1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
2 *@ TTY (command line) editing interaction.
3 *@ Because we have (had) multiple line-editor implementations, including our
4 *@ own 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 - 2018 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
33 static sighandler_type a_tty_oint
, a_tty_oquit
, a_tty_oterm
,
35 a_tty_otstp
, a_tty_ottin
, a_tty_ottou
;
39 static void a_tty_sigs_up(void), a_tty_sigs_down(void);
42 /* Prototype here, implementation is specific to chosen editor */
43 static void a_tty_signal(int sig
);
53 sigprocmask(SIG_BLOCK
, &nset
, &oset
);
54 a_tty_oint
= safe_signal(SIGINT
, &a_tty_signal
);
55 a_tty_oquit
= safe_signal(SIGQUIT
, &a_tty_signal
);
56 a_tty_oterm
= safe_signal(SIGTERM
, &a_tty_signal
);
57 a_tty_ohup
= safe_signal(SIGHUP
, &a_tty_signal
);
58 a_tty_otstp
= safe_signal(SIGTSTP
, &a_tty_signal
);
59 a_tty_ottin
= safe_signal(SIGTTIN
, &a_tty_signal
);
60 a_tty_ottou
= safe_signal(SIGTTOU
, &a_tty_signal
);
61 sigprocmask(SIG_SETMASK
, &oset
, NULL
);
66 a_tty_sigs_down(void){
72 sigprocmask(SIG_BLOCK
, &nset
, &oset
);
73 safe_signal(SIGINT
, a_tty_oint
);
74 safe_signal(SIGQUIT
, a_tty_oquit
);
75 safe_signal(SIGTERM
, a_tty_oterm
);
76 safe_signal(SIGHUP
, a_tty_ohup
);
77 safe_signal(SIGTSTP
, a_tty_otstp
);
78 safe_signal(SIGTTIN
, a_tty_ottin
);
79 safe_signal(SIGTTOU
, a_tty_ottou
);
80 sigprocmask(SIG_SETMASK
, &oset
, NULL
);
83 #endif /* a_TTY_SIGNALS */
85 static sigjmp_buf a_tty__actjmp
; /* TODO someday, we won't need it no more */
87 a_tty__acthdl(int s
) /* TODO someday, we won't need it no more */
89 NYD_X
; /* Signal handler */
90 siglongjmp(a_tty__actjmp
, s
);
94 getapproval(char const * volatile prompt
, bool_t noninteract_default
)
96 sighandler_type
volatile oint
, ohup
;
101 if(!(n_psonce
& n_PSO_INTERACTIVE
) || (n_pstate
& n_PS_ROBOT
)){
103 rv
= noninteract_default
;
109 char const *quest
= noninteract_default
110 ? _("[yes]/no? ") : _("[no]/yes? ");
113 prompt
= _("Continue");
114 prompt
= savecatsep(prompt
, ' ', quest
);
117 oint
= safe_signal(SIGINT
, SIG_IGN
);
118 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
119 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
121 safe_signal(SIGINT
, &a_tty__acthdl
);
122 safe_signal(SIGHUP
, &a_tty__acthdl
);
124 while(n_go_input(n_GO_INPUT_CTX_DEFAULT
| n_GO_INPUT_NL_ESC
, prompt
,
125 &termios_state
.ts_linebuf
, &termios_state
.ts_linesize
, NULL
,NULL
129 x
= n_boolify(termios_state
.ts_linebuf
, UIZ_MAX
, noninteract_default
);
136 safe_signal(SIGHUP
, ohup
);
137 safe_signal(SIGINT
, oint
);
147 getuser(char const * volatile query
) /* TODO v15-compat obsolete */
149 sighandler_type
volatile oint
, ohup
;
150 char * volatile user
= NULL
;
157 oint
= safe_signal(SIGINT
, SIG_IGN
);
158 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
159 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
161 safe_signal(SIGINT
, &a_tty__acthdl
);
162 safe_signal(SIGHUP
, &a_tty__acthdl
);
164 if (n_go_input(n_GO_INPUT_CTX_DEFAULT
| n_GO_INPUT_NL_ESC
, query
,
165 &termios_state
.ts_linebuf
, &termios_state
.ts_linesize
, NULL
,NULL
) >= 0)
166 user
= termios_state
.ts_linebuf
;
169 safe_signal(SIGHUP
, ohup
);
170 safe_signal(SIGINT
, oint
);
179 getpassword(char const *query
)/* TODO v15: use _only_ n_tty_fp! */
181 sighandler_type
volatile oint
, ohup
;
183 char * volatile pass
;
188 if(!(n_psonce
& n_PSO_TTYIN
))
192 query
= _("Password: ");
193 fputs(query
, n_tty_fp
);
196 /* FIXME everywhere: tcsetattr() generates SIGTTOU when we're not in
197 * FIXME foreground pgrp, and can fail with EINTR!! also affects
198 * FIXME termios_state_reset() */
199 tcgetattr(STDIN_FILENO
, &termios_state
.ts_tios
);
200 memcpy(&tios
, &termios_state
.ts_tios
, sizeof tios
);
201 termios_state
.ts_needs_reset
= TRU1
;
202 tios
.c_iflag
&= ~(ISTRIP
);
203 tios
.c_lflag
&= ~(ECHO
| ECHOE
| ECHOK
| ECHONL
);
205 oint
= safe_signal(SIGINT
, SIG_IGN
);
206 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
207 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
209 safe_signal(SIGINT
, &a_tty__acthdl
);
210 safe_signal(SIGHUP
, &a_tty__acthdl
);
212 tcsetattr(STDIN_FILENO
, TCSAFLUSH
, &tios
);
213 if (readline_restart(n_stdin
, &termios_state
.ts_linebuf
,
214 &termios_state
.ts_linesize
, 0) >= 0)
215 pass
= termios_state
.ts_linebuf
;
217 termios_state_reset();
218 putc('\n', n_tty_fp
);
220 safe_signal(SIGHUP
, ohup
);
221 safe_signal(SIGINT
, oint
);
228 #endif /* HAVE_SOCKETS */
231 n_tty_create_prompt(struct n_string
*store
, char const *xprompt
,
232 enum n_go_input_flags gif
){
233 struct n_visual_info_ctx vic
;
239 /* Prompt creation indicates that prompt printing is directly ahead, so take
240 * this opportunity of UI-in-a-known-state and advertise the error ring */
242 if((n_psonce
& (n_PSO_INTERACTIVE
| n_PSO_ERRORS_NOTED
)
243 ) == n_PSO_INTERACTIVE
&& (n_pstate
& n_PS_ERRORS_PROMPT
)){
244 n_psonce
|= n_PSO_ERRORS_NOTED
;
245 fprintf(n_stdout
, _("There are new messages in the error message ring "
247 " The `errors' command manages this message ring\n"),
253 n_string_trunc(store
, 0);
255 if(gif
& n_GO_INPUT_PROMPT_NONE
){
260 if(n_pstate
& n_PS_ERRORS_PROMPT
){
261 n_pstate
&= ~n_PS_ERRORS_PROMPT
;
262 store
= n_string_push_cp(store
, V_(n_error
));
263 store
= n_string_push_c(store
, '#');
264 store
= n_string_push_c(store
, ' ');
268 cp
= (gif
& n_GO_INPUT_PROMPT_EVAL
)
269 ? (gif
& n_GO_INPUT_NL_FOLLOW
? ok_vlook(prompt2
) : ok_vlook(prompt
))
271 if(cp
!= NULL
&& *cp
!= '\0'){
272 enum n_shexp_state shs
;
274 store
= n_string_push_cp(store
, cp
);
275 in
.s
= n_string_cp(store
);
278 store
= n_string_drop_ownership(store
);
280 shs
= n_shexp_parse_token((n_SHEXP_PARSE_LOG
|
281 n_SHEXP_PARSE_IGNORE_EMPTY
| n_SHEXP_PARSE_QUOTE_AUTO_FIXED
|
282 n_SHEXP_PARSE_QUOTE_AUTO_DSQ
), store
, &in
, NULL
);
283 if((shs
& n_SHEXP_STATE_ERR_MASK
) || !(shs
& n_SHEXP_STATE_STOP
)){
284 store
= n_string_clear(store
);
285 store
= n_string_take_ownership(store
, out
.s
, out
.l
+1, out
.l
);
287 n_err(_("*prompt2?* evaluation failed, actively unsetting it\n"));
288 if(gif
& n_GO_INPUT_NL_FOLLOW
)
299 /* Make all printable TODO not know, we want to pass through ESC/CSI! */
301 in
.s
= n_string_cp(store
);
303 makeprint(&in
, &out
);
304 store
= n_string_assign_buf(store
, out
.s
, out
.l
);
308 /* We need the visual width.. */
309 memset(&vic
, 0, sizeof vic
);
310 vic
.vic_indat
= n_string_cp(store
);
311 vic
.vic_inlen
= store
->s_len
;
312 for(pwidth
= 0; vic
.vic_inlen
> 0;){
313 /* but \[ .. \] is not taken into account */
314 if(vic
.vic_indat
[0] == '\\' && vic
.vic_inlen
> 1 &&
315 vic
.vic_indat
[1] == '['){
318 i
= PTR2SIZE(vic
.vic_indat
- store
->s_dat
);
319 store
= n_string_cut(store
, i
, 2);
320 cp
= &n_string_cp(store
)[i
];
321 i
= store
->s_len
- i
;
324 n_err(_("Open \\[ sequence not closed in *prompt2?*\n"));
327 if(cp
[0] == '\\' && cp
[1] == ']')
330 i
= PTR2SIZE(cp
- store
->s_dat
);
331 store
= n_string_cut(store
, i
, 2);
332 vic
.vic_indat
= &n_string_cp(store
)[i
];
333 vic
.vic_inlen
= store
->s_len
- i
;
334 }else if(!n_visual_info(&vic
, n_VISUAL_INFO_WIDTH_QUERY
|
335 n_VISUAL_INFO_ONE_CHAR
)){
336 n_err(_("Character set error in evaluation of *prompt2?*\n"));
339 pwidth
+= (ui32_t
)vic
.vic_vi_width
;
340 vic
.vic_indat
= vic
.vic_oudat
;
341 vic
.vic_inlen
= vic
.vic_oulen
;
345 /* And there may be colour support, too */
347 if(n_COLOUR_IS_ACTIVE()){
348 struct str
const *psp
, *rsp
;
349 struct n_colour_pen
*ccp
;
351 if((ccp
= n_colour_pen_create(n_COLOUR_ID_MLE_PROMPT
, NULL
)) != NULL
&&
352 (psp
= n_colour_pen_to_str(ccp
)) != NULL
&&
353 (rsp
= n_colour_reset_to_str()) != NULL
){
354 store
= n_string_unshift_buf(store
, psp
->s
, psp
->l
);
355 /*store =*/ n_string_push_buf(store
, rsp
->s
, rsp
->l
);
358 #endif /* HAVE_COLOUR */
366 * MLE: the Mailx-Line-Editor, our homebrew editor
367 * (inspired from NetBSDs sh(1) and dash(1)s hetio.c).
369 * Only used in interactive mode.
370 * TODO . This code should be splitted in funs/raw input/bind modules.
371 * TODO . We work with wide characters, but not for buffer takeovers and
372 * TODO cell2save()ings. This should be changed. For the former the buffer
373 * TODO thus needs to be converted to wide first, and then simply be fed in.
374 * TODO . We repaint too much. To overcome this use the same approach that my
375 * TODO terminal library uses, add a true "virtual screen line" that stores
376 * TODO the actually visible content, keep a notion of "first modified slot"
377 * TODO and "last modified slot" (including "unknown" and "any" specials),
378 * TODO update that virtual instead, then synchronize what has truly changed.
379 * TODO I.e., add an indirection layer.
380 * TODO . No BIDI support.
381 * TODO . `bind': we currently use only one lookup tree.
382 * TODO For absolute graceful behaviour (in conjunction with HAVE_TERMCAP) we
383 * TODO need a lower level tree, which possibly combines bytes into "symbolic
384 * TODO wchar_t values", into "keys" that is, as applicable, and an upper
385 * TODO layer which only works on "keys" in order to possibly combine them
386 * TODO into key sequences. We can reuse existent tree code for that.
387 * TODO We need an additional hashmap which maps termcap/terminfo names to
388 * TODO (their byte representations and) a dynamically assigned unique
389 * TODO "symbolic wchar_t value". This implies we may have incompatibilities
390 * TODO when __STDC_ISO_10646__ is not defined. Also we do need takeover-
391 * TODO bytes storage, but it can be a string_creat_auto in the line struct.
392 * TODO Until then we can run into ambiguities; in rare occasions.
395 /* To avoid memory leaks etc. with the current codebase that simply longjmp(3)s
396 * we're forced to use the very same buffer--the one that is passed through to
397 * us from the outside--to store anything we need, i.e., a "struct cell[]", and
398 * convert that on-the-fly back to the plain char* result once we're done.
399 * To simplify our live, use savestr() buffers for all other needed memory */
401 # ifdef HAVE_KEY_BINDINGS
402 /* Default *bind-timeout* key-sequence continuation timeout, in tenths of
403 * a second. Must fit in 8-bit! Update the manual upon change! */
404 # define a_TTY_BIND_TIMEOUT 2
405 # define a_TTY_BIND_TIMEOUT_MAX SI8_MAX
407 n_CTAV(a_TTY_BIND_TIMEOUT_MAX
<= UI8_MAX
);
409 /* We have a chicken-and-egg problem with `bind' and our termcap layer,
410 * because we may not initialize the latter automatically to allow users to
411 * specify *termcap-disable* and let it mean exactly that.
412 * On the other hand users can be expected to use `bind' in resources.
413 * Therefore bindings which involve termcap/terminfo sequences, and which
414 * are defined before n_PSO_STARTED signals usability of termcap/terminfo,
415 * will be (partially) delayed until tty_init() is called.
416 * And we preallocate space for the expansion of the resolved capability */
417 # define a_TTY_BIND_CAPNAME_MAX 15
418 # define a_TTY_BIND_CAPEXP_ROUNDUP 16
420 n_CTAV(n_ISPOW2(a_TTY_BIND_CAPEXP_ROUNDUP
));
421 n_CTA(a_TTY_BIND_CAPEXP_ROUNDUP
<= SI8_MAX
/ 2, "Variable must fit in 6-bit");
422 n_CTA(a_TTY_BIND_CAPEXP_ROUNDUP
>= 8, "Variable too small");
423 # endif /* HAVE_KEY_BINDINGS */
426 /* The first line of the history file is used as a marker after >v14.9.6 */
427 # define a_TTY_HIST_MARKER "@s-mailx history v2"
430 /* The maximum size (of a_tty_cell's) in a line */
431 # define a_TTY_LINE_MAX SI32_MAX
433 /* (Some more CTAs around) */
434 n_CTA(a_TTY_LINE_MAX
<= SI32_MAX
,
435 "a_TTY_LINE_MAX larger than SI32_MAX, but the MLE uses 32-bit arithmetic");
437 /* When shall the visual screen be scrolled, in % of usable screen width */
438 # define a_TTY_SCROLL_MARGIN_LEFT 15
439 # define a_TTY_SCROLL_MARGIN_RIGHT 10
441 /* fexpand() flags for expand-on-tab */
442 # define a_TTY_TAB_FEXP_FL \
443 (FEXP_NOPROTO | FEXP_FULL | FEXP_SILENT | FEXP_MULTIOK)
445 /* Columns to ripoff: outermost may not be touched, plus position indicator.
446 * Must thus be at least 1, but should be >= 1+4 to dig the position indicator
447 * that we place (if there is sufficient space) */
448 # define a_TTY_WIDTH_RIPOFF 5
450 /* The implementation of the MLE functions always exists, and is based upon
451 * the a_TTY_BIND_FUN_* constants, so most of this enum is always necessary */
452 enum a_tty_bind_flags
{
453 # ifdef HAVE_KEY_BINDINGS
454 a_TTY_BIND_RESOLVE
= 1u<<8, /* Term cap. yet needs to be resolved */
455 a_TTY_BIND_DEFUNCT
= 1u<<9, /* Unicode/term cap. used but not avail. */
456 a_TTY__BIND_MASK
= a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
,
457 /* MLE fun assigned to a one-byte-sequence: this may be used for special
458 * key-sequence bypass processing */
459 a_TTY_BIND_MLE1CNTRL
= 1u<<10,
460 a_TTY_BIND_NOCOMMIT
= 1u<<11, /* Expansion shall be editable */
463 /* MLE internal commands XXX Can these be values not bits? */
464 a_TTY_BIND_FUN_INTERNAL
= 1u<<15,
465 a_TTY__BIND_FUN_SHIFT
= 16u,
466 a_TTY__BIND_FUN_SHIFTMAX
= 24u,
467 a_TTY__BIND_FUN_MASK
= ((1u << a_TTY__BIND_FUN_SHIFTMAX
) - 1) &
468 ~((1u << a_TTY__BIND_FUN_SHIFT
) - 1),
469 # define a_TTY_BIND_FUN_REDUCE(X) \
470 (((ui32_t)(X) & a_TTY__BIND_FUN_MASK) >> a_TTY__BIND_FUN_SHIFT)
471 # define a_TTY_BIND_FUN_EXPAND(X) \
472 (((ui32_t)(X) & (a_TTY__BIND_FUN_MASK >> a_TTY__BIND_FUN_SHIFT)) << \
473 a_TTY__BIND_FUN_SHIFT)
476 a_TTY_BIND_FUN_ ## N = a_TTY_BIND_FUN_EXPAND(I),
479 a_X(GO_BWD
, 1) a_X(GO_FWD
, 2)
480 a_X(GO_WORD_BWD
, 3) a_X(GO_WORD_FWD
, 4)
481 a_X(GO_SCREEN_BWD
, 5) a_X(GO_SCREEN_FWD
, 6)
482 a_X(GO_HOME
, 7) a_X(GO_END
, 8)
483 a_X(DEL_BWD
, 9) a_X(DEL_FWD
, 10)
484 a_X(SNARF_WORD_BWD
, 11) a_X(SNARF_WORD_FWD
, 12)
485 a_X(SNARF_END
, 13) a_X(SNARF_LINE
, 14)
486 a_X(HIST_BWD
, 15) a_X(HIST_FWD
, 16)
487 a_X(HIST_SRCH_BWD
, 17) a_X(HIST_SRCH_FWD
, 18)
489 a_X(QUOTE_RNDTRIP
, 20)
493 a_X(CLEAR_SCREEN
, 24)
498 a_X(COMMIT
, 28) /* Must be last one! */
501 a_TTY__BIND_LAST
= 1<<28
503 # ifdef HAVE_KEY_BINDINGS
504 n_CTA((ui32_t
)a_TTY_BIND_RESOLVE
>= (ui32_t
)n__GO_INPUT_CTX_MAX1
,
505 "Bit carrier lower boundary must be raised to avoid value sharing");
507 n_CTA(a_TTY_BIND_FUN_EXPAND(a_TTY_BIND_FUN_COMMIT
) <
508 (1 << a_TTY__BIND_FUN_SHIFTMAX
),
509 "Bit carrier range must be expanded to represent necessary bits");
510 n_CTA(a_TTY__BIND_LAST
>= (1u << a_TTY__BIND_FUN_SHIFTMAX
),
511 "Bit carrier upper boundary must be raised to avoid value sharing");
512 n_CTA(UICMP(64, a_TTY__BIND_LAST
, <=, SI32_MAX
),
513 "Flag bits excess storage datatype" /* And we need one bit free */);
515 enum a_tty_fun_status
{
516 a_TTY_FUN_STATUS_OK
, /* Worked, next character */
517 a_TTY_FUN_STATUS_COMMIT
, /* Line done */
518 a_TTY_FUN_STATUS_RESTART
, /* Complete restart, reset multibyte etc. */
519 a_TTY_FUN_STATUS_END
/* End, return EOF */
523 enum a_tty_hist_flags
{
524 a_TTY_HIST_CTX_DEFAULT
= n_GO_INPUT_CTX_DEFAULT
,
525 a_TTY_HIST_CTX_COMPOSE
= n_GO_INPUT_CTX_COMPOSE
,
526 a_TTY_HIST_CTX_MASK
= n__GO_INPUT_CTX_MASK
,
527 /* Cannot use enum n_go_input_flags for the rest, need to stay in 8-bit */
528 a_TTY_HIST_GABBY
= 1u<<7,
529 a_TTY_HIST__MAX
= a_TTY_HIST_GABBY
531 n_CTA(a_TTY_HIST_CTX_MASK
< a_TTY_HIST_GABBY
, "Enumeration value overlap");
534 enum a_tty_visual_flags
{
536 a_TTY_VF_MOD_CURSOR
= 1u<<0, /* Cursor moved */
537 a_TTY_VF_MOD_CONTENT
= 1u<<1, /* Content modified */
538 a_TTY_VF_MOD_DIRTY
= 1u<<2, /* Needs complete repaint */
539 a_TTY_VF_MOD_SINGLE
= 1u<<3, /* TODO Drop when indirection as above comes */
540 a_TTY_VF_REFRESH
= a_TTY_VF_MOD_DIRTY
| a_TTY_VF_MOD_CURSOR
|
541 a_TTY_VF_MOD_CONTENT
| a_TTY_VF_MOD_SINGLE
,
542 a_TTY_VF_BELL
= 1u<<8, /* Ring the bell */
543 a_TTY_VF_SYNC
= 1u<<9, /* Flush/Sync I/O channel */
545 a_TTY_VF_ALL_MASK
= a_TTY_VF_REFRESH
| a_TTY_VF_BELL
| a_TTY_VF_SYNC
,
546 a_TTY__VF_LAST
= a_TTY_VF_SYNC
549 # ifdef HAVE_KEY_BINDINGS
550 struct a_tty_bind_ctx
{
551 struct a_tty_bind_ctx
*tbc_next
;
552 char *tbc_seq
; /* quence as given (poss. re-quoted), in .tb__buf */
553 char *tbc_exp
; /* ansion, in .tb__buf */
554 /* The .tbc_seq'uence with any terminal capabilities resolved; in fact an
555 * array of structures, the first entry of which is {si32_t buf_len_iscap;}
556 * where the signed bit indicates whether the buffer is a resolved terminal
557 * capability instead of a (possibly multibyte) character. In .tbc__buf */
563 char tbc__buf
[n_VFIELD_SIZE(0)];
566 struct a_tty_bind_ctx_map
{
567 enum n_go_input_flags tbcm_ctx
;
568 char const tbcm_name
[12]; /* Name of `bind' context */
570 # endif /* HAVE_KEY_BINDINGS */
572 struct a_tty_bind_builtin_tuple
{
573 bool_t tbbt_iskey
; /* Whether this is a control key; else termcap query */
574 char tbbt_ckey
; /* Control code */
575 ui16_t tbbt_query
; /* enum n_termcap_query (instead) */
576 char tbbt_exp
[12]; /* String or [0]=NUL/[1]=BIND_FUN_REDUCE() */
578 n_CTA(n__TERMCAP_QUERY_MAX1
<= UI16_MAX
,
579 "Enumeration cannot be stored in datatype");
581 # ifdef HAVE_KEY_BINDINGS
582 struct a_tty_bind_parse_ctx
{
583 char const *tbpc_cmd
; /* Command which parses */
584 char const *tbpc_in_seq
; /* In: key sequence */
585 struct str tbpc_exp
; /* In/Out: expansion (or NULL) */
586 struct a_tty_bind_ctx
*tbpc_tbcp
; /* Out: if yet existent */
587 struct a_tty_bind_ctx
*tbpc_ltbcp
; /* Out: the one before .tbpc_tbcp */
588 char *tbpc_seq
; /* Out: normalized sequence */
589 char *tbpc_cnv
; /* Out: sequence when read(2)ing it */
592 ui32_t tbpc_cnv_align_mask
; /* For creating a_tty_bind_ctx.tbc_cnv */
593 ui32_t tbpc_flags
; /* n_go_input_flags | a_tty_bind_flags */
596 /* Input character tree */
597 struct a_tty_bind_tree
{
598 struct a_tty_bind_tree
*tbt_sibling
; /* s at same level */
599 struct a_tty_bind_tree
*tbt_childs
; /* Sequence continues.. here */
600 struct a_tty_bind_tree
*tbt_parent
;
601 struct a_tty_bind_ctx
*tbt_bind
; /* NULL for intermediates */
602 wchar_t tbt_char
; /* acter this level represents */
603 bool_t tbt_isseq
; /* Belongs to multibyte sequence */
604 bool_t tbt_isseq_trail
; /* ..is trailing byte of it */
607 # endif /* HAVE_KEY_BINDINGS */
611 ui16_t tc_count
; /* ..of bytes */
612 ui8_t tc_width
; /* Visual width; TAB==UI8_MAX! */
613 bool_t tc_novis
; /* Don't display visually as such (control character) */
614 char tc_cbuf
[MB_LEN_MAX
* 2]; /* .. plus reset shift sequence */
618 struct a_tty_line
*tg_line
; /* To be able to access it from signal hdl */
620 struct a_tty_hist
*tg_hist
;
621 struct a_tty_hist
*tg_hist_tail
;
623 size_t tg_hist_size_max
;
625 # ifdef HAVE_KEY_BINDINGS
626 ui32_t tg_bind_cnt
; /* Overall number of bindings */
627 bool_t tg_bind_isdirty
;
628 bool_t tg_bind_isbuild
;
629 # define a_TTY_SHCUT_MAX (3 +1) /* Note: update manual on change! */
630 ui8_t tg_bind__dummy
[2];
631 char tg_bind_shcut_cancel
[n__GO_INPUT_CTX_MAX1
][a_TTY_SHCUT_MAX
];
632 char tg_bind_shcut_prompt_char
[n__GO_INPUT_CTX_MAX1
][a_TTY_SHCUT_MAX
];
633 struct a_tty_bind_ctx
*tg_bind
[n__GO_INPUT_CTX_MAX1
];
634 struct a_tty_bind_tree
*tg_bind_tree
[n__GO_INPUT_CTX_MAX1
][HSHSIZE
];
636 struct termios tg_tios_old
;
637 struct termios tg_tios_new
;
639 # ifdef HAVE_KEY_BINDINGS
640 n_CTA(n__GO_INPUT_CTX_MAX1
== 3 && a_TTY_SHCUT_MAX
== 4 &&
641 n_SIZEOF_FIELD(struct a_tty_global
, tg_bind__dummy
) == 2,
642 "Value results in array sizes that results in bad structure layout");
643 n_CTA(a_TTY_SHCUT_MAX
> 1,
644 "Users need at least one shortcut, plus NUL terminator");
649 struct a_tty_hist
*th_older
;
650 struct a_tty_hist
*th_younger
;
652 ui8_t th_flags
; /* enum a_tty_hist_flags */
653 char th_dat
[n_VFIELD_SIZE(3)];
655 n_CTA(UI8_MAX
>= a_TTY_HIST__MAX
, "Value exceeds datatype storage");
659 /* Caller pointers */
661 size_t *tl_x_bufsize
;
662 /* Input processing */
663 # ifdef HAVE_KEY_BINDINGS
664 wchar_t tl_bind_takeover
; /* Leftover byte to consume next */
665 ui8_t tl_bind_timeout
; /* In-seq. inter-byte-timer, in 1/10th secs */
666 ui8_t tl__bind_dummy
[3];
667 char (*tl_bind_shcut_cancel
)[a_TTY_SHCUT_MAX
]; /* Special _CANCEL control */
668 char (*tl_bind_shcut_prompt_char
)[a_TTY_SHCUT_MAX
]; /* ..for _PROMPT_CHAR */
669 struct a_tty_bind_tree
*(*tl_bind_tree_hmap
)[HSHSIZE
]; /* Bind lookup tree */
670 struct a_tty_bind_tree
*tl_bind_tree
;
672 /* Line data / content handling */
673 ui32_t tl_count
; /* ..of a_tty_cell's (<= a_TTY_LINE_MAX) */
674 ui32_t tl_cursor
; /* Current a_tty_cell insertion point */
676 char *cbuf
; /* *.tl_x_buf */
677 struct a_tty_cell
*cells
;
679 struct str tl_defc
; /* Current default content */
680 size_t tl_defc_cursor_byte
; /* Desired position of cursor after takeover */
681 struct str tl_savec
; /* Saved default content */
682 struct str tl_pastebuf
; /* Last snarfed data */
684 struct a_tty_hist
*tl_hist
; /* History cursor */
686 ui32_t tl_count_max
; /* ..before buffer needs to grow */
687 /* Visual data representation handling */
688 ui32_t tl_vi_flags
; /* enum a_tty_visual_flags */
689 ui32_t tl_lst_count
; /* .tl_count after last sync */
690 ui32_t tl_lst_cursor
; /* .tl_cursor after last sync */
691 /* TODO Add another indirection layer by adding a tl_phy_line of
692 * TODO a_tty_cell objects, incorporate changes in visual layer,
693 * TODO then check what _really_ has changed, sync those changes only */
694 struct a_tty_cell
const *tl_phy_start
; /* First visible cell, left border */
695 ui32_t tl_phy_cursor
; /* Physical cursor position */
696 bool_t tl_quote_rndtrip
; /* For _kht() expansion */
697 ui8_t tl__dummy2
[3 + 4];
698 ui32_t tl_goinflags
; /* enum n_go_input_flags */
699 ui32_t tl_prompt_length
; /* Preclassified (TODO needed as a_tty_cell) */
700 ui32_t tl_prompt_width
;
701 char const *tl_prompt
; /* Preformatted prompt (including colours) */
702 /* .tl_pos_buf is a hack */
704 char *tl_pos_buf
; /* mle-position colour-on, [4], reset seq. */
705 char *tl_pos
; /* Address of the [4] */
709 # ifdef HAVE_KEY_BINDINGS
710 /* C99: use [INDEX]={} */
711 n_CTAV(n_GO_INPUT_CTX_BASE
== 0);
712 n_CTAV(n_GO_INPUT_CTX_DEFAULT
== 1);
713 n_CTAV(n_GO_INPUT_CTX_COMPOSE
== 2);
714 static struct a_tty_bind_ctx_map
const
715 a_tty_bind_ctx_maps
[n__GO_INPUT_CTX_MAX1
] = {
716 {n_GO_INPUT_CTX_BASE
, "base"},
717 {n_GO_INPUT_CTX_DEFAULT
, "default"},
718 {n_GO_INPUT_CTX_COMPOSE
, "compose"}
721 /* Special functions which our MLE provides internally.
722 * Update the manual upon change! */
723 static char const a_tty_bind_fun_names
[][24] = {
726 n_FIELD_INITI(a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## I)) "mle-" N "\0",
729 a_X(GO_BWD
, "go-bwd") a_X(GO_FWD
, "go-fwd")
730 a_X(GO_WORD_BWD
, "go-word-bwd") a_X(GO_WORD_FWD
, "go-word-fwd")
731 a_X(GO_SCREEN_BWD
, "go-screen-bwd") a_X(GO_SCREEN_FWD
, "go-screen-fwd")
732 a_X(GO_HOME
, "go-home") a_X(GO_END
, "go-end")
733 a_X(DEL_BWD
, "del-bwd") a_X(DEL_FWD
, "del-fwd")
734 a_X(SNARF_WORD_BWD
, "snarf-word-bwd") a_X(SNARF_WORD_FWD
, "snarf-word-fwd")
735 a_X(SNARF_END
, "snarf-end") a_X(SNARF_LINE
, "snarf-line")
736 a_X(HIST_BWD
, "hist-bwd") a_X(HIST_FWD
, "hist-fwd")
737 a_X(HIST_SRCH_BWD
, "hist-srch-bwd") a_X(HIST_SRCH_FWD
, "hist-srch-fwd")
738 a_X(REPAINT
, "repaint")
739 a_X(QUOTE_RNDTRIP
, "quote-rndtrip")
740 a_X(PROMPT_CHAR
, "prompt-char")
741 a_X(COMPLETE
, "complete")
743 a_X(CLEAR_SCREEN
, "clear-screen")
745 a_X(CANCEL
, "cancel")
747 a_X(FULLRESET
, "fullreset")
748 a_X(COMMIT
, "commit")
752 # endif /* HAVE_KEY_BINDINGS */
754 /* The default key bindings (unless disallowed). Update manual upon change!
755 * A logical subset of this table is also used if !HAVE_KEY_BINDINGS (more
756 * expensive than a switch() on control codes directly, but less redundant).
757 * The table for the "base" context */
758 static struct a_tty_bind_builtin_tuple
const a_tty_bind_base_tuples
[] = {
761 {TRU1, K, 0, {'\0', (char)a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## S),}},
779 a_X('Q', QUOTE_RNDTRIP
)
780 a_X('R', HIST_SRCH_BWD
)
781 a_X('S', HIST_SRCH_FWD
)
784 a_X('V', PROMPT_CHAR
)
785 a_X('W', SNARF_WORD_BWD
)
786 a_X('X', GO_WORD_FWD
)
787 a_X('Y', GO_WORD_BWD
)
794 a_X('_', SNARF_WORD_FWD
)
799 # define a_X(K,S) {TRU1, K, 0, {S}},
801 /* The remains only if we have `bind' functionality available */
802 # ifdef HAVE_KEY_BINDINGS
805 {FAL0, '\0', n_TERMCAP_QUERY_ ## Q,\
806 {'\0', (char)a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## S),}},
808 a_X(key_backspace
, DEL_BWD
) a_X(key_dc
, DEL_FWD
)
809 a_X(key_eol
, SNARF_END
)
810 a_X(key_home
, GO_HOME
) a_X(key_end
, GO_END
)
811 a_X(key_left
, GO_BWD
) a_X(key_right
, GO_FWD
)
812 a_X(xkey_aleft
, GO_WORD_BWD
) a_X(xkey_aright
, GO_WORD_FWD
)
813 a_X(xkey_cleft
, GO_SCREEN_BWD
) a_X(xkey_cright
, GO_SCREEN_FWD
)
814 a_X(key_sleft
, GO_HOME
) a_X(key_sright
, GO_END
)
815 a_X(key_up
, HIST_BWD
) a_X(key_down
, HIST_FWD
)
816 # endif /* HAVE_KEY_BINDINGS */
819 /* The table for the "default" context */
820 static struct a_tty_bind_builtin_tuple
const a_tty_bind_default_tuples
[] = {
823 {TRU1, K, 0, {'\0', (char)a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## S),}},
826 # define a_X(K,S) {TRU1, K, 0, {S}},
834 /* The remains only if we have `bind' functionality available */
835 # ifdef HAVE_KEY_BINDINGS
837 # define a_X(Q,S) {FAL0, '\0', n_TERMCAP_QUERY_ ## Q, {S}},
839 a_X(key_shome
, "z0") a_X(key_send
, "z$")
840 a_X(xkey_sup
, "z0") a_X(xkey_sdown
, "z$")
841 a_X(key_ppage
, "z-") a_X(key_npage
, "z+")
842 a_X(xkey_cup
, "dotmove-") a_X(xkey_cdown
, "dotmove+")
843 # endif /* HAVE_KEY_BINDINGS */
847 static struct a_tty_global a_tty
;
849 /* Change from canonical to raw, non-canonical mode, and way back */
850 static void a_tty_term_mode(bool_t raw
);
853 /* Load and save the history file, respectively */
854 static bool_t
a_tty_hist_load(void);
855 static bool_t
a_tty_hist_save(void);
857 /* Initialize .tg_hist_size_max and return desired history file, or NULL */
858 static char const *a_tty_hist__query_config(void);
860 /* (Definetely) Add an entry TODO yet assumes hold_all_sigs() is held! */
861 static void a_tty_hist_add(char const *s
, enum n_go_input_flags gif
);
864 /* Adjust an active raw mode to use / not use a timeout */
865 # ifdef HAVE_KEY_BINDINGS
866 static void a_tty_term_rawmode_timeout(struct a_tty_line
*tlp
, bool_t enable
);
869 /* 0-X (2), UI8_MAX == \t / HT */
870 static ui8_t
a_tty_wcwidth(wchar_t wc
);
872 /* Memory / cell / word generics */
873 static void a_tty_check_grow(struct a_tty_line
*tlp
, ui32_t no
874 n_MEMORY_DEBUG_ARGS
);
875 static ssize_t
a_tty_cell2dat(struct a_tty_line
*tlp
);
876 static void a_tty_cell2save(struct a_tty_line
*tlp
);
878 /* Save away data bytes of given range (max = non-inclusive) */
879 static void a_tty_copy2paste(struct a_tty_line
*tlp
, struct a_tty_cell
*tcpmin
,
880 struct a_tty_cell
*tcpmax
);
882 /* Ask user for hexadecimal number, interpret as UTF-32 */
883 static wchar_t a_tty_vinuni(struct a_tty_line
*tlp
);
885 /* Visual screen synchronization */
886 static bool_t
a_tty_vi_refresh(struct a_tty_line
*tlp
);
888 static bool_t
a_tty_vi__paint(struct a_tty_line
*tlp
);
890 /* Search for word boundary, starting at tl_cursor, in "dir"ection (<> 0).
891 * Return <0 when moving is impossible (backward direction but in position 0,
892 * forward direction but in outermost column), and relative distance to
893 * tl_cursor otherwise */
894 static si32_t
a_tty_wboundary(struct a_tty_line
*tlp
, si32_t dir
);
896 /* Most function implementations */
897 static void a_tty_khome(struct a_tty_line
*tlp
, bool_t dobell
);
898 static void a_tty_kend(struct a_tty_line
*tlp
);
899 static void a_tty_kbs(struct a_tty_line
*tlp
);
900 static void a_tty_ksnarf(struct a_tty_line
*tlp
, bool_t cplline
, bool_t dobell
);
901 static si32_t
a_tty_kdel(struct a_tty_line
*tlp
);
902 static void a_tty_kleft(struct a_tty_line
*tlp
);
903 static void a_tty_kright(struct a_tty_line
*tlp
);
904 static void a_tty_ksnarfw(struct a_tty_line
*tlp
, bool_t fwd
);
905 static void a_tty_kgow(struct a_tty_line
*tlp
, si32_t dir
);
906 static void a_tty_kgoscr(struct a_tty_line
*tlp
, si32_t dir
);
907 static bool_t
a_tty_kother(struct a_tty_line
*tlp
, wchar_t wc
);
908 static ui32_t
a_tty_kht(struct a_tty_line
*tlp
);
911 /* Return UI32_MAX on "exhaustion" */
912 static ui32_t
a_tty_khist(struct a_tty_line
*tlp
, bool_t fwd
);
913 static ui32_t
a_tty_khist_search(struct a_tty_line
*tlp
, bool_t fwd
);
915 static ui32_t
a_tty__khist_shared(struct a_tty_line
*tlp
,
916 struct a_tty_hist
*thp
);
919 /* Handle a function */
920 static enum a_tty_fun_status
a_tty_fun(struct a_tty_line
*tlp
,
921 enum a_tty_bind_flags tbf
, size_t *len
);
924 static ssize_t
a_tty_readline(struct a_tty_line
*tlp
, size_t len
,
925 bool_t
*histok_or_null n_MEMORY_DEBUG_ARGS
);
927 # ifdef HAVE_KEY_BINDINGS
928 /* Find context or -1 */
929 static enum n_go_input_flags
a_tty_bind_ctx_find(char const *name
);
931 /* Create (or replace, if allowed) a binding */
932 static bool_t
a_tty_bind_create(struct a_tty_bind_parse_ctx
*tbpcp
,
935 /* Shared implementation to parse `bind' and `unbind' "key-sequence" and
936 * "expansion" command line arguments into something that we can work with */
937 static bool_t
a_tty_bind_parse(bool_t isbindcmd
,
938 struct a_tty_bind_parse_ctx
*tbpcp
);
940 /* Lazy resolve a termcap(5)/terminfo(5) (or *termcap*!) capability */
941 static void a_tty_bind_resolve(struct a_tty_bind_ctx
*tbcp
);
943 /* Delete an existing binding */
944 static void a_tty_bind_del(struct a_tty_bind_parse_ctx
*tbpcp
);
946 /* Life cycle of all input node trees */
947 static void a_tty_bind_tree_build(void);
948 static void a_tty_bind_tree_teardown(void);
950 static void a_tty__bind_tree_add(ui32_t hmap_idx
,
951 struct a_tty_bind_tree
*store
[HSHSIZE
],
952 struct a_tty_bind_ctx
*tbcp
);
953 static struct a_tty_bind_tree
*a_tty__bind_tree_add_wc(
954 struct a_tty_bind_tree
**treep
, struct a_tty_bind_tree
*parentp
,
955 wchar_t wc
, bool_t isseq
);
956 static void a_tty__bind_tree_free(struct a_tty_bind_tree
*tbtp
);
957 # endif /* HAVE_KEY_BINDINGS */
960 a_tty_signal(int sig
){
961 /* Prototype at top */
963 NYD_X
; /* Signal handler */
965 n_COLOUR( n_colour_env_gut(); ) /* TODO NO SIMPLE SUSPENSION POSSIBLE.. */
966 a_tty_term_mode(FAL0
);
967 n_TERMCAP_SUSPEND(TRU1
);
971 sigaddset(&nset
, sig
);
972 sigprocmask(SIG_UNBLOCK
, &nset
, &oset
);
974 /* When we come here we'll continue editing, so reestablish */
975 sigprocmask(SIG_BLOCK
, &oset
, (sigset_t
*)NULL
);
977 /* TODO THEREFORE NEED TO _GUT() .. _CREATE() ENTIRE ENVS!! */
978 n_COLOUR( n_colour_env_create(n_COLOUR_CTX_MLE
, n_tty_fp
, FAL0
); )
980 n_TERMCAP_RESUME(TRU1
);
981 a_tty_term_mode(TRU1
);
982 a_tty
.tg_line
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
986 a_tty_term_mode(bool_t raw
){
987 struct termios
*tiosp
;
990 tiosp
= &a_tty
.tg_tios_old
;
994 /* Always requery the attributes, in case we've been moved from background
995 * to foreground or however else in between sessions */
996 /* XXX Always enforce ECHO and ICANON in the OLD attributes - do so as long
997 * XXX as we don't properly deal with TTIN and TTOU etc. */
998 tcgetattr(STDIN_FILENO
, tiosp
); /* TODO v15: use _only_ n_tty_fp! */
999 tiosp
->c_lflag
|= ECHO
| ICANON
;
1001 memcpy(&a_tty
.tg_tios_new
, tiosp
, sizeof *tiosp
);
1002 tiosp
= &a_tty
.tg_tios_new
;
1003 tiosp
->c_cc
[VMIN
] = 1;
1004 tiosp
->c_cc
[VTIME
] = 0;
1005 /* Enable ^\, ^Q and ^S to be used for key bindings */
1006 tiosp
->c_cc
[VQUIT
] = tiosp
->c_cc
[VSTART
] = tiosp
->c_cc
[VSTOP
] = '\0';
1007 tiosp
->c_iflag
&= ~(ISTRIP
| IGNCR
);
1008 tiosp
->c_lflag
&= ~(ECHO
/*| ECHOE | ECHONL */| ICANON
| IEXTEN
);
1010 tcsetattr(STDIN_FILENO
, TCSADRAIN
, tiosp
);
1014 # ifdef HAVE_HISTORY
1016 a_tty_hist_load(void){
1018 size_t lsize
, cnt
, llen
;
1027 if((v
= a_tty_hist__query_config()) == NULL
||
1028 a_tty
.tg_hist_size_max
== 0)
1031 hold_all_sigs(); /* TODO too heavy, yet we may jump even here!? */
1032 f
= fopen(v
, "r"); /* TODO HISTFILE LOAD: use linebuf pool */
1037 n_err(_("Cannot read *history-file*=%s: %s\n"),
1038 n_shexp_quote_cp(v
, FAL0
), n_err_to_doc(e
));
1042 (void)n_file_lock(fileno(f
), FLT_READ
, 0,0, UIZ_MAX
);
1044 /* Clear old history */
1046 struct a_tty_hist
*thp
;
1048 while((thp
= a_tty
.tg_hist
) != NULL
){
1049 a_tty
.tg_hist
= thp
->th_older
;
1052 a_tty
.tg_hist_tail
= NULL
;
1053 a_tty
.tg_hist_size
= 0;
1058 cnt
= (size_t)fsize(f
);
1061 while(fgetline(&lbuf
, &lsize
, &cnt
, &llen
, f
, FAL0
) != NULL
){
1063 /* Hand-edited history files may have this, probably */
1064 while(llen
> 0 && spacechar(cp
[0])){
1068 if(llen
> 0 && cp
[llen
- 1] == '\n')
1071 /* Skip empty and comment lines */
1072 if(llen
== 0 || cp
[0] == '#')
1075 if(n_UNLIKELY(version
== 0) &&
1076 (version
= strcmp(cp
, a_TTY_HIST_MARKER
) ? 1 : 2) != 1)
1080 enum n_go_input_flags gif
;
1084 /* XXX n_err(_("Skipped invalid *history-file* entry: %s\n"),
1085 * XXX n_shexp_quote_cp(cp));*/
1091 gif
= n_GO_INPUT_CTX_DEFAULT
; /* == a_TTY_HIST_CTX_DEFAULT */
1094 gif
= n_GO_INPUT_CTX_COMPOSE
; /* == a_TTY_HIST_CTX_COMPOSE */
1099 gif
|= n_GO_INPUT_HIST_GABBY
;
1104 gif
= n_GO_INPUT_CTX_DEFAULT
;
1107 gif
|= n_GO_INPUT_HIST_GABBY
;
1111 a_tty_hist_add(cp
, gif
);
1120 rele_all_sigs(); /* XXX remove jumps */
1127 a_tty_hist_save(void){
1129 struct a_tty_hist
*thp
;
1137 if((v
= a_tty_hist__query_config()) == NULL
||
1138 a_tty
.tg_hist_size_max
== 0)
1141 dogabby
= ok_blook(history_gabby_persist
);
1143 if((thp
= a_tty
.tg_hist
) != NULL
)
1144 for(i
= a_tty
.tg_hist_size_max
; thp
->th_older
!= NULL
;
1145 thp
= thp
->th_older
)
1146 if((dogabby
|| !(thp
->th_flags
& a_TTY_HIST_GABBY
)) && --i
== 0)
1149 hold_all_sigs(); /* TODO too heavy, yet we may jump even here!? */
1150 if((f
= fopen(v
, "w")) == NULL
){ /* TODO temporary + rename?! */
1154 n_err(_("Cannot write *history-file*=%s: %s\n"),
1155 n_shexp_quote_cp(v
, FAL0
), n_err_to_doc(e
));
1159 (void)n_file_lock(fileno(f
), FLT_WRITE
, 0,0, UIZ_MAX
);
1161 if(fwrite(a_TTY_HIST_MARKER
"\n", sizeof *a_TTY_HIST_MARKER
,
1162 sizeof(a_TTY_HIST_MARKER
"\n") -1, f
) !=
1163 sizeof(a_TTY_HIST_MARKER
"\n") -1)
1165 else for(; thp
!= NULL
; thp
= thp
->th_younger
){
1166 if(dogabby
|| !(thp
->th_flags
& a_TTY_HIST_GABBY
)){
1169 switch(thp
->th_flags
& a_TTY_HIST_CTX_MASK
){
1171 case a_TTY_HIST_CTX_DEFAULT
:
1174 case a_TTY_HIST_CTX_COMPOSE
:
1178 if(putc(c
, f
) == EOF
)
1181 if((thp
->th_flags
& a_TTY_HIST_GABBY
) && putc('*', f
) == EOF
)
1184 if(putc(' ', f
) == EOF
||
1185 fwrite(thp
->th_dat
, sizeof *thp
->th_dat
, thp
->th_len
, f
) !=
1186 sizeof(*thp
->th_dat
) * thp
->th_len
||
1187 putc('\n', f
) == EOF
){
1189 n_err(_("I/O error while writing *history-file* %s\n"),
1190 n_shexp_quote_cp(v
, FAL0
));
1199 rele_all_sigs(); /* XXX remove jumps */
1206 a_tty_hist__query_config(void){
1207 char const *rv
, *cp
;
1210 if((cp
= ok_vlook(NAIL_HISTSIZE
)) != NULL
)
1211 n_OBSOLETE(_("please use *history-size* instead of *NAIL_HISTSIZE*"));
1212 if((rv
= ok_vlook(history_size
)) == NULL
)
1215 a_tty
.tg_hist_size_max
= UIZ_MAX
;
1217 (void)n_idec_uiz_cp(&a_tty
.tg_hist_size_max
, rv
, 10, NULL
);
1219 if((cp
= ok_vlook(NAIL_HISTFILE
)) != NULL
)
1220 n_OBSOLETE(_("please use *history-file* instead of *NAIL_HISTFILE*"));
1221 if((rv
= ok_vlook(history_file
)) == NULL
)
1224 rv
= fexpand(rv
, FEXP_LOCAL
| FEXP_NSHELL
);
1230 a_tty_hist_add(char const *s
, enum n_go_input_flags gif
){
1232 struct a_tty_hist
*thp
, *othp
, *ythp
;
1235 l
= (ui32_t
)strlen(s
); /* xxx simply do not store if >= SI32_MAX */
1237 /* Eliminating duplicates is expensive, but simply inacceptable so
1238 * during the load of a potentially large history file! */
1239 if(n_psonce
& n_PSO_LINE_EDITOR_INIT
)
1240 for(thp
= a_tty
.tg_hist
; thp
!= NULL
; thp
= thp
->th_older
)
1241 if(thp
->th_len
== l
&& !strcmp(thp
->th_dat
, s
)){
1242 thp
->th_flags
= (gif
& a_TTY_HIST_CTX_MASK
) |
1243 (gif
& n_GO_INPUT_HIST_GABBY
? a_TTY_HIST_GABBY
: 0);
1244 othp
= thp
->th_older
;
1245 ythp
= thp
->th_younger
;
1247 othp
->th_younger
= ythp
;
1249 a_tty
.tg_hist_tail
= ythp
;
1251 ythp
->th_older
= othp
;
1253 a_tty
.tg_hist
= othp
;
1257 if(n_LIKELY(a_tty
.tg_hist_size
<= a_tty
.tg_hist_size_max
))
1258 ++a_tty
.tg_hist_size
;
1260 --a_tty
.tg_hist_size
;
1261 if((thp
= a_tty
.tg_hist_tail
) != NULL
){
1262 if((a_tty
.tg_hist_tail
= thp
->th_younger
) == NULL
)
1263 a_tty
.tg_hist
= NULL
;
1265 a_tty
.tg_hist_tail
->th_older
= NULL
;
1270 thp
= n_alloc(n_VSTRUCT_SIZEOF(struct a_tty_hist
, th_dat
) + l
+1);
1272 thp
->th_flags
= (gif
& a_TTY_HIST_CTX_MASK
) |
1273 (gif
& n_GO_INPUT_HIST_GABBY
? a_TTY_HIST_GABBY
: 0);
1274 memcpy(thp
->th_dat
, s
, l
+1);
1276 if((thp
->th_older
= a_tty
.tg_hist
) != NULL
)
1277 a_tty
.tg_hist
->th_younger
= thp
;
1279 a_tty
.tg_hist_tail
= thp
;
1280 thp
->th_younger
= NULL
;
1281 a_tty
.tg_hist
= thp
;
1284 # endif /* HAVE_HISTORY */
1286 # ifdef HAVE_KEY_BINDINGS
1288 a_tty_term_rawmode_timeout(struct a_tty_line
*tlp
, bool_t enable
){
1293 a_tty
.tg_tios_new
.c_cc
[VMIN
] = 0;
1294 if((bt
= tlp
->tl_bind_timeout
) == 0)
1295 bt
= a_TTY_BIND_TIMEOUT
;
1296 a_tty
.tg_tios_new
.c_cc
[VTIME
] = bt
;
1298 a_tty
.tg_tios_new
.c_cc
[VMIN
] = 1;
1299 a_tty
.tg_tios_new
.c_cc
[VTIME
] = 0;
1301 tcsetattr(STDIN_FILENO
, TCSANOW
, &a_tty
.tg_tios_new
);
1304 # endif /* HAVE_KEY_BINDINGS */
1307 a_tty_wcwidth(wchar_t wc
){
1311 /* Special case the reverse solidus at first */
1317 # ifdef HAVE_WCWIDTH
1318 rv
= ((i
= wcwidth(wc
)) > 0) ? (ui8_t
)i
: 0;
1320 rv
= iswprint(wc
) ? 1 + (wc
>= 0x1100u
) : 0; /* TODO use S-CText */
1328 a_tty_check_grow(struct a_tty_line
*tlp
, ui32_t no n_MEMORY_DEBUG_ARGS
){
1332 if(n_UNLIKELY((cmax
= tlp
->tl_count
+ no
) > tlp
->tl_count_max
)){
1335 i
= cmax
* sizeof(struct a_tty_cell
) + 2 * sizeof(struct a_tty_cell
);
1336 if(n_LIKELY(i
>= *tlp
->tl_x_bufsize
)){
1337 hold_all_sigs(); /* XXX v15 drop */
1340 *tlp
->tl_x_buf
= (n_realloc
)(*tlp
->tl_x_buf
, i
1341 n_MEMORY_DEBUG_ARGSCALL
);
1342 rele_all_sigs(); /* XXX v15 drop */
1344 tlp
->tl_count_max
= cmax
;
1345 *tlp
->tl_x_bufsize
= i
;
1351 a_tty_cell2dat(struct a_tty_line
*tlp
){
1357 if(n_LIKELY((i
= tlp
->tl_count
) > 0)){
1358 struct a_tty_cell
const *tcap
;
1360 tcap
= tlp
->tl_line
.cells
;
1362 memcpy(tlp
->tl_line
.cbuf
+ len
, tcap
->tc_cbuf
, tcap
->tc_count
);
1363 len
+= tcap
->tc_count
;
1364 }while(++tcap
, --i
> 0);
1367 tlp
->tl_line
.cbuf
[len
] = '\0';
1369 return (ssize_t
)len
;
1373 a_tty_cell2save(struct a_tty_line
*tlp
){
1375 struct a_tty_cell
*tcap
;
1378 tlp
->tl_savec
.s
= NULL
;
1379 tlp
->tl_savec
.l
= 0;
1381 if(n_UNLIKELY(tlp
->tl_count
== 0))
1384 for(tcap
= tlp
->tl_line
.cells
, len
= 0, i
= tlp
->tl_count
; i
> 0;
1386 len
+= tcap
->tc_count
;
1388 tlp
->tl_savec
.s
= n_autorec_alloc((tlp
->tl_savec
.l
= len
) +1);
1390 for(tcap
= tlp
->tl_line
.cells
, len
= 0, i
= tlp
->tl_count
; i
> 0;
1392 memcpy(tlp
->tl_savec
.s
+ len
, tcap
->tc_cbuf
, tcap
->tc_count
);
1393 len
+= tcap
->tc_count
;
1395 tlp
->tl_savec
.s
[len
] = '\0';
1401 a_tty_copy2paste(struct a_tty_line
*tlp
, struct a_tty_cell
*tcpmin
,
1402 struct a_tty_cell
*tcpmax
){
1404 struct a_tty_cell
*tcp
;
1409 for(tcp
= tcpmin
; tcp
< tcpmax
; ++tcp
)
1412 tlp
->tl_pastebuf
.s
= cp
= n_autorec_alloc((tlp
->tl_pastebuf
.l
= l
) +1);
1414 for(tcp
= tcpmin
; tcp
< tcpmax
; cp
+= l
, ++tcp
)
1415 memcpy(cp
, tcp
->tc_cbuf
, l
= tcp
->tc_count
);
1421 a_tty_vinuni(struct a_tty_line
*tlp
){
1429 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
) ||
1430 !n_termcap_cmd(n_TERMCAP_CMD_ce
, 0, -1))
1434 struct str
const *cpre
, *csuf
;
1438 if(n_COLOUR_IS_ACTIVE()){
1439 struct n_colour_pen
*cpen
;
1441 cpen
= n_colour_pen_create(n_COLOUR_ID_MLE_PROMPT
, NULL
);
1442 if((cpre
= n_colour_pen_to_str(cpen
)) != NULL
)
1443 csuf
= n_colour_reset_to_str();
1446 fprintf(n_tty_fp
, _("%sPlease enter Unicode code point:%s "),
1447 (cpre
!= NULL
? cpre
->s
: n_empty
),
1448 (csuf
!= NULL
? csuf
->s
: n_empty
));
1452 buf
[sizeof(buf
) -1] = '\0';
1454 if(read(STDIN_FILENO
, &buf
[i
], 1) != 1){
1455 if(n_err_no
== n_ERR_INTR
) /* xxx #if !SA_RESTART ? */
1461 if(!hexchar(buf
[i
])){
1462 char const emsg
[] = "[0-9a-fA-F]";
1464 n_LCTA(sizeof emsg
<= sizeof(buf
), "Preallocated buffer too small");
1465 memcpy(buf
, emsg
, sizeof emsg
);
1469 putc(buf
[i
], n_tty_fp
);
1471 if(++i
== sizeof buf
)
1476 if((n_idec_uiz_cp(&i
, buf
, 16, NULL
1477 ) & (n_IDEC_STATE_EMASK
| n_IDEC_STATE_CONSUMED
)
1478 ) != n_IDEC_STATE_CONSUMED
|| i
> 0x10FFFF/* XXX magic; CText */){
1480 n_err(_("\nInvalid input: %s\n"), buf
);
1486 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
| (wc
== '\0' ? a_TTY_VF_BELL
: 0);
1492 a_tty_vi_refresh(struct a_tty_line
*tlp
){
1496 if(tlp
->tl_vi_flags
& a_TTY_VF_BELL
){
1497 tlp
->tl_vi_flags
|= a_TTY_VF_SYNC
;
1498 if(putc('\a', n_tty_fp
) == EOF
)
1502 if(tlp
->tl_vi_flags
& a_TTY_VF_REFRESH
){
1503 /* kht may want to restore a cursor position after inserting some
1505 if(tlp
->tl_defc_cursor_byte
> 0){
1509 a_tty_khome(tlp
, FAL0
);
1511 i
= tlp
->tl_defc_cursor_byte
;
1512 tlp
->tl_defc_cursor_byte
= 0;
1513 for(j
= 0; tlp
->tl_cursor
< tlp
->tl_count
; ++j
){
1515 if((k
= tlp
->tl_line
.cells
[j
].tc_count
) > i
)
1521 if(!a_tty_vi__paint(tlp
))
1525 if(tlp
->tl_vi_flags
& a_TTY_VF_SYNC
){
1526 tlp
->tl_vi_flags
&= ~a_TTY_VF_SYNC
;
1527 if(fflush(n_tty_fp
))
1533 tlp
->tl_vi_flags
&= ~a_TTY_VF_ALL_MASK
;
1538 clearerr(n_tty_fp
); /* xxx I/O layer rewrite */
1539 n_err(_("Visual refresh failed! Is $TERM set correctly?\n"
1540 " Setting *line-editor-disable* to get us through!\n"));
1541 ok_bset(line_editor_disable
);
1547 a_tty_vi__paint(struct a_tty_line
*tlp
){
1549 a_TRUE_RV
= a_TTY__VF_LAST
<<1, /* Return value bit */
1550 a_HAVE_PROMPT
= a_TTY__VF_LAST
<<2, /* Have a prompt */
1551 a_SHOW_PROMPT
= a_TTY__VF_LAST
<<3, /* Shall print the prompt */
1552 a_MOVE_CURSOR
= a_TTY__VF_LAST
<<4, /* Move visual cursor for user! */
1553 a_LEFT_MIN
= a_TTY__VF_LAST
<<5, /* On left boundary */
1554 a_RIGHT_MAX
= a_TTY__VF_LAST
<<6,
1555 a_HAVE_POSITION
= a_TTY__VF_LAST
<<7, /* Print the position indicator */
1557 /* We carry some flags over invocations (not worth a specific field) */
1558 a_VISIBLE_PROMPT
= a_TTY__VF_LAST
<<8, /* The prompt is on the screen */
1559 a_PERSIST_MASK
= a_VISIBLE_PROMPT
,
1560 a__LAST
= a_PERSIST_MASK
1563 ui32_t f
, w
, phy_wid_base
, phy_wid
, phy_base
, phy_cur
, cnt
,
1564 DBG(lstcur COMMA
) cur
,
1565 vi_left
, /*vi_right,*/ phy_nxtcur
;
1566 struct a_tty_cell
const *tccp
, *tcp_left
, *tcp_right
, *tcxp
;
1568 n_LCTA(UICMP(64, a__LAST
, <, UI32_MAX
), "Flag bits excess storage datatype");
1570 f
= tlp
->tl_vi_flags
;
1571 tlp
->tl_vi_flags
= (f
& ~(a_TTY_VF_REFRESH
| a_PERSIST_MASK
)) |
1574 if((w
= tlp
->tl_prompt_width
) > 0)
1576 f
|= a_HAVE_POSITION
;
1578 /* XXX We don't have a OnTerminalResize event (see main.c) yet, so we need
1579 * XXX to reevaluate our circumstances over and over again */
1580 /* Don't display prompt or position indicator on very small screens */
1581 if((phy_wid_base
= (ui32_t
)n_scrnwidth
) <= a_TTY_WIDTH_RIPOFF
)
1582 f
&= ~(a_HAVE_PROMPT
| a_HAVE_POSITION
);
1584 phy_wid_base
-= a_TTY_WIDTH_RIPOFF
;
1586 /* Disable the prompt if the screen is too small; due to lack of some
1587 * indicator simply add a second ripoff */
1588 if((f
& a_HAVE_PROMPT
) && w
+ a_TTY_WIDTH_RIPOFF
>= phy_wid_base
)
1589 f
&= ~a_HAVE_PROMPT
;
1592 phy_wid
= phy_wid_base
;
1594 phy_cur
= tlp
->tl_phy_cursor
;
1595 cnt
= tlp
->tl_count
;
1596 DBG( lstcur
= tlp
->tl_lst_cursor
; )
1598 /* XXX Assume dirty screen if shrunk */
1599 if(cnt
< tlp
->tl_lst_count
)
1600 f
|= a_TTY_VF_MOD_DIRTY
;
1602 /* TODO Without HAVE_TERMCAP, it would likely be much cheaper to simply
1603 * TODO always "cr + paint + ce + ch", since ce is simulated via spaces.. */
1605 /* Quickshot: if the line is empty, possibly print prompt and out */
1607 /* In that special case dirty anything if it seems better */
1608 if((f
& a_TTY_VF_MOD_CONTENT
) || tlp
->tl_lst_count
> 0)
1609 f
|= a_TTY_VF_MOD_DIRTY
;
1611 if((f
& a_TTY_VF_MOD_DIRTY
) && phy_cur
!= 0){
1612 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
))
1617 if((f
& (a_TTY_VF_MOD_DIRTY
| a_HAVE_PROMPT
)) ==
1618 (a_TTY_VF_MOD_DIRTY
| a_HAVE_PROMPT
)){
1619 if(fputs(tlp
->tl_prompt
, n_tty_fp
) == EOF
)
1621 phy_cur
= tlp
->tl_prompt_width
+ 1;
1624 /* May need to clear former line content */
1625 if((f
& a_TTY_VF_MOD_DIRTY
) &&
1626 !n_termcap_cmd(n_TERMCAP_CMD_ce
, phy_cur
, -1))
1629 tlp
->tl_phy_start
= tlp
->tl_line
.cells
;
1633 /* Try to get an idea of the visual window */
1635 /* Find the left visual boundary */
1636 phy_wid
= (phy_wid
>> 1) + (phy_wid
>> 2);
1637 if((cur
= tlp
->tl_cursor
) == cnt
)
1640 w
= (tcp_left
= tccp
= tlp
->tl_line
.cells
+ cur
)->tc_width
;
1641 if(w
== UI8_MAX
) /* TODO yet HT == SPACE */
1643 while(tcp_left
> tlp
->tl_line
.cells
){
1644 ui16_t cw
= tcp_left
[-1].tc_width
;
1646 if(cw
== UI8_MAX
) /* TODO yet HT == SPACE */
1648 if(w
+ cw
>= phy_wid
)
1655 /* If the left hand side of our visual viewpoint consumes less than half
1656 * of the screen width, show the prompt */
1657 if(tcp_left
== tlp
->tl_line
.cells
)
1660 if((f
& (a_LEFT_MIN
| a_HAVE_PROMPT
)) == (a_LEFT_MIN
| a_HAVE_PROMPT
) &&
1661 w
+ tlp
->tl_prompt_width
< phy_wid
){
1662 phy_base
= tlp
->tl_prompt_width
;
1666 /* Then search for right boundary. We always leave the rightmost column
1667 * empty because some terminals [cw]ould wrap the line if we write into
1668 * that. XXX terminfo(5)/termcap(5) have the semi_auto_right_margin/sam/YE
1669 * XXX capability to indicate this, but we don't look at that */
1670 phy_wid
= phy_wid_base
- phy_base
;
1671 tcp_right
= tlp
->tl_line
.cells
+ cnt
;
1673 while(&tccp
[1] < tcp_right
){
1674 ui16_t cw
= tccp
[1].tc_width
;
1677 if(cw
== UI8_MAX
) /* TODO yet HT == SPACE */
1685 /*vi_right = w - vi_left;*/
1687 /* If the complete line including prompt fits on the screen, show prompt */
1688 if(--tcp_right
== tccp
){
1691 /* Since we did brute-force walk also for the left boundary we may end up
1692 * in a situation were anything effectively fits on the screen, including
1693 * the prompt that is, but were we don't recognize this since we
1694 * restricted the search to fit in some visual viewpoint. Therefore try
1695 * again to extend the left boundary to overcome that */
1696 if(!(f
& a_LEFT_MIN
)){
1697 struct a_tty_cell
const *tc1p
= tlp
->tl_line
.cells
;
1698 ui32_t vil1
= vi_left
;
1700 assert(!(f
& a_SHOW_PROMPT
));
1701 w
+= tlp
->tl_prompt_width
;
1702 for(tcxp
= tcp_left
;;){
1703 ui32_t i
= tcxp
[-1].tc_width
;
1705 if(i
== UI8_MAX
) /* TODO yet HT == SPACE */
1719 /*w -= tlp->tl_prompt_width;*/
1723 tccp
= tlp
->tl_line
.cells
+ cur
;
1725 if((f
& (a_LEFT_MIN
| a_RIGHT_MAX
| a_HAVE_PROMPT
| a_SHOW_PROMPT
)) ==
1726 (a_LEFT_MIN
| a_RIGHT_MAX
| a_HAVE_PROMPT
) &&
1727 w
+ tlp
->tl_prompt_width
<= phy_wid
){
1728 phy_wid
-= (phy_base
= tlp
->tl_prompt_width
);
1732 /* Try to avoid repainting the complete line - this is possible if the
1733 * cursor "did not leave the screen" and the prompt status hasn't changed.
1734 * I.e., after clamping virtual viewpoint, compare relation to physical */
1735 if((f
& (a_TTY_VF_MOD_SINGLE
/*FIXME*/ |
1736 a_TTY_VF_MOD_CONTENT
/* xxx */ | a_TTY_VF_MOD_DIRTY
)) ||
1737 (tcxp
= tlp
->tl_phy_start
) == NULL
||
1738 tcxp
> tccp
|| tcxp
<= tcp_right
)
1739 f
|= a_TTY_VF_MOD_DIRTY
;
1741 f
|= a_TTY_VF_MOD_DIRTY
;
1743 struct a_tty_cell
const *tcyp
;
1744 si32_t cur_displace
;
1745 ui32_t phy_lmargin
, phy_rmargin
, fx
, phy_displace
;
1747 phy_lmargin
= (fx
= phy_wid
) / 100;
1748 phy_rmargin
= fx
- (phy_lmargin
* a_TTY_SCROLL_MARGIN_RIGHT
);
1749 phy_lmargin
*= a_TTY_SCROLL_MARGIN_LEFT
;
1750 fx
= (f
& (a_SHOW_PROMPT
| a_VISIBLE_PROMPT
));
1752 if(fx
== 0 || fx
== (a_SHOW_PROMPT
| a_VISIBLE_PROMPT
)){
1758 /* We know what we have to paint, start synchronizing */
1760 assert(phy_cur
== tlp
->tl_phy_cursor
);
1761 assert(phy_wid
== phy_wid_base
- phy_base
);
1762 assert(cnt
== tlp
->tl_count
);
1764 assert(lstcur
== tlp
->tl_lst_cursor
);
1765 assert(tccp
== tlp
->tl_line
.cells
+ cur
);
1767 phy_nxtcur
= phy_base
; /* FIXME only if repaint cpl. */
1769 /* Quickshot: is it only cursor movement within the visible screen? */
1770 if((f
& a_TTY_VF_REFRESH
) == a_TTY_VF_MOD_CURSOR
){
1775 /* To be able to apply some quick jump offs, clear line if possible */
1776 if(f
& a_TTY_VF_MOD_DIRTY
){
1777 /* Force complete clearance and cursor reinitialization */
1778 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
) ||
1779 !n_termcap_cmd(n_TERMCAP_CMD_ce
, 0, -1))
1781 tlp
->tl_phy_start
= tcp_left
;
1785 if((f
& (a_TTY_VF_MOD_DIRTY
| a_SHOW_PROMPT
)) && phy_cur
!= 0){
1786 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
))
1791 if(f
& a_SHOW_PROMPT
){
1792 assert(phy_base
== tlp
->tl_prompt_width
);
1793 if(fputs(tlp
->tl_prompt
, n_tty_fp
) == EOF
)
1795 phy_cur
= phy_nxtcur
;
1796 f
|= a_VISIBLE_PROMPT
;
1798 f
&= ~a_VISIBLE_PROMPT
;
1800 /* FIXME reposition cursor for paint */
1801 for(w
= phy_nxtcur
; tcp_left
<= tcp_right
; ++tcp_left
){
1804 cw
= tcp_left
->tc_width
;
1806 if(n_LIKELY(!tcp_left
->tc_novis
)){
1807 if(fwrite(tcp_left
->tc_cbuf
, sizeof *tcp_left
->tc_cbuf
,
1808 tcp_left
->tc_count
, n_tty_fp
) != tcp_left
->tc_count
)
1810 }else{ /* XXX Shouldn't be here <-> CText, ui_str.c */
1811 char wbuf
[8]; /* XXX magic */
1813 if(n_psonce
& n_PSO_UNICODE
){
1816 wc
= (ui32_t
)tcp_left
->tc_wc
;
1817 if((wc
& ~0x1Fu
) == 0)
1823 n_utf32_to_utf8(wc
, wbuf
);
1825 wbuf
[0] = '?', wbuf
[1] = '\0';
1827 if(fputs(wbuf
, n_tty_fp
) == EOF
)
1832 if(cw
== UI8_MAX
) /* TODO yet HT == SPACE */
1835 if(tcp_left
== tccp
)
1840 /* Write something position marker alike if it does not fit on screen */
1841 if((f
& a_HAVE_POSITION
) &&
1842 ((f
& (a_LEFT_MIN
| a_RIGHT_MAX
)) != (a_LEFT_MIN
| a_RIGHT_MAX
) ||
1843 ((f
& a_HAVE_PROMPT
) && !(f
& a_SHOW_PROMPT
)))){
1845 char *posbuf
= tlp
->tl_pos_buf
, *pos
= tlp
->tl_pos
;
1847 char posbuf
[5], *pos
= posbuf
;
1852 if(phy_cur
!= (w
= phy_wid_base
) &&
1853 !n_termcap_cmd(n_TERMCAP_CMD_ch
, phy_cur
= w
, 0))
1857 if((f
& a_LEFT_MIN
) && (!(f
& a_HAVE_PROMPT
) || (f
& a_SHOW_PROMPT
)))
1858 memcpy(pos
, "^.+", 3);
1859 else if(f
& a_RIGHT_MAX
)
1860 memcpy(pos
, ".+$", 3);
1862 /* Theoretical line length limit a_TTY_LINE_MAX, choose next power of
1863 * ten (10 ** 10) to represent 100 percent, since we don't have a macro
1864 * that generates a constant, and i don't trust the standard "u type
1865 * suffix automatically scales" calculate the large number */
1866 static char const itoa
[] = "0123456789";
1868 ui64_t
const fact100
= (ui64_t
)0x3B9ACA00u
* 10u, fact
= fact100
/ 100;
1869 ui32_t i
= (ui32_t
)(((fact100
/ cnt
) * tlp
->tl_cursor
) / fact
);
1870 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
1873 pos
[0] = ' ', pos
[1] = itoa
[i
];
1875 pos
[1] = itoa
[i
% 10], pos
[0] = itoa
[i
/ 10];
1879 if(fputs(posbuf
, n_tty_fp
) == EOF
)
1884 /* Users are used to see the cursor right of the point of interest, so we
1885 * need some further adjustments unless in special conditions. Be aware
1886 * that we may have adjusted cur at the beginning, too */
1887 if((cur
= tlp
->tl_cursor
) == 0)
1888 phy_nxtcur
= phy_base
;
1889 else if(cur
!= cnt
){
1890 ui16_t cw
= tccp
->tc_width
;
1892 if(cw
== UI8_MAX
) /* TODO yet HT == SPACE */
1898 if(((f
& a_MOVE_CURSOR
) || phy_nxtcur
!= phy_cur
) &&
1899 !n_termcap_cmd(n_TERMCAP_CMD_ch
, phy_cur
= phy_nxtcur
, 0))
1903 tlp
->tl_vi_flags
|= (f
& a_PERSIST_MASK
);
1904 tlp
->tl_lst_count
= tlp
->tl_count
;
1905 tlp
->tl_lst_cursor
= tlp
->tl_cursor
;
1906 tlp
->tl_phy_cursor
= phy_cur
;
1909 return ((f
& a_TRUE_RV
) != 0);
1916 a_tty_wboundary(struct a_tty_line
*tlp
, si32_t dir
){/* TODO shell token-wise */
1918 struct a_tty_cell
*tcap
;
1923 assert(dir
== 1 || dir
== -1);
1926 cnt
= tlp
->tl_count
;
1927 cur
= tlp
->tl_cursor
;
1932 }else if(cur
+ 1 >= cnt
)
1935 --cnt
, --cur
; /* xxx Unsigned wrapping may occur (twice), then */
1937 for(rv
= 0, tcap
= tlp
->tl_line
.cells
, anynon
= FAL0
;;){
1940 wc
= tcap
[cur
+= (ui32_t
)dir
].tc_wc
;
1941 if(/*TODO not everywhere iswblank(wc)*/ wc
== L
' ' || wc
== L
'\t' ||
1953 }else if(cur
+ 1 >= cnt
){
1964 a_tty_khome(struct a_tty_line
*tlp
, bool_t dobell
){
1968 if(n_LIKELY(tlp
->tl_cursor
> 0)){
1970 f
= a_TTY_VF_MOD_CURSOR
;
1976 tlp
->tl_vi_flags
|= f
;
1981 a_tty_kend(struct a_tty_line
*tlp
){
1985 if(n_LIKELY(tlp
->tl_cursor
< tlp
->tl_count
)){
1986 tlp
->tl_cursor
= tlp
->tl_count
;
1987 f
= a_TTY_VF_MOD_CURSOR
;
1991 tlp
->tl_vi_flags
|= f
;
1996 a_tty_kbs(struct a_tty_line
*tlp
){
2000 cur
= tlp
->tl_cursor
;
2001 cnt
= tlp
->tl_count
;
2003 if(n_LIKELY(cur
> 0)){
2004 tlp
->tl_cursor
= --cur
;
2005 tlp
->tl_count
= --cnt
;
2007 if((cnt
-= cur
) > 0){
2008 struct a_tty_cell
*tcap
;
2010 tcap
= tlp
->tl_line
.cells
+ cur
;
2011 memmove(tcap
, &tcap
[1], cnt
*= sizeof(*tcap
));
2013 f
= a_TTY_VF_MOD_CURSOR
| a_TTY_VF_MOD_CONTENT
;
2017 tlp
->tl_vi_flags
|= f
;
2022 a_tty_ksnarf(struct a_tty_line
*tlp
, bool_t cplline
, bool_t dobell
){
2029 if(cplline
&& i
> 0){
2030 tlp
->tl_cursor
= i
= 0;
2031 f
= a_TTY_VF_MOD_CURSOR
;
2034 if(n_LIKELY(i
< tlp
->tl_count
)){
2035 struct a_tty_cell
*tcap
;
2037 tcap
= &tlp
->tl_line
.cells
[0];
2038 a_tty_copy2paste(tlp
, &tcap
[i
], &tcap
[tlp
->tl_count
]);
2040 f
= a_TTY_VF_MOD_CONTENT
;
2044 tlp
->tl_vi_flags
|= f
;
2049 a_tty_kdel(struct a_tty_line
*tlp
){
2054 cur
= tlp
->tl_cursor
;
2055 cnt
= tlp
->tl_count
;
2056 i
= (si32_t
)(cnt
- cur
);
2058 if(n_LIKELY(i
> 0)){
2059 tlp
->tl_count
= --cnt
;
2061 if(n_LIKELY(--i
> 0)){
2062 struct a_tty_cell
*tcap
;
2064 tcap
= &tlp
->tl_line
.cells
[cur
];
2065 memmove(tcap
, &tcap
[1], (ui32_t
)i
* sizeof(*tcap
));
2067 f
= a_TTY_VF_MOD_CONTENT
;
2068 }else if(cnt
== 0 && !ok_blook(ignoreeof
)){
2069 putc('^', n_tty_fp
);
2070 putc('D', n_tty_fp
);
2078 tlp
->tl_vi_flags
|= f
;
2084 a_tty_kleft(struct a_tty_line
*tlp
){
2088 if(n_LIKELY(tlp
->tl_cursor
> 0)){
2090 f
= a_TTY_VF_MOD_CURSOR
;
2094 tlp
->tl_vi_flags
|= f
;
2099 a_tty_kright(struct a_tty_line
*tlp
){
2103 if(n_LIKELY((i
= tlp
->tl_cursor
+ 1) <= tlp
->tl_count
)){
2105 i
= a_TTY_VF_MOD_CURSOR
;
2109 tlp
->tl_vi_flags
|= i
;
2114 a_tty_ksnarfw(struct a_tty_line
*tlp
, bool_t fwd
){
2115 struct a_tty_cell
*tcap
;
2120 if(n_UNLIKELY((i
= a_tty_wboundary(tlp
, (fwd
? +1 : -1))) <= 0)){
2121 f
= (i
< 0) ? a_TTY_VF_BELL
: a_TTY_VF_NONE
;
2125 cnt
= tlp
->tl_count
- (ui32_t
)i
;
2126 cur
= tlp
->tl_cursor
;
2129 tcap
= &tlp
->tl_line
.cells
[cur
];
2131 a_tty_copy2paste(tlp
, &tcap
[0], &tcap
[i
]);
2133 if((tlp
->tl_count
= cnt
) != (tlp
->tl_cursor
= cur
)){
2135 memmove(&tcap
[0], &tcap
[i
], cnt
* sizeof(*tcap
)); /* FIXME*/
2138 f
= a_TTY_VF_MOD_CURSOR
| a_TTY_VF_MOD_CONTENT
;
2140 tlp
->tl_vi_flags
|= f
;
2145 a_tty_kgow(struct a_tty_line
*tlp
, si32_t dir
){
2150 if(n_UNLIKELY((i
= a_tty_wboundary(tlp
, dir
)) <= 0))
2151 f
= (i
< 0) ? a_TTY_VF_BELL
: a_TTY_VF_NONE
;
2155 tlp
->tl_cursor
+= (ui32_t
)i
;
2156 f
= a_TTY_VF_MOD_CURSOR
;
2159 tlp
->tl_vi_flags
|= f
;
2164 a_tty_kgoscr(struct a_tty_line
*tlp
, si32_t dir
){
2165 ui32_t sw
, i
, cur
, f
, cnt
;
2168 sw
= (ui32_t
)n_scrnwidth
- 2;
2169 if(sw
> (i
= tlp
->tl_prompt_width
))
2171 cur
= tlp
->tl_cursor
;
2175 for(cnt
= tlp
->tl_count
; cur
< cnt
&& sw
> 0; ++cur
){
2176 i
= tlp
->tl_line
.cells
[cur
].tc_width
;
2181 while(cur
> 0 && sw
> 0){
2182 i
= tlp
->tl_line
.cells
[--cur
].tc_width
;
2187 if(cur
!= tlp
->tl_cursor
){
2188 tlp
->tl_cursor
= cur
;
2189 f
= a_TTY_VF_MOD_CURSOR
;
2192 tlp
->tl_vi_flags
|= f
;
2197 a_tty_kother(struct a_tty_line
*tlp
, wchar_t wc
){
2198 /* Append if at EOL, insert otherwise;
2199 * since we may move around character-wise, always use a fresh ps */
2201 struct a_tty_cell tc
, *tcap
;
2209 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
2210 if(tlp
->tl_count
+ 1 >= a_TTY_LINE_MAX
){
2211 n_err(_("Stop here, we can't extend line beyond size limit\n"));
2215 /* First init a cell and see whether we'll really handle this wc */
2216 memset(&ps
, 0, sizeof ps
);
2220 l
= wcrtomb(tc
.tc_cbuf
, tc
.tc_wc
= wc
, &ps
);
2221 if(n_UNLIKELY(l
> MB_LEN_MAX
)){
2223 n_err(_("wcrtomb(3) error: too many multibyte character bytes\n"));
2226 tc
.tc_count
= (ui16_t
)l
;
2228 if(n_UNLIKELY((n_psonce
& n_PSO_ENC_MBSTATE
) != 0)){
2229 l
= wcrtomb(&tc
.tc_cbuf
[l
], L
'\0', &ps
);
2230 if(n_LIKELY(l
== 1))
2231 /* Only NUL terminator */;
2232 else if(n_LIKELY(--l
< MB_LEN_MAX
))
2233 tc
.tc_count
+= (ui16_t
)l
;
2239 /* Yes, we will! Place it in the array */
2240 tc
.tc_novis
= (iswprint(wc
) == 0);
2241 tc
.tc_width
= a_tty_wcwidth(wc
);
2242 /* TODO if(tc.tc_novis && tc.tc_width > 0) */
2244 cur
= tlp
->tl_cursor
++;
2245 cnt
= tlp
->tl_count
++ - cur
;
2246 tcap
= &tlp
->tl_line
.cells
[cur
];
2248 memmove(&tcap
[1], tcap
, cnt
* sizeof(*tcap
));
2249 f
= a_TTY_VF_MOD_CONTENT
;
2251 f
= a_TTY_VF_MOD_SINGLE
;
2252 memcpy(tcap
, &tc
, sizeof *tcap
);
2254 f
|= a_TTY_VF_MOD_CURSOR
;
2259 tlp
->tl_vi_flags
|= f
;
2265 a_tty_kht(struct a_tty_line
*tlp
){
2266 ui8_t (*mempool
)[n_MEMORY_POOL_TYPE_SIZEOF
], *mempool_persist
;
2268 struct str orig
, bot
, topp
, sub
, exp
, preexp
;
2269 struct n_string shou
, *shoup
;
2270 struct a_tty_cell
*ctop
, *cx
;
2271 bool_t wedid
, set_savec
;
2275 /* Get plain line data; if this is the first expansion/xy, update the
2276 * very original content so that ^G gets the origin back */
2277 orig
= tlp
->tl_savec
;
2278 a_tty_cell2save(tlp
);
2279 exp
= tlp
->tl_savec
;
2281 /*tlp->tl_savec = orig;*/
2287 mempool_persist
= n_go_data
->gdc_mempool
;
2288 n_memory_pool_push(mempool
= n_lofi_alloc(sizeof *mempool
));
2290 shoup
= n_string_creat_auto(&shou
);
2295 struct a_tty_cell
*cword
;
2297 /* Find the word to be expanded */
2298 cword
= tlp
->tl_line
.cells
;
2299 ctop
= &cword
[tlp
->tl_cursor
];
2300 cx
= &cword
[tlp
->tl_count
];
2302 /* topp: separate data right of cursor */
2304 for(rv
= 0; ctop
< cx
; ++ctop
)
2305 rv
+= ctop
->tc_count
;
2307 topp
.s
= orig
.s
+ orig
.l
- rv
;
2308 ctop
= cword
+ tlp
->tl_cursor
;
2310 topp
.s
= NULL
, topp
.l
= 0;
2312 /* Find the shell token that corresponds to the cursor position */
2315 for(; cword
< ctop
; ++cword
)
2316 max
+= cword
->tc_count
;
2324 enum n_shexp_state shs
;
2327 shs
= n_shexp_parse_token((n_SHEXP_PARSE_DRYRUN
|
2328 n_SHEXP_PARSE_TRIM_SPACE
| n_SHEXP_PARSE_IGNORE_EMPTY
|
2329 n_SHEXP_PARSE_QUOTE_AUTO_CLOSE
), NULL
, &sub
, NULL
);
2333 assert(max
>= sub
.l
);
2339 if(shs
& n_SHEXP_STATE_ERR_MASK
){
2340 n_err(_("Invalid completion pattern: %.*s\n"),
2346 /* All WS? Trailing WS that has been "jumped over"? */
2347 if(exp
.l
== 0 || (shs
& n_SHEXP_STATE_WS_TRAIL
))
2350 n_shexp_parse_token((n_SHEXP_PARSE_TRIM_SPACE
|
2351 n_SHEXP_PARSE_IGNORE_EMPTY
| n_SHEXP_PARSE_QUOTE_AUTO_CLOSE
),
2356 sub
.s
= n_string_cp(shoup
);
2357 sub
.l
= shoup
->s_len
;
2361 /* Leave room for "implicit asterisk" expansion, as below */
2363 sub
.s
= n_UNCONST(n_star
);
2364 sub
.l
= sizeof(n_star
) -1;
2367 preexp
.s
= n_UNCONST(n_empty
);
2368 preexp
.l
= sizeof(n_empty
) -1;
2371 /* TODO Super-Heavy-Metal: block all sigs, avoid leaks on jump */
2373 exp
.s
= fexpand(sub
.s
, a_TTY_TAB_FEXP_FL
);
2376 if(exp
.s
== NULL
|| (exp
.l
= strlen(exp
.s
)) == 0){
2379 /* No. But maybe the users' desire was to complete only a part of the
2380 * shell token of interest! TODO This can be improved, we would need to
2381 * TODO have shexp_parse to create a DOM structure of parsed snippets, so
2382 * TODO that we can tell for each snippet which quote is active and
2383 * TODO whether we may cross its boundary and/or apply expansion for it!
2384 * TODO Only like that we would be able to properly requote user input
2385 * TODO like "'['a-z]<TAB>" to e.g. "\[a-z]" for glob purposes! */
2390 for(li
= UIZ_MAX
, i
= sub
.l
; i
-- > 0;){
2393 if((c
= sub
.s
[i
]) == '/' || c
== '+' /* *folder*! */)
2395 /* Do stop once some "magic" characters are seen XXX magic set */
2396 else if(c
== '<' || c
== '>' || c
== '=' || c
== ':')
2408 /* A different case is that the user input includes for example character
2409 * classes: here fexpand() will go over glob, and that will not find any
2410 * match, thus returning NULL; try to wildcard expand this pattern! */
2412 if(sub
.s
[sub
.l
- 1] != '*'){
2414 shoup
= n_string_push_c(shoup
, '*');
2415 sub
.s
= n_string_cp(shoup
);
2416 sub
.l
= shoup
->s_len
;
2422 if(wedid
== TRUM1
&& preexp
.l
> 0)
2423 preexp
.s
= savestrbuf(preexp
.s
, preexp
.l
);
2425 /* May be multi-return! */
2426 if(n_pstate
& n_PS_EXPAND_MULTIRESULT
)
2429 /* xxx That is not really true since the limit counts characters not bytes */
2430 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
2431 if(exp
.l
>= a_TTY_LINE_MAX
- 1 || a_TTY_LINE_MAX
- 1 - exp
.l
< preexp
.l
){
2432 n_err(_("Tabulator expansion would extend beyond line size limit\n"));
2437 /* If the expansion equals the original string, assume the user wants what
2438 * is usually known as tab completion, append `*' and restart */
2439 if(!wedid
&& exp
.l
== sub
.l
&& !memcmp(exp
.s
, sub
.s
, exp
.l
))
2442 if(exp
.s
[exp
.l
- 1] != '/'){
2443 if(!stat(exp
.s
, &sb
) && S_ISDIR(sb
.st_mode
)){
2444 shoup
= n_string_assign_buf(shoup
, exp
.s
, exp
.l
);
2445 shoup
= n_string_push_c(shoup
, '/');
2446 exp
.s
= n_string_cp(shoup
);
2450 exp
.s
[exp
.l
] = '\0';
2453 exp
.l
= strlen(exp
.s
= n_shexp_quote_cp(exp
.s
, tlp
->tl_quote_rndtrip
));
2454 tlp
->tl_defc_cursor_byte
= bot
.l
+ preexp
.l
+ exp
.l
-1;
2456 orig
.l
= bot
.l
+ preexp
.l
+ exp
.l
+ topp
.l
;
2457 orig
.s
= n_autorec_alloc_from_pool(mempool_persist
, orig
.l
+ 5 +1);
2458 if((rv
= (ui32_t
)bot
.l
) > 0)
2459 memcpy(orig
.s
, bot
.s
, rv
);
2461 memcpy(&orig
.s
[rv
], preexp
.s
, preexp
.l
);
2464 memcpy(&orig
.s
[rv
], exp
.s
, exp
.l
);
2467 memcpy(&orig
.s
[rv
], topp
.s
, topp
.l
);
2472 tlp
->tl_defc
= orig
;
2473 tlp
->tl_count
= tlp
->tl_cursor
= 0;
2474 f
|= a_TTY_VF_MOD_DIRTY
;
2476 n_memory_pool_pop(mempool
);
2477 n_lofi_free(mempool
);
2478 tlp
->tl_vi_flags
|= f
;
2483 struct n_visual_info_ctx vic
;
2488 size_t locolen
, scrwid
, lnlen
, lncnt
, prefixlen
;
2491 if((fp
= Ftmp(NULL
, "tabex", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
2492 n_perr(_("tmpfile"), 0);
2496 /* How long is the result string for real? Search the NUL NUL
2497 * terminator. While here, detect the longest entry to perform an
2498 * initial allocation of our accumulator string */
2503 i
= strlen(&exp
.s
[++exp
.l
]);
2504 locolen
= n_MAX(locolen
, i
);
2506 }while(exp
.s
[exp
.l
+ 1] != '\0');
2508 shoup
= n_string_reserve(n_string_trunc(shoup
, 0),
2509 locolen
+ (locolen
>> 1));
2511 /* Iterate (once again) over all results */
2512 scrwid
= n_SCRNWIDTH_FOR_LISTS
;
2514 n_UNINIT(prefixlen
, 0);
2515 n_UNINIT(lococp
, NULL
);
2517 for(isfirst
= TRU1
; exp
.l
> 0; isfirst
= FAL0
, c1
= c2
){
2519 char const *fullpath
;
2523 sub
.l
= i
= strlen(sub
.s
);
2525 if((exp
.l
-= i
) > 0)
2529 /* Separate dirname and basename */
2534 if((cp
= strrchr(fullpath
, '/')) != NULL
)
2535 prefixlen
= PTR2SIZE(++cp
- fullpath
);
2539 if(prefixlen
> 0 && prefixlen
< sub
.l
){
2544 /* We want case-insensitive sort-order */
2545 memset(&vic
, 0, sizeof vic
);
2546 vic
.vic_indat
= sub
.s
;
2547 vic
.vic_inlen
= sub
.l
;
2548 c2
= n_visual_info(&vic
, n_VISUAL_INFO_ONE_CHAR
) ? vic
.vic_waccu
2550 #ifdef HAVE_C90AMEND1
2556 /* Query longest common prefix along the way */
2561 }else if(locolen
> 0){
2562 for(i
= 0; i
< locolen
; ++i
)
2563 if(lococp
[i
] != sub
.s
[i
]){
2564 i
= field_detect_clip(i
, lococp
, i
);
2570 /* Prepare display */
2572 shoup
= n_shexp_quote(n_string_trunc(shoup
, 0), &input
,
2573 tlp
->tl_quote_rndtrip
);
2574 memset(&vic
, 0, sizeof vic
);
2575 vic
.vic_indat
= shoup
->s_dat
;
2576 vic
.vic_inlen
= shoup
->s_len
;
2577 if(!n_visual_info(&vic
,
2578 n_VISUAL_INFO_SKIP_ERRORS
| n_VISUAL_INFO_WIDTH_QUERY
))
2579 vic
.vic_vi_width
= shoup
->s_len
;
2581 /* Put on screen. Indent follow lines of same sort slot.
2582 * Leave enough room for filename tagging */
2583 if((c1
= (c1
!= c2
))){
2584 #ifdef HAVE_C90AMEND1
2585 c1
= (iswalnum(c2
) != 0);
2587 c1
= (alnumchar(c2
) != 0);
2591 scrwid
< lnlen
|| scrwid
- lnlen
<= vic
.vic_vi_width
+ 2){
2598 }else if(lnlen
> 0){
2603 fputs(n_string_cp(shoup
), fp
);
2604 lnlen
+= vic
.vic_vi_width
;
2606 /* Support the known filename tagging
2607 * XXX *line-editor-completion-filetype* or so */
2608 if(!lstat(fullpath
, &sb
)){
2611 if(S_ISDIR(sb
.st_mode
))
2613 else if(S_ISLNK(sb
.st_mode
))
2616 else if(S_ISFIFO(sb
.st_mode
))
2620 else if(S_ISSOCK(sb
.st_mode
))
2624 else if(S_ISCHR(sb
.st_mode
))
2628 else if(S_ISBLK(sb
.st_mode
))
2641 page_or_print(fp
, lncnt
);
2645 n_string_gut(shoup
);
2647 /* A common prefix of 0 means we cannot provide the user any auto
2648 * completed characters for the multiple possible results.
2649 * Otherwise we can, so extend the visual line content by the common
2650 * prefix (in a reversible way) */
2651 f
|= a_TTY_VF_BELL
; /* XXX -> *line-editor-completion-bell*? or so */
2653 (exp
.s
= n_UNCONST(lococp
))[locolen
] = '\0';
2655 exp
.l
= (locolen
+= prefixlen
);
2661 /* If we've provided a default content, but failed to expand, there is
2662 * nothing we can "revert to": drop that default again */
2664 tlp
->tl_savec
.s
= NULL
;
2665 tlp
->tl_savec
.l
= 0;
2667 f
&= a_TTY_VF_BELL
; /* XXX -> *line-editor-completion-bell*? or so */
2672 # ifdef HAVE_HISTORY
2674 a_tty__khist_shared(struct a_tty_line
*tlp
, struct a_tty_hist
*thp
){
2678 if(n_LIKELY((tlp
->tl_hist
= thp
) != NULL
)){
2683 if(tlp
->tl_goinflags
& n_GO_INPUT_CTX_COMPOSE
){
2685 if(!(thp
->th_flags
& a_TTY_HIST_CTX_COMPOSE
))
2688 tlp
->tl_defc
.s
= cp
= n_autorec_alloc(i
+1);
2689 if(tlp
->tl_goinflags
& n_GO_INPUT_CTX_COMPOSE
){
2690 if((*cp
= ok_vlook(escape
)[0]) == '\0')
2693 if(!(thp
->th_flags
& a_TTY_HIST_CTX_COMPOSE
))
2696 memcpy(cp
, thp
->th_dat
, thp
->th_len
+1);
2697 rv
= tlp
->tl_defc
.l
= i
;
2699 f
= (tlp
->tl_count
> 0) ? a_TTY_VF_MOD_DIRTY
: a_TTY_VF_NONE
;
2700 tlp
->tl_count
= tlp
->tl_cursor
= 0;
2706 tlp
->tl_vi_flags
|= f
;
2712 a_tty_khist(struct a_tty_line
*tlp
, bool_t fwd
){
2713 struct a_tty_hist
*thp
;
2717 /* If we're not in history mode yet, save line content */
2718 if((thp
= tlp
->tl_hist
) == NULL
){
2719 a_tty_cell2save(tlp
);
2720 if((thp
= a_tty
.tg_hist
) == NULL
)
2723 while(thp
->th_older
!= NULL
)
2724 thp
= thp
->th_older
;
2728 while((thp
= fwd
? thp
->th_younger
: thp
->th_older
) != NULL
){
2729 /* Applicable to input context? Compose mode swallows anything */
2730 if((tlp
->tl_goinflags
& n__GO_INPUT_CTX_MASK
) == n_GO_INPUT_CTX_COMPOSE
)
2732 if((thp
->th_flags
& a_TTY_HIST_CTX_MASK
) != a_TTY_HIST_CTX_COMPOSE
)
2736 rv
= a_tty__khist_shared(tlp
, thp
);
2742 a_tty_khist_search(struct a_tty_line
*tlp
, bool_t fwd
){
2743 struct str orig_savec
;
2745 struct a_tty_hist
*thp
;
2750 /* We cannot complete an empty line */
2751 if(n_UNLIKELY(tlp
->tl_count
== 0)){
2752 /* XXX The upcoming hard reset would restore a set savec buffer,
2753 * XXX so forcefully reset that. A cleaner solution would be to
2754 * XXX reset it whenever a restore is no longer desired */
2755 tlp
->tl_savec
.s
= NULL
;
2756 tlp
->tl_savec
.l
= 0;
2760 /* xxx It is a bit of a hack, but let's just hard-code the knowledge that
2761 * xxx in compose mode the first character is *escape* and must be skipped
2762 * xxx when searching the history. Alternatively we would need to have
2763 * xxx context-specific history search hooks which would do the search,
2764 * xxx which is overkill for our sole special case compose mode */
2765 if((tlp
->tl_goinflags
& n__GO_INPUT_CTX_MASK
) == n_GO_INPUT_CTX_COMPOSE
)
2770 if((thp
= tlp
->tl_hist
) == NULL
){
2771 a_tty_cell2save(tlp
);
2772 if((thp
= a_tty
.tg_hist
) == NULL
) /* TODO Should end "doing nothing"! */
2775 while(thp
->th_older
!= NULL
)
2776 thp
= thp
->th_older
;
2777 orig_savec
.s
= NULL
;
2778 orig_savec
.l
= 0; /* silence CC */
2780 while((thp
= fwd
? thp
->th_younger
: thp
->th_older
) != NULL
){
2781 /* Applicable to input context? Compose mode swallows anything */
2784 if((thp
->th_flags
& a_TTY_HIST_CTX_MASK
) != a_TTY_HIST_CTX_COMPOSE
)
2790 orig_savec
= tlp
->tl_savec
;
2793 if(xoff
>= tlp
->tl_savec
.l
){
2798 if(orig_savec
.s
== NULL
)
2799 a_tty_cell2save(tlp
);
2801 for(; thp
!= NULL
; thp
= fwd
? thp
->th_younger
: thp
->th_older
){
2802 /* Applicable to input context? Compose mode swallows anything */
2803 if(xoff
!= 1 && (thp
->th_flags
& a_TTY_HIST_CTX_MASK
) ==
2804 a_TTY_HIST_CTX_COMPOSE
)
2806 if(is_prefix(&tlp
->tl_savec
.s
[xoff
], thp
->th_dat
))
2810 if(orig_savec
.s
!= NULL
)
2811 tlp
->tl_savec
= orig_savec
;
2813 rv
= a_tty__khist_shared(tlp
, thp
);
2817 # endif /* HAVE_HISTORY */
2819 static enum a_tty_fun_status
2820 a_tty_fun(struct a_tty_line
*tlp
, enum a_tty_bind_flags tbf
, size_t *len
){
2821 enum a_tty_fun_status rv
;
2824 rv
= a_TTY_FUN_STATUS_OK
;
2826 # define a_X(N) a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## N)
2827 switch(a_TTY_BIND_FUN_REDUCE(tbf
)){
2829 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2837 case a_X(GO_WORD_BWD
):
2838 a_tty_kgow(tlp
, -1);
2840 case a_X(GO_WORD_FWD
):
2841 a_tty_kgow(tlp
, +1);
2843 case a_X(GO_SCREEN_BWD
):
2844 a_tty_kgoscr(tlp
, -1);
2846 case a_X(GO_SCREEN_FWD
):
2847 a_tty_kgoscr(tlp
, +1);
2850 a_tty_khome(tlp
, TRU1
);
2859 if(a_tty_kdel(tlp
) < 0)
2860 rv
= a_TTY_FUN_STATUS_END
;
2862 case a_X(SNARF_WORD_BWD
):
2863 a_tty_ksnarfw(tlp
, FAL0
);
2865 case a_X(SNARF_WORD_FWD
):
2866 a_tty_ksnarfw(tlp
, TRU1
);
2868 case a_X(SNARF_END
):
2869 a_tty_ksnarf(tlp
, FAL0
, TRU1
);
2871 case a_X(SNARF_LINE
):
2872 a_tty_ksnarf(tlp
, TRU1
, (tlp
->tl_count
== 0));
2875 case a_X(HIST_FWD
):{
2876 # ifdef HAVE_HISTORY
2877 bool_t isfwd
= TRU1
;
2883 # ifdef HAVE_HISTORY
2886 if((*len
= a_tty_khist(tlp
, isfwd
)) != UI32_MAX
){
2887 rv
= a_TTY_FUN_STATUS_RESTART
;
2893 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2896 case a_X(HIST_SRCH_FWD
):{
2897 # ifdef HAVE_HISTORY
2898 bool_t isfwd
= TRU1
;
2903 case a_X(HIST_SRCH_BWD
):
2904 # ifdef HAVE_HISTORY
2907 if((*len
= a_tty_khist_search(tlp
, isfwd
)) != UI32_MAX
){
2908 rv
= a_TTY_FUN_STATUS_RESTART
;
2913 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2918 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
2920 case a_X(QUOTE_RNDTRIP
):
2921 tlp
->tl_quote_rndtrip
= !tlp
->tl_quote_rndtrip
;
2923 case a_X(PROMPT_CHAR
):{
2926 if((wc
= a_tty_vinuni(tlp
)) > 0)
2927 a_tty_kother(tlp
, wc
);
2930 if((*len
= a_tty_kht(tlp
)) > 0)
2931 rv
= a_TTY_FUN_STATUS_RESTART
;
2935 if(tlp
->tl_pastebuf
.l
> 0)
2936 *len
= (tlp
->tl_defc
= tlp
->tl_pastebuf
).l
;
2938 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2941 case a_X(CLEAR_SCREEN
):
2942 tlp
->tl_vi_flags
|= (n_termcap_cmdx(n_TERMCAP_CMD_cl
) == TRU1
)
2943 ? a_TTY_VF_MOD_DIRTY
: a_TTY_VF_BELL
;
2947 /* Normally this just causes a restart and thus resets the state
2949 if(tlp
->tl_savec
.l
== 0 && tlp
->tl_defc
.l
== 0){
2951 # ifdef HAVE_KEY_BINDINGS
2952 tlp
->tl_bind_takeover
= '\0';
2954 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2955 rv
= a_TTY_FUN_STATUS_RESTART
;
2959 if(tlp
->tl_count
== 0 && tlp
->tl_savec
.l
== 0 && tlp
->tl_defc
.l
== 0){
2960 # ifdef HAVE_KEY_BINDINGS
2961 tlp
->tl_bind_takeover
= '\0';
2963 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
| a_TTY_VF_BELL
;
2966 case a_X(FULLRESET
):
2967 tlp
->tl_savec
.s
= tlp
->tl_defc
.s
= NULL
;
2968 tlp
->tl_savec
.l
= tlp
->tl_defc
.l
= 0;
2969 tlp
->tl_defc_cursor_byte
= 0;
2970 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2973 # ifdef HAVE_KEY_BINDINGS
2974 tlp
->tl_bind_takeover
= '\0';
2976 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
2977 tlp
->tl_cursor
= tlp
->tl_count
= 0;
2978 # ifdef HAVE_HISTORY
2979 tlp
->tl_hist
= NULL
;
2981 if((*len
= tlp
->tl_savec
.l
) != 0){
2982 tlp
->tl_defc
= tlp
->tl_savec
;
2983 tlp
->tl_savec
.s
= NULL
;
2984 tlp
->tl_savec
.l
= 0;
2986 *len
= tlp
->tl_defc
.l
;
2987 rv
= a_TTY_FUN_STATUS_RESTART
;
2992 rv
= a_TTY_FUN_STATUS_COMMIT
;
3002 a_tty_readline(struct a_tty_line
*tlp
, size_t len
, bool_t
*histok_or_null
3003 n_MEMORY_DEBUG_ARGS
){
3004 /* We want to save code, yet we may have to incorporate a lines'
3005 * default content and / or default input to switch back to after some
3006 * history movement; let "len > 0" mean "have to display some data
3007 * buffer" -> a_BUFMODE, and only otherwise read(2) it */
3009 char cbuf_base
[MB_LEN_MAX
* 2], *cbuf
, *cbufp
;
3011 struct a_tty_bind_tree
*tbtp
;
3013 enum a_tty_bind_flags tbf
;
3014 enum {a_NONE
, a_WAS_HERE
= 1<<0, a_BUFMODE
= 1<<1, a_MAYBEFUN
= 1<<2,
3015 a_TIMEOUT
= 1<<3, a_TIMEOUT_EXPIRED
= 1<<4,
3016 a_TIMEOUT_MASK
= a_TIMEOUT
| a_TIMEOUT_EXPIRED
,
3017 a_READ_LOOP_MASK
= ~(a_WAS_HERE
| a_MAYBEFUN
| a_TIMEOUT_MASK
)
3022 # ifdef HAVE_KEY_BINDINGS
3023 assert(tlp
->tl_bind_takeover
== '\0');
3026 memset(ps
, 0, sizeof ps
);
3028 tlp
->tl_vi_flags
|= a_TTY_VF_REFRESH
| a_TTY_VF_SYNC
;
3035 /* Ensure we have valid pointers, and room for grow */
3036 a_tty_check_grow(tlp
, ((flags
& a_BUFMODE
) ? (ui32_t
)len
: 1)
3037 n_MEMORY_DEBUG_ARGSCALL
);
3039 /* Handle visual state flags, except in buffer mode */
3040 if(!(flags
& a_BUFMODE
) && (tlp
->tl_vi_flags
& a_TTY_VF_ALL_MASK
))
3041 if(!a_tty_vi_refresh(tlp
)){
3046 /* Ready for messing around.
3047 * Normal read(2)? Else buffer mode: speed this one up */
3048 if(!(flags
& a_BUFMODE
)){
3052 assert(tlp
->tl_defc
.l
> 0 && tlp
->tl_defc
.s
!= NULL
);
3053 assert(tlp
->tl_defc
.l
>= len
);
3055 cbuf
= tlp
->tl_defc
.s
+ (tlp
->tl_defc
.l
- len
);
3059 /* Read in the next complete multibyte character */
3061 # ifdef HAVE_KEY_BINDINGS
3062 struct a_tty_bind_tree
*xtbtp
;
3066 struct a_tty_bind_tree
*tbtp
;
3069 isp_head
= isp
= NULL
;
3072 for(flags
&= a_READ_LOOP_MASK
;;){
3073 # ifdef HAVE_KEY_BINDINGS
3074 if(!(flags
& a_BUFMODE
) && tlp
->tl_bind_takeover
!= '\0'){
3075 wc
= tlp
->tl_bind_takeover
;
3076 tlp
->tl_bind_takeover
= '\0';
3080 if(!(flags
& a_BUFMODE
)){
3081 /* Let me at least once dream of iomon(itor), timer with
3082 * one-shot, enwrapped with key_event and key_sequence_event,
3083 * all driven by an event_loop */
3084 /* TODO v15 Until we have SysV signal handling all through we
3085 * TODO need to temporarily adjust our BSD signal handler with
3086 * TODO a SysV one, here */
3087 n_sighdl_t otstp
, ottin
, ottou
;
3089 otstp
= n_signal(SIGTSTP
, &a_tty_signal
);
3090 ottin
= n_signal(SIGTTIN
, &a_tty_signal
);
3091 ottou
= n_signal(SIGTTOU
, &a_tty_signal
);
3092 # ifdef HAVE_KEY_BINDINGS
3093 flags
&= ~a_TIMEOUT_MASK
;
3094 if(isp
!= NULL
&& (tbtp
= isp
->tbtp
)->tbt_isseq
&&
3095 !tbtp
->tbt_isseq_trail
){
3096 a_tty_term_rawmode_timeout(tlp
, TRU1
);
3101 while((rv
= read(STDIN_FILENO
, cbufp
, 1)) < 1){
3103 if(n_err_no
== n_ERR_INTR
){
3104 if((tlp
->tl_vi_flags
& a_TTY_VF_MOD_DIRTY
) &&
3105 !a_tty_vi_refresh(tlp
))
3112 # ifdef HAVE_KEY_BINDINGS
3113 /* Timeout expiration */
3115 assert(flags
& a_TIMEOUT
);
3116 assert(isp
!= NULL
);
3117 a_tty_term_rawmode_timeout(tlp
, FAL0
);
3119 /* Something "atomic" broke. Maybe the current one can
3120 * also be terminated already, by itself? xxx really? */
3121 if((tbtp
= isp
->tbtp
)->tbt_bind
!= NULL
){
3122 tlp
->tl_bind_takeover
= wc
;
3126 /* Or, maybe there is a second path without a timeout;
3127 * this should be covered by .tbt_isseq_trail, but then
3128 * again a single-layer implementation cannot "know" */
3129 for(xtbtp
= tbtp
; (xtbtp
= xtbtp
->tbt_sibling
) != NULL
;)
3130 if(xtbtp
->tbt_char
== tbtp
->tbt_char
){
3131 assert(!xtbtp
->tbt_isseq
);
3134 /* Lay down on read(2)? */
3139 # endif /* HAVE_KEY_BINDINGS */
3142 # ifdef HAVE_KEY_BINDINGS
3143 if(flags
& a_TIMEOUT
)
3144 a_tty_term_rawmode_timeout(tlp
, FAL0
);
3146 safe_signal(SIGTSTP
, otstp
);
3147 safe_signal(SIGTTIN
, ottin
);
3148 safe_signal(SIGTTOU
, ottou
);
3155 rv
= (ssize_t
)mbrtowc(&wc
, cbuf
, PTR2SIZE(cbufp
- cbuf
), &ps
[0]);
3157 /* Any error during buffer mode can only result in a hard
3158 * reset; Otherwise, if it's a hard error, or if too many
3159 * redundant shift sequences overflow our buffer: perform
3161 if((flags
& a_BUFMODE
) || rv
== -1 ||
3162 sizeof cbuf_base
== PTR2SIZE(cbufp
- cbuf
)){
3163 a_tty_fun(tlp
, a_TTY_BIND_FUN_FULLRESET
, &len
);
3166 /* Otherwise, due to the way we deal with the buffer, we need
3167 * to restore the mbstate_t from before this conversion */
3175 /* Normal read(2)ing is subject to detection of key-bindings */
3176 # ifdef HAVE_KEY_BINDINGS
3177 if(!(flags
& a_BUFMODE
)){
3178 /* Check for special bypass functions before we try to embed
3179 * this character into the tree */
3180 if(n_uasciichar(wc
)){
3184 for(c
= (char)wc
, cp
= &(*tlp
->tl_bind_shcut_prompt_char
)[0];
3187 wc
= a_tty_vinuni(tlp
);
3192 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
3196 if(n_uasciichar(wc
))
3197 flags
|= a_MAYBEFUN
;
3199 flags
&= ~a_MAYBEFUN
;
3201 /* Search for this character in the bind tree */
3202 tbtp
= (isp
!= NULL
) ? isp
->tbtp
->tbt_childs
3203 : (*tlp
->tl_bind_tree_hmap
)[wc
% HSHSIZE
];
3204 for(; tbtp
!= NULL
; tbtp
= tbtp
->tbt_sibling
){
3205 if(tbtp
->tbt_char
== wc
){
3208 /* If this one cannot continue we're likely finished! */
3209 if(tbtp
->tbt_childs
== NULL
){
3210 assert(tbtp
->tbt_bind
!= NULL
);
3211 tbf
= tbtp
->tbt_bind
->tbc_flags
;
3215 /* This needs to read more characters */
3216 nisp
= n_autorec_alloc(sizeof *nisp
);
3217 if((nisp
->last
= isp
) == NULL
)
3224 flags
&= ~a_WAS_HERE
;
3231 /* Was there a binding active, but couldn't be continued? */
3233 /* A binding had a timeout, it didn't expire, but we saw
3234 * something non-expected. Something "atomic" broke.
3235 * Maybe there is a second path without a timeout, that
3236 * continues like we've seen it. I.e., it may just have been
3237 * the user, typing too fast. We definitely want to allow
3238 * bindings like \e,d etc. to succeed: users are so used to
3239 * them that a timeout cannot be the mechanism to catch up!
3240 * A single-layer implementation cannot "know" */
3241 if((tbtp
= isp
->tbtp
)->tbt_isseq
&& (isp
->last
== NULL
||
3242 !(xtbtp
= isp
->last
->tbtp
)->tbt_isseq
||
3243 xtbtp
->tbt_isseq_trail
)){
3244 for(xtbtp
= (tbtp
= isp
->tbtp
);
3245 (xtbtp
= xtbtp
->tbt_sibling
) != NULL
;)
3246 if(xtbtp
->tbt_char
== tbtp
->tbt_char
){
3247 assert(!xtbtp
->tbt_isseq
);
3252 tlp
->tl_bind_takeover
= wc
;
3257 /* Check for CANCEL shortcut now */
3258 if(flags
& a_MAYBEFUN
){
3262 for(c
= (char)wc
, cp
= &(*tlp
->tl_bind_shcut_cancel
)[0];
3265 tbf
= a_TTY_BIND_FUN_INTERNAL
|a_TTY_BIND_FUN_CANCEL
;
3270 /* So: maybe the current sequence can be terminated here? */
3271 if((tbtp
= isp
->tbtp
)->tbt_bind
!= NULL
){
3273 tbf
= tbtp
->tbt_bind
->tbc_flags
;
3275 if(tbf
& a_TTY_BIND_FUN_INTERNAL
){
3276 switch(a_tty_fun(tlp
, tbf
, &len
)){
3277 case a_TTY_FUN_STATUS_OK
:
3279 case a_TTY_FUN_STATUS_COMMIT
:
3281 case a_TTY_FUN_STATUS_RESTART
:
3283 case a_TTY_FUN_STATUS_END
:
3288 }else if(tbtp
->tbt_bind
->tbc_flags
& a_TTY_BIND_NOCOMMIT
){
3289 struct a_tty_bind_ctx
*tbcp
;
3291 tbcp
= tbtp
->tbt_bind
;
3292 memcpy(tlp
->tl_defc
.s
= n_autorec_alloc(
3293 (tlp
->tl_defc
.l
= len
= tbcp
->tbc_exp_len
) +1),
3294 tbcp
->tbc_exp
, tbcp
->tbc_exp_len
+1);
3297 cbufp
= tbtp
->tbt_bind
->tbc_exp
;
3303 /* Otherwise take over all chars "as is" */
3305 for(; isp_head
!= NULL
; isp_head
= isp_head
->next
)
3306 if(a_tty_kother(tlp
, isp_head
->tbtp
->tbt_char
)){
3309 /* And the current one too */
3312 # endif /* HAVE_KEY_BINDINGS */
3314 if((flags
& a_BUFMODE
) && (len
-= (size_t)rv
) == 0){
3315 /* Buffer mode completed */
3316 tlp
->tl_defc
.s
= NULL
;
3318 flags
&= ~a_BUFMODE
;
3323 # ifndef HAVE_KEY_BINDINGS
3324 /* Don't interpret control bytes during buffer mode.
3325 * Otherwise, if it's a control byte check whether it is a MLE
3326 * function. Remarks: initially a complete duplicate to be able to
3327 * switch(), later converted to simply iterate over (an #ifdef'd
3328 * subset of) the MLE base_tuple table in order to have "a SPOF" */
3329 if(cbuf
== cbuf_base
&& n_uasciichar(wc
) && cntrlchar((char)wc
)){
3330 struct a_tty_bind_builtin_tuple
const *tbbtp
, *tbbtp_max
;
3333 c
= (char)wc
^ 0x40;
3334 tbbtp
= a_tty_bind_base_tuples
;
3335 tbbtp_max
= &tbbtp
[n_NELEM(a_tty_bind_base_tuples
)];
3337 for(; tbbtp
< tbbtp_max
; ++tbbtp
){
3338 /* Assert default_tuple table is properly subset'ed */
3339 assert(tbbtp
->tbdt_iskey
);
3340 if(tbbtp
->tbbt_ckey
== c
){
3341 if(tbbtp
->tbbt_exp
[0] == '\0'){
3342 tbf
= a_TTY_BIND_FUN_EXPAND((ui8_t
)tbbtp
->tbbt_exp
[1]);
3343 switch(a_tty_fun(tlp
, tbf
, &len
)){
3344 case a_TTY_FUN_STATUS_OK
:
3346 case a_TTY_FUN_STATUS_COMMIT
:
3348 case a_TTY_FUN_STATUS_RESTART
:
3350 case a_TTY_FUN_STATUS_END
:
3356 cbufp
= tbbtp
->tbbt_exp
;
3362 &a_tty_bind_base_tuples
[n_NELEM(a_tty_bind_base_tuples
)]){
3363 tbbtp
= a_tty_bind_default_tuples
;
3364 tbbtp_max
= &tbbtp
[n_NELEM(a_tty_bind_default_tuples
)];
3368 # endif /* !HAVE_KEY_BINDINGS */
3370 # ifdef HAVE_KEY_BINDINGS
3373 if(a_tty_kother(tlp
, wc
)){
3374 /* Don't clear the history during buffer mode.. */
3375 # ifdef HAVE_HISTORY
3376 if(!(flags
& a_BUFMODE
) && cbuf
== cbuf_base
)
3377 tlp
->tl_hist
= NULL
;
3383 /* We have a completed input line, convert the struct cell data to its
3384 * plain character equivalent */
3386 rv
= a_tty_cell2dat(tlp
);
3388 putc('\n', n_tty_fp
);
3396 hold_all_sigs(); /* XXX v15 drop */
3397 i
= a_tty_cell2dat(tlp
);
3398 n_go_input_inject(n_GO_INPUT_INJECT_NONE
, tlp
->tl_line
.cbuf
, i
);
3399 i
= strlen(cbufp
) +1;
3400 if(i
>= *tlp
->tl_x_bufsize
){
3401 *tlp
->tl_x_buf
= (n_realloc
)(*tlp
->tl_x_buf
, i n_MEMORY_DEBUG_ARGSCALL
);
3402 *tlp
->tl_x_bufsize
= i
;
3404 memcpy(*tlp
->tl_x_buf
, cbufp
, i
);
3405 rele_all_sigs(); /* XXX v15 drop */
3406 if(histok_or_null
!= NULL
)
3407 *histok_or_null
= FAL0
;
3413 # ifdef HAVE_KEY_BINDINGS
3414 static enum n_go_input_flags
3415 a_tty_bind_ctx_find(char const *name
){
3416 enum n_go_input_flags rv
;
3417 struct a_tty_bind_ctx_map
const *tbcmp
;
3420 tbcmp
= a_tty_bind_ctx_maps
;
3421 do if(!asccasecmp(tbcmp
->tbcm_name
, name
)){
3422 rv
= tbcmp
->tbcm_ctx
;
3424 }while(PTRCMP(++tbcmp
, <,
3425 &a_tty_bind_ctx_maps
[n_NELEM(a_tty_bind_ctx_maps
)]));
3427 rv
= (enum n_go_input_flags
)-1;
3434 a_tty_bind_create(struct a_tty_bind_parse_ctx
*tbpcp
, bool_t replace
){
3435 struct a_tty_bind_ctx
*tbcp
;
3441 if(!a_tty_bind_parse(TRU1
, tbpcp
))
3444 /* Since we use a single buffer for it all, need to replace as such */
3445 if(tbpcp
->tbpc_tbcp
!= NULL
){
3448 a_tty_bind_del(tbpcp
);
3449 }else if(a_tty
.tg_bind_cnt
== UI32_MAX
){
3450 n_err(_("`bind': maximum number of bindings already established\n"));
3457 tbcp
= n_alloc(n_VSTRUCT_SIZEOF(struct a_tty_bind_ctx
, tbc__buf
) +
3458 tbpcp
->tbpc_seq_len
+ tbpcp
->tbpc_exp
.l
+
3459 n_MAX(sizeof(si32_t
), sizeof(wc_t
)) + tbpcp
->tbpc_cnv_len
+3);
3460 if(tbpcp
->tbpc_ltbcp
!= NULL
){
3461 tbcp
->tbc_next
= tbpcp
->tbpc_ltbcp
->tbc_next
;
3462 tbpcp
->tbpc_ltbcp
->tbc_next
= tbcp
;
3464 enum n_go_input_flags gif
;
3466 gif
= tbpcp
->tbpc_flags
& n__GO_INPUT_CTX_MASK
;
3467 tbcp
->tbc_next
= a_tty
.tg_bind
[gif
];
3468 a_tty
.tg_bind
[gif
] = tbcp
;
3470 memcpy(tbcp
->tbc_seq
= &tbcp
->tbc__buf
[0],
3471 tbpcp
->tbpc_seq
, i
= (tbcp
->tbc_seq_len
= tbpcp
->tbpc_seq_len
) +1);
3472 memcpy(tbcp
->tbc_exp
= &tbcp
->tbc__buf
[i
],
3473 tbpcp
->tbpc_exp
.s
, j
= (tbcp
->tbc_exp_len
= tbpcp
->tbpc_exp
.l
) +1);
3475 i
= (i
+ tbpcp
->tbpc_cnv_align_mask
) & ~tbpcp
->tbpc_cnv_align_mask
;
3476 memcpy(tbcp
->tbc_cnv
= &tbcp
->tbc__buf
[i
],
3477 tbpcp
->tbpc_cnv
, (tbcp
->tbc_cnv_len
= tbpcp
->tbpc_cnv_len
) +1);
3478 tbcp
->tbc_flags
= tbpcp
->tbpc_flags
;
3481 /* Directly resolve any termcap(5) symbol if we are already setup */
3482 if((n_psonce
& n_PSO_STARTED
) &&
3483 (tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)) ==
3485 a_tty_bind_resolve(tbcp
);
3487 ++a_tty
.tg_bind_cnt
;
3488 /* If this binding is usable invalidate the key input lookup trees */
3489 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
3490 a_tty
.tg_bind_isdirty
= TRU1
;
3498 a_tty_bind_parse(bool_t isbindcmd
, struct a_tty_bind_parse_ctx
*tbpcp
){
3499 enum{a_TRUE_RV
= a_TTY__BIND_LAST
<<1};
3501 struct n_visual_info_ctx vic
;
3502 struct str shin_save
, shin
;
3503 struct n_string shou
, *shoup
;
3510 ui32_t cnv_len
; /* High bit set if a termap to be resolved */
3511 ui32_t calc_cnv_len
; /* Ditto, but aligned etc. */
3512 ui8_t kse__dummy
[4];
3516 n_LCTA(UICMP(64, a_TRUE_RV
, <, UI32_MAX
),
3517 "Flag bits excess storage datatype");
3519 f
= n_GO_INPUT_NONE
;
3520 shoup
= n_string_creat_auto(&shou
);
3523 /* Parse the key-sequence */
3524 for(shin
.s
= n_UNCONST(tbpcp
->tbpc_in_seq
), shin
.l
= UIZ_MAX
;;){
3526 enum n_shexp_state shs
;
3529 shs
= n_shexp_parse_token((n_SHEXP_PARSE_TRUNC
|
3530 n_SHEXP_PARSE_TRIM_SPACE
| n_SHEXP_PARSE_IGNORE_EMPTY
|
3531 n_SHEXP_PARSE_IFS_IS_COMMA
), shoup
, &shin
, NULL
);
3532 if(shs
& n_SHEXP_STATE_ERR_UNICODE
){
3533 f
|= a_TTY_BIND_DEFUNCT
;
3534 if(isbindcmd
&& (n_poption
& n_PO_D_V
))
3535 n_err(_("`%s': \\uNICODE not available in locale: %s\n"),
3536 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3538 if((shs
& n_SHEXP_STATE_ERR_MASK
) & ~n_SHEXP_STATE_ERR_UNICODE
){
3539 n_err(_("`%s': failed to parse key-sequence: %s\n"),
3540 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3543 if((shs
& (n_SHEXP_STATE_OUTPUT
| n_SHEXP_STATE_STOP
)) ==
3547 ep
= n_autorec_alloc(sizeof *ep
);
3554 if(!(shs
& n_SHEXP_STATE_ERR_UNICODE
)){
3555 i
= strlen(ep
->seq_dat
= n_shexp_quote_cp(n_string_cp(shoup
), TRU1
));
3556 if(i
>= SI32_MAX
- 1)
3558 ep
->seq_len
= (ui32_t
)i
;
3560 /* Otherwise use the original buffer, _we_ can only quote it the wrong
3561 * way (e.g., an initial $'\u3a' becomes '\u3a'), _then_ */
3562 if((i
= shin_save
.l
- shin
.l
) >= SI32_MAX
- 1)
3564 ep
->seq_len
= (ui32_t
)i
;
3565 ep
->seq_dat
= savestrbuf(shin_save
.s
, i
);
3568 memset(&vic
, 0, sizeof vic
);
3569 vic
.vic_inlen
= shoup
->s_len
;
3570 vic
.vic_indat
= shoup
->s_dat
;
3571 if(!n_visual_info(&vic
,
3572 n_VISUAL_INFO_WOUT_CREATE
| n_VISUAL_INFO_WOUT_SALLOC
)){
3573 n_err(_("`%s': key-sequence seems to contain invalid "
3574 "characters: %s: %s\n"),
3575 tbpcp
->tbpc_cmd
, n_string_cp(shoup
), tbpcp
->tbpc_in_seq
);
3576 f
|= a_TTY_BIND_DEFUNCT
;
3578 }else if(vic
.vic_woulen
== 0 ||
3579 vic
.vic_woulen
>= (SI32_MAX
- 2) / sizeof(wc_t
)){
3581 n_err(_("`%s': length of key-sequence unsupported: %s: %s\n"),
3582 tbpcp
->tbpc_cmd
, n_string_cp(shoup
), tbpcp
->tbpc_in_seq
);
3583 f
|= a_TTY_BIND_DEFUNCT
;
3586 ep
->cnv_dat
= vic
.vic_woudat
;
3587 ep
->cnv_len
= (ui32_t
)vic
.vic_woulen
;
3589 /* A termcap(5)/terminfo(5) identifier? */
3590 if(ep
->cnv_len
> 1 && ep
->cnv_dat
[0] == ':'){
3591 i
= --ep
->cnv_len
, ++ep
->cnv_dat
;
3592 # if 0 /* ndef HAVE_TERMCAP xxx User can, via *termcap*! */
3593 if(n_poption
& n_PO_D_V
)
3594 n_err(_("`%s': no termcap(5)/terminfo(5) support: %s: %s\n"),
3595 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
3596 f
|= a_TTY_BIND_DEFUNCT
;
3598 if(i
> a_TTY_BIND_CAPNAME_MAX
){
3599 n_err(_("`%s': termcap(5)/terminfo(5) name too long: %s: %s\n"),
3600 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
3601 f
|= a_TTY_BIND_DEFUNCT
;
3604 /* (We store it as char[]) */
3605 if((ui32_t
)ep
->cnv_dat
[--i
] & ~0x7Fu
){
3606 n_err(_("`%s': invalid termcap(5)/terminfo(5) name content: "
3608 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
3609 f
|= a_TTY_BIND_DEFUNCT
;
3612 ep
->cnv_len
|= SI32_MIN
; /* Needs resolve */
3613 f
|= a_TTY_BIND_RESOLVE
;
3616 if(shs
& n_SHEXP_STATE_STOP
)
3622 n_err(_("`%s': effectively empty key-sequence: %s\n"),
3623 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3627 if(isbindcmd
) /* (Or always, just "1st time init") */
3628 tbpcp
->tbpc_cnv_align_mask
= n_MAX(sizeof(si32_t
), sizeof(wc_t
)) - 1;
3631 struct a_tty_bind_ctx
*ltbcp
, *tbcp
;
3632 char *cpbase
, *cp
, *cnv
;
3635 /* Unite the parsed sequence(s) into single string representations */
3636 for(sl
= cl
= 0, tail
= head
; tail
!= NULL
; tail
= tail
->next
){
3637 sl
+= tail
->seq_len
+ 1;
3642 /* Preserve room for terminal capabilities to be resolved.
3643 * Above we have ensured the buffer will fit in these calculations */
3644 if((i
= tail
->cnv_len
) & SI32_MIN
){
3646 * struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[]+NUL;}
3648 * struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;} */
3649 n_LCTAV(n_ISPOW2(a_TTY_BIND_CAPEXP_ROUNDUP
));
3650 n_LCTA(a_TTY_BIND_CAPEXP_ROUNDUP
>= sizeof(wc_t
),
3651 "Aligning on this constant does not properly align wc_t");
3654 i
+= sizeof(si32_t
);
3655 if(i
< a_TTY_BIND_CAPEXP_ROUNDUP
)
3656 i
= (i
+ (a_TTY_BIND_CAPEXP_ROUNDUP
- 1)) &
3657 ~(a_TTY_BIND_CAPEXP_ROUNDUP
- 1);
3659 /* struct{si32_t buf_len_iscap; wc_t buf[]+NUL;} */
3661 i
+= sizeof(si32_t
) + sizeof(wc_t
); /* (buf_len_iscap, NUL) */
3663 if(tail
->cnv_len
& SI32_MIN
){
3664 tail
->cnv_len
&= SI32_MAX
;
3667 tail
->calc_cnv_len
= (ui32_t
)i
;
3671 tbpcp
->tbpc_seq_len
= sl
;
3672 tbpcp
->tbpc_cnv_len
= cl
;
3676 j
= i
= sl
+ 1; /* Room for comma separator */
3678 i
= (i
+ tbpcp
->tbpc_cnv_align_mask
) & ~tbpcp
->tbpc_cnv_align_mask
;
3682 tbpcp
->tbpc_seq
= cp
= cpbase
= n_autorec_alloc(i
);
3683 tbpcp
->tbpc_cnv
= cnv
= &cpbase
[j
];
3686 for(tail
= head
; tail
!= NULL
; tail
= tail
->next
){
3687 memcpy(cp
, tail
->seq_dat
, tail
->seq_len
);
3688 cp
+= tail
->seq_len
;
3692 char * const save_cnv
= cnv
;
3694 n_UNALIGN(si32_t
*,cnv
)[0] = (si32_t
)(i
= tail
->calc_cnv_len
);
3695 cnv
+= sizeof(si32_t
);
3698 * struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[];}
3700 * struct{si32_t buf_len_iscap; si32_t cap_len; char buf[];} */
3701 n_UNALIGN(si32_t
*,cnv
)[0] = tail
->cnv_len
;
3702 cnv
+= sizeof(si32_t
);
3704 i
= tail
->cnv_len
* sizeof(wc_t
);
3705 memcpy(cnv
, tail
->cnv_dat
, i
);
3707 *n_UNALIGN(wc_t
*,cnv
) = '\0';
3709 cnv
= save_cnv
+ (tail
->calc_cnv_len
& SI32_MAX
);
3714 /* Search for a yet existing identical mapping */
3716 enum n_go_input_flags gif
;
3718 gif
= tbpcp
->tbpc_flags
& n__GO_INPUT_CTX_MASK
;
3720 for(ltbcp
= NULL
, tbcp
= a_tty
.tg_bind
[gif
]; tbcp
!= NULL
;
3721 ltbcp
= tbcp
, tbcp
= tbcp
->tbc_next
)
3722 if(tbcp
->tbc_seq_len
== sl
&& !memcmp(tbcp
->tbc_seq
, cpbase
, sl
)){
3723 tbpcp
->tbpc_tbcp
= tbcp
;
3727 tbpcp
->tbpc_ltbcp
= ltbcp
;
3728 tbpcp
->tbpc_flags
|= (f
& a_TTY__BIND_MASK
);
3731 /* Create single string expansion if so desired */
3735 exp
= tbpcp
->tbpc_exp
.s
;
3737 i
= tbpcp
->tbpc_exp
.l
;
3738 if(i
> 0 && exp
[i
- 1] == '@'){
3740 if(!blankspacechar(exp
[i
- 1]))
3746 exp
[tbpcp
->tbpc_exp
.l
= i
] = '\0';
3747 tbpcp
->tbpc_flags
|= a_TTY_BIND_NOCOMMIT
;
3750 /* Reverse solidus cannot be placed last in expansion to avoid (at the
3751 * time of this writing) possible problems with newline escaping.
3752 * Don't care about (un)even number thereof */
3753 if(i
> 0 && exp
[i
- 1] == '\\'){
3754 n_err(_("`%s': reverse solidus cannot be last in expansion: %s\n"),
3755 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3759 /* It may map to an internal MLE command! */
3760 for(i
= 0; i
< n_NELEM(a_tty_bind_fun_names
); ++i
)
3761 if(!asccasecmp(exp
, a_tty_bind_fun_names
[i
])){
3762 tbpcp
->tbpc_flags
|= a_TTY_BIND_FUN_EXPAND(i
) |
3763 a_TTY_BIND_FUN_INTERNAL
|
3764 (head
->next
== NULL
? a_TTY_BIND_MLE1CNTRL
: 0);
3765 if((n_poption
& n_PO_D_V
) &&
3766 (tbpcp
->tbpc_flags
& a_TTY_BIND_NOCOMMIT
))
3767 n_err(_("`%s': MLE commands can't be made editable via @: %s\n"),
3768 tbpcp
->tbpc_cmd
, exp
);
3769 tbpcp
->tbpc_flags
&= ~a_TTY_BIND_NOCOMMIT
;
3774 f
|= a_TRUE_RV
; /* TODO because we only now true and false; DEFUNCT.. */
3776 n_string_gut(shoup
);
3778 return (f
& a_TRUE_RV
) != 0;
3782 a_tty_bind_resolve(struct a_tty_bind_ctx
*tbcp
){
3783 char capname
[a_TTY_BIND_CAPNAME_MAX
+1];
3784 struct n_termcap_value tv
;
3786 bool_t isfirst
; /* TODO For now: first char must be control! */
3790 n_UNINIT(next
, NULL
);
3791 for(cp
= tbcp
->tbc_cnv
, isfirst
= TRU1
, len
= tbcp
->tbc_cnv_len
;
3792 len
> 0; isfirst
= FAL0
, cp
= next
){
3796 i
= n_UNALIGN(si32_t
*,cp
)[0];
3803 /* struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[];} */
3804 cp
+= sizeof(si32_t
);
3805 i
= n_UNALIGN(si32_t
*,cp
)[0];
3806 cp
+= sizeof(si32_t
);
3807 for(j
= 0; j
< i
; ++j
)
3808 capname
[j
] = n_UNALIGN(wc_t
*,cp
)[j
];
3812 /* Use generic lookup mechanism if not a known query */
3816 tq
= n_termcap_query_for_name(capname
, n_TERMCAP_CAPTYPE_STRING
);
3818 tv
.tv_data
.tvd_string
= capname
;
3819 tq
= n__TERMCAP_QUERY_MAX1
;
3822 if(tq
< 0 || !n_termcap_query(tq
, &tv
)){
3823 if(n_poption
& n_PO_D_V
)
3824 n_err(_("`bind': unknown or unsupported capability: %s: %s\n"),
3825 capname
, tbcp
->tbc_seq
);
3826 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3831 /* struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;} */
3835 i
= strlen(tv
.tv_data
.tvd_string
);
3836 if(/*i > SI32_MAX ||*/ i
>= PTR2SIZE(next
- cp
)){
3837 if(n_poption
& n_PO_D_V
)
3838 n_err(_("`bind': capability expansion too long: %s: %s\n"),
3839 capname
, tbcp
->tbc_seq
);
3840 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3843 if(n_poption
& n_PO_D_V
)
3844 n_err(_("`bind': empty capability expansion: %s: %s\n"),
3845 capname
, tbcp
->tbc_seq
);
3846 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3848 }else if(isfirst
&& !cntrlchar(*tv
.tv_data
.tvd_string
)){
3849 if(n_poption
& n_PO_D_V
)
3850 n_err(_("`bind': capability expansion does not start with "
3851 "control: %s: %s\n"), capname
, tbcp
->tbc_seq
);
3852 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3855 n_UNALIGN(si32_t
*,cp
)[-1] = (si32_t
)i
;
3856 memcpy(cp
, tv
.tv_data
.tvd_string
, i
);
3864 a_tty_bind_del(struct a_tty_bind_parse_ctx
*tbpcp
){
3865 struct a_tty_bind_ctx
*ltbcp
, *tbcp
;
3868 tbcp
= tbpcp
->tbpc_tbcp
;
3870 if((ltbcp
= tbpcp
->tbpc_ltbcp
) != NULL
)
3871 ltbcp
->tbc_next
= tbcp
->tbc_next
;
3873 a_tty
.tg_bind
[tbpcp
->tbpc_flags
& n__GO_INPUT_CTX_MASK
] = tbcp
->tbc_next
;
3876 --a_tty
.tg_bind_cnt
;
3877 a_tty
.tg_bind_isdirty
= TRU1
;
3882 a_tty_bind_tree_build(void){
3886 for(i
= 0; i
< n__GO_INPUT_CTX_MAX1
; ++i
){
3887 struct a_tty_bind_ctx
*tbcp
;
3888 n_LCTAV(n_GO_INPUT_CTX_BASE
== 0);
3890 /* Somewhat wasteful, but easier to handle: simply clone the entire
3891 * primary key onto the secondary one, then only modify it */
3892 for(tbcp
= a_tty
.tg_bind
[n_GO_INPUT_CTX_BASE
]; tbcp
!= NULL
;
3893 tbcp
= tbcp
->tbc_next
)
3894 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
3895 a_tty__bind_tree_add(n_GO_INPUT_CTX_BASE
, &a_tty
.tg_bind_tree
[i
][0],
3898 if(i
!= n_GO_INPUT_CTX_BASE
)
3899 for(tbcp
= a_tty
.tg_bind
[i
]; tbcp
!= NULL
; tbcp
= tbcp
->tbc_next
)
3900 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
3901 a_tty__bind_tree_add(i
, &a_tty
.tg_bind_tree
[i
][0], tbcp
);
3904 a_tty
.tg_bind_isbuild
= TRU1
;
3909 a_tty_bind_tree_teardown(void){
3913 memset(&a_tty
.tg_bind_shcut_cancel
[0], 0,
3914 sizeof(a_tty
.tg_bind_shcut_cancel
));
3915 memset(&a_tty
.tg_bind_shcut_prompt_char
[0], 0,
3916 sizeof(a_tty
.tg_bind_shcut_prompt_char
));
3918 for(i
= 0; i
< n__GO_INPUT_CTX_MAX1
; ++i
)
3919 for(j
= 0; j
< HSHSIZE
; ++j
)
3920 a_tty__bind_tree_free(a_tty
.tg_bind_tree
[i
][j
]);
3921 memset(&a_tty
.tg_bind_tree
[0], 0, sizeof(a_tty
.tg_bind_tree
));
3923 a_tty
.tg_bind_isdirty
= a_tty
.tg_bind_isbuild
= FAL0
;
3928 a_tty__bind_tree_add(ui32_t hmap_idx
, struct a_tty_bind_tree
*store
[HSHSIZE
],
3929 struct a_tty_bind_ctx
*tbcp
){
3932 struct a_tty_bind_tree
*ntbtp
;
3938 for(cnvdat
= tbcp
->tbc_cnv
, cnvlen
= tbcp
->tbc_cnv_len
; cnvlen
> 0;){
3939 union {wchar_t const *wp
; char const *cp
;} u
;
3942 /* {si32_t buf_len_iscap;} */
3943 entlen
= *n_UNALIGN(si32_t
const*,cnvdat
);
3945 if(entlen
& SI32_MIN
){
3946 /* struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;}
3947 * Note that empty capabilities result in DEFUNCT */
3948 for(u
.cp
= (char const*)&n_UNALIGN(si32_t
const*,cnvdat
)[2];
3949 *u
.cp
!= '\0'; ++u
.cp
)
3950 ntbtp
= a_tty__bind_tree_add_wc(store
, ntbtp
, *u
.cp
, TRU1
);
3951 assert(ntbtp
!= NULL
);
3952 ntbtp
->tbt_isseq_trail
= TRU1
;
3955 /* struct{si32_t buf_len_iscap; wc_t buf[]+NUL;} */
3958 u
.wp
= (wchar_t const*)&n_UNALIGN(si32_t
const*,cnvdat
)[1];
3960 /* May be a special shortcut function? */
3961 if(ntbtp
== NULL
&& (tbcp
->tbc_flags
& a_TTY_BIND_MLE1CNTRL
)){
3965 ctx
= tbcp
->tbc_flags
& n__GO_INPUT_CTX_MASK
;
3966 fun
= tbcp
->tbc_flags
& a_TTY__BIND_FUN_MASK
;
3968 if(fun
== a_TTY_BIND_FUN_CANCEL
){
3969 for(cp
= &a_tty
.tg_bind_shcut_cancel
[ctx
][0];
3970 PTRCMP(cp
, <, &a_tty
.tg_bind_shcut_cancel
[ctx
]
3971 [n_NELEM(a_tty
.tg_bind_shcut_cancel
[ctx
]) - 1]); ++cp
)
3976 }else if(fun
== a_TTY_BIND_FUN_PROMPT_CHAR
){
3977 for(cp
= &a_tty
.tg_bind_shcut_prompt_char
[ctx
][0];
3978 PTRCMP(cp
, <, &a_tty
.tg_bind_shcut_prompt_char
[ctx
]
3979 [n_NELEM(a_tty
.tg_bind_shcut_prompt_char
[ctx
]) - 1]);
3988 isseq
= (u
.wp
[1] != '\0');
3989 for(; *u
.wp
!= '\0'; ++u
.wp
)
3990 ntbtp
= a_tty__bind_tree_add_wc(store
, ntbtp
, *u
.wp
, isseq
);
3992 assert(ntbtp
!= NULL
);
3993 ntbtp
->tbt_isseq_trail
= TRU1
;
4001 /* Should have been rendered defunctional at first instead */
4002 assert(ntbtp
!= NULL
);
4003 ntbtp
->tbt_bind
= tbcp
;
4007 static struct a_tty_bind_tree
*
4008 a_tty__bind_tree_add_wc(struct a_tty_bind_tree
**treep
,
4009 struct a_tty_bind_tree
*parentp
, wchar_t wc
, bool_t isseq
){
4010 struct a_tty_bind_tree
*tbtp
, *xtbtp
;
4013 if(parentp
== NULL
){
4014 treep
+= wc
% HSHSIZE
;
4016 /* Having no parent also means that the tree slot is possibly empty */
4017 for(tbtp
= *treep
; tbtp
!= NULL
;
4018 parentp
= tbtp
, tbtp
= tbtp
->tbt_sibling
){
4019 if(tbtp
->tbt_char
!= wc
)
4021 if(tbtp
->tbt_isseq
== isseq
)
4023 /* isseq MUST be linked before !isseq, so record this "parent"
4024 * sibling, but continue searching for now.
4025 * Otherwise it is impossible that we'll find what we look for */
4028 while((tbtp
= tbtp
->tbt_sibling
) != NULL
)
4029 assert(tbtp
->tbt_char
!= wc
);
4035 tbtp
= n_alloc(sizeof *tbtp
);
4036 memset(tbtp
, 0, sizeof *tbtp
);
4037 tbtp
->tbt_char
= wc
;
4038 tbtp
->tbt_isseq
= isseq
;
4040 if(parentp
== NULL
){
4041 tbtp
->tbt_sibling
= *treep
;
4044 tbtp
->tbt_sibling
= parentp
->tbt_sibling
;
4045 parentp
->tbt_sibling
= tbtp
;
4048 if((tbtp
= *(treep
= &parentp
->tbt_childs
)) != NULL
){
4049 for(;; tbtp
= xtbtp
){
4050 if(tbtp
->tbt_char
== wc
){
4051 if(tbtp
->tbt_isseq
== isseq
)
4053 /* isseq MUST be linked before, so it is impossible that we'll
4054 * find what we look for */
4057 while((tbtp
= tbtp
->tbt_sibling
) != NULL
)
4058 assert(tbtp
->tbt_char
!= wc
);
4065 if((xtbtp
= tbtp
->tbt_sibling
) == NULL
){
4066 treep
= &tbtp
->tbt_sibling
;
4072 xtbtp
= n_alloc(sizeof *xtbtp
);
4073 memset(xtbtp
, 0, sizeof *xtbtp
);
4074 xtbtp
->tbt_parent
= parentp
;
4075 xtbtp
->tbt_char
= wc
;
4076 xtbtp
->tbt_isseq
= isseq
;
4086 a_tty__bind_tree_free(struct a_tty_bind_tree
*tbtp
){
4088 while(tbtp
!= NULL
){
4089 struct a_tty_bind_tree
*tmp
;
4091 if((tmp
= tbtp
->tbt_childs
) != NULL
)
4092 a_tty__bind_tree_free(tmp
);
4094 tmp
= tbtp
->tbt_sibling
;
4100 # endif /* HAVE_KEY_BINDINGS */
4106 if(ok_blook(line_editor_disable
))
4109 /* Load the history file */
4110 # ifdef HAVE_HISTORY
4114 /* Force immediate resolve for anything which follows */
4115 n_psonce
|= n_PSO_LINE_EDITOR_INIT
;
4117 # ifdef HAVE_KEY_BINDINGS
4118 /* `bind's (and `unbind's) done from within resource files couldn't be
4119 * performed for real since our termcap driver wasn't yet loaded, and we
4120 * can't perform automatic init since the user may have disallowed so */
4121 /* C99 */{ /* TODO outsource into own file */
4122 struct a_tty_bind_ctx
*tbcp
;
4123 enum n_go_input_flags gif
;
4125 for(gif
= 0; gif
< n__GO_INPUT_CTX_MAX1
; ++gif
)
4126 for(tbcp
= a_tty
.tg_bind
[gif
]; tbcp
!= NULL
; tbcp
= tbcp
->tbc_next
)
4127 if((tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)) ==
4129 a_tty_bind_resolve(tbcp
);
4132 /* And we want to (try to) install some default key bindings */
4133 if(!ok_blook(line_editor_no_defaults
)){
4135 struct a_tty_bind_parse_ctx tbpc
;
4136 struct a_tty_bind_builtin_tuple
const *tbbtp
, *tbbtp_max
;
4139 buf
[0] = '$', buf
[1] = '\'', buf
[2] = '\\', buf
[3] = 'c',
4140 buf
[5] = '\'', buf
[6] = '\0';
4142 tbbtp
= a_tty_bind_base_tuples
;
4143 tbbtp_max
= &tbbtp
[n_NELEM(a_tty_bind_base_tuples
)];
4144 flags
= n_GO_INPUT_CTX_BASE
;
4146 for(; tbbtp
< tbbtp_max
; ++tbbtp
){
4147 memset(&tbpc
, 0, sizeof tbpc
);
4148 tbpc
.tbpc_cmd
= "bind";
4149 if(tbbtp
->tbbt_iskey
){
4150 buf
[4] = tbbtp
->tbbt_ckey
;
4151 tbpc
.tbpc_in_seq
= buf
;
4153 tbpc
.tbpc_in_seq
= savecatsep(":", '\0',
4154 n_termcap_name_of_query(tbbtp
->tbbt_query
));
4155 tbpc
.tbpc_exp
.s
= n_UNCONST(tbbtp
->tbbt_exp
[0] == '\0'
4156 ? a_tty_bind_fun_names
[(ui8_t
)tbbtp
->tbbt_exp
[1]]
4158 tbpc
.tbpc_exp
.l
= strlen(tbpc
.tbpc_exp
.s
);
4159 tbpc
.tbpc_flags
= flags
;
4160 /* ..but don't want to overwrite any user settings */
4161 a_tty_bind_create(&tbpc
, FAL0
);
4163 if(flags
== n_GO_INPUT_CTX_BASE
){
4164 tbbtp
= a_tty_bind_default_tuples
;
4165 tbbtp_max
= &tbbtp
[n_NELEM(a_tty_bind_default_tuples
)];
4166 flags
= n_GO_INPUT_CTX_DEFAULT
;
4170 # endif /* HAVE_KEY_BINDINGS */
4177 n_tty_destroy(bool_t xit_fastpath
){
4180 if(!(n_psonce
& n_PSO_LINE_EDITOR_INIT
))
4183 /* Write the history file */
4184 # ifdef HAVE_HISTORY
4189 # if defined HAVE_KEY_BINDINGS && defined HAVE_DEBUG
4190 n_go_command(n_GO_INPUT_NONE
, "unbind * *");
4194 memset(&a_tty
, 0, sizeof a_tty
);
4196 n_psonce
&= ~n_PSO_LINE_EDITOR_INIT
;
4203 (n_tty_readline
)(enum n_go_input_flags gif
, char const *prompt
,
4204 char **linebuf
, size_t *linesize
, size_t n
, bool_t
*histok_or_null
4205 n_MEMORY_DEBUG_ARGS
){
4206 struct a_tty_line tl
;
4207 struct n_string xprompt
;
4214 assert(!ok_blook(line_editor_disable
));
4215 if(!(n_psonce
& n_PSO_LINE_EDITOR_INIT
))
4217 assert(n_psonce
& n_PSO_LINE_EDITOR_INIT
);
4220 n_colour_env_create(n_COLOUR_CTX_MLE
, n_tty_fp
, FAL0
);
4222 /* .tl_pos_buf is a hack */
4223 posbuf
= pos
= NULL
;
4225 if(n_COLOUR_IS_ACTIVE()){
4227 struct n_colour_pen
*ccp
;
4228 struct str
const *sp
;
4230 if((ccp
= n_colour_pen_create(n_COLOUR_ID_MLE_POSITION
, NULL
)) != NULL
&&
4231 (sp
= n_colour_pen_to_str(ccp
)) != NULL
){
4233 if((sp
= n_colour_reset_to_str()) != NULL
){
4238 posbuf
= n_autorec_alloc(l1
+ 4 + l2
+1);
4239 memcpy(posbuf
, ccol
, l1
);
4241 memcpy(&pos
[4], sp
->s
, ++l2
);
4247 posbuf
= pos
= n_autorec_alloc(4 +1);
4250 # endif /* HAVE_COLOUR */
4252 memset(&tl
, 0, sizeof tl
);
4253 tl
.tl_goinflags
= gif
;
4255 # ifdef HAVE_KEY_BINDINGS
4259 if((cp
= ok_vlook(bind_timeout
)) != NULL
){
4262 n_idec_ui64_cp(&uib
, cp
, 0, NULL
);
4265 /* Convert to tenths of a second, unfortunately */
4266 (uib
= (uib
+ 99) / 100) <= a_TTY_BIND_TIMEOUT_MAX
)
4267 tl
.tl_bind_timeout
= (ui8_t
)uib
;
4268 else if(n_poption
& n_PO_D_V
)
4269 n_err(_("Ignoring invalid *bind-timeout*: %s\n"), cp
);
4273 if(a_tty
.tg_bind_isdirty
)
4274 a_tty_bind_tree_teardown();
4275 if(a_tty
.tg_bind_cnt
> 0 && !a_tty
.tg_bind_isbuild
)
4276 a_tty_bind_tree_build();
4277 tl
.tl_bind_tree_hmap
= &a_tty
.tg_bind_tree
[gif
& n__GO_INPUT_CTX_MASK
];
4278 tl
.tl_bind_shcut_cancel
=
4279 &a_tty
.tg_bind_shcut_cancel
[gif
& n__GO_INPUT_CTX_MASK
];
4280 tl
.tl_bind_shcut_prompt_char
=
4281 &a_tty
.tg_bind_shcut_prompt_char
[gif
& n__GO_INPUT_CTX_MASK
];
4282 # endif /* HAVE_KEY_BINDINGS */
4285 tl
.tl_pos_buf
= posbuf
;
4289 if(!(gif
& n_GO_INPUT_PROMPT_NONE
)){
4290 n_string_creat_auto(&xprompt
);
4292 if((tl
.tl_prompt_width
= n_tty_create_prompt(&xprompt
, prompt
, gif
)
4294 tl
.tl_prompt
= n_string_cp_const(&xprompt
);
4295 tl
.tl_prompt_length
= (ui32_t
)xprompt
.s_len
;
4299 tl
.tl_line
.cbuf
= *linebuf
;
4301 tl
.tl_defc
.s
= savestrbuf(*linebuf
, n
);
4304 tl
.tl_x_buf
= linebuf
;
4305 tl
.tl_x_bufsize
= linesize
;
4307 a_tty
.tg_line
= &tl
;
4309 n_TERMCAP_RESUME(FAL0
);
4310 a_tty_term_mode(TRU1
);
4311 nn
= a_tty_readline(&tl
, n
, histok_or_null n_MEMORY_DEBUG_ARGSCALL
);
4312 n_COLOUR( n_colour_env_gut(); )
4313 a_tty_term_mode(FAL0
);
4314 n_TERMCAP_SUSPEND(FAL0
);
4316 a_tty
.tg_line
= NULL
;
4323 n_tty_addhist(char const *s
, enum n_go_input_flags gif
){
4328 # ifdef HAVE_HISTORY
4329 if(*s
!= '\0' && (n_psonce
& n_PSO_LINE_EDITOR_INIT
) &&
4330 a_tty
.tg_hist_size_max
> 0 &&
4331 (!(gif
& n_GO_INPUT_HIST_GABBY
) || ok_blook(history_gabby
)) &&
4332 !ok_blook(line_editor_disable
)){
4334 a_tty_hist_add(s
, gif
);
4341 # ifdef HAVE_HISTORY
4345 struct a_tty_hist
*thp
;
4349 if(ok_blook(line_editor_disable
)){
4350 n_err(_("history: *line-editor-disable* is set\n"));
4354 if(!(n_psonce
& n_PSO_LINE_EDITOR_INIT
)){
4356 assert(n_psonce
& n_PSO_LINE_EDITOR_INIT
);
4359 if(*(argv
= v
) == NULL
)
4363 if(!asccasecmp(*argv
, "show"))
4365 if(!asccasecmp(*argv
, "clear"))
4368 if(!asccasecmp(*argv
, "load")){
4369 if(!a_tty_hist_load())
4373 if(!asccasecmp(*argv
, "save")){
4374 if(!a_tty_hist_save())
4379 if((n_idec_siz_cp(&entry
, *argv
, 10, NULL
4380 ) & (n_IDEC_STATE_EMASK
| n_IDEC_STATE_CONSUMED
)
4381 ) == n_IDEC_STATE_CONSUMED
)
4384 n_err(_("Synopsis: history: %s\n"),
4385 /* Same string as in cmd-tab.h, still hoping...) */
4386 _("<show (default)|load|save|clear> or select history <NO>"));
4390 return (v
== NULL
? !STOP
: !OKAY
); /* xxx 1:bad 0:good -- do some */
4396 if(a_tty
.tg_hist
== NULL
)
4399 if((fp
= Ftmp(NULL
, "hist", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
4400 n_perr(_("tmpfile"), 0);
4405 no
= a_tty
.tg_hist_size
;
4408 for(thp
= a_tty
.tg_hist
; thp
!= NULL
;
4409 --no
, ++l
, thp
= thp
->th_older
){
4414 switch(thp
->th_flags
& a_TTY_HIST_CTX_MASK
){
4416 case a_TTY_HIST_CTX_DEFAULT
:
4419 case a_TTY_HIST_CTX_COMPOSE
:
4423 c2
= (thp
->th_flags
& a_TTY_HIST_GABBY
) ? '*' : ' ';
4425 if(n_poption
& n_PO_D_V
)
4426 fprintf(fp
, "# Length +%" PRIu32
", total %" PRIuZ
"\n",
4428 fprintf(fp
, "%c%c%4" PRIuZ
"\t%s\n", c1
, c2
, no
, thp
->th_dat
);
4431 page_or_print(fp
, l
);
4437 while((thp
= a_tty
.tg_hist
) != NULL
){
4438 a_tty
.tg_hist
= thp
->th_older
;
4441 a_tty
.tg_hist_tail
= NULL
;
4442 a_tty
.tg_hist_size
= 0;
4448 ep
= (entry
< 0) ? -entry
: entry
;
4450 if(ep
!= 0 && UICMP(z
, ep
, <=, a_tty
.tg_hist_size
)){
4454 ep
= (siz_t
)a_tty
.tg_hist_size
- ep
;
4455 for(thp
= a_tty
.tg_hist
;; thp
= thp
->th_older
){
4456 assert(thp
!= NULL
);
4458 n_go_input_inject((n_GO_INPUT_INJECT_COMMIT
|
4459 n_GO_INPUT_INJECT_HISTORY
), v
= thp
->th_dat
, thp
->th_len
);
4464 n_err(_("`history': no such entry: %" PRIdZ
"\n"), entry
);
4470 # endif /* HAVE_HISTORY */
4472 # ifdef HAVE_KEY_BINDINGS
4475 struct a_tty_bind_ctx
*tbcp
;
4476 enum n_go_input_flags gif
;
4478 union {char const *cp
; char *p
; char c
;} c
;
4479 struct n_cmd_arg_ctx
*cacp
;
4484 c
.cp
= cacp
->cac_arg
->ca_arg
.ca_str
.s
;
4485 if(cacp
->cac_no
== 1)
4488 show
= !asccasecmp(cacp
->cac_arg
->ca_next
->ca_arg
.ca_str
.s
, "show");
4491 if((gif
= a_tty_bind_ctx_find(c
.cp
)) == (enum n_go_input_flags
)-1){
4492 if(!(aster
= n_is_all_or_aster(c
.cp
)) || !show
){
4493 n_err(_("`bind': invalid context: %s\n"), c
.cp
);
4504 if((fp
= Ftmp(NULL
, "bind", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
4505 n_perr(_("tmpfile"), 0);
4512 for(tbcp
= a_tty
.tg_bind
[gif
]; tbcp
!= NULL
;
4513 ++lns
, tbcp
= tbcp
->tbc_next
){
4514 /* Print the bytes of resolved terminal capabilities, then */
4515 if((n_poption
& n_PO_D_V
) &&
4516 (tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)
4517 ) == a_TTY_BIND_RESOLVE
){
4519 union {wchar_t const *wp
; char const *cp
;} u
;
4522 char const *cnvdat
, *bsep
, *cbufp
;
4527 cbuf
[0] = '=', cbuf
[2] = '\0';
4528 for(cnvdat
= tbcp
->tbc_cnv
, cnvlen
= tbcp
->tbc_cnv_len
;
4530 if(cnvdat
!= tbcp
->tbc_cnv
)
4533 /* {si32_t buf_len_iscap;} */
4534 entlen
= *n_UNALIGN(si32_t
const*,cnvdat
);
4535 if(entlen
& SI32_MIN
){
4536 /* struct{si32_t buf_len_iscap; si32_t cap_len;
4537 * char buf[]+NUL;} */
4539 u
.cp
= (char const*)
4540 &n_UNALIGN(si32_t
const*,cnvdat
)[2];
4541 (c
.c
= *u
.cp
) != '\0'; ++u
.cp
){
4542 if(asciichar(c
.c
) && !cntrlchar(c
.c
))
4543 cbuf
[1] = c
.c
, cbufp
= cbuf
;
4546 fprintf(fp
, "%s\\x%02X%s",
4547 bsep
, (ui32_t
)(ui8_t
)c
.c
, cbufp
);
4562 fprintf(fp
, "%sbind %s %s %s%s%s\n",
4563 ((tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
)
4564 /* I18N: `bind' sequence not working, either because it is
4565 * I18N: using Unicode and that is not available in the locale,
4566 * I18N: or a termcap(5)/terminfo(5) sequence won't work out */
4567 ? _("# <Defunctional> ") : n_empty
),
4568 a_tty_bind_ctx_maps
[gif
].tbcm_name
, tbcp
->tbc_seq
,
4569 n_shexp_quote_cp(tbcp
->tbc_exp
, TRU1
),
4570 (tbcp
->tbc_flags
& a_TTY_BIND_NOCOMMIT
? n_at
: n_empty
),
4571 (!(n_poption
& n_PO_D_VV
) ? n_empty
4572 : (tbcp
->tbc_flags
& a_TTY_BIND_FUN_INTERNAL
4573 ? _(" # MLE internal") : n_empty
))
4576 if(!aster
|| ++gif
>= n__GO_INPUT_CTX_MAX1
)
4579 page_or_print(fp
, lns
);
4583 struct a_tty_bind_parse_ctx tbpc
;
4584 struct n_cmd_arg
*cap
;
4586 memset(&tbpc
, 0, sizeof tbpc
);
4587 tbpc
.tbpc_cmd
= cacp
->cac_desc
->cad_name
;
4588 tbpc
.tbpc_in_seq
= (cap
= cacp
->cac_arg
->ca_next
)->ca_arg
.ca_str
.s
;
4589 if((cap
= cap
->ca_next
) != NULL
){
4590 tbpc
.tbpc_exp
.s
= cap
->ca_arg
.ca_str
.s
;
4591 tbpc
.tbpc_exp
.l
= cap
->ca_arg
.ca_str
.l
;
4593 tbpc
.tbpc_flags
= gif
;
4594 if(!a_tty_bind_create(&tbpc
, TRU1
))
4599 return (v
!= NULL
) ? n_EXIT_OK
: n_EXIT_ERR
;
4604 struct a_tty_bind_parse_ctx tbpc
;
4605 struct a_tty_bind_ctx
*tbcp
;
4606 enum n_go_input_flags gif
;
4608 union {char const *cp
; char *p
;} c
;
4609 struct n_cmd_arg_ctx
*cacp
;
4613 c
.cp
= cacp
->cac_arg
->ca_arg
.ca_str
.s
;
4616 if((gif
= a_tty_bind_ctx_find(c
.cp
)) == (enum n_go_input_flags
)-1){
4617 if(!(aster
= n_is_all_or_aster(c
.cp
))){
4618 n_err(_("`unbind': invalid context: %s\n"), c
.cp
);
4625 c
.cp
= cacp
->cac_arg
->ca_next
->ca_arg
.ca_str
.s
;
4627 if(n_is_all_or_aster(c
.cp
)){
4628 while((tbcp
= a_tty
.tg_bind
[gif
]) != NULL
){
4629 memset(&tbpc
, 0, sizeof tbpc
);
4630 tbpc
.tbpc_tbcp
= tbcp
;
4631 tbpc
.tbpc_flags
= gif
;
4632 a_tty_bind_del(&tbpc
);
4635 memset(&tbpc
, 0, sizeof tbpc
);
4636 tbpc
.tbpc_cmd
= cacp
->cac_desc
->cad_name
;
4637 tbpc
.tbpc_in_seq
= c
.cp
;
4638 tbpc
.tbpc_flags
= gif
;
4640 if(n_UNLIKELY(!a_tty_bind_parse(FAL0
, &tbpc
)))
4642 else if(n_UNLIKELY((tbcp
= tbpc
.tbpc_tbcp
) == NULL
)){
4643 n_err(_("`unbind': no such `bind'ing: %s %s\n"),
4644 a_tty_bind_ctx_maps
[gif
].tbcm_name
, c
.cp
);
4647 a_tty_bind_del(&tbpc
);
4650 if(aster
&& ++gif
< n__GO_INPUT_CTX_MAX1
)
4654 return (v
!= NULL
) ? n_EXIT_OK
: n_EXIT_ERR
;
4656 # endif /* HAVE_KEY_BINDINGS */
4658 #else /* HAVE_MLE */
4660 * The really-nothing-at-all implementation
4664 a_tty_signal(int sig
){
4665 /* Prototype at top */
4666 # ifdef HAVE_TERMCAP
4667 sigset_t nset
, oset
;
4669 NYD_X
; /* Signal handler */
4672 # ifdef HAVE_TERMCAP
4673 n_TERMCAP_SUSPEND(TRU1
);
4677 sigaddset(&nset
, sig
);
4678 sigprocmask(SIG_UNBLOCK
, &nset
, &oset
);
4680 /* When we come here we'll continue editing, so reestablish */
4681 sigprocmask(SIG_BLOCK
, &oset
, (sigset_t
*)NULL
);
4684 n_TERMCAP_RESUME(TRU1
);
4685 # endif /* HAVE_TERMCAP */
4696 n_tty_destroy(bool_t xit_fastpath
){
4698 n_UNUSED(xit_fastpath
);
4704 (n_tty_readline
)(enum n_go_input_flags gif
, char const *prompt
,
4705 char **linebuf
, size_t *linesize
, size_t n
, bool_t
*histok_or_null
4706 n_MEMORY_DEBUG_ARGS
){
4707 struct n_string xprompt
;
4710 n_UNUSED(histok_or_null
);
4712 if(!(gif
& n_GO_INPUT_PROMPT_NONE
)){
4713 if(n_tty_create_prompt(n_string_creat_auto(&xprompt
), prompt
, gif
) > 0){
4714 fwrite(xprompt
.s_dat
, 1, xprompt
.s_len
, n_tty_fp
);
4719 # ifdef HAVE_TERMCAP
4721 n_TERMCAP_RESUME(FAL0
);
4723 rv
= (readline_restart
)(n_stdin
, linebuf
, linesize
, n
4724 n_MEMORY_DEBUG_ARGSCALL
);
4725 # ifdef HAVE_TERMCAP
4726 n_TERMCAP_SUSPEND(FAL0
);
4734 n_tty_addhist(char const *s
, enum n_go_input_flags gif
){
4740 #endif /* nothing at all */
4742 #undef a_TTY_SIGNALS