xref: /vim-8.2.3635/src/term.c (revision cf2d8dee)
1 /* vi:set ts=8 sts=4 sw=4:
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 
25 #define tgetstr tgetstr_defined_wrong
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
42 # else
43 #  ifdef HAVE_OUTFUNTYPE
44 #   define TPUTSFUNCAST (outfuntype)
45 #  else
46 #   define TPUTSFUNCAST (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 struct builtin_term *find_builtin_term(char_u *name);
78 static void parse_builtin_tcap(char_u *s);
79 static void term_color(char_u *s, int n);
80 static void gather_termleader(void);
81 #ifdef FEAT_TERMRESPONSE
82 static void req_codes_from_term(void);
83 static void req_more_codes_from_term(void);
84 static void got_code_from_term(char_u *code, int len);
85 static void check_for_codes_from_term(void);
86 #endif
87 #if defined(FEAT_GUI) \
88     || (defined(FEAT_MOUSE) && (!defined(UNIX) || defined(FEAT_MOUSE_XTERM) \
89 		|| defined(FEAT_MOUSE_GPM) || defined(FEAT_SYSMOUSE)))
90 static int get_bytes_from_buf(char_u *, char_u *, int);
91 #endif
92 static void del_termcode_idx(int idx);
93 static int term_is_builtin(char_u *name);
94 static int term_7to8bit(char_u *p);
95 #ifdef FEAT_TERMRESPONSE
96 static void switch_to_8bit(void);
97 #endif
98 
99 #ifdef HAVE_TGETENT
100 static char_u *tgetent_error(char_u *, char_u *);
101 
102 /*
103  * Here is our own prototype for tgetstr(), any prototypes from the include
104  * files have been disabled by the define at the start of this file.
105  */
106 char		*tgetstr(char *, char **);
107 
108 # ifdef FEAT_TERMRESPONSE
109     /* Change this to "if 1" to debug what happens with termresponse. */
110 #  if 0
111 #   define DEBUG_TERMRESPONSE
112     static void log_tr(char *msg);
113 #   define LOG_TR(msg) log_tr(msg)
114 #  else
115 #   define LOG_TR(msg)
116 #  endif
117 /* Request Terminal Version status: */
118 #  define CRV_GET	1	/* send T_CRV when switched to RAW mode */
119 #  define CRV_SENT	2	/* did send T_CRV, waiting for answer */
120 #  define CRV_GOT	3	/* received T_CRV response */
121 static int crv_status = CRV_GET;
122 /* Request Cursor position report: */
123 #  define U7_GET	1	/* send T_U7 when switched to RAW mode */
124 #  define U7_SENT	2	/* did send T_U7, waiting for answer */
125 #  define U7_GOT	3	/* received T_U7 response */
126 static int u7_status = U7_GET;
127 /* Request background color report: */
128 #  define RBG_GET	1	/* send T_RBG when switched to RAW mode */
129 #  define RBG_SENT	2	/* did send T_RBG, waiting for answer */
130 #  define RBG_GOT	3	/* received T_RBG response */
131 static int rbg_status = RBG_GET;
132 # endif
133 
134 /*
135  * Don't declare these variables if termcap.h contains them.
136  * Autoconf checks if these variables should be declared extern (not all
137  * systems have them).
138  * Some versions define ospeed to be speed_t, but that is incompatible with
139  * BSD, where ospeed is short and speed_t is long.
140  */
141 # ifndef HAVE_OSPEED
142 #  ifdef OSPEED_EXTERN
143 extern short ospeed;
144 #   else
145 short ospeed;
146 #   endif
147 # endif
148 # ifndef HAVE_UP_BC_PC
149 #  ifdef UP_BC_PC_EXTERN
150 extern char *UP, *BC, PC;
151 #  else
152 char *UP, *BC, PC;
153 #  endif
154 # endif
155 
156 # define TGETSTR(s, p)	vim_tgetstr((s), (p))
157 # define TGETENT(b, t)	tgetent((char *)(b), (char *)(t))
158 static char_u *vim_tgetstr(char *s, char_u **pp);
159 #endif /* HAVE_TGETENT */
160 
161 static int  detected_8bit = FALSE;	/* detected 8-bit terminal */
162 
163 static struct builtin_term builtin_termcaps[] =
164 {
165 
166 #if defined(FEAT_GUI)
167 /*
168  * GUI pseudo term-cap.
169  */
170     {(int)KS_NAME,	"gui"},
171     {(int)KS_CE,	IF_EB("\033|$", ESC_STR "|$")},
172     {(int)KS_AL,	IF_EB("\033|i", ESC_STR "|i")},
173 # ifdef TERMINFO
174     {(int)KS_CAL,	IF_EB("\033|%p1%dI", ESC_STR "|%p1%dI")},
175 # else
176     {(int)KS_CAL,	IF_EB("\033|%dI", ESC_STR "|%dI")},
177 # endif
178     {(int)KS_DL,	IF_EB("\033|d", ESC_STR "|d")},
179 # ifdef TERMINFO
180     {(int)KS_CDL,	IF_EB("\033|%p1%dD", ESC_STR "|%p1%dD")},
181     {(int)KS_CS,	IF_EB("\033|%p1%d;%p2%dR", ESC_STR "|%p1%d;%p2%dR")},
182 #  ifdef FEAT_WINDOWS
183     {(int)KS_CSV,	IF_EB("\033|%p1%d;%p2%dV", ESC_STR "|%p1%d;%p2%dV")},
184 #  endif
185 # else
186     {(int)KS_CDL,	IF_EB("\033|%dD", ESC_STR "|%dD")},
187     {(int)KS_CS,	IF_EB("\033|%d;%dR", ESC_STR "|%d;%dR")},
188 #  ifdef FEAT_WINDOWS
189     {(int)KS_CSV,	IF_EB("\033|%d;%dV", ESC_STR "|%d;%dV")},
190 #  endif
191 # endif
192     {(int)KS_CL,	IF_EB("\033|C", ESC_STR "|C")},
193 			/* attributes switched on with 'h', off with * 'H' */
194     {(int)KS_ME,	IF_EB("\033|31H", ESC_STR "|31H")}, /* HL_ALL */
195     {(int)KS_MR,	IF_EB("\033|1h", ESC_STR "|1h")},   /* HL_INVERSE */
196     {(int)KS_MD,	IF_EB("\033|2h", ESC_STR "|2h")},   /* HL_BOLD */
197     {(int)KS_SE,	IF_EB("\033|16H", ESC_STR "|16H")}, /* HL_STANDOUT */
198     {(int)KS_SO,	IF_EB("\033|16h", ESC_STR "|16h")}, /* HL_STANDOUT */
199     {(int)KS_UE,	IF_EB("\033|8H", ESC_STR "|8H")},   /* HL_UNDERLINE */
200     {(int)KS_US,	IF_EB("\033|8h", ESC_STR "|8h")},   /* HL_UNDERLINE */
201     {(int)KS_UCE,	IF_EB("\033|8C", ESC_STR "|8C")},   /* HL_UNDERCURL */
202     {(int)KS_UCS,	IF_EB("\033|8c", ESC_STR "|8c")},   /* HL_UNDERCURL */
203     {(int)KS_CZR,	IF_EB("\033|4H", ESC_STR "|4H")},   /* HL_ITALIC */
204     {(int)KS_CZH,	IF_EB("\033|4h", ESC_STR "|4h")},   /* HL_ITALIC */
205     {(int)KS_VB,	IF_EB("\033|f", ESC_STR "|f")},
206     {(int)KS_MS,	"y"},
207     {(int)KS_UT,	"y"},
208     {(int)KS_XN,	"y"},
209     {(int)KS_LE,	"\b"},		/* cursor-left = BS */
210     {(int)KS_ND,	"\014"},	/* cursor-right = CTRL-L */
211 # ifdef TERMINFO
212     {(int)KS_CM,	IF_EB("\033|%p1%d;%p2%dM", ESC_STR "|%p1%d;%p2%dM")},
213 # else
214     {(int)KS_CM,	IF_EB("\033|%d;%dM", ESC_STR "|%d;%dM")},
215 # endif
216 	/* there are no key sequences here, the GUI sequences are recognized
217 	 * in check_termcode() */
218 #endif
219 
220 #ifndef NO_BUILTIN_TCAPS
221 
222 # if defined(AMIGA) || defined(ALL_BUILTIN_TCAPS)
223 /*
224  * Amiga console window, default for Amiga
225  */
226     {(int)KS_NAME,	"amiga"},
227     {(int)KS_CE,	"\033[K"},
228     {(int)KS_CD,	"\033[J"},
229     {(int)KS_AL,	"\033[L"},
230 #  ifdef TERMINFO
231     {(int)KS_CAL,	"\033[%p1%dL"},
232 #  else
233     {(int)KS_CAL,	"\033[%dL"},
234 #  endif
235     {(int)KS_DL,	"\033[M"},
236 #  ifdef TERMINFO
237     {(int)KS_CDL,	"\033[%p1%dM"},
238 #  else
239     {(int)KS_CDL,	"\033[%dM"},
240 #  endif
241     {(int)KS_CL,	"\014"},
242     {(int)KS_VI,	"\033[0 p"},
243     {(int)KS_VE,	"\033[1 p"},
244     {(int)KS_ME,	"\033[0m"},
245     {(int)KS_MR,	"\033[7m"},
246     {(int)KS_MD,	"\033[1m"},
247     {(int)KS_SE,	"\033[0m"},
248     {(int)KS_SO,	"\033[33m"},
249     {(int)KS_US,	"\033[4m"},
250     {(int)KS_UE,	"\033[0m"},
251     {(int)KS_CZH,	"\033[3m"},
252     {(int)KS_CZR,	"\033[0m"},
253 #if defined(__MORPHOS__) || defined(__AROS__)
254     {(int)KS_CCO,	"8"},		/* allow 8 colors */
255 #  ifdef TERMINFO
256     {(int)KS_CAB,	"\033[4%p1%dm"},/* set background color */
257     {(int)KS_CAF,	"\033[3%p1%dm"},/* set foreground color */
258 #  else
259     {(int)KS_CAB,	"\033[4%dm"},	/* set background color */
260     {(int)KS_CAF,	"\033[3%dm"},	/* set foreground color */
261 #  endif
262     {(int)KS_OP,	"\033[m"},	/* reset colors */
263 #endif
264     {(int)KS_MS,	"y"},
265     {(int)KS_UT,	"y"},		/* guessed */
266     {(int)KS_LE,	"\b"},
267 #  ifdef TERMINFO
268     {(int)KS_CM,	"\033[%i%p1%d;%p2%dH"},
269 #  else
270     {(int)KS_CM,	"\033[%i%d;%dH"},
271 #  endif
272 #if defined(__MORPHOS__)
273     {(int)KS_SR,	"\033M"},
274 #endif
275 #  ifdef TERMINFO
276     {(int)KS_CRI,	"\033[%p1%dC"},
277 #  else
278     {(int)KS_CRI,	"\033[%dC"},
279 #  endif
280     {K_UP,		"\233A"},
281     {K_DOWN,		"\233B"},
282     {K_LEFT,		"\233D"},
283     {K_RIGHT,		"\233C"},
284     {K_S_UP,		"\233T"},
285     {K_S_DOWN,		"\233S"},
286     {K_S_LEFT,		"\233 A"},
287     {K_S_RIGHT,		"\233 @"},
288     {K_S_TAB,		"\233Z"},
289     {K_F1,		"\233\060~"},/* some compilers don't dig "\2330" */
290     {K_F2,		"\233\061~"},
291     {K_F3,		"\233\062~"},
292     {K_F4,		"\233\063~"},
293     {K_F5,		"\233\064~"},
294     {K_F6,		"\233\065~"},
295     {K_F7,		"\233\066~"},
296     {K_F8,		"\233\067~"},
297     {K_F9,		"\233\070~"},
298     {K_F10,		"\233\071~"},
299     {K_S_F1,		"\233\061\060~"},
300     {K_S_F2,		"\233\061\061~"},
301     {K_S_F3,		"\233\061\062~"},
302     {K_S_F4,		"\233\061\063~"},
303     {K_S_F5,		"\233\061\064~"},
304     {K_S_F6,		"\233\061\065~"},
305     {K_S_F7,		"\233\061\066~"},
306     {K_S_F8,		"\233\061\067~"},
307     {K_S_F9,		"\233\061\070~"},
308     {K_S_F10,		"\233\061\071~"},
309     {K_HELP,		"\233?~"},
310     {K_INS,		"\233\064\060~"},	/* 101 key keyboard */
311     {K_PAGEUP,		"\233\064\061~"},	/* 101 key keyboard */
312     {K_PAGEDOWN,	"\233\064\062~"},	/* 101 key keyboard */
313     {K_HOME,		"\233\064\064~"},	/* 101 key keyboard */
314     {K_END,		"\233\064\065~"},	/* 101 key keyboard */
315 
316     {BT_EXTRA_KEYS,	""},
317     {TERMCAP2KEY('#', '2'), "\233\065\064~"},	/* shifted home key */
318     {TERMCAP2KEY('#', '3'), "\233\065\060~"},	/* shifted insert key */
319     {TERMCAP2KEY('*', '7'), "\233\065\065~"},	/* shifted end key */
320 # endif
321 
322 # if defined(__BEOS__) || defined(ALL_BUILTIN_TCAPS)
323 /*
324  * almost standard ANSI terminal, default for bebox
325  */
326     {(int)KS_NAME,	"beos-ansi"},
327     {(int)KS_CE,	"\033[K"},
328     {(int)KS_CD,	"\033[J"},
329     {(int)KS_AL,	"\033[L"},
330 #  ifdef TERMINFO
331     {(int)KS_CAL,	"\033[%p1%dL"},
332 #  else
333     {(int)KS_CAL,	"\033[%dL"},
334 #  endif
335     {(int)KS_DL,	"\033[M"},
336 #  ifdef TERMINFO
337     {(int)KS_CDL,	"\033[%p1%dM"},
338 #  else
339     {(int)KS_CDL,	"\033[%dM"},
340 #  endif
341 #ifdef BEOS_PR_OR_BETTER
342 #  ifdef TERMINFO
343     {(int)KS_CS,	"\033[%i%p1%d;%p2%dr"},
344 #  else
345     {(int)KS_CS,	"\033[%i%d;%dr"},	/* scroll region */
346 #  endif
347 #endif
348     {(int)KS_CL,	"\033[H\033[2J"},
349 #ifdef notyet
350     {(int)KS_VI,	"[VI]"}, /* cursor invisible, VT320: CSI ? 25 l */
351     {(int)KS_VE,	"[VE]"}, /* cursor visible, VT320: CSI ? 25 h */
352 #endif
353     {(int)KS_ME,	"\033[m"},	/* normal mode */
354     {(int)KS_MR,	"\033[7m"},	/* reverse */
355     {(int)KS_MD,	"\033[1m"},	/* bold */
356     {(int)KS_SO,	"\033[31m"},	/* standout mode: red */
357     {(int)KS_SE,	"\033[m"},	/* standout end */
358     {(int)KS_CZH,	"\033[35m"},	/* italic: purple */
359     {(int)KS_CZR,	"\033[m"},	/* italic end */
360     {(int)KS_US,	"\033[4m"},	/* underscore mode */
361     {(int)KS_UE,	"\033[m"},	/* underscore end */
362     {(int)KS_CCO,	"8"},		/* allow 8 colors */
363 #  ifdef TERMINFO
364     {(int)KS_CAB,	"\033[4%p1%dm"},/* set background color */
365     {(int)KS_CAF,	"\033[3%p1%dm"},/* set foreground color */
366 #  else
367     {(int)KS_CAB,	"\033[4%dm"},	/* set background color */
368     {(int)KS_CAF,	"\033[3%dm"},	/* set foreground color */
369 #  endif
370     {(int)KS_OP,	"\033[m"},	/* reset colors */
371     {(int)KS_MS,	"y"},		/* safe to move cur in reverse mode */
372     {(int)KS_UT,	"y"},		/* guessed */
373     {(int)KS_LE,	"\b"},
374 #  ifdef TERMINFO
375     {(int)KS_CM,	"\033[%i%p1%d;%p2%dH"},
376 #  else
377     {(int)KS_CM,	"\033[%i%d;%dH"},
378 #  endif
379     {(int)KS_SR,	"\033M"},
380 #  ifdef TERMINFO
381     {(int)KS_CRI,	"\033[%p1%dC"},
382 #  else
383     {(int)KS_CRI,	"\033[%dC"},
384 #  endif
385 #if defined(BEOS_DR8)
386     {(int)KS_DB,	""},		/* hack! see screen.c */
387 #endif
388 
389     {K_UP,		"\033[A"},
390     {K_DOWN,		"\033[B"},
391     {K_LEFT,		"\033[D"},
392     {K_RIGHT,		"\033[C"},
393 # endif
394 
395 # if defined(UNIX) || defined(ALL_BUILTIN_TCAPS) || defined(SOME_BUILTIN_TCAPS) || defined(__EMX__)
396 /*
397  * standard ANSI terminal, default for unix
398  */
399     {(int)KS_NAME,	"ansi"},
400     {(int)KS_CE,	IF_EB("\033[K", ESC_STR "[K")},
401     {(int)KS_AL,	IF_EB("\033[L", ESC_STR "[L")},
402 #  ifdef TERMINFO
403     {(int)KS_CAL,	IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
404 #  else
405     {(int)KS_CAL,	IF_EB("\033[%dL", ESC_STR "[%dL")},
406 #  endif
407     {(int)KS_DL,	IF_EB("\033[M", ESC_STR "[M")},
408 #  ifdef TERMINFO
409     {(int)KS_CDL,	IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
410 #  else
411     {(int)KS_CDL,	IF_EB("\033[%dM", ESC_STR "[%dM")},
412 #  endif
413     {(int)KS_CL,	IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
414     {(int)KS_ME,	IF_EB("\033[0m", ESC_STR "[0m")},
415     {(int)KS_MR,	IF_EB("\033[7m", ESC_STR "[7m")},
416     {(int)KS_MS,	"y"},
417     {(int)KS_UT,	"y"},		/* guessed */
418     {(int)KS_LE,	"\b"},
419 #  ifdef TERMINFO
420     {(int)KS_CM,	IF_EB("\033[%i%p1%d;%p2%dH", ESC_STR "[%i%p1%d;%p2%dH")},
421 #  else
422     {(int)KS_CM,	IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
423 #  endif
424 #  ifdef TERMINFO
425     {(int)KS_CRI,	IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
426 #  else
427     {(int)KS_CRI,	IF_EB("\033[%dC", ESC_STR "[%dC")},
428 #  endif
429 # endif
430 
431 # if defined(ALL_BUILTIN_TCAPS) || defined(__EMX__)
432 /*
433  * These codes are valid when nansi.sys or equivalent has been installed.
434  * Function keys on a PC are preceded with a NUL. These are converted into
435  * K_NUL '\316' in mch_inchar(), because we cannot handle NULs in key codes.
436  * CTRL-arrow is used instead of SHIFT-arrow.
437  */
438 #ifdef __EMX__
439     {(int)KS_NAME,	"os2ansi"},
440 #else
441     {(int)KS_NAME,	"pcansi"},
442     {(int)KS_DL,	"\033[M"},
443     {(int)KS_AL,	"\033[L"},
444 #endif
445     {(int)KS_CE,	"\033[K"},
446     {(int)KS_CL,	"\033[2J"},
447     {(int)KS_ME,	"\033[0m"},
448     {(int)KS_MR,	"\033[5m"},	/* reverse: black on lightgrey */
449     {(int)KS_MD,	"\033[1m"},	/* bold: white text */
450     {(int)KS_SE,	"\033[0m"},	/* standout end */
451     {(int)KS_SO,	"\033[31m"},	/* standout: white on blue */
452     {(int)KS_CZH,	"\033[34;43m"},	/* italic mode: blue text on yellow */
453     {(int)KS_CZR,	"\033[0m"},	/* italic mode end */
454     {(int)KS_US,	"\033[36;41m"},	/* underscore mode: cyan text on red */
455     {(int)KS_UE,	"\033[0m"},	/* underscore mode end */
456     {(int)KS_CCO,	"8"},		/* allow 8 colors */
457 #  ifdef TERMINFO
458     {(int)KS_CAB,	"\033[4%p1%dm"},/* set background color */
459     {(int)KS_CAF,	"\033[3%p1%dm"},/* set foreground color */
460 #  else
461     {(int)KS_CAB,	"\033[4%dm"},	/* set background color */
462     {(int)KS_CAF,	"\033[3%dm"},	/* set foreground color */
463 #  endif
464     {(int)KS_OP,	"\033[0m"},	/* reset colors */
465     {(int)KS_MS,	"y"},
466     {(int)KS_UT,	"y"},		/* guessed */
467     {(int)KS_LE,	"\b"},
468 #  ifdef TERMINFO
469     {(int)KS_CM,	"\033[%i%p1%d;%p2%dH"},
470 #  else
471     {(int)KS_CM,	"\033[%i%d;%dH"},
472 #  endif
473 #  ifdef TERMINFO
474     {(int)KS_CRI,	"\033[%p1%dC"},
475 #  else
476     {(int)KS_CRI,	"\033[%dC"},
477 #  endif
478     {K_UP,		"\316H"},
479     {K_DOWN,		"\316P"},
480     {K_LEFT,		"\316K"},
481     {K_RIGHT,		"\316M"},
482     {K_S_LEFT,		"\316s"},
483     {K_S_RIGHT,		"\316t"},
484     {K_F1,		"\316;"},
485     {K_F2,		"\316<"},
486     {K_F3,		"\316="},
487     {K_F4,		"\316>"},
488     {K_F5,		"\316?"},
489     {K_F6,		"\316@"},
490     {K_F7,		"\316A"},
491     {K_F8,		"\316B"},
492     {K_F9,		"\316C"},
493     {K_F10,		"\316D"},
494     {K_F11,		"\316\205"},	/* guessed */
495     {K_F12,		"\316\206"},	/* guessed */
496     {K_S_F1,		"\316T"},
497     {K_S_F2,		"\316U"},
498     {K_S_F3,		"\316V"},
499     {K_S_F4,		"\316W"},
500     {K_S_F5,		"\316X"},
501     {K_S_F6,		"\316Y"},
502     {K_S_F7,		"\316Z"},
503     {K_S_F8,		"\316["},
504     {K_S_F9,		"\316\\"},
505     {K_S_F10,		"\316]"},
506     {K_S_F11,		"\316\207"},	/* guessed */
507     {K_S_F12,		"\316\210"},	/* guessed */
508     {K_INS,		"\316R"},
509     {K_DEL,		"\316S"},
510     {K_HOME,		"\316G"},
511     {K_END,		"\316O"},
512     {K_PAGEDOWN,	"\316Q"},
513     {K_PAGEUP,		"\316I"},
514 # endif
515 
516 # if defined(WIN3264) || defined(ALL_BUILTIN_TCAPS) || defined(__EMX__)
517 /*
518  * These codes are valid for the Win32 Console .  The entries that start with
519  * ESC | are translated into console calls in os_win32.c.  The function keys
520  * are also translated in os_win32.c.
521  */
522     {(int)KS_NAME,	"win32"},
523     {(int)KS_CE,	"\033|K"},	/* clear to end of line */
524     {(int)KS_AL,	"\033|L"},	/* add new blank line */
525 #  ifdef TERMINFO
526     {(int)KS_CAL,	"\033|%p1%dL"},	/* add number of new blank lines */
527 #  else
528     {(int)KS_CAL,	"\033|%dL"},	/* add number of new blank lines */
529 #  endif
530     {(int)KS_DL,	"\033|M"},	/* delete line */
531 #  ifdef TERMINFO
532     {(int)KS_CDL,	"\033|%p1%dM"},	/* delete number of lines */
533 #  else
534     {(int)KS_CDL,	"\033|%dM"},	/* delete number of lines */
535 #  endif
536     {(int)KS_CL,	"\033|J"},	/* clear screen */
537     {(int)KS_CD,	"\033|j"},	/* clear to end of display */
538     {(int)KS_VI,	"\033|v"},	/* cursor invisible */
539     {(int)KS_VE,	"\033|V"},	/* cursor visible */
540 
541     {(int)KS_ME,	"\033|0m"},	/* normal */
542     {(int)KS_MR,	"\033|112m"},	/* reverse: black on lightgray */
543     {(int)KS_MD,	"\033|15m"},	/* bold: white on black */
544 #if 1
545     {(int)KS_SO,	"\033|31m"},	/* standout: white on blue */
546     {(int)KS_SE,	"\033|0m"},	/* standout end */
547 #else
548     {(int)KS_SO,	"\033|F"},	/* standout: high intensity */
549     {(int)KS_SE,	"\033|f"},	/* standout end */
550 #endif
551     {(int)KS_CZH,	"\033|225m"},	/* italic: blue text on yellow */
552     {(int)KS_CZR,	"\033|0m"},	/* italic end */
553     {(int)KS_US,	"\033|67m"},	/* underscore: cyan text on red */
554     {(int)KS_UE,	"\033|0m"},	/* underscore end */
555     {(int)KS_CCO,	"16"},		/* allow 16 colors */
556 #  ifdef TERMINFO
557     {(int)KS_CAB,	"\033|%p1%db"},	/* set background color */
558     {(int)KS_CAF,	"\033|%p1%df"},	/* set foreground color */
559 #  else
560     {(int)KS_CAB,	"\033|%db"},	/* set background color */
561     {(int)KS_CAF,	"\033|%df"},	/* set foreground color */
562 #  endif
563 
564     {(int)KS_MS,	"y"},		/* save to move cur in reverse mode */
565     {(int)KS_UT,	"y"},
566     {(int)KS_XN,	"y"},
567     {(int)KS_LE,	"\b"},
568 #  ifdef TERMINFO
569     {(int)KS_CM,	"\033|%i%p1%d;%p2%dH"},/* cursor motion */
570 #  else
571     {(int)KS_CM,	"\033|%i%d;%dH"},/* cursor motion */
572 #  endif
573     {(int)KS_VB,	"\033|B"},	/* visual bell */
574     {(int)KS_TI,	"\033|S"},	/* put terminal in termcap mode */
575     {(int)KS_TE,	"\033|E"},	/* out of termcap mode */
576 #  ifdef TERMINFO
577     {(int)KS_CS,	"\033|%i%p1%d;%p2%dr"},/* scroll region */
578 #  else
579     {(int)KS_CS,	"\033|%i%d;%dr"},/* scroll region */
580 #  endif
581 
582     {K_UP,		"\316H"},
583     {K_DOWN,		"\316P"},
584     {K_LEFT,		"\316K"},
585     {K_RIGHT,		"\316M"},
586     {K_S_UP,		"\316\304"},
587     {K_S_DOWN,		"\316\317"},
588     {K_S_LEFT,		"\316\311"},
589     {K_C_LEFT,		"\316s"},
590     {K_S_RIGHT,		"\316\313"},
591     {K_C_RIGHT,		"\316t"},
592     {K_S_TAB,		"\316\017"},
593     {K_F1,		"\316;"},
594     {K_F2,		"\316<"},
595     {K_F3,		"\316="},
596     {K_F4,		"\316>"},
597     {K_F5,		"\316?"},
598     {K_F6,		"\316@"},
599     {K_F7,		"\316A"},
600     {K_F8,		"\316B"},
601     {K_F9,		"\316C"},
602     {K_F10,		"\316D"},
603     {K_F11,		"\316\205"},
604     {K_F12,		"\316\206"},
605     {K_S_F1,		"\316T"},
606     {K_S_F2,		"\316U"},
607     {K_S_F3,		"\316V"},
608     {K_S_F4,		"\316W"},
609     {K_S_F5,		"\316X"},
610     {K_S_F6,		"\316Y"},
611     {K_S_F7,		"\316Z"},
612     {K_S_F8,		"\316["},
613     {K_S_F9,		"\316\\"},
614     {K_S_F10,		"\316]"},
615     {K_S_F11,		"\316\207"},
616     {K_S_F12,		"\316\210"},
617     {K_INS,		"\316R"},
618     {K_DEL,		"\316S"},
619     {K_HOME,		"\316G"},
620     {K_S_HOME,		"\316\302"},
621     {K_C_HOME,		"\316w"},
622     {K_END,		"\316O"},
623     {K_S_END,		"\316\315"},
624     {K_C_END,		"\316u"},
625     {K_PAGEDOWN,	"\316Q"},
626     {K_PAGEUP,		"\316I"},
627     {K_KPLUS,		"\316N"},
628     {K_KMINUS,		"\316J"},
629     {K_KMULTIPLY,	"\316\067"},
630     {K_K0,		"\316\332"},
631     {K_K1,		"\316\336"},
632     {K_K2,		"\316\342"},
633     {K_K3,		"\316\346"},
634     {K_K4,		"\316\352"},
635     {K_K5,		"\316\356"},
636     {K_K6,		"\316\362"},
637     {K_K7,		"\316\366"},
638     {K_K8,		"\316\372"},
639     {K_K9,		"\316\376"},
640 # endif
641 
642 # if defined(VMS) || defined(ALL_BUILTIN_TCAPS)
643 /*
644  * VT320 is working as an ANSI terminal compatible DEC terminal.
645  * (it covers VT1x0, VT2x0 and VT3x0 up to VT320 on VMS as well)
646  * Note: K_F1...K_F5 are for internal use, should not be defined.
647  * TODO:- rewrite ESC[ codes to CSI
648  *      - keyboard languages (CSI ? 26 n)
649  */
650     {(int)KS_NAME,	"vt320"},
651     {(int)KS_CE,	IF_EB("\033[K", ESC_STR "[K")},
652     {(int)KS_AL,	IF_EB("\033[L", ESC_STR "[L")},
653 #  ifdef TERMINFO
654     {(int)KS_CAL,	IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
655 #  else
656     {(int)KS_CAL,	IF_EB("\033[%dL", ESC_STR "[%dL")},
657 #  endif
658     {(int)KS_DL,	IF_EB("\033[M", ESC_STR "[M")},
659 #  ifdef TERMINFO
660     {(int)KS_CDL,	IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
661 #  else
662     {(int)KS_CDL,	IF_EB("\033[%dM", ESC_STR "[%dM")},
663 #  endif
664     {(int)KS_CL,	IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
665     {(int)KS_CD,	IF_EB("\033[J", ESC_STR "[J")},
666     {(int)KS_CCO,	"8"},			/* allow 8 colors */
667     {(int)KS_ME,	IF_EB("\033[0m", ESC_STR "[0m")},
668     {(int)KS_MR,	IF_EB("\033[7m", ESC_STR "[7m")},
669     {(int)KS_MD,	IF_EB("\033[1m", ESC_STR "[1m")},  /* bold mode */
670     {(int)KS_SE,	IF_EB("\033[22m", ESC_STR "[22m")},/* normal mode */
671     {(int)KS_UE,	IF_EB("\033[24m", ESC_STR "[24m")},/* exit underscore mode */
672     {(int)KS_US,	IF_EB("\033[4m", ESC_STR "[4m")},  /* underscore mode */
673     {(int)KS_CZH,	IF_EB("\033[34;43m", ESC_STR "[34;43m")},  /* italic mode: blue text on yellow */
674     {(int)KS_CZR,	IF_EB("\033[0m", ESC_STR "[0m")},	    /* italic mode end */
675     {(int)KS_CAB,	IF_EB("\033[4%dm", ESC_STR "[4%dm")},	    /* set background color (ANSI) */
676     {(int)KS_CAF,	IF_EB("\033[3%dm", ESC_STR "[3%dm")},	    /* set foreground color (ANSI) */
677     {(int)KS_CSB,	IF_EB("\033[102;%dm", ESC_STR "[102;%dm")},	/* set screen background color */
678     {(int)KS_CSF,	IF_EB("\033[101;%dm", ESC_STR "[101;%dm")},	/* set screen foreground color */
679     {(int)KS_MS,	"y"},
680     {(int)KS_UT,	"y"},
681     {(int)KS_XN,	"y"},
682     {(int)KS_LE,	"\b"},
683 #  ifdef TERMINFO
684     {(int)KS_CM,	IF_EB("\033[%i%p1%d;%p2%dH",
685 						  ESC_STR "[%i%p1%d;%p2%dH")},
686 #  else
687     {(int)KS_CM,	IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
688 #  endif
689 #  ifdef TERMINFO
690     {(int)KS_CRI,	IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
691 #  else
692     {(int)KS_CRI,	IF_EB("\033[%dC", ESC_STR "[%dC")},
693 #  endif
694     {K_UP,		IF_EB("\033[A", ESC_STR "[A")},
695     {K_DOWN,		IF_EB("\033[B", ESC_STR "[B")},
696     {K_RIGHT,		IF_EB("\033[C", ESC_STR "[C")},
697     {K_LEFT,		IF_EB("\033[D", ESC_STR "[D")},
698     {K_F1,		IF_EB("\033[11~", ESC_STR "[11~")},
699     {K_F2,		IF_EB("\033[12~", ESC_STR "[12~")},
700     {K_F3,		IF_EB("\033[13~", ESC_STR "[13~")},
701     {K_F4,		IF_EB("\033[14~", ESC_STR "[14~")},
702     {K_F5,		IF_EB("\033[15~", ESC_STR "[15~")},
703     {K_F6,		IF_EB("\033[17~", ESC_STR "[17~")},
704     {K_F7,		IF_EB("\033[18~", ESC_STR "[18~")},
705     {K_F8,		IF_EB("\033[19~", ESC_STR "[19~")},
706     {K_F9,		IF_EB("\033[20~", ESC_STR "[20~")},
707     {K_F10,		IF_EB("\033[21~", ESC_STR "[21~")},
708     {K_F11,		IF_EB("\033[23~", ESC_STR "[23~")},
709     {K_F12,		IF_EB("\033[24~", ESC_STR "[24~")},
710     {K_F13,		IF_EB("\033[25~", ESC_STR "[25~")},
711     {K_F14,		IF_EB("\033[26~", ESC_STR "[26~")},
712     {K_F15,		IF_EB("\033[28~", ESC_STR "[28~")},	/* Help */
713     {K_F16,		IF_EB("\033[29~", ESC_STR "[29~")},	/* Select */
714     {K_F17,		IF_EB("\033[31~", ESC_STR "[31~")},
715     {K_F18,		IF_EB("\033[32~", ESC_STR "[32~")},
716     {K_F19,		IF_EB("\033[33~", ESC_STR "[33~")},
717     {K_F20,		IF_EB("\033[34~", ESC_STR "[34~")},
718     {K_INS,		IF_EB("\033[2~", ESC_STR "[2~")},
719     {K_DEL,		IF_EB("\033[3~", ESC_STR "[3~")},
720     {K_HOME,		IF_EB("\033[1~", ESC_STR "[1~")},
721     {K_END,		IF_EB("\033[4~", ESC_STR "[4~")},
722     {K_PAGEUP,		IF_EB("\033[5~", ESC_STR "[5~")},
723     {K_PAGEDOWN,	IF_EB("\033[6~", ESC_STR "[6~")},
724     {K_KPLUS,		IF_EB("\033Ok", ESC_STR "Ok")},	/* keypad plus */
725     {K_KMINUS,		IF_EB("\033Om", ESC_STR "Om")},	/* keypad minus */
726     {K_KDIVIDE,		IF_EB("\033Oo", ESC_STR "Oo")},	/* keypad / */
727     {K_KMULTIPLY,	IF_EB("\033Oj", ESC_STR "Oj")},	/* keypad * */
728     {K_KENTER,		IF_EB("\033OM", ESC_STR "OM")},	/* keypad Enter */
729     {K_BS,		"\x7f"},	/* for some reason 0177 doesn't work */
730 # endif
731 
732 # if defined(ALL_BUILTIN_TCAPS) || defined(__MINT__)
733 /*
734  * Ordinary vt52
735  */
736     {(int)KS_NAME,	"vt52"},
737     {(int)KS_CE,	IF_EB("\033K", ESC_STR "K")},
738     {(int)KS_CD,	IF_EB("\033J", ESC_STR "J")},
739 #  ifdef TERMINFO
740     {(int)KS_CM,	IF_EB("\033Y%p1%' '%+%c%p2%' '%+%c",
741 			    ESC_STR "Y%p1%' '%+%c%p2%' '%+%c")},
742 #  else
743     {(int)KS_CM,	IF_EB("\033Y%+ %+ ", ESC_STR "Y%+ %+ ")},
744 #  endif
745     {(int)KS_LE,	"\b"},
746     {(int)KS_SR,	IF_EB("\033I", ESC_STR "I")},
747     {(int)KS_AL,	IF_EB("\033L", ESC_STR "L")},
748     {(int)KS_DL,	IF_EB("\033M", ESC_STR "M")},
749     {K_UP,		IF_EB("\033A", ESC_STR "A")},
750     {K_DOWN,		IF_EB("\033B", ESC_STR "B")},
751     {K_LEFT,		IF_EB("\033D", ESC_STR "D")},
752     {K_RIGHT,		IF_EB("\033C", ESC_STR "C")},
753     {K_F1,		IF_EB("\033P", ESC_STR "P")},
754     {K_F2,		IF_EB("\033Q", ESC_STR "Q")},
755     {K_F3,		IF_EB("\033R", ESC_STR "R")},
756 #  ifdef __MINT__
757     {(int)KS_CL,	IF_EB("\033E", ESC_STR "E")},
758     {(int)KS_VE,	IF_EB("\033e", ESC_STR "e")},
759     {(int)KS_VI,	IF_EB("\033f", ESC_STR "f")},
760     {(int)KS_SO,	IF_EB("\033p", ESC_STR "p")},
761     {(int)KS_SE,	IF_EB("\033q", ESC_STR "q")},
762     {K_S_UP,		IF_EB("\033a", ESC_STR "a")},
763     {K_S_DOWN,		IF_EB("\033b", ESC_STR "b")},
764     {K_S_LEFT,		IF_EB("\033d", ESC_STR "d")},
765     {K_S_RIGHT,		IF_EB("\033c", ESC_STR "c")},
766     {K_F4,		IF_EB("\033S", ESC_STR "S")},
767     {K_F5,		IF_EB("\033T", ESC_STR "T")},
768     {K_F6,		IF_EB("\033U", ESC_STR "U")},
769     {K_F7,		IF_EB("\033V", ESC_STR "V")},
770     {K_F8,		IF_EB("\033W", ESC_STR "W")},
771     {K_F9,		IF_EB("\033X", ESC_STR "X")},
772     {K_F10,		IF_EB("\033Y", ESC_STR "Y")},
773     {K_S_F1,		IF_EB("\033p", ESC_STR "p")},
774     {K_S_F2,		IF_EB("\033q", ESC_STR "q")},
775     {K_S_F3,		IF_EB("\033r", ESC_STR "r")},
776     {K_S_F4,		IF_EB("\033s", ESC_STR "s")},
777     {K_S_F5,		IF_EB("\033t", ESC_STR "t")},
778     {K_S_F6,		IF_EB("\033u", ESC_STR "u")},
779     {K_S_F7,		IF_EB("\033v", ESC_STR "v")},
780     {K_S_F8,		IF_EB("\033w", ESC_STR "w")},
781     {K_S_F9,		IF_EB("\033x", ESC_STR "x")},
782     {K_S_F10,		IF_EB("\033y", ESC_STR "y")},
783     {K_INS,		IF_EB("\033I", ESC_STR "I")},
784     {K_HOME,		IF_EB("\033E", ESC_STR "E")},
785     {K_PAGEDOWN,	IF_EB("\033b", ESC_STR "b")},
786     {K_PAGEUP,		IF_EB("\033a", ESC_STR "a")},
787 #  else
788     {(int)KS_CL,	IF_EB("\033H\033J", ESC_STR "H" ESC_STR_nc "J")},
789     {(int)KS_MS,	"y"},
790 #  endif
791 # endif
792 
793 # if defined(UNIX) || defined(ALL_BUILTIN_TCAPS) || defined(SOME_BUILTIN_TCAPS) || defined(__EMX__)
794     {(int)KS_NAME,	"xterm"},
795     {(int)KS_CE,	IF_EB("\033[K", ESC_STR "[K")},
796     {(int)KS_AL,	IF_EB("\033[L", ESC_STR "[L")},
797 #  ifdef TERMINFO
798     {(int)KS_CAL,	IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
799 #  else
800     {(int)KS_CAL,	IF_EB("\033[%dL", ESC_STR "[%dL")},
801 #  endif
802     {(int)KS_DL,	IF_EB("\033[M", ESC_STR "[M")},
803 #  ifdef TERMINFO
804     {(int)KS_CDL,	IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
805 #  else
806     {(int)KS_CDL,	IF_EB("\033[%dM", ESC_STR "[%dM")},
807 #  endif
808 #  ifdef TERMINFO
809     {(int)KS_CS,	IF_EB("\033[%i%p1%d;%p2%dr",
810 						  ESC_STR "[%i%p1%d;%p2%dr")},
811 #  else
812     {(int)KS_CS,	IF_EB("\033[%i%d;%dr", ESC_STR "[%i%d;%dr")},
813 #  endif
814     {(int)KS_CL,	IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
815     {(int)KS_CD,	IF_EB("\033[J", ESC_STR "[J")},
816     {(int)KS_ME,	IF_EB("\033[m", ESC_STR "[m")},
817     {(int)KS_MR,	IF_EB("\033[7m", ESC_STR "[7m")},
818     {(int)KS_MD,	IF_EB("\033[1m", ESC_STR "[1m")},
819     {(int)KS_UE,	IF_EB("\033[m", ESC_STR "[m")},
820     {(int)KS_US,	IF_EB("\033[4m", ESC_STR "[4m")},
821     {(int)KS_MS,	"y"},
822     {(int)KS_UT,	"y"},
823     {(int)KS_LE,	"\b"},
824 #  ifdef TERMINFO
825     {(int)KS_CM,	IF_EB("\033[%i%p1%d;%p2%dH",
826 						  ESC_STR "[%i%p1%d;%p2%dH")},
827 #  else
828     {(int)KS_CM,	IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
829 #  endif
830     {(int)KS_SR,	IF_EB("\033M", ESC_STR "M")},
831 #  ifdef TERMINFO
832     {(int)KS_CRI,	IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
833 #  else
834     {(int)KS_CRI,	IF_EB("\033[%dC", ESC_STR "[%dC")},
835 #  endif
836     {(int)KS_KS,	IF_EB("\033[?1h\033=", ESC_STR "[?1h" ESC_STR_nc "=")},
837     {(int)KS_KE,	IF_EB("\033[?1l\033>", ESC_STR "[?1l" ESC_STR_nc ">")},
838 #  ifdef FEAT_XTERM_SAVE
839     {(int)KS_TI,	IF_EB("\0337\033[?47h", ESC_STR "7" ESC_STR_nc "[?47h")},
840     {(int)KS_TE,	IF_EB("\033[2J\033[?47l\0338",
841 				  ESC_STR "[2J" ESC_STR_nc "[?47l" ESC_STR_nc "8")},
842 #  endif
843     {(int)KS_CIS,	IF_EB("\033]1;", ESC_STR "]1;")},
844     {(int)KS_CIE,	"\007"},
845     {(int)KS_TS,	IF_EB("\033]2;", ESC_STR "]2;")},
846     {(int)KS_FS,	"\007"},
847 #  ifdef TERMINFO
848     {(int)KS_CWS,	IF_EB("\033[8;%p1%d;%p2%dt",
849 						  ESC_STR "[8;%p1%d;%p2%dt")},
850     {(int)KS_CWP,	IF_EB("\033[3;%p1%d;%p2%dt",
851 						  ESC_STR "[3;%p1%d;%p2%dt")},
852 #  else
853     {(int)KS_CWS,	IF_EB("\033[8;%d;%dt", ESC_STR "[8;%d;%dt")},
854     {(int)KS_CWP,	IF_EB("\033[3;%d;%dt", ESC_STR "[3;%d;%dt")},
855 #  endif
856     {(int)KS_CRV,	IF_EB("\033[>c", ESC_STR "[>c")},
857     {(int)KS_RBG,	IF_EB("\033]11;?\007", ESC_STR "]11;?\007")},
858     {(int)KS_U7,	IF_EB("\033[6n", ESC_STR "[6n")},
859 
860     {K_UP,		IF_EB("\033O*A", ESC_STR "O*A")},
861     {K_DOWN,		IF_EB("\033O*B", ESC_STR "O*B")},
862     {K_RIGHT,		IF_EB("\033O*C", ESC_STR "O*C")},
863     {K_LEFT,		IF_EB("\033O*D", ESC_STR "O*D")},
864     /* An extra set of cursor keys for vt100 mode */
865     {K_XUP,		IF_EB("\033[1;*A", ESC_STR "[1;*A")},
866     {K_XDOWN,		IF_EB("\033[1;*B", ESC_STR "[1;*B")},
867     {K_XRIGHT,		IF_EB("\033[1;*C", ESC_STR "[1;*C")},
868     {K_XLEFT,		IF_EB("\033[1;*D", ESC_STR "[1;*D")},
869     /* An extra set of function keys for vt100 mode */
870     {K_XF1,		IF_EB("\033O*P", ESC_STR "O*P")},
871     {K_XF2,		IF_EB("\033O*Q", ESC_STR "O*Q")},
872     {K_XF3,		IF_EB("\033O*R", ESC_STR "O*R")},
873     {K_XF4,		IF_EB("\033O*S", ESC_STR "O*S")},
874     {K_F1,		IF_EB("\033[11;*~", ESC_STR "[11;*~")},
875     {K_F2,		IF_EB("\033[12;*~", ESC_STR "[12;*~")},
876     {K_F3,		IF_EB("\033[13;*~", ESC_STR "[13;*~")},
877     {K_F4,		IF_EB("\033[14;*~", ESC_STR "[14;*~")},
878     {K_F5,		IF_EB("\033[15;*~", ESC_STR "[15;*~")},
879     {K_F6,		IF_EB("\033[17;*~", ESC_STR "[17;*~")},
880     {K_F7,		IF_EB("\033[18;*~", ESC_STR "[18;*~")},
881     {K_F8,		IF_EB("\033[19;*~", ESC_STR "[19;*~")},
882     {K_F9,		IF_EB("\033[20;*~", ESC_STR "[20;*~")},
883     {K_F10,		IF_EB("\033[21;*~", ESC_STR "[21;*~")},
884     {K_F11,		IF_EB("\033[23;*~", ESC_STR "[23;*~")},
885     {K_F12,		IF_EB("\033[24;*~", ESC_STR "[24;*~")},
886     {K_S_TAB,		IF_EB("\033[Z", ESC_STR "[Z")},
887     {K_HELP,		IF_EB("\033[28;*~", ESC_STR "[28;*~")},
888     {K_UNDO,		IF_EB("\033[26;*~", ESC_STR "[26;*~")},
889     {K_INS,		IF_EB("\033[2;*~", ESC_STR "[2;*~")},
890     {K_HOME,		IF_EB("\033[1;*H", ESC_STR "[1;*H")},
891     /* {K_S_HOME,		IF_EB("\033O2H", ESC_STR "O2H")}, */
892     /* {K_C_HOME,		IF_EB("\033O5H", ESC_STR "O5H")}, */
893     {K_KHOME,		IF_EB("\033[1;*~", ESC_STR "[1;*~")},
894     {K_XHOME,		IF_EB("\033O*H", ESC_STR "O*H")},	/* other Home */
895     {K_ZHOME,		IF_EB("\033[7;*~", ESC_STR "[7;*~")},	/* other Home */
896     {K_END,		IF_EB("\033[1;*F", ESC_STR "[1;*F")},
897     /* {K_S_END,		IF_EB("\033O2F", ESC_STR "O2F")}, */
898     /* {K_C_END,		IF_EB("\033O5F", ESC_STR "O5F")}, */
899     {K_KEND,		IF_EB("\033[4;*~", ESC_STR "[4;*~")},
900     {K_XEND,		IF_EB("\033O*F", ESC_STR "O*F")},	/* other End */
901     {K_ZEND,		IF_EB("\033[8;*~", ESC_STR "[8;*~")},
902     {K_PAGEUP,		IF_EB("\033[5;*~", ESC_STR "[5;*~")},
903     {K_PAGEDOWN,	IF_EB("\033[6;*~", ESC_STR "[6;*~")},
904     {K_KPLUS,		IF_EB("\033O*k", ESC_STR "O*k")},	/* keypad plus */
905     {K_KMINUS,		IF_EB("\033O*m", ESC_STR "O*m")},	/* keypad minus */
906     {K_KDIVIDE,		IF_EB("\033O*o", ESC_STR "O*o")},	/* keypad / */
907     {K_KMULTIPLY,	IF_EB("\033O*j", ESC_STR "O*j")},	/* keypad * */
908     {K_KENTER,		IF_EB("\033O*M", ESC_STR "O*M")},	/* keypad Enter */
909     {K_KPOINT,		IF_EB("\033O*n", ESC_STR "O*n")},	/* keypad . */
910     {K_KDEL,		IF_EB("\033[3;*~", ESC_STR "[3;*~")},	/* keypad Del */
911 
912     {BT_EXTRA_KEYS,   ""},
913     {TERMCAP2KEY('k', '0'), IF_EB("\033[10;*~", ESC_STR "[10;*~")}, /* F0 */
914     {TERMCAP2KEY('F', '3'), IF_EB("\033[25;*~", ESC_STR "[25;*~")}, /* F13 */
915     /* F14 and F15 are missing, because they send the same codes as the undo
916      * and help key, although they don't work on all keyboards. */
917     {TERMCAP2KEY('F', '6'), IF_EB("\033[29;*~", ESC_STR "[29;*~")}, /* F16 */
918     {TERMCAP2KEY('F', '7'), IF_EB("\033[31;*~", ESC_STR "[31;*~")}, /* F17 */
919     {TERMCAP2KEY('F', '8'), IF_EB("\033[32;*~", ESC_STR "[32;*~")}, /* F18 */
920     {TERMCAP2KEY('F', '9'), IF_EB("\033[33;*~", ESC_STR "[33;*~")}, /* F19 */
921     {TERMCAP2KEY('F', 'A'), IF_EB("\033[34;*~", ESC_STR "[34;*~")}, /* F20 */
922 
923     {TERMCAP2KEY('F', 'B'), IF_EB("\033[42;*~", ESC_STR "[42;*~")}, /* F21 */
924     {TERMCAP2KEY('F', 'C'), IF_EB("\033[43;*~", ESC_STR "[43;*~")}, /* F22 */
925     {TERMCAP2KEY('F', 'D'), IF_EB("\033[44;*~", ESC_STR "[44;*~")}, /* F23 */
926     {TERMCAP2KEY('F', 'E'), IF_EB("\033[45;*~", ESC_STR "[45;*~")}, /* F24 */
927     {TERMCAP2KEY('F', 'F'), IF_EB("\033[46;*~", ESC_STR "[46;*~")}, /* F25 */
928     {TERMCAP2KEY('F', 'G'), IF_EB("\033[47;*~", ESC_STR "[47;*~")}, /* F26 */
929     {TERMCAP2KEY('F', 'H'), IF_EB("\033[48;*~", ESC_STR "[48;*~")}, /* F27 */
930     {TERMCAP2KEY('F', 'I'), IF_EB("\033[49;*~", ESC_STR "[49;*~")}, /* F28 */
931     {TERMCAP2KEY('F', 'J'), IF_EB("\033[50;*~", ESC_STR "[50;*~")}, /* F29 */
932     {TERMCAP2KEY('F', 'K'), IF_EB("\033[51;*~", ESC_STR "[51;*~")}, /* F30 */
933 
934     {TERMCAP2KEY('F', 'L'), IF_EB("\033[52;*~", ESC_STR "[52;*~")}, /* F31 */
935     {TERMCAP2KEY('F', 'M'), IF_EB("\033[53;*~", ESC_STR "[53;*~")}, /* F32 */
936     {TERMCAP2KEY('F', 'N'), IF_EB("\033[54;*~", ESC_STR "[54;*~")}, /* F33 */
937     {TERMCAP2KEY('F', 'O'), IF_EB("\033[55;*~", ESC_STR "[55;*~")}, /* F34 */
938     {TERMCAP2KEY('F', 'P'), IF_EB("\033[56;*~", ESC_STR "[56;*~")}, /* F35 */
939     {TERMCAP2KEY('F', 'Q'), IF_EB("\033[57;*~", ESC_STR "[57;*~")}, /* F36 */
940     {TERMCAP2KEY('F', 'R'), IF_EB("\033[58;*~", ESC_STR "[58;*~")}, /* F37 */
941 # endif
942 
943 # if defined(UNIX) || defined(ALL_BUILTIN_TCAPS)
944 /*
945  * iris-ansi for Silicon Graphics machines.
946  */
947     {(int)KS_NAME,	"iris-ansi"},
948     {(int)KS_CE,	"\033[K"},
949     {(int)KS_CD,	"\033[J"},
950     {(int)KS_AL,	"\033[L"},
951 #  ifdef TERMINFO
952     {(int)KS_CAL,	"\033[%p1%dL"},
953 #  else
954     {(int)KS_CAL,	"\033[%dL"},
955 #  endif
956     {(int)KS_DL,	"\033[M"},
957 #  ifdef TERMINFO
958     {(int)KS_CDL,	"\033[%p1%dM"},
959 #  else
960     {(int)KS_CDL,	"\033[%dM"},
961 #  endif
962 #if 0	/* The scroll region is not working as Vim expects. */
963 #  ifdef TERMINFO
964     {(int)KS_CS,	"\033[%i%p1%d;%p2%dr"},
965 #  else
966     {(int)KS_CS,	"\033[%i%d;%dr"},
967 #  endif
968 #endif
969     {(int)KS_CL,	"\033[H\033[2J"},
970     {(int)KS_VE,	"\033[9/y\033[12/y"},	/* These aren't documented */
971     {(int)KS_VS,	"\033[10/y\033[=1h\033[=2l"}, /* These aren't documented */
972     {(int)KS_TI,	"\033[=6h"},
973     {(int)KS_TE,	"\033[=6l"},
974     {(int)KS_SE,	"\033[21;27m"},
975     {(int)KS_SO,	"\033[1;7m"},
976     {(int)KS_ME,	"\033[m"},
977     {(int)KS_MR,	"\033[7m"},
978     {(int)KS_MD,	"\033[1m"},
979     {(int)KS_CCO,	"8"},			/* allow 8 colors */
980     {(int)KS_CZH,	"\033[3m"},		/* italic mode on */
981     {(int)KS_CZR,	"\033[23m"},		/* italic mode off */
982     {(int)KS_US,	"\033[4m"},		/* underline on */
983     {(int)KS_UE,	"\033[24m"},		/* underline off */
984 #  ifdef TERMINFO
985     {(int)KS_CAB,	"\033[4%p1%dm"},    /* set background color (ANSI) */
986     {(int)KS_CAF,	"\033[3%p1%dm"},    /* set foreground color (ANSI) */
987     {(int)KS_CSB,	"\033[102;%p1%dm"}, /* set screen background color */
988     {(int)KS_CSF,	"\033[101;%p1%dm"}, /* set screen foreground color */
989 #  else
990     {(int)KS_CAB,	"\033[4%dm"},	    /* set background color (ANSI) */
991     {(int)KS_CAF,	"\033[3%dm"},	    /* set foreground color (ANSI) */
992     {(int)KS_CSB,	"\033[102;%dm"},    /* set screen background color */
993     {(int)KS_CSF,	"\033[101;%dm"},    /* set screen foreground color */
994 #  endif
995     {(int)KS_MS,	"y"},		/* guessed */
996     {(int)KS_UT,	"y"},		/* guessed */
997     {(int)KS_LE,	"\b"},
998 #  ifdef TERMINFO
999     {(int)KS_CM,	"\033[%i%p1%d;%p2%dH"},
1000 #  else
1001     {(int)KS_CM,	"\033[%i%d;%dH"},
1002 #  endif
1003     {(int)KS_SR,	"\033M"},
1004 #  ifdef TERMINFO
1005     {(int)KS_CRI,	"\033[%p1%dC"},
1006 #  else
1007     {(int)KS_CRI,	"\033[%dC"},
1008 #  endif
1009     {(int)KS_CIS,	"\033P3.y"},
1010     {(int)KS_CIE,	"\234"},    /* ST "String Terminator" */
1011     {(int)KS_TS,	"\033P1.y"},
1012     {(int)KS_FS,	"\234"},    /* ST "String Terminator" */
1013 #  ifdef TERMINFO
1014     {(int)KS_CWS,	"\033[203;%p1%d;%p2%d/y"},
1015     {(int)KS_CWP,	"\033[205;%p1%d;%p2%d/y"},
1016 #  else
1017     {(int)KS_CWS,	"\033[203;%d;%d/y"},
1018     {(int)KS_CWP,	"\033[205;%d;%d/y"},
1019 #  endif
1020     {K_UP,		"\033[A"},
1021     {K_DOWN,		"\033[B"},
1022     {K_LEFT,		"\033[D"},
1023     {K_RIGHT,		"\033[C"},
1024     {K_S_UP,		"\033[161q"},
1025     {K_S_DOWN,		"\033[164q"},
1026     {K_S_LEFT,		"\033[158q"},
1027     {K_S_RIGHT,		"\033[167q"},
1028     {K_F1,		"\033[001q"},
1029     {K_F2,		"\033[002q"},
1030     {K_F3,		"\033[003q"},
1031     {K_F4,		"\033[004q"},
1032     {K_F5,		"\033[005q"},
1033     {K_F6,		"\033[006q"},
1034     {K_F7,		"\033[007q"},
1035     {K_F8,		"\033[008q"},
1036     {K_F9,		"\033[009q"},
1037     {K_F10,		"\033[010q"},
1038     {K_F11,		"\033[011q"},
1039     {K_F12,		"\033[012q"},
1040     {K_S_F1,		"\033[013q"},
1041     {K_S_F2,		"\033[014q"},
1042     {K_S_F3,		"\033[015q"},
1043     {K_S_F4,		"\033[016q"},
1044     {K_S_F5,		"\033[017q"},
1045     {K_S_F6,		"\033[018q"},
1046     {K_S_F7,		"\033[019q"},
1047     {K_S_F8,		"\033[020q"},
1048     {K_S_F9,		"\033[021q"},
1049     {K_S_F10,		"\033[022q"},
1050     {K_S_F11,		"\033[023q"},
1051     {K_S_F12,		"\033[024q"},
1052     {K_INS,		"\033[139q"},
1053     {K_HOME,		"\033[H"},
1054     {K_END,		"\033[146q"},
1055     {K_PAGEUP,		"\033[150q"},
1056     {K_PAGEDOWN,	"\033[154q"},
1057 # endif
1058 
1059 # if defined(DEBUG) || defined(ALL_BUILTIN_TCAPS)
1060 /*
1061  * for debugging
1062  */
1063     {(int)KS_NAME,	"debug"},
1064     {(int)KS_CE,	"[CE]"},
1065     {(int)KS_CD,	"[CD]"},
1066     {(int)KS_AL,	"[AL]"},
1067 #  ifdef TERMINFO
1068     {(int)KS_CAL,	"[CAL%p1%d]"},
1069 #  else
1070     {(int)KS_CAL,	"[CAL%d]"},
1071 #  endif
1072     {(int)KS_DL,	"[DL]"},
1073 #  ifdef TERMINFO
1074     {(int)KS_CDL,	"[CDL%p1%d]"},
1075 #  else
1076     {(int)KS_CDL,	"[CDL%d]"},
1077 #  endif
1078 #  ifdef TERMINFO
1079     {(int)KS_CS,	"[%p1%dCS%p2%d]"},
1080 #  else
1081     {(int)KS_CS,	"[%dCS%d]"},
1082 #  endif
1083 #  ifdef FEAT_WINDOWS
1084 #   ifdef TERMINFO
1085     {(int)KS_CSV,	"[%p1%dCSV%p2%d]"},
1086 #   else
1087     {(int)KS_CSV,	"[%dCSV%d]"},
1088 #   endif
1089 #  endif
1090 #  ifdef TERMINFO
1091     {(int)KS_CAB,	"[CAB%p1%d]"},
1092     {(int)KS_CAF,	"[CAF%p1%d]"},
1093     {(int)KS_CSB,	"[CSB%p1%d]"},
1094     {(int)KS_CSF,	"[CSF%p1%d]"},
1095 #  else
1096     {(int)KS_CAB,	"[CAB%d]"},
1097     {(int)KS_CAF,	"[CAF%d]"},
1098     {(int)KS_CSB,	"[CSB%d]"},
1099     {(int)KS_CSF,	"[CSF%d]"},
1100 #  endif
1101     {(int)KS_OP,	"[OP]"},
1102     {(int)KS_LE,	"[LE]"},
1103     {(int)KS_CL,	"[CL]"},
1104     {(int)KS_VI,	"[VI]"},
1105     {(int)KS_VE,	"[VE]"},
1106     {(int)KS_VS,	"[VS]"},
1107     {(int)KS_ME,	"[ME]"},
1108     {(int)KS_MR,	"[MR]"},
1109     {(int)KS_MB,	"[MB]"},
1110     {(int)KS_MD,	"[MD]"},
1111     {(int)KS_SE,	"[SE]"},
1112     {(int)KS_SO,	"[SO]"},
1113     {(int)KS_UE,	"[UE]"},
1114     {(int)KS_US,	"[US]"},
1115     {(int)KS_UCE,	"[UCE]"},
1116     {(int)KS_UCS,	"[UCS]"},
1117     {(int)KS_MS,	"[MS]"},
1118     {(int)KS_UT,	"[UT]"},
1119     {(int)KS_XN,	"[XN]"},
1120 #  ifdef TERMINFO
1121     {(int)KS_CM,	"[%p1%dCM%p2%d]"},
1122 #  else
1123     {(int)KS_CM,	"[%dCM%d]"},
1124 #  endif
1125     {(int)KS_SR,	"[SR]"},
1126 #  ifdef TERMINFO
1127     {(int)KS_CRI,	"[CRI%p1%d]"},
1128 #  else
1129     {(int)KS_CRI,	"[CRI%d]"},
1130 #  endif
1131     {(int)KS_VB,	"[VB]"},
1132     {(int)KS_KS,	"[KS]"},
1133     {(int)KS_KE,	"[KE]"},
1134     {(int)KS_TI,	"[TI]"},
1135     {(int)KS_TE,	"[TE]"},
1136     {(int)KS_CIS,	"[CIS]"},
1137     {(int)KS_CIE,	"[CIE]"},
1138     {(int)KS_TS,	"[TS]"},
1139     {(int)KS_FS,	"[FS]"},
1140 #  ifdef TERMINFO
1141     {(int)KS_CWS,	"[%p1%dCWS%p2%d]"},
1142     {(int)KS_CWP,	"[%p1%dCWP%p2%d]"},
1143 #  else
1144     {(int)KS_CWS,	"[%dCWS%d]"},
1145     {(int)KS_CWP,	"[%dCWP%d]"},
1146 #  endif
1147     {(int)KS_CRV,	"[CRV]"},
1148     {(int)KS_U7,	"[U7]"},
1149     {(int)KS_RBG,	"[RBG]"},
1150     {K_UP,		"[KU]"},
1151     {K_DOWN,		"[KD]"},
1152     {K_LEFT,		"[KL]"},
1153     {K_RIGHT,		"[KR]"},
1154     {K_XUP,		"[xKU]"},
1155     {K_XDOWN,		"[xKD]"},
1156     {K_XLEFT,		"[xKL]"},
1157     {K_XRIGHT,		"[xKR]"},
1158     {K_S_UP,		"[S-KU]"},
1159     {K_S_DOWN,		"[S-KD]"},
1160     {K_S_LEFT,		"[S-KL]"},
1161     {K_C_LEFT,		"[C-KL]"},
1162     {K_S_RIGHT,		"[S-KR]"},
1163     {K_C_RIGHT,		"[C-KR]"},
1164     {K_F1,		"[F1]"},
1165     {K_XF1,		"[xF1]"},
1166     {K_F2,		"[F2]"},
1167     {K_XF2,		"[xF2]"},
1168     {K_F3,		"[F3]"},
1169     {K_XF3,		"[xF3]"},
1170     {K_F4,		"[F4]"},
1171     {K_XF4,		"[xF4]"},
1172     {K_F5,		"[F5]"},
1173     {K_F6,		"[F6]"},
1174     {K_F7,		"[F7]"},
1175     {K_F8,		"[F8]"},
1176     {K_F9,		"[F9]"},
1177     {K_F10,		"[F10]"},
1178     {K_F11,		"[F11]"},
1179     {K_F12,		"[F12]"},
1180     {K_S_F1,		"[S-F1]"},
1181     {K_S_XF1,		"[S-xF1]"},
1182     {K_S_F2,		"[S-F2]"},
1183     {K_S_XF2,		"[S-xF2]"},
1184     {K_S_F3,		"[S-F3]"},
1185     {K_S_XF3,		"[S-xF3]"},
1186     {K_S_F4,		"[S-F4]"},
1187     {K_S_XF4,		"[S-xF4]"},
1188     {K_S_F5,		"[S-F5]"},
1189     {K_S_F6,		"[S-F6]"},
1190     {K_S_F7,		"[S-F7]"},
1191     {K_S_F8,		"[S-F8]"},
1192     {K_S_F9,		"[S-F9]"},
1193     {K_S_F10,		"[S-F10]"},
1194     {K_S_F11,		"[S-F11]"},
1195     {K_S_F12,		"[S-F12]"},
1196     {K_HELP,		"[HELP]"},
1197     {K_UNDO,		"[UNDO]"},
1198     {K_BS,		"[BS]"},
1199     {K_INS,		"[INS]"},
1200     {K_KINS,		"[KINS]"},
1201     {K_DEL,		"[DEL]"},
1202     {K_KDEL,		"[KDEL]"},
1203     {K_HOME,		"[HOME]"},
1204     {K_S_HOME,		"[C-HOME]"},
1205     {K_C_HOME,		"[C-HOME]"},
1206     {K_KHOME,		"[KHOME]"},
1207     {K_XHOME,		"[XHOME]"},
1208     {K_ZHOME,		"[ZHOME]"},
1209     {K_END,		"[END]"},
1210     {K_S_END,		"[C-END]"},
1211     {K_C_END,		"[C-END]"},
1212     {K_KEND,		"[KEND]"},
1213     {K_XEND,		"[XEND]"},
1214     {K_ZEND,		"[ZEND]"},
1215     {K_PAGEUP,		"[PAGEUP]"},
1216     {K_PAGEDOWN,	"[PAGEDOWN]"},
1217     {K_KPAGEUP,		"[KPAGEUP]"},
1218     {K_KPAGEDOWN,	"[KPAGEDOWN]"},
1219     {K_MOUSE,		"[MOUSE]"},
1220     {K_KPLUS,		"[KPLUS]"},
1221     {K_KMINUS,		"[KMINUS]"},
1222     {K_KDIVIDE,		"[KDIVIDE]"},
1223     {K_KMULTIPLY,	"[KMULTIPLY]"},
1224     {K_KENTER,		"[KENTER]"},
1225     {K_KPOINT,		"[KPOINT]"},
1226     {K_K0,		"[K0]"},
1227     {K_K1,		"[K1]"},
1228     {K_K2,		"[K2]"},
1229     {K_K3,		"[K3]"},
1230     {K_K4,		"[K4]"},
1231     {K_K5,		"[K5]"},
1232     {K_K6,		"[K6]"},
1233     {K_K7,		"[K7]"},
1234     {K_K8,		"[K8]"},
1235     {K_K9,		"[K9]"},
1236 # endif
1237 
1238 #endif /* NO_BUILTIN_TCAPS */
1239 
1240 /*
1241  * The most minimal terminal: only clear screen and cursor positioning
1242  * Always included.
1243  */
1244     {(int)KS_NAME,	"dumb"},
1245     {(int)KS_CL,	"\014"},
1246 #ifdef TERMINFO
1247     {(int)KS_CM,	IF_EB("\033[%i%p1%d;%p2%dH",
1248 						  ESC_STR "[%i%p1%d;%p2%dH")},
1249 #else
1250     {(int)KS_CM,	IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
1251 #endif
1252 
1253 /*
1254  * end marker
1255  */
1256     {(int)KS_NAME,	NULL}
1257 
1258 };	/* end of builtin_termcaps */
1259 
1260 /*
1261  * DEFAULT_TERM is used, when no terminal is specified with -T option or $TERM.
1262  */
1263 #ifdef AMIGA
1264 # define DEFAULT_TERM	(char_u *)"amiga"
1265 #endif
1266 
1267 #ifdef MSWIN
1268 # define DEFAULT_TERM	(char_u *)"win32"
1269 #endif
1270 
1271 #if defined(UNIX) && !defined(__MINT__)
1272 # define DEFAULT_TERM	(char_u *)"ansi"
1273 #endif
1274 
1275 #ifdef __MINT__
1276 # define DEFAULT_TERM	(char_u *)"vt52"
1277 #endif
1278 
1279 #ifdef __EMX__
1280 # define DEFAULT_TERM	(char_u *)"os2ansi"
1281 #endif
1282 
1283 #ifdef VMS
1284 # define DEFAULT_TERM	(char_u *)"vt320"
1285 #endif
1286 
1287 #ifdef __BEOS__
1288 # undef DEFAULT_TERM
1289 # define DEFAULT_TERM	(char_u *)"beos-ansi"
1290 #endif
1291 
1292 #ifndef DEFAULT_TERM
1293 # define DEFAULT_TERM	(char_u *)"dumb"
1294 #endif
1295 
1296 /*
1297  * Term_strings contains currently used terminal output strings.
1298  * It is initialized with the default values by parse_builtin_tcap().
1299  * The values can be changed by setting the option with the same name.
1300  */
1301 char_u *(term_strings[(int)KS_LAST + 1]);
1302 
1303 static int	need_gather = FALSE;	    /* need to fill termleader[] */
1304 static char_u	termleader[256 + 1];	    /* for check_termcode() */
1305 #ifdef FEAT_TERMRESPONSE
1306 static int	check_for_codes = FALSE;    /* check for key code response */
1307 #endif
1308 
1309     static struct builtin_term *
1310 find_builtin_term(char_u *term)
1311 {
1312     struct builtin_term *p;
1313 
1314     p = builtin_termcaps;
1315     while (p->bt_string != NULL)
1316     {
1317 	if (p->bt_entry == (int)KS_NAME)
1318 	{
1319 #ifdef UNIX
1320 	    if (STRCMP(p->bt_string, "iris-ansi") == 0 && vim_is_iris(term))
1321 		return p;
1322 	    else if (STRCMP(p->bt_string, "xterm") == 0 && vim_is_xterm(term))
1323 		return p;
1324 	    else
1325 #endif
1326 #ifdef VMS
1327 		if (STRCMP(p->bt_string, "vt320") == 0 && vim_is_vt300(term))
1328 		    return p;
1329 		else
1330 #endif
1331 		  if (STRCMP(term, p->bt_string) == 0)
1332 		    return p;
1333 	}
1334 	++p;
1335     }
1336     return p;
1337 }
1338 
1339 /*
1340  * Parsing of the builtin termcap entries.
1341  * Caller should check if 'name' is a valid builtin term.
1342  * The terminal's name is not set, as this is already done in termcapinit().
1343  */
1344     static void
1345 parse_builtin_tcap(char_u *term)
1346 {
1347     struct builtin_term	    *p;
1348     char_u		    name[2];
1349     int			    term_8bit;
1350 
1351     p = find_builtin_term(term);
1352     term_8bit = term_is_8bit(term);
1353 
1354     /* Do not parse if builtin term not found */
1355     if (p->bt_string == NULL)
1356 	return;
1357 
1358     for (++p; p->bt_entry != (int)KS_NAME && p->bt_entry != BT_EXTRA_KEYS; ++p)
1359     {
1360 	if ((int)p->bt_entry >= 0)	/* KS_xx entry */
1361 	{
1362 	    /* Only set the value if it wasn't set yet. */
1363 	    if (term_strings[p->bt_entry] == NULL
1364 				 || term_strings[p->bt_entry] == empty_option)
1365 	    {
1366 		/* 8bit terminal: use CSI instead of <Esc>[ */
1367 		if (term_8bit && term_7to8bit((char_u *)p->bt_string) != 0)
1368 		{
1369 		    char_u  *s, *t;
1370 
1371 		    s = vim_strsave((char_u *)p->bt_string);
1372 		    if (s != NULL)
1373 		    {
1374 			for (t = s; *t; ++t)
1375 			    if (term_7to8bit(t))
1376 			    {
1377 				*t = term_7to8bit(t);
1378 				STRCPY(t + 1, t + 2);
1379 			    }
1380 			term_strings[p->bt_entry] = s;
1381 			set_term_option_alloced(&term_strings[p->bt_entry]);
1382 		    }
1383 		}
1384 		else
1385 		    term_strings[p->bt_entry] = (char_u *)p->bt_string;
1386 	    }
1387 	}
1388 	else
1389 	{
1390 	    name[0] = KEY2TERMCAP0((int)p->bt_entry);
1391 	    name[1] = KEY2TERMCAP1((int)p->bt_entry);
1392 	    if (find_termcode(name) == NULL)
1393 		add_termcode(name, (char_u *)p->bt_string, term_8bit);
1394 	}
1395     }
1396 }
1397 #if defined(HAVE_TGETENT) || defined(FEAT_TERMRESPONSE)
1398 static void set_color_count(int nr);
1399 
1400 /*
1401  * Set number of colors.
1402  * Store it as a number in t_colors.
1403  * Store it as a string in T_CCO (using nr_colors[]).
1404  */
1405     static void
1406 set_color_count(int nr)
1407 {
1408     char_u	nr_colors[20];		/* string for number of colors */
1409 
1410     t_colors = nr;
1411     if (t_colors > 1)
1412 	sprintf((char *)nr_colors, "%d", t_colors);
1413     else
1414 	*nr_colors = NUL;
1415     set_string_option_direct((char_u *)"t_Co", -1, nr_colors, OPT_FREE, 0);
1416 }
1417 #endif
1418 
1419 #ifdef HAVE_TGETENT
1420 static char *(key_names[]) =
1421 {
1422 #ifdef FEAT_TERMRESPONSE
1423     /* Do this one first, it may cause a screen redraw. */
1424     "Co",
1425 #endif
1426     "ku", "kd", "kr", "kl",
1427     "#2", "#4", "%i", "*7",
1428     "k1", "k2", "k3", "k4", "k5", "k6",
1429     "k7", "k8", "k9", "k;", "F1", "F2",
1430     "%1", "&8", "kb", "kI", "kD", "kh",
1431     "@7", "kP", "kN", "K1", "K3", "K4", "K5", "kB",
1432     NULL
1433 };
1434 #endif
1435 
1436 /*
1437  * Set terminal options for terminal "term".
1438  * Return OK if terminal 'term' was found in a termcap, FAIL otherwise.
1439  *
1440  * While doing this, until ttest(), some options may be NULL, be careful.
1441  */
1442     int
1443 set_termname(char_u *term)
1444 {
1445     struct builtin_term *termp;
1446 #ifdef HAVE_TGETENT
1447     int		builtin_first = p_tbi;
1448     int		try;
1449     int		termcap_cleared = FALSE;
1450 #endif
1451     int		width = 0, height = 0;
1452     char_u	*error_msg = NULL;
1453     char_u	*bs_p, *del_p;
1454 
1455     /* In silect mode (ex -s) we don't use the 'term' option. */
1456     if (silent_mode)
1457 	return OK;
1458 
1459     detected_8bit = FALSE;		/* reset 8-bit detection */
1460 
1461     if (term_is_builtin(term))
1462     {
1463 	term += 8;
1464 #ifdef HAVE_TGETENT
1465 	builtin_first = 1;
1466 #endif
1467     }
1468 
1469 /*
1470  * If HAVE_TGETENT is not defined, only the builtin termcap is used, otherwise:
1471  *   If builtin_first is TRUE:
1472  *     0. try builtin termcap
1473  *     1. try external termcap
1474  *     2. if both fail default to a builtin terminal
1475  *   If builtin_first is FALSE:
1476  *     1. try external termcap
1477  *     2. try builtin termcap, if both fail default to a builtin terminal
1478  */
1479 #ifdef HAVE_TGETENT
1480     for (try = builtin_first ? 0 : 1; try < 3; ++try)
1481     {
1482 	/*
1483 	 * Use external termcap
1484 	 */
1485 	if (try == 1)
1486 	{
1487 	    char_u	    *p;
1488 	    static char_u   tstrbuf[TBUFSZ];
1489 	    int		    i;
1490 	    char_u	    tbuf[TBUFSZ];
1491 	    char_u	    *tp;
1492 	    static struct {
1493 			    enum SpecialKey dest; /* index in term_strings[] */
1494 			    char *name;		  /* termcap name for string */
1495 			  } string_names[] =
1496 			    {	{KS_CE, "ce"}, {KS_AL, "al"}, {KS_CAL,"AL"},
1497 				{KS_DL, "dl"}, {KS_CDL,"DL"}, {KS_CS, "cs"},
1498 				{KS_CL, "cl"}, {KS_CD, "cd"},
1499 				{KS_VI, "vi"}, {KS_VE, "ve"}, {KS_MB, "mb"},
1500 				{KS_VS, "vs"}, {KS_ME, "me"}, {KS_MR, "mr"},
1501 				{KS_MD, "md"}, {KS_SE, "se"}, {KS_SO, "so"},
1502 				{KS_CZH,"ZH"}, {KS_CZR,"ZR"}, {KS_UE, "ue"},
1503 				{KS_US, "us"}, {KS_UCE, "Ce"}, {KS_UCS, "Cs"},
1504 				{KS_CM, "cm"}, {KS_SR, "sr"},
1505 				{KS_CRI,"RI"}, {KS_VB, "vb"}, {KS_KS, "ks"},
1506 				{KS_KE, "ke"}, {KS_TI, "ti"}, {KS_TE, "te"},
1507 				{KS_BC, "bc"}, {KS_CSB,"Sb"}, {KS_CSF,"Sf"},
1508 				{KS_CAB,"AB"}, {KS_CAF,"AF"}, {KS_LE, "le"},
1509 				{KS_ND, "nd"}, {KS_OP, "op"}, {KS_CRV, "RV"},
1510 				{KS_CIS, "IS"}, {KS_CIE, "IE"},
1511 				{KS_TS, "ts"}, {KS_FS, "fs"},
1512 				{KS_CWP, "WP"}, {KS_CWS, "WS"},
1513 				{KS_CSI, "SI"}, {KS_CEI, "EI"},
1514 				{KS_U7, "u7"}, {KS_RBG, "RB"},
1515 				{(enum SpecialKey)0, NULL}
1516 			    };
1517 
1518 	    /*
1519 	     * If the external termcap does not have a matching entry, try the
1520 	     * builtin ones.
1521 	     */
1522 	    if ((error_msg = tgetent_error(tbuf, term)) == NULL)
1523 	    {
1524 		tp = tstrbuf;
1525 		if (!termcap_cleared)
1526 		{
1527 		    clear_termoptions();	/* clear old options */
1528 		    termcap_cleared = TRUE;
1529 		}
1530 
1531 	    /* get output strings */
1532 		for (i = 0; string_names[i].name != NULL; ++i)
1533 		{
1534 		    if (term_str(string_names[i].dest) == NULL
1535 			    || term_str(string_names[i].dest) == empty_option)
1536 			term_str(string_names[i].dest) =
1537 					   TGETSTR(string_names[i].name, &tp);
1538 		}
1539 
1540 		/* tgetflag() returns 1 if the flag is present, 0 if not and
1541 		 * possibly -1 if the flag doesn't exist. */
1542 		if ((T_MS == NULL || T_MS == empty_option)
1543 							&& tgetflag("ms") > 0)
1544 		    T_MS = (char_u *)"y";
1545 		if ((T_XS == NULL || T_XS == empty_option)
1546 							&& tgetflag("xs") > 0)
1547 		    T_XS = (char_u *)"y";
1548 		if ((T_XN == NULL || T_XN == empty_option)
1549 							&& tgetflag("xn") > 0)
1550 		    T_XN = (char_u *)"y";
1551 		if ((T_DB == NULL || T_DB == empty_option)
1552 							&& tgetflag("db") > 0)
1553 		    T_DB = (char_u *)"y";
1554 		if ((T_DA == NULL || T_DA == empty_option)
1555 							&& tgetflag("da") > 0)
1556 		    T_DA = (char_u *)"y";
1557 		if ((T_UT == NULL || T_UT == empty_option)
1558 							&& tgetflag("ut") > 0)
1559 		    T_UT = (char_u *)"y";
1560 
1561 
1562 		/*
1563 		 * get key codes
1564 		 */
1565 		for (i = 0; key_names[i] != NULL; ++i)
1566 		{
1567 		    if (find_termcode((char_u *)key_names[i]) == NULL)
1568 		    {
1569 			p = TGETSTR(key_names[i], &tp);
1570 			/* if cursor-left == backspace, ignore it (televideo
1571 			 * 925) */
1572 			if (p != NULL
1573 				&& (*p != Ctrl_H
1574 				    || key_names[i][0] != 'k'
1575 				    || key_names[i][1] != 'l'))
1576 			    add_termcode((char_u *)key_names[i], p, FALSE);
1577 		    }
1578 		}
1579 
1580 		if (height == 0)
1581 		    height = tgetnum("li");
1582 		if (width == 0)
1583 		    width = tgetnum("co");
1584 
1585 		/*
1586 		 * Get number of colors (if not done already).
1587 		 */
1588 		if (term_str(KS_CCO) == NULL
1589 			|| term_str(KS_CCO) == empty_option)
1590 		    set_color_count(tgetnum("Co"));
1591 
1592 # ifndef hpux
1593 		BC = (char *)TGETSTR("bc", &tp);
1594 		UP = (char *)TGETSTR("up", &tp);
1595 		p = TGETSTR("pc", &tp);
1596 		if (p)
1597 		    PC = *p;
1598 # endif /* hpux */
1599 	    }
1600 	}
1601 	else	    /* try == 0 || try == 2 */
1602 #endif /* HAVE_TGETENT */
1603 	/*
1604 	 * Use builtin termcap
1605 	 */
1606 	{
1607 #ifdef HAVE_TGETENT
1608 	    /*
1609 	     * If builtin termcap was already used, there is no need to search
1610 	     * for the builtin termcap again, quit now.
1611 	     */
1612 	    if (try == 2 && builtin_first && termcap_cleared)
1613 		break;
1614 #endif
1615 	    /*
1616 	     * search for 'term' in builtin_termcaps[]
1617 	     */
1618 	    termp = find_builtin_term(term);
1619 	    if (termp->bt_string == NULL)	/* did not find it */
1620 	    {
1621 #ifdef HAVE_TGETENT
1622 		/*
1623 		 * If try == 0, first try the external termcap. If that is not
1624 		 * found we'll get back here with try == 2.
1625 		 * If termcap_cleared is set we used the external termcap,
1626 		 * don't complain about not finding the term in the builtin
1627 		 * termcap.
1628 		 */
1629 		if (try == 0)			/* try external one */
1630 		    continue;
1631 		if (termcap_cleared)		/* found in external termcap */
1632 		    break;
1633 #endif
1634 
1635 		mch_errmsg("\r\n");
1636 		if (error_msg != NULL)
1637 		{
1638 		    mch_errmsg((char *)error_msg);
1639 		    mch_errmsg("\r\n");
1640 		}
1641 		mch_errmsg("'");
1642 		mch_errmsg((char *)term);
1643 		mch_errmsg(_("' not known. Available builtin terminals are:"));
1644 		mch_errmsg("\r\n");
1645 		for (termp = &(builtin_termcaps[0]); termp->bt_string != NULL;
1646 								      ++termp)
1647 		{
1648 		    if (termp->bt_entry == (int)KS_NAME)
1649 		    {
1650 #ifdef HAVE_TGETENT
1651 			mch_errmsg("    builtin_");
1652 #else
1653 			mch_errmsg("    ");
1654 #endif
1655 			mch_errmsg(termp->bt_string);
1656 			mch_errmsg("\r\n");
1657 		    }
1658 		}
1659 		/* when user typed :set term=xxx, quit here */
1660 		if (starting != NO_SCREEN)
1661 		{
1662 		    screen_start();	/* don't know where cursor is now */
1663 		    wait_return(TRUE);
1664 		    return FAIL;
1665 		}
1666 		term = DEFAULT_TERM;
1667 		mch_errmsg(_("defaulting to '"));
1668 		mch_errmsg((char *)term);
1669 		mch_errmsg("'\r\n");
1670 		if (emsg_silent == 0)
1671 		{
1672 		    screen_start();	/* don't know where cursor is now */
1673 		    out_flush();
1674 		    ui_delay(2000L, TRUE);
1675 		}
1676 		set_string_option_direct((char_u *)"term", -1, term,
1677 								 OPT_FREE, 0);
1678 		display_errors();
1679 	    }
1680 	    out_flush();
1681 #ifdef HAVE_TGETENT
1682 	    if (!termcap_cleared)
1683 	    {
1684 #endif
1685 		clear_termoptions();	    /* clear old options */
1686 #ifdef HAVE_TGETENT
1687 		termcap_cleared = TRUE;
1688 	    }
1689 #endif
1690 	    parse_builtin_tcap(term);
1691 #ifdef FEAT_GUI
1692 	    if (term_is_gui(term))
1693 	    {
1694 		out_flush();
1695 		gui_init();
1696 		/* If starting the GUI failed, don't do any of the other
1697 		 * things for this terminal */
1698 		if (!gui.in_use)
1699 		    return FAIL;
1700 #ifdef HAVE_TGETENT
1701 		break;		/* don't try using external termcap */
1702 #endif
1703 	    }
1704 #endif /* FEAT_GUI */
1705 	}
1706 #ifdef HAVE_TGETENT
1707     }
1708 #endif
1709 
1710 /*
1711  * special: There is no info in the termcap about whether the cursor
1712  * positioning is relative to the start of the screen or to the start of the
1713  * scrolling region.  We just guess here. Only msdos pcterm is known to do it
1714  * relative.
1715  */
1716     if (STRCMP(term, "pcterm") == 0)
1717 	T_CCS = (char_u *)"yes";
1718     else
1719 	T_CCS = empty_option;
1720 
1721 #ifdef UNIX
1722 /*
1723  * Any "stty" settings override the default for t_kb from the termcap.
1724  * This is in os_unix.c, because it depends a lot on the version of unix that
1725  * is being used.
1726  * Don't do this when the GUI is active, it uses "t_kb" and "t_kD" directly.
1727  */
1728 #ifdef FEAT_GUI
1729     if (!gui.in_use)
1730 #endif
1731 	get_stty();
1732 #endif
1733 
1734 /*
1735  * If the termcap has no entry for 'bs' and/or 'del' and the ioctl() also
1736  * didn't work, use the default CTRL-H
1737  * The default for t_kD is DEL, unless t_kb is DEL.
1738  * The vim_strsave'd strings are probably lost forever, well it's only two
1739  * bytes.  Don't do this when the GUI is active, it uses "t_kb" and "t_kD"
1740  * directly.
1741  */
1742 #ifdef FEAT_GUI
1743     if (!gui.in_use)
1744 #endif
1745     {
1746 	bs_p = find_termcode((char_u *)"kb");
1747 	del_p = find_termcode((char_u *)"kD");
1748 	if (bs_p == NULL || *bs_p == NUL)
1749 	    add_termcode((char_u *)"kb", (bs_p = (char_u *)CTRL_H_STR), FALSE);
1750 	if ((del_p == NULL || *del_p == NUL) &&
1751 					    (bs_p == NULL || *bs_p != DEL))
1752 	    add_termcode((char_u *)"kD", (char_u *)DEL_STR, FALSE);
1753     }
1754 
1755 #if defined(UNIX) || defined(VMS)
1756     term_is_xterm = vim_is_xterm(term);
1757 #endif
1758 
1759 #ifdef FEAT_MOUSE
1760 # if defined(UNIX) || defined(VMS)
1761 #  ifdef FEAT_MOUSE_TTY
1762     /*
1763      * For Unix, set the 'ttymouse' option to the type of mouse to be used.
1764      * The termcode for the mouse is added as a side effect in option.c.
1765      */
1766     {
1767 	char_u	*p;
1768 
1769 	p = (char_u *)"";
1770 #  ifdef FEAT_MOUSE_XTERM
1771 	if (use_xterm_like_mouse(term))
1772 	{
1773 	    if (use_xterm_mouse())
1774 		p = NULL;	/* keep existing value, might be "xterm2" */
1775 	    else
1776 		p = (char_u *)"xterm";
1777 	}
1778 #  endif
1779 	if (p != NULL)
1780 	{
1781 	    set_option_value((char_u *)"ttym", 0L, p, 0);
1782 	    /* Reset the WAS_SET flag, 'ttymouse' can be set to "sgr" or
1783 	     * "xterm2" in check_termcode(). */
1784 	    reset_option_was_set((char_u *)"ttym");
1785 	}
1786 	if (p == NULL
1787 #   ifdef FEAT_GUI
1788 		|| gui.in_use
1789 #   endif
1790 		)
1791 	    check_mouse_termcode();	/* set mouse termcode anyway */
1792     }
1793 #  endif
1794 # else
1795     set_mouse_termcode(KS_MOUSE, (char_u *)"\233M");
1796 # endif
1797 #endif	/* FEAT_MOUSE */
1798 
1799 #ifdef USE_TERM_CONSOLE
1800     /* DEFAULT_TERM indicates that it is the machine console. */
1801     if (STRCMP(term, DEFAULT_TERM) != 0)
1802 	term_console = FALSE;
1803     else
1804     {
1805 	term_console = TRUE;
1806 # ifdef AMIGA
1807 	win_resize_on();	/* enable window resizing reports */
1808 # endif
1809     }
1810 #endif
1811 
1812 #if defined(UNIX) || defined(VMS)
1813     /*
1814      * 'ttyfast' is default on for xterm, iris-ansi and a few others.
1815      */
1816     if (vim_is_fastterm(term))
1817 	p_tf = TRUE;
1818 #endif
1819 #ifdef USE_TERM_CONSOLE
1820     /*
1821      * 'ttyfast' is default on consoles
1822      */
1823     if (term_console)
1824 	p_tf = TRUE;
1825 #endif
1826 
1827     ttest(TRUE);	/* make sure we have a valid set of terminal codes */
1828 
1829     full_screen = TRUE;		/* we can use termcap codes from now on */
1830     set_term_defaults();	/* use current values as defaults */
1831 #ifdef FEAT_TERMRESPONSE
1832     LOG_TR("setting crv_status to CRV_GET");
1833     crv_status = CRV_GET;	/* Get terminal version later */
1834 #endif
1835 
1836     /*
1837      * Initialize the terminal with the appropriate termcap codes.
1838      * Set the mouse and window title if possible.
1839      * Don't do this when starting, need to parse the .vimrc first, because it
1840      * may redefine t_TI etc.
1841      */
1842     if (starting != NO_SCREEN)
1843     {
1844 	starttermcap();		/* may change terminal mode */
1845 #ifdef FEAT_MOUSE
1846 	setmouse();		/* may start using the mouse */
1847 #endif
1848 #ifdef FEAT_TITLE
1849 	maketitle();		/* may display window title */
1850 #endif
1851     }
1852 
1853 	/* display initial screen after ttest() checking. jw. */
1854     if (width <= 0 || height <= 0)
1855     {
1856 	/* termcap failed to report size */
1857 	/* set defaults, in case ui_get_shellsize() also fails */
1858 	width = 80;
1859 #if defined(WIN3264)
1860 	height = 25;	    /* console is often 25 lines */
1861 #else
1862 	height = 24;	    /* most terminals are 24 lines */
1863 #endif
1864     }
1865     set_shellsize(width, height, FALSE);	/* may change Rows */
1866     if (starting != NO_SCREEN)
1867     {
1868 	if (scroll_region)
1869 	    scroll_region_reset();		/* In case Rows changed */
1870 	check_map_keycodes();	/* check mappings for terminal codes used */
1871 
1872 #ifdef FEAT_AUTOCMD
1873 	{
1874 	    buf_T	*old_curbuf;
1875 
1876 	    /*
1877 	     * Execute the TermChanged autocommands for each buffer that is
1878 	     * loaded.
1879 	     */
1880 	    old_curbuf = curbuf;
1881 	    for (curbuf = firstbuf; curbuf != NULL; curbuf = curbuf->b_next)
1882 	    {
1883 		if (curbuf->b_ml.ml_mfp != NULL)
1884 		    apply_autocmds(EVENT_TERMCHANGED, NULL, NULL, FALSE,
1885 								      curbuf);
1886 	    }
1887 	    if (buf_valid(old_curbuf))
1888 		curbuf = old_curbuf;
1889 	}
1890 #endif
1891     }
1892 
1893 #ifdef FEAT_TERMRESPONSE
1894     may_req_termresponse();
1895 #endif
1896 
1897     return OK;
1898 }
1899 
1900 #if defined(FEAT_MOUSE) || defined(PROTO)
1901 
1902 # ifdef FEAT_MOUSE_TTY
1903 #  define HMT_NORMAL	1
1904 #  define HMT_NETTERM	2
1905 #  define HMT_DEC	4
1906 #  define HMT_JSBTERM	8
1907 #  define HMT_PTERM	16
1908 #  define HMT_URXVT	32
1909 #  define HMT_SGR	64
1910 static int has_mouse_termcode = 0;
1911 # endif
1912 
1913 # if (!defined(UNIX) || defined(FEAT_MOUSE_TTY)) || defined(PROTO)
1914     void
1915 set_mouse_termcode(
1916     int		n,	/* KS_MOUSE, KS_NETTERM_MOUSE or KS_DEC_MOUSE */
1917     char_u	*s)
1918 {
1919     char_u	name[2];
1920 
1921     name[0] = n;
1922     name[1] = KE_FILLER;
1923     add_termcode(name, s, FALSE);
1924 #  ifdef FEAT_MOUSE_TTY
1925 #   ifdef FEAT_MOUSE_JSB
1926     if (n == KS_JSBTERM_MOUSE)
1927 	has_mouse_termcode |= HMT_JSBTERM;
1928     else
1929 #   endif
1930 #   ifdef FEAT_MOUSE_NET
1931     if (n == KS_NETTERM_MOUSE)
1932 	has_mouse_termcode |= HMT_NETTERM;
1933     else
1934 #   endif
1935 #   ifdef FEAT_MOUSE_DEC
1936     if (n == KS_DEC_MOUSE)
1937 	has_mouse_termcode |= HMT_DEC;
1938     else
1939 #   endif
1940 #   ifdef FEAT_MOUSE_PTERM
1941     if (n == KS_PTERM_MOUSE)
1942 	has_mouse_termcode |= HMT_PTERM;
1943     else
1944 #   endif
1945 #   ifdef FEAT_MOUSE_URXVT
1946     if (n == KS_URXVT_MOUSE)
1947 	has_mouse_termcode |= HMT_URXVT;
1948     else
1949 #   endif
1950 #   ifdef FEAT_MOUSE_SGR
1951     if (n == KS_SGR_MOUSE)
1952 	has_mouse_termcode |= HMT_SGR;
1953     else
1954 #   endif
1955 	has_mouse_termcode |= HMT_NORMAL;
1956 #  endif
1957 }
1958 # endif
1959 
1960 # if ((defined(UNIX) || defined(VMS)) \
1961 	&& defined(FEAT_MOUSE_TTY)) || defined(PROTO)
1962     void
1963 del_mouse_termcode(
1964     int		n)	/* KS_MOUSE, KS_NETTERM_MOUSE or KS_DEC_MOUSE */
1965 {
1966     char_u	name[2];
1967 
1968     name[0] = n;
1969     name[1] = KE_FILLER;
1970     del_termcode(name);
1971 #  ifdef FEAT_MOUSE_TTY
1972 #   ifdef FEAT_MOUSE_JSB
1973     if (n == KS_JSBTERM_MOUSE)
1974 	has_mouse_termcode &= ~HMT_JSBTERM;
1975     else
1976 #   endif
1977 #   ifdef FEAT_MOUSE_NET
1978     if (n == KS_NETTERM_MOUSE)
1979 	has_mouse_termcode &= ~HMT_NETTERM;
1980     else
1981 #   endif
1982 #   ifdef FEAT_MOUSE_DEC
1983     if (n == KS_DEC_MOUSE)
1984 	has_mouse_termcode &= ~HMT_DEC;
1985     else
1986 #   endif
1987 #   ifdef FEAT_MOUSE_PTERM
1988     if (n == KS_PTERM_MOUSE)
1989 	has_mouse_termcode &= ~HMT_PTERM;
1990     else
1991 #   endif
1992 #   ifdef FEAT_MOUSE_URXVT
1993     if (n == KS_URXVT_MOUSE)
1994 	has_mouse_termcode &= ~HMT_URXVT;
1995     else
1996 #   endif
1997 #   ifdef FEAT_MOUSE_SGR
1998     if (n == KS_SGR_MOUSE)
1999 	has_mouse_termcode &= ~HMT_SGR;
2000     else
2001 #   endif
2002 	has_mouse_termcode &= ~HMT_NORMAL;
2003 #  endif
2004 }
2005 # endif
2006 #endif
2007 
2008 #ifdef HAVE_TGETENT
2009 /*
2010  * Call tgetent()
2011  * Return error message if it fails, NULL if it's OK.
2012  */
2013     static char_u *
2014 tgetent_error(char_u *tbuf, char_u *term)
2015 {
2016     int	    i;
2017 
2018     i = TGETENT(tbuf, term);
2019     if (i < 0		    /* -1 is always an error */
2020 # ifdef TGETENT_ZERO_ERR
2021 	    || i == 0	    /* sometimes zero is also an error */
2022 # endif
2023        )
2024     {
2025 	/* On FreeBSD tputs() gets a SEGV after a tgetent() which fails.  Call
2026 	 * tgetent() with the always existing "dumb" entry to avoid a crash or
2027 	 * hang. */
2028 	(void)TGETENT(tbuf, "dumb");
2029 
2030 	if (i < 0)
2031 # ifdef TGETENT_ZERO_ERR
2032 	    return (char_u *)_("E557: Cannot open termcap file");
2033 	if (i == 0)
2034 # endif
2035 #ifdef TERMINFO
2036 	    return (char_u *)_("E558: Terminal entry not found in terminfo");
2037 #else
2038 	    return (char_u *)_("E559: Terminal entry not found in termcap");
2039 #endif
2040     }
2041     return NULL;
2042 }
2043 
2044 /*
2045  * Some versions of tgetstr() have been reported to return -1 instead of NULL.
2046  * Fix that here.
2047  */
2048     static char_u *
2049 vim_tgetstr(char *s, char_u **pp)
2050 {
2051     char	*p;
2052 
2053     p = tgetstr(s, (char **)pp);
2054     if (p == (char *)-1)
2055 	p = NULL;
2056     return (char_u *)p;
2057 }
2058 #endif /* HAVE_TGETENT */
2059 
2060 #if defined(HAVE_TGETENT) && (defined(UNIX) || defined(__EMX__) || defined(VMS) || defined(MACOS_X))
2061 /*
2062  * Get Columns and Rows from the termcap. Used after a window signal if the
2063  * ioctl() fails. It doesn't make sense to call tgetent each time if the "co"
2064  * and "li" entries never change. But on some systems this works.
2065  * Errors while getting the entries are ignored.
2066  */
2067     void
2068 getlinecol(
2069     long	*cp,	/* pointer to columns */
2070     long	*rp)	/* pointer to rows */
2071 {
2072     char_u	tbuf[TBUFSZ];
2073 
2074     if (T_NAME != NULL && *T_NAME != NUL && tgetent_error(tbuf, T_NAME) == NULL)
2075     {
2076 	if (*cp == 0)
2077 	    *cp = tgetnum("co");
2078 	if (*rp == 0)
2079 	    *rp = tgetnum("li");
2080     }
2081 }
2082 #endif /* defined(HAVE_TGETENT) && defined(UNIX) */
2083 
2084 /*
2085  * Get a string entry from the termcap and add it to the list of termcodes.
2086  * Used for <t_xx> special keys.
2087  * Give an error message for failure when not sourcing.
2088  * If force given, replace an existing entry.
2089  * Return FAIL if the entry was not found, OK if the entry was added.
2090  */
2091     int
2092 add_termcap_entry(char_u *name, int force)
2093 {
2094     char_u  *term;
2095     int	    key;
2096     struct builtin_term *termp;
2097 #ifdef HAVE_TGETENT
2098     char_u  *string;
2099     int	    i;
2100     int	    builtin_first;
2101     char_u  tbuf[TBUFSZ];
2102     char_u  tstrbuf[TBUFSZ];
2103     char_u  *tp = tstrbuf;
2104     char_u  *error_msg = NULL;
2105 #endif
2106 
2107 /*
2108  * If the GUI is running or will start in a moment, we only support the keys
2109  * that the GUI can produce.
2110  */
2111 #ifdef FEAT_GUI
2112     if (gui.in_use || gui.starting)
2113 	return gui_mch_haskey(name);
2114 #endif
2115 
2116     if (!force && find_termcode(name) != NULL)	    /* it's already there */
2117 	return OK;
2118 
2119     term = T_NAME;
2120     if (term == NULL || *term == NUL)	    /* 'term' not defined yet */
2121 	return FAIL;
2122 
2123     if (term_is_builtin(term))		    /* name starts with "builtin_" */
2124     {
2125 	term += 8;
2126 #ifdef HAVE_TGETENT
2127 	builtin_first = TRUE;
2128 #endif
2129     }
2130 #ifdef HAVE_TGETENT
2131     else
2132 	builtin_first = p_tbi;
2133 #endif
2134 
2135 #ifdef HAVE_TGETENT
2136 /*
2137  * We can get the entry from the builtin termcap and from the external one.
2138  * If 'ttybuiltin' is on or the terminal name starts with "builtin_", try
2139  * builtin termcap first.
2140  * If 'ttybuiltin' is off, try external termcap first.
2141  */
2142     for (i = 0; i < 2; ++i)
2143     {
2144 	if ((!builtin_first) == i)
2145 #endif
2146 	/*
2147 	 * Search in builtin termcap
2148 	 */
2149 	{
2150 	    termp = find_builtin_term(term);
2151 	    if (termp->bt_string != NULL)	/* found it */
2152 	    {
2153 		key = TERMCAP2KEY(name[0], name[1]);
2154 		while (termp->bt_entry != (int)KS_NAME)
2155 		{
2156 		    if ((int)termp->bt_entry == key)
2157 		    {
2158 			add_termcode(name, (char_u *)termp->bt_string,
2159 							  term_is_8bit(term));
2160 			return OK;
2161 		    }
2162 		    ++termp;
2163 		}
2164 	    }
2165 	}
2166 #ifdef HAVE_TGETENT
2167 	else
2168 	/*
2169 	 * Search in external termcap
2170 	 */
2171 	{
2172 	    error_msg = tgetent_error(tbuf, term);
2173 	    if (error_msg == NULL)
2174 	    {
2175 		string = TGETSTR((char *)name, &tp);
2176 		if (string != NULL && *string != NUL)
2177 		{
2178 		    add_termcode(name, string, FALSE);
2179 		    return OK;
2180 		}
2181 	    }
2182 	}
2183     }
2184 #endif
2185 
2186     if (sourcing_name == NULL)
2187     {
2188 #ifdef HAVE_TGETENT
2189 	if (error_msg != NULL)
2190 	    EMSG(error_msg);
2191 	else
2192 #endif
2193 	    EMSG2(_("E436: No \"%s\" entry in termcap"), name);
2194     }
2195     return FAIL;
2196 }
2197 
2198     static int
2199 term_is_builtin(char_u *name)
2200 {
2201     return (STRNCMP(name, "builtin_", (size_t)8) == 0);
2202 }
2203 
2204 /*
2205  * Return TRUE if terminal "name" uses CSI instead of <Esc>[.
2206  * Assume that the terminal is using 8-bit controls when the name contains
2207  * "8bit", like in "xterm-8bit".
2208  */
2209     int
2210 term_is_8bit(char_u *name)
2211 {
2212     return (detected_8bit || strstr((char *)name, "8bit") != NULL);
2213 }
2214 
2215 /*
2216  * Translate terminal control chars from 7-bit to 8-bit:
2217  * <Esc>[ -> CSI
2218  * <Esc>] -> <M-C-]>
2219  * <Esc>O -> <M-C-O>
2220  */
2221     static int
2222 term_7to8bit(char_u *p)
2223 {
2224     if (*p == ESC)
2225     {
2226 	if (p[1] == '[')
2227 	    return CSI;
2228 	if (p[1] == ']')
2229 	    return OSC;
2230 	if (p[1] == 'O')
2231 	    return 0x8f;
2232     }
2233     return 0;
2234 }
2235 
2236 #ifdef FEAT_GUI
2237     int
2238 term_is_gui(char_u *name)
2239 {
2240     return (STRCMP(name, "builtin_gui") == 0 || STRCMP(name, "gui") == 0);
2241 }
2242 #endif
2243 
2244 #if !defined(HAVE_TGETENT) || defined(AMIGA) || defined(PROTO)
2245 
2246     char_u *
2247 tltoa(unsigned long i)
2248 {
2249     static char_u buf[16];
2250     char_u	*p;
2251 
2252     p = buf + 15;
2253     *p = '\0';
2254     do
2255     {
2256 	--p;
2257 	*p = (char_u) (i % 10 + '0');
2258 	i /= 10;
2259     }
2260     while (i > 0 && p > buf);
2261     return p;
2262 }
2263 #endif
2264 
2265 #ifndef HAVE_TGETENT
2266 
2267 /*
2268  * minimal tgoto() implementation.
2269  * no padding and we only parse for %i %d and %+char
2270  */
2271 static char *tgoto(char *, int, int);
2272 
2273     static char *
2274 tgoto(char *cm, int x, int y)
2275 {
2276     static char buf[30];
2277     char *p, *s, *e;
2278 
2279     if (!cm)
2280 	return "OOPS";
2281     e = buf + 29;
2282     for (s = buf; s < e && *cm; cm++)
2283     {
2284 	if (*cm != '%')
2285 	{
2286 	    *s++ = *cm;
2287 	    continue;
2288 	}
2289 	switch (*++cm)
2290 	{
2291 	case 'd':
2292 	    p = (char *)tltoa((unsigned long)y);
2293 	    y = x;
2294 	    while (*p)
2295 		*s++ = *p++;
2296 	    break;
2297 	case 'i':
2298 	    x++;
2299 	    y++;
2300 	    break;
2301 	case '+':
2302 	    *s++ = (char)(*++cm + y);
2303 	    y = x;
2304 	    break;
2305 	case '%':
2306 	    *s++ = *cm;
2307 	    break;
2308 	default:
2309 	    return "OOPS";
2310 	}
2311     }
2312     *s = '\0';
2313     return buf;
2314 }
2315 
2316 #endif /* HAVE_TGETENT */
2317 
2318 /*
2319  * Set the terminal name and initialize the terminal options.
2320  * If "name" is NULL or empty, get the terminal name from the environment.
2321  * If that fails, use the default terminal name.
2322  */
2323     void
2324 termcapinit(char_u *name)
2325 {
2326     char_u	*term;
2327 
2328     if (name != NULL && *name == NUL)
2329 	name = NULL;	    /* empty name is equal to no name */
2330     term = name;
2331 
2332 #ifdef __BEOS__
2333     /*
2334      * TERM environment variable is normally set to 'ansi' on the Bebox;
2335      * Since the BeBox doesn't quite support full ANSI yet, we use our
2336      * own custom 'ansi-beos' termcap instead, unless the -T option has
2337      * been given on the command line.
2338      */
2339     if (term == NULL
2340 		 && strcmp((char *)mch_getenv((char_u *)"TERM"), "ansi") == 0)
2341 	term = DEFAULT_TERM;
2342 #endif
2343 #ifndef MSWIN
2344     if (term == NULL)
2345 	term = mch_getenv((char_u *)"TERM");
2346 #endif
2347     if (term == NULL || *term == NUL)
2348 	term = DEFAULT_TERM;
2349     set_string_option_direct((char_u *)"term", -1, term, OPT_FREE, 0);
2350 
2351     /* Set the default terminal name. */
2352     set_string_default("term", term);
2353     set_string_default("ttytype", term);
2354 
2355     /*
2356      * Avoid using "term" here, because the next mch_getenv() may overwrite it.
2357      */
2358     set_termname(T_NAME != NULL ? T_NAME : term);
2359 }
2360 
2361 /*
2362  * the number of calls to ui_write is reduced by using the buffer "out_buf"
2363  */
2364 #ifdef DOS16
2365 # define OUT_SIZE	255		/* only have 640K total... */
2366 #else
2367 # define OUT_SIZE	2047
2368 #endif
2369 	    /* Add one to allow mch_write() in os_win32.c to append a NUL */
2370 static char_u		out_buf[OUT_SIZE + 1];
2371 static int		out_pos = 0;	/* number of chars in out_buf */
2372 
2373 /*
2374  * out_flush(): flush the output buffer
2375  */
2376     void
2377 out_flush(void)
2378 {
2379     int	    len;
2380 
2381     if (out_pos != 0)
2382     {
2383 	/* set out_pos to 0 before ui_write, to avoid recursiveness */
2384 	len = out_pos;
2385 	out_pos = 0;
2386 	ui_write(out_buf, len);
2387     }
2388 }
2389 
2390 #if defined(FEAT_MBYTE) || defined(PROTO)
2391 /*
2392  * Sometimes a byte out of a multi-byte character is written with out_char().
2393  * To avoid flushing half of the character, call this function first.
2394  */
2395     void
2396 out_flush_check(void)
2397 {
2398     if (enc_dbcs != 0 && out_pos >= OUT_SIZE - MB_MAXBYTES)
2399 	out_flush();
2400 }
2401 #endif
2402 
2403 #ifdef FEAT_GUI
2404 /*
2405  * out_trash(): Throw away the contents of the output buffer
2406  */
2407     void
2408 out_trash(void)
2409 {
2410     out_pos = 0;
2411 }
2412 #endif
2413 
2414 /*
2415  * out_char(c): put a byte into the output buffer.
2416  *		Flush it if it becomes full.
2417  * This should not be used for outputting text on the screen (use functions
2418  * like msg_puts() and screen_putchar() for that).
2419  */
2420     void
2421 out_char(unsigned c)
2422 {
2423 #if defined(UNIX) || defined(VMS) || defined(AMIGA) || defined(MACOS_X_UNIX)
2424     if (c == '\n')	/* turn LF into CR-LF (CRMOD doesn't seem to do this) */
2425 	out_char('\r');
2426 #endif
2427 
2428     out_buf[out_pos++] = c;
2429 
2430     /* For testing we flush each time. */
2431     if (out_pos >= OUT_SIZE || p_wd)
2432 	out_flush();
2433 }
2434 
2435 static void out_char_nf(unsigned);
2436 
2437 /*
2438  * out_char_nf(c): like out_char(), but don't flush when p_wd is set
2439  */
2440     static void
2441 out_char_nf(unsigned c)
2442 {
2443 #if defined(UNIX) || defined(VMS) || defined(AMIGA) || defined(MACOS_X_UNIX)
2444     if (c == '\n')	/* turn LF into CR-LF (CRMOD doesn't seem to do this) */
2445 	out_char_nf('\r');
2446 #endif
2447 
2448     out_buf[out_pos++] = c;
2449 
2450     if (out_pos >= OUT_SIZE)
2451 	out_flush();
2452 }
2453 
2454 #if defined(FEAT_TITLE) || defined(FEAT_MOUSE_TTY) || defined(FEAT_GUI) \
2455     || defined(FEAT_TERMRESPONSE) || defined(PROTO)
2456 /*
2457  * A never-padding out_str.
2458  * use this whenever you don't want to run the string through tputs.
2459  * tputs above is harmless, but tputs from the termcap library
2460  * is likely to strip off leading digits, that it mistakes for padding
2461  * information, and "%i", "%d", etc.
2462  * This should only be used for writing terminal codes, not for outputting
2463  * normal text (use functions like msg_puts() and screen_putchar() for that).
2464  */
2465     void
2466 out_str_nf(char_u *s)
2467 {
2468     if (out_pos > OUT_SIZE - 20)  /* avoid terminal strings being split up */
2469 	out_flush();
2470     while (*s)
2471 	out_char_nf(*s++);
2472 
2473     /* For testing we write one string at a time. */
2474     if (p_wd)
2475 	out_flush();
2476 }
2477 #endif
2478 
2479 /*
2480  * out_str(s): Put a character string a byte at a time into the output buffer.
2481  * If HAVE_TGETENT is defined use the termcap parser. (jw)
2482  * This should only be used for writing terminal codes, not for outputting
2483  * normal text (use functions like msg_puts() and screen_putchar() for that).
2484  */
2485     void
2486 out_str(char_u *s)
2487 {
2488     if (s != NULL && *s)
2489     {
2490 #ifdef FEAT_GUI
2491 	/* Don't use tputs() when GUI is used, ncurses crashes. */
2492 	if (gui.in_use)
2493 	{
2494 	    out_str_nf(s);
2495 	    return;
2496 	}
2497 #endif
2498 	/* avoid terminal strings being split up */
2499 	if (out_pos > OUT_SIZE - 20)
2500 	    out_flush();
2501 #ifdef HAVE_TGETENT
2502 	tputs((char *)s, 1, TPUTSFUNCAST out_char_nf);
2503 #else
2504 	while (*s)
2505 	    out_char_nf(*s++);
2506 #endif
2507 
2508 	/* For testing we write one string at a time. */
2509 	if (p_wd)
2510 	    out_flush();
2511     }
2512 }
2513 
2514 /*
2515  * cursor positioning using termcap parser. (jw)
2516  */
2517     void
2518 term_windgoto(int row, int col)
2519 {
2520     OUT_STR(tgoto((char *)T_CM, col, row));
2521 }
2522 
2523     void
2524 term_cursor_right(int i)
2525 {
2526     OUT_STR(tgoto((char *)T_CRI, 0, i));
2527 }
2528 
2529     void
2530 term_append_lines(int line_count)
2531 {
2532     OUT_STR(tgoto((char *)T_CAL, 0, line_count));
2533 }
2534 
2535     void
2536 term_delete_lines(int line_count)
2537 {
2538     OUT_STR(tgoto((char *)T_CDL, 0, line_count));
2539 }
2540 
2541 #if defined(HAVE_TGETENT) || defined(PROTO)
2542     void
2543 term_set_winpos(int x, int y)
2544 {
2545     /* Can't handle a negative value here */
2546     if (x < 0)
2547 	x = 0;
2548     if (y < 0)
2549 	y = 0;
2550     OUT_STR(tgoto((char *)T_CWP, y, x));
2551 }
2552 
2553     void
2554 term_set_winsize(int width, int height)
2555 {
2556     OUT_STR(tgoto((char *)T_CWS, height, width));
2557 }
2558 #endif
2559 
2560     void
2561 term_fg_color(int n)
2562 {
2563     /* Use "AF" termcap entry if present, "Sf" entry otherwise */
2564     if (*T_CAF)
2565 	term_color(T_CAF, n);
2566     else if (*T_CSF)
2567 	term_color(T_CSF, n);
2568 }
2569 
2570     void
2571 term_bg_color(int n)
2572 {
2573     /* Use "AB" termcap entry if present, "Sb" entry otherwise */
2574     if (*T_CAB)
2575 	term_color(T_CAB, n);
2576     else if (*T_CSB)
2577 	term_color(T_CSB, n);
2578 }
2579 
2580     static void
2581 term_color(char_u *s, int n)
2582 {
2583     char	buf[20];
2584     int i = 2;	/* index in s[] just after <Esc>[ or CSI */
2585 
2586     /* Special handling of 16 colors, because termcap can't handle it */
2587     /* Also accept "\e[3%dm" for TERMINFO, it is sometimes used */
2588     /* Also accept CSI instead of <Esc>[ */
2589     if (n >= 8 && t_colors >= 16
2590 	      && ((s[0] == ESC && s[1] == '[') || (s[0] == CSI && (i = 1) == 1))
2591 	      && s[i] != NUL
2592 	      && (STRCMP(s + i + 1, "%p1%dm") == 0
2593 		  || STRCMP(s + i + 1, "%dm") == 0)
2594 	      && (s[i] == '3' || s[i] == '4'))
2595     {
2596 	sprintf(buf,
2597 #ifdef TERMINFO
2598 		"%s%s%%p1%%dm",
2599 #else
2600 		"%s%s%%dm",
2601 #endif
2602 		i == 2 ? IF_EB("\033[", ESC_STR "[") : "\233",
2603 		s[i] == '3' ? (n >= 16 ? "38;5;" : "9")
2604 			    : (n >= 16 ? "48;5;" : "10"));
2605 	OUT_STR(tgoto(buf, 0, n >= 16 ? n : n - 8));
2606     }
2607     else
2608 	OUT_STR(tgoto((char *)s, 0, n));
2609 }
2610 
2611 #if (defined(FEAT_TITLE) && (defined(UNIX) || defined(VMS) \
2612 	|| defined(MACOS_X))) || defined(PROTO)
2613 /*
2614  * Generic function to set window title, using t_ts and t_fs.
2615  */
2616     void
2617 term_settitle(char_u *title)
2618 {
2619     /* t_ts takes one argument: column in status line */
2620     OUT_STR(tgoto((char *)T_TS, 0, 0));	/* set title start */
2621     out_str_nf(title);
2622     out_str(T_FS);			/* set title end */
2623     out_flush();
2624 }
2625 #endif
2626 
2627 /*
2628  * Make sure we have a valid set or terminal options.
2629  * Replace all entries that are NULL by empty_option
2630  */
2631     void
2632 ttest(int pairs)
2633 {
2634     check_options();		    /* make sure no options are NULL */
2635 
2636     /*
2637      * MUST have "cm": cursor motion.
2638      */
2639     if (*T_CM == NUL)
2640 	EMSG(_("E437: terminal capability \"cm\" required"));
2641 
2642     /*
2643      * if "cs" defined, use a scroll region, it's faster.
2644      */
2645     if (*T_CS != NUL)
2646 	scroll_region = TRUE;
2647     else
2648 	scroll_region = FALSE;
2649 
2650     if (pairs)
2651     {
2652 	/*
2653 	 * optional pairs
2654 	 */
2655 	/* TP goes to normal mode for TI (invert) and TB (bold) */
2656 	if (*T_ME == NUL)
2657 	    T_ME = T_MR = T_MD = T_MB = empty_option;
2658 	if (*T_SO == NUL || *T_SE == NUL)
2659 	    T_SO = T_SE = empty_option;
2660 	if (*T_US == NUL || *T_UE == NUL)
2661 	    T_US = T_UE = empty_option;
2662 	if (*T_CZH == NUL || *T_CZR == NUL)
2663 	    T_CZH = T_CZR = empty_option;
2664 
2665 	/* T_VE is needed even though T_VI is not defined */
2666 	if (*T_VE == NUL)
2667 	    T_VI = empty_option;
2668 
2669 	/* if 'mr' or 'me' is not defined use 'so' and 'se' */
2670 	if (*T_ME == NUL)
2671 	{
2672 	    T_ME = T_SE;
2673 	    T_MR = T_SO;
2674 	    T_MD = T_SO;
2675 	}
2676 
2677 	/* if 'so' or 'se' is not defined use 'mr' and 'me' */
2678 	if (*T_SO == NUL)
2679 	{
2680 	    T_SE = T_ME;
2681 	    if (*T_MR == NUL)
2682 		T_SO = T_MD;
2683 	    else
2684 		T_SO = T_MR;
2685 	}
2686 
2687 	/* if 'ZH' or 'ZR' is not defined use 'mr' and 'me' */
2688 	if (*T_CZH == NUL)
2689 	{
2690 	    T_CZR = T_ME;
2691 	    if (*T_MR == NUL)
2692 		T_CZH = T_MD;
2693 	    else
2694 		T_CZH = T_MR;
2695 	}
2696 
2697 	/* "Sb" and "Sf" come in pairs */
2698 	if (*T_CSB == NUL || *T_CSF == NUL)
2699 	{
2700 	    T_CSB = empty_option;
2701 	    T_CSF = empty_option;
2702 	}
2703 
2704 	/* "AB" and "AF" come in pairs */
2705 	if (*T_CAB == NUL || *T_CAF == NUL)
2706 	{
2707 	    T_CAB = empty_option;
2708 	    T_CAF = empty_option;
2709 	}
2710 
2711 	/* if 'Sb' and 'AB' are not defined, reset "Co" */
2712 	if (*T_CSB == NUL && *T_CAB == NUL)
2713 	    free_one_termoption(T_CCO);
2714 
2715 	/* Set 'weirdinvert' according to value of 't_xs' */
2716 	p_wiv = (*T_XS != NUL);
2717     }
2718     need_gather = TRUE;
2719 
2720     /* Set t_colors to the value of t_Co. */
2721     t_colors = atoi((char *)T_CCO);
2722 }
2723 
2724 #if (defined(FEAT_GUI) && (defined(FEAT_MENU) || !defined(USE_ON_FLY_SCROLL))) \
2725 	|| defined(PROTO)
2726 /*
2727  * Represent the given long_u as individual bytes, with the most significant
2728  * byte first, and store them in dst.
2729  */
2730     void
2731 add_long_to_buf(long_u val, char_u *dst)
2732 {
2733     int	    i;
2734     int	    shift;
2735 
2736     for (i = 1; i <= (int)sizeof(long_u); i++)
2737     {
2738 	shift = 8 * (sizeof(long_u) - i);
2739 	dst[i - 1] = (char_u) ((val >> shift) & 0xff);
2740     }
2741 }
2742 
2743 static int get_long_from_buf(char_u *buf, long_u *val);
2744 
2745 /*
2746  * Interpret the next string of bytes in buf as a long integer, with the most
2747  * significant byte first.  Note that it is assumed that buf has been through
2748  * inchar(), so that NUL and K_SPECIAL will be represented as three bytes each.
2749  * Puts result in val, and returns the number of bytes read from buf
2750  * (between sizeof(long_u) and 2 * sizeof(long_u)), or -1 if not enough bytes
2751  * were present.
2752  */
2753     static int
2754 get_long_from_buf(char_u *buf, long_u *val)
2755 {
2756     int	    len;
2757     char_u  bytes[sizeof(long_u)];
2758     int	    i;
2759     int	    shift;
2760 
2761     *val = 0;
2762     len = get_bytes_from_buf(buf, bytes, (int)sizeof(long_u));
2763     if (len != -1)
2764     {
2765 	for (i = 0; i < (int)sizeof(long_u); i++)
2766 	{
2767 	    shift = 8 * (sizeof(long_u) - 1 - i);
2768 	    *val += (long_u)bytes[i] << shift;
2769 	}
2770     }
2771     return len;
2772 }
2773 #endif
2774 
2775 #if defined(FEAT_GUI) \
2776     || (defined(FEAT_MOUSE) && (!defined(UNIX) || defined(FEAT_MOUSE_XTERM) \
2777 		|| defined(FEAT_MOUSE_GPM) || defined(FEAT_SYSMOUSE)))
2778 /*
2779  * Read the next num_bytes bytes from buf, and store them in bytes.  Assume
2780  * that buf has been through inchar().	Returns the actual number of bytes used
2781  * from buf (between num_bytes and num_bytes*2), or -1 if not enough bytes were
2782  * available.
2783  */
2784     static int
2785 get_bytes_from_buf(char_u *buf, char_u *bytes, int num_bytes)
2786 {
2787     int	    len = 0;
2788     int	    i;
2789     char_u  c;
2790 
2791     for (i = 0; i < num_bytes; i++)
2792     {
2793 	if ((c = buf[len++]) == NUL)
2794 	    return -1;
2795 	if (c == K_SPECIAL)
2796 	{
2797 	    if (buf[len] == NUL || buf[len + 1] == NUL)	    /* cannot happen? */
2798 		return -1;
2799 	    if (buf[len++] == (int)KS_ZERO)
2800 		c = NUL;
2801 	    /* else it should be KS_SPECIAL; when followed by KE_FILLER c is
2802 	     * K_SPECIAL, or followed by KE_CSI and c must be CSI. */
2803 	    if (buf[len++] == (int)KE_CSI)
2804 		c = CSI;
2805 	}
2806 	else if (c == CSI && buf[len] == KS_EXTRA
2807 					       && buf[len + 1] == (int)KE_CSI)
2808 	    /* CSI is stored as CSI KS_SPECIAL KE_CSI to avoid confusion with
2809 	     * the start of a special key, see add_to_input_buf_csi(). */
2810 	    len += 2;
2811 	bytes[i] = c;
2812     }
2813     return len;
2814 }
2815 #endif
2816 
2817 /*
2818  * Check if the new shell size is valid, correct it if it's too small or way
2819  * too big.
2820  */
2821     void
2822 check_shellsize(void)
2823 {
2824     if (Rows < min_rows())	/* need room for one window and command line */
2825 	Rows = min_rows();
2826     limit_screen_size();
2827 }
2828 
2829 /*
2830  * Limit Rows and Columns to avoid an overflow in Rows * Columns.
2831  */
2832     void
2833 limit_screen_size(void)
2834 {
2835     if (Columns < MIN_COLUMNS)
2836 	Columns = MIN_COLUMNS;
2837     else if (Columns > 10000)
2838 	Columns = 10000;
2839     if (Rows > 1000)
2840 	Rows = 1000;
2841 }
2842 
2843 /*
2844  * Invoked just before the screen structures are going to be (re)allocated.
2845  */
2846     void
2847 win_new_shellsize(void)
2848 {
2849     static int	old_Rows = 0;
2850     static int	old_Columns = 0;
2851 
2852     if (old_Rows != Rows || old_Columns != Columns)
2853 	ui_new_shellsize();
2854     if (old_Rows != Rows)
2855     {
2856 	/* if 'window' uses the whole screen, keep it using that */
2857 	if (p_window == old_Rows - 1 || old_Rows == 0)
2858 	    p_window = Rows - 1;
2859 	old_Rows = Rows;
2860 	shell_new_rows();	/* update window sizes */
2861     }
2862     if (old_Columns != Columns)
2863     {
2864 	old_Columns = Columns;
2865 #ifdef FEAT_WINDOWS
2866 	shell_new_columns();	/* update window sizes */
2867 #endif
2868     }
2869 }
2870 
2871 /*
2872  * Call this function when the Vim shell has been resized in any way.
2873  * Will obtain the current size and redraw (also when size didn't change).
2874  */
2875     void
2876 shell_resized(void)
2877 {
2878     set_shellsize(0, 0, FALSE);
2879 }
2880 
2881 /*
2882  * Check if the shell size changed.  Handle a resize.
2883  * When the size didn't change, nothing happens.
2884  */
2885     void
2886 shell_resized_check(void)
2887 {
2888     int		old_Rows = Rows;
2889     int		old_Columns = Columns;
2890 
2891     if (!exiting
2892 #ifdef FEAT_GUI
2893 	    /* Do not get the size when executing a shell command during
2894 	     * startup. */
2895 	    && !gui.starting
2896 #endif
2897 	    )
2898     {
2899 	(void)ui_get_shellsize();
2900 	check_shellsize();
2901 	if (old_Rows != Rows || old_Columns != Columns)
2902 	    shell_resized();
2903     }
2904 }
2905 
2906 /*
2907  * Set size of the Vim shell.
2908  * If 'mustset' is TRUE, we must set Rows and Columns, do not get the real
2909  * window size (this is used for the :win command).
2910  * If 'mustset' is FALSE, we may try to get the real window size and if
2911  * it fails use 'width' and 'height'.
2912  */
2913     void
2914 set_shellsize(int width, int height, int mustset)
2915 {
2916     static int		busy = FALSE;
2917 
2918     /*
2919      * Avoid recursiveness, can happen when setting the window size causes
2920      * another window-changed signal.
2921      */
2922     if (busy)
2923 	return;
2924 
2925     if (width < 0 || height < 0)    /* just checking... */
2926 	return;
2927 
2928     if (State == HITRETURN || State == SETWSIZE)
2929     {
2930 	/* postpone the resizing */
2931 	State = SETWSIZE;
2932 	return;
2933     }
2934 
2935     /* curwin->w_buffer can be NULL when we are closing a window and the
2936      * buffer has already been closed and removing a scrollbar causes a resize
2937      * event. Don't resize then, it will happen after entering another buffer.
2938      */
2939     if (curwin->w_buffer == NULL)
2940 	return;
2941 
2942     ++busy;
2943 
2944 #ifdef AMIGA
2945     out_flush();	    /* must do this before mch_get_shellsize() for
2946 			       some obscure reason */
2947 #endif
2948 
2949     if (mustset || (ui_get_shellsize() == FAIL && height != 0))
2950     {
2951 	Rows = height;
2952 	Columns = width;
2953 	check_shellsize();
2954 	ui_set_shellsize(mustset);
2955     }
2956     else
2957 	check_shellsize();
2958 
2959     /* The window layout used to be adjusted here, but it now happens in
2960      * screenalloc() (also invoked from screenclear()).  That is because the
2961      * "busy" check above may skip this, but not screenalloc(). */
2962 
2963     if (State != ASKMORE && State != EXTERNCMD && State != CONFIRM)
2964 	screenclear();
2965     else
2966 	screen_start();	    /* don't know where cursor is now */
2967 
2968     if (starting != NO_SCREEN)
2969     {
2970 #ifdef FEAT_TITLE
2971 	maketitle();
2972 #endif
2973 	changed_line_abv_curs();
2974 	invalidate_botline();
2975 
2976 	/*
2977 	 * We only redraw when it's needed:
2978 	 * - While at the more prompt or executing an external command, don't
2979 	 *   redraw, but position the cursor.
2980 	 * - While editing the command line, only redraw that.
2981 	 * - in Ex mode, don't redraw anything.
2982 	 * - Otherwise, redraw right now, and position the cursor.
2983 	 * Always need to call update_screen() or screenalloc(), to make
2984 	 * sure Rows/Columns and the size of ScreenLines[] is correct!
2985 	 */
2986 	if (State == ASKMORE || State == EXTERNCMD || State == CONFIRM
2987 							     || exmode_active)
2988 	{
2989 	    screenalloc(FALSE);
2990 	    repeat_message();
2991 	}
2992 	else
2993 	{
2994 #ifdef FEAT_SCROLLBIND
2995 	    if (curwin->w_p_scb)
2996 		do_check_scrollbind(TRUE);
2997 #endif
2998 	    if (State & CMDLINE)
2999 	    {
3000 		update_screen(NOT_VALID);
3001 		redrawcmdline();
3002 	    }
3003 	    else
3004 	    {
3005 		update_topline();
3006 #if defined(FEAT_INS_EXPAND)
3007 		if (pum_visible())
3008 		{
3009 		    redraw_later(NOT_VALID);
3010 		    ins_compl_show_pum(); /* This includes the redraw. */
3011 		}
3012 		else
3013 #endif
3014 		    update_screen(NOT_VALID);
3015 		if (redrawing())
3016 		    setcursor();
3017 	    }
3018 	}
3019 	cursor_on();	    /* redrawing may have switched it off */
3020     }
3021     out_flush();
3022     --busy;
3023 }
3024 
3025 /*
3026  * Set the terminal to TMODE_RAW (for Normal mode) or TMODE_COOK (for external
3027  * commands and Ex mode).
3028  */
3029     void
3030 settmode(int tmode)
3031 {
3032 #ifdef FEAT_GUI
3033     /* don't set the term where gvim was started to any mode */
3034     if (gui.in_use)
3035 	return;
3036 #endif
3037 
3038     if (full_screen)
3039     {
3040 	/*
3041 	 * When returning after calling a shell we want to really set the
3042 	 * terminal to raw mode, even though we think it already is, because
3043 	 * the shell program may have reset the terminal mode.
3044 	 * When we think the terminal is normal, don't try to set it to
3045 	 * normal again, because that causes problems (logout!) on some
3046 	 * machines.
3047 	 */
3048 	if (tmode != TMODE_COOK || cur_tmode != TMODE_COOK)
3049 	{
3050 #ifdef FEAT_TERMRESPONSE
3051 # ifdef FEAT_GUI
3052 	    if (!gui.in_use && !gui.starting)
3053 # endif
3054 	    {
3055 		/* May need to check for T_CRV response and termcodes, it
3056 		 * doesn't work in Cooked mode, an external program may get
3057 		 * them. */
3058 		if (tmode != TMODE_RAW && (crv_status == CRV_SENT
3059 					 || u7_status == U7_SENT
3060 					 || rbg_status == RBG_SENT))
3061 		    (void)vpeekc_nomap();
3062 		check_for_codes_from_term();
3063 	    }
3064 #endif
3065 #ifdef FEAT_MOUSE_TTY
3066 	    if (tmode != TMODE_RAW)
3067 		mch_setmouse(FALSE);		/* switch mouse off */
3068 #endif
3069 	    out_flush();
3070 	    mch_settmode(tmode);    /* machine specific function */
3071 	    cur_tmode = tmode;
3072 #ifdef FEAT_MOUSE
3073 	    if (tmode == TMODE_RAW)
3074 		setmouse();			/* may switch mouse on */
3075 #endif
3076 	    out_flush();
3077 	}
3078 #ifdef FEAT_TERMRESPONSE
3079 	may_req_termresponse();
3080 #endif
3081     }
3082 }
3083 
3084     void
3085 starttermcap(void)
3086 {
3087     if (full_screen && !termcap_active)
3088     {
3089 	out_str(T_TI);			/* start termcap mode */
3090 	out_str(T_KS);			/* start "keypad transmit" mode */
3091 	out_flush();
3092 	termcap_active = TRUE;
3093 	screen_start();			/* don't know where cursor is now */
3094 #ifdef FEAT_TERMRESPONSE
3095 # ifdef FEAT_GUI
3096 	if (!gui.in_use && !gui.starting)
3097 # endif
3098 	{
3099 	    may_req_termresponse();
3100 	    /* Immediately check for a response.  If t_Co changes, we don't
3101 	     * want to redraw with wrong colors first. */
3102 	    if (crv_status == CRV_SENT)
3103 		check_for_codes_from_term();
3104 	}
3105 #endif
3106     }
3107 }
3108 
3109     void
3110 stoptermcap(void)
3111 {
3112     screen_stop_highlight();
3113     reset_cterm_colors();
3114     if (termcap_active)
3115     {
3116 #ifdef FEAT_TERMRESPONSE
3117 # ifdef FEAT_GUI
3118 	if (!gui.in_use && !gui.starting)
3119 # endif
3120 	{
3121 	    /* May need to discard T_CRV, T_U7 or T_RBG response. */
3122 	    if (crv_status == CRV_SENT || u7_status == U7_SENT
3123 						     || rbg_status == RBG_SENT)
3124 	    {
3125 # ifdef UNIX
3126 		/* Give the terminal a chance to respond. */
3127 		mch_delay(100L, FALSE);
3128 # endif
3129 # ifdef TCIFLUSH
3130 		/* Discard data received but not read. */
3131 		if (exiting)
3132 		    tcflush(fileno(stdin), TCIFLUSH);
3133 # endif
3134 	    }
3135 	    /* Check for termcodes first, otherwise an external program may
3136 	     * get them. */
3137 	    check_for_codes_from_term();
3138 	}
3139 #endif
3140 	out_str(T_KE);			/* stop "keypad transmit" mode */
3141 	out_flush();
3142 	termcap_active = FALSE;
3143 	cursor_on();			/* just in case it is still off */
3144 	out_str(T_TE);			/* stop termcap mode */
3145 	screen_start();			/* don't know where cursor is now */
3146 	out_flush();
3147     }
3148 }
3149 
3150 #if defined(FEAT_TERMRESPONSE) || defined(PROTO)
3151 /*
3152  * Request version string (for xterm) when needed.
3153  * Only do this after switching to raw mode, otherwise the result will be
3154  * echoed.
3155  * Only do this after startup has finished, to avoid that the response comes
3156  * while executing "-c !cmd" or even after "-c quit".
3157  * Only do this after termcap mode has been started, otherwise the codes for
3158  * the cursor keys may be wrong.
3159  * Only do this when 'esckeys' is on, otherwise the response causes trouble in
3160  * Insert mode.
3161  * On Unix only do it when both output and input are a tty (avoid writing
3162  * request to terminal while reading from a file).
3163  * The result is caught in check_termcode().
3164  */
3165     void
3166 may_req_termresponse(void)
3167 {
3168     if (crv_status == CRV_GET
3169 	    && cur_tmode == TMODE_RAW
3170 	    && starting == 0
3171 	    && termcap_active
3172 	    && p_ek
3173 # ifdef UNIX
3174 	    && isatty(1)
3175 	    && isatty(read_cmd_fd)
3176 # endif
3177 	    && *T_CRV != NUL)
3178     {
3179 	LOG_TR("Sending CRV");
3180 	out_str(T_CRV);
3181 	crv_status = CRV_SENT;
3182 	/* check for the characters now, otherwise they might be eaten by
3183 	 * get_keystroke() */
3184 	out_flush();
3185 	(void)vpeekc_nomap();
3186     }
3187 }
3188 
3189 # if defined(FEAT_MBYTE) || defined(PROTO)
3190 /*
3191  * Check how the terminal treats ambiguous character width (UAX #11).
3192  * First, we move the cursor to (1, 0) and print a test ambiguous character
3193  * \u25bd (WHITE DOWN-POINTING TRIANGLE) and query current cursor position.
3194  * If the terminal treats \u25bd as single width, the position is (1, 1),
3195  * or if it is treated as double width, that will be (1, 2).
3196  * This function has the side effect that changes cursor position, so
3197  * it must be called immediately after entering termcap mode.
3198  */
3199     void
3200 may_req_ambiguous_char_width(void)
3201 {
3202     if (u7_status == U7_GET
3203 	    && cur_tmode == TMODE_RAW
3204 	    && termcap_active
3205 	    && p_ek
3206 #  ifdef UNIX
3207 	    && isatty(1)
3208 	    && isatty(read_cmd_fd)
3209 #  endif
3210 	    && *T_U7 != NUL
3211 	    && !option_was_set((char_u *)"ambiwidth"))
3212     {
3213 	 char_u	buf[16];
3214 
3215 	 LOG_TR("Sending U7 request");
3216 	 /* Do this in the second row.  In the first row the returned sequence
3217 	  * may be CSI 1;2R, which is the same as <S-F3>. */
3218 	 term_windgoto(1, 0);
3219 	 buf[mb_char2bytes(0x25bd, buf)] = 0;
3220 	 out_str(buf);
3221 	 out_str(T_U7);
3222 	 u7_status = U7_SENT;
3223 	 out_flush();
3224 	 term_windgoto(1, 0);
3225 	 out_str((char_u *)"  ");
3226 	 term_windgoto(0, 0);
3227 	 /* check for the characters now, otherwise they might be eaten by
3228 	  * get_keystroke() */
3229 	 out_flush();
3230 	 (void)vpeekc_nomap();
3231     }
3232 }
3233 # endif
3234 
3235 #if defined(FEAT_TERMRESPONSE) || defined(PROTO)
3236 /*
3237  * Similar to requesting the version string: Request the terminal background
3238  * color when it is the right moment.
3239  */
3240     void
3241 may_req_bg_color(void)
3242 {
3243     if (rbg_status == RBG_GET
3244 	    && cur_tmode == TMODE_RAW
3245 	    && termcap_active
3246 	    && p_ek
3247 #  ifdef UNIX
3248 	    && isatty(1)
3249 	    && isatty(read_cmd_fd)
3250 #  endif
3251 	    && *T_RBG != NUL
3252 	    && !option_was_set((char_u *)"bg"))
3253     {
3254 	LOG_TR("Sending BG request");
3255 	out_str(T_RBG);
3256 	rbg_status = RBG_SENT;
3257 	/* check for the characters now, otherwise they might be eaten by
3258 	 * get_keystroke() */
3259 	out_flush();
3260 	(void)vpeekc_nomap();
3261     }
3262 }
3263 # endif
3264 
3265 # ifdef DEBUG_TERMRESPONSE
3266     static void
3267 log_tr(char *msg)
3268 {
3269     static FILE *fd_tr = NULL;
3270     static proftime_T start;
3271     proftime_T now;
3272 
3273     if (fd_tr == NULL)
3274     {
3275 	fd_tr = fopen("termresponse.log", "w");
3276 	profile_start(&start);
3277     }
3278     now = start;
3279     profile_end(&now);
3280     fprintf(fd_tr, "%s: %s %s\n",
3281 	    profile_msg(&now),
3282 	    must_redraw == NOT_VALID ? "NV"
3283 					 : must_redraw == CLEAR ? "CL" : "  ",
3284 	    msg);
3285 }
3286 # endif
3287 #endif
3288 
3289 /*
3290  * Return TRUE when saving and restoring the screen.
3291  */
3292     int
3293 swapping_screen(void)
3294 {
3295     return (full_screen && *T_TI != NUL);
3296 }
3297 
3298 #ifdef FEAT_MOUSE
3299 /*
3300  * setmouse() - switch mouse on/off depending on current mode and 'mouse'
3301  */
3302     void
3303 setmouse(void)
3304 {
3305 # ifdef FEAT_MOUSE_TTY
3306     int	    checkfor;
3307 # endif
3308 
3309 # ifdef FEAT_MOUSESHAPE
3310     update_mouseshape(-1);
3311 # endif
3312 
3313 # ifdef FEAT_MOUSE_TTY /* Should be outside proc, but may break MOUSESHAPE */
3314 #  ifdef FEAT_GUI
3315     /* In the GUI the mouse is always enabled. */
3316     if (gui.in_use)
3317 	return;
3318 #  endif
3319     /* be quick when mouse is off */
3320     if (*p_mouse == NUL || has_mouse_termcode == 0)
3321 	return;
3322 
3323     /* don't switch mouse on when not in raw mode (Ex mode) */
3324     if (cur_tmode != TMODE_RAW)
3325     {
3326 	mch_setmouse(FALSE);
3327 	return;
3328     }
3329 
3330     if (VIsual_active)
3331 	checkfor = MOUSE_VISUAL;
3332     else if (State == HITRETURN || State == ASKMORE || State == SETWSIZE)
3333 	checkfor = MOUSE_RETURN;
3334     else if (State & INSERT)
3335 	checkfor = MOUSE_INSERT;
3336     else if (State & CMDLINE)
3337 	checkfor = MOUSE_COMMAND;
3338     else if (State == CONFIRM || State == EXTERNCMD)
3339 	checkfor = ' '; /* don't use mouse for ":confirm" or ":!cmd" */
3340     else
3341 	checkfor = MOUSE_NORMAL;    /* assume normal mode */
3342 
3343     if (mouse_has(checkfor))
3344 	mch_setmouse(TRUE);
3345     else
3346 	mch_setmouse(FALSE);
3347 # endif
3348 }
3349 
3350 /*
3351  * Return TRUE if
3352  * - "c" is in 'mouse', or
3353  * - 'a' is in 'mouse' and "c" is in MOUSE_A, or
3354  * - the current buffer is a help file and 'h' is in 'mouse' and we are in a
3355  *   normal editing mode (not at hit-return message).
3356  */
3357     int
3358 mouse_has(int c)
3359 {
3360     char_u	*p;
3361 
3362     for (p = p_mouse; *p; ++p)
3363 	switch (*p)
3364 	{
3365 	    case 'a': if (vim_strchr((char_u *)MOUSE_A, c) != NULL)
3366 			  return TRUE;
3367 		      break;
3368 	    case MOUSE_HELP: if (c != MOUSE_RETURN && curbuf->b_help)
3369 				 return TRUE;
3370 			     break;
3371 	    default: if (c == *p) return TRUE; break;
3372 	}
3373     return FALSE;
3374 }
3375 
3376 /*
3377  * Return TRUE when 'mousemodel' is set to "popup" or "popup_setpos".
3378  */
3379     int
3380 mouse_model_popup(void)
3381 {
3382     return (p_mousem[0] == 'p');
3383 }
3384 #endif
3385 
3386 /*
3387  * By outputting the 'cursor very visible' termcap code, for some windowed
3388  * terminals this makes the screen scrolled to the correct position.
3389  * Used when starting Vim or returning from a shell.
3390  */
3391     void
3392 scroll_start(void)
3393 {
3394     if (*T_VS != NUL)
3395     {
3396 	out_str(T_VS);
3397 	out_str(T_VE);
3398 	screen_start();			/* don't know where cursor is now */
3399     }
3400 }
3401 
3402 static int cursor_is_off = FALSE;
3403 
3404 /*
3405  * Enable the cursor.
3406  */
3407     void
3408 cursor_on(void)
3409 {
3410     if (cursor_is_off)
3411     {
3412 	out_str(T_VE);
3413 	cursor_is_off = FALSE;
3414     }
3415 }
3416 
3417 /*
3418  * Disable the cursor.
3419  */
3420     void
3421 cursor_off(void)
3422 {
3423     if (full_screen)
3424     {
3425 	if (!cursor_is_off)
3426 	    out_str(T_VI);	    /* disable cursor */
3427 	cursor_is_off = TRUE;
3428     }
3429 }
3430 
3431 #if defined(CURSOR_SHAPE) || defined(PROTO)
3432 /*
3433  * Set cursor shape to match Insert or Replace mode.
3434  */
3435     void
3436 term_cursor_shape(void)
3437 {
3438     static int showing_mode = NORMAL;
3439     char_u *p;
3440 
3441     /* Only do something when redrawing the screen and we can restore the
3442      * mode. */
3443     if (!full_screen || *T_CEI == NUL)
3444 	return;
3445 
3446     if ((State & REPLACE) == REPLACE)
3447     {
3448 	if (showing_mode != REPLACE)
3449 	{
3450 	    if (*T_CSR != NUL)
3451 		p = T_CSR;	/* Replace mode cursor */
3452 	    else
3453 		p = T_CSI;	/* fall back to Insert mode cursor */
3454 	    if (*p != NUL)
3455 	    {
3456 		out_str(p);
3457 		showing_mode = REPLACE;
3458 	    }
3459 	}
3460     }
3461     else if (State & INSERT)
3462     {
3463 	if (showing_mode != INSERT && *T_CSI != NUL)
3464 	{
3465 	    out_str(T_CSI);	    /* Insert mode cursor */
3466 	    showing_mode = INSERT;
3467 	}
3468     }
3469     else if (showing_mode != NORMAL)
3470     {
3471 	out_str(T_CEI);		    /* non-Insert mode cursor */
3472 	showing_mode = NORMAL;
3473     }
3474 }
3475 #endif
3476 
3477 /*
3478  * Set scrolling region for window 'wp'.
3479  * The region starts 'off' lines from the start of the window.
3480  * Also set the vertical scroll region for a vertically split window.  Always
3481  * the full width of the window, excluding the vertical separator.
3482  */
3483     void
3484 scroll_region_set(win_T *wp, int off)
3485 {
3486     OUT_STR(tgoto((char *)T_CS, W_WINROW(wp) + wp->w_height - 1,
3487 							 W_WINROW(wp) + off));
3488 #ifdef FEAT_WINDOWS
3489     if (*T_CSV != NUL && wp->w_width != Columns)
3490 	OUT_STR(tgoto((char *)T_CSV, W_WINCOL(wp) + wp->w_width - 1,
3491 							       W_WINCOL(wp)));
3492 #endif
3493     screen_start();		    /* don't know where cursor is now */
3494 }
3495 
3496 /*
3497  * Reset scrolling region to the whole screen.
3498  */
3499     void
3500 scroll_region_reset(void)
3501 {
3502     OUT_STR(tgoto((char *)T_CS, (int)Rows - 1, 0));
3503 #ifdef FEAT_WINDOWS
3504     if (*T_CSV != NUL)
3505 	OUT_STR(tgoto((char *)T_CSV, (int)Columns - 1, 0));
3506 #endif
3507     screen_start();		    /* don't know where cursor is now */
3508 }
3509 
3510 
3511 /*
3512  * List of terminal codes that are currently recognized.
3513  */
3514 
3515 static struct termcode
3516 {
3517     char_u  name[2];	    /* termcap name of entry */
3518     char_u  *code;	    /* terminal code (in allocated memory) */
3519     int	    len;	    /* STRLEN(code) */
3520     int	    modlen;	    /* length of part before ";*~". */
3521 } *termcodes = NULL;
3522 
3523 static int  tc_max_len = 0; /* number of entries that termcodes[] can hold */
3524 static int  tc_len = 0;	    /* current number of entries in termcodes[] */
3525 
3526 static int termcode_star(char_u *code, int len);
3527 
3528     void
3529 clear_termcodes(void)
3530 {
3531     while (tc_len > 0)
3532 	vim_free(termcodes[--tc_len].code);
3533     vim_free(termcodes);
3534     termcodes = NULL;
3535     tc_max_len = 0;
3536 
3537 #ifdef HAVE_TGETENT
3538     BC = (char *)empty_option;
3539     UP = (char *)empty_option;
3540     PC = NUL;			/* set pad character to NUL */
3541     ospeed = 0;
3542 #endif
3543 
3544     need_gather = TRUE;		/* need to fill termleader[] */
3545 }
3546 
3547 #define ATC_FROM_TERM 55
3548 
3549 /*
3550  * Add a new entry to the list of terminal codes.
3551  * The list is kept alphabetical for ":set termcap"
3552  * "flags" is TRUE when replacing 7-bit by 8-bit controls is desired.
3553  * "flags" can also be ATC_FROM_TERM for got_code_from_term().
3554  */
3555     void
3556 add_termcode(char_u *name, char_u *string, int flags)
3557 {
3558     struct termcode *new_tc;
3559     int		    i, j;
3560     char_u	    *s;
3561     int		    len;
3562 
3563     if (string == NULL || *string == NUL)
3564     {
3565 	del_termcode(name);
3566 	return;
3567     }
3568 
3569 #if defined(WIN3264) && !defined(FEAT_GUI)
3570     s = vim_strnsave(string, (int)STRLEN(string) + 1);
3571 #else
3572     s = vim_strsave(string);
3573 #endif
3574     if (s == NULL)
3575 	return;
3576 
3577     /* Change leading <Esc>[ to CSI, change <Esc>O to <M-O>. */
3578     if (flags != 0 && flags != ATC_FROM_TERM && term_7to8bit(string) != 0)
3579     {
3580 	STRMOVE(s, s + 1);
3581 	s[0] = term_7to8bit(string);
3582     }
3583 
3584 #if defined(WIN3264) && !defined(FEAT_GUI)
3585     if (s[0] == K_NUL)
3586     {
3587 	STRMOVE(s + 1, s);
3588 	s[1] = 3;
3589     }
3590 #endif
3591 
3592     len = (int)STRLEN(s);
3593 
3594     need_gather = TRUE;		/* need to fill termleader[] */
3595 
3596     /*
3597      * need to make space for more entries
3598      */
3599     if (tc_len == tc_max_len)
3600     {
3601 	tc_max_len += 20;
3602 	new_tc = (struct termcode *)alloc(
3603 			    (unsigned)(tc_max_len * sizeof(struct termcode)));
3604 	if (new_tc == NULL)
3605 	{
3606 	    tc_max_len -= 20;
3607 	    return;
3608 	}
3609 	for (i = 0; i < tc_len; ++i)
3610 	    new_tc[i] = termcodes[i];
3611 	vim_free(termcodes);
3612 	termcodes = new_tc;
3613     }
3614 
3615     /*
3616      * Look for existing entry with the same name, it is replaced.
3617      * Look for an existing entry that is alphabetical higher, the new entry
3618      * is inserted in front of it.
3619      */
3620     for (i = 0; i < tc_len; ++i)
3621     {
3622 	if (termcodes[i].name[0] < name[0])
3623 	    continue;
3624 	if (termcodes[i].name[0] == name[0])
3625 	{
3626 	    if (termcodes[i].name[1] < name[1])
3627 		continue;
3628 	    /*
3629 	     * Exact match: May replace old code.
3630 	     */
3631 	    if (termcodes[i].name[1] == name[1])
3632 	    {
3633 		if (flags == ATC_FROM_TERM && (j = termcode_star(
3634 				    termcodes[i].code, termcodes[i].len)) > 0)
3635 		{
3636 		    /* Don't replace ESC[123;*X or ESC O*X with another when
3637 		     * invoked from got_code_from_term(). */
3638 		    if (len == termcodes[i].len - j
3639 			    && STRNCMP(s, termcodes[i].code, len - 1) == 0
3640 			    && s[len - 1]
3641 				   == termcodes[i].code[termcodes[i].len - 1])
3642 		    {
3643 			/* They are equal but for the ";*": don't add it. */
3644 			vim_free(s);
3645 			return;
3646 		    }
3647 		}
3648 		else
3649 		{
3650 		    /* Replace old code. */
3651 		    vim_free(termcodes[i].code);
3652 		    --tc_len;
3653 		    break;
3654 		}
3655 	    }
3656 	}
3657 	/*
3658 	 * Found alphabetical larger entry, move rest to insert new entry
3659 	 */
3660 	for (j = tc_len; j > i; --j)
3661 	    termcodes[j] = termcodes[j - 1];
3662 	break;
3663     }
3664 
3665     termcodes[i].name[0] = name[0];
3666     termcodes[i].name[1] = name[1];
3667     termcodes[i].code = s;
3668     termcodes[i].len = len;
3669 
3670     /* For xterm we recognize special codes like "ESC[42;*X" and "ESC O*X" that
3671      * accept modifiers. */
3672     termcodes[i].modlen = 0;
3673     j = termcode_star(s, len);
3674     if (j > 0)
3675 	termcodes[i].modlen = len - 1 - j;
3676     ++tc_len;
3677 }
3678 
3679 /*
3680  * Check termcode "code[len]" for ending in ;*X, <Esc>O*X or <M-O>*X.
3681  * The "X" can be any character.
3682  * Return 0 if not found, 2 for ;*X and 1 for O*X and <M-O>*X.
3683  */
3684     static int
3685 termcode_star(char_u *code, int len)
3686 {
3687     /* Shortest is <M-O>*X.  With ; shortest is <CSI>1;*X */
3688     if (len >= 3 && code[len - 2] == '*')
3689     {
3690 	if (len >= 5 && code[len - 3] == ';')
3691 	    return 2;
3692 	if ((len >= 4 && code[len - 3] == 'O') || code[len - 3] == 'O' + 128)
3693 	    return 1;
3694     }
3695     return 0;
3696 }
3697 
3698     char_u  *
3699 find_termcode(char_u *name)
3700 {
3701     int	    i;
3702 
3703     for (i = 0; i < tc_len; ++i)
3704 	if (termcodes[i].name[0] == name[0] && termcodes[i].name[1] == name[1])
3705 	    return termcodes[i].code;
3706     return NULL;
3707 }
3708 
3709 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
3710     char_u *
3711 get_termcode(int i)
3712 {
3713     if (i >= tc_len)
3714 	return NULL;
3715     return &termcodes[i].name[0];
3716 }
3717 #endif
3718 
3719     void
3720 del_termcode(char_u *name)
3721 {
3722     int	    i;
3723 
3724     if (termcodes == NULL)	/* nothing there yet */
3725 	return;
3726 
3727     need_gather = TRUE;		/* need to fill termleader[] */
3728 
3729     for (i = 0; i < tc_len; ++i)
3730 	if (termcodes[i].name[0] == name[0] && termcodes[i].name[1] == name[1])
3731 	{
3732 	    del_termcode_idx(i);
3733 	    return;
3734 	}
3735     /* not found. Give error message? */
3736 }
3737 
3738     static void
3739 del_termcode_idx(int idx)
3740 {
3741     int		i;
3742 
3743     vim_free(termcodes[idx].code);
3744     --tc_len;
3745     for (i = idx; i < tc_len; ++i)
3746 	termcodes[i] = termcodes[i + 1];
3747 }
3748 
3749 #ifdef FEAT_TERMRESPONSE
3750 /*
3751  * Called when detected that the terminal sends 8-bit codes.
3752  * Convert all 7-bit codes to their 8-bit equivalent.
3753  */
3754     static void
3755 switch_to_8bit(void)
3756 {
3757     int		i;
3758     int		c;
3759 
3760     /* Only need to do something when not already using 8-bit codes. */
3761     if (!term_is_8bit(T_NAME))
3762     {
3763 	for (i = 0; i < tc_len; ++i)
3764 	{
3765 	    c = term_7to8bit(termcodes[i].code);
3766 	    if (c != 0)
3767 	    {
3768 		STRMOVE(termcodes[i].code + 1, termcodes[i].code + 2);
3769 		termcodes[i].code[0] = c;
3770 	    }
3771 	}
3772 	need_gather = TRUE;		/* need to fill termleader[] */
3773     }
3774     detected_8bit = TRUE;
3775     LOG_TR("Switching to 8 bit");
3776 }
3777 #endif
3778 
3779 #ifdef CHECK_DOUBLE_CLICK
3780 static linenr_T orig_topline = 0;
3781 # ifdef FEAT_DIFF
3782 static int orig_topfill = 0;
3783 # endif
3784 #endif
3785 #if (defined(FEAT_WINDOWS) && defined(CHECK_DOUBLE_CLICK)) || defined(PROTO)
3786 /*
3787  * Checking for double clicks ourselves.
3788  * "orig_topline" is used to avoid detecting a double-click when the window
3789  * contents scrolled (e.g., when 'scrolloff' is non-zero).
3790  */
3791 /*
3792  * Set orig_topline.  Used when jumping to another window, so that a double
3793  * click still works.
3794  */
3795     void
3796 set_mouse_topline(win_T *wp)
3797 {
3798     orig_topline = wp->w_topline;
3799 # ifdef FEAT_DIFF
3800     orig_topfill = wp->w_topfill;
3801 # endif
3802 }
3803 #endif
3804 
3805 /*
3806  * Check if typebuf.tb_buf[] contains a terminal key code.
3807  * Check from typebuf.tb_buf[typebuf.tb_off] to typebuf.tb_buf[typebuf.tb_off
3808  * + max_offset].
3809  * Return 0 for no match, -1 for partial match, > 0 for full match.
3810  * Return KEYLEN_REMOVED when a key code was deleted.
3811  * With a match, the match is removed, the replacement code is inserted in
3812  * typebuf.tb_buf[] and the number of characters in typebuf.tb_buf[] is
3813  * returned.
3814  * When "buf" is not NULL, buf[bufsize] is used instead of typebuf.tb_buf[].
3815  * "buflen" is then the length of the string in buf[] and is updated for
3816  * inserts and deletes.
3817  */
3818     int
3819 check_termcode(
3820     int		max_offset,
3821     char_u	*buf,
3822     int		bufsize,
3823     int		*buflen)
3824 {
3825     char_u	*tp;
3826     char_u	*p;
3827     int		slen = 0;	/* init for GCC */
3828     int		modslen;
3829     int		len;
3830     int		retval = 0;
3831     int		offset;
3832     char_u	key_name[2];
3833     int		modifiers;
3834     int		key;
3835     int		new_slen;
3836     int		extra;
3837     char_u	string[MAX_KEY_CODE_LEN + 1];
3838     int		i, j;
3839     int		idx = 0;
3840 #ifdef FEAT_MOUSE
3841 # if !defined(UNIX) || defined(FEAT_MOUSE_XTERM) || defined(FEAT_GUI) \
3842     || defined(FEAT_MOUSE_GPM) || defined(FEAT_SYSMOUSE)
3843     char_u	bytes[6];
3844     int		num_bytes;
3845 # endif
3846     int		mouse_code = 0;	    /* init for GCC */
3847     int		is_click, is_drag;
3848     int		wheel_code = 0;
3849     int		current_button;
3850     static int	held_button = MOUSE_RELEASE;
3851     static int	orig_num_clicks = 1;
3852     static int	orig_mouse_code = 0x0;
3853 # ifdef CHECK_DOUBLE_CLICK
3854     static int	orig_mouse_col = 0;
3855     static int	orig_mouse_row = 0;
3856     static struct timeval  orig_mouse_time = {0, 0};
3857 					/* time of previous mouse click */
3858     struct timeval  mouse_time;		/* time of current mouse click */
3859     long	timediff;		/* elapsed time in msec */
3860 # endif
3861 #endif
3862     int		cpo_koffset;
3863 #ifdef FEAT_MOUSE_GPM
3864     extern int	gpm_flag; /* gpm library variable */
3865 #endif
3866 
3867     cpo_koffset = (vim_strchr(p_cpo, CPO_KOFFSET) != NULL);
3868 
3869     /*
3870      * Speed up the checks for terminal codes by gathering all first bytes
3871      * used in termleader[].  Often this is just a single <Esc>.
3872      */
3873     if (need_gather)
3874 	gather_termleader();
3875 
3876     /*
3877      * Check at several positions in typebuf.tb_buf[], to catch something like
3878      * "x<Up>" that can be mapped. Stop at max_offset, because characters
3879      * after that cannot be used for mapping, and with @r commands
3880      * typebuf.tb_buf[] can become very long.
3881      * This is used often, KEEP IT FAST!
3882      */
3883     for (offset = 0; offset < max_offset; ++offset)
3884     {
3885 	if (buf == NULL)
3886 	{
3887 	    if (offset >= typebuf.tb_len)
3888 		break;
3889 	    tp = typebuf.tb_buf + typebuf.tb_off + offset;
3890 	    len = typebuf.tb_len - offset;	/* length of the input */
3891 	}
3892 	else
3893 	{
3894 	    if (offset >= *buflen)
3895 		break;
3896 	    tp = buf + offset;
3897 	    len = *buflen - offset;
3898 	}
3899 
3900 	/*
3901 	 * Don't check characters after K_SPECIAL, those are already
3902 	 * translated terminal chars (avoid translating ~@^Hx).
3903 	 */
3904 	if (*tp == K_SPECIAL)
3905 	{
3906 	    offset += 2;	/* there are always 2 extra characters */
3907 	    continue;
3908 	}
3909 
3910 	/*
3911 	 * Skip this position if the character does not appear as the first
3912 	 * character in term_strings. This speeds up a lot, since most
3913 	 * termcodes start with the same character (ESC or CSI).
3914 	 */
3915 	i = *tp;
3916 	for (p = termleader; *p && *p != i; ++p)
3917 	    ;
3918 	if (*p == NUL)
3919 	    continue;
3920 
3921 	/*
3922 	 * Skip this position if p_ek is not set and tp[0] is an ESC and we
3923 	 * are in Insert mode.
3924 	 */
3925 	if (*tp == ESC && !p_ek && (State & INSERT))
3926 	    continue;
3927 
3928 	key_name[0] = NUL;	/* no key name found yet */
3929 	key_name[1] = NUL;	/* no key name found yet */
3930 	modifiers = 0;		/* no modifiers yet */
3931 
3932 #ifdef FEAT_GUI
3933 	if (gui.in_use)
3934 	{
3935 	    /*
3936 	     * GUI special key codes are all of the form [CSI xx].
3937 	     */
3938 	    if (*tp == CSI)	    /* Special key from GUI */
3939 	    {
3940 		if (len < 3)
3941 		    return -1;	    /* Shouldn't happen */
3942 		slen = 3;
3943 		key_name[0] = tp[1];
3944 		key_name[1] = tp[2];
3945 	    }
3946 	}
3947 	else
3948 #endif /* FEAT_GUI */
3949 	{
3950 	    for (idx = 0; idx < tc_len; ++idx)
3951 	    {
3952 		/*
3953 		 * Ignore the entry if we are not at the start of
3954 		 * typebuf.tb_buf[]
3955 		 * and there are not enough characters to make a match.
3956 		 * But only when the 'K' flag is in 'cpoptions'.
3957 		 */
3958 		slen = termcodes[idx].len;
3959 		if (cpo_koffset && offset && len < slen)
3960 		    continue;
3961 		if (STRNCMP(termcodes[idx].code, tp,
3962 				     (size_t)(slen > len ? len : slen)) == 0)
3963 		{
3964 		    if (len < slen)		/* got a partial sequence */
3965 			return -1;		/* need to get more chars */
3966 
3967 		    /*
3968 		     * When found a keypad key, check if there is another key
3969 		     * that matches and use that one.  This makes <Home> to be
3970 		     * found instead of <kHome> when they produce the same
3971 		     * key code.
3972 		     */
3973 		    if (termcodes[idx].name[0] == 'K'
3974 				       && VIM_ISDIGIT(termcodes[idx].name[1]))
3975 		    {
3976 			for (j = idx + 1; j < tc_len; ++j)
3977 			    if (termcodes[j].len == slen &&
3978 				    STRNCMP(termcodes[idx].code,
3979 					    termcodes[j].code, slen) == 0)
3980 			    {
3981 				idx = j;
3982 				break;
3983 			    }
3984 		    }
3985 
3986 		    key_name[0] = termcodes[idx].name[0];
3987 		    key_name[1] = termcodes[idx].name[1];
3988 		    break;
3989 		}
3990 
3991 		/*
3992 		 * Check for code with modifier, like xterm uses:
3993 		 * <Esc>[123;*X  (modslen == slen - 3)
3994 		 * Also <Esc>O*X and <M-O>*X (modslen == slen - 2).
3995 		 * When there is a modifier the * matches a number.
3996 		 * When there is no modifier the ;* or * is omitted.
3997 		 */
3998 		if (termcodes[idx].modlen > 0)
3999 		{
4000 		    modslen = termcodes[idx].modlen;
4001 		    if (cpo_koffset && offset && len < modslen)
4002 			continue;
4003 		    if (STRNCMP(termcodes[idx].code, tp,
4004 				(size_t)(modslen > len ? len : modslen)) == 0)
4005 		    {
4006 			int	    n;
4007 
4008 			if (len <= modslen)	/* got a partial sequence */
4009 			    return -1;		/* need to get more chars */
4010 
4011 			if (tp[modslen] == termcodes[idx].code[slen - 1])
4012 			    slen = modslen + 1;	/* no modifiers */
4013 			else if (tp[modslen] != ';' && modslen == slen - 3)
4014 			    continue;	/* no match */
4015 			else
4016 			{
4017 			    /* Skip over the digits, the final char must
4018 			     * follow. */
4019 			    for (j = slen - 2; j < len && isdigit(tp[j]); ++j)
4020 				;
4021 			    ++j;
4022 			    if (len < j)	/* got a partial sequence */
4023 				return -1;	/* need to get more chars */
4024 			    if (tp[j - 1] != termcodes[idx].code[slen - 1])
4025 				continue;	/* no match */
4026 
4027 			    /* Match!  Convert modifier bits. */
4028 			    n = atoi((char *)tp + slen - 2) - 1;
4029 			    if (n & 1)
4030 				modifiers |= MOD_MASK_SHIFT;
4031 			    if (n & 2)
4032 				modifiers |= MOD_MASK_ALT;
4033 			    if (n & 4)
4034 				modifiers |= MOD_MASK_CTRL;
4035 			    if (n & 8)
4036 				modifiers |= MOD_MASK_META;
4037 
4038 			    slen = j;
4039 			}
4040 			key_name[0] = termcodes[idx].name[0];
4041 			key_name[1] = termcodes[idx].name[1];
4042 			break;
4043 		    }
4044 		}
4045 	    }
4046 	}
4047 
4048 #ifdef FEAT_TERMRESPONSE
4049 	if (key_name[0] == NUL
4050 	    /* Mouse codes of DEC, pterm, and URXVT start with <ESC>[.  When
4051 	     * detecting the start of these mouse codes they might as well be
4052 	     * another key code or terminal response. */
4053 # ifdef FEAT_MOUSE_DEC
4054 	    || key_name[0] == KS_DEC_MOUSE
4055 # endif
4056 # ifdef FEAT_MOUSE_PTERM
4057 	    || key_name[0] == KS_PTERM_MOUSE
4058 # endif
4059 # ifdef FEAT_MOUSE_URXVT
4060 	    || key_name[0] == KS_URXVT_MOUSE
4061 # endif
4062 	   )
4063 	{
4064 	    /* Check for some responses from the terminal starting with
4065 	     * "<Esc>[" or CSI:
4066 	     *
4067 	     * - Xterm version string: <Esc>[>{x};{vers};{y}c
4068 	     *   Also eat other possible responses to t_RV, rxvt returns
4069 	     *   "<Esc>[?1;2c". Also accept CSI instead of <Esc>[.
4070 	     *   mrxvt has been reported to have "+" in the version. Assume
4071 	     *   the escape sequence ends with a letter or one of "{|}~".
4072 	     *
4073 	     * - Cursor position report: <Esc>[{row};{col}R
4074 	     *   The final byte must be 'R'. It is used for checking the
4075 	     *   ambiguous-width character state.
4076 	     */
4077 	    char_u *argp = tp[0] == ESC ? tp + 2 : tp + 1;
4078 
4079 	    if ((*T_CRV != NUL || *T_U7 != NUL)
4080 			&& ((tp[0] == ESC && len >= 3 && tp[1] == '[')
4081 			    || (tp[0] == CSI && len >= 2))
4082 			&& (VIM_ISDIGIT(*argp) || *argp == '>' || *argp == '?'))
4083 	    {
4084 #ifdef FEAT_MBYTE
4085 		int col;
4086 		int row_char = NUL;
4087 #endif
4088 		j = 0;
4089 		extra = 0;
4090 		for (i = 2 + (tp[0] != CSI); i < len
4091 				&& !(tp[i] >= '{' && tp[i] <= '~')
4092 				&& !ASCII_ISALPHA(tp[i]); ++i)
4093 		    if (tp[i] == ';' && ++j == 1)
4094 		    {
4095 			extra = i + 1;
4096 #ifdef FEAT_MBYTE
4097 			row_char = tp[i - 1];
4098 #endif
4099 		    }
4100 		if (i == len)
4101 		{
4102 		    LOG_TR("Not enough characters for CRV");
4103 		    return -1;
4104 		}
4105 #ifdef FEAT_MBYTE
4106 		if (extra > 0)
4107 		    col = atoi((char *)tp + extra);
4108 		else
4109 		    col = 0;
4110 
4111 		/* Eat it when it has 2 arguments and ends in 'R'. Also when
4112 		 * u7_status is not "sent", it may be from a previous Vim that
4113 		 * just exited.  But not for <S-F3>, it sends something
4114 		 * similar, check for row and column to make sense. */
4115 		if (j == 1 && tp[i] == 'R')
4116 		{
4117 		    if (row_char == '2' && col >= 2)
4118 		    {
4119 			char *aw = NULL;
4120 
4121 			LOG_TR("Received U7 status");
4122 			u7_status = U7_GOT;
4123 # ifdef FEAT_AUTOCMD
4124 			did_cursorhold = TRUE;
4125 # endif
4126 			if (col == 2)
4127 			    aw = "single";
4128 			else if (col == 3)
4129 			    aw = "double";
4130 			if (aw != NULL && STRCMP(aw, p_ambw) != 0)
4131 			{
4132 			    /* Setting the option causes a screen redraw. Do
4133 			     * that right away if possible, keeping any
4134 			     * messages. */
4135 			    set_option_value((char_u *)"ambw", 0L,
4136 					     (char_u *)aw, 0);
4137 # ifdef DEBUG_TERMRESPONSE
4138 			    {
4139 				char buf[100];
4140 				int  r = redraw_asap(CLEAR);
4141 
4142 				sprintf(buf,
4143 					"set 'ambiwidth', redraw_asap(): %d",
4144 					r);
4145 				log_tr(buf);
4146 			    }
4147 # else
4148 			    redraw_asap(CLEAR);
4149 # endif
4150 			}
4151 		    }
4152 		    key_name[0] = (int)KS_EXTRA;
4153 		    key_name[1] = (int)KE_IGNORE;
4154 		    slen = i + 1;
4155 		}
4156 		else
4157 #endif
4158 		/* eat it when at least one digit and ending in 'c' */
4159 		if (*T_CRV != NUL && i > 2 + (tp[0] != CSI) && tp[i] == 'c')
4160 		{
4161 		    LOG_TR("Received CRV");
4162 		    crv_status = CRV_GOT;
4163 # ifdef FEAT_AUTOCMD
4164 		    did_cursorhold = TRUE;
4165 # endif
4166 
4167 		    /* If this code starts with CSI, you can bet that the
4168 		     * terminal uses 8-bit codes. */
4169 		    if (tp[0] == CSI)
4170 			switch_to_8bit();
4171 
4172 		    /* rxvt sends its version number: "20703" is 2.7.3.
4173 		     * Ignore it for when the user has set 'term' to xterm,
4174 		     * even though it's an rxvt. */
4175 		    if (extra > 0)
4176 			extra = atoi((char *)tp + extra);
4177 		    if (extra > 20000)
4178 			extra = 0;
4179 
4180 		    if (tp[1 + (tp[0] != CSI)] == '>' && j == 2)
4181 		    {
4182 			/* Only set 'ttymouse' automatically if it was not set
4183 			 * by the user already. */
4184 			if (!option_was_set((char_u *)"ttym"))
4185 			{
4186 # ifdef TTYM_SGR
4187 			    if (extra >= 277)
4188 				set_option_value((char_u *)"ttym", 0L,
4189 							  (char_u *)"sgr", 0);
4190 			    else
4191 # endif
4192 			    /* if xterm version >= 95 use mouse dragging */
4193 			    if (extra >= 95)
4194 				set_option_value((char_u *)"ttym", 0L,
4195 						       (char_u *)"xterm2", 0);
4196 			}
4197 
4198 			/* if xterm version >= 141 try to get termcap codes */
4199 			if (extra >= 141)
4200 			{
4201 			    LOG_TR("Enable checking for XT codes");
4202 			    check_for_codes = TRUE;
4203 			    need_gather = TRUE;
4204 			    req_codes_from_term();
4205 			}
4206 		    }
4207 # ifdef FEAT_EVAL
4208 		    set_vim_var_string(VV_TERMRESPONSE, tp, i + 1);
4209 # endif
4210 # ifdef FEAT_AUTOCMD
4211 		    apply_autocmds(EVENT_TERMRESPONSE,
4212 						   NULL, NULL, FALSE, curbuf);
4213 # endif
4214 		    key_name[0] = (int)KS_EXTRA;
4215 		    key_name[1] = (int)KE_IGNORE;
4216 		    slen = i + 1;
4217 		}
4218 	    }
4219 
4220 	    /* Check for background color response from the terminal:
4221 	     *
4222 	     *       {lead}11;rgb:{rrrr}/{gggg}/{bbbb}{tail}
4223 	     *
4224 	     * {lead} can be <Esc>] or OSC
4225 	     * {tail} can be '\007', <Esc>\ or STERM.
4226 	     *
4227 	     * Consume any code that starts with "{lead}11;", it's also
4228 	     * possible that "rgba" is following.
4229 	     */
4230 	    else if (*T_RBG != NUL
4231 			&& ((tp[0] == ESC && len >= 2 && tp[1] == ']')
4232 			    || tp[0] == OSC))
4233 	    {
4234 		j = 1 + (tp[0] == ESC);
4235 		if (len >= j + 3 && (argp[0] != '1'
4236 					 || argp[1] != '1' || argp[2] != ';'))
4237 		  i = 0; /* no match */
4238 		else
4239 		  for (i = j; i < len; ++i)
4240 		    if (tp[i] == '\007' || (tp[0] == OSC ? tp[i] == STERM
4241 			: (tp[i] == ESC && i + 1 < len && tp[i + 1] == '\\')))
4242 		    {
4243 			if (i - j >= 21 && STRNCMP(tp + j + 3, "rgb:", 4) == 0
4244 			    && tp[j + 11] == '/' && tp[j + 16] == '/'
4245 			    && !option_was_set((char_u *)"bg"))
4246 			{/* TODO: don't set option when already the right value */
4247 			    LOG_TR("Received RBG");
4248 			    rbg_status = RBG_GOT;
4249 			    set_option_value((char_u *)"bg", 0L, (char_u *)(
4250 				    (3 * '6' < tp[j+7] + tp[j+12] + tp[j+17])
4251 				    ? "light" : "dark"), 0);
4252 			    reset_option_was_set((char_u *)"bg");
4253 			    redraw_asap(CLEAR);
4254 			}
4255 
4256 			/* got finished code: consume it */
4257 			key_name[0] = (int)KS_EXTRA;
4258 			key_name[1] = (int)KE_IGNORE;
4259 			slen = i + 1 + (tp[i] == ESC);
4260 			break;
4261 		    }
4262 		if (i == len)
4263 		{
4264 		    LOG_TR("not enough characters for RB");
4265 		    return -1;
4266 		}
4267 	    }
4268 
4269 	    /* Check for key code response from xterm:
4270 	     *
4271 	     * {lead}{flag}+r<hex bytes><{tail}
4272 	     *
4273 	     * {lead} can be <Esc>P or DCS
4274 	     * {flag} can be '0' or '1'
4275 	     * {tail} can be Esc>\ or STERM
4276 	     *
4277 	     * Consume any code that starts with "{lead}.+r".
4278 	     */
4279 	    else if (check_for_codes
4280 		    && ((tp[0] == ESC && len >= 2 && tp[1] == 'P')
4281 			|| tp[0] == DCS))
4282 	    {
4283 		j = 1 + (tp[0] == ESC);
4284 		if (len >= j + 3 && (argp[1] != '+' || argp[2] != 'r'))
4285 		  i = 0; /* no match */
4286 		else
4287 		  for (i = j; i < len; ++i)
4288 		    if ((tp[i] == ESC && i + 1 < len && tp[i + 1] == '\\')
4289 			    || tp[i] == STERM)
4290 		    {
4291 			if (i - j >= 3)
4292 			    got_code_from_term(tp + j, i);
4293 			key_name[0] = (int)KS_EXTRA;
4294 			key_name[1] = (int)KE_IGNORE;
4295 			slen = i + 1 + (tp[i] == ESC);
4296 			break;
4297 		    }
4298 
4299 		if (i == len)
4300 		{
4301 		    /* These codes arrive many together, each code can be
4302 		     * truncated at any point. */
4303 		    LOG_TR("not enough characters for XT");
4304 		    return -1;
4305 		}
4306 	    }
4307 	}
4308 #endif
4309 
4310 	if (key_name[0] == NUL)
4311 	    continue;	    /* No match at this position, try next one */
4312 
4313 	/* We only get here when we have a complete termcode match */
4314 
4315 #ifdef FEAT_MOUSE
4316 # ifdef FEAT_GUI
4317 	/*
4318 	 * Only in the GUI: Fetch the pointer coordinates of the scroll event
4319 	 * so that we know which window to scroll later.
4320 	 */
4321 	if (gui.in_use
4322 		&& key_name[0] == (int)KS_EXTRA
4323 		&& (key_name[1] == (int)KE_X1MOUSE
4324 		    || key_name[1] == (int)KE_X2MOUSE
4325 		    || key_name[1] == (int)KE_MOUSELEFT
4326 		    || key_name[1] == (int)KE_MOUSERIGHT
4327 		    || key_name[1] == (int)KE_MOUSEDOWN
4328 		    || key_name[1] == (int)KE_MOUSEUP))
4329 	{
4330 	    num_bytes = get_bytes_from_buf(tp + slen, bytes, 4);
4331 	    if (num_bytes == -1)	/* not enough coordinates */
4332 		return -1;
4333 	    mouse_col = 128 * (bytes[0] - ' ' - 1) + bytes[1] - ' ' - 1;
4334 	    mouse_row = 128 * (bytes[2] - ' ' - 1) + bytes[3] - ' ' - 1;
4335 	    slen += num_bytes;
4336 	}
4337 	else
4338 # endif
4339 	/*
4340 	 * If it is a mouse click, get the coordinates.
4341 	 */
4342 	if (key_name[0] == KS_MOUSE
4343 # ifdef FEAT_MOUSE_JSB
4344 		|| key_name[0] == KS_JSBTERM_MOUSE
4345 # endif
4346 # ifdef FEAT_MOUSE_NET
4347 		|| key_name[0] == KS_NETTERM_MOUSE
4348 # endif
4349 # ifdef FEAT_MOUSE_DEC
4350 		|| key_name[0] == KS_DEC_MOUSE
4351 # endif
4352 # ifdef FEAT_MOUSE_PTERM
4353 		|| key_name[0] == KS_PTERM_MOUSE
4354 # endif
4355 # ifdef FEAT_MOUSE_URXVT
4356 		|| key_name[0] == KS_URXVT_MOUSE
4357 # endif
4358 # ifdef FEAT_MOUSE_SGR
4359 		|| key_name[0] == KS_SGR_MOUSE
4360 # endif
4361 		)
4362 	{
4363 	    is_click = is_drag = FALSE;
4364 
4365 # if !defined(UNIX) || defined(FEAT_MOUSE_XTERM) || defined(FEAT_GUI) \
4366 	    || defined(FEAT_MOUSE_GPM) || defined(FEAT_SYSMOUSE)
4367 	    if (key_name[0] == (int)KS_MOUSE)
4368 	    {
4369 		/*
4370 		 * For xterm we get "<t_mouse>scr", where
4371 		 *  s == encoded button state:
4372 		 *	   0x20 = left button down
4373 		 *	   0x21 = middle button down
4374 		 *	   0x22 = right button down
4375 		 *	   0x23 = any button release
4376 		 *	   0x60 = button 4 down (scroll wheel down)
4377 		 *	   0x61 = button 5 down (scroll wheel up)
4378 		 *	add 0x04 for SHIFT
4379 		 *	add 0x08 for ALT
4380 		 *	add 0x10 for CTRL
4381 		 *	add 0x20 for mouse drag (0x40 is drag with left button)
4382 		 *  c == column + ' ' + 1 == column + 33
4383 		 *  r == row + ' ' + 1 == row + 33
4384 		 *
4385 		 * The coordinates are passed on through global variables.
4386 		 * Ugly, but this avoids trouble with mouse clicks at an
4387 		 * unexpected moment and allows for mapping them.
4388 		 */
4389 		for (;;)
4390 		{
4391 #ifdef FEAT_GUI
4392 		    if (gui.in_use)
4393 		    {
4394 			/* GUI uses more bits for columns > 223 */
4395 			num_bytes = get_bytes_from_buf(tp + slen, bytes, 5);
4396 			if (num_bytes == -1)	/* not enough coordinates */
4397 			    return -1;
4398 			mouse_code = bytes[0];
4399 			mouse_col = 128 * (bytes[1] - ' ' - 1)
4400 							 + bytes[2] - ' ' - 1;
4401 			mouse_row = 128 * (bytes[3] - ' ' - 1)
4402 							 + bytes[4] - ' ' - 1;
4403 		    }
4404 		    else
4405 #endif
4406 		    {
4407 			num_bytes = get_bytes_from_buf(tp + slen, bytes, 3);
4408 			if (num_bytes == -1)	/* not enough coordinates */
4409 			    return -1;
4410 			mouse_code = bytes[0];
4411 			mouse_col = bytes[1] - ' ' - 1;
4412 			mouse_row = bytes[2] - ' ' - 1;
4413 		    }
4414 		    slen += num_bytes;
4415 
4416 		    /* If the following bytes is also a mouse code and it has
4417 		     * the same code, dump this one and get the next.  This
4418 		     * makes dragging a whole lot faster. */
4419 #ifdef FEAT_GUI
4420 		    if (gui.in_use)
4421 			j = 3;
4422 		    else
4423 #endif
4424 			j = termcodes[idx].len;
4425 		    if (STRNCMP(tp, tp + slen, (size_t)j) == 0
4426 			    && tp[slen + j] == mouse_code
4427 			    && tp[slen + j + 1] != NUL
4428 			    && tp[slen + j + 2] != NUL
4429 #ifdef FEAT_GUI
4430 			    && (!gui.in_use
4431 				|| (tp[slen + j + 3] != NUL
4432 					&& tp[slen + j + 4] != NUL))
4433 #endif
4434 			    )
4435 			slen += j;
4436 		    else
4437 			break;
4438 		}
4439 	    }
4440 
4441 # if defined(FEAT_MOUSE_URXVT) || defined(FEAT_MOUSE_SGR)
4442 	    if (key_name[0] == KS_URXVT_MOUSE
4443 		|| key_name[0] == KS_SGR_MOUSE)
4444 	    {
4445 		for (;;)
4446 		{
4447 		    /* URXVT 1015 mouse reporting mode:
4448 		     * Almost identical to xterm mouse mode, except the values
4449 		     * are decimal instead of bytes.
4450 		     *
4451 		     * \033[%d;%d;%dM
4452 		     *		  ^-- row
4453 		     *	       ^----- column
4454 		     *	    ^-------- code
4455 		     *
4456 		     * SGR 1006 mouse reporting mode:
4457 		     * Almost identical to xterm mouse mode, except the values
4458 		     * are decimal instead of bytes.
4459 		     *
4460 		     * \033[<%d;%d;%dM
4461 		     *		   ^-- row
4462 		     *	        ^----- column
4463 		     *	     ^-------- code
4464 		     *
4465 		     * \033[<%d;%d;%dm        : mouse release event
4466 		     *		   ^-- row
4467 		     *	        ^----- column
4468 		     *	     ^-------- code
4469 		     */
4470 		    p = tp + slen;
4471 
4472 		    mouse_code = getdigits(&p);
4473 		    if (*p++ != ';')
4474 			return -1;
4475 
4476 		    /* when mouse reporting is SGR, add 32 to mouse code */
4477 		    if (key_name[0] == KS_SGR_MOUSE)
4478 			mouse_code += 32;
4479 
4480 		    mouse_col = getdigits(&p) - 1;
4481 		    if (*p++ != ';')
4482 			return -1;
4483 
4484 		    mouse_row = getdigits(&p) - 1;
4485 		    if (key_name[0] == KS_SGR_MOUSE && *p == 'm')
4486 			mouse_code |= MOUSE_RELEASE;
4487 		    else if (*p != 'M')
4488 			return -1;
4489 		    p++;
4490 
4491 		    slen += (int)(p - (tp + slen));
4492 
4493 		    /* skip this one if next one has same code (like xterm
4494 		     * case) */
4495 		    j = termcodes[idx].len;
4496 		    if (STRNCMP(tp, tp + slen, (size_t)j) == 0)
4497 		    {
4498 			int slen2;
4499 			int cmd_complete = 0;
4500 
4501 			/* check if the command is complete by looking for the
4502 			 * 'M' */
4503 			for (slen2 = slen; slen2 < len; slen2++)
4504 			{
4505 			    if (tp[slen2] == 'M'
4506 				    || (key_name[0] == KS_SGR_MOUSE
4507 							 && tp[slen2] == 'm'))
4508 			    {
4509 				cmd_complete = 1;
4510 				break;
4511 			    }
4512 			}
4513 			p += j;
4514 			if (cmd_complete && getdigits(&p) == mouse_code)
4515 			{
4516 			    slen += j; /* skip the \033[ */
4517 			    continue;
4518 			}
4519 		    }
4520 		    break;
4521 		}
4522 	    }
4523 # endif
4524 
4525 	if (key_name[0] == (int)KS_MOUSE
4526 #ifdef FEAT_MOUSE_URXVT
4527 	    || key_name[0] == (int)KS_URXVT_MOUSE
4528 #endif
4529 #ifdef FEAT_MOUSE_SGR
4530 	    || key_name[0] == KS_SGR_MOUSE
4531 #endif
4532 	    )
4533 	{
4534 #  if !defined(MSWIN)
4535 		/*
4536 		 * Handle mouse events.
4537 		 * Recognize the xterm mouse wheel, but not in the GUI, the
4538 		 * Linux console with GPM and the MS-DOS or Win32 console
4539 		 * (multi-clicks use >= 0x60).
4540 		 */
4541 		if (mouse_code >= MOUSEWHEEL_LOW
4542 #   ifdef FEAT_GUI
4543 			&& !gui.in_use
4544 #   endif
4545 #   ifdef FEAT_MOUSE_GPM
4546 			&& gpm_flag == 0
4547 #   endif
4548 			)
4549 		{
4550 		    /* Keep the mouse_code before it's changed, so that we
4551 		     * remember that it was a mouse wheel click. */
4552 		    wheel_code = mouse_code;
4553 		}
4554 #   ifdef FEAT_MOUSE_XTERM
4555 		else if (held_button == MOUSE_RELEASE
4556 #    ifdef FEAT_GUI
4557 			&& !gui.in_use
4558 #    endif
4559 			&& (mouse_code == 0x23 || mouse_code == 0x24))
4560 		{
4561 		    /* Apparently used by rxvt scroll wheel. */
4562 		    wheel_code = mouse_code - 0x23 + MOUSEWHEEL_LOW;
4563 		}
4564 #   endif
4565 
4566 #   if defined(UNIX) && defined(FEAT_MOUSE_TTY)
4567 		else if (use_xterm_mouse() > 1)
4568 		{
4569 		    if (mouse_code & MOUSE_DRAG_XTERM)
4570 			mouse_code |= MOUSE_DRAG;
4571 		}
4572 #   endif
4573 #   ifdef FEAT_XCLIPBOARD
4574 		else if (!(mouse_code & MOUSE_DRAG & ~MOUSE_CLICK_MASK))
4575 		{
4576 		    if ((mouse_code & MOUSE_RELEASE) == MOUSE_RELEASE)
4577 			stop_xterm_trace();
4578 		    else
4579 			start_xterm_trace(mouse_code);
4580 		}
4581 #   endif
4582 #  endif
4583 	    }
4584 # endif /* !UNIX || FEAT_MOUSE_XTERM */
4585 # ifdef FEAT_MOUSE_NET
4586 	    if (key_name[0] == (int)KS_NETTERM_MOUSE)
4587 	    {
4588 		int mc, mr;
4589 
4590 		/* expect a rather limited sequence like: balancing {
4591 		 * \033}6,45\r
4592 		 * '6' is the row, 45 is the column
4593 		 */
4594 		p = tp + slen;
4595 		mr = getdigits(&p);
4596 		if (*p++ != ',')
4597 		    return -1;
4598 		mc = getdigits(&p);
4599 		if (*p++ != '\r')
4600 		    return -1;
4601 
4602 		mouse_col = mc - 1;
4603 		mouse_row = mr - 1;
4604 		mouse_code = MOUSE_LEFT;
4605 		slen += (int)(p - (tp + slen));
4606 	    }
4607 # endif	/* FEAT_MOUSE_NET */
4608 # ifdef FEAT_MOUSE_JSB
4609 	    if (key_name[0] == (int)KS_JSBTERM_MOUSE)
4610 	    {
4611 		int mult, val, iter, button, status;
4612 
4613 		/* JSBTERM Input Model
4614 		 * \033[0~zw uniq escape sequence
4615 		 * (L-x)  Left button pressed - not pressed x not reporting
4616 		 * (M-x)  Middle button pressed - not pressed x not reporting
4617 		 * (R-x)  Right button pressed - not pressed x not reporting
4618 		 * (SDmdu)  Single , Double click, m mouse move d button down
4619 		 *						   u button up
4620 		 *  ###   X cursor position padded to 3 digits
4621 		 *  ###   Y cursor position padded to 3 digits
4622 		 * (s-x)  SHIFT key pressed - not pressed x not reporting
4623 		 * (c-x)  CTRL key pressed - not pressed x not reporting
4624 		 * \033\\ terminating sequence
4625 		 */
4626 
4627 		p = tp + slen;
4628 		button = mouse_code = 0;
4629 		switch (*p++)
4630 		{
4631 		    case 'L': button = 1; break;
4632 		    case '-': break;
4633 		    case 'x': break; /* ignore sequence */
4634 		    default:  return -1; /* Unknown Result */
4635 		}
4636 		switch (*p++)
4637 		{
4638 		    case 'M': button |= 2; break;
4639 		    case '-': break;
4640 		    case 'x': break; /* ignore sequence */
4641 		    default:  return -1; /* Unknown Result */
4642 		}
4643 		switch (*p++)
4644 		{
4645 		    case 'R': button |= 4; break;
4646 		    case '-': break;
4647 		    case 'x': break; /* ignore sequence */
4648 		    default:  return -1; /* Unknown Result */
4649 		}
4650 		status = *p++;
4651 		for (val = 0, mult = 100, iter = 0; iter < 3; iter++,
4652 							      mult /= 10, p++)
4653 		    if (*p >= '0' && *p <= '9')
4654 			val += (*p - '0') * mult;
4655 		    else
4656 			return -1;
4657 		mouse_col = val;
4658 		for (val = 0, mult = 100, iter = 0; iter < 3; iter++,
4659 							      mult /= 10, p++)
4660 		    if (*p >= '0' && *p <= '9')
4661 			val += (*p - '0') * mult;
4662 		    else
4663 			return -1;
4664 		mouse_row = val;
4665 		switch (*p++)
4666 		{
4667 		    case 's': button |= 8; break;  /* SHIFT key Pressed */
4668 		    case '-': break;  /* Not Pressed */
4669 		    case 'x': break;  /* Not Reporting */
4670 		    default:  return -1; /* Unknown Result */
4671 		}
4672 		switch (*p++)
4673 		{
4674 		    case 'c': button |= 16; break;  /* CTRL key Pressed */
4675 		    case '-': break;  /* Not Pressed */
4676 		    case 'x': break;  /* Not Reporting */
4677 		    default:  return -1; /* Unknown Result */
4678 		}
4679 		if (*p++ != '\033')
4680 		    return -1;
4681 		if (*p++ != '\\')
4682 		    return -1;
4683 		switch (status)
4684 		{
4685 		    case 'D': /* Double Click */
4686 		    case 'S': /* Single Click */
4687 			if (button & 1) mouse_code |= MOUSE_LEFT;
4688 			if (button & 2) mouse_code |= MOUSE_MIDDLE;
4689 			if (button & 4) mouse_code |= MOUSE_RIGHT;
4690 			if (button & 8) mouse_code |= MOUSE_SHIFT;
4691 			if (button & 16) mouse_code |= MOUSE_CTRL;
4692 			break;
4693 		    case 'm': /* Mouse move */
4694 			if (button & 1) mouse_code |= MOUSE_LEFT;
4695 			if (button & 2) mouse_code |= MOUSE_MIDDLE;
4696 			if (button & 4) mouse_code |= MOUSE_RIGHT;
4697 			if (button & 8) mouse_code |= MOUSE_SHIFT;
4698 			if (button & 16) mouse_code |= MOUSE_CTRL;
4699 			if ((button & 7) != 0)
4700 			{
4701 			    held_button = mouse_code;
4702 			    mouse_code |= MOUSE_DRAG;
4703 			}
4704 			is_drag = TRUE;
4705 			showmode();
4706 			break;
4707 		    case 'd': /* Button Down */
4708 			if (button & 1) mouse_code |= MOUSE_LEFT;
4709 			if (button & 2) mouse_code |= MOUSE_MIDDLE;
4710 			if (button & 4) mouse_code |= MOUSE_RIGHT;
4711 			if (button & 8) mouse_code |= MOUSE_SHIFT;
4712 			if (button & 16) mouse_code |= MOUSE_CTRL;
4713 			break;
4714 		    case 'u': /* Button Up */
4715 			if (button & 1)
4716 			    mouse_code |= MOUSE_LEFT | MOUSE_RELEASE;
4717 			if (button & 2)
4718 			    mouse_code |= MOUSE_MIDDLE | MOUSE_RELEASE;
4719 			if (button & 4)
4720 			    mouse_code |= MOUSE_RIGHT | MOUSE_RELEASE;
4721 			if (button & 8)
4722 			    mouse_code |= MOUSE_SHIFT;
4723 			if (button & 16)
4724 			    mouse_code |= MOUSE_CTRL;
4725 			break;
4726 		    default: return -1; /* Unknown Result */
4727 		}
4728 
4729 		slen += (p - (tp + slen));
4730 	    }
4731 # endif /* FEAT_MOUSE_JSB */
4732 # ifdef FEAT_MOUSE_DEC
4733 	    if (key_name[0] == (int)KS_DEC_MOUSE)
4734 	    {
4735 	       /* The DEC Locator Input Model
4736 		* Netterm delivers the code sequence:
4737 		*  \033[2;4;24;80&w  (left button down)
4738 		*  \033[3;0;24;80&w  (left button up)
4739 		*  \033[6;1;24;80&w  (right button down)
4740 		*  \033[7;0;24;80&w  (right button up)
4741 		* CSI Pe ; Pb ; Pr ; Pc ; Pp & w
4742 		* Pe is the event code
4743 		* Pb is the button code
4744 		* Pr is the row coordinate
4745 		* Pc is the column coordinate
4746 		* Pp is the third coordinate (page number)
4747 		* Pe, the event code indicates what event caused this report
4748 		*    The following event codes are defined:
4749 		*    0 - request, the terminal received an explicit request
4750 		*	 for a locator report, but the locator is unavailable
4751 		*    1 - request, the terminal received an explicit request
4752 		*	 for a locator report
4753 		*    2 - left button down
4754 		*    3 - left button up
4755 		*    4 - middle button down
4756 		*    5 - middle button up
4757 		*    6 - right button down
4758 		*    7 - right button up
4759 		*    8 - fourth button down
4760 		*    9 - fourth button up
4761 		*    10 - locator outside filter rectangle
4762 		* Pb, the button code, ASCII decimal 0-15 indicating which
4763 		*   buttons are down if any. The state of the four buttons
4764 		*   on the locator correspond to the low four bits of the
4765 		*   decimal value,
4766 		*   "1" means button depressed
4767 		*   0 - no buttons down,
4768 		*   1 - right,
4769 		*   2 - middle,
4770 		*   4 - left,
4771 		*   8 - fourth
4772 		* Pr is the row coordinate of the locator position in the page,
4773 		*   encoded as an ASCII decimal value.
4774 		*   If Pr is omitted, the locator position is undefined
4775 		*   (outside the terminal window for example).
4776 		* Pc is the column coordinate of the locator position in the
4777 		*   page, encoded as an ASCII decimal value.
4778 		*   If Pc is omitted, the locator position is undefined
4779 		*   (outside the terminal window for example).
4780 		* Pp is the page coordinate of the locator position
4781 		*   encoded as an ASCII decimal value.
4782 		*   The page coordinate may be omitted if the locator is on
4783 		*   page one (the default).  We ignore it anyway.
4784 		*/
4785 		int Pe, Pb, Pr, Pc;
4786 
4787 		p = tp + slen;
4788 
4789 		/* get event status */
4790 		Pe = getdigits(&p);
4791 		if (*p++ != ';')
4792 		    return -1;
4793 
4794 		/* get button status */
4795 		Pb = getdigits(&p);
4796 		if (*p++ != ';')
4797 		    return -1;
4798 
4799 		/* get row status */
4800 		Pr = getdigits(&p);
4801 		if (*p++ != ';')
4802 		    return -1;
4803 
4804 		/* get column status */
4805 		Pc = getdigits(&p);
4806 
4807 		/* the page parameter is optional */
4808 		if (*p == ';')
4809 		{
4810 		    p++;
4811 		    (void)getdigits(&p);
4812 		}
4813 		if (*p++ != '&')
4814 		    return -1;
4815 		if (*p++ != 'w')
4816 		    return -1;
4817 
4818 		mouse_code = 0;
4819 		switch (Pe)
4820 		{
4821 		case  0: return -1; /* position request while unavailable */
4822 		case  1: /* a response to a locator position request includes
4823 			    the status of all buttons */
4824 			 Pb &= 7;   /* mask off and ignore fourth button */
4825 			 if (Pb & 4)
4826 			     mouse_code  = MOUSE_LEFT;
4827 			 if (Pb & 2)
4828 			     mouse_code  = MOUSE_MIDDLE;
4829 			 if (Pb & 1)
4830 			     mouse_code  = MOUSE_RIGHT;
4831 			 if (Pb)
4832 			 {
4833 			     held_button = mouse_code;
4834 			     mouse_code |= MOUSE_DRAG;
4835 			     WantQueryMouse = TRUE;
4836 			 }
4837 			 is_drag = TRUE;
4838 			 showmode();
4839 			 break;
4840 		case  2: mouse_code = MOUSE_LEFT;
4841 			 WantQueryMouse = TRUE;
4842 			 break;
4843 		case  3: mouse_code = MOUSE_RELEASE | MOUSE_LEFT;
4844 			 break;
4845 		case  4: mouse_code = MOUSE_MIDDLE;
4846 			 WantQueryMouse = TRUE;
4847 			 break;
4848 		case  5: mouse_code = MOUSE_RELEASE | MOUSE_MIDDLE;
4849 			 break;
4850 		case  6: mouse_code = MOUSE_RIGHT;
4851 			 WantQueryMouse = TRUE;
4852 			 break;
4853 		case  7: mouse_code = MOUSE_RELEASE | MOUSE_RIGHT;
4854 			 break;
4855 		case  8: return -1; /* fourth button down */
4856 		case  9: return -1; /* fourth button up */
4857 		case 10: return -1; /* mouse outside of filter rectangle */
4858 		default: return -1; /* should never occur */
4859 		}
4860 
4861 		mouse_col = Pc - 1;
4862 		mouse_row = Pr - 1;
4863 
4864 		slen += (int)(p - (tp + slen));
4865 	    }
4866 # endif /* FEAT_MOUSE_DEC */
4867 # ifdef FEAT_MOUSE_PTERM
4868 	    if (key_name[0] == (int)KS_PTERM_MOUSE)
4869 	    {
4870 		int button, num_clicks, action;
4871 
4872 		p = tp + slen;
4873 
4874 		action = getdigits(&p);
4875 		if (*p++ != ';')
4876 		    return -1;
4877 
4878 		mouse_row = getdigits(&p);
4879 		if (*p++ != ';')
4880 		    return -1;
4881 		mouse_col = getdigits(&p);
4882 		if (*p++ != ';')
4883 		    return -1;
4884 
4885 		button = getdigits(&p);
4886 		mouse_code = 0;
4887 
4888 		switch( button )
4889 		{
4890 		    case 4: mouse_code = MOUSE_LEFT; break;
4891 		    case 1: mouse_code = MOUSE_RIGHT; break;
4892 		    case 2: mouse_code = MOUSE_MIDDLE; break;
4893 		    default: return -1;
4894 		}
4895 
4896 		switch( action )
4897 		{
4898 		    case 31: /* Initial press */
4899 			if (*p++ != ';')
4900 			    return -1;
4901 
4902 			num_clicks = getdigits(&p); /* Not used */
4903 			break;
4904 
4905 		    case 32: /* Release */
4906 			mouse_code |= MOUSE_RELEASE;
4907 			break;
4908 
4909 		    case 33: /* Drag */
4910 			held_button = mouse_code;
4911 			mouse_code |= MOUSE_DRAG;
4912 			break;
4913 
4914 		    default:
4915 			return -1;
4916 		}
4917 
4918 		if (*p++ != 't')
4919 		    return -1;
4920 
4921 		slen += (p - (tp + slen));
4922 	    }
4923 # endif /* FEAT_MOUSE_PTERM */
4924 
4925 	    /* Interpret the mouse code */
4926 	    current_button = (mouse_code & MOUSE_CLICK_MASK);
4927 	    if (current_button == MOUSE_RELEASE
4928 # ifdef FEAT_MOUSE_XTERM
4929 		    && wheel_code == 0
4930 # endif
4931 		    )
4932 	    {
4933 		/*
4934 		 * If we get a mouse drag or release event when
4935 		 * there is no mouse button held down (held_button ==
4936 		 * MOUSE_RELEASE), produce a K_IGNORE below.
4937 		 * (can happen when you hold down two buttons
4938 		 * and then let them go, or click in the menu bar, but not
4939 		 * on a menu, and drag into the text).
4940 		 */
4941 		if ((mouse_code & MOUSE_DRAG) == MOUSE_DRAG)
4942 		    is_drag = TRUE;
4943 		current_button = held_button;
4944 	    }
4945 	    else if (wheel_code == 0)
4946 	    {
4947 # ifdef CHECK_DOUBLE_CLICK
4948 #  ifdef FEAT_MOUSE_GPM
4949 #   ifdef FEAT_GUI
4950 		/*
4951 		 * Only for Unix, when GUI or gpm is not active, we handle
4952 		 * multi-clicks here.
4953 		 */
4954 		if (gpm_flag == 0 && !gui.in_use)
4955 #   else
4956 		if (gpm_flag == 0)
4957 #   endif
4958 #  else
4959 #   ifdef FEAT_GUI
4960 		if (!gui.in_use)
4961 #   endif
4962 #  endif
4963 		{
4964 		    /*
4965 		     * Compute the time elapsed since the previous mouse click.
4966 		     */
4967 		    gettimeofday(&mouse_time, NULL);
4968 		    timediff = (mouse_time.tv_usec
4969 					    - orig_mouse_time.tv_usec) / 1000;
4970 		    if (timediff < 0)
4971 			--orig_mouse_time.tv_sec;
4972 		    timediff += (mouse_time.tv_sec
4973 					     - orig_mouse_time.tv_sec) * 1000;
4974 		    orig_mouse_time = mouse_time;
4975 		    if (mouse_code == orig_mouse_code
4976 			    && timediff < p_mouset
4977 			    && orig_num_clicks != 4
4978 			    && orig_mouse_col == mouse_col
4979 			    && orig_mouse_row == mouse_row
4980 			    && ((orig_topline == curwin->w_topline
4981 #ifdef FEAT_DIFF
4982 				    && orig_topfill == curwin->w_topfill
4983 #endif
4984 				)
4985 #ifdef FEAT_WINDOWS
4986 				/* Double click in tab pages line also works
4987 				 * when window contents changes. */
4988 				|| (mouse_row == 0 && firstwin->w_winrow > 0)
4989 #endif
4990 			       )
4991 			    )
4992 			++orig_num_clicks;
4993 		    else
4994 			orig_num_clicks = 1;
4995 		    orig_mouse_col = mouse_col;
4996 		    orig_mouse_row = mouse_row;
4997 		    orig_topline = curwin->w_topline;
4998 #ifdef FEAT_DIFF
4999 		    orig_topfill = curwin->w_topfill;
5000 #endif
5001 		}
5002 #  if defined(FEAT_GUI) || defined(FEAT_MOUSE_GPM)
5003 		else
5004 		    orig_num_clicks = NUM_MOUSE_CLICKS(mouse_code);
5005 #  endif
5006 # else
5007 		orig_num_clicks = NUM_MOUSE_CLICKS(mouse_code);
5008 # endif
5009 		is_click = TRUE;
5010 		orig_mouse_code = mouse_code;
5011 	    }
5012 	    if (!is_drag)
5013 		held_button = mouse_code & MOUSE_CLICK_MASK;
5014 
5015 	    /*
5016 	     * Translate the actual mouse event into a pseudo mouse event.
5017 	     * First work out what modifiers are to be used.
5018 	     */
5019 	    if (orig_mouse_code & MOUSE_SHIFT)
5020 		modifiers |= MOD_MASK_SHIFT;
5021 	    if (orig_mouse_code & MOUSE_CTRL)
5022 		modifiers |= MOD_MASK_CTRL;
5023 	    if (orig_mouse_code & MOUSE_ALT)
5024 		modifiers |= MOD_MASK_ALT;
5025 	    if (orig_num_clicks == 2)
5026 		modifiers |= MOD_MASK_2CLICK;
5027 	    else if (orig_num_clicks == 3)
5028 		modifiers |= MOD_MASK_3CLICK;
5029 	    else if (orig_num_clicks == 4)
5030 		modifiers |= MOD_MASK_4CLICK;
5031 
5032 	    /* Work out our pseudo mouse event */
5033 	    key_name[0] = (int)KS_EXTRA;
5034 	    if (wheel_code != 0)
5035 	    {
5036 		if (wheel_code & MOUSE_CTRL)
5037 		    modifiers |= MOD_MASK_CTRL;
5038 		if (wheel_code & MOUSE_ALT)
5039 		    modifiers |= MOD_MASK_ALT;
5040 		key_name[1] = (wheel_code & 1)
5041 					? (int)KE_MOUSEUP : (int)KE_MOUSEDOWN;
5042 	    }
5043 	    else
5044 		key_name[1] = get_pseudo_mouse_code(current_button,
5045 							   is_click, is_drag);
5046 
5047 	    /* Make sure the mouse position is valid.  Some terminals may
5048 	     * return weird values. */
5049 	    if (mouse_col >= Columns)
5050 		mouse_col = Columns - 1;
5051 	    if (mouse_row >= Rows)
5052 		mouse_row = Rows - 1;
5053 	}
5054 #endif /* FEAT_MOUSE */
5055 
5056 #ifdef FEAT_GUI
5057 	/*
5058 	 * If using the GUI, then we get menu and scrollbar events.
5059 	 *
5060 	 * A menu event is encoded as K_SPECIAL, KS_MENU, KE_FILLER followed by
5061 	 * four bytes which are to be taken as a pointer to the vimmenu_T
5062 	 * structure.
5063 	 *
5064 	 * A tab line event is encoded as K_SPECIAL KS_TABLINE nr, where "nr"
5065 	 * is one byte with the tab index.
5066 	 *
5067 	 * A scrollbar event is K_SPECIAL, KS_VER_SCROLLBAR, KE_FILLER followed
5068 	 * by one byte representing the scrollbar number, and then four bytes
5069 	 * representing a long_u which is the new value of the scrollbar.
5070 	 *
5071 	 * A horizontal scrollbar event is K_SPECIAL, KS_HOR_SCROLLBAR,
5072 	 * KE_FILLER followed by four bytes representing a long_u which is the
5073 	 * new value of the scrollbar.
5074 	 */
5075 # ifdef FEAT_MENU
5076 	else if (key_name[0] == (int)KS_MENU)
5077 	{
5078 	    long_u	val;
5079 
5080 	    num_bytes = get_long_from_buf(tp + slen, &val);
5081 	    if (num_bytes == -1)
5082 		return -1;
5083 	    current_menu = (vimmenu_T *)val;
5084 	    slen += num_bytes;
5085 
5086 	    /* The menu may have been deleted right after it was used, check
5087 	     * for that. */
5088 	    if (check_menu_pointer(root_menu, current_menu) == FAIL)
5089 	    {
5090 		key_name[0] = KS_EXTRA;
5091 		key_name[1] = (int)KE_IGNORE;
5092 	    }
5093 	}
5094 # endif
5095 # ifdef FEAT_GUI_TABLINE
5096 	else if (key_name[0] == (int)KS_TABLINE)
5097 	{
5098 	    /* Selecting tabline tab or using its menu. */
5099 	    num_bytes = get_bytes_from_buf(tp + slen, bytes, 1);
5100 	    if (num_bytes == -1)
5101 		return -1;
5102 	    current_tab = (int)bytes[0];
5103 	    if (current_tab == 255)	/* -1 in a byte gives 255 */
5104 		current_tab = -1;
5105 	    slen += num_bytes;
5106 	}
5107 	else if (key_name[0] == (int)KS_TABMENU)
5108 	{
5109 	    /* Selecting tabline tab or using its menu. */
5110 	    num_bytes = get_bytes_from_buf(tp + slen, bytes, 2);
5111 	    if (num_bytes == -1)
5112 		return -1;
5113 	    current_tab = (int)bytes[0];
5114 	    current_tabmenu = (int)bytes[1];
5115 	    slen += num_bytes;
5116 	}
5117 # endif
5118 # ifndef USE_ON_FLY_SCROLL
5119 	else if (key_name[0] == (int)KS_VER_SCROLLBAR)
5120 	{
5121 	    long_u	val;
5122 
5123 	    /* Get the last scrollbar event in the queue of the same type */
5124 	    j = 0;
5125 	    for (i = 0; tp[j] == CSI && tp[j + 1] == KS_VER_SCROLLBAR
5126 						     && tp[j + 2] != NUL; ++i)
5127 	    {
5128 		j += 3;
5129 		num_bytes = get_bytes_from_buf(tp + j, bytes, 1);
5130 		if (num_bytes == -1)
5131 		    break;
5132 		if (i == 0)
5133 		    current_scrollbar = (int)bytes[0];
5134 		else if (current_scrollbar != (int)bytes[0])
5135 		    break;
5136 		j += num_bytes;
5137 		num_bytes = get_long_from_buf(tp + j, &val);
5138 		if (num_bytes == -1)
5139 		    break;
5140 		scrollbar_value = val;
5141 		j += num_bytes;
5142 		slen = j;
5143 	    }
5144 	    if (i == 0)		/* not enough characters to make one */
5145 		return -1;
5146 	}
5147 	else if (key_name[0] == (int)KS_HOR_SCROLLBAR)
5148 	{
5149 	    long_u	val;
5150 
5151 	    /* Get the last horiz. scrollbar event in the queue */
5152 	    j = 0;
5153 	    for (i = 0; tp[j] == CSI && tp[j + 1] == KS_HOR_SCROLLBAR
5154 						     && tp[j + 2] != NUL; ++i)
5155 	    {
5156 		j += 3;
5157 		num_bytes = get_long_from_buf(tp + j, &val);
5158 		if (num_bytes == -1)
5159 		    break;
5160 		scrollbar_value = val;
5161 		j += num_bytes;
5162 		slen = j;
5163 	    }
5164 	    if (i == 0)		/* not enough characters to make one */
5165 		return -1;
5166 	}
5167 # endif /* !USE_ON_FLY_SCROLL */
5168 #endif /* FEAT_GUI */
5169 
5170 	/*
5171 	 * Change <xHome> to <Home>, <xUp> to <Up>, etc.
5172 	 */
5173 	key = handle_x_keys(TERMCAP2KEY(key_name[0], key_name[1]));
5174 
5175 	/*
5176 	 * Add any modifier codes to our string.
5177 	 */
5178 	new_slen = 0;		/* Length of what will replace the termcode */
5179 	if (modifiers != 0)
5180 	{
5181 	    /* Some keys have the modifier included.  Need to handle that here
5182 	     * to make mappings work. */
5183 	    key = simplify_key(key, &modifiers);
5184 	    if (modifiers != 0)
5185 	    {
5186 		string[new_slen++] = K_SPECIAL;
5187 		string[new_slen++] = (int)KS_MODIFIER;
5188 		string[new_slen++] = modifiers;
5189 	    }
5190 	}
5191 
5192 	/* Finally, add the special key code to our string */
5193 	key_name[0] = KEY2TERMCAP0(key);
5194 	key_name[1] = KEY2TERMCAP1(key);
5195 	if (key_name[0] == KS_KEY)
5196 	{
5197 	    /* from ":set <M-b>=xx" */
5198 #ifdef FEAT_MBYTE
5199 	    if (has_mbyte)
5200 		new_slen += (*mb_char2bytes)(key_name[1], string + new_slen);
5201 	    else
5202 #endif
5203 		string[new_slen++] = key_name[1];
5204 	}
5205 	else if (new_slen == 0 && key_name[0] == KS_EXTRA
5206 						  && key_name[1] == KE_IGNORE)
5207 	{
5208 	    /* Do not put K_IGNORE into the buffer, do return KEYLEN_REMOVED
5209 	     * to indicate what happened. */
5210 	    retval = KEYLEN_REMOVED;
5211 	}
5212 	else
5213 	{
5214 	    string[new_slen++] = K_SPECIAL;
5215 	    string[new_slen++] = key_name[0];
5216 	    string[new_slen++] = key_name[1];
5217 	}
5218 	string[new_slen] = NUL;
5219 	extra = new_slen - slen;
5220 	if (buf == NULL)
5221 	{
5222 	    if (extra < 0)
5223 		/* remove matched chars, taking care of noremap */
5224 		del_typebuf(-extra, offset);
5225 	    else if (extra > 0)
5226 		/* insert the extra space we need */
5227 		ins_typebuf(string + slen, REMAP_YES, offset, FALSE, FALSE);
5228 
5229 	    /*
5230 	     * Careful: del_typebuf() and ins_typebuf() may have reallocated
5231 	     * typebuf.tb_buf[]!
5232 	     */
5233 	    mch_memmove(typebuf.tb_buf + typebuf.tb_off + offset, string,
5234 							    (size_t)new_slen);
5235 	}
5236 	else
5237 	{
5238 	    if (extra < 0)
5239 		/* remove matched characters */
5240 		mch_memmove(buf + offset, buf + offset - extra,
5241 					   (size_t)(*buflen + offset + extra));
5242 	    else if (extra > 0)
5243 	    {
5244 		/* Insert the extra space we need.  If there is insufficient
5245 		 * space return -1. */
5246 		if (*buflen + extra + new_slen >= bufsize)
5247 		    return -1;
5248 		mch_memmove(buf + offset + extra, buf + offset,
5249 						   (size_t)(*buflen - offset));
5250 	    }
5251 	    mch_memmove(buf + offset, string, (size_t)new_slen);
5252 	    *buflen = *buflen + extra + new_slen;
5253 	}
5254 	return retval == 0 ? (len + extra + offset) : retval;
5255     }
5256 
5257 #ifdef FEAT_TERMRESPONSE
5258     LOG_TR("normal character");
5259 #endif
5260 
5261     return 0;			    /* no match found */
5262 }
5263 
5264 /*
5265  * Replace any terminal code strings in from[] with the equivalent internal
5266  * vim representation.	This is used for the "from" and "to" part of a
5267  * mapping, and the "to" part of a menu command.
5268  * Any strings like "<C-UP>" are also replaced, unless 'cpoptions' contains
5269  * '<'.
5270  * K_SPECIAL by itself is replaced by K_SPECIAL KS_SPECIAL KE_FILLER.
5271  *
5272  * The replacement is done in result[] and finally copied into allocated
5273  * memory. If this all works well *bufp is set to the allocated memory and a
5274  * pointer to it is returned. If something fails *bufp is set to NULL and from
5275  * is returned.
5276  *
5277  * CTRL-V characters are removed.  When "from_part" is TRUE, a trailing CTRL-V
5278  * is included, otherwise it is removed (for ":map xx ^V", maps xx to
5279  * nothing).  When 'cpoptions' does not contain 'B', a backslash can be used
5280  * instead of a CTRL-V.
5281  */
5282     char_u *
5283 replace_termcodes(
5284     char_u	*from,
5285     char_u	**bufp,
5286     int		from_part,
5287     int		do_lt,		/* also translate <lt> */
5288     int		special)	/* always accept <key> notation */
5289 {
5290     int		i;
5291     int		slen;
5292     int		key;
5293     int		dlen = 0;
5294     char_u	*src;
5295     int		do_backslash;	/* backslash is a special character */
5296     int		do_special;	/* recognize <> key codes */
5297     int		do_key_code;	/* recognize raw key codes */
5298     char_u	*result;	/* buffer for resulting string */
5299 
5300     do_backslash = (vim_strchr(p_cpo, CPO_BSLASH) == NULL);
5301     do_special = (vim_strchr(p_cpo, CPO_SPECI) == NULL) || special;
5302     do_key_code = (vim_strchr(p_cpo, CPO_KEYCODE) == NULL);
5303 
5304     /*
5305      * Allocate space for the translation.  Worst case a single character is
5306      * replaced by 6 bytes (shifted special key), plus a NUL at the end.
5307      */
5308     result = alloc((unsigned)STRLEN(from) * 6 + 1);
5309     if (result == NULL)		/* out of memory */
5310     {
5311 	*bufp = NULL;
5312 	return from;
5313     }
5314 
5315     src = from;
5316 
5317     /*
5318      * Check for #n at start only: function key n
5319      */
5320     if (from_part && src[0] == '#' && VIM_ISDIGIT(src[1]))  /* function key */
5321     {
5322 	result[dlen++] = K_SPECIAL;
5323 	result[dlen++] = 'k';
5324 	if (src[1] == '0')
5325 	    result[dlen++] = ';';	/* #0 is F10 is "k;" */
5326 	else
5327 	    result[dlen++] = src[1];	/* #3 is F3 is "k3" */
5328 	src += 2;
5329     }
5330 
5331     /*
5332      * Copy each byte from *from to result[dlen]
5333      */
5334     while (*src != NUL)
5335     {
5336 	/*
5337 	 * If 'cpoptions' does not contain '<', check for special key codes,
5338 	 * like "<C-S-LeftMouse>"
5339 	 */
5340 	if (do_special && (do_lt || STRNCMP(src, "<lt>", 4) != 0))
5341 	{
5342 #ifdef FEAT_EVAL
5343 	    /*
5344 	     * Replace <SID> by K_SNR <script-nr> _.
5345 	     * (room: 5 * 6 = 30 bytes; needed: 3 + <nr> + 1 <= 14)
5346 	     */
5347 	    if (STRNICMP(src, "<SID>", 5) == 0)
5348 	    {
5349 		if (current_SID <= 0)
5350 		    EMSG(_(e_usingsid));
5351 		else
5352 		{
5353 		    src += 5;
5354 		    result[dlen++] = K_SPECIAL;
5355 		    result[dlen++] = (int)KS_EXTRA;
5356 		    result[dlen++] = (int)KE_SNR;
5357 		    sprintf((char *)result + dlen, "%ld", (long)current_SID);
5358 		    dlen += (int)STRLEN(result + dlen);
5359 		    result[dlen++] = '_';
5360 		    continue;
5361 		}
5362 	    }
5363 #endif
5364 
5365 	    slen = trans_special(&src, result + dlen, TRUE);
5366 	    if (slen)
5367 	    {
5368 		dlen += slen;
5369 		continue;
5370 	    }
5371 	}
5372 
5373 	/*
5374 	 * If 'cpoptions' does not contain 'k', see if it's an actual key-code.
5375 	 * Note that this is also checked after replacing the <> form.
5376 	 * Single character codes are NOT replaced (e.g. ^H or DEL), because
5377 	 * it could be a character in the file.
5378 	 */
5379 	if (do_key_code)
5380 	{
5381 	    i = find_term_bykeys(src);
5382 	    if (i >= 0)
5383 	    {
5384 		result[dlen++] = K_SPECIAL;
5385 		result[dlen++] = termcodes[i].name[0];
5386 		result[dlen++] = termcodes[i].name[1];
5387 		src += termcodes[i].len;
5388 		/* If terminal code matched, continue after it. */
5389 		continue;
5390 	    }
5391 	}
5392 
5393 #ifdef FEAT_EVAL
5394 	if (do_special)
5395 	{
5396 	    char_u	*p, *s, len;
5397 
5398 	    /*
5399 	     * Replace <Leader> by the value of "mapleader".
5400 	     * Replace <LocalLeader> by the value of "maplocalleader".
5401 	     * If "mapleader" or "maplocalleader" isn't set use a backslash.
5402 	     */
5403 	    if (STRNICMP(src, "<Leader>", 8) == 0)
5404 	    {
5405 		len = 8;
5406 		p = get_var_value((char_u *)"g:mapleader");
5407 	    }
5408 	    else if (STRNICMP(src, "<LocalLeader>", 13) == 0)
5409 	    {
5410 		len = 13;
5411 		p = get_var_value((char_u *)"g:maplocalleader");
5412 	    }
5413 	    else
5414 	    {
5415 		len = 0;
5416 		p = NULL;
5417 	    }
5418 	    if (len != 0)
5419 	    {
5420 		/* Allow up to 8 * 6 characters for "mapleader". */
5421 		if (p == NULL || *p == NUL || STRLEN(p) > 8 * 6)
5422 		    s = (char_u *)"\\";
5423 		else
5424 		    s = p;
5425 		while (*s != NUL)
5426 		    result[dlen++] = *s++;
5427 		src += len;
5428 		continue;
5429 	    }
5430 	}
5431 #endif
5432 
5433 	/*
5434 	 * Remove CTRL-V and ignore the next character.
5435 	 * For "from" side the CTRL-V at the end is included, for the "to"
5436 	 * part it is removed.
5437 	 * If 'cpoptions' does not contain 'B', also accept a backslash.
5438 	 */
5439 	key = *src;
5440 	if (key == Ctrl_V || (do_backslash && key == '\\'))
5441 	{
5442 	    ++src;				/* skip CTRL-V or backslash */
5443 	    if (*src == NUL)
5444 	    {
5445 		if (from_part)
5446 		    result[dlen++] = key;
5447 		break;
5448 	    }
5449 	}
5450 
5451 #ifdef FEAT_MBYTE
5452 	/* skip multibyte char correctly */
5453 	for (i = (*mb_ptr2len)(src); i > 0; --i)
5454 #endif
5455 	{
5456 	    /*
5457 	     * If the character is K_SPECIAL, replace it with K_SPECIAL
5458 	     * KS_SPECIAL KE_FILLER.
5459 	     * If compiled with the GUI replace CSI with K_CSI.
5460 	     */
5461 	    if (*src == K_SPECIAL)
5462 	    {
5463 		result[dlen++] = K_SPECIAL;
5464 		result[dlen++] = KS_SPECIAL;
5465 		result[dlen++] = KE_FILLER;
5466 	    }
5467 # ifdef FEAT_GUI
5468 	    else if (*src == CSI)
5469 	    {
5470 		result[dlen++] = K_SPECIAL;
5471 		result[dlen++] = KS_EXTRA;
5472 		result[dlen++] = (int)KE_CSI;
5473 	    }
5474 # endif
5475 	    else
5476 		result[dlen++] = *src;
5477 	    ++src;
5478 	}
5479     }
5480     result[dlen] = NUL;
5481 
5482     /*
5483      * Copy the new string to allocated memory.
5484      * If this fails, just return from.
5485      */
5486     if ((*bufp = vim_strsave(result)) != NULL)
5487 	from = *bufp;
5488     vim_free(result);
5489     return from;
5490 }
5491 
5492 /*
5493  * Find a termcode with keys 'src' (must be NUL terminated).
5494  * Return the index in termcodes[], or -1 if not found.
5495  */
5496     int
5497 find_term_bykeys(char_u *src)
5498 {
5499     int		i;
5500     int		slen = (int)STRLEN(src);
5501 
5502     for (i = 0; i < tc_len; ++i)
5503     {
5504 	if (slen == termcodes[i].len
5505 			&& STRNCMP(termcodes[i].code, src, (size_t)slen) == 0)
5506 	    return i;
5507     }
5508     return -1;
5509 }
5510 
5511 /*
5512  * Gather the first characters in the terminal key codes into a string.
5513  * Used to speed up check_termcode().
5514  */
5515     static void
5516 gather_termleader(void)
5517 {
5518     int	    i;
5519     int	    len = 0;
5520 
5521 #ifdef FEAT_GUI
5522     if (gui.in_use)
5523 	termleader[len++] = CSI;    /* the GUI codes are not in termcodes[] */
5524 #endif
5525 #ifdef FEAT_TERMRESPONSE
5526     if (check_for_codes)
5527 	termleader[len++] = DCS;    /* the termcode response starts with DCS
5528 				       in 8-bit mode */
5529 #endif
5530     termleader[len] = NUL;
5531 
5532     for (i = 0; i < tc_len; ++i)
5533 	if (vim_strchr(termleader, termcodes[i].code[0]) == NULL)
5534 	{
5535 	    termleader[len++] = termcodes[i].code[0];
5536 	    termleader[len] = NUL;
5537 	}
5538 
5539     need_gather = FALSE;
5540 }
5541 
5542 /*
5543  * Show all termcodes (for ":set termcap")
5544  * This code looks a lot like showoptions(), but is different.
5545  */
5546     void
5547 show_termcodes(void)
5548 {
5549     int		col;
5550     int		*items;
5551     int		item_count;
5552     int		run;
5553     int		row, rows;
5554     int		cols;
5555     int		i;
5556     int		len;
5557 
5558 #define INC3 27	    /* try to make three columns */
5559 #define INC2 40	    /* try to make two columns */
5560 #define GAP 2	    /* spaces between columns */
5561 
5562     if (tc_len == 0)	    /* no terminal codes (must be GUI) */
5563 	return;
5564     items = (int *)alloc((unsigned)(sizeof(int) * tc_len));
5565     if (items == NULL)
5566 	return;
5567 
5568     /* Highlight title */
5569     MSG_PUTS_TITLE(_("\n--- Terminal keys ---"));
5570 
5571     /*
5572      * do the loop two times:
5573      * 1. display the short items (non-strings and short strings)
5574      * 2. display the medium items (medium length strings)
5575      * 3. display the long items (remaining strings)
5576      */
5577     for (run = 1; run <= 3 && !got_int; ++run)
5578     {
5579 	/*
5580 	 * collect the items in items[]
5581 	 */
5582 	item_count = 0;
5583 	for (i = 0; i < tc_len; i++)
5584 	{
5585 	    len = show_one_termcode(termcodes[i].name,
5586 						    termcodes[i].code, FALSE);
5587 	    if (len <= INC3 - GAP ? run == 1
5588 			: len <= INC2 - GAP ? run == 2
5589 			: run == 3)
5590 		items[item_count++] = i;
5591 	}
5592 
5593 	/*
5594 	 * display the items
5595 	 */
5596 	if (run <= 2)
5597 	{
5598 	    cols = (Columns + GAP) / (run == 1 ? INC3 : INC2);
5599 	    if (cols == 0)
5600 		cols = 1;
5601 	    rows = (item_count + cols - 1) / cols;
5602 	}
5603 	else	/* run == 3 */
5604 	    rows = item_count;
5605 	for (row = 0; row < rows && !got_int; ++row)
5606 	{
5607 	    msg_putchar('\n');			/* go to next line */
5608 	    if (got_int)			/* 'q' typed in more */
5609 		break;
5610 	    col = 0;
5611 	    for (i = row; i < item_count; i += rows)
5612 	    {
5613 		msg_col = col;			/* make columns */
5614 		show_one_termcode(termcodes[items[i]].name,
5615 					      termcodes[items[i]].code, TRUE);
5616 		if (run == 2)
5617 		    col += INC2;
5618 		else
5619 		    col += INC3;
5620 	    }
5621 	    out_flush();
5622 	    ui_breakcheck();
5623 	}
5624     }
5625     vim_free(items);
5626 }
5627 
5628 /*
5629  * Show one termcode entry.
5630  * Output goes into IObuff[]
5631  */
5632     int
5633 show_one_termcode(char_u *name, char_u *code, int printit)
5634 {
5635     char_u	*p;
5636     int		len;
5637 
5638     if (name[0] > '~')
5639     {
5640 	IObuff[0] = ' ';
5641 	IObuff[1] = ' ';
5642 	IObuff[2] = ' ';
5643 	IObuff[3] = ' ';
5644     }
5645     else
5646     {
5647 	IObuff[0] = 't';
5648 	IObuff[1] = '_';
5649 	IObuff[2] = name[0];
5650 	IObuff[3] = name[1];
5651     }
5652     IObuff[4] = ' ';
5653 
5654     p = get_special_key_name(TERMCAP2KEY(name[0], name[1]), 0);
5655     if (p[1] != 't')
5656 	STRCPY(IObuff + 5, p);
5657     else
5658 	IObuff[5] = NUL;
5659     len = (int)STRLEN(IObuff);
5660     do
5661 	IObuff[len++] = ' ';
5662     while (len < 17);
5663     IObuff[len] = NUL;
5664     if (code == NULL)
5665 	len += 4;
5666     else
5667 	len += vim_strsize(code);
5668 
5669     if (printit)
5670     {
5671 	msg_puts(IObuff);
5672 	if (code == NULL)
5673 	    msg_puts((char_u *)"NULL");
5674 	else
5675 	    msg_outtrans(code);
5676     }
5677     return len;
5678 }
5679 
5680 #if defined(FEAT_TERMRESPONSE) || defined(PROTO)
5681 /*
5682  * For Xterm >= 140 compiled with OPT_TCAP_QUERY: Obtain the actually used
5683  * termcap codes from the terminal itself.
5684  * We get them one by one to avoid a very long response string.
5685  */
5686 static int xt_index_in = 0;
5687 static int xt_index_out = 0;
5688 
5689     static void
5690 req_codes_from_term(void)
5691 {
5692     xt_index_out = 0;
5693     xt_index_in = 0;
5694     req_more_codes_from_term();
5695 }
5696 
5697     static void
5698 req_more_codes_from_term(void)
5699 {
5700     char	buf[11];
5701     int		old_idx = xt_index_out;
5702 
5703     /* Don't do anything when going to exit. */
5704     if (exiting)
5705 	return;
5706 
5707     /* Send up to 10 more requests out than we received.  Avoid sending too
5708      * many, there can be a buffer overflow somewhere. */
5709     while (xt_index_out < xt_index_in + 10 && key_names[xt_index_out] != NULL)
5710     {
5711 # ifdef DEBUG_TERMRESPONSE
5712 	char dbuf[100];
5713 
5714 	sprintf(dbuf, "Requesting XT %d: %s",
5715 				       xt_index_out, key_names[xt_index_out]);
5716 	log_tr(dbuf);
5717 # endif
5718 	sprintf(buf, "\033P+q%02x%02x\033\\",
5719 		      key_names[xt_index_out][0], key_names[xt_index_out][1]);
5720 	out_str_nf((char_u *)buf);
5721 	++xt_index_out;
5722     }
5723 
5724     /* Send the codes out right away. */
5725     if (xt_index_out != old_idx)
5726 	out_flush();
5727 }
5728 
5729 /*
5730  * Decode key code response from xterm: '<Esc>P1+r<name>=<string><Esc>\'.
5731  * A "0" instead of the "1" indicates a code that isn't supported.
5732  * Both <name> and <string> are encoded in hex.
5733  * "code" points to the "0" or "1".
5734  */
5735     static void
5736 got_code_from_term(char_u *code, int len)
5737 {
5738 #define XT_LEN 100
5739     char_u	name[3];
5740     char_u	str[XT_LEN];
5741     int		i;
5742     int		j = 0;
5743     int		c;
5744 
5745     /* A '1' means the code is supported, a '0' means it isn't.
5746      * When half the length is > XT_LEN we can't use it.
5747      * Our names are currently all 2 characters. */
5748     if (code[0] == '1' && code[7] == '=' && len / 2 < XT_LEN)
5749     {
5750 	/* Get the name from the response and find it in the table. */
5751 	name[0] = hexhex2nr(code + 3);
5752 	name[1] = hexhex2nr(code + 5);
5753 	name[2] = NUL;
5754 	for (i = 0; key_names[i] != NULL; ++i)
5755 	{
5756 	    if (STRCMP(key_names[i], name) == 0)
5757 	    {
5758 		xt_index_in = i;
5759 		break;
5760 	    }
5761 	}
5762 # ifdef DEBUG_TERMRESPONSE
5763 	{
5764 	    char buf[100];
5765 
5766 	    sprintf(buf, "Received XT %d: %s", xt_index_in, (char *)name);
5767 	    log_tr(buf);
5768 	}
5769 # endif
5770 	if (key_names[i] != NULL)
5771 	{
5772 	    for (i = 8; (c = hexhex2nr(code + i)) >= 0; i += 2)
5773 		str[j++] = c;
5774 	    str[j] = NUL;
5775 	    if (name[0] == 'C' && name[1] == 'o')
5776 	    {
5777 		/* Color count is not a key code. */
5778 		i = atoi((char *)str);
5779 		if (i != t_colors)
5780 		{
5781 		    /* Nr of colors changed, initialize highlighting and
5782 		     * redraw everything.  This causes a redraw, which usually
5783 		     * clears the message.  Try keeping the message if it
5784 		     * might work. */
5785 		    set_keep_msg_from_hist();
5786 		    set_color_count(i);
5787 		    init_highlight(TRUE, FALSE);
5788 #ifdef DEBUG_TERMRESPONSE
5789 		    {
5790 			char buf[100];
5791 			int  r = redraw_asap(CLEAR);
5792 
5793 			sprintf(buf, "Received t_Co, redraw_asap(): %d", r);
5794 			log_tr(buf);
5795 		    }
5796 #else
5797 		    redraw_asap(CLEAR);
5798 #endif
5799 		}
5800 	    }
5801 	    else
5802 	    {
5803 		/* First delete any existing entry with the same code. */
5804 		i = find_term_bykeys(str);
5805 		if (i >= 0)
5806 		    del_termcode_idx(i);
5807 		add_termcode(name, str, ATC_FROM_TERM);
5808 	    }
5809 	}
5810     }
5811 
5812     /* May request more codes now that we received one. */
5813     ++xt_index_in;
5814     req_more_codes_from_term();
5815 }
5816 
5817 /*
5818  * Check if there are any unanswered requests and deal with them.
5819  * This is called before starting an external program or getting direct
5820  * keyboard input.  We don't want responses to be send to that program or
5821  * handled as typed text.
5822  */
5823     static void
5824 check_for_codes_from_term(void)
5825 {
5826     int		c;
5827 
5828     /* If no codes requested or all are answered, no need to wait. */
5829     if (xt_index_out == 0 || xt_index_out == xt_index_in)
5830 	return;
5831 
5832     /* Vgetc() will check for and handle any response.
5833      * Keep calling vpeekc() until we don't get any responses. */
5834     ++no_mapping;
5835     ++allow_keys;
5836     for (;;)
5837     {
5838 	c = vpeekc();
5839 	if (c == NUL)	    /* nothing available */
5840 	    break;
5841 
5842 	/* If a response is recognized it's replaced with K_IGNORE, must read
5843 	 * it from the input stream.  If there is no K_IGNORE we can't do
5844 	 * anything, break here (there might be some responses further on, but
5845 	 * we don't want to throw away any typed chars). */
5846 	if (c != K_SPECIAL && c != K_IGNORE)
5847 	    break;
5848 	c = vgetc();
5849 	if (c != K_IGNORE)
5850 	{
5851 	    vungetc(c);
5852 	    break;
5853 	}
5854     }
5855     --no_mapping;
5856     --allow_keys;
5857 }
5858 #endif
5859 
5860 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
5861 /*
5862  * Translate an internal mapping/abbreviation representation into the
5863  * corresponding external one recognized by :map/:abbrev commands;
5864  * respects the current B/k/< settings of 'cpoption'.
5865  *
5866  * This function is called when expanding mappings/abbreviations on the
5867  * command-line, and for building the "Ambiguous mapping..." error message.
5868  *
5869  * It uses a growarray to build the translation string since the
5870  * latter can be wider than the original description. The caller has to
5871  * free the string afterwards.
5872  *
5873  * Returns NULL when there is a problem.
5874  */
5875     char_u *
5876 translate_mapping(
5877     char_u	*str,
5878     int		expmap)  /* TRUE when expanding mappings on command-line */
5879 {
5880     garray_T	ga;
5881     int		c;
5882     int		modifiers;
5883     int		cpo_bslash;
5884     int		cpo_special;
5885     int		cpo_keycode;
5886 
5887     ga_init(&ga);
5888     ga.ga_itemsize = 1;
5889     ga.ga_growsize = 40;
5890 
5891     cpo_bslash = (vim_strchr(p_cpo, CPO_BSLASH) != NULL);
5892     cpo_special = (vim_strchr(p_cpo, CPO_SPECI) != NULL);
5893     cpo_keycode = (vim_strchr(p_cpo, CPO_KEYCODE) == NULL);
5894 
5895     for (; *str; ++str)
5896     {
5897 	c = *str;
5898 	if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL)
5899 	{
5900 	    modifiers = 0;
5901 	    if (str[1] == KS_MODIFIER)
5902 	    {
5903 		str++;
5904 		modifiers = *++str;
5905 		c = *++str;
5906 	    }
5907 	    if (cpo_special && cpo_keycode && c == K_SPECIAL && !modifiers)
5908 	    {
5909 		int	i;
5910 
5911 		/* try to find special key in termcodes */
5912 		for (i = 0; i < tc_len; ++i)
5913 		    if (termcodes[i].name[0] == str[1]
5914 					    && termcodes[i].name[1] == str[2])
5915 			break;
5916 		if (i < tc_len)
5917 		{
5918 		    ga_concat(&ga, termcodes[i].code);
5919 		    str += 2;
5920 		    continue; /* for (str) */
5921 		}
5922 	    }
5923 	    if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL)
5924 	    {
5925 		if (expmap && cpo_special)
5926 		{
5927 		    ga_clear(&ga);
5928 		    return NULL;
5929 		}
5930 		c = TO_SPECIAL(str[1], str[2]);
5931 		if (c == K_ZERO)	/* display <Nul> as ^@ */
5932 		    c = NUL;
5933 		str += 2;
5934 	    }
5935 	    if (IS_SPECIAL(c) || modifiers)	/* special key */
5936 	    {
5937 		if (expmap && cpo_special)
5938 		{
5939 		    ga_clear(&ga);
5940 		    return NULL;
5941 		}
5942 		ga_concat(&ga, get_special_key_name(c, modifiers));
5943 		continue; /* for (str) */
5944 	    }
5945 	}
5946 	if (c == ' ' || c == '\t' || c == Ctrl_J || c == Ctrl_V
5947 	    || (c == '<' && !cpo_special) || (c == '\\' && !cpo_bslash))
5948 	    ga_append(&ga, cpo_bslash ? Ctrl_V : '\\');
5949 	if (c)
5950 	    ga_append(&ga, c);
5951     }
5952     ga_append(&ga, NUL);
5953     return (char_u *)(ga.ga_data);
5954 }
5955 #endif
5956 
5957 #if (defined(WIN3264) && !defined(FEAT_GUI)) || defined(PROTO)
5958 static char ksme_str[20];
5959 static char ksmr_str[20];
5960 static char ksmd_str[20];
5961 
5962 /*
5963  * For Win32 console: update termcap codes for existing console attributes.
5964  */
5965     void
5966 update_tcap(int attr)
5967 {
5968     struct builtin_term *p;
5969 
5970     p = find_builtin_term(DEFAULT_TERM);
5971     sprintf(ksme_str, IF_EB("\033|%dm", ESC_STR "|%dm"), attr);
5972     sprintf(ksmd_str, IF_EB("\033|%dm", ESC_STR "|%dm"),
5973 				     attr | 0x08);  /* FOREGROUND_INTENSITY */
5974     sprintf(ksmr_str, IF_EB("\033|%dm", ESC_STR "|%dm"),
5975 				 ((attr & 0x0F) << 4) | ((attr & 0xF0) >> 4));
5976 
5977     while (p->bt_string != NULL)
5978     {
5979       if (p->bt_entry == (int)KS_ME)
5980 	  p->bt_string = &ksme_str[0];
5981       else if (p->bt_entry == (int)KS_MR)
5982 	  p->bt_string = &ksmr_str[0];
5983       else if (p->bt_entry == (int)KS_MD)
5984 	  p->bt_string = &ksmd_str[0];
5985       ++p;
5986     }
5987 }
5988 #endif
5989