// K_S_TAB.
4582 	*key = simplify_key(*key, &modifiers);
4583 	if (modifiers != 0)
4584 	{
4585 	    string[new_slen++] = K_SPECIAL;
4586 	    string[new_slen++] = (int)KS_MODIFIER;
4587 	    string[new_slen++] = modifiers;
4588 	}
4589     }
4590     return new_slen;
4591 }
4592 
4593 #ifdef FEAT_TERMRESPONSE
4594 /*
4595  * Handle a cursor position report.
4596  */
4597     static void
handle_u7_response(int * arg,char_u * tp UNUSED,int csi_len UNUSED)4598 handle_u7_response(int *arg, char_u *tp UNUSED, int csi_len UNUSED)
4599 {
4600     if (arg[0] == 2 && arg[1] >= 2)
4601     {
4602 	char *aw = NULL;
4603 
4604 	LOG_TR(("Received U7 status: %s", tp));
4605 	u7_status.tr_progress = STATUS_GOT;
4606 	did_cursorhold = TRUE;
4607 	if (arg[1] == 2)
4608 	    aw = "single";
4609 	else if (arg[1] == 3)
4610 	    aw = "double";
4611 	if (aw != NULL && STRCMP(aw, p_ambw) != 0)
4612 	{
4613 	    // Setting the option causes a screen redraw. Do
4614 	    // that right away if possible, keeping any
4615 	    // messages.
4616 	    set_option_value((char_u *)"ambw", 0L, (char_u *)aw, 0);
4617 # ifdef DEBUG_TERMRESPONSE
4618 	    {
4619 		int r = redraw_asap(CLEAR);
4620 
4621 		log_tr("set 'ambiwidth', redraw_asap(): %d", r);
4622 	    }
4623 # else
4624 	    redraw_asap(CLEAR);
4625 # endif
4626 # ifdef FEAT_EVAL
4627 	    set_vim_var_string(VV_TERMU7RESP, tp, csi_len);
4628 # endif
4629 	}
4630     }
4631     else if (arg[0] == 3)
4632     {
4633 	int value;
4634 
4635 	LOG_TR(("Received compatibility test result: %s", tp));
4636 	xcc_status.tr_progress = STATUS_GOT;
4637 
4638 	// Third row: xterm compatibility test.
4639 	// If the cursor is on the first column then the terminal can handle
4640 	// the request for cursor style and blinking.
4641 	value = arg[1] == 1 ? TPR_YES : TPR_NO;
4642 	term_props[TPR_CURSOR_STYLE].tpr_status = value;
4643 	term_props[TPR_CURSOR_BLINK].tpr_status = value;
4644     }
4645 }
4646 
4647 /*
4648  * Handle a response to T_CRV: {lead}{first}{x};{vers};{y}c
4649  * Xterm and alike use '>' for {first}.
4650  * Rxvt sends "{lead}?1;2c".
4651  */
4652     static void
handle_version_response(int first,int * arg,int argc,char_u * tp)4653 handle_version_response(int first, int *arg, int argc, char_u *tp)
4654 {
4655     // The xterm version.  It is set to zero when it can't be an actual xterm
4656     // version.
4657     int version = arg[1];
4658 
4659     LOG_TR(("Received CRV response: %s", tp));
4660     crv_status.tr_progress = STATUS_GOT;
4661     did_cursorhold = TRUE;
4662 
4663     // Reset terminal properties that are set based on the termresponse.
4664     // Mainly useful for tests that send the termresponse multiple times.
4665     // For testing all props can be reset.
4666     init_term_props(
4667 #ifdef FEAT_EVAL
4668 	    reset_term_props_on_termresponse
4669 #else
4670 	    FALSE
4671 #endif
4672 	    );
4673 
4674     // If this code starts with CSI, you can bet that the
4675     // terminal uses 8-bit codes.
4676     if (tp[0] == CSI)
4677 	switch_to_8bit();
4678 
4679     // Screen sends 40500.
4680     // rxvt sends its version number: "20703" is 2.7.3.
4681     // Ignore it for when the user has set 'term' to xterm,
4682     // even though it's an rxvt.
4683     if (version > 20000)
4684 	version = 0;
4685 
4686     // Figure out more if the reeponse is CSI > 99 ; 99 ; 99 c
4687     if (first == '>' && argc == 3)
4688     {
4689 	int need_flush = FALSE;
4690 
4691 	// mintty 2.9.5 sends 77;20905;0c.
4692 	// (77 is ASCII 'M' for mintty.)
4693 	if (arg[0] == 77)
4694 	{
4695 	    // mintty can do SGR mouse reporting
4696 	    term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4697 	}
4698 
4699 	// If xterm version >= 141 try to get termcap codes.  For other
4700 	// terminals the request should be ignored.
4701 	if (version >= 141)
4702 	{
4703 	    LOG_TR(("Enable checking for XT codes"));
4704 	    check_for_codes = TRUE;
4705 	    need_gather = TRUE;
4706 	    req_codes_from_term();
4707 	}
4708 
4709 	// libvterm sends 0;100;0
4710 	if (version == 100 && arg[0] == 0 && arg[2] == 0)
4711 	{
4712 	    // If run from Vim $COLORS is set to the number of
4713 	    // colors the terminal supports.  Otherwise assume
4714 	    // 256, libvterm supports even more.
4715 	    if (mch_getenv((char_u *)"COLORS") == NULL)
4716 		may_adjust_color_count(256);
4717 	    // Libvterm can handle SGR mouse reporting.
4718 	    term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4719 	}
4720 
4721 	if (version == 95)
4722 	{
4723 	    // Mac Terminal.app sends 1;95;0
4724 	    if (arg[0] == 1 && arg[2] == 0)
4725 	    {
4726 		term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4727 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4728 	    }
4729 	    // iTerm2 sends 0;95;0
4730 	    else if (arg[0] == 0 && arg[2] == 0)
4731 	    {
4732 		// iTerm2 can do SGR mouse reporting
4733 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4734 	    }
4735 	    // old iTerm2 sends 0;95;
4736 	    else if (arg[0] == 0 && arg[2] == -1)
4737 		term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4738 	}
4739 
4740 	// screen sends 83;40500;0 83 is 'S' in ASCII.
4741 	if (arg[0] == 83)
4742 	{
4743 	    // screen supports SGR mouse codes since 4.7.0
4744 	    if (arg[1] >= 40700)
4745 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4746 	    else
4747 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_XTERM;
4748 	}
4749 
4750 	// If no recognized terminal has set mouse behavior, assume xterm.
4751 	if (term_props[TPR_MOUSE].tpr_status == TPR_UNKNOWN)
4752 	{
4753 	    // Xterm version 277 supports SGR.
4754 	    // Xterm version >= 95 supports mouse dragging.
4755 	    if (version >= 277)
4756 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4757 	    else if (version >= 95)
4758 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_XTERM2;
4759 	}
4760 
4761 	// Detect terminals that set $TERM to something like
4762 	// "xterm-256color" but are not fully xterm compatible.
4763 	//
4764 	// Gnome terminal sends 1;3801;0, 1;4402;0 or 1;2501;0.
4765 	// Newer Gnome-terminal sends 65;6001;1.
4766 	// xfce4-terminal sends 1;2802;0.
4767 	// screen sends 83;40500;0
4768 	// Assuming any version number over 2500 is not an
4769 	// xterm (without the limit for rxvt and screen).
4770 	if (arg[1] >= 2500)
4771 	    term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4772 
4773 	else if (version == 136 && arg[2] == 0)
4774 	{
4775 	    term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4776 
4777 	    // PuTTY sends 0;136;0
4778 	    if (arg[0] == 0)
4779 	    {
4780 		// supports sgr-like mouse reporting.
4781 		term_props[TPR_MOUSE].tpr_status = TPR_MOUSE_SGR;
4782 	    }
4783 	    // vandyke SecureCRT sends 1;136;0
4784 	}
4785 
4786 	// Konsole sends 0;115;0
4787 	else if (version == 115 && arg[0] == 0 && arg[2] == 0)
4788 	    term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4789 
4790 	// GNU screen sends 83;30600;0, 83;40500;0, etc.
4791 	// 30600/40500 is a version number of GNU screen. DA2 support is added
4792 	// on 3.6.  DCS string has a special meaning to GNU screen, but xterm
4793 	// compatibility checking does not detect GNU screen.
4794 	if (arg[0] == 83 && arg[1] >= 30600)
4795 	{
4796 	    term_props[TPR_CURSOR_STYLE].tpr_status = TPR_NO;
4797 	    term_props[TPR_CURSOR_BLINK].tpr_status = TPR_NO;
4798 	}
4799 
4800 	// Xterm first responded to this request at patch level
4801 	// 95, so assume anything below 95 is not xterm and hopefully supports
4802 	// the underline RGB color sequence.
4803 	if (version < 95)
4804 	    term_props[TPR_UNDERLINE_RGB].tpr_status = TPR_YES;
4805 
4806 	// Getting the cursor style is only supported properly by xterm since
4807 	// version 279 (otherwise it returns 0x18).
4808 	if (version < 279)
4809 	    term_props[TPR_CURSOR_STYLE].tpr_status = TPR_NO;
4810 
4811 	/*
4812 	 * Take action on the detected properties.
4813 	 */
4814 
4815 	// Unless the underline RGB color is expected to work, disable "t_8u".
4816 	// It does not work for the real Xterm, it resets the background color.
4817 	if (term_props[TPR_UNDERLINE_RGB].tpr_status != TPR_YES && *T_8U != NUL)
4818 	    set_string_option_direct((char_u *)"t_8u", -1, (char_u *)"",
4819 								  OPT_FREE, 0);
4820 
4821 	// Only set 'ttymouse' automatically if it was not set
4822 	// by the user already.
4823 	if (!option_was_set((char_u *)"ttym")
4824 		&& (term_props[TPR_MOUSE].tpr_status == TPR_MOUSE_XTERM2
4825 		    || term_props[TPR_MOUSE].tpr_status == TPR_MOUSE_SGR))
4826 	{
4827 	    set_option_value((char_u *)"ttym", 0L,
4828 		    term_props[TPR_MOUSE].tpr_status == TPR_MOUSE_SGR
4829 				    ? (char_u *)"sgr" : (char_u *)"xterm2", 0);
4830 	}
4831 
4832 	// Only request the cursor style if t_SH and t_RS are
4833 	// set. Only supported properly by xterm since version
4834 	// 279 (otherwise it returns 0x18).
4835 	// Only when getting the cursor style was detected to work.
4836 	// Not for Terminal.app, it can't handle t_RS, it
4837 	// echoes the characters to the screen.
4838 	if (rcs_status.tr_progress == STATUS_GET
4839 		&& term_props[TPR_CURSOR_STYLE].tpr_status == TPR_YES
4840 		&& *T_CSH != NUL
4841 		&& *T_CRS != NUL)
4842 	{
4843 #ifdef FEAT_JOB_CHANNEL
4844 	    ch_log_output = TRUE;
4845 #endif
4846 	    LOG_TR(("Sending cursor style request"));
4847 	    out_str(T_CRS);
4848 	    termrequest_sent(&rcs_status);
4849 	    need_flush = TRUE;
4850 	}
4851 
4852 	// Only request the cursor blink mode if t_RC set. Not
4853 	// for Gnome terminal, it can't handle t_RC, it
4854 	// echoes the characters to the screen.
4855 	// Only when getting the cursor style was detected to work.
4856 	if (rbm_status.tr_progress == STATUS_GET
4857 		&& term_props[TPR_CURSOR_BLINK].tpr_status == TPR_YES
4858 		&& *T_CRC != NUL)
4859 	{
4860 #ifdef FEAT_JOB_CHANNEL
4861 	    ch_log_output = TRUE;
4862 #endif
4863 	    LOG_TR(("Sending cursor blink mode request"));
4864 	    out_str(T_CRC);
4865 	    termrequest_sent(&rbm_status);
4866 	    need_flush = TRUE;
4867 	}
4868 
4869 	if (need_flush)
4870 	    out_flush();
4871     }
4872 }
4873 
4874 /*
4875  * Handle a sequence with key and modifier, one of:
4876  *	{lead}27;{modifier};{key}~
4877  *	{lead}{key};{modifier}u
4878  * Returns the difference in length.
4879  */
4880     static int
handle_key_with_modifier(int * arg,int trail,int csi_len,int offset,char_u * buf,int bufsize,int * buflen)4881 handle_key_with_modifier(
4882 	int	*arg,
4883 	int	trail,
4884 	int	csi_len,
4885 	int	offset,
4886 	char_u	*buf,
4887 	int	bufsize,
4888 	int	*buflen)
4889 {
4890     int	    key;
4891     int	    modifiers;
4892     int	    new_slen;
4893     char_u  string[MAX_KEY_CODE_LEN + 1];
4894 
4895     seenModifyOtherKeys = TRUE;
4896     if (trail == 'u')
4897 	key = arg[0];
4898     else
4899 	key = arg[2];
4900 
4901     modifiers = decode_modifiers(arg[1]);
4902 
4903     // Some keys need adjustment when the Ctrl modifier is used.
4904     key = may_adjust_key_for_ctrl(modifiers, key);
4905 
4906     // May remove the shift modifier if it's already included in the key.
4907     modifiers = may_remove_shift_modifier(modifiers, key);
4908 
4909     // insert modifiers with KS_MODIFIER
4910     new_slen = modifiers2keycode(modifiers, &key, string);
4911 
4912     if (IS_SPECIAL(key))
4913     {
4914 	string[new_slen++] = K_SPECIAL;
4915 	string[new_slen++] = KEY2TERMCAP0(key);
4916 	string[new_slen++] = KEY2TERMCAP1(key);
4917     }
4918     else if (has_mbyte)
4919 	new_slen += (*mb_char2bytes)(key, string + new_slen);
4920     else
4921 	string[new_slen++] = key;
4922 
4923     if (put_string_in_typebuf(offset, csi_len, string, new_slen,
4924 						 buf, bufsize, buflen) == FAIL)
4925 	return -1;
4926     return new_slen - csi_len + offset;
4927 }
4928 
4929 /*
4930  * Handle a CSI escape sequence.
4931  * - Xterm version string.
4932  *
4933  * - Cursor position report: {lead}{row};{col}R
4934  *   The final byte must be 'R'. It is used for checking the
4935  *   ambiguous-width character state.
4936  *
4937  * - window position reply: {lead}3;{x};{y}t
4938  *
4939  * - key with modifiers when modifyOtherKeys is enabled:
4940  *	    {lead}27;{modifier};{key}~
4941  *	    {lead}{key};{modifier}u
4942  * Return 0 for no match, -1 for partial match, > 0 for full match.
4943  */
4944     static int
handle_csi(char_u * tp,int len,char_u * argp,int offset,char_u * buf,int bufsize,int * buflen,char_u * key_name,int * slen)4945 handle_csi(
4946 	char_u	*tp,
4947 	int	len,
4948 	char_u	*argp,
4949 	int	offset,
4950 	char_u  *buf,
4951 	int	bufsize,
4952 	int	*buflen,
4953 	char_u	*key_name,
4954 	int	*slen)
4955 {
4956     int		first = -1;  // optional char right after {lead}
4957     int		trail;	     // char that ends CSI sequence
4958     int		arg[3] = {-1, -1, -1};	// argument numbers
4959     int		argc;			// number of arguments
4960     char_u	*ap = argp;
4961     int		csi_len;
4962 
4963     // Check for non-digit after CSI.
4964     if (!VIM_ISDIGIT(*ap))
4965 	first = *ap++;
4966 
4967     // Find up to three argument numbers.
4968     for (argc = 0; argc < 3; )
4969     {
4970 	if (ap >= tp + len)
4971 	    return -1;
4972 	if (*ap == ';')
4973 	    arg[argc++] = -1;  // omitted number
4974 	else if (VIM_ISDIGIT(*ap))
4975 	{
4976 	    arg[argc] = 0;
4977 	    for (;;)
4978 	    {
4979 		if (ap >= tp + len)
4980 		    return -1;
4981 		if (!VIM_ISDIGIT(*ap))
4982 		    break;
4983 		arg[argc] = arg[argc] * 10 + (*ap - '0');
4984 		++ap;
4985 	    }
4986 	    ++argc;
4987 	}
4988 	if (*ap == ';')
4989 	    ++ap;
4990 	else
4991 	    break;
4992     }
4993 
4994     // mrxvt has been reported to have "+" in the version. Assume
4995     // the escape sequence ends with a letter or one of "{|}~".
4996     while (ap < tp + len
4997 	    && !(*ap >= '{' && *ap <= '~')
4998 	    && !ASCII_ISALPHA(*ap))
4999 	++ap;
5000     if (ap >= tp + len)
5001 	return -1;
5002     trail = *ap;
5003     csi_len = (int)(ap - tp) + 1;
5004 
5005     // Cursor position report: Eat it when there are 2 arguments
5006     // and it ends in 'R'. Also when u7_status is not "sent", it
5007     // may be from a previous Vim that just exited.  But not for
5008     // <S-F3>, it sends something similar, check for row and column
5009     // to make sense.
5010     if (first == -1 && argc == 2 && trail == 'R')
5011     {
5012 	handle_u7_response(arg, tp, csi_len);
5013 
5014 	key_name[0] = (int)KS_EXTRA;
5015 	key_name[1] = (int)KE_IGNORE;
5016 	*slen = csi_len;
5017     }
5018 
5019     // Version string: Eat it when there is at least one digit and
5020     // it ends in 'c'
5021     else if (*T_CRV != NUL && ap > argp + 1 && trail == 'c')
5022     {
5023 	handle_version_response(first, arg, argc, tp);
5024 
5025 	*slen = csi_len;
5026 # ifdef FEAT_EVAL
5027 	set_vim_var_string(VV_TERMRESPONSE, tp, *slen);
5028 # endif
5029 	apply_autocmds(EVENT_TERMRESPONSE,
5030 					NULL, NULL, FALSE, curbuf);
5031 	key_name[0] = (int)KS_EXTRA;
5032 	key_name[1] = (int)KE_IGNORE;
5033     }
5034 
5035     // Check blinking cursor from xterm:
5036     // {lead}?12;1$y       set
5037     // {lead}?12;2$y       not set
5038     //
5039     // {lead} can be <Esc>[ or CSI
5040     else if (rbm_status.tr_progress == STATUS_SENT
5041 	    && first == '?'
5042 	    && ap == argp + 6
5043 	    && arg[0] == 12
5044 	    && ap[-1] == '$'
5045 	    && trail == 'y')
5046     {
5047 	initial_cursor_blink = (arg[1] == '1');
5048 	rbm_status.tr_progress = STATUS_GOT;
5049 	LOG_TR(("Received cursor blinking mode response: %s", tp));
5050 	key_name[0] = (int)KS_EXTRA;
5051 	key_name[1] = (int)KE_IGNORE;
5052 	*slen = csi_len;
5053 # ifdef FEAT_EVAL
5054 	set_vim_var_string(VV_TERMBLINKRESP, tp, *slen);
5055 # endif
5056     }
5057 
5058     // Check for a window position response from the terminal:
5059     //       {lead}3;{x};{y}t
5060     else if (did_request_winpos && argc == 3 && arg[0] == 3
5061 						   && trail == 't')
5062     {
5063 	winpos_x = arg[1];
5064 	winpos_y = arg[2];
5065 	// got finished code: consume it
5066 	key_name[0] = (int)KS_EXTRA;
5067 	key_name[1] = (int)KE_IGNORE;
5068 	*slen = csi_len;
5069 
5070 	if (--did_request_winpos <= 0)
5071 	    winpos_status.tr_progress = STATUS_GOT;
5072     }
5073 
5074     // Key with modifier:
5075     //	{lead}27;{modifier};{key}~
5076     //	{lead}{key};{modifier}u
5077     else if ((arg[0] == 27 && argc == 3 && trail == '~')
5078 	    || (argc == 2 && trail == 'u'))
5079     {
5080 	return len + handle_key_with_modifier(arg, trail,
5081 			    csi_len, offset, buf, bufsize, buflen);
5082     }
5083 
5084     // else: Unknown CSI sequence.  We could drop it, but then the
5085     // user can't create a map for it.
5086     return 0;
5087 }
5088 
5089 /*
5090  * Handle an OSC sequence, fore/background color response from the terminal:
5091  *
5092  *       {lead}{code};rgb:{rrrr}/{gggg}/{bbbb}{tail}
5093  * or    {lead}{code};rgb:{rr}/{gg}/{bb}{tail}
5094  *
5095  * {code} is 10 for foreground, 11 for background
5096  * {lead} can be <Esc>] or OSC
5097  * {tail} can be '\007', <Esc>\ or STERM.
5098  *
5099  * Consume any code that starts with "{lead}11;", it's also
5100  * possible that "rgba" is following.
5101  */
5102     static int
handle_osc(char_u * tp,char_u * argp,int len,char_u * key_name,int * slen)5103 handle_osc(char_u *tp, char_u *argp, int len, char_u *key_name, int *slen)
5104 {
5105     int		i, j;
5106 
5107     j = 1 + (tp[0] == ESC);
5108     if (len >= j + 3 && (argp[0] != '1'
5109 			     || (argp[1] != '1' && argp[1] != '0')
5110 			     || argp[2] != ';'))
5111 	i = 0; // no match
5112     else
5113 	for (i = j; i < len; ++i)
5114 	    if (tp[i] == '\007' || (tp[0] == OSC ? tp[i] == STERM
5115 			: (tp[i] == ESC && i + 1 < len && tp[i + 1] == '\\')))
5116 	    {
5117 		int is_bg = argp[1] == '1';
5118 		int is_4digit = i - j >= 21 && tp[j + 11] == '/'
5119 						  && tp[j + 16] == '/';
5120 
5121 		if (i - j >= 15 && STRNCMP(tp + j + 3, "rgb:", 4) == 0
5122 			    && (is_4digit
5123 				   || (tp[j + 9] == '/' && tp[i + 12 == '/'])))
5124 		{
5125 		    char_u *tp_r = tp + j + 7;
5126 		    char_u *tp_g = tp + j + (is_4digit ? 12 : 10);
5127 		    char_u *tp_b = tp + j + (is_4digit ? 17 : 13);
5128 # ifdef FEAT_TERMINAL
5129 		    int rval, gval, bval;
5130 
5131 		    rval = hexhex2nr(tp_r);
5132 		    gval = hexhex2nr(tp_b);
5133 		    bval = hexhex2nr(tp_g);
5134 # endif
5135 		    if (is_bg)
5136 		    {
5137 			char *new_bg_val = (3 * '6' < *tp_r + *tp_g +
5138 					     *tp_b) ? "light" : "dark";
5139 
5140 			LOG_TR(("Received RBG response: %s", tp));
5141 			rbg_status.tr_progress = STATUS_GOT;
5142 # ifdef FEAT_TERMINAL
5143 			bg_r = rval;
5144 			bg_g = gval;
5145 			bg_b = bval;
5146 # endif
5147 			if (!option_was_set((char_u *)"bg")
5148 				      && STRCMP(p_bg, new_bg_val) != 0)
5149 			{
5150 			    // value differs, apply it
5151 			    set_option_value((char_u *)"bg", 0L,
5152 					      (char_u *)new_bg_val, 0);
5153 			    reset_option_was_set((char_u *)"bg");
5154 			    redraw_asap(CLEAR);
5155 			}
5156 		    }
5157 # ifdef FEAT_TERMINAL
5158 		    else
5159 		    {
5160 			LOG_TR(("Received RFG response: %s", tp));
5161 			rfg_status.tr_progress = STATUS_GOT;
5162 			fg_r = rval;
5163 			fg_g = gval;
5164 			fg_b = bval;
5165 		    }
5166 # endif
5167 		}
5168 
5169 		// got finished code: consume it
5170 		key_name[0] = (int)KS_EXTRA;
5171 		key_name[1] = (int)KE_IGNORE;
5172 		*slen = i + 1 + (tp[i] == ESC);
5173 # ifdef FEAT_EVAL
5174 		set_vim_var_string(is_bg ? VV_TERMRBGRESP
5175 						  : VV_TERMRFGRESP, tp, *slen);
5176 # endif
5177 		break;
5178 	    }
5179     if (i == len)
5180     {
5181 	LOG_TR(("not enough characters for RB"));
5182 	return FAIL;
5183     }
5184     return OK;
5185 }
5186 
5187 /*
5188  * Check for key code response from xterm:
5189  * {lead}{flag}+r<hex bytes><{tail}
5190  *
5191  * {lead} can be <Esc>P or DCS
5192  * {flag} can be '0' or '1'
5193  * {tail} can be Esc>\ or STERM
5194  *
5195  * Check for cursor shape response from xterm:
5196  * {lead}1$r<digit> q{tail}
5197  *
5198  * {lead} can be <Esc>P or DCS
5199  * {tail} can be <Esc>\ or STERM
5200  *
5201  * Consume any code that starts with "{lead}.+r" or "{lead}.$r".
5202  */
5203     static int
handle_dcs(char_u * tp,char_u * argp,int len,char_u * key_name,int * slen)5204 handle_dcs(char_u *tp, char_u *argp, int len, char_u *key_name, int *slen)
5205 {
5206     int i, j;
5207 
5208     j = 1 + (tp[0] == ESC);
5209     if (len < j + 3)
5210 	i = len; // need more chars
5211     else if ((argp[1] != '+' && argp[1] != '$') || argp[2] != 'r')
5212 	i = 0; // no match
5213     else if (argp[1] == '+')
5214 	// key code response
5215 	for (i = j; i < len; ++i)
5216 	{
5217 	    if ((tp[i] == ESC && i + 1 < len && tp[i + 1] == '\\')
5218 		    || tp[i] == STERM)
5219 	    {
5220 		if (i - j >= 3)
5221 		    got_code_from_term(tp + j, i);
5222 		key_name[0] = (int)KS_EXTRA;
5223 		key_name[1] = (int)KE_IGNORE;
5224 		*slen = i + 1 + (tp[i] == ESC);
5225 		break;
5226 	    }
5227 	}
5228     else
5229     {
5230 	// Probably the cursor shape response.  Make sure that "i"
5231 	// is equal to "len" when there are not sufficient
5232 	// characters.
5233 	for (i = j + 3; i < len; ++i)
5234 	{
5235 	    if (i - j == 3 && !isdigit(tp[i]))
5236 		break;
5237 	    if (i - j == 4 && tp[i] != ' ')
5238 		break;
5239 	    if (i - j == 5 && tp[i] != 'q')
5240 		break;
5241 	    if (i - j == 6 && tp[i] != ESC && tp[i] != STERM)
5242 		break;
5243 	    if ((i - j == 6 && tp[i] == STERM)
5244 	     || (i - j == 7 && tp[i] == '\\'))
5245 	    {
5246 		int number = argp[3] - '0';
5247 
5248 		// 0, 1 = block blink, 2 = block
5249 		// 3 = underline blink, 4 = underline
5250 		// 5 = vertical bar blink, 6 = vertical bar
5251 		number = number == 0 ? 1 : number;
5252 		initial_cursor_shape = (number + 1) / 2;
5253 		// The blink flag is actually inverted, compared to
5254 		// the value set with T_SH.
5255 		initial_cursor_shape_blink =
5256 				       (number & 1) ? FALSE : TRUE;
5257 		rcs_status.tr_progress = STATUS_GOT;
5258 		LOG_TR(("Received cursor shape response: %s", tp));
5259 
5260 		key_name[0] = (int)KS_EXTRA;
5261 		key_name[1] = (int)KE_IGNORE;
5262 		*slen = i + 1;
5263 # ifdef FEAT_EVAL
5264 		set_vim_var_string(VV_TERMSTYLERESP, tp, *slen);
5265 # endif
5266 		break;
5267 	    }
5268 	}
5269     }
5270 
5271     if (i == len)
5272     {
5273 	// These codes arrive many together, each code can be
5274 	// truncated at any point.
5275 	LOG_TR(("not enough characters for XT"));
5276 	return FAIL;
5277     }
5278     return OK;
5279 }
5280 #endif // FEAT_TERMRESPONSE
5281 
5282 /*
5283  * Check if typebuf.tb_buf[] contains a terminal key code.
5284  * Check from typebuf.tb_buf[typebuf.tb_off] to typebuf.tb_buf[typebuf.tb_off
5285  * + "max_offset"].
5286  * Return 0 for no match, -1 for partial match, > 0 for full match.
5287  * Return KEYLEN_REMOVED when a key code was deleted.
5288  * With a match, the match is removed, the replacement code is inserted in
5289  * typebuf.tb_buf[] and the number of characters in typebuf.tb_buf[] is
5290  * returned.
5291  * When "buf" is not NULL, buf[bufsize] is used instead of typebuf.tb_buf[].
5292  * "buflen" is then the length of the string in buf[] and is updated for
5293  * inserts and deletes.
5294  */
5295     int
check_termcode(int max_offset,char_u * buf,int bufsize,int * buflen)5296 check_termcode(
5297     int		max_offset,
5298     char_u	*buf,
5299     int		bufsize,
5300     int		*buflen)
5301 {
5302     char_u	*tp;
5303     char_u	*p;
5304     int		slen = 0;	// init for GCC
5305     int		modslen;
5306     int		len;
5307     int		retval = 0;
5308     int		offset;
5309     char_u	key_name[2];
5310     int		modifiers;
5311     char_u	*modifiers_start = NULL;
5312     int		key;
5313     int		new_slen;   // Length of what will replace the termcode
5314     char_u	string[MAX_KEY_CODE_LEN + 1];
5315     int		i, j;
5316     int		idx = 0;
5317     int		cpo_koffset;
5318 
5319     cpo_koffset = (vim_strchr(p_cpo, CPO_KOFFSET) != NULL);
5320 
5321     /*
5322      * Speed up the checks for terminal codes by gathering all first bytes
5323      * used in termleader[].  Often this is just a single <Esc>.
5324      */
5325     if (need_gather)
5326 	gather_termleader();
5327 
5328     /*
5329      * Check at several positions in typebuf.tb_buf[], to catch something like
5330      * "x<Up>" that can be mapped. Stop at max_offset, because characters
5331      * after that cannot be used for mapping, and with @r commands
5332      * typebuf.tb_buf[] can become very long.
5333      * This is used often, KEEP IT FAST!
5334      */
5335     for (offset = 0; offset < max_offset; ++offset)
5336     {
5337 	if (buf == NULL)
5338 	{
5339 	    if (offset >= typebuf.tb_len)
5340 		break;
5341 	    tp = typebuf.tb_buf + typebuf.tb_off + offset;
5342 	    len = typebuf.tb_len - offset;	// length of the input
5343 	}
5344 	else
5345 	{
5346 	    if (offset >= *buflen)
5347 		break;
5348 	    tp = buf + offset;
5349 	    len = *buflen - offset;
5350 	}
5351 
5352 	/*
5353 	 * Don't check characters after K_SPECIAL, those are already
5354 	 * translated terminal chars (avoid translating ~@^Hx).
5355 	 */
5356 	if (*tp == K_SPECIAL)
5357 	{
5358 	    offset += 2;	// there are always 2 extra characters
5359 	    continue;
5360 	}
5361 
5362 	/*
5363 	 * Skip this position if the character does not appear as the first
5364 	 * character in term_strings. This speeds up a lot, since most
5365 	 * termcodes start with the same character (ESC or CSI).
5366 	 */
5367 	i = *tp;
5368 	for (p = termleader; *p && *p != i; ++p)
5369 	    ;
5370 	if (*p == NUL)
5371 	    continue;
5372 
5373 	/*
5374 	 * Skip this position if p_ek is not set and tp[0] is an ESC and we
5375 	 * are in Insert mode.
5376 	 */
5377 	if (*tp == ESC && !p_ek && (State & INSERT))
5378 	    continue;
5379 
5380 	key_name[0] = NUL;	// no key name found yet
5381 	key_name[1] = NUL;	// no key name found yet
5382 	modifiers = 0;		// no modifiers yet
5383 
5384 #ifdef FEAT_GUI
5385 	if (gui.in_use)
5386 	{
5387 	    /*
5388 	     * GUI special key codes are all of the form [CSI xx].
5389 	     */
5390 	    if (*tp == CSI)	    // Special key from GUI
5391 	    {
5392 		if (len < 3)
5393 		    return -1;	    // Shouldn't happen
5394 		slen = 3;
5395 		key_name[0] = tp[1];
5396 		key_name[1] = tp[2];
5397 	    }
5398 	}
5399 	else
5400 #endif // FEAT_GUI
5401 	{
5402 	    int  mouse_index_found = -1;
5403 
5404 	    for (idx = 0; idx < tc_len; ++idx)
5405 	    {
5406 		/*
5407 		 * Ignore the entry if we are not at the start of
5408 		 * typebuf.tb_buf[]
5409 		 * and there are not enough characters to make a match.
5410 		 * But only when the 'K' flag is in 'cpoptions'.
5411 		 */
5412 		slen = termcodes[idx].len;
5413 		modifiers_start = NULL;
5414 		if (cpo_koffset && offset && len < slen)
5415 		    continue;
5416 		if (STRNCMP(termcodes[idx].code, tp,
5417 				     (size_t)(slen > len ? len : slen)) == 0)
5418 		{
5419 		    if (len < slen)		// got a partial sequence
5420 			return -1;		// need to get more chars
5421 
5422 		    /*
5423 		     * When found a keypad key, check if there is another key
5424 		     * that matches and use that one.  This makes <Home> to be
5425 		     * found instead of <kHome> when they produce the same
5426 		     * key code.
5427 		     */
5428 		    if (termcodes[idx].name[0] == 'K'
5429 				       && VIM_ISDIGIT(termcodes[idx].name[1]))
5430 		    {
5431 			for (j = idx + 1; j < tc_len; ++j)
5432 			    if (termcodes[j].len == slen &&
5433 				    STRNCMP(termcodes[idx].code,
5434 					    termcodes[j].code, slen) == 0)
5435 			    {
5436 				idx = j;
5437 				break;
5438 			    }
5439 		    }
5440 
5441 		    // The mouse termcode "ESC [" is also the prefix of
5442 		    // "ESC [ I" (focus gained).  Only use it when there is
5443 		    // no other match.  Do use it when a digit is following to
5444 		    // avoid waiting for more bytes.
5445 		    if (slen == 2 && len > 2
5446 			    && termcodes[idx].code[0] == ESC
5447 			    && termcodes[idx].code[1] == '['
5448 			    && !isdigit(tp[2]))
5449 		    {
5450 			if (mouse_index_found < 0)
5451 			    mouse_index_found = idx;
5452 		    }
5453 		    else
5454 		    {
5455 			key_name[0] = termcodes[idx].name[0];
5456 			key_name[1] = termcodes[idx].name[1];
5457 			break;
5458 		    }
5459 		}
5460 
5461 		/*
5462 		 * Check for code with modifier, like xterm uses:
5463 		 * <Esc>[123;*X  (modslen == slen - 3)
5464 		 * <Esc>[@;*X    (matches <Esc>[X and <Esc>[1;9X )
5465 		 * Also <Esc>O*X and <M-O>*X (modslen == slen - 2).
5466 		 * When there is a modifier the * matches a number.
5467 		 * When there is no modifier the ;* or * is omitted.
5468 		 */
5469 		if (termcodes[idx].modlen > 0 && mouse_index_found < 0)
5470 		{
5471 		    int at_code;
5472 
5473 		    modslen = termcodes[idx].modlen;
5474 		    if (cpo_koffset && offset && len < modslen)
5475 			continue;
5476 		    at_code = termcodes[idx].code[modslen] == '@';
5477 		    if (STRNCMP(termcodes[idx].code, tp,
5478 				(size_t)(modslen > len ? len : modslen)) == 0)
5479 		    {
5480 			int	    n;
5481 
5482 			if (len <= modslen)	// got a partial sequence
5483 			    return -1;		// need to get more chars
5484 
5485 			if (tp[modslen] == termcodes[idx].code[slen - 1])
5486 			    // no modifiers
5487 			    slen = modslen + 1;
5488 			else if (tp[modslen] != ';' && modslen == slen - 3)
5489 			    // no match for "code;*X" with "code;"
5490 			    continue;
5491 			else if (at_code && tp[modslen] != '1')
5492 			    // no match for "<Esc>[@" with "<Esc>[1"
5493 			    continue;
5494 			else
5495 			{
5496 			    // Skip over the digits, the final char must
5497 			    // follow. URXVT can use a negative value, thus
5498 			    // also accept '-'.
5499 			    for (j = slen - 2; j < len && (isdigit(tp[j])
5500 				       || tp[j] == '-' || tp[j] == ';'); ++j)
5501 				;
5502 			    ++j;
5503 			    if (len < j)	// got a partial sequence
5504 				return -1;	// need to get more chars
5505 			    if (tp[j - 1] != termcodes[idx].code[slen - 1])
5506 				continue;	// no match
5507 
5508 			    modifiers_start = tp + slen - 2;
5509 
5510 			    // Match!  Convert modifier bits.
5511 			    n = atoi((char *)modifiers_start);
5512 			    modifiers |= decode_modifiers(n);
5513 
5514 			    slen = j;
5515 			}
5516 			key_name[0] = termcodes[idx].name[0];
5517 			key_name[1] = termcodes[idx].name[1];
5518 			break;
5519 		    }
5520 		}
5521 	    }
5522 	    if (idx == tc_len && mouse_index_found >= 0)
5523 	    {
5524 		key_name[0] = termcodes[mouse_index_found].name[0];
5525 		key_name[1] = termcodes[mouse_index_found].name[1];
5526 	    }
5527 	}
5528 
5529 #ifdef FEAT_TERMRESPONSE
5530 	if (key_name[0] == NUL
5531 	    // Mouse codes of DEC and pterm start with <ESC>[.  When
5532 	    // detecting the start of these mouse codes they might as well be
5533 	    // another key code or terminal response.
5534 # ifdef FEAT_MOUSE_DEC
5535 	    || key_name[0] == KS_DEC_MOUSE
5536 # endif
5537 # ifdef FEAT_MOUSE_PTERM
5538 	    || key_name[0] == KS_PTERM_MOUSE
5539 # endif
5540 	   )
5541 	{
5542 	    char_u *argp = tp[0] == ESC ? tp + 2 : tp + 1;
5543 
5544 	    /*
5545 	     * Check for responses from the terminal starting with {lead}:
5546 	     * "<Esc>[" or CSI followed by [0-9>?]
5547 	     *
5548 	     * - Xterm version string: {lead}>{x};{vers};{y}c
5549 	     *   Also eat other possible responses to t_RV, rxvt returns
5550 	     *   "{lead}?1;2c".
5551 	     *
5552 	     * - Cursor position report: {lead}{row};{col}R
5553 	     *   The final byte must be 'R'. It is used for checking the
5554 	     *   ambiguous-width character state.
5555 	     *
5556 	     * - window position reply: {lead}3;{x};{y}t
5557 	     *
5558 	     * - key with modifiers when modifyOtherKeys is enabled:
5559 	     *	    {lead}27;{modifier};{key}~
5560 	     *	    {lead}{key};{modifier}u
5561 	     */
5562 	    if (((tp[0] == ESC && len >= 3 && tp[1] == '[')
5563 			    || (tp[0] == CSI && len >= 2))
5564 		    && (VIM_ISDIGIT(*argp) || *argp == '>' || *argp == '?'))
5565 	    {
5566 		int resp = handle_csi(tp, len, argp, offset, buf,
5567 					     bufsize, buflen, key_name, &slen);
5568 		if (resp != 0)
5569 		{
5570 # ifdef DEBUG_TERMRESPONSE
5571 		    if (resp == -1)
5572 			LOG_TR(("Not enough characters for CSI sequence"));
5573 # endif
5574 		    return resp;
5575 		}
5576 	    }
5577 
5578 	    // Check for fore/background color response from the terminal,
5579 	    // starting} with <Esc>] or OSC
5580 	    else if ((*T_RBG != NUL || *T_RFG != NUL)
5581 			&& ((tp[0] == ESC && len >= 2 && tp[1] == ']')
5582 			    || tp[0] == OSC))
5583 	    {
5584 		if (handle_osc(tp, argp, len, key_name, &slen) == FAIL)
5585 		    return -1;
5586 	    }
5587 
5588 	    // Check for key code response from xterm,
5589 	    // starting with <Esc>P or DCS
5590 	    else if ((check_for_codes || rcs_status.tr_progress == STATUS_SENT)
5591 		    && ((tp[0] == ESC && len >= 2 && tp[1] == 'P')
5592 			|| tp[0] == DCS))
5593 	    {
5594 		if (handle_dcs(tp, argp, len, key_name, &slen) == FAIL)
5595 		    return -1;
5596 	    }
5597 	}
5598 #endif
5599 
5600 	if (key_name[0] == NUL)
5601 	    continue;	    // No match at this position, try next one
5602 
5603 	// We only get here when we have a complete termcode match
5604 
5605 #ifdef FEAT_GUI
5606 	/*
5607 	 * Only in the GUI: Fetch the pointer coordinates of the scroll event
5608 	 * so that we know which window to scroll later.
5609 	 */
5610 	if (gui.in_use
5611 		&& key_name[0] == (int)KS_EXTRA
5612 		&& (key_name[1] == (int)KE_X1MOUSE
5613 		    || key_name[1] == (int)KE_X2MOUSE
5614 		    || key_name[1] == (int)KE_MOUSEMOVE_XY
5615 		    || key_name[1] == (int)KE_MOUSELEFT
5616 		    || key_name[1] == (int)KE_MOUSERIGHT
5617 		    || key_name[1] == (int)KE_MOUSEDOWN
5618 		    || key_name[1] == (int)KE_MOUSEUP))
5619 	{
5620 	    char_u	bytes[6];
5621 	    int		num_bytes = get_bytes_from_buf(tp + slen, bytes, 4);
5622 
5623 	    if (num_bytes == -1)	// not enough coordinates
5624 		return -1;
5625 	    mouse_col = 128 * (bytes[0] - ' ' - 1) + bytes[1] - ' ' - 1;
5626 	    mouse_row = 128 * (bytes[2] - ' ' - 1) + bytes[3] - ' ' - 1;
5627 	    slen += num_bytes;
5628 	    // equal to K_MOUSEMOVE
5629 	    if (key_name[1] == (int)KE_MOUSEMOVE_XY)
5630 		key_name[1] = (int)KE_MOUSEMOVE;
5631 	}
5632 	else
5633 #endif
5634 	/*
5635 	 * If it is a mouse click, get the coordinates.
5636 	 */
5637 	if (key_name[0] == KS_MOUSE
5638 #ifdef FEAT_MOUSE_GPM
5639 		|| key_name[0] == KS_GPM_MOUSE
5640 #endif
5641 #ifdef FEAT_MOUSE_JSB
5642 		|| key_name[0] == KS_JSBTERM_MOUSE
5643 #endif
5644 #ifdef FEAT_MOUSE_NET
5645 		|| key_name[0] == KS_NETTERM_MOUSE
5646 #endif
5647 #ifdef FEAT_MOUSE_DEC
5648 		|| key_name[0] == KS_DEC_MOUSE
5649 #endif
5650 #ifdef FEAT_MOUSE_PTERM
5651 		|| key_name[0] == KS_PTERM_MOUSE
5652 #endif
5653 #ifdef FEAT_MOUSE_URXVT
5654 		|| key_name[0] == KS_URXVT_MOUSE
5655 #endif
5656 		|| key_name[0] == KS_SGR_MOUSE
5657 		|| key_name[0] == KS_SGR_MOUSE_RELEASE)
5658 	{
5659 	    if (check_termcode_mouse(tp, &slen, key_name, modifiers_start, idx,
5660 							     &modifiers) == -1)
5661 		return -1;
5662 	}
5663 
5664 #ifdef FEAT_GUI
5665 	/*
5666 	 * If using the GUI, then we get menu and scrollbar events.
5667 	 *
5668 	 * A menu event is encoded as K_SPECIAL, KS_MENU, KE_FILLER followed by
5669 	 * four bytes which are to be taken as a pointer to the vimmenu_T
5670 	 * structure.
5671 	 *
5672 	 * A tab line event is encoded as K_SPECIAL KS_TABLINE nr, where "nr"
5673 	 * is one byte with the tab index.
5674 	 *
5675 	 * A scrollbar event is K_SPECIAL, KS_VER_SCROLLBAR, KE_FILLER followed
5676 	 * by one byte representing the scrollbar number, and then four bytes
5677 	 * representing a long_u which is the new value of the scrollbar.
5678 	 *
5679 	 * A horizontal scrollbar event is K_SPECIAL, KS_HOR_SCROLLBAR,
5680 	 * KE_FILLER followed by four bytes representing a long_u which is the
5681 	 * new value of the scrollbar.
5682 	 */
5683 # ifdef FEAT_MENU
5684 	else if (key_name[0] == (int)KS_MENU)
5685 	{
5686 	    long_u	val;
5687 	    int		num_bytes = get_long_from_buf(tp + slen, &val);
5688 
5689 	    if (num_bytes == -1)
5690 		return -1;
5691 	    current_menu = (vimmenu_T *)val;
5692 	    slen += num_bytes;
5693 
5694 	    // The menu may have been deleted right after it was used, check
5695 	    // for that.
5696 	    if (check_menu_pointer(root_menu, current_menu) == FAIL)
5697 	    {
5698 		key_name[0] = KS_EXTRA;
5699 		key_name[1] = (int)KE_IGNORE;
5700 	    }
5701 	}
5702 # endif
5703 # ifdef FEAT_GUI_TABLINE
5704 	else if (key_name[0] == (int)KS_TABLINE)
5705 	{
5706 	    // Selecting tabline tab or using its menu.
5707 	    char_u	bytes[6];
5708 	    int		num_bytes = get_bytes_from_buf(tp + slen, bytes, 1);
5709 
5710 	    if (num_bytes == -1)
5711 		return -1;
5712 	    current_tab = (int)bytes[0];
5713 	    if (current_tab == 255)	// -1 in a byte gives 255
5714 		current_tab = -1;
5715 	    slen += num_bytes;
5716 	}
5717 	else if (key_name[0] == (int)KS_TABMENU)
5718 	{
5719 	    // Selecting tabline tab or using its menu.
5720 	    char_u	bytes[6];
5721 	    int		num_bytes = get_bytes_from_buf(tp + slen, bytes, 2);
5722 
5723 	    if (num_bytes == -1)
5724 		return -1;
5725 	    current_tab = (int)bytes[0];
5726 	    current_tabmenu = (int)bytes[1];
5727 	    slen += num_bytes;
5728 	}
5729 # endif
5730 # ifndef USE_ON_FLY_SCROLL
5731 	else if (key_name[0] == (int)KS_VER_SCROLLBAR)
5732 	{
5733 	    long_u	val;
5734 	    char_u	bytes[6];
5735 	    int		num_bytes;
5736 
5737 	    // Get the last scrollbar event in the queue of the same type
5738 	    j = 0;
5739 	    for (i = 0; tp[j] == CSI && tp[j + 1] == KS_VER_SCROLLBAR
5740 						     && tp[j + 2] != NUL; ++i)
5741 	    {
5742 		j += 3;
5743 		num_bytes = get_bytes_from_buf(tp + j, bytes, 1);
5744 		if (num_bytes == -1)
5745 		    break;
5746 		if (i == 0)
5747 		    current_scrollbar = (int)bytes[0];
5748 		else if (current_scrollbar != (int)bytes[0])
5749 		    break;
5750 		j += num_bytes;
5751 		num_bytes = get_long_from_buf(tp + j, &val);
5752 		if (num_bytes == -1)
5753 		    break;
5754 		scrollbar_value = val;
5755 		j += num_bytes;
5756 		slen = j;
5757 	    }
5758 	    if (i == 0)		// not enough characters to make one
5759 		return -1;
5760 	}
5761 	else if (key_name[0] == (int)KS_HOR_SCROLLBAR)
5762 	{
5763 	    long_u	val;
5764 	    int		num_bytes;
5765 
5766 	    // Get the last horiz. scrollbar event in the queue
5767 	    j = 0;
5768 	    for (i = 0; tp[j] == CSI && tp[j + 1] == KS_HOR_SCROLLBAR
5769 						     && tp[j + 2] != NUL; ++i)
5770 	    {
5771 		j += 3;
5772 		num_bytes = get_long_from_buf(tp + j, &val);
5773 		if (num_bytes == -1)
5774 		    break;
5775 		scrollbar_value = val;
5776 		j += num_bytes;
5777 		slen = j;
5778 	    }
5779 	    if (i == 0)		// not enough characters to make one
5780 		return -1;
5781 	}
5782 # endif // !USE_ON_FLY_SCROLL
5783 #endif // FEAT_GUI
5784 
5785 #if (defined(UNIX) || defined(VMS))
5786 	/*
5787 	 * Handle FocusIn/FocusOut event sequences reported by XTerm.
5788 	 * (CSI I/CSI O)
5789 	 */
5790 	if (focus_mode
5791 # ifdef FEAT_GUI
5792 		&& !gui.in_use
5793 # endif
5794 		&& key_name[0] == KS_EXTRA
5795 	    )
5796 	{
5797 	    if (key_name[1] == KE_FOCUSGAINED)
5798 	    {
5799 		if (!focus_state)
5800 		{
5801 		    ui_focus_change(TRUE);
5802 		    did_cursorhold = TRUE;
5803 		    focus_state = TRUE;
5804 		}
5805 		key_name[1] = (int)KE_IGNORE;
5806 	    }
5807 	    else if (key_name[1] == KE_FOCUSLOST)
5808 	    {
5809 		if (focus_state)
5810 		{
5811 		    ui_focus_change(FALSE);
5812 		    did_cursorhold = TRUE;
5813 		    focus_state = FALSE;
5814 		}
5815 		key_name[1] = (int)KE_IGNORE;
5816 	    }
5817 	}
5818 #endif
5819 
5820 	/*
5821 	 * Change <xHome> to <Home>, <xUp> to <Up>, etc.
5822 	 */
5823 	key = handle_x_keys(TERMCAP2KEY(key_name[0], key_name[1]));
5824 
5825 	/*
5826 	 * Add any modifier codes to our string.
5827 	 */
5828 	new_slen = modifiers2keycode(modifiers, &key, string);
5829 
5830 	// Finally, add the special key code to our string
5831 	key_name[0] = KEY2TERMCAP0(key);
5832 	key_name[1] = KEY2TERMCAP1(key);
5833 	if (key_name[0] == KS_KEY)
5834 	{
5835 	    // from ":set <M-b>=xx"
5836 	    if (has_mbyte)
5837 		new_slen += (*mb_char2bytes)(key_name[1], string + new_slen);
5838 	    else
5839 		string[new_slen++] = key_name[1];
5840 	}
5841 	else if (new_slen == 0 && key_name[0] == KS_EXTRA
5842 						  && key_name[1] == KE_IGNORE)
5843 	{
5844 	    // Do not put K_IGNORE into the buffer, do return KEYLEN_REMOVED
5845 	    // to indicate what happened.
5846 	    retval = KEYLEN_REMOVED;
5847 	}
5848 	else
5849 	{
5850 	    string[new_slen++] = K_SPECIAL;
5851 	    string[new_slen++] = key_name[0];
5852 	    string[new_slen++] = key_name[1];
5853 	}
5854 	if (put_string_in_typebuf(offset, slen, string, new_slen,
5855 						 buf, bufsize, buflen) == FAIL)
5856 	    return -1;
5857 	return retval == 0 ? (len + new_slen - slen + offset) : retval;
5858     }
5859 
5860 #ifdef FEAT_TERMRESPONSE
5861     LOG_TR(("normal character"));
5862 #endif
5863 
5864     return 0;			    // no match found
5865 }
5866 
5867 #if (defined(FEAT_TERMINAL) && defined(FEAT_TERMRESPONSE)) || defined(PROTO)
5868 /*
5869  * Get the text foreground color, if known.
5870  */
5871     void
term_get_fg_color(char_u * r,char_u * g,char_u * b)5872 term_get_fg_color(char_u *r, char_u *g, char_u *b)
5873 {
5874     if (rfg_status.tr_progress == STATUS_GOT)
5875     {
5876 	*r = fg_r;
5877 	*g = fg_g;
5878 	*b = fg_b;
5879     }
5880 }
5881 
5882 /*
5883  * Get the text background color, if known.
5884  */
5885     void
term_get_bg_color(char_u * r,char_u * g,char_u * b)5886 term_get_bg_color(char_u *r, char_u *g, char_u *b)
5887 {
5888     if (rbg_status.tr_progress == STATUS_GOT)
5889     {
5890 	*r = bg_r;
5891 	*g = bg_g;
5892 	*b = bg_b;
5893     }
5894 }
5895 #endif
5896 
5897 /*
5898  * Replace any terminal code strings in from[] with the equivalent internal
5899  * vim representation.	This is used for the "from" and "to" part of a
5900  * mapping, and the "to" part of a menu command.
5901  * Any strings like "<C-UP>" are also replaced, unless 'cpoptions' contains
5902  * '<'.
5903  * K_SPECIAL by itself is replaced by K_SPECIAL KS_SPECIAL KE_FILLER.
5904  *
5905  * The replacement is done in result[] and finally copied into allocated
5906  * memory. If this all works well *bufp is set to the allocated memory and a
5907  * pointer to it is returned. If something fails *bufp is set to NULL and from
5908  * is returned.
5909  *
5910  * CTRL-V characters are removed.  When "flags" has REPTERM_FROM_PART, a
5911  * trailing CTRL-V is included, otherwise it is removed (for ":map xx ^V", maps
5912  * xx to nothing).  When 'cpoptions' does not contain 'B', a backslash can be
5913  * used instead of a CTRL-V.
5914  *
5915  * Flags:
5916  *  REPTERM_FROM_PART	see above
5917  *  REPTERM_DO_LT	also translate <lt>
5918  *  REPTERM_SPECIAL	always accept <key> notation
5919  *  REPTERM_NO_SIMPLIFY	do not simplify <C-H> to 0x08 and set 8th bit for <A-x>
5920  *
5921  * "did_simplify" is set when some <C-H> or <A-x> code was simplified, unless
5922  * it is NULL.
5923  */
5924     char_u *
replace_termcodes(char_u * from,char_u ** bufp,int flags,int * did_simplify)5925 replace_termcodes(
5926     char_u	*from,
5927     char_u	**bufp,
5928     int		flags,
5929     int		*did_simplify)
5930 {
5931     int		i;
5932     int		slen;
5933     int		key;
5934     int		dlen = 0;
5935     char_u	*src;
5936     int		do_backslash;	// backslash is a special character
5937     int		do_special;	// recognize <> key codes
5938     int		do_key_code;	// recognize raw key codes
5939     char_u	*result;	// buffer for resulting string
5940 
5941     do_backslash = (vim_strchr(p_cpo, CPO_BSLASH) == NULL);
5942     do_special = (vim_strchr(p_cpo, CPO_SPECI) == NULL)
5943 						  || (flags & REPTERM_SPECIAL);
5944     do_key_code = (vim_strchr(p_cpo, CPO_KEYCODE) == NULL);
5945 
5946     /*
5947      * Allocate space for the translation.  Worst case a single character is
5948      * replaced by 6 bytes (shifted special key), plus a NUL at the end.
5949      */
5950     result = alloc(STRLEN(from) * 6 + 1);
5951     if (result == NULL)		// out of memory
5952     {
5953 	*bufp = NULL;
5954 	return from;
5955     }
5956 
5957     src = from;
5958 
5959     /*
5960      * Check for #n at start only: function key n
5961      */
5962     if ((flags & REPTERM_FROM_PART) && src[0] == '#' && VIM_ISDIGIT(src[1]))
5963     {
5964 	result[dlen++] = K_SPECIAL;
5965 	result[dlen++] = 'k';
5966 	if (src[1] == '0')
5967 	    result[dlen++] = ';';	// #0 is F10 is "k;"
5968 	else
5969 	    result[dlen++] = src[1];	// #3 is F3 is "k3"
5970 	src += 2;
5971     }
5972 
5973     /*
5974      * Copy each byte from *from to result[dlen]
5975      */
5976     while (*src != NUL)
5977     {
5978 	/*
5979 	 * If 'cpoptions' does not contain '<', check for special key codes,
5980 	 * like "<C-S-LeftMouse>"
5981 	 */
5982 	if (do_special && ((flags & REPTERM_DO_LT)
5983 					      || STRNCMP(src, "<lt>", 4) != 0))
5984 	{
5985 #ifdef FEAT_EVAL
5986 	    /*
5987 	     * Replace <SID> by K_SNR <script-nr> _.
5988 	     * (room: 5 * 6 = 30 bytes; needed: 3 + <nr> + 1 <= 14)
5989 	     */
5990 	    if (STRNICMP(src, "<SID>", 5) == 0)
5991 	    {
5992 		if (current_sctx.sc_sid <= 0)
5993 		    emsg(_(e_usingsid));
5994 		else
5995 		{
5996 		    src += 5;
5997 		    result[dlen++] = K_SPECIAL;
5998 		    result[dlen++] = (int)KS_EXTRA;
5999 		    result[dlen++] = (int)KE_SNR;
6000 		    sprintf((char *)result + dlen, "%ld",
6001 						    (long)current_sctx.sc_sid);
6002 		    dlen += (int)STRLEN(result + dlen);
6003 		    result[dlen++] = '_';
6004 		    continue;
6005 		}
6006 	    }
6007 #endif
6008 
6009 	    slen = trans_special(&src, result + dlen, FSK_KEYCODE
6010 			  | ((flags & REPTERM_NO_SIMPLIFY) ? 0 : FSK_SIMPLIFY),
6011 								 did_simplify);
6012 	    if (slen)
6013 	    {
6014 		dlen += slen;
6015 		continue;
6016 	    }
6017 	}
6018 
6019 	/*
6020 	 * If 'cpoptions' does not contain 'k', see if it's an actual key-code.
6021 	 * Note that this is also checked after replacing the <> form.
6022 	 * Single character codes are NOT replaced (e.g. ^H or DEL), because
6023 	 * it could be a character in the file.
6024 	 */
6025 	if (do_key_code)
6026 	{
6027 	    i = find_term_bykeys(src);
6028 	    if (i >= 0)
6029 	    {
6030 		result[dlen++] = K_SPECIAL;
6031 		result[dlen++] = termcodes[i].name[0];
6032 		result[dlen++] = termcodes[i].name[1];
6033 		src += termcodes[i].len;
6034 		// If terminal code matched, continue after it.
6035 		continue;
6036 	    }
6037 	}
6038 
6039 #ifdef FEAT_EVAL
6040 	if (do_special)
6041 	{
6042 	    char_u	*p, *s, len;
6043 
6044 	    /*
6045 	     * Replace <Leader> by the value of "mapleader".
6046 	     * Replace <LocalLeader> by the value of "maplocalleader".
6047 	     * If "mapleader" or "maplocalleader" isn't set use a backslash.
6048 	     */
6049 	    if (STRNICMP(src, "<Leader>", 8) == 0)
6050 	    {
6051 		len = 8;
6052 		p = get_var_value((char_u *)"g:mapleader");
6053 	    }
6054 	    else if (STRNICMP(src, "<LocalLeader>", 13) == 0)
6055 	    {
6056 		len = 13;
6057 		p = get_var_value((char_u *)"g:maplocalleader");
6058 	    }
6059 	    else
6060 	    {
6061 		len = 0;
6062 		p = NULL;
6063 	    }
6064 	    if (len != 0)
6065 	    {
6066 		// Allow up to 8 * 6 characters for "mapleader".
6067 		if (p == NULL || *p == NUL || STRLEN(p) > 8 * 6)
6068 		    s = (char_u *)"\\";
6069 		else
6070 		    s = p;
6071 		while (*s != NUL)
6072 		    result[dlen++] = *s++;
6073 		src += len;
6074 		continue;
6075 	    }
6076 	}
6077 #endif
6078 
6079 	/*
6080 	 * Remove CTRL-V and ignore the next character.
6081 	 * For "from" side the CTRL-V at the end is included, for the "to"
6082 	 * part it is removed.
6083 	 * If 'cpoptions' does not contain 'B', also accept a backslash.
6084 	 */
6085 	key = *src;
6086 	if (key == Ctrl_V || (do_backslash && key == '\\'))
6087 	{
6088 	    ++src;				// skip CTRL-V or backslash
6089 	    if (*src == NUL)
6090 	    {
6091 		if (flags & REPTERM_FROM_PART)
6092 		    result[dlen++] = key;
6093 		break;
6094 	    }
6095 	}
6096 
6097 	// skip multibyte char correctly
6098 	for (i = (*mb_ptr2len)(src); i > 0; --i)
6099 	{
6100 	    /*
6101 	     * If the character is K_SPECIAL, replace it with K_SPECIAL
6102 	     * KS_SPECIAL KE_FILLER.
6103 	     * If compiled with the GUI replace CSI with K_CSI.
6104 	     */
6105 	    if (*src == K_SPECIAL)
6106 	    {
6107 		result[dlen++] = K_SPECIAL;
6108 		result[dlen++] = KS_SPECIAL;
6109 		result[dlen++] = KE_FILLER;
6110 	    }
6111 # ifdef FEAT_GUI
6112 	    else if (*src == CSI)
6113 	    {
6114 		result[dlen++] = K_SPECIAL;
6115 		result[dlen++] = KS_EXTRA;
6116 		result[dlen++] = (int)KE_CSI;
6117 	    }
6118 # endif
6119 	    else
6120 		result[dlen++] = *src;
6121 	    ++src;
6122 	}
6123     }
6124     result[dlen] = NUL;
6125 
6126     /*
6127      * Copy the new string to allocated memory.
6128      * If this fails, just return from.
6129      */
6130     if ((*bufp = vim_strsave(result)) != NULL)
6131 	from = *bufp;
6132     vim_free(result);
6133     return from;
6134 }
6135 
6136 /*
6137  * Find a termcode with keys 'src' (must be NUL terminated).
6138  * Return the index in termcodes[], or -1 if not found.
6139  */
6140     static int
find_term_bykeys(char_u * src)6141 find_term_bykeys(char_u *src)
6142 {
6143     int		i;
6144     int		slen = (int)STRLEN(src);
6145 
6146     for (i = 0; i < tc_len; ++i)
6147     {
6148 	if (slen == termcodes[i].len
6149 			&& STRNCMP(termcodes[i].code, src, (size_t)slen) == 0)
6150 	    return i;
6151     }
6152     return -1;
6153 }
6154 
6155 /*
6156  * Gather the first characters in the terminal key codes into a string.
6157  * Used to speed up check_termcode().
6158  */
6159     static void
gather_termleader(void)6160 gather_termleader(void)
6161 {
6162     int	    i;
6163     int	    len = 0;
6164 
6165 #ifdef FEAT_GUI
6166     if (gui.in_use)
6167 	termleader[len++] = CSI;    // the GUI codes are not in termcodes[]
6168 #endif
6169 #ifdef FEAT_TERMRESPONSE
6170     if (check_for_codes || *T_CRS != NUL)
6171 	termleader[len++] = DCS;    // the termcode response starts with DCS
6172 				    // in 8-bit mode
6173 #endif
6174     termleader[len] = NUL;
6175 
6176     for (i = 0; i < tc_len; ++i)
6177 	if (vim_strchr(termleader, termcodes[i].code[0]) == NULL)
6178 	{
6179 	    termleader[len++] = termcodes[i].code[0];
6180 	    termleader[len] = NUL;
6181 	}
6182 
6183     need_gather = FALSE;
6184 }
6185 
6186 /*
6187  * Show all termcodes (for ":set termcap")
6188  * This code looks a lot like showoptions(), but is different.
6189  */
6190     void
show_termcodes(void)6191 show_termcodes(void)
6192 {
6193     int		col;
6194     int		*items;
6195     int		item_count;
6196     int		run;
6197     int		row, rows;
6198     int		cols;
6199     int		i;
6200     int		len;
6201 
6202 #define INC3 27	    // try to make three columns
6203 #define INC2 40	    // try to make two columns
6204 #define GAP 2	    // spaces between columns
6205 
6206     if (tc_len == 0)	    // no terminal codes (must be GUI)
6207 	return;
6208     items = ALLOC_MULT(int, tc_len);
6209     if (items == NULL)
6210 	return;
6211 
6212     // Highlight title
6213     msg_puts_title(_("\n--- Terminal keys ---"));
6214 
6215     /*
6216      * do the loop two times:
6217      * 1. display the short items (non-strings and short strings)
6218      * 2. display the medium items (medium length strings)
6219      * 3. display the long items (remaining strings)
6220      */
6221     for (run = 1; run <= 3 && !got_int; ++run)
6222     {
6223 	/*
6224 	 * collect the items in items[]
6225 	 */
6226 	item_count = 0;
6227 	for (i = 0; i < tc_len; i++)
6228 	{
6229 	    len = show_one_termcode(termcodes[i].name,
6230 						    termcodes[i].code, FALSE);
6231 	    if (len <= INC3 - GAP ? run == 1
6232 			: len <= INC2 - GAP ? run == 2
6233 			: run == 3)
6234 		items[item_count++] = i;
6235 	}
6236 
6237 	/*
6238 	 * display the items
6239 	 */
6240 	if (run <= 2)
6241 	{
6242 	    cols = (Columns + GAP) / (run == 1 ? INC3 : INC2);
6243 	    if (cols == 0)
6244 		cols = 1;
6245 	    rows = (item_count + cols - 1) / cols;
6246 	}
6247 	else	// run == 3
6248 	    rows = item_count;
6249 	for (row = 0; row < rows && !got_int; ++row)
6250 	{
6251 	    msg_putchar('\n');			// go to next line
6252 	    if (got_int)			// 'q' typed in more
6253 		break;
6254 	    col = 0;
6255 	    for (i = row; i < item_count; i += rows)
6256 	    {
6257 		msg_col = col;			// make columns
6258 		show_one_termcode(termcodes[items[i]].name,
6259 					      termcodes[items[i]].code, TRUE);
6260 		if (run == 2)
6261 		    col += INC2;
6262 		else
6263 		    col += INC3;
6264 	    }
6265 	    out_flush();
6266 	    ui_breakcheck();
6267 	}
6268     }
6269     vim_free(items);
6270 }
6271 
6272 /*
6273  * Show one termcode entry.
6274  * Output goes into IObuff[]
6275  */
6276     int
show_one_termcode(char_u * name,char_u * code,int printit)6277 show_one_termcode(char_u *name, char_u *code, int printit)
6278 {
6279     char_u	*p;
6280     int		len;
6281 
6282     if (name[0] > '~')
6283     {
6284 	IObuff[0] = ' ';
6285 	IObuff[1] = ' ';
6286 	IObuff[2] = ' ';
6287 	IObuff[3] = ' ';
6288     }
6289     else
6290     {
6291 	IObuff[0] = 't';
6292 	IObuff[1] = '_';
6293 	IObuff[2] = name[0];
6294 	IObuff[3] = name[1];
6295     }
6296     IObuff[4] = ' ';
6297 
6298     p = get_special_key_name(TERMCAP2KEY(name[0], name[1]), 0);
6299     if (p[1] != 't')
6300 	STRCPY(IObuff + 5, p);
6301     else
6302 	IObuff[5] = NUL;
6303     len = (int)STRLEN(IObuff);
6304     do
6305 	IObuff[len++] = ' ';
6306     while (len < 17);
6307     IObuff[len] = NUL;
6308     if (code == NULL)
6309 	len += 4;
6310     else
6311 	len += vim_strsize(code);
6312 
6313     if (printit)
6314     {
6315 	msg_puts((char *)IObuff);
6316 	if (code == NULL)
6317 	    msg_puts("NULL");
6318 	else
6319 	    msg_outtrans(code);
6320     }
6321     return len;
6322 }
6323 
6324 #if defined(FEAT_TERMRESPONSE) || defined(PROTO)
6325 /*
6326  * For Xterm >= 140 compiled with OPT_TCAP_QUERY: Obtain the actually used
6327  * termcap codes from the terminal itself.
6328  * We get them one by one to avoid a very long response string.
6329  */
6330 static int xt_index_in = 0;
6331 static int xt_index_out = 0;
6332 
6333     static void
req_codes_from_term(void)6334 req_codes_from_term(void)
6335 {
6336     xt_index_out = 0;
6337     xt_index_in = 0;
6338     req_more_codes_from_term();
6339 }
6340 
6341     static void
req_more_codes_from_term(void)6342 req_more_codes_from_term(void)
6343 {
6344     char	buf[11];
6345     int		old_idx = xt_index_out;
6346 
6347     // Don't do anything when going to exit.
6348     if (exiting)
6349 	return;
6350 
6351     // Send up to 10 more requests out than we received.  Avoid sending too
6352     // many, there can be a buffer overflow somewhere.
6353     while (xt_index_out < xt_index_in + 10 && key_names[xt_index_out] != NULL)
6354     {
6355 	char *key_name = key_names[xt_index_out];
6356 
6357 #ifdef FEAT_JOB_CHANNEL
6358 	ch_log_output = TRUE;
6359 #endif
6360 	LOG_TR(("Requesting XT %d: %s", xt_index_out, key_name));
6361 	sprintf(buf, "\033P+q%02x%02x\033\\", key_name[0], key_name[1]);
6362 	out_str_nf((char_u *)buf);
6363 	++xt_index_out;
6364     }
6365 
6366     // Send the codes out right away.
6367     if (xt_index_out != old_idx)
6368 	out_flush();
6369 }
6370 
6371 /*
6372  * Decode key code response from xterm: '<Esc>P1+r<name>=<string><Esc>\'.
6373  * A "0" instead of the "1" indicates a code that isn't supported.
6374  * Both <name> and <string> are encoded in hex.
6375  * "code" points to the "0" or "1".
6376  */
6377     static void
got_code_from_term(char_u * code,int len)6378 got_code_from_term(char_u *code, int len)
6379 {
6380 #define XT_LEN 100
6381     char_u	name[3];
6382     char_u	str[XT_LEN];
6383     int		i;
6384     int		j = 0;
6385     int		c;
6386 
6387     // A '1' means the code is supported, a '0' means it isn't.
6388     // When half the length is > XT_LEN we can't use it.
6389     // Our names are currently all 2 characters.
6390     if (code[0] == '1' && code[7] == '=' && len / 2 < XT_LEN)
6391     {
6392 	// Get the name from the response and find it in the table.
6393 	name[0] = hexhex2nr(code + 3);
6394 	name[1] = hexhex2nr(code + 5);
6395 	name[2] = NUL;
6396 	for (i = 0; key_names[i] != NULL; ++i)
6397 	{
6398 	    if (STRCMP(key_names[i], name) == 0)
6399 	    {
6400 		xt_index_in = i;
6401 		break;
6402 	    }
6403 	}
6404 
6405 	LOG_TR(("Received XT %d: %s", xt_index_in, (char *)name));
6406 
6407 	if (key_names[i] != NULL)
6408 	{
6409 	    for (i = 8; (c = hexhex2nr(code + i)) >= 0; i += 2)
6410 		str[j++] = c;
6411 	    str[j] = NUL;
6412 	    if (name[0] == 'C' && name[1] == 'o')
6413 	    {
6414 		// Color count is not a key code.
6415 		i = atoi((char *)str);
6416 		may_adjust_color_count(i);
6417 	    }
6418 	    else
6419 	    {
6420 		// First delete any existing entry with the same code.
6421 		i = find_term_bykeys(str);
6422 		if (i >= 0)
6423 		    del_termcode_idx(i);
6424 		add_termcode(name, str, ATC_FROM_TERM);
6425 	    }
6426 	}
6427     }
6428 
6429     // May request more codes now that we received one.
6430     ++xt_index_in;
6431     req_more_codes_from_term();
6432 }
6433 
6434 /*
6435  * Check if there are any unanswered requests and deal with them.
6436  * This is called before starting an external program or getting direct
6437  * keyboard input.  We don't want responses to be send to that program or
6438  * handled as typed text.
6439  */
6440     static void
check_for_codes_from_term(void)6441 check_for_codes_from_term(void)
6442 {
6443     int		c;
6444 
6445     // If no codes requested or all are answered, no need to wait.
6446     if (xt_index_out == 0 || xt_index_out == xt_index_in)
6447 	return;
6448 
6449     // Vgetc() will check for and handle any response.
6450     // Keep calling vpeekc() until we don't get any responses.
6451     ++no_mapping;
6452     ++allow_keys;
6453     for (;;)
6454     {
6455 	c = vpeekc();
6456 	if (c == NUL)	    // nothing available
6457 	    break;
6458 
6459 	// If a response is recognized it's replaced with K_IGNORE, must read
6460 	// it from the input stream.  If there is no K_IGNORE we can't do
6461 	// anything, break here (there might be some responses further on, but
6462 	// we don't want to throw away any typed chars).
6463 	if (c != K_SPECIAL && c != K_IGNORE)
6464 	    break;
6465 	c = vgetc();
6466 	if (c != K_IGNORE)
6467 	{
6468 	    vungetc(c);
6469 	    break;
6470 	}
6471     }
6472     --no_mapping;
6473     --allow_keys;
6474 }
6475 #endif
6476 
6477 #if (defined(MSWIN) && (!defined(FEAT_GUI) || defined(VIMDLL))) || defined(PROTO)
6478 static char ksme_str[20];
6479 static char ksmr_str[20];
6480 static char ksmd_str[20];
6481 
6482 /*
6483  * For Win32 console: update termcap codes for existing console attributes.
6484  */
6485     void
update_tcap(int attr)6486 update_tcap(int attr)
6487 {
6488     struct builtin_term *p;
6489 
6490     p = find_builtin_term(DEFAULT_TERM);
6491     sprintf(ksme_str, IF_EB("\033|%dm", ESC_STR "|%dm"), attr);
6492     sprintf(ksmd_str, IF_EB("\033|%dm", ESC_STR "|%dm"),
6493 				     attr | 0x08);  // FOREGROUND_INTENSITY
6494     sprintf(ksmr_str, IF_EB("\033|%dm", ESC_STR "|%dm"),
6495 				 ((attr & 0x0F) << 4) | ((attr & 0xF0) >> 4));
6496 
6497     while (p->bt_string != NULL)
6498     {
6499       if (p->bt_entry == (int)KS_ME)
6500 	  p->bt_string = &ksme_str[0];
6501       else if (p->bt_entry == (int)KS_MR)
6502 	  p->bt_string = &ksmr_str[0];
6503       else if (p->bt_entry == (int)KS_MD)
6504 	  p->bt_string = &ksmd_str[0];
6505       ++p;
6506     }
6507 }
6508 
6509 # ifdef FEAT_TERMGUICOLORS
6510 #  define KSSIZE 20
6511 struct ks_tbl_s
6512 {
6513     int  code;		// value of KS_
6514     char *vtp;		// code in vtp mode
6515     char *vtp2;		// code in vtp2 mode
6516     char buf[KSSIZE];   // save buffer in non-vtp mode
6517     char vbuf[KSSIZE];  // save buffer in vtp mode
6518     char v2buf[KSSIZE]; // save buffer in vtp2 mode
6519     char arr[KSSIZE];   // real buffer
6520 };
6521 
6522 static struct ks_tbl_s ks_tbl[] =
6523 {
6524     {(int)KS_ME,  "\033|0m",  "\033|0m"},   // normal
6525     {(int)KS_MR,  "\033|7m",  "\033|7m"},   // reverse
6526     {(int)KS_MD,  "\033|1m",  "\033|1m"},   // bold
6527     {(int)KS_SO,  "\033|91m", "\033|91m"},  // standout: bright red text
6528     {(int)KS_SE,  "\033|39m", "\033|39m"},  // standout end: default color
6529     {(int)KS_CZH, "\033|95m", "\033|95m"},  // italic: bright magenta text
6530     {(int)KS_CZR, "\033|0m",  "\033|0m"},   // italic end
6531     {(int)KS_US,  "\033|4m",  "\033|4m"},   // underscore
6532     {(int)KS_UE,  "\033|24m", "\033|24m"},  // underscore end
6533 #  ifdef TERMINFO
6534     {(int)KS_CAB, "\033|%p1%db", "\033|%p14%dm"}, // set background color
6535     {(int)KS_CAF, "\033|%p1%df", "\033|%p13%dm"}, // set foreground color
6536     {(int)KS_CS,  "\033|%p1%d;%p2%dR", "\033|%p1%d;%p2%dR"},
6537     {(int)KS_CSV, "\033|%p1%d;%p2%dV", "\033|%p1%d;%p2%dV"},
6538 #  else
6539     {(int)KS_CAB, "\033|%db", "\033|4%dm"}, // set background color
6540     {(int)KS_CAF, "\033|%df", "\033|3%dm"}, // set foreground color
6541     {(int)KS_CS,  "\033|%d;%dR", "\033|%d;%dR"},
6542     {(int)KS_CSV, "\033|%d;%dV", "\033|%d;%dV"},
6543 #  endif
6544     {(int)KS_CCO, "256", "256"},	    // colors
6545     {(int)KS_NAME}			    // terminator
6546 };
6547 
6548     static struct builtin_term *
find_first_tcap(char_u * name,int code)6549 find_first_tcap(
6550     char_u *name,
6551     int	    code)
6552 {
6553     struct builtin_term *p;
6554 
6555     for (p = find_builtin_term(name); p->bt_string != NULL; ++p)
6556 	if (p->bt_entry == code)
6557 	    return p;
6558     return NULL;
6559 }
6560 # endif
6561 
6562 /*
6563  * For Win32 console: replace the sequence immediately after termguicolors.
6564  */
6565     void
swap_tcap(void)6566 swap_tcap(void)
6567 {
6568 # ifdef FEAT_TERMGUICOLORS
6569     static int		init_done = FALSE;
6570     static int		curr_mode;
6571     struct ks_tbl_s	*ks;
6572     struct builtin_term *bt;
6573     int			mode;
6574     enum
6575     {
6576 	CMODEINDEX,
6577 	CMODE24,
6578 	CMODE256
6579     };
6580 
6581     // buffer initialization
6582     if (!init_done)
6583     {
6584 	for (ks = ks_tbl; ks->code != (int)KS_NAME; ks++)
6585 	{
6586 	    bt = find_first_tcap(DEFAULT_TERM, ks->code);
6587 	    if (bt != NULL)
6588 	    {
6589 		STRNCPY(ks->buf, bt->bt_string, KSSIZE);
6590 		STRNCPY(ks->vbuf, ks->vtp, KSSIZE);
6591 		STRNCPY(ks->v2buf, ks->vtp2, KSSIZE);
6592 
6593 		STRNCPY(ks->arr, bt->bt_string, KSSIZE);
6594 		bt->bt_string = &ks->arr[0];
6595 	    }
6596 	}
6597 	init_done = TRUE;
6598 	curr_mode = CMODEINDEX;
6599     }
6600 
6601     if (p_tgc)
6602 	mode = CMODE24;
6603     else if (t_colors >= 256)
6604 	mode = CMODE256;
6605     else
6606 	mode = CMODEINDEX;
6607 
6608     for (ks = ks_tbl; ks->code != (int)KS_NAME; ks++)
6609     {
6610 	bt = find_first_tcap(DEFAULT_TERM, ks->code);
6611 	if (bt != NULL)
6612 	{
6613 	    switch (curr_mode)
6614 	    {
6615 	    case CMODEINDEX:
6616 		STRNCPY(&ks->buf[0], bt->bt_string, KSSIZE);
6617 		break;
6618 	    case CMODE24:
6619 		STRNCPY(&ks->vbuf[0], bt->bt_string, KSSIZE);
6620 		break;
6621 	    default:
6622 		STRNCPY(&ks->v2buf[0], bt->bt_string, KSSIZE);
6623 	    }
6624 	}
6625     }
6626 
6627     if (mode != curr_mode)
6628     {
6629 	for (ks = ks_tbl; ks->code != (int)KS_NAME; ks++)
6630 	{
6631 	    bt = find_first_tcap(DEFAULT_TERM, ks->code);
6632 	    if (bt != NULL)
6633 	    {
6634 		switch (mode)
6635 		{
6636 		case CMODEINDEX:
6637 		    STRNCPY(bt->bt_string, &ks->buf[0], KSSIZE);
6638 		    break;
6639 		case CMODE24:
6640 		    STRNCPY(bt->bt_string, &ks->vbuf[0], KSSIZE);
6641 		    break;
6642 		default:
6643 		    STRNCPY(bt->bt_string, &ks->v2buf[0], KSSIZE);
6644 		}
6645 	    }
6646 	}
6647 
6648 	curr_mode = mode;
6649     }
6650 # endif
6651 }
6652 
6653 #endif
6654 
6655 
6656 #if (defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL))) || defined(FEAT_TERMINAL) \
6657 	|| defined(PROTO)
6658 static int cube_value[] = {
6659     0x00, 0x5F, 0x87, 0xAF, 0xD7, 0xFF
6660 };
6661 
6662 static int grey_ramp[] = {
6663     0x08, 0x12, 0x1C, 0x26, 0x30, 0x3A, 0x44, 0x4E, 0x58, 0x62, 0x6C, 0x76,
6664     0x80, 0x8A, 0x94, 0x9E, 0xA8, 0xB2, 0xBC, 0xC6, 0xD0, 0xDA, 0xE4, 0xEE
6665 };
6666 
6667 static char_u ansi_table[16][4] = {
6668 //   R    G    B   idx
6669   {  0,   0,   0,  1}, // black
6670   {224,   0,   0,  2}, // dark red
6671   {  0, 224,   0,  3}, // dark green
6672   {224, 224,   0,  4}, // dark yellow / brown
6673   {  0,   0, 224,  5}, // dark blue
6674   {224,   0, 224,  6}, // dark magenta
6675   {  0, 224, 224,  7}, // dark cyan
6676   {224, 224, 224,  8}, // light grey
6677 
6678   {128, 128, 128,  9}, // dark grey
6679   {255,  64,  64, 10}, // light red
6680   { 64, 255,  64, 11}, // light green
6681   {255, 255,  64, 12}, // yellow
6682   { 64,  64, 255, 13}, // light blue
6683   {255,  64, 255, 14}, // light magenta
6684   { 64, 255, 255, 15}, // light cyan
6685   {255, 255, 255, 16}, // white
6686 };
6687 
6688 #define ANSI_INDEX_NONE 0
6689 
6690     void
cterm_color2rgb(int nr,char_u * r,char_u * g,char_u * b,char_u * ansi_idx)6691 cterm_color2rgb(int nr, char_u *r, char_u *g, char_u *b, char_u *ansi_idx)
6692 {
6693     int idx;
6694 
6695     if (nr < 16)
6696     {
6697 	*r = ansi_table[nr][0];
6698 	*g = ansi_table[nr][1];
6699 	*b = ansi_table[nr][2];
6700 	*ansi_idx = ansi_table[nr][3];
6701     }
6702     else if (nr < 232)
6703     {
6704 	// 216 color cube
6705 	idx = nr - 16;
6706 	*r = cube_value[idx / 36 % 6];
6707 	*g = cube_value[idx / 6  % 6];
6708 	*b = cube_value[idx      % 6];
6709 	*ansi_idx = ANSI_INDEX_NONE;
6710     }
6711     else if (nr < 256)
6712     {
6713 	// 24 grey scale ramp
6714 	idx = nr - 232;
6715 	*r = grey_ramp[idx];
6716 	*g = grey_ramp[idx];
6717 	*b = grey_ramp[idx];
6718 	*ansi_idx = ANSI_INDEX_NONE;
6719     }
6720     else
6721     {
6722 	*r = 0;
6723 	*g = 0;
6724 	*b = 0;
6725 	*ansi_idx = ANSI_INDEX_NONE;
6726     }
6727 }
6728 #endif
6729 
6730 /*
6731  * Replace K_BS by <BS> and K_DEL by <DEL>
6732  */
6733     void
term_replace_bs_del_keycode(char_u * ta_buf,int ta_len,int len)6734 term_replace_bs_del_keycode(char_u *ta_buf, int ta_len, int len)
6735 {
6736     int		i;
6737     int		c;
6738 
6739     for (i = ta_len; i < ta_len + len; ++i)
6740     {
6741 	if (ta_buf[i] == CSI && len - i > 2)
6742 	{
6743 	    c = TERMCAP2KEY(ta_buf[i + 1], ta_buf[i + 2]);
6744 	    if (c == K_DEL || c == K_KDEL || c == K_BS)
6745 	    {
6746 		mch_memmove(ta_buf + i + 1, ta_buf + i + 3,
6747 			(size_t)(len - i - 2));
6748 		if (c == K_DEL || c == K_KDEL)
6749 		    ta_buf[i] = DEL;
6750 		else
6751 		    ta_buf[i] = Ctrl_H;
6752 		len -= 2;
6753 	    }
6754 	}
6755 	else if (ta_buf[i] == '\r')
6756 	    ta_buf[i] = '\n';
6757 	if (has_mbyte)
6758 	    i += (*mb_ptr2len_len)(ta_buf + i, ta_len + len - i) - 1;
6759     }
6760 }
6761