1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
2 *@ TTY (command line) editing interaction.
3 *@ Because we have multiple line-editor implementations, including our own
4 *@ M(ailx) L(ine) E(ditor), change the file layout a bit and place those
5 *@ one after the other below the other externals.
7 * Copyright (c) 2012 - 2016 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
9 * Permission to use, copy, modify, and/or distribute this software for any
10 * purpose with or without fee is hereby granted, provided that the above
11 * copyright notice and this permission notice appear in all copies.
13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 #ifndef HAVE_AMALGAMATION
28 #if defined HAVE_MLE || defined HAVE_TERMCAP
29 # define a_TTY_SIGNALS
32 /* History support macros */
34 # define a_TTY_HISTFILE(S) \
36 char const *__hist_obsolete = ok_vlook(NAIL_HISTFILE);\
37 if(__hist_obsolete != NULL)\
38 OBSOLETE(_("please use *history-file* instead of *NAIL_HISTFILE*"));\
39 S = ok_vlook(history_file);\
41 (S) = __hist_obsolete;\
43 S = fexpand(S, FEXP_LOCAL | FEXP_NSHELL);\
46 # define a_TTY_HISTSIZE(V) \
48 char const *__hist_obsolete = ok_vlook(NAIL_HISTSIZE);\
49 char const *__sv = ok_vlook(history_size);\
51 if(__hist_obsolete != NULL)\
52 OBSOLETE(_("please use *history-size* instead of *NAIL_HISTSIZE*"));\
54 __sv = __hist_obsolete;\
55 if(__sv == NULL || (__rv = strtol(__sv, NULL, 10)) == 0)\
62 # define a_TTY_CHECK_ADDHIST(S,ISGABBY,NOACT) \
64 if(!(pstate & (PS_ROOT | PS_LINE_EDITOR_INIT)) ||\
65 ok_blook(line_editor_disable) ||\
66 ((ISGABBY) && !ok_blook(history_gabby)) ||\
67 spacechar(*(S)) || *(S) == '\0')\
71 # define C_HISTORY_SHARED \
76 if(ok_blook(line_editor_disable)){\
77 n_err(_("history: *line-editor-disable* is set\n"));\
80 if(!(pstate & PS_LINE_EDITOR_INIT)){\
82 assert(pstate & PS_LINE_EDITOR_INIT);\
88 if(!asccasecmp(*argv, "show"))\
90 if(!asccasecmp(*argv, "clear"))\
92 if((entry = strtol(*argv, argv, 10)) > 0 && **argv == '\0')\
95 n_err(_("Synopsis: history: %s\n"),\
96 /* Same string as in cmd_tab.h, still hoping...) */\
97 _("<show> (default), <clear> or select <NO> from editor history"));\
101 return (v == NULL ? !STOP : !OKAY); /* xxx 1:bad 0:good -- do some */
102 #endif /* HAVE_HISTORY */
105 static sighandler_type a_tty_oint
, a_tty_oquit
, a_tty_oterm
,
107 a_tty_otstp
, a_tty_ottin
, a_tty_ottou
;
111 static void a_tty_sigs_up(void), a_tty_sigs_down(void);
122 sigprocmask(SIG_BLOCK
, &nset
, &oset
);
123 a_tty_oint
= safe_signal(SIGINT
, &n_tty_signal
);
124 a_tty_oquit
= safe_signal(SIGQUIT
, &n_tty_signal
);
125 a_tty_oterm
= safe_signal(SIGTERM
, &n_tty_signal
);
126 a_tty_ohup
= safe_signal(SIGHUP
, &n_tty_signal
);
127 a_tty_otstp
= safe_signal(SIGTSTP
, &n_tty_signal
);
128 a_tty_ottin
= safe_signal(SIGTTIN
, &n_tty_signal
);
129 a_tty_ottou
= safe_signal(SIGTTOU
, &n_tty_signal
);
130 sigprocmask(SIG_SETMASK
, &oset
, NULL
);
135 a_tty_sigs_down(void){
141 sigprocmask(SIG_BLOCK
, &nset
, &oset
);
142 safe_signal(SIGINT
, a_tty_oint
);
143 safe_signal(SIGQUIT
, a_tty_oquit
);
144 safe_signal(SIGTERM
, a_tty_oterm
);
145 safe_signal(SIGHUP
, a_tty_ohup
);
146 safe_signal(SIGTSTP
, a_tty_otstp
);
147 safe_signal(SIGTTIN
, a_tty_ottin
);
148 safe_signal(SIGTTOU
, a_tty_ottou
);
149 sigprocmask(SIG_SETMASK
, &oset
, NULL
);
152 #endif /* a_TTY_SIGNALS */
154 static sigjmp_buf a_tty__actjmp
; /* TODO someday, we won't need it no more */
156 a_tty__acthdl(int s
) /* TODO someday, we won't need it no more */
158 NYD_X
; /* Signal handler */
159 termios_state_reset();
160 siglongjmp(a_tty__actjmp
, s
);
164 getapproval(char const * volatile prompt
, bool_t noninteract_default
)
166 sighandler_type
volatile oint
, ohup
;
171 if (!(options
& OPT_INTERACTIVE
)) {
173 rv
= noninteract_default
;
179 char const *quest
= noninteract_default
180 ? _("[yes]/no? ") : _("[no]/yes? ");
183 prompt
= _("Continue");
184 prompt
= savecatsep(prompt
, ' ', quest
);
187 oint
= safe_signal(SIGINT
, SIG_IGN
);
188 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
189 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
191 safe_signal(SIGINT
, &a_tty__acthdl
);
192 safe_signal(SIGHUP
, &a_tty__acthdl
);
194 if (n_lex_input(n_LEXINPUT_CTX_BASE
| n_LEXINPUT_NL_ESC
, prompt
,
195 &termios_state
.ts_linebuf
, &termios_state
.ts_linesize
, NULL
) >= 0)
196 rv
= (boolify(termios_state
.ts_linebuf
, UIZ_MAX
,
197 noninteract_default
) > 0);
199 termios_state_reset();
201 safe_signal(SIGHUP
, ohup
);
202 safe_signal(SIGINT
, oint
);
212 getuser(char const * volatile query
) /* TODO v15-compat obsolete */
214 sighandler_type
volatile oint
, ohup
;
215 char * volatile user
= NULL
;
222 oint
= safe_signal(SIGINT
, SIG_IGN
);
223 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
224 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
226 safe_signal(SIGINT
, &a_tty__acthdl
);
227 safe_signal(SIGHUP
, &a_tty__acthdl
);
229 if (n_lex_input(n_LEXINPUT_CTX_BASE
| n_LEXINPUT_NL_ESC
, query
,
230 &termios_state
.ts_linebuf
, &termios_state
.ts_linesize
, NULL
) >= 0)
231 user
= termios_state
.ts_linebuf
;
233 termios_state_reset();
235 safe_signal(SIGHUP
, ohup
);
236 safe_signal(SIGINT
, oint
);
244 getpassword(char const *query
)
246 sighandler_type
volatile oint
, ohup
;
248 char * volatile pass
= NULL
;
253 query
= _("Password: ");
254 fputs(query
, stdout
);
257 /* FIXME everywhere: tcsetattr() generates SIGTTOU when we're not in
258 * FIXME foreground pgrp, and can fail with EINTR!! also affects
259 * FIXME termios_state_reset() */
260 if (options
& OPT_TTYIN
) {
261 tcgetattr(STDIN_FILENO
, &termios_state
.ts_tios
);
262 memcpy(&tios
, &termios_state
.ts_tios
, sizeof tios
);
263 termios_state
.ts_needs_reset
= TRU1
;
264 tios
.c_iflag
&= ~(ISTRIP
);
265 tios
.c_lflag
&= ~(ECHO
| ECHOE
| ECHOK
| ECHONL
);
268 oint
= safe_signal(SIGINT
, SIG_IGN
);
269 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
270 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
272 safe_signal(SIGINT
, &a_tty__acthdl
);
273 safe_signal(SIGHUP
, &a_tty__acthdl
);
275 if (options
& OPT_TTYIN
)
276 tcsetattr(STDIN_FILENO
, TCSAFLUSH
, &tios
);
278 if (readline_restart(stdin
, &termios_state
.ts_linebuf
,
279 &termios_state
.ts_linesize
, 0) >= 0)
280 pass
= termios_state
.ts_linebuf
;
282 termios_state_reset();
283 if (options
& OPT_TTYIN
)
286 safe_signal(SIGHUP
, ohup
);
287 safe_signal(SIGINT
, oint
);
293 #endif /* HAVE_SOCKETS */
296 * MLE: the Mailx-Line-Editor, our homebrew editor
297 * (inspired from NetBSDs sh(1) and dash(1)s hetio.c).
299 * Only used in interactive mode, simply use STDIN_FILENO as point of interest.
300 * TODO . This code should be splitted in funs/raw input/bind modules.
301 * TODO . After I/O layer rewrite, also "output to STDIN_FILENO".
302 * TODO . We work with wide characters, but not for buffer takeovers and
303 * TODO cell2save()ings. This should be changed. For the former the buffer
304 * TODO thus needs to be converted to wide first, and then simply be fed in.
305 * TODO . We repaint too much. To overcome this use the same approach that my
306 * TODO terminal library uses, add a true "virtual screen line" that stores
307 * TODO the actually visible content, keep a notion of "first modified slot"
308 * TODO and "last modified slot" (including "unknown" and "any" specials),
309 * TODO update that virtual instead, then synchronize what has truly changed.
310 * TODO I.e., add an indirection layer.
311 * TODO . No BIDI support.
312 * TODO . `bind': we currently use only one lookup tree.
313 * TODO For absolute graceful behaviour in conjunction (with HAVE_TERMCAP) we
314 * TODO need a lower level tree, which possibly combines bytes into "symbolic
315 * TODO wchar_t values", into "keys" that is, as applicable, and an upper
316 * TODO layer which only works on "keys" in order to possibly combine them
317 * TODO into key sequences. We can reuse existent tree code for that.
318 * TODO We need an additional hashmap which maps termcap/terminfo names to
319 * TODO (their byte representations and) a dynamically assigned unique
320 * TODO "symbolic wchar_t value". This implies we may have incompatibilities
321 * TODO when __STDC_ISO_10646__ is not defined. Also we do need takeover-
322 * TODO bytes storage, but it can be a string_creat_auto in the line struct.
323 * TODO Until then we can run into ambiguities; in rare occasions.
326 /* To avoid memory leaks etc. with the current codebase that simply longjmp(3)s
327 * we're forced to use the very same buffer--the one that is passed through to
328 * us from the outside--to store anything we need, i.e., a "struct cell[]", and
329 * convert that on-the-fly back to the plain char* result once we're done.
330 * To simplify our live, use savestr() buffers for all other needed memory */
332 # ifdef HAVE_KEY_BINDINGS
333 /* Default *bind-timeout* key-sequence continuation timeout, in tenths of
334 * a second. Must fit in 8-bit! Update the manual upon change! */
335 # define a_TTY_BIND_TIMEOUT 2
336 # define a_TTY_BIND_TIMEOUT_MAX SI8_MAX
338 n_CTAV(a_TTY_BIND_TIMEOUT_MAX
<= UI8_MAX
);
340 /* We have a chicken-and-egg problem with `bind' and our termcap layer,
341 * because we may not initialize the latter automatically to allow users to
342 * specify *termcap-disable* and let it mean exactly that.
343 * On the other hand users can be expected to use `bind' in resource file(s).
344 * Therefore bindings which involve termcap/terminfo sequences, and which are
345 * defined before PS_STARTED signals usability of termcap/terminfo, will be
346 * (partially) delayed until tty_init() is called.
347 * And we preallocate space for the expansion of the resolved capability */
348 # define a_TTY_BIND_CAPNAME_MAX 15
349 # define a_TTY_BIND_CAPEXP_ROUNDUP 16
351 n_CTAV(ISPOW2(a_TTY_BIND_CAPEXP_ROUNDUP
));
352 n_CTA(a_TTY_BIND_CAPEXP_ROUNDUP
<= SI8_MAX
/ 2, "Variable must fit in 6-bit");
353 n_CTA(a_TTY_BIND_CAPEXP_ROUNDUP
>= 8, "Variable too small");
354 # endif /* HAVE_KEY_BINDINGS */
356 /* The maximum size (of a_tty_cell's) in a line */
357 # define a_TTY_LINE_MAX SI32_MAX
359 /* (Some more CTAs around) */
360 n_CTA(a_TTY_LINE_MAX
<= SI32_MAX
,
361 "a_TTY_LINE_MAX larger than SI32_MAX, but the MLE uses 32-bit arithmetic");
363 /* When shall the visual screen be scrolled, in % of usable screen width */
364 # define a_TTY_SCROLL_MARGIN_LEFT 15
365 # define a_TTY_SCROLL_MARGIN_RIGHT 10
367 /* fexpand() flags for expand-on-tab */
368 # define a_TTY_TAB_FEXP_FL (FEXP_FULL | FEXP_SILENT | FEXP_MULTIOK)
370 /* Columns to ripoff: outermost may not be touched, plus position indicator.
371 * Must thus be at least 1, but should be >= 1+4 to dig the position indicator
372 * that we place (if there is sufficient space) */
373 # define a_TTY_WIDTH_RIPOFF 5
375 /* The implementation of the MLE functions always exists, and is based upon
376 * the a_TTY_BIND_FUN_* constants, so most of this enum is always necessary */
377 enum a_tty_bind_flags
{
378 # ifdef HAVE_KEY_BINDINGS
379 a_TTY_BIND_RESOLVE
= 1u<<8, /* Term cap. yet needs to be resolved */
380 a_TTY_BIND_DEFUNCT
= 1u<<9, /* Unicode/term cap. used but not avail. */
381 a_TTY__BIND_MASK
= a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
,
382 /* MLE fun assigned to a one-byte-sequence: this may be used for special
383 * key-sequence bypass processing */
384 a_TTY_BIND_MLE1CNTRL
= 1u<<10,
385 a_TTY_BIND_NOCOMMIT
= 1u<<11, /* Expansion shall be editable */
388 /* MLE internal commands */
389 a_TTY_BIND_FUN_INTERNAL
= 1u<<15,
390 a_TTY__BIND_FUN_SHIFT
= 16u,
391 a_TTY__BIND_FUN_SHIFTMAX
= 24u,
392 a_TTY__BIND_FUN_MASK
= ((1u << a_TTY__BIND_FUN_SHIFTMAX
) - 1) &
393 ~((1u << a_TTY__BIND_FUN_SHIFT
) - 1),
394 # define a_TTY_BIND_FUN_REDUCE(X) \
395 (((ui32_t)(X) & a_TTY__BIND_FUN_MASK) >> a_TTY__BIND_FUN_SHIFT)
396 # define a_TTY_BIND_FUN_EXPAND(X) \
397 (((ui32_t)(X) & (a_TTY__BIND_FUN_MASK >> a_TTY__BIND_FUN_SHIFT)) << \
398 a_TTY__BIND_FUN_SHIFT)
401 a_TTY_BIND_FUN_ ## N = a_TTY_BIND_FUN_EXPAND(I),
404 a_X(GO_BWD
, 1) a_X(GO_FWD
, 2)
405 a_X(GO_WORD_BWD
, 3) a_X(GO_WORD_FWD
, 4)
406 a_X(GO_HOME
, 5) a_X(GO_END
, 6)
407 a_X(DEL_BWD
, 7) a_X(DEL_FWD
, 8)
408 a_X(SNARF_WORD_BWD
, 9) a_X(SNARF_WORD_FWD
, 10)
409 a_X(SNARF_END
, 11) a_X(SNARF_LINE
, 12)
410 a_X(HIST_BWD
, 13) a_X(HIST_FWD
, 14)
411 a_X(HIST_SRCH_BWD
, 15) a_X(HIST_SRCH_FWD
, 16)
413 a_X(QUOTE_RNDTRIP
, 18)
421 a_X(COMMIT
, 25) /* Must be last one! */
424 a_TTY__BIND_LAST
= 1<<25
426 # ifdef HAVE_KEY_BINDINGS
427 n_CTA((ui32_t
)a_TTY_BIND_RESOLVE
> (ui32_t
)n__LEXINPUT_CTX_MAX
,
428 "Bit carrier lower boundary must be raised to avoid value sharing");
430 n_CTA(a_TTY_BIND_FUN_EXPAND(a_TTY_BIND_FUN_COMMIT
) <
431 (1 << a_TTY__BIND_FUN_SHIFTMAX
),
432 "Bit carrier range must be expanded to represent necessary bits");
433 n_CTA(a_TTY__BIND_LAST
>= (1u << a_TTY__BIND_FUN_SHIFTMAX
),
434 "Bit carrier upper boundary must be raised to avoid value sharing");
435 n_CTA(UICMP(64, a_TTY__BIND_LAST
, <=, SI32_MAX
),
436 "Flag bits excess storage datatype" /* And we need one bit free */);
438 enum a_tty_fun_status
{
439 a_TTY_FUN_STATUS_OK
, /* Worked, next character */
440 a_TTY_FUN_STATUS_COMMIT
, /* Line done */
441 a_TTY_FUN_STATUS_RESTART
, /* Complete restart, reset multibyte etc. */
442 a_TTY_FUN_STATUS_END
/* End, return EOF */
445 enum a_tty_visual_flags
{
447 a_TTY_VF_MOD_CURSOR
= 1u<<0, /* Cursor moved */
448 a_TTY_VF_MOD_CONTENT
= 1u<<1, /* Content modified */
449 a_TTY_VF_MOD_DIRTY
= 1u<<2, /* Needs complete repaint */
450 a_TTY_VF_MOD_SINGLE
= 1u<<3, /* TODO Drop when indirection as above comes */
451 a_TTY_VF_REFRESH
= a_TTY_VF_MOD_DIRTY
| a_TTY_VF_MOD_CURSOR
|
452 a_TTY_VF_MOD_CONTENT
| a_TTY_VF_MOD_SINGLE
,
453 a_TTY_VF_BELL
= 1u<<8, /* Ring the bell */
454 a_TTY_VF_SYNC
= 1u<<9, /* Flush/Sync I/O channel */
456 a_TTY_VF_ALL_MASK
= a_TTY_VF_REFRESH
| a_TTY_VF_BELL
| a_TTY_VF_SYNC
,
457 a_TTY__VF_LAST
= a_TTY_VF_SYNC
460 # ifdef HAVE_KEY_BINDINGS
461 struct a_tty_bind_ctx
{
462 struct a_tty_bind_ctx
*tbc_next
;
463 char *tbc_seq
; /* quence as given (poss. re-quoted), in .tb__buf */
464 char *tbc_exp
; /* ansion, in .tb__buf */
465 /* The .tbc_seq'uence with any terminal capabilities resolved; in fact an
466 * array of structures, the first entry of which is {si32_t buf_len_iscap;}
467 * where the signed bit indicates whether the buffer is a resolved terminal
468 * capability instead of a (possibly multibyte) character. In .tbc__buf */
474 char tbc__buf
[VFIELD_SIZE(0)];
477 struct a_tty_bind_ctx_map
{
478 enum n_lexinput_flags tbcm_ctx
;
479 char const tbcm_name
[12]; /* Name of `bind' context */
481 # endif /* HAVE_KEY_BINDINGS */
483 struct a_tty_bind_default_tuple
{
484 bool_t tbdt_iskey
; /* Whether this is a control key; else termcap query */
485 char tbdt_ckey
; /* Control code */
486 ui16_t tbdt_query
; /* enum n_termcap_query (instead) */
487 char tbdt_exp
[12]; /* String or [0]=NUL/[1]=BIND_FUN_REDUCE() */
489 n_CTA(n__TERMCAP_QUERY_MAX
<= UI16_MAX
,
490 "Enumeration cannot be stored in datatype");
492 # ifdef HAVE_KEY_BINDINGS
493 struct a_tty_bind_parse_ctx
{
494 char const *tbpc_cmd
; /* Command which parses */
495 char const *tbpc_in_seq
; /* In: key sequence */
496 struct str tbpc_exp
; /* In/Out: expansion (or NULL) */
497 struct a_tty_bind_ctx
*tbpc_tbcp
; /* Out: if yet existent */
498 struct a_tty_bind_ctx
*tbpc_ltbcp
; /* Out: the one before .tbpc_tbcp */
499 char *tbpc_seq
; /* Out: normalized sequence */
500 char *tbpc_cnv
; /* Out: sequence when read(2)ing it */
503 ui32_t tbpc_cnv_align_mask
; /* For creating a_tty_bind_ctx.tbc_cnv */
504 ui32_t tbpc_flags
; /* n_lexinput_flags | a_tty_bind_flags */
507 /* Input character tree */
508 struct a_tty_bind_tree
{
509 struct a_tty_bind_tree
*tbt_sibling
; /* s at same level */
510 struct a_tty_bind_tree
*tbt_childs
; /* Sequence continues.. here */
511 struct a_tty_bind_tree
*tbt_parent
;
512 struct a_tty_bind_ctx
*tbt_bind
; /* NULL for intermediates */
513 wchar_t tbt_char
; /* acter this level represents */
514 bool_t tbt_isseq
; /* Belongs to multibyte sequence */
515 bool_t tbt_isseq_trail
; /* ..is trailing byte of it */
518 # endif /* HAVE_KEY_BINDINGS */
522 ui16_t tc_count
; /* ..of bytes */
523 ui8_t tc_width
; /* Visual width; TAB==UI8_MAX! */
524 bool_t tc_novis
; /* Don't display visually as such (control character) */
525 char tc_cbuf
[MB_LEN_MAX
* 2]; /* .. plus reset shift sequence */
529 struct a_tty_line
*tg_line
; /* To be able to access it from signal hdl */
531 struct a_tty_hist
*tg_hist
;
532 struct a_tty_hist
*tg_hist_tail
;
534 size_t tg_hist_size_max
;
536 # ifdef HAVE_KEY_BINDINGS
537 ui32_t tg_bind_cnt
; /* Overall number of bindings */
538 bool_t tg_bind_isdirty
;
539 bool_t tg_bind_isbuild
;
540 char tg_bind_shcut_cancel
[n__LEXINPUT_CTX_MAX
][5];
541 char tg_bind_shcut_prompt_char
[n__LEXINPUT_CTX_MAX
][5];
542 struct a_tty_bind_ctx
*tg_bind
[n__LEXINPUT_CTX_MAX
];
543 struct a_tty_bind_tree
*tg_bind_tree
[n__LEXINPUT_CTX_MAX
][HSHSIZE
];
545 struct termios tg_tios_old
;
546 struct termios tg_tios_new
;
548 n_CTA(n__LEXINPUT_CTX_MAX
== 2,
549 "Value results in array sizes that results in bad structure layout");
553 struct a_tty_hist
*th_older
;
554 struct a_tty_hist
*th_younger
;
555 # ifdef HAVE_BYTE_ORDER_LITTLE
556 ui32_t th_isgabby
: 1;
559 # ifndef HAVE_BYTE_ORDER_LITTLE
560 ui32_t th_isgabby
: 1;
562 char th_dat
[VFIELD_SIZE(sizeof(ui32_t
))];
567 /* Caller pointers */
569 size_t *tl_x_bufsize
;
570 /* Input processing */
571 # ifdef HAVE_KEY_BINDINGS
572 wchar_t tl_bind_takeover
; /* Leftover byte to consume next */
573 ui8_t tl_bind_timeout
; /* In-seq. inter-byte-timer, in 1/10th secs */
574 ui8_t tl__bind_dummy
[3];
575 char (*tl_bind_shcut_cancel
)[5]; /* Special _CANCEL shortcut control */
576 char (*tl_bind_shcut_prompt_char
)[5]; /* ..for _PROMPT_CHAR */
577 struct a_tty_bind_tree
*(*tl_bind_tree_hmap
)[HSHSIZE
]; /* Bind lookup tree */
578 struct a_tty_bind_tree
*tl_bind_tree
;
580 char const *tl_reenter_after_cmd
; /* `bind' cmd to exec, then re-readline */
581 /* Line data / content handling */
582 ui32_t tl_count
; /* ..of a_tty_cell's (<= a_TTY_LINE_MAX) */
583 ui32_t tl_cursor
; /* Current a_tty_cell insertion point */
585 char *cbuf
; /* *.tl_x_buf */
586 struct a_tty_cell
*cells
;
588 struct str tl_defc
; /* Current default content */
589 size_t tl_defc_cursor_byte
; /* Desired position of cursor after takeover */
590 struct str tl_savec
; /* Saved default content */
591 struct str tl_pastebuf
; /* Last snarfed data */
593 struct a_tty_hist
*tl_hist
; /* History cursor */
595 ui32_t tl_count_max
; /* ..before buffer needs to grow */
596 /* Visual data representation handling */
597 ui32_t tl_vi_flags
; /* enum a_tty_visual_flags */
598 ui32_t tl_lst_count
; /* .tl_count after last sync */
599 ui32_t tl_lst_cursor
; /* .tl_cursor after last sync */
600 /* TODO Add another indirection layer by adding a tl_phy_line of
601 * TODO a_tty_cell objects, incorporate changes in visual layer,
602 * TODO then check what _really_ has changed, sync those changes only */
603 struct a_tty_cell
const *tl_phy_start
; /* First visible cell, left border */
604 ui32_t tl_phy_cursor
; /* Physical cursor position */
605 bool_t tl_quote_rndtrip
; /* For _kht() expansion */
607 ui32_t tl_prompt_length
; /* Preclassified (TODO needed as a_tty_cell) */
608 ui32_t tl_prompt_width
;
609 char const *tl_prompt
; /* Preformatted prompt (including colours) */
610 /* .tl_pos_buf is a hack */
612 char *tl_pos_buf
; /* mle-position colour-on, [4], reset seq. */
613 char *tl_pos
; /* Address of the [4] */
617 # ifdef HAVE_KEY_BINDINGS
618 /* C99: use [INDEX]={} */
619 n_CTAV(n_LEXINPUT_CTX_BASE
== 0);
620 n_CTAV(n_LEXINPUT_CTX_COMPOSE
== 1);
621 static struct a_tty_bind_ctx_map
const
622 a_tty_bind_ctx_maps
[n__LEXINPUT_CTX_MAX
] = {
623 {n_LEXINPUT_CTX_BASE
, "base"},
624 {n_LEXINPUT_CTX_COMPOSE
, "compose"}
627 /* Special functions which our MLE provides internally.
628 * Update the manual upon change! */
629 static char const a_tty_bind_fun_names
[][24] = {
632 n_FIELD_INITI(a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## I)) "mle-" N "\0",
635 a_X(GO_BWD
, "go-bwd") a_X(GO_FWD
, "go-fwd")
636 a_X(GO_WORD_BWD
, "go-word-bwd") a_X(GO_WORD_FWD
, "go-word-fwd")
637 a_X(GO_HOME
, "go-home") a_X(GO_END
, "go-end")
638 a_X(DEL_BWD
, "del-bwd") a_X(DEL_FWD
, "del-fwd")
639 a_X(SNARF_WORD_BWD
, "snarf-word-bwd") a_X(SNARF_WORD_FWD
, "snarf-word-fwd")
640 a_X(SNARF_END
, "snarf-end") a_X(SNARF_LINE
, "snarf-line")
641 a_X(HIST_BWD
, "hist-bwd") a_X(HIST_FWD
, "hist-fwd")
642 a_X(HIST_SRCH_BWD
, "hist-srch-bwd") a_X(HIST_SRCH_FWD
, "hist-srch-fwd")
643 a_X(REPAINT
, "repaint")
644 a_X(QUOTE_RNDTRIP
, "quote-rndtrip")
645 a_X(PROMPT_CHAR
, "prompt-char")
646 a_X(COMPLETE
, "complete")
649 a_X(CANCEL
, "cancel")
651 a_X(FULLRESET
, "fullreset")
652 a_X(COMMIT
, "commit")
656 # endif /* HAVE_KEY_BINDINGS */
658 /* The default key bindings (unless disallowed). Update manual upon change!
659 * A logical subset of this table is also used if !HAVE_KEY_BINDINGS (more
660 * expensive than a switch() on control codes directly, but less redundant) */
661 static struct a_tty_bind_default_tuple
const a_tty_bind_default_tuples
[] = {
664 {TRU1, K, 0, {'\0', (char)a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## S),}},
682 a_X('Q', QUOTE_RNDTRIP
)
683 a_X('R', HIST_SRCH_BWD
)
684 a_X('S', HIST_SRCH_FWD
)
687 a_X('V', PROMPT_CHAR
)
688 a_X('W', SNARF_WORD_BWD
)
689 a_X('X', GO_WORD_FWD
)
690 a_X('Y', GO_WORD_BWD
)
697 a_X('_', SNARF_WORD_FWD
)
702 # define a_X(K,S) {TRU1, K, 0, {S}},
709 # ifdef HAVE_KEY_BINDINGS
712 {FAL0, '\0', n_TERMCAP_QUERY_ ## Q,\
713 {'\0', (char)a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## S),}},
715 a_X(key_backspace
, DEL_BWD
) a_X(key_dc
, DEL_FWD
)
716 a_X(key_eol
, SNARF_END
)
717 a_X(key_home
, GO_HOME
) a_X(key_end
, GO_END
)
718 a_X(key_left
, GO_BWD
) a_X(key_right
, GO_FWD
)
719 a_X(key_sleft
, GO_HOME
) a_X(key_sright
, GO_END
)
720 a_X(key_up
, HIST_BWD
) a_X(key_down
, HIST_FWD
)
723 # define a_X(Q,S) {FAL0, '\0', n_TERMCAP_QUERY_ ## Q, {S}},
725 a_X(key_shome
, "z0") a_X(key_send
, "z$")
726 a_X(xkey_sup
, "z0") a_X(xkey_sdown
, "z$")
727 a_X(key_ppage
, "z-") a_X(key_npage
, "z+")
728 a_X(xkey_cup
, "dotmove-") a_X(xkey_cdown
, "dotmove+")
730 # endif /* HAVE_KEY_BINDINGS */
734 static struct a_tty_global a_tty
;
736 /* Change from canonical to raw, non-canonical mode, and way back */
737 static void a_tty_term_mode(bool_t raw
);
739 /* Adjust an active raw mode to use / not use a timeout */
740 # ifdef HAVE_KEY_BINDINGS
741 static void a_tty_term_rawmode_timeout(struct a_tty_line
*tlp
, bool_t enable
);
744 /* 0-X (2), UI8_MAX == \t / TAB */
745 static ui8_t
a_tty_wcwidth(wchar_t wc
);
747 /* Memory / cell / word generics */
748 static void a_tty_check_grow(struct a_tty_line
*tlp
, ui32_t no
750 static ssize_t
a_tty_cell2dat(struct a_tty_line
*tlp
);
751 static void a_tty_cell2save(struct a_tty_line
*tlp
);
753 /* Save away data bytes of given range (max = non-inclusive) */
754 static void a_tty_copy2paste(struct a_tty_line
*tlp
, struct a_tty_cell
*tcpmin
,
755 struct a_tty_cell
*tcpmax
);
757 /* Ask user for hexadecimal number, interpret as UTF-32 */
758 static wchar_t a_tty_vinuni(struct a_tty_line
*tlp
);
760 /* Visual screen synchronization */
761 static bool_t
a_tty_vi_refresh(struct a_tty_line
*tlp
);
763 static bool_t
a_tty_vi__paint(struct a_tty_line
*tlp
);
765 /* Search for word boundary, starting at tl_cursor, in "dir"ection (<> 0).
766 * Return <0 when moving is impossible (backward direction but in position 0,
767 * forward direction but in outermost column), and relative distance to
768 * tl_cursor otherwise */
769 static si32_t
a_tty_wboundary(struct a_tty_line
*tlp
, si32_t dir
);
771 /* Most function implementations */
772 static void a_tty_khome(struct a_tty_line
*tlp
, bool_t dobell
);
773 static void a_tty_kend(struct a_tty_line
*tlp
);
774 static void a_tty_kbs(struct a_tty_line
*tlp
);
775 static void a_tty_ksnarf(struct a_tty_line
*tlp
, bool_t cplline
, bool_t dobell
);
776 static si32_t
a_tty_kdel(struct a_tty_line
*tlp
);
777 static void a_tty_kleft(struct a_tty_line
*tlp
);
778 static void a_tty_kright(struct a_tty_line
*tlp
);
779 static void a_tty_ksnarfw(struct a_tty_line
*tlp
, bool_t fwd
);
780 static void a_tty_kgow(struct a_tty_line
*tlp
, si32_t dir
);
781 static bool_t
a_tty_kother(struct a_tty_line
*tlp
, wchar_t wc
);
782 static ui32_t
a_tty_kht(struct a_tty_line
*tlp
);
785 /* Return UI32_MAX on "exhaustion" */
786 static ui32_t
a_tty_khist(struct a_tty_line
*tlp
, bool_t fwd
);
787 static ui32_t
a_tty_khist_search(struct a_tty_line
*tlp
, bool_t fwd
);
789 static ui32_t
a_tty__khist_shared(struct a_tty_line
*tlp
,
790 struct a_tty_hist
*thp
);
793 /* Handle a function */
794 static enum a_tty_fun_status
a_tty_fun(struct a_tty_line
*tlp
,
795 enum a_tty_bind_flags tbf
, size_t *len
);
798 static ssize_t
a_tty_readline(struct a_tty_line
*tlp
, size_t len
801 # ifdef HAVE_KEY_BINDINGS
802 /* Find context or -1 */
803 static enum n_lexinput_flags
a_tty_bind_ctx_find(char const *name
);
805 /* Create (or replace, if allowed) a binding */
806 static bool_t
a_tty_bind_create(struct a_tty_bind_parse_ctx
*tbpcp
,
809 /* Shared implementation to parse `bind' and `unbind' "key-sequence" and
810 * "expansion" command line arguments into something that we can work with */
811 static bool_t
a_tty_bind_parse(bool_t isbindcmd
,
812 struct a_tty_bind_parse_ctx
*tbpcp
);
814 /* Lazy resolve a termcap(5)/terminfo(5) (or *termcap*!) capability */
815 static void a_tty_bind_resolve(struct a_tty_bind_ctx
*tbcp
);
817 /* Delete an existing binding */
818 static void a_tty_bind_del(struct a_tty_bind_parse_ctx
*tbpcp
);
820 /* Life cycle of all input node trees */
821 static void a_tty_bind_tree_build(void);
822 static void a_tty_bind_tree_teardown(void);
824 static void a_tty__bind_tree_add(ui32_t hmap_idx
,
825 struct a_tty_bind_tree
*store
[HSHSIZE
],
826 struct a_tty_bind_ctx
*tbcp
);
827 static struct a_tty_bind_tree
*a_tty__bind_tree_add_wc(
828 struct a_tty_bind_tree
**treep
, struct a_tty_bind_tree
*parentp
,
829 wchar_t wc
, bool_t isseq
);
830 static void a_tty__bind_tree_free(struct a_tty_bind_tree
*tbtp
);
831 # endif /* HAVE_KEY_BINDINGS */
834 a_tty_term_mode(bool_t raw
){
835 struct termios
*tiosp
;
838 tiosp
= &a_tty
.tg_tios_old
;
842 /* Always requery the attributes, in case we've been moved from background
843 * to foreground or however else in between sessions */
844 /* XXX Always enforce ECHO and ICANON in the OLD attributes - do so as long
845 * XXX as we don't properly deal with TTIN and TTOU etc. */
846 tcgetattr(STDIN_FILENO
, tiosp
);
847 tiosp
->c_lflag
|= ECHO
| ICANON
;
849 memcpy(&a_tty
.tg_tios_new
, tiosp
, sizeof *tiosp
);
850 tiosp
= &a_tty
.tg_tios_new
;
851 tiosp
->c_cc
[VMIN
] = 1;
852 tiosp
->c_cc
[VTIME
] = 0;
853 /* Enable ^\, ^Q and ^S to be used for key bindings */
854 tiosp
->c_cc
[VQUIT
] = tiosp
->c_cc
[VSTART
] = tiosp
->c_cc
[VSTOP
] = '\0';
855 tiosp
->c_iflag
&= ~(ISTRIP
| IGNCR
);
856 tiosp
->c_lflag
&= ~(ECHO
/*| ECHOE | ECHONL */| ICANON
| IEXTEN
);
858 tcsetattr(STDIN_FILENO
, TCSADRAIN
, tiosp
);
862 # ifdef HAVE_KEY_BINDINGS
864 a_tty_term_rawmode_timeout(struct a_tty_line
*tlp
, bool_t enable
){
869 a_tty
.tg_tios_new
.c_cc
[VMIN
] = 0;
870 if((bt
= tlp
->tl_bind_timeout
) == 0)
871 bt
= a_TTY_BIND_TIMEOUT
;
872 a_tty
.tg_tios_new
.c_cc
[VTIME
] = bt
;
874 a_tty
.tg_tios_new
.c_cc
[VMIN
] = 1;
875 a_tty
.tg_tios_new
.c_cc
[VTIME
] = 0;
877 tcsetattr(STDIN_FILENO
, TCSANOW
, &a_tty
.tg_tios_new
);
880 # endif /* HAVE_KEY_BINDINGS */
883 a_tty_wcwidth(wchar_t wc
){
887 /* Special case the backslash at first */
894 rv
= ((i
= wcwidth(wc
)) > 0) ? (ui8_t
)i
: 0;
896 rv
= iswprint(wc
) ? 1 + (wc
>= 0x1100u
) : 0; /* TODO use S-CText */
904 a_tty_check_grow(struct a_tty_line
*tlp
, ui32_t no SMALLOC_DEBUG_ARGS
){
908 if(UNLIKELY((cmax
= tlp
->tl_count
+ no
) > tlp
->tl_count_max
)){
911 i
= cmax
* sizeof(struct a_tty_cell
) + 2 * sizeof(struct a_tty_cell
);
912 if(LIKELY(i
>= *tlp
->tl_x_bufsize
)){
913 hold_all_sigs(); /* XXX v15 drop */
916 *tlp
->tl_x_buf
= (srealloc
)(*tlp
->tl_x_buf
, i SMALLOC_DEBUG_ARGSCALL
);
917 rele_all_sigs(); /* XXX v15 drop */
919 tlp
->tl_count_max
= cmax
;
920 *tlp
->tl_x_bufsize
= i
;
926 a_tty_cell2dat(struct a_tty_line
*tlp
){
932 if(LIKELY((i
= tlp
->tl_count
) > 0)){
933 struct a_tty_cell
const *tcap
;
935 tcap
= tlp
->tl_line
.cells
;
937 memcpy(tlp
->tl_line
.cbuf
+ len
, tcap
->tc_cbuf
, tcap
->tc_count
);
938 len
+= tcap
->tc_count
;
939 }while(++tcap
, --i
> 0);
942 tlp
->tl_line
.cbuf
[len
] = '\0';
948 a_tty_cell2save(struct a_tty_line
*tlp
){
950 struct a_tty_cell
*tcap
;
953 tlp
->tl_savec
.s
= NULL
;
956 if(UNLIKELY(tlp
->tl_count
== 0))
959 for(tcap
= tlp
->tl_line
.cells
, len
= 0, i
= tlp
->tl_count
; i
> 0;
961 len
+= tcap
->tc_count
;
963 tlp
->tl_savec
.s
= salloc((tlp
->tl_savec
.l
= len
) +1);
965 for(tcap
= tlp
->tl_line
.cells
, len
= 0, i
= tlp
->tl_count
; i
> 0;
967 memcpy(tlp
->tl_savec
.s
+ len
, tcap
->tc_cbuf
, tcap
->tc_count
);
968 len
+= tcap
->tc_count
;
970 tlp
->tl_savec
.s
[len
] = '\0';
976 a_tty_copy2paste(struct a_tty_line
*tlp
, struct a_tty_cell
*tcpmin
,
977 struct a_tty_cell
*tcpmax
){
979 struct a_tty_cell
*tcp
;
984 for(tcp
= tcpmin
; tcp
< tcpmax
; ++tcp
)
987 tlp
->tl_pastebuf
.s
= cp
= salloc((tlp
->tl_pastebuf
.l
= l
) +1);
990 for(tcp
= tcpmin
; tcp
< tcpmax
; cp
+= l
, ++tcp
)
991 memcpy(cp
, tcp
->tc_cbuf
, l
= tcp
->tc_count
);
997 a_tty_vinuni(struct a_tty_line
*tlp
){
999 union {size_t i
; long l
;} u
;
1005 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
) ||
1006 !n_termcap_cmd(n_TERMCAP_CMD_ce
, 0, -1))
1010 struct str
const *cpre
, *csuf
;
1012 struct n_colour_pen
*cpen
;
1014 cpen
= n_colour_pen_create(n_COLOUR_ID_MLE_PROMPT
, NULL
);
1015 if((cpre
= n_colour_pen_to_str(cpen
)) != NULL
)
1016 csuf
= n_colour_reset_to_str();
1022 printf(_("%sPlease enter Unicode code point:%s "),
1023 (cpre
!= NULL
? cpre
->s
: ""), (csuf
!= NULL
? csuf
->s
: ""));
1027 buf
[sizeof(buf
) -1] = '\0';
1029 if(read(STDIN_FILENO
, &buf
[u
.i
], 1) != 1){
1030 if(errno
== EINTR
) /* xxx #if !SA_RESTART ? */
1034 if(buf
[u
.i
] == '\n')
1036 if(!hexchar(buf
[u
.i
])){
1037 char const emsg
[] = "[0-9a-fA-F]";
1039 LCTA(sizeof emsg
<= sizeof(buf
));
1040 memcpy(buf
, emsg
, sizeof emsg
);
1044 putc(buf
[u
.i
], stdout
);
1046 if(++u
.i
== sizeof buf
)
1051 u
.l
= strtol(buf
, &eptr
, 16);
1052 if(u
.l
<= 0 || u
.l
>= 0x10FFFF/* XXX magic; CText */ || *eptr
!= '\0'){
1054 n_err(_("\nInvalid input: %s\n"), buf
);
1060 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
| (wc
== '\0' ? a_TTY_VF_BELL
: 0);
1066 a_tty_vi_refresh(struct a_tty_line
*tlp
){
1070 if(tlp
->tl_vi_flags
& a_TTY_VF_BELL
){
1071 tlp
->tl_vi_flags
|= a_TTY_VF_SYNC
;
1072 if(putchar('\a') == EOF
)
1076 if(tlp
->tl_vi_flags
& a_TTY_VF_REFRESH
){
1077 /* kht may want to restore a cursor position after inserting some
1079 if(tlp
->tl_defc_cursor_byte
> 0){
1083 a_tty_khome(tlp
, FAL0
);
1085 i
= tlp
->tl_defc_cursor_byte
;
1086 tlp
->tl_defc_cursor_byte
= 0;
1087 for(j
= 0; tlp
->tl_cursor
< tlp
->tl_count
; ++j
){
1089 if((k
= tlp
->tl_line
.cells
[j
].tc_count
) > i
)
1095 if(!a_tty_vi__paint(tlp
))
1099 if(tlp
->tl_vi_flags
& a_TTY_VF_SYNC
){
1100 tlp
->tl_vi_flags
&= ~a_TTY_VF_SYNC
;
1107 tlp
->tl_vi_flags
&= ~a_TTY_VF_ALL_MASK
;
1112 clearerr(stdout
); /* xxx I/O layer rewrite */
1113 n_err(_("Visual refresh failed! Is $TERM set correctly?\n"
1114 " Setting *line-editor-disable* to get us through!\n"));
1115 ok_bset(line_editor_disable
, TRU1
);
1121 a_tty_vi__paint(struct a_tty_line
*tlp
){
1123 a_TRUE_RV
= a_TTY__VF_LAST
<<1, /* Return value bit */
1124 a_HAVE_PROMPT
= a_TTY__VF_LAST
<<2, /* Have a prompt */
1125 a_SHOW_PROMPT
= a_TTY__VF_LAST
<<3, /* Shall print the prompt */
1126 a_MOVE_CURSOR
= a_TTY__VF_LAST
<<4, /* Move visual cursor for user! */
1127 a_LEFT_MIN
= a_TTY__VF_LAST
<<5, /* On left boundary */
1128 a_RIGHT_MAX
= a_TTY__VF_LAST
<<6,
1129 a_HAVE_POSITION
= a_TTY__VF_LAST
<<7, /* Print the position indicator */
1131 /* We carry some flags over invocations (not worth a specific field) */
1132 a_VISIBLE_PROMPT
= a_TTY__VF_LAST
<<8, /* The prompt is on the screen */
1133 a_PERSIST_MASK
= a_VISIBLE_PROMPT
,
1134 a__LAST
= a_PERSIST_MASK
1137 ui32_t f
, w
, phy_wid_base
, phy_wid
, phy_base
, phy_cur
, cnt
, lstcur
, cur
,
1138 vi_left
, vi_right
, phy_nxtcur
;
1139 struct a_tty_cell
const *tccp
, *tcp_left
, *tcp_right
, *tcxp
;
1141 n_LCTA(UICMP(64, a__LAST
, <, UI32_MAX
), "Flag bits excess storage datatype");
1143 f
= tlp
->tl_vi_flags
;
1144 tlp
->tl_vi_flags
= (f
& ~(a_TTY_VF_REFRESH
| a_PERSIST_MASK
)) |
1147 if((w
= tlp
->tl_prompt_length
) > 0)
1149 f
|= a_HAVE_POSITION
;
1151 /* XXX We don't have a OnTerminalResize event (see main.c) yet, so we need
1152 * XXX to reevaluate our circumstances over and over again */
1153 /* Don't display prompt or position indicator on very small screens */
1154 if((phy_wid_base
= (ui32_t
)scrnwidth
) <= a_TTY_WIDTH_RIPOFF
)
1155 f
&= ~(a_HAVE_PROMPT
| a_HAVE_POSITION
);
1157 phy_wid_base
-= a_TTY_WIDTH_RIPOFF
;
1159 /* Disable the prompt if the screen is too small; due to lack of some
1160 * indicator simply add a second ripoff */
1161 if((f
& a_HAVE_PROMPT
) && w
+ a_TTY_WIDTH_RIPOFF
>= phy_wid_base
)
1162 f
&= ~a_HAVE_PROMPT
;
1165 phy_wid
= phy_wid_base
;
1167 phy_cur
= tlp
->tl_phy_cursor
;
1168 cnt
= tlp
->tl_count
;
1169 lstcur
= tlp
->tl_lst_cursor
;
1171 /* XXX Assume dirty screen if shrunk */
1172 if(cnt
< tlp
->tl_lst_count
)
1173 f
|= a_TTY_VF_MOD_DIRTY
;
1175 /* TODO Without HAVE_TERMCAP, it would likely be much cheaper to simply
1176 * TODO always "cr + paint + ce + ch", since ce is simulated via spaces.. */
1178 /* Quickshot: if the line is empty, possibly print prompt and out */
1180 /* In that special case dirty anything if it seems better */
1181 if((f
& a_TTY_VF_MOD_CONTENT
) || tlp
->tl_lst_count
> 0)
1182 f
|= a_TTY_VF_MOD_DIRTY
;
1184 if((f
& a_TTY_VF_MOD_DIRTY
) && phy_cur
!= 0){
1185 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
))
1190 if((f
& (a_TTY_VF_MOD_DIRTY
| a_HAVE_PROMPT
)) ==
1191 (a_TTY_VF_MOD_DIRTY
| a_HAVE_PROMPT
)){
1192 if(fputs(tlp
->tl_prompt
, stdout
) == EOF
)
1194 phy_cur
= tlp
->tl_prompt_width
+ 1;
1197 /* May need to clear former line content */
1198 if((f
& a_TTY_VF_MOD_DIRTY
) &&
1199 !n_termcap_cmd(n_TERMCAP_CMD_ce
, phy_cur
, -1))
1202 tlp
->tl_phy_start
= tlp
->tl_line
.cells
;
1206 /* Try to get an idea of the visual window */
1208 /* Find the left visual boundary */
1209 phy_wid
= (phy_wid
>> 1) + (phy_wid
>> 2);
1210 if((cur
= tlp
->tl_cursor
) == cnt
)
1213 w
= (tcp_left
= tccp
= tlp
->tl_line
.cells
+ cur
)->tc_width
;
1214 if(w
== UI8_MAX
) /* TODO yet TAB == SPC */
1216 while(tcp_left
> tlp
->tl_line
.cells
){
1217 ui16_t cw
= tcp_left
[-1].tc_width
;
1219 if(cw
== UI8_MAX
) /* TODO yet TAB == SPC */
1221 if(w
+ cw
>= phy_wid
)
1228 /* If the left hand side of our visual viewpoint consumes less than half
1229 * of the screen width, show the prompt */
1230 if(tcp_left
== tlp
->tl_line
.cells
)
1233 if((f
& (a_LEFT_MIN
| a_HAVE_PROMPT
)) == (a_LEFT_MIN
| a_HAVE_PROMPT
) &&
1234 w
+ tlp
->tl_prompt_width
< phy_wid
){
1235 phy_base
= tlp
->tl_prompt_width
;
1239 /* Then search for right boundary. We always leave the rightmost column
1240 * empty because some terminals [cw]ould wrap the line if we write into
1241 * that. XXX terminfo(5)/termcap(5) have the semi_auto_right_margin/sam/YE
1242 * XXX capability to indicate this, but we don't look at that */
1243 phy_wid
= phy_wid_base
- phy_base
;
1244 tcp_right
= tlp
->tl_line
.cells
+ cnt
;
1246 while(&tccp
[1] < tcp_right
){
1247 ui16_t cw
= tccp
[1].tc_width
;
1250 if(cw
== UI8_MAX
) /* TODO yet TAB == SPC */
1258 vi_right
= w
- vi_left
;
1260 /* If the complete line including prompt fits on the screen, show prompt */
1261 if(--tcp_right
== tccp
){
1264 /* Since we did brute-force walk also for the left boundary we may end up
1265 * in a situation were anything effectively fits on the screen, including
1266 * the prompt that is, but were we don't recognize this since we
1267 * restricted the search to fit in some visual viewpoint. Therefore try
1268 * again to extend the left boundary to overcome that */
1269 if(!(f
& a_LEFT_MIN
)){
1270 struct a_tty_cell
const *tc1p
= tlp
->tl_line
.cells
;
1271 ui32_t vil1
= vi_left
;
1273 assert(!(f
& a_SHOW_PROMPT
));
1274 w
+= tlp
->tl_prompt_width
;
1275 for(tcxp
= tcp_left
;;){
1276 ui32_t i
= tcxp
[-1].tc_width
;
1278 if(i
== UI8_MAX
) /* TODO yet TAB == SPC */
1292 /*w -= tlp->tl_prompt_width;*/
1296 tccp
= tlp
->tl_line
.cells
+ cur
;
1298 if((f
& (a_LEFT_MIN
| a_RIGHT_MAX
| a_HAVE_PROMPT
| a_SHOW_PROMPT
)) ==
1299 (a_LEFT_MIN
| a_RIGHT_MAX
| a_HAVE_PROMPT
) &&
1300 w
+ tlp
->tl_prompt_width
<= phy_wid
){
1301 phy_wid
-= (phy_base
= tlp
->tl_prompt_width
);
1305 /* Try to avoid repainting the complete line - this is possible if the
1306 * cursor "did not leave the screen" and the prompt status hasn't changed.
1307 * I.e., after clamping virtual viewpoint, compare relation to physical */
1308 if((f
& (a_TTY_VF_MOD_SINGLE
/*FIXME*/ |
1309 a_TTY_VF_MOD_CONTENT
/* xxx */ | a_TTY_VF_MOD_DIRTY
)) ||
1310 (tcxp
= tlp
->tl_phy_start
) == NULL
||
1311 tcxp
> tccp
|| tcxp
<= tcp_right
)
1312 f
|= a_TTY_VF_MOD_DIRTY
;
1314 f
|= a_TTY_VF_MOD_DIRTY
;
1316 struct a_tty_cell
const *tcyp
;
1317 si32_t cur_displace
;
1318 ui32_t phy_lmargin
, phy_rmargin
, fx
, phy_displace
;
1320 phy_lmargin
= (fx
= phy_wid
) / 100;
1321 phy_rmargin
= fx
- (phy_lmargin
* a_TTY_SCROLL_MARGIN_RIGHT
);
1322 phy_lmargin
*= a_TTY_SCROLL_MARGIN_LEFT
;
1323 fx
= (f
& (a_SHOW_PROMPT
| a_VISIBLE_PROMPT
));
1325 if(fx
== 0 || fx
== (a_SHOW_PROMPT
| a_VISIBLE_PROMPT
)){
1331 /* We know what we have to paint, start synchronizing */
1333 assert(phy_cur
== tlp
->tl_phy_cursor
);
1334 assert(phy_wid
== phy_wid_base
- phy_base
);
1335 assert(cnt
== tlp
->tl_count
);
1337 assert(lstcur
== tlp
->tl_lst_cursor
);
1338 assert(tccp
== tlp
->tl_line
.cells
+ cur
);
1340 phy_nxtcur
= phy_base
; /* FIXME only if repaint cpl. */
1342 /* Quickshot: is it only cursor movement within the visible screen? */
1343 if((f
& a_TTY_VF_REFRESH
) == a_TTY_VF_MOD_CURSOR
){
1348 /* To be able to apply some quick jump offs, clear line if possible */
1349 if(f
& a_TTY_VF_MOD_DIRTY
){
1350 /* Force complete clearance and cursor reinitialization */
1351 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
) ||
1352 !n_termcap_cmd(n_TERMCAP_CMD_ce
, 0, -1))
1354 tlp
->tl_phy_start
= tcp_left
;
1358 if((f
& (a_TTY_VF_MOD_DIRTY
| a_SHOW_PROMPT
)) && phy_cur
!= 0){
1359 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
))
1364 if(f
& a_SHOW_PROMPT
){
1365 assert(phy_base
== tlp
->tl_prompt_width
);
1366 if(fputs(tlp
->tl_prompt
, stdout
) == EOF
)
1368 phy_cur
= phy_nxtcur
;
1369 f
|= a_VISIBLE_PROMPT
;
1371 f
&= ~a_VISIBLE_PROMPT
;
1373 /* FIXME reposition cursor for paint */
1374 for(w
= phy_nxtcur
; tcp_left
<= tcp_right
; ++tcp_left
){
1377 cw
= tcp_left
->tc_width
;
1379 if(LIKELY(!tcp_left
->tc_novis
)){
1380 if(fwrite(tcp_left
->tc_cbuf
, sizeof *tcp_left
->tc_cbuf
,
1381 tcp_left
->tc_count
, stdout
) != tcp_left
->tc_count
)
1383 }else{ /* XXX Shouldn't be here <-> CText, ui_str.c */
1384 char wbuf
[8]; /* XXX magic */
1386 if(options
& OPT_UNICODE
){
1389 wc
= (ui32_t
)tcp_left
->tc_wc
;
1390 if((wc
& ~0x1Fu
) == 0)
1396 n_utf32_to_utf8(wc
, wbuf
);
1398 wbuf
[0] = '?', wbuf
[1] = '\0';
1400 if(fputs(wbuf
, stdout
) == EOF
)
1405 if(cw
== UI8_MAX
) /* TODO yet TAB == SPC */
1408 if(tcp_left
== tccp
)
1413 /* Write something position marker alike if it doesn't fit on screen */
1414 if((f
& a_HAVE_POSITION
) &&
1415 ((f
& (a_LEFT_MIN
| a_RIGHT_MAX
)) != (a_LEFT_MIN
| a_RIGHT_MAX
) ||
1416 ((f
& a_HAVE_PROMPT
) && !(f
& a_SHOW_PROMPT
)))){
1418 char *posbuf
= tlp
->tl_pos_buf
, *pos
= tlp
->tl_pos
;
1420 char posbuf
[5], *pos
= posbuf
;
1425 if(phy_cur
!= (w
= phy_wid_base
) &&
1426 !n_termcap_cmd(n_TERMCAP_CMD_ch
, phy_cur
= w
, 0))
1430 if((f
& a_LEFT_MIN
) && (!(f
& a_HAVE_PROMPT
) || (f
& a_SHOW_PROMPT
)))
1431 memcpy(pos
, "^.+", 3);
1432 else if(f
& a_RIGHT_MAX
)
1433 memcpy(pos
, ".+$", 3);
1435 /* Theoretical line length limit a_TTY_LINE_MAX, choose next power of
1436 * ten (10 ** 10) to represent 100 percent, since we don't have a macro
1437 * that generates a constant, and i don't trust the standard "u type
1438 * suffix automatically scales" calculate the large number */
1439 static char const itoa
[] = "0123456789";
1441 ui64_t
const fact100
= (ui64_t
)0x3B9ACA00u
* 10u, fact
= fact100
/ 100;
1442 ui32_t i
= (ui32_t
)(((fact100
/ cnt
) * tlp
->tl_cursor
) / fact
);
1443 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
1446 pos
[0] = ' ', pos
[1] = itoa
[i
];
1448 pos
[1] = itoa
[i
% 10], pos
[0] = itoa
[i
/ 10];
1452 if(fputs(posbuf
, stdout
) == EOF
)
1457 /* Users are used to see the cursor right of the point of interest, so we
1458 * need some further adjustments unless in special conditions. Be aware
1459 * that we may have adjusted cur at the beginning, too */
1460 if((cur
= tlp
->tl_cursor
) == 0)
1461 phy_nxtcur
= phy_base
;
1462 else if(cur
!= cnt
){
1463 ui16_t cw
= tccp
->tc_width
;
1465 if(cw
== UI8_MAX
) /* TODO yet TAB == SPC */
1471 if(((f
& a_MOVE_CURSOR
) || phy_nxtcur
!= phy_cur
) &&
1472 !n_termcap_cmd(n_TERMCAP_CMD_ch
, phy_cur
= phy_nxtcur
, 0))
1476 tlp
->tl_vi_flags
|= (f
& a_PERSIST_MASK
);
1477 tlp
->tl_lst_count
= tlp
->tl_count
;
1478 tlp
->tl_lst_cursor
= tlp
->tl_cursor
;
1479 tlp
->tl_phy_cursor
= phy_cur
;
1482 return ((f
& a_TRUE_RV
) != 0);
1489 a_tty_wboundary(struct a_tty_line
*tlp
, si32_t dir
){/* TODO shell token-wise */
1491 struct a_tty_cell
*tcap
;
1496 assert(dir
== 1 || dir
== -1);
1499 cnt
= tlp
->tl_count
;
1500 cur
= tlp
->tl_cursor
;
1505 }else if(cur
+ 1 >= cnt
)
1508 --cnt
, --cur
; /* xxx Unsigned wrapping may occur (twice), then */
1510 for(rv
= 0, tcap
= tlp
->tl_line
.cells
, anynon
= FAL0
;;){
1513 wc
= tcap
[cur
+= (ui32_t
)dir
].tc_wc
;
1514 if(iswblank(wc
) || iswpunct(wc
)){
1525 }else if(cur
+ 1 >= cnt
){
1536 a_tty_khome(struct a_tty_line
*tlp
, bool_t dobell
){
1540 if(LIKELY(tlp
->tl_cursor
> 0)){
1542 f
= a_TTY_VF_MOD_CURSOR
;
1548 tlp
->tl_vi_flags
|= f
;
1553 a_tty_kend(struct a_tty_line
*tlp
){
1557 if(LIKELY(tlp
->tl_cursor
< tlp
->tl_count
)){
1558 tlp
->tl_cursor
= tlp
->tl_count
;
1559 f
= a_TTY_VF_MOD_CURSOR
;
1563 tlp
->tl_vi_flags
|= f
;
1568 a_tty_kbs(struct a_tty_line
*tlp
){
1572 cur
= tlp
->tl_cursor
;
1573 cnt
= tlp
->tl_count
;
1575 if(LIKELY(cur
> 0)){
1576 tlp
->tl_cursor
= --cur
;
1577 tlp
->tl_count
= --cnt
;
1579 if((cnt
-= cur
) > 0){
1580 struct a_tty_cell
*tcap
;
1582 tcap
= tlp
->tl_line
.cells
+ cur
;
1583 memmove(tcap
, &tcap
[1], cnt
*= sizeof(*tcap
));
1585 f
= a_TTY_VF_MOD_CURSOR
| a_TTY_VF_MOD_CONTENT
;
1589 tlp
->tl_vi_flags
|= f
;
1594 a_tty_ksnarf(struct a_tty_line
*tlp
, bool_t cplline
, bool_t dobell
){
1601 if(cplline
&& i
> 0){
1602 tlp
->tl_cursor
= i
= 0;
1603 f
= a_TTY_VF_MOD_CURSOR
;
1606 if(LIKELY(i
< tlp
->tl_count
)){
1607 struct a_tty_cell
*tcap
;
1609 tcap
= &tlp
->tl_line
.cells
[0];
1610 a_tty_copy2paste(tlp
, &tcap
[i
], &tcap
[tlp
->tl_count
]);
1612 f
= a_TTY_VF_MOD_CONTENT
;
1616 tlp
->tl_vi_flags
|= f
;
1621 a_tty_kdel(struct a_tty_line
*tlp
){
1626 cur
= tlp
->tl_cursor
;
1627 cnt
= tlp
->tl_count
;
1628 i
= (si32_t
)(cnt
- cur
);
1631 tlp
->tl_count
= --cnt
;
1633 if(LIKELY(--i
> 0)){
1634 struct a_tty_cell
*tcap
;
1636 tcap
= &tlp
->tl_line
.cells
[cur
];
1637 memmove(tcap
, &tcap
[1], (ui32_t
)i
* sizeof(*tcap
));
1639 f
= a_TTY_VF_MOD_CONTENT
;
1640 }else if(cnt
== 0 && !ok_blook(ignoreeof
)){
1650 tlp
->tl_vi_flags
|= f
;
1656 a_tty_kleft(struct a_tty_line
*tlp
){
1660 if(LIKELY(tlp
->tl_cursor
> 0)){
1662 f
= a_TTY_VF_MOD_CURSOR
;
1666 tlp
->tl_vi_flags
|= f
;
1671 a_tty_kright(struct a_tty_line
*tlp
){
1675 if(LIKELY((i
= tlp
->tl_cursor
+ 1) <= tlp
->tl_count
)){
1677 i
= a_TTY_VF_MOD_CURSOR
;
1681 tlp
->tl_vi_flags
|= i
;
1686 a_tty_ksnarfw(struct a_tty_line
*tlp
, bool_t fwd
){
1687 struct a_tty_cell
*tcap
;
1692 if(UNLIKELY((i
= a_tty_wboundary(tlp
, (fwd
? +1 : -1))) <= 0)){
1693 f
= (i
< 0) ? a_TTY_VF_BELL
: a_TTY_VF_NONE
;
1697 cnt
= tlp
->tl_count
- (ui32_t
)i
;
1698 cur
= tlp
->tl_cursor
;
1701 tcap
= &tlp
->tl_line
.cells
[cur
];
1703 a_tty_copy2paste(tlp
, &tcap
[0], &tcap
[i
]);
1705 if((tlp
->tl_count
= cnt
) != (tlp
->tl_cursor
= cur
)){
1707 memmove(&tcap
[0], &tcap
[i
], cnt
* sizeof(*tcap
)); /* FIXME*/
1710 f
= a_TTY_VF_MOD_CURSOR
| a_TTY_VF_MOD_CONTENT
;
1712 tlp
->tl_vi_flags
|= f
;
1717 a_tty_kgow(struct a_tty_line
*tlp
, si32_t dir
){
1722 if(UNLIKELY((i
= a_tty_wboundary(tlp
, dir
)) <= 0))
1723 f
= (i
< 0) ? a_TTY_VF_BELL
: a_TTY_VF_NONE
;
1727 tlp
->tl_cursor
+= (ui32_t
)i
;
1728 f
= a_TTY_VF_MOD_CURSOR
;
1731 tlp
->tl_vi_flags
|= f
;
1736 a_tty_kother(struct a_tty_line
*tlp
, wchar_t wc
){
1737 /* Append if at EOL, insert otherwise;
1738 * since we may move around character-wise, always use a fresh ps */
1740 struct a_tty_cell tc
, *tcap
;
1748 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
1749 if(tlp
->tl_count
+ 1 >= a_TTY_LINE_MAX
){
1750 n_err(_("Stop here, we can't extend line beyond size limit\n"));
1754 /* First init a cell and see whether we'll really handle this wc */
1755 memset(&ps
, 0, sizeof ps
);
1759 l
= wcrtomb(tc
.tc_cbuf
, tc
.tc_wc
= wc
, &ps
);
1760 if(UNLIKELY(l
> MB_LEN_MAX
)){
1762 n_err(_("wcrtomb(3) error: too many multibyte character bytes\n"));
1765 tc
.tc_count
= (ui16_t
)l
;
1767 if(UNLIKELY((options
& OPT_ENC_MBSTATE
) != 0)){
1768 l
= wcrtomb(&tc
.tc_cbuf
[l
], L
'\0', &ps
);
1770 /* Only NUL terminator */;
1771 else if(LIKELY(--l
< MB_LEN_MAX
))
1772 tc
.tc_count
+= (ui16_t
)l
;
1778 /* Yes, we will! Place it in the array */
1779 tc
.tc_novis
= (iswprint(wc
) == 0);
1780 tc
.tc_width
= a_tty_wcwidth(wc
);
1781 /* TODO if(tc.tc_novis && tc.tc_width > 0) */
1783 cur
= tlp
->tl_cursor
++;
1784 cnt
= tlp
->tl_count
++ - cur
;
1785 tcap
= &tlp
->tl_line
.cells
[cur
];
1787 memmove(&tcap
[1], tcap
, cnt
* sizeof(*tcap
));
1788 f
= a_TTY_VF_MOD_CONTENT
;
1790 f
= a_TTY_VF_MOD_SINGLE
;
1791 memcpy(tcap
, &tc
, sizeof *tcap
);
1793 f
|= a_TTY_VF_MOD_CURSOR
;
1798 tlp
->tl_vi_flags
|= f
;
1804 a_tty_kht(struct a_tty_line
*tlp
){
1806 struct str orig
, bot
, topp
, sub
, exp
;
1807 struct n_string shou
, *shoup
;
1808 struct a_tty_cell
*cword
, *ctop
, *cx
;
1809 bool_t wedid
, set_savec
;
1814 shoup
= n_string_creat_auto(&shou
);
1816 /* Get plain line data; if this is the first expansion/xy, update the
1817 * very original content so that ^G gets the origin back */
1818 orig
= tlp
->tl_savec
;
1819 a_tty_cell2save(tlp
);
1820 exp
= tlp
->tl_savec
;
1822 /*tlp->tl_savec = orig;*/
1828 /* Find the word to be expanded */
1830 cword
= tlp
->tl_line
.cells
;
1831 ctop
= cword
+ tlp
->tl_cursor
;
1832 cx
= cword
+ tlp
->tl_count
;
1834 /* topp: separate data right of cursor */
1836 for(rv
= 0; ctop
< cx
; ++ctop
)
1837 rv
+= ctop
->tc_count
;
1839 topp
.s
= orig
.s
+ orig
.l
- rv
;
1840 ctop
= cword
+ tlp
->tl_cursor
;
1842 topp
.s
= NULL
, topp
.l
= 0;
1844 /* Find the shell token that corresponds to the cursor position */
1850 for(; cword
< ctop
; ++cword
)
1851 max
+= cword
->tc_count
;
1852 cword
= tlp
->tl_line
.cells
;
1860 enum n_shexp_state shs
;
1863 shs
= n_shexp_parse_token(NULL
, &sub
, n_SHEXP_PARSE_DRYRUN
|
1864 n_SHEXP_PARSE_TRIMSPACE
| n_SHEXP_PARSE_IGNORE_EMPTY
);
1868 assert(max
>= sub
.l
);
1874 if(shs
& n_SHEXP_STATE_ERR_MASK
){
1875 n_err(_("Invalid completion pattern: %.*s\n"),
1879 n_shexp_parse_token(shoup
, &exp
,
1880 n_SHEXP_PARSE_TRIMSPACE
| n_SHEXP_PARSE_IGNORE_EMPTY
);
1884 sub
.s
= n_string_cp(shoup
);
1885 sub
.l
= shoup
->s_len
;
1889 /* Leave room for "implicit asterisk" expansion, as below */
1892 sub
.s
= UNCONST("*");
1898 /* TODO Super-Heavy-Metal: block all sigs, avoid leaks on jump */
1900 exp
.s
= fexpand(sub
.s
, a_TTY_TAB_FEXP_FL
);
1903 if(exp
.s
== NULL
|| (exp
.l
= strlen(exp
.s
)) == 0)
1906 /* May be multi-return! */
1907 if(pstate
& PS_EXPAND_MULTIRESULT
)
1910 /* xxx That is not really true since the limit counts characters not bytes */
1911 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
1912 if(exp
.l
+ 1 >= a_TTY_LINE_MAX
){
1913 n_err(_("Tabulator expansion would extend beyond line size limit\n"));
1917 /* If the expansion equals the original string, assume the user wants what
1918 * is usually known as tab completion, append `*' and restart */
1919 if(!wedid
&& exp
.l
== sub
.l
&& !memcmp(exp
.s
, sub
.s
, exp
.l
)){
1920 if(sub
.s
[sub
.l
- 1] == '*')
1924 sub
.s
[sub
.l
++] = '*';
1925 sub
.s
[sub
.l
] = '\0';
1928 /* If it is a directory, and there is not yet a / appended, then we want the
1929 * user to confirm that he wants to dive in -- with only a HT */
1930 else if(wedid
&& exp
.l
== --sub
.l
&& !memcmp(exp
.s
, sub
.s
, exp
.l
) &&
1931 exp
.s
[exp
.l
- 1] != '/'){
1932 if(stat(exp
.s
, &sb
) || !S_ISDIR(sb
.st_mode
))
1934 sub
.s
= salloc(exp
.l
+ 1 +1);
1935 memcpy(sub
.s
, exp
.s
, exp
.l
);
1936 sub
.s
[exp
.l
++] = '/';
1937 sub
.s
[exp
.l
] = '\0';
1942 if(wedid
&& (wedid
= (exp
.s
[exp
.l
- 1] == '*')))
1944 exp
.s
[exp
.l
] = '\0';
1946 exp
.l
= strlen(exp
.s
= n_shexp_quote_cp(exp
.s
, tlp
->tl_quote_rndtrip
));
1947 tlp
->tl_defc_cursor_byte
= bot
.l
+ exp
.l
-1;
1952 orig
.l
= bot
.l
+ exp
.l
+ topp
.l
;
1953 orig
.s
= salloc(orig
.l
+ 5 +1);
1954 if((rv
= (ui32_t
)bot
.l
) > 0)
1955 memcpy(orig
.s
, bot
.s
, rv
);
1956 memcpy(orig
.s
+ rv
, exp
.s
, exp
.l
);
1959 memcpy(orig
.s
+ rv
, topp
.s
, topp
.l
);
1964 tlp
->tl_defc
= orig
;
1965 tlp
->tl_count
= tlp
->tl_cursor
= 0;
1966 f
|= a_TTY_VF_MOD_DIRTY
;
1968 n_string_gut(shoup
);
1969 tlp
->tl_vi_flags
|= f
;
1974 struct n_visual_info_ctx vic
;
1979 size_t locolen
, scrwid
, lnlen
, lncnt
, prefixlen
;
1982 if((fp
= Ftmp(NULL
, "tabex", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
1983 n_perr(_("tmpfile"), 0);
1987 /* How long is the result string for real? Search the NUL NUL
1988 * terminator. While here, detect the longest entry to perform an
1989 * initial allocation of our accumulator string */
1994 i
= strlen(&exp
.s
[++exp
.l
]);
1995 locolen
= MAX(locolen
, i
);
1997 }while(exp
.s
[exp
.l
+ 1] != '\0');
1999 shoup
= n_string_reserve(n_string_trunc(shoup
, 0),
2000 locolen
+ (locolen
>> 1));
2002 /* Iterate (once again) over all results */
2003 scrwid
= (size_t)scrnwidth
- ((size_t)scrnwidth
>> 3);
2005 UNINIT(prefixlen
, 0);
2006 UNINIT(lococp
, NULL
);
2008 for(isfirst
= TRU1
; exp
.l
> 0; isfirst
= FAL0
, c1
= c2
){
2010 char const *fullpath
;
2014 sub
.l
= i
= strlen(sub
.s
);
2016 if((exp
.l
-= i
) > 0)
2020 /* Separate dirname and basename */
2025 if((cp
= strrchr(fullpath
, '/')) != NULL
)
2026 prefixlen
= PTR2SIZE(++cp
- fullpath
);
2030 if(prefixlen
> 0 && prefixlen
< sub
.l
){
2035 /* We want case-insensitive sort-order */
2036 memset(&vic
, 0, sizeof vic
);
2037 vic
.vic_indat
= sub
.s
;
2038 vic
.vic_inlen
= sub
.l
;
2039 c2
= n_visual_info(&vic
, n_VISUAL_INFO_ONE_CHAR
) ? vic
.vic_waccu
2041 #ifdef HAVE_C90AMEND1
2047 /* Query longest common prefix along the way */
2052 }else if(locolen
> 0){
2053 for(i
= 0; i
< locolen
; ++i
)
2054 if(lococp
[i
] != sub
.s
[i
]){
2055 i
= field_detect_clip(i
, lococp
, i
);
2061 /* Prepare display */
2063 shoup
= n_shexp_quote(n_string_trunc(shoup
, 0), &input
,
2064 tlp
->tl_quote_rndtrip
);
2065 memset(&vic
, 0, sizeof vic
);
2066 vic
.vic_indat
= shoup
->s_dat
;
2067 vic
.vic_inlen
= shoup
->s_len
;
2068 if(!n_visual_info(&vic
,
2069 n_VISUAL_INFO_SKIP_ERRORS
| n_VISUAL_INFO_WIDTH_QUERY
))
2070 vic
.vic_vi_width
= shoup
->s_len
;
2072 /* Put on screen. Indent follow lines of same sort slot */
2075 scrwid
< lnlen
|| scrwid
- lnlen
<= vic
.vic_vi_width
+ 2){
2082 }else if(lnlen
> 0){
2087 fputs(n_string_cp(shoup
), fp
);
2088 lnlen
+= vic
.vic_vi_width
;
2090 /* Support the known file name tagging
2091 * XXX *line-editor-completion-filetype* or so */
2092 if(!lstat(fullpath
, &sb
)){
2095 if(S_ISDIR(sb
.st_mode
))
2097 else if(S_ISLNK(sb
.st_mode
))
2100 else if(S_ISFIFO(sb
.st_mode
))
2104 else if(S_ISSOCK(sb
.st_mode
))
2108 else if(S_ISCHR(sb
.st_mode
))
2112 else if(S_ISBLK(sb
.st_mode
))
2125 page_or_print(fp
, lncnt
);
2129 n_string_gut(shoup
);
2131 /* A common prefix of 0 means we cannot provide the user any auto
2132 * completed characters */
2136 /* Otherwise we can, so extend the visual line content by the common
2137 * prefix (in a reversible way) */
2138 (exp
.s
= UNCONST(lococp
))[locolen
] = '\0';
2140 exp
.l
= (locolen
+= prefixlen
);
2142 /* XXX Indicate that there is multiple choice */
2143 /* XXX f |= a_TTY_VF_BELL; -> *line-editor-completion-bell*? or so */
2149 /* If we've provided a default content, but failed to expand, there is
2150 * nothing we can "revert to": drop that default again */
2152 tlp
->tl_savec
.s
= NULL
;
2153 tlp
->tl_savec
.l
= 0;
2160 # ifdef HAVE_HISTORY
2162 a_tty__khist_shared(struct a_tty_line
*tlp
, struct a_tty_hist
*thp
){
2166 if(LIKELY((tlp
->tl_hist
= thp
) != NULL
)){
2167 tlp
->tl_defc
.s
= savestrbuf(thp
->th_dat
, thp
->th_len
);
2168 rv
= tlp
->tl_defc
.l
= thp
->th_len
;
2169 f
= (tlp
->tl_count
> 0) ? a_TTY_VF_MOD_DIRTY
: a_TTY_VF_NONE
;
2170 tlp
->tl_count
= tlp
->tl_cursor
= 0;
2176 tlp
->tl_vi_flags
|= f
;
2182 a_tty_khist(struct a_tty_line
*tlp
, bool_t fwd
){
2183 struct a_tty_hist
*thp
;
2187 /* If we're not in history mode yet, save line content;
2188 * also, disallow forward search, then, and, of course, bail unless we
2189 * do have any history at all */
2190 if((thp
= tlp
->tl_hist
) == NULL
){
2193 if((thp
= a_tty
.tg_hist
) == NULL
)
2195 a_tty_cell2save(tlp
);
2199 thp
= fwd
? thp
->th_younger
: thp
->th_older
;
2201 rv
= a_tty__khist_shared(tlp
, thp
);
2207 a_tty_khist_search(struct a_tty_line
*tlp
, bool_t fwd
){
2208 struct str orig_savec
;
2209 struct a_tty_hist
*thp
;
2215 /* We cannot complete an empty line */
2216 if(UNLIKELY(tlp
->tl_count
== 0)){
2217 /* XXX The upcoming hard reset would restore a set savec buffer,
2218 * XXX so forcefully reset that. A cleaner solution would be to
2219 * XXX reset it whenever a restore is no longer desired */
2220 tlp
->tl_savec
.s
= NULL
;
2221 tlp
->tl_savec
.l
= 0;
2225 if((thp
= tlp
->tl_hist
) == NULL
){
2226 if((thp
= a_tty
.tg_hist
) == NULL
)
2228 /* We don't support wraparound, searching forward must always step */
2230 thp
= thp
->th_younger
;
2231 orig_savec
.s
= NULL
;
2232 orig_savec
.l
= 0; /* silence CC */
2233 }else if((thp
= (fwd
? thp
->th_younger
: thp
->th_older
)) == NULL
)
2236 orig_savec
= tlp
->tl_savec
;
2238 if(orig_savec
.s
== NULL
)
2239 a_tty_cell2save(tlp
);
2241 for(; thp
!= NULL
; thp
= (fwd
? thp
->th_younger
: thp
->th_older
))
2242 if(is_prefix(tlp
->tl_savec
.s
, thp
->th_dat
))
2245 if(orig_savec
.s
!= NULL
)
2246 tlp
->tl_savec
= orig_savec
;
2248 rv
= a_tty__khist_shared(tlp
, thp
);
2252 # endif /* HAVE_HISTORY */
2254 static enum a_tty_fun_status
2255 a_tty_fun(struct a_tty_line
*tlp
, enum a_tty_bind_flags tbf
, size_t *len
){
2256 enum a_tty_fun_status rv
;
2259 rv
= a_TTY_FUN_STATUS_OK
;
2261 # define a_X(N) a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## N)
2262 switch(a_TTY_BIND_FUN_REDUCE(tbf
)){
2264 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2272 case a_X(GO_WORD_BWD
):
2273 a_tty_kgow(tlp
, -1);
2275 case a_X(GO_WORD_FWD
):
2276 a_tty_kgow(tlp
, +1);
2279 a_tty_khome(tlp
, TRU1
);
2288 if(a_tty_kdel(tlp
) < 0)
2289 rv
= a_TTY_FUN_STATUS_END
;
2291 case a_X(SNARF_WORD_BWD
):
2292 a_tty_ksnarfw(tlp
, FAL0
);
2294 case a_X(SNARF_WORD_FWD
):
2295 a_tty_ksnarfw(tlp
, TRU1
);
2297 case a_X(SNARF_END
):
2298 a_tty_ksnarf(tlp
, FAL0
, TRU1
);
2300 case a_X(SNARF_LINE
):
2301 a_tty_ksnarf(tlp
, TRU1
, (tlp
->tl_count
== 0));
2305 # ifdef HAVE_HISTORY
2306 if(tlp
->tl_hist
!= NULL
){
2307 bool_t isfwd
= TRU1
;
2313 # ifdef HAVE_HISTORY
2316 if((*len
= a_tty_khist(tlp
, isfwd
)) != UI32_MAX
){
2317 rv
= a_TTY_FUN_STATUS_RESTART
;
2323 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2326 case a_X(HIST_SRCH_FWD
):{
2327 # ifdef HAVE_HISTORY
2328 bool_t isfwd
= TRU1
;
2333 case a_X(HIST_SRCH_BWD
):
2334 # ifdef HAVE_HISTORY
2337 if((*len
= a_tty_khist_search(tlp
, isfwd
)) != UI32_MAX
){
2338 rv
= a_TTY_FUN_STATUS_RESTART
;
2343 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2348 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
2350 case a_X(QUOTE_RNDTRIP
):
2351 tlp
->tl_quote_rndtrip
= !tlp
->tl_quote_rndtrip
;
2353 case a_X(PROMPT_CHAR
):{
2356 if((wc
= a_tty_vinuni(tlp
)) > 0)
2357 a_tty_kother(tlp
, wc
);
2360 if((*len
= a_tty_kht(tlp
)) > 0)
2361 rv
= a_TTY_FUN_STATUS_RESTART
;
2365 if(tlp
->tl_pastebuf
.l
> 0)
2366 *len
= (tlp
->tl_defc
= tlp
->tl_pastebuf
).l
;
2368 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2373 /* Normally this just causes a restart and thus resets the state
2375 if(tlp
->tl_savec
.l
== 0 && tlp
->tl_defc
.l
== 0){
2377 # ifdef HAVE_KEY_BINDINGS
2378 tlp
->tl_bind_takeover
= '\0';
2380 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2381 rv
= a_TTY_FUN_STATUS_RESTART
;
2385 if(tlp
->tl_count
== 0 && tlp
->tl_savec
.l
== 0 && tlp
->tl_defc
.l
== 0){
2386 # ifdef HAVE_KEY_BINDINGS
2387 tlp
->tl_bind_takeover
= '\0';
2389 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
| a_TTY_VF_BELL
;
2392 case a_X(FULLRESET
):
2393 tlp
->tl_savec
.s
= tlp
->tl_defc
.s
= NULL
;
2394 tlp
->tl_savec
.l
= tlp
->tl_defc
.l
= 0;
2395 tlp
->tl_defc_cursor_byte
= 0;
2396 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2399 # ifdef HAVE_KEY_BINDINGS
2400 tlp
->tl_bind_takeover
= '\0';
2402 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
2403 tlp
->tl_cursor
= tlp
->tl_count
= 0;
2404 # ifdef HAVE_HISTORY
2405 tlp
->tl_hist
= NULL
;
2407 if((*len
= tlp
->tl_savec
.l
) != 0){
2408 tlp
->tl_defc
= tlp
->tl_savec
;
2409 tlp
->tl_savec
.s
= NULL
;
2410 tlp
->tl_savec
.l
= 0;
2412 *len
= tlp
->tl_defc
.l
;
2413 rv
= a_TTY_FUN_STATUS_RESTART
;
2418 rv
= a_TTY_FUN_STATUS_COMMIT
;
2428 a_tty_readline(struct a_tty_line
*tlp
, size_t len SMALLOC_DEBUG_ARGS
){
2429 /* We want to save code, yet we may have to incorporate a lines'
2430 * default content and / or default input to switch back to after some
2431 * history movement; let "len > 0" mean "have to display some data
2432 * buffer" -> a_BUFMODE, and only otherwise read(2) it */
2434 char cbuf_base
[MB_LEN_MAX
* 2], *cbuf
, *cbufp
;
2436 struct a_tty_bind_tree
*tbtp
;
2438 enum a_tty_bind_flags tbf
;
2439 enum {a_NONE
, a_WAS_HERE
= 1<<0, a_BUFMODE
= 1<<1, a_MAYBEFUN
= 1<<2,
2440 a_TIMEOUT
= 1<<3, a_TIMEOUT_EXPIRED
= 1<<4,
2441 a_TIMEOUT_MASK
= a_TIMEOUT
| a_TIMEOUT_EXPIRED
,
2442 a_READ_LOOP_MASK
= ~(a_WAS_HERE
| a_MAYBEFUN
| a_TIMEOUT_MASK
)
2447 # ifdef HAVE_KEY_BINDINGS
2448 assert(tlp
->tl_bind_takeover
== '\0');
2451 memset(ps
, 0, sizeof ps
);
2454 tlp
->tl_vi_flags
|= a_TTY_VF_REFRESH
| a_TTY_VF_SYNC
;
2461 /* Ensure we have valid pointers, and room for grow */
2462 a_tty_check_grow(tlp
, ((flags
& a_BUFMODE
) ? (ui32_t
)len
: 1)
2463 SMALLOC_DEBUG_ARGSCALL
);
2465 /* Handle visual state flags, except in buffer mode */
2466 if(!(flags
& a_BUFMODE
) && (tlp
->tl_vi_flags
& a_TTY_VF_ALL_MASK
))
2467 if(!a_tty_vi_refresh(tlp
)){
2472 /* Ready for messing around.
2473 * Normal read(2)? Else buffer mode: speed this one up */
2474 if(!(flags
& a_BUFMODE
)){
2478 assert(tlp
->tl_defc
.l
> 0 && tlp
->tl_defc
.s
!= NULL
);
2479 assert(tlp
->tl_defc
.l
>= len
);
2481 cbuf
= tlp
->tl_defc
.s
+ (tlp
->tl_defc
.l
- len
);
2485 /* Read in the next complete multibyte character */
2487 # ifdef HAVE_KEY_BINDINGS
2488 struct a_tty_bind_tree
*xtbtp
;
2492 struct a_tty_bind_tree
*tbtp
;
2495 isp_head
= isp
= NULL
;
2498 for(flags
&= a_READ_LOOP_MASK
;;){
2499 # ifdef HAVE_KEY_BINDINGS
2500 if(!(flags
& a_BUFMODE
) && tlp
->tl_bind_takeover
!= '\0'){
2501 wc
= tlp
->tl_bind_takeover
;
2502 tlp
->tl_bind_takeover
= '\0';
2506 if(!(flags
& a_BUFMODE
)){
2507 /* Let me at least once dream of iomon(itor), timer with
2508 * one-shot, enwrapped with key_event and key_sequence_event,
2509 * all driven by an event_loop */
2510 /* TODO v15 Until we have SysV signal handling all through we
2511 * TODO need to temporarily adjust our BSD signal handler with
2512 * TODO a SysV one, here */
2513 n_sighdl_t otstp
, ottin
, ottou
;
2515 otstp
= n_signal(SIGTSTP
, &n_tty_signal
);
2516 ottin
= n_signal(SIGTTIN
, &n_tty_signal
);
2517 ottou
= n_signal(SIGTTOU
, &n_tty_signal
);
2518 # ifdef HAVE_KEY_BINDINGS
2519 flags
&= ~a_TIMEOUT_MASK
;
2520 if(isp
!= NULL
&& (tbtp
= isp
->tbtp
)->tbt_isseq
&&
2521 !tbtp
->tbt_isseq_trail
){
2522 a_tty_term_rawmode_timeout(tlp
, TRU1
);
2527 while((rv
= read(STDIN_FILENO
, cbufp
, 1)) < 1){
2530 if((tlp
->tl_vi_flags
& a_TTY_VF_MOD_DIRTY
) &&
2531 !a_tty_vi_refresh(tlp
))
2538 # ifdef HAVE_KEY_BINDINGS
2539 /* Timeout expiration */
2541 assert(flags
& a_TIMEOUT
);
2542 assert(isp
!= NULL
);
2543 a_tty_term_rawmode_timeout(tlp
, FAL0
);
2545 /* Something "atomic" broke. Maybe the current one can
2546 * also be terminated already, by itself? xxx really? */
2547 if((tbtp
= isp
->tbtp
)->tbt_bind
!= NULL
){
2548 tlp
->tl_bind_takeover
= wc
;
2552 /* Or, maybe there is a second path without a timeout;
2553 * this should be covered by .tbt_isseq_trail, but then
2554 * again a single-layer implementation cannot "know" */
2555 for(xtbtp
= tbtp
; (xtbtp
= xtbtp
->tbt_sibling
) != NULL
;)
2556 if(xtbtp
->tbt_char
== tbtp
->tbt_char
){
2557 assert(!xtbtp
->tbt_isseq
);
2560 /* Lay down on read(2)? */
2565 # endif /* HAVE_KEY_BINDINGS */
2568 # ifdef HAVE_KEY_BINDINGS
2569 if(flags
& a_TIMEOUT
)
2570 a_tty_term_rawmode_timeout(tlp
, FAL0
);
2572 safe_signal(SIGTSTP
, otstp
);
2573 safe_signal(SIGTTIN
, ottin
);
2574 safe_signal(SIGTTOU
, ottou
);
2581 rv
= (ssize_t
)mbrtowc(&wc
, cbuf
, PTR2SIZE(cbufp
- cbuf
), &ps
[0]);
2583 /* Any error during buffer mode can only result in a hard
2584 * reset; Otherwise, if it's a hard error, or if too many
2585 * redundant shift sequences overflow our buffer: perform
2587 if((flags
& a_BUFMODE
) || rv
== -1 ||
2588 sizeof cbuf_base
== PTR2SIZE(cbufp
- cbuf
)){
2589 a_tty_fun(tlp
, a_TTY_BIND_FUN_FULLRESET
, &len
);
2592 /* Otherwise, due to the way we deal with the buffer, we need
2593 * to restore the mbstate_t from before this conversion */
2601 /* Normal read(2)ing is subject to detection of key-bindings */
2602 # ifdef HAVE_KEY_BINDINGS
2603 if(!(flags
& a_BUFMODE
)){
2604 /* Check for special bypass functions before we try to embed
2605 * this character into the tree */
2606 if(n_uasciichar(wc
)){
2610 for(c
= (char)wc
, cp
= &(*tlp
->tl_bind_shcut_prompt_char
)[0];
2613 wc
= a_tty_vinuni(tlp
);
2618 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2622 if(n_uasciichar(wc
))
2623 flags
|= a_MAYBEFUN
;
2625 flags
&= ~a_MAYBEFUN
;
2627 /* Search for this character in the bind tree */
2628 tbtp
= (isp
!= NULL
) ? isp
->tbtp
->tbt_childs
2629 : (*tlp
->tl_bind_tree_hmap
)[wc
% HSHSIZE
];
2630 for(; tbtp
!= NULL
; tbtp
= tbtp
->tbt_sibling
){
2631 if(tbtp
->tbt_char
== wc
){
2634 /* If this one cannot continue we're likely finished! */
2635 if(tbtp
->tbt_childs
== NULL
){
2636 assert(tbtp
->tbt_bind
!= NULL
);
2637 tbf
= tbtp
->tbt_bind
->tbc_flags
;
2641 /* This needs to read more characters */
2642 nisp
= salloc(sizeof *nisp
);
2643 if((nisp
->last
= isp
) == NULL
)
2650 flags
&= ~a_WAS_HERE
;
2657 /* Was there a binding active, but couldn't be continued? */
2659 /* A binding had a timeout, it didn't expire, but we saw
2660 * something non-expected. Something "atomic" broke.
2661 * Maybe there is a second path without a timeout, that
2662 * continues like we've seen it. I.e., it may just have been
2663 * the user, typing two fast. We definitely want to allow
2664 * bindings like \e,d etc. to succeed: users are so used to
2665 * them that a timeout cannot be the mechanism to catch up!
2666 * A single-layer implementation cannot "know" */
2667 if((tbtp
= isp
->tbtp
)->tbt_isseq
&& (isp
->last
== NULL
||
2668 !(xtbtp
= isp
->last
->tbtp
)->tbt_isseq
||
2669 xtbtp
->tbt_isseq_trail
)){
2670 for(xtbtp
= (tbtp
= isp
->tbtp
);
2671 (xtbtp
= xtbtp
->tbt_sibling
) != NULL
;)
2672 if(xtbtp
->tbt_char
== tbtp
->tbt_char
){
2673 assert(!xtbtp
->tbt_isseq
);
2678 tlp
->tl_bind_takeover
= wc
;
2683 /* Check for CANCEL shortcut now */
2684 if(flags
& a_MAYBEFUN
){
2688 for(c
= (char)wc
, cp
= &(*tlp
->tl_bind_shcut_cancel
)[0];
2691 tbf
= a_TTY_BIND_FUN_INTERNAL
|a_TTY_BIND_FUN_CANCEL
;
2696 /* So: maybe the current sequence can be terminated here? */
2697 if((tbtp
= isp
->tbtp
)->tbt_bind
!= NULL
){
2699 tbf
= tbtp
->tbt_bind
->tbc_flags
;
2701 if(tbf
& a_TTY_BIND_FUN_INTERNAL
){
2702 switch(a_tty_fun(tlp
, tbf
, &len
)){
2703 case a_TTY_FUN_STATUS_OK
:
2705 case a_TTY_FUN_STATUS_COMMIT
:
2707 case a_TTY_FUN_STATUS_RESTART
:
2709 case a_TTY_FUN_STATUS_END
:
2713 }else if(tbtp
->tbt_bind
->tbc_flags
& a_TTY_BIND_NOCOMMIT
){
2714 struct a_tty_bind_ctx
*tbcp
;
2716 tbcp
= tbtp
->tbt_bind
;
2717 memcpy(tlp
->tl_defc
.s
= salloc(
2718 (tlp
->tl_defc
.l
= len
= tbcp
->tbc_exp_len
) +1),
2719 tbcp
->tbc_exp
, tbcp
->tbc_exp_len
+1);
2722 tlp
->tl_reenter_after_cmd
= tbtp
->tbt_bind
->tbc_exp
;
2728 /* Otherwise take over all chars "as is" */
2730 for(; isp_head
!= NULL
; isp_head
= isp_head
->next
)
2731 if(a_tty_kother(tlp
, isp_head
->tbtp
->tbt_char
)){
2734 /* And the current one too */
2737 # endif /* HAVE_KEY_BINDINGS */
2739 if((flags
& a_BUFMODE
) && (len
-= (size_t)rv
) == 0){
2740 /* Buffer mode completed */
2741 tlp
->tl_defc
.s
= NULL
;
2743 flags
&= ~a_BUFMODE
;
2748 # ifndef HAVE_KEY_BINDINGS
2749 /* Don't interpret control bytes during buffer mode.
2750 * Otherwise, if it's a control byte check whether it is a MLE
2751 * function. Remarks: initially a complete duplicate to be able to
2752 * switch(), later converted to simply iterate over (an #ifdef'd
2753 * subset of) the MLE default_tuple table in order to have "a SPOF" */
2754 if(cbuf
== cbuf_base
&& n_uasciichar(wc
) && cntrlchar((char)wc
)){
2755 struct a_tty_bind_default_tuple
const *tbdtp
;
2758 for(c
= (char)wc
^ 0x40, tbdtp
= a_tty_bind_default_tuples
;
2759 PTRCMP(tbdtp
, <, &a_tty_bind_default_tuples
[
2760 NELEM(a_tty_bind_default_tuples
)]);
2762 /* Assert default_tuple table is properly subset'ed */
2763 assert(tbdtp
->tbdt_iskey
);
2764 if(tbdtp
->tbdt_ckey
== c
){
2765 if(tbdtp
->tbdt_exp
[0] == '\0'){
2766 enum a_tty_bind_flags tbf
;
2768 tbf
= a_TTY_BIND_FUN_EXPAND((ui8_t
)tbdtp
->tbdt_exp
[1]);
2769 switch(a_tty_fun(tlp
, tbf
, &len
)){
2770 case a_TTY_FUN_STATUS_OK
:
2772 case a_TTY_FUN_STATUS_COMMIT
:
2774 case a_TTY_FUN_STATUS_RESTART
:
2776 case a_TTY_FUN_STATUS_END
:
2781 tlp
->tl_reenter_after_cmd
= tbdtp
->tbdt_exp
;
2787 # endif /* !HAVE_KEY_BINDINGS */
2789 # ifdef HAVE_KEY_BINDINGS
2792 if(a_tty_kother(tlp
, wc
)){
2793 /* Don't clear the history during buffer mode.. */
2794 # ifdef HAVE_HISTORY
2795 if(!(flags
& a_BUFMODE
) && cbuf
== cbuf_base
)
2796 tlp
->tl_hist
= NULL
;
2802 /* We have a completed input line, convert the struct cell data to its
2803 * plain character equivalent */
2805 rv
= a_tty_cell2dat(tlp
);
2813 # ifdef HAVE_KEY_BINDINGS
2814 static enum n_lexinput_flags
2815 a_tty_bind_ctx_find(char const *name
){
2816 enum n_lexinput_flags rv
;
2817 struct a_tty_bind_ctx_map
const *tbcmp
;
2820 tbcmp
= a_tty_bind_ctx_maps
;
2821 do if(!asccasecmp(tbcmp
->tbcm_name
, name
)){
2822 rv
= tbcmp
->tbcm_ctx
;
2824 }while(PTRCMP(++tbcmp
, <, &a_tty_bind_ctx_maps
[NELEM(a_tty_bind_ctx_maps
)]));
2826 rv
= (enum n_lexinput_flags
)-1;
2833 a_tty_bind_create(struct a_tty_bind_parse_ctx
*tbpcp
, bool_t replace
){
2834 struct a_tty_bind_ctx
*tbcp
;
2840 if(!a_tty_bind_parse(TRU1
, tbpcp
))
2843 /* Since we use a single buffer for it all, need to replace as such */
2844 if(tbpcp
->tbpc_tbcp
!= NULL
){
2847 a_tty_bind_del(tbpcp
);
2848 }else if(a_tty
.tg_bind_cnt
== UI32_MAX
){
2849 n_err(_("`bind': maximum number of bindings already established\n"));
2856 tbcp
= smalloc(sizeof(*tbcp
) -
2857 VFIELD_SIZEOF(struct a_tty_bind_ctx
, tbc__buf
) +
2858 tbpcp
->tbpc_seq_len
+ tbpcp
->tbpc_exp
.l
+
2859 MAX(sizeof(si32_t
), sizeof(wc_t
)) + tbpcp
->tbpc_cnv_len
+3);
2860 if(tbpcp
->tbpc_ltbcp
!= NULL
){
2861 tbcp
->tbc_next
= tbpcp
->tbpc_ltbcp
->tbc_next
;
2862 tbpcp
->tbpc_ltbcp
->tbc_next
= tbcp
;
2864 enum n_lexinput_flags lif
= tbpcp
->tbpc_flags
& n__LEXINPUT_CTX_MASK
;
2866 tbcp
->tbc_next
= a_tty
.tg_bind
[lif
];
2867 a_tty
.tg_bind
[lif
] = tbcp
;
2869 memcpy(tbcp
->tbc_seq
= &tbcp
->tbc__buf
[0],
2870 tbpcp
->tbpc_seq
, i
= (tbcp
->tbc_seq_len
= tbpcp
->tbpc_seq_len
) +1);
2871 memcpy(tbcp
->tbc_exp
= &tbcp
->tbc__buf
[i
],
2872 tbpcp
->tbpc_exp
.s
, j
= (tbcp
->tbc_exp_len
= tbpcp
->tbpc_exp
.l
) +1);
2874 i
= (i
+ tbpcp
->tbpc_cnv_align_mask
) & ~tbpcp
->tbpc_cnv_align_mask
;
2875 memcpy(tbcp
->tbc_cnv
= &tbcp
->tbc__buf
[i
],
2876 tbpcp
->tbpc_cnv
, (tbcp
->tbc_cnv_len
= tbpcp
->tbpc_cnv_len
) +1);
2877 tbcp
->tbc_flags
= tbpcp
->tbpc_flags
;
2880 /* Directly resolve any termcap(5) symbol if we are already setup */
2881 if((pstate
& PS_STARTED
) &&
2882 (tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)) ==
2884 a_tty_bind_resolve(tbcp
);
2886 ++a_tty
.tg_bind_cnt
;
2887 /* If this binding is usable invalidate the key input lookup trees */
2888 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
2889 a_tty
.tg_bind_isdirty
= TRU1
;
2897 a_tty_bind_parse(bool_t isbindcmd
, struct a_tty_bind_parse_ctx
*tbpcp
){
2898 enum{a_TRUE_RV
= a_TTY__BIND_LAST
<<1};
2900 struct n_visual_info_ctx vic
;
2901 struct str shin_save
, shin
;
2902 struct n_string shou
, *shoup
;
2909 ui32_t cnv_len
; /* High bit set if a termap to be resolved */
2910 ui32_t calc_cnv_len
; /* Ditto, but aligned etc. */
2911 ui8_t kse__dummy
[4];
2915 n_LCTA(UICMP(64, a_TRUE_RV
, <, UI32_MAX
),
2916 "Flag bits excess storage datatype");
2918 f
= n_LEXINPUT_NONE
;
2919 shoup
= n_string_creat_auto(&shou
);
2922 /* Parse the key-sequence */
2923 for(shin
.s
= UNCONST(tbpcp
->tbpc_in_seq
), shin
.l
= UIZ_MAX
;;){
2925 enum n_shexp_state shs
;
2928 shs
= n_shexp_parse_token(shoup
, &shin
,
2929 n_SHEXP_PARSE_TRUNC
| n_SHEXP_PARSE_TRIMSPACE
|
2930 n_SHEXP_PARSE_IGNORE_EMPTY
| n_SHEXP_PARSE_IFS_IS_COMMA
);
2931 if(shs
& n_SHEXP_STATE_ERR_UNICODE
){
2932 f
|= a_TTY_BIND_DEFUNCT
;
2933 if(isbindcmd
&& (options
& OPT_D_V
))
2934 n_err(_("`%s': \\uNICODE not available in locale: %s\n"),
2935 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
2937 if((shs
& n_SHEXP_STATE_ERR_MASK
) & ~n_SHEXP_STATE_ERR_UNICODE
){
2938 n_err(_("`%s': failed to parse key-sequence: %s\n"),
2939 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
2942 if((shs
& (n_SHEXP_STATE_OUTPUT
| n_SHEXP_STATE_STOP
)) ==
2946 ep
= salloc(sizeof *ep
);
2953 if(!(shs
& n_SHEXP_STATE_ERR_UNICODE
)){
2954 i
= strlen(ep
->seq_dat
= n_shexp_quote_cp(n_string_cp(shoup
), TRU1
));
2955 if(i
>= SI32_MAX
- 1)
2957 ep
->seq_len
= (ui32_t
)i
;
2959 /* Otherwise use the original buffer, _we_ can only quote it the wrong
2960 * way (e.g., an initial $'\u3a' becomes '\u3a'), _then_ */
2961 if((i
= shin_save
.l
- shin
.l
) >= SI32_MAX
- 1)
2963 ep
->seq_len
= (ui32_t
)i
;
2964 ep
->seq_dat
= savestrbuf(shin_save
.s
, i
);
2967 memset(&vic
, 0, sizeof vic
);
2968 vic
.vic_inlen
= shoup
->s_len
;
2969 vic
.vic_indat
= shoup
->s_dat
;
2970 if(!n_visual_info(&vic
,
2971 n_VISUAL_INFO_WOUT_CREATE
| n_VISUAL_INFO_WOUT_SALLOC
)){
2972 n_err(_("`%s': key-sequence seems to contain invalid "
2973 "characters: %s: %s\n"),
2974 tbpcp
->tbpc_cmd
, n_string_cp(shoup
), tbpcp
->tbpc_in_seq
);
2975 f
|= a_TTY_BIND_DEFUNCT
;
2977 }else if(vic
.vic_woulen
== 0 ||
2978 vic
.vic_woulen
>= (SI32_MAX
- 2) / sizeof(wc_t
)){
2980 n_err(_("`%s': length of key-sequence unsupported: %s: %s\n"),
2981 tbpcp
->tbpc_cmd
, n_string_cp(shoup
), tbpcp
->tbpc_in_seq
);
2982 f
|= a_TTY_BIND_DEFUNCT
;
2985 ep
->cnv_dat
= vic
.vic_woudat
;
2986 ep
->cnv_len
= (ui32_t
)vic
.vic_woulen
;
2988 /* A termcap(5)/terminfo(5) identifier? */
2989 if(ep
->cnv_len
> 1 && ep
->cnv_dat
[0] == ':'){
2990 i
= --ep
->cnv_len
, ++ep
->cnv_dat
;
2991 # ifndef HAVE_TERMCAP
2992 if(options
& OPT_D_V
)
2993 n_err(_("`%s': no termcap(5)/terminfo(5) support: %s: %s\n"),
2994 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
2995 f
|= a_TTY_BIND_DEFUNCT
;
2997 if(i
> a_TTY_BIND_CAPNAME_MAX
){
2998 n_err(_("`%s': termcap(5)/terminfo(5) name too long: %s: %s\n"),
2999 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
3000 f
|= a_TTY_BIND_DEFUNCT
;
3003 /* (We store it as char[]) */
3004 if((ui32_t
)ep
->cnv_dat
[--i
] & ~0x7Fu
){
3005 n_err(_("`%s': invalid termcap(5)/terminfo(5) name content: "
3007 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
3008 f
|= a_TTY_BIND_DEFUNCT
;
3011 ep
->cnv_len
|= SI32_MIN
; /* Needs resolve */
3012 f
|= a_TTY_BIND_RESOLVE
;
3015 if(shs
& n_SHEXP_STATE_STOP
)
3021 n_err(_("`%s': effectively empty key-sequence: %s\n"),
3022 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3026 if(isbindcmd
) /* (Or always, just "1st time init") */
3027 tbpcp
->tbpc_cnv_align_mask
= MAX(sizeof(si32_t
), sizeof(wc_t
)) - 1;
3030 struct a_tty_bind_ctx
*ltbcp
, *tbcp
;
3031 char *cpbase
, *cp
, *cnv
;
3034 /* Unite the parsed sequence(s) into single string representations */
3035 for(sl
= cl
= 0, tail
= head
; tail
!= NULL
; tail
= tail
->next
){
3036 sl
+= tail
->seq_len
+ 1;
3041 /* Preserve room for terminal capabilities to be resolved.
3042 * Above we have ensured the buffer will fit in these calculations */
3043 if((i
= tail
->cnv_len
) & SI32_MIN
){
3045 * struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[]+NUL;}
3047 * struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;} */
3048 n_LCTAV(ISPOW2(a_TTY_BIND_CAPEXP_ROUNDUP
));
3049 n_LCTA(a_TTY_BIND_CAPEXP_ROUNDUP
>= sizeof(wc_t
),
3050 "Aligning on this constant doesn't properly align wc_t");
3053 i
+= sizeof(si32_t
);
3054 if(i
< a_TTY_BIND_CAPEXP_ROUNDUP
)
3055 i
= (i
+ (a_TTY_BIND_CAPEXP_ROUNDUP
- 1)) &
3056 ~(a_TTY_BIND_CAPEXP_ROUNDUP
- 1);
3058 /* struct{si32_t buf_len_iscap; wc_t buf[]+NUL;} */
3060 i
+= sizeof(si32_t
) + sizeof(wc_t
); /* (buf_len_iscap, NUL) */
3062 if(tail
->cnv_len
& SI32_MIN
){
3063 tail
->cnv_len
&= SI32_MAX
;
3066 tail
->calc_cnv_len
= (ui32_t
)i
;
3070 tbpcp
->tbpc_seq_len
= sl
;
3071 tbpcp
->tbpc_cnv_len
= cl
;
3075 j
= i
= sl
+ 1; /* Room for comma separator */
3077 i
= (i
+ tbpcp
->tbpc_cnv_align_mask
) & ~tbpcp
->tbpc_cnv_align_mask
;
3081 tbpcp
->tbpc_seq
= cp
= cpbase
= salloc(i
);
3082 tbpcp
->tbpc_cnv
= cnv
= &cpbase
[j
];
3085 for(tail
= head
; tail
!= NULL
; tail
= tail
->next
){
3086 memcpy(cp
, tail
->seq_dat
, tail
->seq_len
);
3087 cp
+= tail
->seq_len
;
3091 char * const save_cnv
= cnv
;
3093 UNALIGN(si32_t
*,cnv
)[0] = (si32_t
)(i
= tail
->calc_cnv_len
);
3094 cnv
+= sizeof(si32_t
);
3097 * struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[];}
3099 * struct{si32_t buf_len_iscap; si32_t cap_len; char buf[];} */
3100 UNALIGN(si32_t
*,cnv
)[0] = tail
->cnv_len
;
3101 cnv
+= sizeof(si32_t
);
3103 i
= tail
->cnv_len
* sizeof(wc_t
);
3104 memcpy(cnv
, tail
->cnv_dat
, i
);
3106 *UNALIGN(wc_t
*,cnv
) = '\0';
3108 cnv
= save_cnv
+ (tail
->calc_cnv_len
& SI32_MAX
);
3113 /* Search for a yet existing identical mapping */
3114 for(ltbcp
= NULL
, tbcp
= a_tty
.tg_bind
[tbpcp
->tbpc_flags
]; tbcp
!= NULL
;
3115 ltbcp
= tbcp
, tbcp
= tbcp
->tbc_next
)
3116 if(tbcp
->tbc_seq_len
== sl
&& !memcmp(tbcp
->tbc_seq
, cpbase
, sl
)){
3117 tbpcp
->tbpc_tbcp
= tbcp
;
3120 tbpcp
->tbpc_ltbcp
= ltbcp
;
3121 tbpcp
->tbpc_flags
|= (f
& a_TTY__BIND_MASK
);
3124 /* Create single string expansion if so desired */
3128 exp
= tbpcp
->tbpc_exp
.s
;
3130 i
= tbpcp
->tbpc_exp
.l
;
3131 if(i
> 0 && exp
[i
- 1] == '@'){
3133 if(!blankspacechar(exp
[i
- 1]))
3139 exp
[tbpcp
->tbpc_exp
.l
= i
] = '\0';
3140 tbpcp
->tbpc_flags
|= a_TTY_BIND_NOCOMMIT
;
3143 /* It may map to an internal MLE command! */
3144 for(i
= 0; i
< NELEM(a_tty_bind_fun_names
); ++i
)
3145 if(!asccasecmp(exp
, a_tty_bind_fun_names
[i
])){
3146 tbpcp
->tbpc_flags
|= a_TTY_BIND_FUN_EXPAND(i
) |
3147 a_TTY_BIND_FUN_INTERNAL
|
3148 (head
->next
== NULL
? a_TTY_BIND_MLE1CNTRL
: 0);
3149 if((options
& OPT_D_V
) && (tbpcp
->tbpc_flags
& a_TTY_BIND_NOCOMMIT
))
3150 n_err(_("`%s': MLE commands can't be made editable via @: %s\n"),
3151 tbpcp
->tbpc_cmd
, exp
);
3152 tbpcp
->tbpc_flags
&= ~a_TTY_BIND_NOCOMMIT
;
3157 f
|= a_TRUE_RV
; /* TODO because we only now true and false; DEFUNCT.. */
3159 n_string_gut(shoup
);
3161 return (f
& a_TRUE_RV
) != 0;
3165 a_tty_bind_resolve(struct a_tty_bind_ctx
*tbcp
){
3166 char capname
[a_TTY_BIND_CAPNAME_MAX
+1];
3167 struct n_termcap_value tv
;
3169 bool_t isfirst
; /* TODO For now: first char must be control! */
3174 for(cp
= tbcp
->tbc_cnv
, isfirst
= TRU1
, len
= tbcp
->tbc_cnv_len
;
3175 len
> 0; isfirst
= FAL0
, cp
= next
){
3179 i
= UNALIGN(si32_t
*,cp
)[0];
3186 /* struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[];} */
3187 cp
+= sizeof(si32_t
);
3188 i
= UNALIGN(si32_t
*,cp
)[0];
3189 cp
+= sizeof(si32_t
);
3190 for(j
= 0; j
< i
; ++j
)
3191 capname
[j
] = UNALIGN(wc_t
*,cp
)[j
];
3195 /* Use generic lookup mechanism if not a known query */
3199 tq
= n_termcap_query_for_name(capname
, n_TERMCAP_CAPTYPE_STRING
);
3201 tv
.tv_data
.tvd_string
= capname
;
3202 tq
= n__TERMCAP_QUERY_MAX
;
3205 if(tq
< 0 || !n_termcap_query(tq
, &tv
)){
3206 if(options
& OPT_D_V
)
3207 n_err(_("`bind': unknown or unsupported capability: %s: %s\n"),
3208 capname
, tbcp
->tbc_seq
);
3209 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3214 /* struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;} */
3218 i
= strlen(tv
.tv_data
.tvd_string
);
3219 if(/*i > SI32_MAX ||*/ i
>= PTR2SIZE(next
- cp
)){
3220 if(options
& OPT_D_V
)
3221 n_err(_("`bind': capability expansion too long: %s: %s\n"),
3222 capname
, tbcp
->tbc_seq
);
3223 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3226 if(options
& OPT_D_V
)
3227 n_err(_("`bind': empty capability expansion: %s: %s\n"),
3228 capname
, tbcp
->tbc_seq
);
3229 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3231 }else if(isfirst
&& !cntrlchar(*tv
.tv_data
.tvd_string
)){
3232 if(options
& OPT_D_V
)
3233 n_err(_("`bind': capability expansion doesn't start with "
3234 "control: %s: %s\n"), capname
, tbcp
->tbc_seq
);
3235 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3238 UNALIGN(si32_t
*,cp
)[-1] = (si32_t
)i
;
3239 memcpy(cp
, tv
.tv_data
.tvd_string
, i
);
3247 a_tty_bind_del(struct a_tty_bind_parse_ctx
*tbpcp
){
3248 struct a_tty_bind_ctx
*ltbcp
, *tbcp
;
3251 tbcp
= tbpcp
->tbpc_tbcp
;
3253 if((ltbcp
= tbpcp
->tbpc_ltbcp
) != NULL
)
3254 ltbcp
->tbc_next
= tbcp
->tbc_next
;
3256 a_tty
.tg_bind
[tbpcp
->tbpc_flags
] = tbcp
->tbc_next
;
3259 --a_tty
.tg_bind_cnt
;
3260 a_tty
.tg_bind_isdirty
= TRU1
;
3265 a_tty_bind_tree_build(void){
3269 for(i
= 0; i
< n__LEXINPUT_CTX_MAX
; ++i
){
3270 struct a_tty_bind_ctx
*tbcp
;
3271 n_LCTAV(n_LEXINPUT_CTX_BASE
== 0);
3273 /* Somewhat wasteful, but easier to handle: simply clone the entire
3274 * primary key onto the secondary one, then only modify it */
3275 for(tbcp
= a_tty
.tg_bind
[n_LEXINPUT_CTX_BASE
]; tbcp
!= NULL
;
3276 tbcp
= tbcp
->tbc_next
)
3277 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
3278 a_tty__bind_tree_add(n_LEXINPUT_CTX_BASE
, &a_tty
.tg_bind_tree
[i
][0],
3281 if(i
!= n_LEXINPUT_CTX_BASE
)
3282 for(tbcp
= a_tty
.tg_bind
[i
]; tbcp
!= NULL
; tbcp
= tbcp
->tbc_next
)
3283 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
3284 a_tty__bind_tree_add(i
, &a_tty
.tg_bind_tree
[i
][0], tbcp
);
3287 a_tty
.tg_bind_isbuild
= TRU1
;
3292 a_tty_bind_tree_teardown(void){
3296 memset(&a_tty
.tg_bind_shcut_cancel
[0], 0,
3297 sizeof(a_tty
.tg_bind_shcut_cancel
));
3298 memset(&a_tty
.tg_bind_shcut_prompt_char
[0], 0,
3299 sizeof(a_tty
.tg_bind_shcut_prompt_char
));
3301 for(i
= 0; i
< n__LEXINPUT_CTX_MAX
; ++i
)
3302 for(j
= 0; j
< HSHSIZE
; ++j
)
3303 a_tty__bind_tree_free(a_tty
.tg_bind_tree
[i
][j
]);
3304 memset(&a_tty
.tg_bind_tree
[0], 0, sizeof(a_tty
.tg_bind_tree
));
3306 a_tty
.tg_bind_isdirty
= a_tty
.tg_bind_isbuild
= FAL0
;
3311 a_tty__bind_tree_add(ui32_t hmap_idx
, struct a_tty_bind_tree
*store
[HSHSIZE
],
3312 struct a_tty_bind_ctx
*tbcp
){
3315 struct a_tty_bind_tree
*ntbtp
;
3321 for(cnvdat
= tbcp
->tbc_cnv
, cnvlen
= tbcp
->tbc_cnv_len
; cnvlen
> 0;){
3322 union {wchar_t const *wp
; char const *cp
;} u
;
3325 /* {si32_t buf_len_iscap;} */
3326 entlen
= *UNALIGN(si32_t
const*,cnvdat
);
3328 if(entlen
& SI32_MIN
){
3329 /* struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;}
3330 * Note that empty capabilities result in DEFUNCT */
3331 for(u
.cp
= (char const*)&UNALIGN(si32_t
const*,cnvdat
)[2];
3332 *u
.cp
!= '\0'; ++u
.cp
)
3333 ntbtp
= a_tty__bind_tree_add_wc(store
, ntbtp
, *u
.cp
, TRU1
);
3334 assert(ntbtp
!= NULL
);
3335 ntbtp
->tbt_isseq_trail
= TRU1
;
3338 /* struct{si32_t buf_len_iscap; wc_t buf[]+NUL;} */
3341 u
.wp
= (wchar_t const*)&UNALIGN(si32_t
const*,cnvdat
)[1];
3343 /* May be a special shortcut function? */
3344 if(ntbtp
== NULL
&& (tbcp
->tbc_flags
& a_TTY_BIND_MLE1CNTRL
)){
3348 ctx
= tbcp
->tbc_flags
& n__LEXINPUT_CTX_MAX
;
3349 fun
= tbcp
->tbc_flags
& a_TTY__BIND_FUN_MASK
;
3351 if(fun
== a_TTY_BIND_FUN_CANCEL
){
3352 for(cp
= &a_tty
.tg_bind_shcut_cancel
[ctx
][0];
3353 PTRCMP(cp
, <, &a_tty
.tg_bind_shcut_cancel
[ctx
]
3354 [NELEM(a_tty
.tg_bind_shcut_cancel
[ctx
]) - 1]); ++cp
)
3359 }else if(fun
== a_TTY_BIND_FUN_PROMPT_CHAR
){
3360 for(cp
= &a_tty
.tg_bind_shcut_prompt_char
[ctx
][0];
3361 PTRCMP(cp
, <, &a_tty
.tg_bind_shcut_prompt_char
[ctx
]
3362 [NELEM(a_tty
.tg_bind_shcut_prompt_char
[ctx
]) - 1]);
3371 isseq
= (u
.wp
[1] != '\0');
3372 for(; *u
.wp
!= '\0'; ++u
.wp
)
3373 ntbtp
= a_tty__bind_tree_add_wc(store
, ntbtp
, *u
.wp
, isseq
);
3375 ntbtp
->tbt_isseq_trail
= TRU1
;
3382 /* Should have been rendered defunctional at first instead */
3383 assert(ntbtp
!= NULL
);
3384 ntbtp
->tbt_bind
= tbcp
;
3388 static struct a_tty_bind_tree
*
3389 a_tty__bind_tree_add_wc(struct a_tty_bind_tree
**treep
,
3390 struct a_tty_bind_tree
*parentp
, wchar_t wc
, bool_t isseq
){
3391 struct a_tty_bind_tree
*tbtp
, *xtbtp
;
3394 if(parentp
== NULL
){
3395 treep
+= wc
% HSHSIZE
;
3397 /* Having no parent also means that the tree slot is possibly empty */
3398 for(tbtp
= *treep
; tbtp
!= NULL
;
3399 parentp
= tbtp
, tbtp
= tbtp
->tbt_sibling
){
3400 if(tbtp
->tbt_char
!= wc
)
3402 if(tbtp
->tbt_isseq
== isseq
)
3404 /* isseq MUST be linked before !isseq, so record this "parent"
3405 * sibling, but continue searching for now */
3408 /* Otherwise it is impossible that we'll find what we look for */
3411 while((tbtp
= tbtp
->tbt_sibling
) != NULL
)
3412 assert(tbtp
->tbt_char
!= wc
);
3418 tbtp
= smalloc(sizeof *tbtp
);
3419 memset(tbtp
, 0, sizeof *tbtp
);
3420 tbtp
->tbt_char
= wc
;
3421 tbtp
->tbt_isseq
= isseq
;
3423 if(parentp
== NULL
){
3424 tbtp
->tbt_sibling
= *treep
;
3427 tbtp
->tbt_sibling
= parentp
->tbt_sibling
;
3428 parentp
->tbt_sibling
= tbtp
;
3431 if((tbtp
= *(treep
= &parentp
->tbt_childs
)) != NULL
){
3432 for(;; tbtp
= xtbtp
){
3433 if(tbtp
->tbt_char
== wc
){
3434 if(tbtp
->tbt_isseq
== isseq
)
3436 /* isseq MUST be linked before, so it is impossible that we'll
3437 * find what we look for */
3440 while((tbtp
= tbtp
->tbt_sibling
) != NULL
)
3441 assert(tbtp
->tbt_char
!= wc
);
3448 if((xtbtp
= tbtp
->tbt_sibling
) == NULL
){
3449 treep
= &tbtp
->tbt_sibling
;
3455 xtbtp
= smalloc(sizeof *xtbtp
);
3456 memset(xtbtp
, 0, sizeof *xtbtp
);
3457 xtbtp
->tbt_parent
= parentp
;
3458 xtbtp
->tbt_char
= wc
;
3459 xtbtp
->tbt_isseq
= isseq
;
3469 a_tty__bind_tree_free(struct a_tty_bind_tree
*tbtp
){
3471 while(tbtp
!= NULL
){
3472 struct a_tty_bind_tree
*tmp
;
3474 if((tmp
= tbtp
->tbt_childs
) != NULL
)
3475 a_tty__bind_tree_free(tmp
);
3477 tmp
= tbtp
->tbt_sibling
;
3483 # endif /* HAVE_KEY_BINDINGS */
3489 if(ok_blook(line_editor_disable
))
3492 /* Load the history file */
3493 # ifdef HAVE_HISTORY
3499 size_t lsize
, cnt
, llen
;
3502 a_tty
.tg_hist_size
= 0;
3503 a_tty
.tg_hist_size_max
= (size_t)hs
;
3511 hold_all_sigs(); /* TODO too heavy, yet we may jump even here!? */
3512 f
= fopen(v
, "r"); /* TODO HISTFILE LOAD: use linebuf pool */
3515 (void)n_file_lock(fileno(f
), FLT_READ
, 0,0, UIZ_MAX
);
3517 assert(!(pstate
& PS_ROOT
));
3518 pstate
|= PS_ROOT
; /* Allow calling addhist() */
3521 cnt
= (size_t)fsize(f
);
3522 while(fgetline(&lbuf
, &lsize
, &cnt
, &llen
, f
, FAL0
) != NULL
){
3523 if(llen
> 0 && lbuf
[llen
- 1] == '\n')
3524 lbuf
[--llen
] = '\0';
3525 if(llen
== 0 || lbuf
[0] == '#') /* xxx comments? noone! */
3530 isgabby
= (lbuf
[0] == '*');
3531 n_tty_addhist(lbuf
+ isgabby
, isgabby
);
3540 rele_all_sigs(); /* XXX remove jumps */
3542 # endif /* HAVE_HISTORY */
3544 /* Force immediate resolve for anything which follows */
3545 pstate
|= PS_LINE_EDITOR_INIT
;
3547 # ifdef HAVE_KEY_BINDINGS
3548 /* `bind's (and `unbind's) done from within resource files couldn't be
3549 * performed for real since our termcap driver wasn't yet loaded, and we
3550 * can't perform automatic init since the user may have disallowed so */
3552 struct a_tty_bind_ctx
*tbcp
;
3553 enum n_lexinput_flags lif
;
3555 for(lif
= 0; lif
< n__LEXINPUT_CTX_MAX
; ++lif
)
3556 for(tbcp
= a_tty
.tg_bind
[lif
]; tbcp
!= NULL
; tbcp
= tbcp
->tbc_next
)
3557 if((tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)) ==
3559 a_tty_bind_resolve(tbcp
);
3562 /* And we want to (try to) install some default key bindings */
3563 if(!ok_blook(line_editor_no_defaults
)){
3565 struct a_tty_bind_parse_ctx tbpc
;
3566 struct a_tty_bind_default_tuple
const *tbdtp
;
3568 buf
[0] = '$', buf
[1] = '\'', buf
[2] = '\\', buf
[3] = 'c',
3569 buf
[5] = '\'', buf
[6] = '\0';
3570 for(tbdtp
= a_tty_bind_default_tuples
;
3572 &a_tty_bind_default_tuples
[NELEM(a_tty_bind_default_tuples
)]);
3574 memset(&tbpc
, 0, sizeof tbpc
);
3575 tbpc
.tbpc_cmd
= "bind";
3576 if(tbdtp
->tbdt_iskey
){
3577 buf
[4] = tbdtp
->tbdt_ckey
;
3578 tbpc
.tbpc_in_seq
= buf
;
3580 tbpc
.tbpc_in_seq
= savecatsep(":", '\0',
3581 n_termcap_name_of_query(tbdtp
->tbdt_query
));
3582 tbpc
.tbpc_exp
.s
= UNCONST(tbdtp
->tbdt_exp
[0] == '\0'
3583 ? a_tty_bind_fun_names
[(ui8_t
)tbdtp
->tbdt_exp
[1]]
3585 tbpc
.tbpc_exp
.l
= strlen(tbpc
.tbpc_exp
.s
);
3586 tbpc
.tbpc_flags
= n_LEXINPUT_CTX_BASE
;
3587 /* ..but don't want to overwrite any user settings */
3588 a_tty_bind_create(&tbpc
, FAL0
);
3591 # endif /* HAVE_KEY_BINDINGS */
3598 n_tty_destroy(void){
3601 if(!(pstate
& PS_LINE_EDITOR_INIT
))
3604 # ifdef HAVE_HISTORY
3608 struct a_tty_hist
*thp
;
3620 dogabby
= ok_blook(history_gabby_persist
);
3622 if((thp
= a_tty
.tg_hist
) != NULL
)
3623 for(; thp
->th_older
!= NULL
; thp
= thp
->th_older
)
3624 if((dogabby
|| !thp
->th_isgabby
) && --hs
== 0)
3627 hold_all_sigs(); /* TODO too heavy, yet we may jump even here!? */
3628 f
= fopen(v
, "w"); /* TODO temporary + rename?! */
3631 (void)n_file_lock(fileno(f
), FLT_WRITE
, 0,0, UIZ_MAX
);
3633 for(; thp
!= NULL
; thp
= thp
->th_younger
){
3634 if(dogabby
|| !thp
->th_isgabby
){
3637 fwrite(thp
->th_dat
, sizeof *thp
->th_dat
, thp
->th_len
, f
);
3643 rele_all_sigs(); /* XXX remove jumps */
3645 # endif /* HAVE_HISTORY */
3647 # if defined HAVE_KEY_BINDINGS && defined HAVE_DEBUG
3648 c_unbind(UNCONST("* *"));
3652 memset(&a_tty
, 0, sizeof a_tty
);
3654 DBG( pstate
&= ~PS_LINE_EDITOR_INIT
; )
3660 n_tty_signal(int sig
){
3661 sigset_t nset
, oset
;
3662 NYD_X
; /* Signal handler */
3667 /* We don't deal with SIGWINCH, yet get called from main.c.
3668 * Note this case might get called even if !PS_LINE_EDITOR_INIT */
3672 a_tty_term_mode(FAL0
);
3673 n_TERMCAP_SUSPEND(TRU1
);
3677 sigaddset(&nset
, sig
);
3678 sigprocmask(SIG_UNBLOCK
, &nset
, &oset
);
3680 /* When we come here we'll continue editing, so reestablish */
3681 sigprocmask(SIG_BLOCK
, &oset
, (sigset_t
*)NULL
);
3684 n_TERMCAP_RESUME(TRU1
);
3685 a_tty_term_mode(TRU1
);
3686 a_tty
.tg_line
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
3692 (n_tty_readline
)(enum n_lexinput_flags lif
, char const *prompt
,
3693 char **linebuf
, size_t *linesize
, size_t n SMALLOC_DEBUG_ARGS
){
3694 struct a_tty_line tl
;
3698 ui32_t plen
, pwidth
;
3700 char const *orig_prompt
;
3704 assert(!ok_blook(line_editor_disable
));
3705 if(!(pstate
& PS_LINE_EDITOR_INIT
))
3707 assert(pstate
& PS_LINE_EDITOR_INIT
);
3709 orig_prompt
= prompt
;
3710 /* xxx Likely overkill: avoid "bind base a,b,c set-line-editor-disable"
3711 * xxx not being honoured at once: call n_lex_input() instead of goto */
3712 # ifndef HAVE_KEY_BINDINGS
3714 prompt
= orig_prompt
;
3718 n_colour_env_create(n_COLOUR_CTX_MLE
, FAL0
);
3721 /* Classify prompt */
3725 size_t i
= strlen(prompt
);
3727 if(i
== 0 || i
>= UI32_MAX
)
3730 /* TODO *prompt* is in multibyte and not in a_tty_cell, therefore
3731 * TODO we cannot handle it in parts, it's all or nothing.
3732 * TODO Later (S-CText, SysV signals) the prompt should be some global
3733 * TODO carrier thing, fully evaluated and passed around as UI-enabled
3734 * TODO string, then we can print it character by character */
3735 struct n_visual_info_ctx vic
;
3737 memset(&vic
, 0, sizeof vic
);
3738 vic
.vic_indat
= prompt
;
3740 if(n_visual_info(&vic
, n_VISUAL_INFO_WIDTH_QUERY
)){
3741 pwidth
= (ui32_t
)vic
.vic_vi_width
;
3744 n_err(_("Character set error in evaluation of prompt\n"));
3752 struct n_colour_pen
*ccp
;
3753 struct str
const *sp
;
3755 if(prompt
!= NULL
&&
3756 (ccp
= n_colour_pen_create(n_COLOUR_ID_MLE_PROMPT
, NULL
)) != NULL
&&
3757 (sp
= n_colour_pen_to_str(ccp
)) != NULL
){
3758 char const *ccol
= sp
->s
;
3760 if((sp
= n_colour_reset_to_str()) != NULL
){
3761 size_t l1
= strlen(ccol
), l2
= strlen(sp
->s
);
3762 ui32_t nplen
= (ui32_t
)(l1
+ plen
+ l2
);
3763 char *nprompt
= salloc(nplen
+1);
3765 memcpy(nprompt
, ccol
, l1
);
3766 memcpy(&nprompt
[l1
], prompt
, plen
);
3767 memcpy(&nprompt
[l1
+= plen
], sp
->s
, ++l2
);
3774 /* .tl_pos_buf is a hack */
3775 posbuf
= pos
= NULL
;
3776 if((ccp
= n_colour_pen_create(n_COLOUR_ID_MLE_POSITION
, NULL
)) != NULL
&&
3777 (sp
= n_colour_pen_to_str(ccp
)) != NULL
){
3778 char const *ccol
= sp
->s
;
3780 if((sp
= n_colour_reset_to_str()) != NULL
){
3781 size_t l1
= strlen(ccol
), l2
= strlen(sp
->s
);
3783 posbuf
= salloc(l1
+ 4 + l2
+1);
3784 memcpy(posbuf
, ccol
, l1
);
3786 memcpy(&pos
[4], sp
->s
, ++l2
);
3790 posbuf
= pos
= salloc(4 +1);
3794 # endif /* HAVE_COLOUR */
3796 memset(&tl
, 0, sizeof tl
);
3798 # ifdef HAVE_KEY_BINDINGS
3800 char const *cp
= ok_vlook(bind_timeout
);
3805 if((ul
= strtoul(cp
, NULL
, 0)) > 0 &&
3806 /* Convert to tenths of a second, unfortunately */
3807 (ul
= (ul
+ 99) / 100) <= a_TTY_BIND_TIMEOUT_MAX
)
3808 tl
.tl_bind_timeout
= (ui8_t
)ul
;
3809 else if(options
& OPT_D_V
)
3810 n_err(_("Ignoring invalid *bind-timeout*: %s\n"), cp
);
3814 if(a_tty
.tg_bind_isdirty
)
3815 a_tty_bind_tree_teardown();
3816 if(a_tty
.tg_bind_cnt
> 0 && !a_tty
.tg_bind_isbuild
)
3817 a_tty_bind_tree_build();
3818 tl
.tl_bind_tree_hmap
= &a_tty
.tg_bind_tree
[lif
& n__LEXINPUT_CTX_MASK
];
3819 tl
.tl_bind_shcut_cancel
=
3820 &a_tty
.tg_bind_shcut_cancel
[lif
& n__LEXINPUT_CTX_MASK
];
3821 tl
.tl_bind_shcut_prompt_char
=
3822 &a_tty
.tg_bind_shcut_prompt_char
[lif
& n__LEXINPUT_CTX_MASK
];
3823 # endif /* HAVE_KEY_BINDINGS */
3825 if((tl
.tl_prompt
= prompt
) != NULL
){ /* XXX not re-evaluated */
3826 tl
.tl_prompt_length
= plen
;
3827 tl
.tl_prompt_width
= pwidth
;
3830 tl
.tl_pos_buf
= posbuf
;
3834 tl
.tl_line
.cbuf
= *linebuf
;
3836 tl
.tl_defc
.s
= savestrbuf(*linebuf
, n
);
3839 tl
.tl_x_buf
= linebuf
;
3840 tl
.tl_x_bufsize
= linesize
;
3842 a_tty
.tg_line
= &tl
;
3844 a_tty_term_mode(TRU1
);
3845 nn
= a_tty_readline(&tl
, n SMALLOC_DEBUG_ARGSCALL
);
3846 a_tty_term_mode(FAL0
);
3848 a_tty
.tg_line
= NULL
;
3851 n_colour_env_gut(stdout
);
3854 if(tl
.tl_reenter_after_cmd
!= NULL
){
3855 n_source_command(lif
, tl
.tl_reenter_after_cmd
);
3856 /* TODO because of recursion we cannot use srelax()ation: would be good */
3857 /* See above for why not simply using goto */
3858 n
= (nn
<= 0) ? 0 : nn
;
3859 # ifdef HAVE_KEY_BINDINGS
3860 nn
= (n_lex_input
)(lif
, orig_prompt
, linebuf
, linesize
,
3861 (n
== 0 ? "" : savestrbuf(*linebuf
, n
)) SMALLOC_DEBUG_ARGSCALL
);
3871 n_tty_addhist(char const *s
, bool_t isgabby
){
3872 # ifdef HAVE_HISTORY
3873 /* Super-Heavy-Metal: block all sigs, avoid leaks+ on jump */
3875 struct a_tty_hist
*thp
, *othp
, *ythp
;
3881 # ifdef HAVE_HISTORY
3882 a_TTY_CHECK_ADDHIST(s
, isgabby
, goto j_leave
);
3883 if(a_tty
.tg_hist_size_max
== 0)
3886 l
= (ui32_t
)strlen(s
);
3888 /* Eliminating duplicates is expensive, but simply inacceptable so
3889 * during the load of a potentially large history file! */
3890 if(pstate
& PS_LINE_EDITOR_INIT
)
3891 for(thp
= a_tty
.tg_hist
; thp
!= NULL
; thp
= thp
->th_older
)
3892 if(thp
->th_len
== l
&& !strcmp(thp
->th_dat
, s
)){
3893 hold_all_sigs(); /* TODO */
3895 thp
->th_isgabby
= !!isgabby
;
3896 othp
= thp
->th_older
;
3897 ythp
= thp
->th_younger
;
3899 othp
->th_younger
= ythp
;
3901 a_tty
.tg_hist_tail
= ythp
;
3903 ythp
->th_older
= othp
;
3905 a_tty
.tg_hist
= othp
;
3910 ++a_tty
.tg_hist_size
;
3911 if((pstate
& PS_LINE_EDITOR_INIT
) &&
3912 a_tty
.tg_hist_size
> a_tty
.tg_hist_size_max
){
3913 --a_tty
.tg_hist_size
;
3914 if((thp
= a_tty
.tg_hist_tail
) != NULL
){
3915 if((a_tty
.tg_hist_tail
= thp
->th_younger
) == NULL
)
3916 a_tty
.tg_hist
= NULL
;
3918 a_tty
.tg_hist_tail
->th_older
= NULL
;
3923 thp
= smalloc((sizeof(struct a_tty_hist
) -
3924 VFIELD_SIZEOF(struct a_tty_hist
, th_dat
)) + l
+1);
3925 thp
->th_isgabby
= !!isgabby
;
3927 memcpy(thp
->th_dat
, s
, l
+1);
3929 if((thp
->th_older
= a_tty
.tg_hist
) != NULL
)
3930 a_tty
.tg_hist
->th_younger
= thp
;
3932 a_tty
.tg_hist_tail
= thp
;
3933 thp
->th_younger
= NULL
;
3934 a_tty
.tg_hist
= thp
;
3942 # ifdef HAVE_HISTORY
3950 struct a_tty_hist
*thp
;
3952 if(a_tty
.tg_hist
== NULL
)
3955 if((fp
= Ftmp(NULL
, "hist", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
3956 n_perr(_("tmpfile"), 0);
3961 i
= a_tty
.tg_hist_size
;
3963 for(thp
= a_tty
.tg_hist
; thp
!= NULL
;
3964 --i
, b
+= thp
->th_len
, thp
= thp
->th_older
)
3966 "%c%4" PRIuZ
". %-50.50s (%4" PRIuZ
"+%2" PRIu32
" B)\n",
3967 (thp
->th_isgabby
? '*' : ' '), i
, thp
->th_dat
, b
, thp
->th_len
);
3969 page_or_print(fp
, i
);
3975 struct a_tty_hist
*thp
;
3977 while((thp
= a_tty
.tg_hist
) != NULL
){
3978 a_tty
.tg_hist
= thp
->th_older
;
3981 a_tty
.tg_hist_tail
= NULL
;
3982 a_tty
.tg_hist_size
= 0;
3987 struct a_tty_hist
*thp
;
3989 if(UICMP(z
, entry
, <=, a_tty
.tg_hist_size
)){
3990 entry
= (long)a_tty
.tg_hist_size
- entry
;
3991 for(thp
= a_tty
.tg_hist
;; thp
= thp
->th_older
)
3994 else if(entry
-- != 0)
3997 v
= temporary_arg_v_store
= thp
->th_dat
;
4005 # endif /* HAVE_HISTORY */
4007 # ifdef HAVE_KEY_BINDINGS
4010 n_CMD_ARG_DESC_SUBCLASS_DEF(bind
, 3, a_tty_bind_cad
) { /* TODO cmd_tab.h */
4011 {n_CMD_ARG_DESC_STRING
, 0},
4012 {n_CMD_ARG_DESC_WYSH
| n_CMD_ARG_DESC_OPTION
|
4013 n_CMD_ARG_DESC_HONOUR_STOP
,
4014 n_SHEXP_PARSE_DRYRUN
| n_SHEXP_PARSE_LOG
},
4015 {n_CMD_ARG_DESC_WYSH
| n_CMD_ARG_DESC_OPTION
| n_CMD_ARG_DESC_GREEDY
|
4016 n_CMD_ARG_DESC_HONOUR_STOP
,
4017 n_SHEXP_PARSE_IGNORE_EMPTY
}
4018 } n_CMD_ARG_DESC_SUBCLASS_DEF_END
;
4019 struct n_cmd_arg_ctx cac
;
4020 struct a_tty_bind_ctx
*tbcp
;
4021 enum n_lexinput_flags lif
;
4023 union {char const *cp
; char *p
; char c
;} c
;
4026 cac
.cac_desc
= n_CMD_ARG_DESC_SUBCLASS_CAST(&a_tty_bind_cad
);
4028 cac
.cac_inlen
= UIZ_MAX
;
4029 if(!n_cmd_arg_parse(&cac
)){
4034 c
.cp
= cac
.cac_arg
->ca_arg
.ca_str
.s
;
4038 show
= !asccasecmp(cac
.cac_arg
->ca_next
->ca_arg
.ca_str
.s
, "show");
4041 if((lif
= a_tty_bind_ctx_find(c
.cp
)) == (enum n_lexinput_flags
)-1){
4042 if(!(aster
= n_is_all_or_aster(c
.cp
)) || !show
){
4043 n_err(_("`bind': invalid context: %s\n"), c
.cp
);
4054 if((fp
= Ftmp(NULL
, "bind", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
4055 n_perr(_("tmpfile"), 0);
4062 for(tbcp
= a_tty
.tg_bind
[lif
]; tbcp
!= NULL
;
4063 ++lns
, tbcp
= tbcp
->tbc_next
){
4064 /* Print the bytes of resolved terminal capabilities, then */
4065 if((options
& OPT_D_V
) &&
4066 (tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)
4067 ) == a_TTY_BIND_RESOLVE
){
4069 union {wchar_t const *wp
; char const *cp
;} u
;
4072 char const *cnvdat
, *bsep
, *cbufp
;
4077 cbuf
[0] = '=', cbuf
[2] = '\0';
4078 for(cnvdat
= tbcp
->tbc_cnv
, cnvlen
= tbcp
->tbc_cnv_len
;
4080 if(cnvdat
!= tbcp
->tbc_cnv
)
4083 /* {si32_t buf_len_iscap;} */
4084 entlen
= *UNALIGN(si32_t
const*,cnvdat
);
4085 if(entlen
& SI32_MIN
){
4086 /* struct{si32_t buf_len_iscap; si32_t cap_len;
4087 * char buf[]+NUL;} */
4089 u
.cp
= (char const*)
4090 &UNALIGN(si32_t
const*,cnvdat
)[2];
4091 (c
.c
= *u
.cp
) != '\0'; ++u
.cp
){
4092 if(asciichar(c
.c
) && !cntrlchar(c
.c
))
4093 cbuf
[1] = c
.c
, cbufp
= cbuf
;
4096 fprintf(fp
, "%s%02X%s",
4097 bsep
, (ui32_t
)(ui8_t
)c
.c
, cbufp
);
4112 fprintf(fp
, "%sbind %s %s %s%s%s\n",
4113 ((tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
)
4114 /* I18N: `bind' sequence not working, either because it is
4115 * I18N: using Unicode and that is not available in the locale,
4116 * I18N: or a termcap(5)/terminfo(5) sequence won't work out */
4117 ? _("# <Defunctional> ") : ""),
4118 a_tty_bind_ctx_maps
[lif
].tbcm_name
, tbcp
->tbc_seq
,
4119 n_shexp_quote_cp(tbcp
->tbc_exp
, TRU1
),
4120 (tbcp
->tbc_flags
& a_TTY_BIND_NOCOMMIT
? "@" : ""),
4121 (!(options
& OPT_D_VV
) ? ""
4122 : (tbcp
->tbc_flags
& a_TTY_BIND_FUN_INTERNAL
4123 ? _(" # MLE internal") : ""))
4126 if(!aster
|| ++lif
>= n__LEXINPUT_CTX_MAX
)
4129 page_or_print(fp
, lns
);
4133 struct a_tty_bind_parse_ctx tbpc
;
4134 struct n_string store
;
4136 memset(&tbpc
, 0, sizeof tbpc
);
4137 tbpc
.tbpc_cmd
= a_tty_bind_cad
.cad_name
;
4138 tbpc
.tbpc_in_seq
= cac
.cac_arg
->ca_next
->ca_arg
.ca_str
.s
;
4139 tbpc
.tbpc_exp
.s
= n_string_cp(n_cmd_arg_join_greedy(&cac
,
4140 n_string_creat_auto(&store
)));
4141 tbpc
.tbpc_exp
.l
= store
.s_len
;
4142 tbpc
.tbpc_flags
= lif
;
4143 if(!a_tty_bind_create(&tbpc
, TRU1
))
4145 n_string_gut(&store
);
4149 return (v
!= NULL
) ? EXIT_OK
: EXIT_ERR
;
4154 n_CMD_ARG_DESC_SUBCLASS_DEF(unbind
, 2, a_tty_unbind_cad
) {/* TODO cmd_tab.h*/
4155 {n_CMD_ARG_DESC_STRING
, 0},
4156 {n_CMD_ARG_DESC_WYSH
| n_CMD_ARG_DESC_HONOUR_STOP
,
4157 n_SHEXP_PARSE_DRYRUN
| n_SHEXP_PARSE_LOG
}
4158 } n_CMD_ARG_DESC_SUBCLASS_DEF_END
;
4159 struct a_tty_bind_parse_ctx tbpc
;
4160 struct n_cmd_arg_ctx cac
;
4161 struct a_tty_bind_ctx
*tbcp
;
4162 enum n_lexinput_flags lif
;
4164 union {char const *cp
; char *p
;} c
;
4167 cac
.cac_desc
= n_CMD_ARG_DESC_SUBCLASS_CAST(&a_tty_unbind_cad
);
4169 cac
.cac_inlen
= UIZ_MAX
;
4170 if(!n_cmd_arg_parse(&cac
)){
4175 c
.cp
= cac
.cac_arg
->ca_arg
.ca_str
.s
;
4178 if((lif
= a_tty_bind_ctx_find(c
.cp
)) == (enum n_lexinput_flags
)-1){
4179 if(!(aster
= n_is_all_or_aster(c
.cp
))){
4180 n_err(_("`unbind': invalid context: %s\n"), c
.cp
);
4187 c
.cp
= cac
.cac_arg
->ca_next
->ca_arg
.ca_str
.s
;
4189 if(n_is_all_or_aster(c
.cp
)){
4190 while((tbcp
= a_tty
.tg_bind
[lif
]) != NULL
){
4191 memset(&tbpc
, 0, sizeof tbpc
);
4192 tbpc
.tbpc_tbcp
= tbcp
;
4193 tbpc
.tbpc_flags
= lif
;
4194 a_tty_bind_del(&tbpc
);
4197 memset(&tbpc
, 0, sizeof tbpc
);
4198 tbpc
.tbpc_cmd
= a_tty_unbind_cad
.cad_name
;
4199 tbpc
.tbpc_in_seq
= c
.cp
;
4200 tbpc
.tbpc_flags
= lif
;
4202 if(UNLIKELY(!a_tty_bind_parse(FAL0
, &tbpc
)))
4204 else if(UNLIKELY((tbcp
= tbpc
.tbpc_tbcp
) == NULL
)){
4205 n_err(_("`unbind': no such `bind'ing: %s %s\n"),
4206 a_tty_bind_ctx_maps
[lif
].tbcm_name
, c
.cp
);
4209 a_tty_bind_del(&tbpc
);
4212 if(aster
&& ++lif
< n__LEXINPUT_CTX_MAX
)
4216 return (v
!= NULL
) ? EXIT_OK
: EXIT_ERR
;
4218 # endif /* HAVE_KEY_BINDINGS */
4220 #else /* HAVE_MLE */
4222 * The really-nothing-at-all implementation
4232 n_tty_destroy(void){
4238 n_tty_signal(int sig
){
4239 NYD_X
; /* Signal handler */
4242 # ifdef HAVE_TERMCAP
4245 sigset_t nset
, oset
;
4247 n_TERMCAP_SUSPEND(TRU1
);
4251 sigaddset(&nset
, sig
);
4252 sigprocmask(SIG_UNBLOCK
, &nset
, &oset
);
4254 /* When we come here we'll continue editing, so reestablish */
4255 sigprocmask(SIG_BLOCK
, &oset
, (sigset_t
*)NULL
);
4258 n_TERMCAP_RESUME(TRU1
);
4262 # endif /* HAVE_TERMCAP */
4266 (n_tty_readline
)(char const *prompt
, char **linebuf
, size_t *linesize
, size_t n
4267 SMALLOC_DEBUG_ARGS
){
4273 fputs(prompt
, stdout
);
4276 # ifdef HAVE_TERMCAP
4279 rv
= (readline_restart
)(stdin
, linebuf
, linesize
,n SMALLOC_DEBUG_ARGSCALL
);
4280 # ifdef HAVE_TERMCAP
4288 n_tty_addhist(char const *s
, bool_t isgabby
){
4294 #endif /* nothing at all */
4296 #undef a_TTY_SIGNALS