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 - 2017 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);
50 sigprocmask(SIG_BLOCK
, &nset
, &oset
);
51 a_tty_oint
= safe_signal(SIGINT
, &n_tty_signal
);
52 a_tty_oquit
= safe_signal(SIGQUIT
, &n_tty_signal
);
53 a_tty_oterm
= safe_signal(SIGTERM
, &n_tty_signal
);
54 a_tty_ohup
= safe_signal(SIGHUP
, &n_tty_signal
);
55 a_tty_otstp
= safe_signal(SIGTSTP
, &n_tty_signal
);
56 a_tty_ottin
= safe_signal(SIGTTIN
, &n_tty_signal
);
57 a_tty_ottou
= safe_signal(SIGTTOU
, &n_tty_signal
);
58 sigprocmask(SIG_SETMASK
, &oset
, NULL
);
63 a_tty_sigs_down(void){
69 sigprocmask(SIG_BLOCK
, &nset
, &oset
);
70 safe_signal(SIGINT
, a_tty_oint
);
71 safe_signal(SIGQUIT
, a_tty_oquit
);
72 safe_signal(SIGTERM
, a_tty_oterm
);
73 safe_signal(SIGHUP
, a_tty_ohup
);
74 safe_signal(SIGTSTP
, a_tty_otstp
);
75 safe_signal(SIGTTIN
, a_tty_ottin
);
76 safe_signal(SIGTTOU
, a_tty_ottou
);
77 sigprocmask(SIG_SETMASK
, &oset
, NULL
);
80 #endif /* a_TTY_SIGNALS */
82 static sigjmp_buf a_tty__actjmp
; /* TODO someday, we won't need it no more */
84 a_tty__acthdl(int s
) /* TODO someday, we won't need it no more */
86 NYD_X
; /* Signal handler */
87 siglongjmp(a_tty__actjmp
, s
);
91 getapproval(char const * volatile prompt
, bool_t noninteract_default
)
93 sighandler_type
volatile oint
, ohup
;
98 if(!(n_psonce
& n_PSO_INTERACTIVE
) || (n_pstate
& n_PS_ROBOT
)){
100 rv
= noninteract_default
;
106 char const *quest
= noninteract_default
107 ? _("[yes]/no? ") : _("[no]/yes? ");
110 prompt
= _("Continue");
111 prompt
= savecatsep(prompt
, ' ', quest
);
114 oint
= safe_signal(SIGINT
, SIG_IGN
);
115 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
116 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
118 safe_signal(SIGINT
, &a_tty__acthdl
);
119 safe_signal(SIGHUP
, &a_tty__acthdl
);
121 if (n_go_input(n_GO_INPUT_CTX_DEFAULT
| n_GO_INPUT_NL_ESC
, prompt
,
122 &termios_state
.ts_linebuf
, &termios_state
.ts_linesize
, NULL
,NULL
) >= 0)
123 rv
= (boolify(termios_state
.ts_linebuf
, UIZ_MAX
,
124 noninteract_default
) > 0);
126 safe_signal(SIGHUP
, ohup
);
127 safe_signal(SIGINT
, oint
);
137 getuser(char const * volatile query
) /* TODO v15-compat obsolete */
139 sighandler_type
volatile oint
, ohup
;
140 char * volatile user
= NULL
;
147 oint
= safe_signal(SIGINT
, SIG_IGN
);
148 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
149 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
151 safe_signal(SIGINT
, &a_tty__acthdl
);
152 safe_signal(SIGHUP
, &a_tty__acthdl
);
154 if (n_go_input(n_GO_INPUT_CTX_DEFAULT
| n_GO_INPUT_NL_ESC
, query
,
155 &termios_state
.ts_linebuf
, &termios_state
.ts_linesize
, NULL
,NULL
) >= 0)
156 user
= termios_state
.ts_linebuf
;
159 safe_signal(SIGHUP
, ohup
);
160 safe_signal(SIGINT
, oint
);
169 getpassword(char const *query
)/* TODO v15: use _only_ n_tty_fp! */
171 sighandler_type
volatile oint
, ohup
;
173 char * volatile pass
;
178 if(!(n_psonce
& n_PSO_TTYIN
))
182 query
= _("Password: ");
183 fputs(query
, n_tty_fp
);
186 /* FIXME everywhere: tcsetattr() generates SIGTTOU when we're not in
187 * FIXME foreground pgrp, and can fail with EINTR!! also affects
188 * FIXME termios_state_reset() */
189 tcgetattr(STDIN_FILENO
, &termios_state
.ts_tios
);
190 memcpy(&tios
, &termios_state
.ts_tios
, sizeof tios
);
191 termios_state
.ts_needs_reset
= TRU1
;
192 tios
.c_iflag
&= ~(ISTRIP
);
193 tios
.c_lflag
&= ~(ECHO
| ECHOE
| ECHOK
| ECHONL
);
195 oint
= safe_signal(SIGINT
, SIG_IGN
);
196 ohup
= safe_signal(SIGHUP
, SIG_IGN
);
197 if ((sig
= sigsetjmp(a_tty__actjmp
, 1)) != 0)
199 safe_signal(SIGINT
, &a_tty__acthdl
);
200 safe_signal(SIGHUP
, &a_tty__acthdl
);
202 tcsetattr(STDIN_FILENO
, TCSAFLUSH
, &tios
);
203 if (readline_restart(n_stdin
, &termios_state
.ts_linebuf
,
204 &termios_state
.ts_linesize
, 0) >= 0)
205 pass
= termios_state
.ts_linebuf
;
207 termios_state_reset();
208 putc('\n', n_tty_fp
);
210 safe_signal(SIGHUP
, ohup
);
211 safe_signal(SIGINT
, oint
);
218 #endif /* HAVE_SOCKETS */
221 n_tty_create_prompt(struct n_string
*store
, char const *xprompt
,
222 enum n_go_input_flags gif
){
223 struct n_visual_info_ctx vic
;
229 /* Prompt creation indicates that prompt printing is directly ahead, so take
230 * this opportunity of UI-in-a-known-state and advertise the error ring */
232 if((n_psonce
& (n_PSO_INTERACTIVE
| n_PSO_ERRORS_NOTED
)
233 ) == n_PSO_INTERACTIVE
&& (n_pstate
& n_PS_ERRORS_PROMPT
)){
234 n_psonce
|= n_PSO_ERRORS_NOTED
;
235 fprintf(n_stdout
, _("There are new messages in the error message ring "
237 " The `errors' command manages this message ring\n"),
243 n_string_trunc(store
, 0);
245 if(gif
& n_GO_INPUT_PROMPT_NONE
){
250 if(n_pstate
& n_PS_ERRORS_PROMPT
){
251 n_pstate
&= ~n_PS_ERRORS_PROMPT
;
252 store
= n_string_push_cp(store
, V_(n_error
));
253 store
= n_string_push_c(store
, '#');
254 store
= n_string_push_c(store
, ' ');
258 cp
= (gif
& n_GO_INPUT_PROMPT_EVAL
)
259 ? (gif
& n_GO_INPUT_NL_FOLLOW
? ok_vlook(prompt2
) : ok_vlook(prompt
))
261 if(cp
!= NULL
&& *cp
!= '\0'){
262 enum n_shexp_state shs
;
264 store
= n_string_push_cp(store
, cp
);
265 in
.s
= n_string_cp(store
);
268 store
= n_string_drop_ownership(store
);
270 shs
= n_shexp_parse_token((n_SHEXP_PARSE_LOG
|
271 n_SHEXP_PARSE_IGNORE_EMPTY
| n_SHEXP_PARSE_QUOTE_AUTO_FIXED
|
272 n_SHEXP_PARSE_QUOTE_AUTO_DSQ
), store
, &in
, NULL
);
273 if((shs
& n_SHEXP_STATE_ERR_MASK
) || !(shs
& n_SHEXP_STATE_STOP
)){
274 store
= n_string_clear(store
);
275 store
= n_string_take_ownership(store
, out
.s
, out
.l
+1, out
.l
);
277 n_err(_("*prompt2?* evaluation failed, actively unsetting it\n"));
278 if(gif
& n_GO_INPUT_NL_FOLLOW
)
289 /* Make all printable TODO not know, we want to pass through ESC/CSI! */
291 in
.s
= n_string_cp(store
);
293 makeprint(&in
, &out
);
294 store
= n_string_assign_buf(store
, out
.s
, out
.l
);
298 /* We need the visual width.. */
299 memset(&vic
, 0, sizeof vic
);
300 vic
.vic_indat
= n_string_cp(store
);
301 vic
.vic_inlen
= store
->s_len
;
302 for(pwidth
= 0; vic
.vic_inlen
> 0;){
303 /* but \[ .. \] is not taken into account */
304 if(vic
.vic_indat
[0] == '\\' && vic
.vic_inlen
> 1 &&
305 vic
.vic_indat
[1] == '['){
308 i
= PTR2SIZE(vic
.vic_indat
- store
->s_dat
);
309 store
= n_string_cut(store
, i
, 2);
310 cp
= &n_string_cp(store
)[i
];
311 i
= store
->s_len
- i
;
314 n_err(_("Open \\[ sequence not closed in *prompt2?*\n"));
317 if(cp
[0] == '\\' && cp
[1] == ']')
320 i
= PTR2SIZE(cp
- store
->s_dat
);
321 store
= n_string_cut(store
, i
, 2);
322 vic
.vic_indat
= &n_string_cp(store
)[i
];
323 vic
.vic_inlen
= store
->s_len
- i
;
324 }else if(!n_visual_info(&vic
, n_VISUAL_INFO_WIDTH_QUERY
|
325 n_VISUAL_INFO_ONE_CHAR
)){
326 n_err(_("Character set error in evaluation of *prompt2?*\n"));
329 pwidth
+= (ui32_t
)vic
.vic_vi_width
;
330 vic
.vic_indat
= vic
.vic_oudat
;
331 vic
.vic_inlen
= vic
.vic_oulen
;
335 /* And there may be colour support, too */
337 if(n_COLOUR_IS_ACTIVE()){
338 struct str
const *psp
, *rsp
;
339 struct n_colour_pen
*ccp
;
341 if((ccp
= n_colour_pen_create(n_COLOUR_ID_MLE_PROMPT
, NULL
)) != NULL
&&
342 (psp
= n_colour_pen_to_str(ccp
)) != NULL
&&
343 (rsp
= n_colour_reset_to_str()) != NULL
){
344 store
= n_string_unshift_buf(store
, psp
->s
, psp
->l
);
345 /*store =*/ n_string_push_buf(store
, rsp
->s
, rsp
->l
);
348 #endif /* HAVE_COLOUR */
356 * MLE: the Mailx-Line-Editor, our homebrew editor
357 * (inspired from NetBSDs sh(1) and dash(1)s hetio.c).
359 * Only used in interactive mode.
360 * TODO . This code should be splitted in funs/raw input/bind modules.
361 * TODO . We work with wide characters, but not for buffer takeovers and
362 * TODO cell2save()ings. This should be changed. For the former the buffer
363 * TODO thus needs to be converted to wide first, and then simply be fed in.
364 * TODO . We repaint too much. To overcome this use the same approach that my
365 * TODO terminal library uses, add a true "virtual screen line" that stores
366 * TODO the actually visible content, keep a notion of "first modified slot"
367 * TODO and "last modified slot" (including "unknown" and "any" specials),
368 * TODO update that virtual instead, then synchronize what has truly changed.
369 * TODO I.e., add an indirection layer.
370 * TODO . No BIDI support.
371 * TODO . `bind': we currently use only one lookup tree.
372 * TODO For absolute graceful behaviour in conjunction (with HAVE_TERMCAP) we
373 * TODO need a lower level tree, which possibly combines bytes into "symbolic
374 * TODO wchar_t values", into "keys" that is, as applicable, and an upper
375 * TODO layer which only works on "keys" in order to possibly combine them
376 * TODO into key sequences. We can reuse existent tree code for that.
377 * TODO We need an additional hashmap which maps termcap/terminfo names to
378 * TODO (their byte representations and) a dynamically assigned unique
379 * TODO "symbolic wchar_t value". This implies we may have incompatibilities
380 * TODO when __STDC_ISO_10646__ is not defined. Also we do need takeover-
381 * TODO bytes storage, but it can be a string_creat_auto in the line struct.
382 * TODO Until then we can run into ambiguities; in rare occasions.
385 /* To avoid memory leaks etc. with the current codebase that simply longjmp(3)s
386 * we're forced to use the very same buffer--the one that is passed through to
387 * us from the outside--to store anything we need, i.e., a "struct cell[]", and
388 * convert that on-the-fly back to the plain char* result once we're done.
389 * To simplify our live, use savestr() buffers for all other needed memory */
391 # ifdef HAVE_KEY_BINDINGS
392 /* Default *bind-timeout* key-sequence continuation timeout, in tenths of
393 * a second. Must fit in 8-bit! Update the manual upon change! */
394 # define a_TTY_BIND_TIMEOUT 2
395 # define a_TTY_BIND_TIMEOUT_MAX SI8_MAX
397 n_CTAV(a_TTY_BIND_TIMEOUT_MAX
<= UI8_MAX
);
399 /* We have a chicken-and-egg problem with `bind' and our termcap layer,
400 * because we may not initialize the latter automatically to allow users to
401 * specify *termcap-disable* and let it mean exactly that.
402 * On the other hand users can be expected to use `bind' in resource file(s).
403 * Therefore bindings which involve termcap/terminfo sequences, and which are
404 * defined before n_PSO_STARTED signals usability of termcap/terminfo, will be
405 * (partially) delayed until tty_init() is called.
406 * And we preallocate space for the expansion of the resolved capability */
407 # define a_TTY_BIND_CAPNAME_MAX 15
408 # define a_TTY_BIND_CAPEXP_ROUNDUP 16
410 n_CTAV(n_ISPOW2(a_TTY_BIND_CAPEXP_ROUNDUP
));
411 n_CTA(a_TTY_BIND_CAPEXP_ROUNDUP
<= SI8_MAX
/ 2, "Variable must fit in 6-bit");
412 n_CTA(a_TTY_BIND_CAPEXP_ROUNDUP
>= 8, "Variable too small");
413 # endif /* HAVE_KEY_BINDINGS */
415 /* The maximum size (of a_tty_cell's) in a line */
416 # define a_TTY_LINE_MAX SI32_MAX
418 /* (Some more CTAs around) */
419 n_CTA(a_TTY_LINE_MAX
<= SI32_MAX
,
420 "a_TTY_LINE_MAX larger than SI32_MAX, but the MLE uses 32-bit arithmetic");
422 /* When shall the visual screen be scrolled, in % of usable screen width */
423 # define a_TTY_SCROLL_MARGIN_LEFT 15
424 # define a_TTY_SCROLL_MARGIN_RIGHT 10
426 /* fexpand() flags for expand-on-tab */
427 # define a_TTY_TAB_FEXP_FL \
428 (FEXP_NOPROTO | FEXP_FULL | FEXP_SILENT | FEXP_MULTIOK)
430 /* Columns to ripoff: outermost may not be touched, plus position indicator.
431 * Must thus be at least 1, but should be >= 1+4 to dig the position indicator
432 * that we place (if there is sufficient space) */
433 # define a_TTY_WIDTH_RIPOFF 5
435 /* The implementation of the MLE functions always exists, and is based upon
436 * the a_TTY_BIND_FUN_* constants, so most of this enum is always necessary */
437 enum a_tty_bind_flags
{
438 # ifdef HAVE_KEY_BINDINGS
439 a_TTY_BIND_RESOLVE
= 1u<<8, /* Term cap. yet needs to be resolved */
440 a_TTY_BIND_DEFUNCT
= 1u<<9, /* Unicode/term cap. used but not avail. */
441 a_TTY__BIND_MASK
= a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
,
442 /* MLE fun assigned to a one-byte-sequence: this may be used for special
443 * key-sequence bypass processing */
444 a_TTY_BIND_MLE1CNTRL
= 1u<<10,
445 a_TTY_BIND_NOCOMMIT
= 1u<<11, /* Expansion shall be editable */
448 /* MLE internal commands */
449 a_TTY_BIND_FUN_INTERNAL
= 1u<<15,
450 a_TTY__BIND_FUN_SHIFT
= 16u,
451 a_TTY__BIND_FUN_SHIFTMAX
= 24u,
452 a_TTY__BIND_FUN_MASK
= ((1u << a_TTY__BIND_FUN_SHIFTMAX
) - 1) &
453 ~((1u << a_TTY__BIND_FUN_SHIFT
) - 1),
454 # define a_TTY_BIND_FUN_REDUCE(X) \
455 (((ui32_t)(X) & a_TTY__BIND_FUN_MASK) >> a_TTY__BIND_FUN_SHIFT)
456 # define a_TTY_BIND_FUN_EXPAND(X) \
457 (((ui32_t)(X) & (a_TTY__BIND_FUN_MASK >> a_TTY__BIND_FUN_SHIFT)) << \
458 a_TTY__BIND_FUN_SHIFT)
461 a_TTY_BIND_FUN_ ## N = a_TTY_BIND_FUN_EXPAND(I),
464 a_X(GO_BWD
, 1) a_X(GO_FWD
, 2)
465 a_X(GO_WORD_BWD
, 3) a_X(GO_WORD_FWD
, 4)
466 a_X(GO_HOME
, 5) a_X(GO_END
, 6)
467 a_X(DEL_BWD
, 7) a_X(DEL_FWD
, 8)
468 a_X(SNARF_WORD_BWD
, 9) a_X(SNARF_WORD_FWD
, 10)
469 a_X(SNARF_END
, 11) a_X(SNARF_LINE
, 12)
470 a_X(HIST_BWD
, 13) a_X(HIST_FWD
, 14)
471 a_X(HIST_SRCH_BWD
, 15) a_X(HIST_SRCH_FWD
, 16)
473 a_X(QUOTE_RNDTRIP
, 18)
481 a_X(COMMIT
, 25) /* Must be last one! */
484 a_TTY__BIND_LAST
= 1<<25
486 # ifdef HAVE_KEY_BINDINGS
487 n_CTA((ui32_t
)a_TTY_BIND_RESOLVE
>= (ui32_t
)n__GO_INPUT_CTX_MAX1
,
488 "Bit carrier lower boundary must be raised to avoid value sharing");
490 n_CTA(a_TTY_BIND_FUN_EXPAND(a_TTY_BIND_FUN_COMMIT
) <
491 (1 << a_TTY__BIND_FUN_SHIFTMAX
),
492 "Bit carrier range must be expanded to represent necessary bits");
493 n_CTA(a_TTY__BIND_LAST
>= (1u << a_TTY__BIND_FUN_SHIFTMAX
),
494 "Bit carrier upper boundary must be raised to avoid value sharing");
495 n_CTA(UICMP(64, a_TTY__BIND_LAST
, <=, SI32_MAX
),
496 "Flag bits excess storage datatype" /* And we need one bit free */);
498 enum a_tty_fun_status
{
499 a_TTY_FUN_STATUS_OK
, /* Worked, next character */
500 a_TTY_FUN_STATUS_COMMIT
, /* Line done */
501 a_TTY_FUN_STATUS_RESTART
, /* Complete restart, reset multibyte etc. */
502 a_TTY_FUN_STATUS_END
/* End, return EOF */
505 enum a_tty_visual_flags
{
507 a_TTY_VF_MOD_CURSOR
= 1u<<0, /* Cursor moved */
508 a_TTY_VF_MOD_CONTENT
= 1u<<1, /* Content modified */
509 a_TTY_VF_MOD_DIRTY
= 1u<<2, /* Needs complete repaint */
510 a_TTY_VF_MOD_SINGLE
= 1u<<3, /* TODO Drop when indirection as above comes */
511 a_TTY_VF_REFRESH
= a_TTY_VF_MOD_DIRTY
| a_TTY_VF_MOD_CURSOR
|
512 a_TTY_VF_MOD_CONTENT
| a_TTY_VF_MOD_SINGLE
,
513 a_TTY_VF_BELL
= 1u<<8, /* Ring the bell */
514 a_TTY_VF_SYNC
= 1u<<9, /* Flush/Sync I/O channel */
516 a_TTY_VF_ALL_MASK
= a_TTY_VF_REFRESH
| a_TTY_VF_BELL
| a_TTY_VF_SYNC
,
517 a_TTY__VF_LAST
= a_TTY_VF_SYNC
520 # ifdef HAVE_KEY_BINDINGS
521 struct a_tty_bind_ctx
{
522 struct a_tty_bind_ctx
*tbc_next
;
523 char *tbc_seq
; /* quence as given (poss. re-quoted), in .tb__buf */
524 char *tbc_exp
; /* ansion, in .tb__buf */
525 /* The .tbc_seq'uence with any terminal capabilities resolved; in fact an
526 * array of structures, the first entry of which is {si32_t buf_len_iscap;}
527 * where the signed bit indicates whether the buffer is a resolved terminal
528 * capability instead of a (possibly multibyte) character. In .tbc__buf */
534 char tbc__buf
[n_VFIELD_SIZE(0)];
537 struct a_tty_bind_ctx_map
{
538 enum n_go_input_flags tbcm_ctx
;
539 char const tbcm_name
[12]; /* Name of `bind' context */
541 # endif /* HAVE_KEY_BINDINGS */
543 struct a_tty_bind_builtin_tuple
{
544 bool_t tbbt_iskey
; /* Whether this is a control key; else termcap query */
545 char tbbt_ckey
; /* Control code */
546 ui16_t tbbt_query
; /* enum n_termcap_query (instead) */
547 char tbbt_exp
[12]; /* String or [0]=NUL/[1]=BIND_FUN_REDUCE() */
549 n_CTA(n__TERMCAP_QUERY_MAX1
<= UI16_MAX
,
550 "Enumeration cannot be stored in datatype");
552 # ifdef HAVE_KEY_BINDINGS
553 struct a_tty_bind_parse_ctx
{
554 char const *tbpc_cmd
; /* Command which parses */
555 char const *tbpc_in_seq
; /* In: key sequence */
556 struct str tbpc_exp
; /* In/Out: expansion (or NULL) */
557 struct a_tty_bind_ctx
*tbpc_tbcp
; /* Out: if yet existent */
558 struct a_tty_bind_ctx
*tbpc_ltbcp
; /* Out: the one before .tbpc_tbcp */
559 char *tbpc_seq
; /* Out: normalized sequence */
560 char *tbpc_cnv
; /* Out: sequence when read(2)ing it */
563 ui32_t tbpc_cnv_align_mask
; /* For creating a_tty_bind_ctx.tbc_cnv */
564 ui32_t tbpc_flags
; /* n_go_input_flags | a_tty_bind_flags */
567 /* Input character tree */
568 struct a_tty_bind_tree
{
569 struct a_tty_bind_tree
*tbt_sibling
; /* s at same level */
570 struct a_tty_bind_tree
*tbt_childs
; /* Sequence continues.. here */
571 struct a_tty_bind_tree
*tbt_parent
;
572 struct a_tty_bind_ctx
*tbt_bind
; /* NULL for intermediates */
573 wchar_t tbt_char
; /* acter this level represents */
574 bool_t tbt_isseq
; /* Belongs to multibyte sequence */
575 bool_t tbt_isseq_trail
; /* ..is trailing byte of it */
578 # endif /* HAVE_KEY_BINDINGS */
582 ui16_t tc_count
; /* ..of bytes */
583 ui8_t tc_width
; /* Visual width; TAB==UI8_MAX! */
584 bool_t tc_novis
; /* Don't display visually as such (control character) */
585 char tc_cbuf
[MB_LEN_MAX
* 2]; /* .. plus reset shift sequence */
589 struct a_tty_line
*tg_line
; /* To be able to access it from signal hdl */
591 struct a_tty_hist
*tg_hist
;
592 struct a_tty_hist
*tg_hist_tail
;
594 size_t tg_hist_size_max
;
596 # ifdef HAVE_KEY_BINDINGS
597 ui32_t tg_bind_cnt
; /* Overall number of bindings */
598 bool_t tg_bind_isdirty
;
599 bool_t tg_bind_isbuild
;
600 # define a_TTY_SHCUT_MAX (3 +1) /* Note: update manual on change! */
601 ui8_t tg_bind__dummy
[2];
602 char tg_bind_shcut_cancel
[n__GO_INPUT_CTX_MAX1
][a_TTY_SHCUT_MAX
];
603 char tg_bind_shcut_prompt_char
[n__GO_INPUT_CTX_MAX1
][a_TTY_SHCUT_MAX
];
604 struct a_tty_bind_ctx
*tg_bind
[n__GO_INPUT_CTX_MAX1
];
605 struct a_tty_bind_tree
*tg_bind_tree
[n__GO_INPUT_CTX_MAX1
][HSHSIZE
];
607 struct termios tg_tios_old
;
608 struct termios tg_tios_new
;
610 # ifdef HAVE_KEY_BINDINGS
611 n_CTA(n__GO_INPUT_CTX_MAX1
== 3 && a_TTY_SHCUT_MAX
== 4 &&
612 n_SIZEOF_FIELD(struct a_tty_global
, tg_bind__dummy
) == 2,
613 "Value results in array sizes that results in bad structure layout");
614 n_CTA(a_TTY_SHCUT_MAX
> 1,
615 "Users need at least one shortcut, plus NUL terminator");
620 struct a_tty_hist
*th_older
;
621 struct a_tty_hist
*th_younger
;
622 ui32_t th_isgabby
: 1;
624 char th_dat
[n_VFIELD_SIZE(sizeof(ui32_t
))];
629 /* Caller pointers */
631 size_t *tl_x_bufsize
;
632 /* Input processing */
633 # ifdef HAVE_KEY_BINDINGS
634 wchar_t tl_bind_takeover
; /* Leftover byte to consume next */
635 ui8_t tl_bind_timeout
; /* In-seq. inter-byte-timer, in 1/10th secs */
636 ui8_t tl__bind_dummy
[3];
637 char (*tl_bind_shcut_cancel
)[a_TTY_SHCUT_MAX
]; /* Special _CANCEL control */
638 char (*tl_bind_shcut_prompt_char
)[a_TTY_SHCUT_MAX
]; /* ..for _PROMPT_CHAR */
639 struct a_tty_bind_tree
*(*tl_bind_tree_hmap
)[HSHSIZE
]; /* Bind lookup tree */
640 struct a_tty_bind_tree
*tl_bind_tree
;
642 /* Line data / content handling */
643 ui32_t tl_count
; /* ..of a_tty_cell's (<= a_TTY_LINE_MAX) */
644 ui32_t tl_cursor
; /* Current a_tty_cell insertion point */
646 char *cbuf
; /* *.tl_x_buf */
647 struct a_tty_cell
*cells
;
649 struct str tl_defc
; /* Current default content */
650 size_t tl_defc_cursor_byte
; /* Desired position of cursor after takeover */
651 struct str tl_savec
; /* Saved default content */
652 struct str tl_pastebuf
; /* Last snarfed data */
654 struct a_tty_hist
*tl_hist
; /* History cursor */
656 ui32_t tl_count_max
; /* ..before buffer needs to grow */
657 /* Visual data representation handling */
658 ui32_t tl_vi_flags
; /* enum a_tty_visual_flags */
659 ui32_t tl_lst_count
; /* .tl_count after last sync */
660 ui32_t tl_lst_cursor
; /* .tl_cursor after last sync */
661 /* TODO Add another indirection layer by adding a tl_phy_line of
662 * TODO a_tty_cell objects, incorporate changes in visual layer,
663 * TODO then check what _really_ has changed, sync those changes only */
664 struct a_tty_cell
const *tl_phy_start
; /* First visible cell, left border */
665 ui32_t tl_phy_cursor
; /* Physical cursor position */
666 bool_t tl_quote_rndtrip
; /* For _kht() expansion */
668 ui32_t tl_prompt_length
; /* Preclassified (TODO needed as a_tty_cell) */
669 ui32_t tl_prompt_width
;
670 char const *tl_prompt
; /* Preformatted prompt (including colours) */
671 /* .tl_pos_buf is a hack */
673 char *tl_pos_buf
; /* mle-position colour-on, [4], reset seq. */
674 char *tl_pos
; /* Address of the [4] */
678 # ifdef HAVE_KEY_BINDINGS
679 /* C99: use [INDEX]={} */
680 n_CTAV(n_GO_INPUT_CTX_BASE
== 0);
681 n_CTAV(n_GO_INPUT_CTX_DEFAULT
== 1);
682 n_CTAV(n_GO_INPUT_CTX_COMPOSE
== 2);
683 static struct a_tty_bind_ctx_map
const
684 a_tty_bind_ctx_maps
[n__GO_INPUT_CTX_MAX1
] = {
685 {n_GO_INPUT_CTX_BASE
, "base"},
686 {n_GO_INPUT_CTX_DEFAULT
, "default"},
687 {n_GO_INPUT_CTX_COMPOSE
, "compose"}
690 /* Special functions which our MLE provides internally.
691 * Update the manual upon change! */
692 static char const a_tty_bind_fun_names
[][24] = {
695 n_FIELD_INITI(a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## I)) "mle-" N "\0",
698 a_X(GO_BWD
, "go-bwd") a_X(GO_FWD
, "go-fwd")
699 a_X(GO_WORD_BWD
, "go-word-bwd") a_X(GO_WORD_FWD
, "go-word-fwd")
700 a_X(GO_HOME
, "go-home") a_X(GO_END
, "go-end")
701 a_X(DEL_BWD
, "del-bwd") a_X(DEL_FWD
, "del-fwd")
702 a_X(SNARF_WORD_BWD
, "snarf-word-bwd") a_X(SNARF_WORD_FWD
, "snarf-word-fwd")
703 a_X(SNARF_END
, "snarf-end") a_X(SNARF_LINE
, "snarf-line")
704 a_X(HIST_BWD
, "hist-bwd") a_X(HIST_FWD
, "hist-fwd")
705 a_X(HIST_SRCH_BWD
, "hist-srch-bwd") a_X(HIST_SRCH_FWD
, "hist-srch-fwd")
706 a_X(REPAINT
, "repaint")
707 a_X(QUOTE_RNDTRIP
, "quote-rndtrip")
708 a_X(PROMPT_CHAR
, "prompt-char")
709 a_X(COMPLETE
, "complete")
712 a_X(CANCEL
, "cancel")
714 a_X(FULLRESET
, "fullreset")
715 a_X(COMMIT
, "commit")
719 # endif /* HAVE_KEY_BINDINGS */
721 /* The default key bindings (unless disallowed). Update manual upon change!
722 * A logical subset of this table is also used if !HAVE_KEY_BINDINGS (more
723 * expensive than a switch() on control codes directly, but less redundant).
724 * The table for the "base" context */
725 static struct a_tty_bind_builtin_tuple
const a_tty_bind_base_tuples
[] = {
728 {TRU1, K, 0, {'\0', (char)a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## S),}},
746 a_X('Q', QUOTE_RNDTRIP
)
747 a_X('R', HIST_SRCH_BWD
)
748 a_X('S', HIST_SRCH_FWD
)
751 a_X('V', PROMPT_CHAR
)
752 a_X('W', SNARF_WORD_BWD
)
753 a_X('X', GO_WORD_FWD
)
754 a_X('Y', GO_WORD_BWD
)
761 a_X('_', SNARF_WORD_FWD
)
766 # define a_X(K,S) {TRU1, K, 0, {S}},
768 /* The remains only if we have `bind' functionality available */
769 # ifdef HAVE_KEY_BINDINGS
772 {FAL0, '\0', n_TERMCAP_QUERY_ ## Q,\
773 {'\0', (char)a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## S),}},
775 a_X(key_backspace
, DEL_BWD
) a_X(key_dc
, DEL_FWD
)
776 a_X(key_eol
, SNARF_END
)
777 a_X(key_home
, GO_HOME
) a_X(key_end
, GO_END
)
778 a_X(key_left
, GO_BWD
) a_X(key_right
, GO_FWD
)
779 a_X(key_sleft
, GO_HOME
) a_X(key_sright
, GO_END
)
780 a_X(key_up
, HIST_BWD
) a_X(key_down
, HIST_FWD
)
781 # endif /* HAVE_KEY_BINDINGS */
784 /* The table for the "default" context */
785 static struct a_tty_bind_builtin_tuple
const a_tty_bind_default_tuples
[] = {
788 {TRU1, K, 0, {'\0', (char)a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## S),}},
791 # define a_X(K,S) {TRU1, K, 0, {S}},
799 /* The remains only if we have `bind' functionality available */
800 # ifdef HAVE_KEY_BINDINGS
802 # define a_X(Q,S) {FAL0, '\0', n_TERMCAP_QUERY_ ## Q, {S}},
804 a_X(key_shome
, "z0") a_X(key_send
, "z$")
805 a_X(xkey_sup
, "z0") a_X(xkey_sdown
, "z$")
806 a_X(key_ppage
, "z-") a_X(key_npage
, "z+")
807 a_X(xkey_cup
, "dotmove-") a_X(xkey_cdown
, "dotmove+")
808 # endif /* HAVE_KEY_BINDINGS */
812 static struct a_tty_global a_tty
;
814 /* Change from canonical to raw, non-canonical mode, and way back */
815 static void a_tty_term_mode(bool_t raw
);
817 /* Initialize .tg_hist_size_max and return desired history file, or NULL */
819 static char const *a_tty_hist_query_config(void);
822 /* Adjust an active raw mode to use / not use a timeout */
823 # ifdef HAVE_KEY_BINDINGS
824 static void a_tty_term_rawmode_timeout(struct a_tty_line
*tlp
, bool_t enable
);
827 /* 0-X (2), UI8_MAX == \t / TAB */
828 static ui8_t
a_tty_wcwidth(wchar_t wc
);
830 /* Memory / cell / word generics */
831 static void a_tty_check_grow(struct a_tty_line
*tlp
, ui32_t no
832 n_MEMORY_DEBUG_ARGS
);
833 static ssize_t
a_tty_cell2dat(struct a_tty_line
*tlp
);
834 static void a_tty_cell2save(struct a_tty_line
*tlp
);
836 /* Save away data bytes of given range (max = non-inclusive) */
837 static void a_tty_copy2paste(struct a_tty_line
*tlp
, struct a_tty_cell
*tcpmin
,
838 struct a_tty_cell
*tcpmax
);
840 /* Ask user for hexadecimal number, interpret as UTF-32 */
841 static wchar_t a_tty_vinuni(struct a_tty_line
*tlp
);
843 /* Visual screen synchronization */
844 static bool_t
a_tty_vi_refresh(struct a_tty_line
*tlp
);
846 static bool_t
a_tty_vi__paint(struct a_tty_line
*tlp
);
848 /* Search for word boundary, starting at tl_cursor, in "dir"ection (<> 0).
849 * Return <0 when moving is impossible (backward direction but in position 0,
850 * forward direction but in outermost column), and relative distance to
851 * tl_cursor otherwise */
852 static si32_t
a_tty_wboundary(struct a_tty_line
*tlp
, si32_t dir
);
854 /* Most function implementations */
855 static void a_tty_khome(struct a_tty_line
*tlp
, bool_t dobell
);
856 static void a_tty_kend(struct a_tty_line
*tlp
);
857 static void a_tty_kbs(struct a_tty_line
*tlp
);
858 static void a_tty_ksnarf(struct a_tty_line
*tlp
, bool_t cplline
, bool_t dobell
);
859 static si32_t
a_tty_kdel(struct a_tty_line
*tlp
);
860 static void a_tty_kleft(struct a_tty_line
*tlp
);
861 static void a_tty_kright(struct a_tty_line
*tlp
);
862 static void a_tty_ksnarfw(struct a_tty_line
*tlp
, bool_t fwd
);
863 static void a_tty_kgow(struct a_tty_line
*tlp
, si32_t dir
);
864 static bool_t
a_tty_kother(struct a_tty_line
*tlp
, wchar_t wc
);
865 static ui32_t
a_tty_kht(struct a_tty_line
*tlp
);
868 /* Return UI32_MAX on "exhaustion" */
869 static ui32_t
a_tty_khist(struct a_tty_line
*tlp
, bool_t fwd
);
870 static ui32_t
a_tty_khist_search(struct a_tty_line
*tlp
, bool_t fwd
);
872 static ui32_t
a_tty__khist_shared(struct a_tty_line
*tlp
,
873 struct a_tty_hist
*thp
);
876 /* Handle a function */
877 static enum a_tty_fun_status
a_tty_fun(struct a_tty_line
*tlp
,
878 enum a_tty_bind_flags tbf
, size_t *len
);
881 static ssize_t
a_tty_readline(struct a_tty_line
*tlp
, size_t len
,
882 bool_t
*histok_or_null n_MEMORY_DEBUG_ARGS
);
884 # ifdef HAVE_KEY_BINDINGS
885 /* Find context or -1 */
886 static enum n_go_input_flags
a_tty_bind_ctx_find(char const *name
);
888 /* Create (or replace, if allowed) a binding */
889 static bool_t
a_tty_bind_create(struct a_tty_bind_parse_ctx
*tbpcp
,
892 /* Shared implementation to parse `bind' and `unbind' "key-sequence" and
893 * "expansion" command line arguments into something that we can work with */
894 static bool_t
a_tty_bind_parse(bool_t isbindcmd
,
895 struct a_tty_bind_parse_ctx
*tbpcp
);
897 /* Lazy resolve a termcap(5)/terminfo(5) (or *termcap*!) capability */
898 static void a_tty_bind_resolve(struct a_tty_bind_ctx
*tbcp
);
900 /* Delete an existing binding */
901 static void a_tty_bind_del(struct a_tty_bind_parse_ctx
*tbpcp
);
903 /* Life cycle of all input node trees */
904 static void a_tty_bind_tree_build(void);
905 static void a_tty_bind_tree_teardown(void);
907 static void a_tty__bind_tree_add(ui32_t hmap_idx
,
908 struct a_tty_bind_tree
*store
[HSHSIZE
],
909 struct a_tty_bind_ctx
*tbcp
);
910 static struct a_tty_bind_tree
*a_tty__bind_tree_add_wc(
911 struct a_tty_bind_tree
**treep
, struct a_tty_bind_tree
*parentp
,
912 wchar_t wc
, bool_t isseq
);
913 static void a_tty__bind_tree_free(struct a_tty_bind_tree
*tbtp
);
914 # endif /* HAVE_KEY_BINDINGS */
917 a_tty_term_mode(bool_t raw
){
918 struct termios
*tiosp
;
921 tiosp
= &a_tty
.tg_tios_old
;
925 /* Always requery the attributes, in case we've been moved from background
926 * to foreground or however else in between sessions */
927 /* XXX Always enforce ECHO and ICANON in the OLD attributes - do so as long
928 * XXX as we don't properly deal with TTIN and TTOU etc. */
929 tcgetattr(STDIN_FILENO
, tiosp
); /* TODO v15: use _only_ n_tty_fp! */
930 tiosp
->c_lflag
|= ECHO
| ICANON
;
932 memcpy(&a_tty
.tg_tios_new
, tiosp
, sizeof *tiosp
);
933 tiosp
= &a_tty
.tg_tios_new
;
934 tiosp
->c_cc
[VMIN
] = 1;
935 tiosp
->c_cc
[VTIME
] = 0;
936 /* Enable ^\, ^Q and ^S to be used for key bindings */
937 tiosp
->c_cc
[VQUIT
] = tiosp
->c_cc
[VSTART
] = tiosp
->c_cc
[VSTOP
] = '\0';
938 tiosp
->c_iflag
&= ~(ISTRIP
| IGNCR
);
939 tiosp
->c_lflag
&= ~(ECHO
/*| ECHOE | ECHONL */| ICANON
| IEXTEN
);
941 tcsetattr(STDIN_FILENO
, TCSADRAIN
, tiosp
);
947 a_tty_hist_query_config(void){
951 if((cp
= ok_vlook(NAIL_HISTSIZE
)) != NULL
)
952 n_OBSOLETE(_("please use *history-size* instead of *NAIL_HISTSIZE*"));
953 if((rv
= ok_vlook(history_size
)) == NULL
)
956 a_tty
.tg_hist_size_max
= UIZ_MAX
;
958 (void)n_idec_uiz_cp(&a_tty
.tg_hist_size_max
, rv
, 10, NULL
);
960 if((cp
= ok_vlook(NAIL_HISTFILE
)) != NULL
)
961 n_OBSOLETE(_("please use *history-file* instead of *NAIL_HISTFILE*"));
962 if((rv
= ok_vlook(history_file
)) == NULL
)
965 rv
= fexpand(rv
, FEXP_LOCAL
| FEXP_NSHELL
);
969 # endif /* HAVE_HISTORY */
971 # ifdef HAVE_KEY_BINDINGS
973 a_tty_term_rawmode_timeout(struct a_tty_line
*tlp
, bool_t enable
){
978 a_tty
.tg_tios_new
.c_cc
[VMIN
] = 0;
979 if((bt
= tlp
->tl_bind_timeout
) == 0)
980 bt
= a_TTY_BIND_TIMEOUT
;
981 a_tty
.tg_tios_new
.c_cc
[VTIME
] = bt
;
983 a_tty
.tg_tios_new
.c_cc
[VMIN
] = 1;
984 a_tty
.tg_tios_new
.c_cc
[VTIME
] = 0;
986 tcsetattr(STDIN_FILENO
, TCSANOW
, &a_tty
.tg_tios_new
);
989 # endif /* HAVE_KEY_BINDINGS */
992 a_tty_wcwidth(wchar_t wc
){
996 /* Special case the reverse solidus at first */
1002 # ifdef HAVE_WCWIDTH
1003 rv
= ((i
= wcwidth(wc
)) > 0) ? (ui8_t
)i
: 0;
1005 rv
= iswprint(wc
) ? 1 + (wc
>= 0x1100u
) : 0; /* TODO use S-CText */
1013 a_tty_check_grow(struct a_tty_line
*tlp
, ui32_t no n_MEMORY_DEBUG_ARGS
){
1017 if(n_UNLIKELY((cmax
= tlp
->tl_count
+ no
) > tlp
->tl_count_max
)){
1020 i
= cmax
* sizeof(struct a_tty_cell
) + 2 * sizeof(struct a_tty_cell
);
1021 if(n_LIKELY(i
>= *tlp
->tl_x_bufsize
)){
1022 hold_all_sigs(); /* XXX v15 drop */
1025 *tlp
->tl_x_buf
= (n_realloc
)(*tlp
->tl_x_buf
, i
1026 n_MEMORY_DEBUG_ARGSCALL
);
1027 rele_all_sigs(); /* XXX v15 drop */
1029 tlp
->tl_count_max
= cmax
;
1030 *tlp
->tl_x_bufsize
= i
;
1036 a_tty_cell2dat(struct a_tty_line
*tlp
){
1042 if(n_LIKELY((i
= tlp
->tl_count
) > 0)){
1043 struct a_tty_cell
const *tcap
;
1045 tcap
= tlp
->tl_line
.cells
;
1047 memcpy(tlp
->tl_line
.cbuf
+ len
, tcap
->tc_cbuf
, tcap
->tc_count
);
1048 len
+= tcap
->tc_count
;
1049 }while(++tcap
, --i
> 0);
1052 tlp
->tl_line
.cbuf
[len
] = '\0';
1054 return (ssize_t
)len
;
1058 a_tty_cell2save(struct a_tty_line
*tlp
){
1060 struct a_tty_cell
*tcap
;
1063 tlp
->tl_savec
.s
= NULL
;
1064 tlp
->tl_savec
.l
= 0;
1066 if(n_UNLIKELY(tlp
->tl_count
== 0))
1069 for(tcap
= tlp
->tl_line
.cells
, len
= 0, i
= tlp
->tl_count
; i
> 0;
1071 len
+= tcap
->tc_count
;
1073 tlp
->tl_savec
.s
= salloc((tlp
->tl_savec
.l
= len
) +1);
1075 for(tcap
= tlp
->tl_line
.cells
, len
= 0, i
= tlp
->tl_count
; i
> 0;
1077 memcpy(tlp
->tl_savec
.s
+ len
, tcap
->tc_cbuf
, tcap
->tc_count
);
1078 len
+= tcap
->tc_count
;
1080 tlp
->tl_savec
.s
[len
] = '\0';
1086 a_tty_copy2paste(struct a_tty_line
*tlp
, struct a_tty_cell
*tcpmin
,
1087 struct a_tty_cell
*tcpmax
){
1089 struct a_tty_cell
*tcp
;
1094 for(tcp
= tcpmin
; tcp
< tcpmax
; ++tcp
)
1097 tlp
->tl_pastebuf
.s
= cp
= salloc((tlp
->tl_pastebuf
.l
= l
) +1);
1099 for(tcp
= tcpmin
; tcp
< tcpmax
; cp
+= l
, ++tcp
)
1100 memcpy(cp
, tcp
->tc_cbuf
, l
= tcp
->tc_count
);
1106 a_tty_vinuni(struct a_tty_line
*tlp
){
1114 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
) ||
1115 !n_termcap_cmd(n_TERMCAP_CMD_ce
, 0, -1))
1119 struct str
const *cpre
, *csuf
;
1123 if(n_COLOUR_IS_ACTIVE()){
1124 struct n_colour_pen
*cpen
;
1126 cpen
= n_colour_pen_create(n_COLOUR_ID_MLE_PROMPT
, NULL
);
1127 if((cpre
= n_colour_pen_to_str(cpen
)) != NULL
)
1128 csuf
= n_colour_reset_to_str();
1131 fprintf(n_tty_fp
, _("%sPlease enter Unicode code point:%s "),
1132 (cpre
!= NULL
? cpre
->s
: n_empty
),
1133 (csuf
!= NULL
? csuf
->s
: n_empty
));
1137 buf
[sizeof(buf
) -1] = '\0';
1139 if(read(STDIN_FILENO
, &buf
[i
], 1) != 1){
1140 if(n_err_no
== n_ERR_INTR
) /* xxx #if !SA_RESTART ? */
1146 if(!hexchar(buf
[i
])){
1147 char const emsg
[] = "[0-9a-fA-F]";
1149 n_LCTA(sizeof emsg
<= sizeof(buf
), "Preallocated buffer too small");
1150 memcpy(buf
, emsg
, sizeof emsg
);
1154 putc(buf
[i
], n_tty_fp
);
1156 if(++i
== sizeof buf
)
1161 if((n_idec_uiz_cp(&i
, buf
, 16, NULL
1162 ) & (n_IDEC_STATE_EMASK
| n_IDEC_STATE_CONSUMED
)
1163 ) != n_IDEC_STATE_CONSUMED
|| i
> 0x10FFFF/* XXX magic; CText */){
1165 n_err(_("\nInvalid input: %s\n"), buf
);
1171 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
| (wc
== '\0' ? a_TTY_VF_BELL
: 0);
1177 a_tty_vi_refresh(struct a_tty_line
*tlp
){
1181 if(tlp
->tl_vi_flags
& a_TTY_VF_BELL
){
1182 tlp
->tl_vi_flags
|= a_TTY_VF_SYNC
;
1183 if(putc('\a', n_tty_fp
) == EOF
)
1187 if(tlp
->tl_vi_flags
& a_TTY_VF_REFRESH
){
1188 /* kht may want to restore a cursor position after inserting some
1190 if(tlp
->tl_defc_cursor_byte
> 0){
1194 a_tty_khome(tlp
, FAL0
);
1196 i
= tlp
->tl_defc_cursor_byte
;
1197 tlp
->tl_defc_cursor_byte
= 0;
1198 for(j
= 0; tlp
->tl_cursor
< tlp
->tl_count
; ++j
){
1200 if((k
= tlp
->tl_line
.cells
[j
].tc_count
) > i
)
1206 if(!a_tty_vi__paint(tlp
))
1210 if(tlp
->tl_vi_flags
& a_TTY_VF_SYNC
){
1211 tlp
->tl_vi_flags
&= ~a_TTY_VF_SYNC
;
1212 if(fflush(n_tty_fp
))
1218 tlp
->tl_vi_flags
&= ~a_TTY_VF_ALL_MASK
;
1223 clearerr(n_tty_fp
); /* xxx I/O layer rewrite */
1224 n_err(_("Visual refresh failed! Is $TERM set correctly?\n"
1225 " Setting *line-editor-disable* to get us through!\n"));
1226 ok_bset(line_editor_disable
);
1232 a_tty_vi__paint(struct a_tty_line
*tlp
){
1234 a_TRUE_RV
= a_TTY__VF_LAST
<<1, /* Return value bit */
1235 a_HAVE_PROMPT
= a_TTY__VF_LAST
<<2, /* Have a prompt */
1236 a_SHOW_PROMPT
= a_TTY__VF_LAST
<<3, /* Shall print the prompt */
1237 a_MOVE_CURSOR
= a_TTY__VF_LAST
<<4, /* Move visual cursor for user! */
1238 a_LEFT_MIN
= a_TTY__VF_LAST
<<5, /* On left boundary */
1239 a_RIGHT_MAX
= a_TTY__VF_LAST
<<6,
1240 a_HAVE_POSITION
= a_TTY__VF_LAST
<<7, /* Print the position indicator */
1242 /* We carry some flags over invocations (not worth a specific field) */
1243 a_VISIBLE_PROMPT
= a_TTY__VF_LAST
<<8, /* The prompt is on the screen */
1244 a_PERSIST_MASK
= a_VISIBLE_PROMPT
,
1245 a__LAST
= a_PERSIST_MASK
1248 ui32_t f
, w
, phy_wid_base
, phy_wid
, phy_base
, phy_cur
, cnt
,
1249 DBG(lstcur COMMA
) cur
,
1250 vi_left
, /*vi_right,*/ phy_nxtcur
;
1251 struct a_tty_cell
const *tccp
, *tcp_left
, *tcp_right
, *tcxp
;
1253 n_LCTA(UICMP(64, a__LAST
, <, UI32_MAX
), "Flag bits excess storage datatype");
1255 f
= tlp
->tl_vi_flags
;
1256 tlp
->tl_vi_flags
= (f
& ~(a_TTY_VF_REFRESH
| a_PERSIST_MASK
)) |
1259 if((w
= tlp
->tl_prompt_width
) > 0)
1261 f
|= a_HAVE_POSITION
;
1263 /* XXX We don't have a OnTerminalResize event (see main.c) yet, so we need
1264 * XXX to reevaluate our circumstances over and over again */
1265 /* Don't display prompt or position indicator on very small screens */
1266 if((phy_wid_base
= (ui32_t
)n_scrnwidth
) <= a_TTY_WIDTH_RIPOFF
)
1267 f
&= ~(a_HAVE_PROMPT
| a_HAVE_POSITION
);
1269 phy_wid_base
-= a_TTY_WIDTH_RIPOFF
;
1271 /* Disable the prompt if the screen is too small; due to lack of some
1272 * indicator simply add a second ripoff */
1273 if((f
& a_HAVE_PROMPT
) && w
+ a_TTY_WIDTH_RIPOFF
>= phy_wid_base
)
1274 f
&= ~a_HAVE_PROMPT
;
1277 phy_wid
= phy_wid_base
;
1279 phy_cur
= tlp
->tl_phy_cursor
;
1280 cnt
= tlp
->tl_count
;
1281 DBG( lstcur
= tlp
->tl_lst_cursor
; )
1283 /* XXX Assume dirty screen if shrunk */
1284 if(cnt
< tlp
->tl_lst_count
)
1285 f
|= a_TTY_VF_MOD_DIRTY
;
1287 /* TODO Without HAVE_TERMCAP, it would likely be much cheaper to simply
1288 * TODO always "cr + paint + ce + ch", since ce is simulated via spaces.. */
1290 /* Quickshot: if the line is empty, possibly print prompt and out */
1292 /* In that special case dirty anything if it seems better */
1293 if((f
& a_TTY_VF_MOD_CONTENT
) || tlp
->tl_lst_count
> 0)
1294 f
|= a_TTY_VF_MOD_DIRTY
;
1296 if((f
& a_TTY_VF_MOD_DIRTY
) && phy_cur
!= 0){
1297 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
))
1302 if((f
& (a_TTY_VF_MOD_DIRTY
| a_HAVE_PROMPT
)) ==
1303 (a_TTY_VF_MOD_DIRTY
| a_HAVE_PROMPT
)){
1304 if(fputs(tlp
->tl_prompt
, n_tty_fp
) == EOF
)
1306 phy_cur
= tlp
->tl_prompt_width
+ 1;
1309 /* May need to clear former line content */
1310 if((f
& a_TTY_VF_MOD_DIRTY
) &&
1311 !n_termcap_cmd(n_TERMCAP_CMD_ce
, phy_cur
, -1))
1314 tlp
->tl_phy_start
= tlp
->tl_line
.cells
;
1318 /* Try to get an idea of the visual window */
1320 /* Find the left visual boundary */
1321 phy_wid
= (phy_wid
>> 1) + (phy_wid
>> 2);
1322 if((cur
= tlp
->tl_cursor
) == cnt
)
1325 w
= (tcp_left
= tccp
= tlp
->tl_line
.cells
+ cur
)->tc_width
;
1326 if(w
== UI8_MAX
) /* TODO yet TAB == SPC */
1328 while(tcp_left
> tlp
->tl_line
.cells
){
1329 ui16_t cw
= tcp_left
[-1].tc_width
;
1331 if(cw
== UI8_MAX
) /* TODO yet TAB == SPC */
1333 if(w
+ cw
>= phy_wid
)
1340 /* If the left hand side of our visual viewpoint consumes less than half
1341 * of the screen width, show the prompt */
1342 if(tcp_left
== tlp
->tl_line
.cells
)
1345 if((f
& (a_LEFT_MIN
| a_HAVE_PROMPT
)) == (a_LEFT_MIN
| a_HAVE_PROMPT
) &&
1346 w
+ tlp
->tl_prompt_width
< phy_wid
){
1347 phy_base
= tlp
->tl_prompt_width
;
1351 /* Then search for right boundary. We always leave the rightmost column
1352 * empty because some terminals [cw]ould wrap the line if we write into
1353 * that. XXX terminfo(5)/termcap(5) have the semi_auto_right_margin/sam/YE
1354 * XXX capability to indicate this, but we don't look at that */
1355 phy_wid
= phy_wid_base
- phy_base
;
1356 tcp_right
= tlp
->tl_line
.cells
+ cnt
;
1358 while(&tccp
[1] < tcp_right
){
1359 ui16_t cw
= tccp
[1].tc_width
;
1362 if(cw
== UI8_MAX
) /* TODO yet TAB == SPC */
1370 /*vi_right = w - vi_left;*/
1372 /* If the complete line including prompt fits on the screen, show prompt */
1373 if(--tcp_right
== tccp
){
1376 /* Since we did brute-force walk also for the left boundary we may end up
1377 * in a situation were anything effectively fits on the screen, including
1378 * the prompt that is, but were we don't recognize this since we
1379 * restricted the search to fit in some visual viewpoint. Therefore try
1380 * again to extend the left boundary to overcome that */
1381 if(!(f
& a_LEFT_MIN
)){
1382 struct a_tty_cell
const *tc1p
= tlp
->tl_line
.cells
;
1383 ui32_t vil1
= vi_left
;
1385 assert(!(f
& a_SHOW_PROMPT
));
1386 w
+= tlp
->tl_prompt_width
;
1387 for(tcxp
= tcp_left
;;){
1388 ui32_t i
= tcxp
[-1].tc_width
;
1390 if(i
== UI8_MAX
) /* TODO yet TAB == SPC */
1404 /*w -= tlp->tl_prompt_width;*/
1408 tccp
= tlp
->tl_line
.cells
+ cur
;
1410 if((f
& (a_LEFT_MIN
| a_RIGHT_MAX
| a_HAVE_PROMPT
| a_SHOW_PROMPT
)) ==
1411 (a_LEFT_MIN
| a_RIGHT_MAX
| a_HAVE_PROMPT
) &&
1412 w
+ tlp
->tl_prompt_width
<= phy_wid
){
1413 phy_wid
-= (phy_base
= tlp
->tl_prompt_width
);
1417 /* Try to avoid repainting the complete line - this is possible if the
1418 * cursor "did not leave the screen" and the prompt status hasn't changed.
1419 * I.e., after clamping virtual viewpoint, compare relation to physical */
1420 if((f
& (a_TTY_VF_MOD_SINGLE
/*FIXME*/ |
1421 a_TTY_VF_MOD_CONTENT
/* xxx */ | a_TTY_VF_MOD_DIRTY
)) ||
1422 (tcxp
= tlp
->tl_phy_start
) == NULL
||
1423 tcxp
> tccp
|| tcxp
<= tcp_right
)
1424 f
|= a_TTY_VF_MOD_DIRTY
;
1426 f
|= a_TTY_VF_MOD_DIRTY
;
1428 struct a_tty_cell
const *tcyp
;
1429 si32_t cur_displace
;
1430 ui32_t phy_lmargin
, phy_rmargin
, fx
, phy_displace
;
1432 phy_lmargin
= (fx
= phy_wid
) / 100;
1433 phy_rmargin
= fx
- (phy_lmargin
* a_TTY_SCROLL_MARGIN_RIGHT
);
1434 phy_lmargin
*= a_TTY_SCROLL_MARGIN_LEFT
;
1435 fx
= (f
& (a_SHOW_PROMPT
| a_VISIBLE_PROMPT
));
1437 if(fx
== 0 || fx
== (a_SHOW_PROMPT
| a_VISIBLE_PROMPT
)){
1443 /* We know what we have to paint, start synchronizing */
1445 assert(phy_cur
== tlp
->tl_phy_cursor
);
1446 assert(phy_wid
== phy_wid_base
- phy_base
);
1447 assert(cnt
== tlp
->tl_count
);
1449 assert(lstcur
== tlp
->tl_lst_cursor
);
1450 assert(tccp
== tlp
->tl_line
.cells
+ cur
);
1452 phy_nxtcur
= phy_base
; /* FIXME only if repaint cpl. */
1454 /* Quickshot: is it only cursor movement within the visible screen? */
1455 if((f
& a_TTY_VF_REFRESH
) == a_TTY_VF_MOD_CURSOR
){
1460 /* To be able to apply some quick jump offs, clear line if possible */
1461 if(f
& a_TTY_VF_MOD_DIRTY
){
1462 /* Force complete clearance and cursor reinitialization */
1463 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
) ||
1464 !n_termcap_cmd(n_TERMCAP_CMD_ce
, 0, -1))
1466 tlp
->tl_phy_start
= tcp_left
;
1470 if((f
& (a_TTY_VF_MOD_DIRTY
| a_SHOW_PROMPT
)) && phy_cur
!= 0){
1471 if(!n_termcap_cmdx(n_TERMCAP_CMD_cr
))
1476 if(f
& a_SHOW_PROMPT
){
1477 assert(phy_base
== tlp
->tl_prompt_width
);
1478 if(fputs(tlp
->tl_prompt
, n_tty_fp
) == EOF
)
1480 phy_cur
= phy_nxtcur
;
1481 f
|= a_VISIBLE_PROMPT
;
1483 f
&= ~a_VISIBLE_PROMPT
;
1485 /* FIXME reposition cursor for paint */
1486 for(w
= phy_nxtcur
; tcp_left
<= tcp_right
; ++tcp_left
){
1489 cw
= tcp_left
->tc_width
;
1491 if(n_LIKELY(!tcp_left
->tc_novis
)){
1492 if(fwrite(tcp_left
->tc_cbuf
, sizeof *tcp_left
->tc_cbuf
,
1493 tcp_left
->tc_count
, n_tty_fp
) != tcp_left
->tc_count
)
1495 }else{ /* XXX Shouldn't be here <-> CText, ui_str.c */
1496 char wbuf
[8]; /* XXX magic */
1498 if(n_psonce
& n_PSO_UNICODE
){
1501 wc
= (ui32_t
)tcp_left
->tc_wc
;
1502 if((wc
& ~0x1Fu
) == 0)
1508 n_utf32_to_utf8(wc
, wbuf
);
1510 wbuf
[0] = '?', wbuf
[1] = '\0';
1512 if(fputs(wbuf
, n_tty_fp
) == EOF
)
1517 if(cw
== UI8_MAX
) /* TODO yet TAB == SPC */
1520 if(tcp_left
== tccp
)
1525 /* Write something position marker alike if it does not fit on screen */
1526 if((f
& a_HAVE_POSITION
) &&
1527 ((f
& (a_LEFT_MIN
| a_RIGHT_MAX
)) != (a_LEFT_MIN
| a_RIGHT_MAX
) ||
1528 ((f
& a_HAVE_PROMPT
) && !(f
& a_SHOW_PROMPT
)))){
1530 char *posbuf
= tlp
->tl_pos_buf
, *pos
= tlp
->tl_pos
;
1532 char posbuf
[5], *pos
= posbuf
;
1537 if(phy_cur
!= (w
= phy_wid_base
) &&
1538 !n_termcap_cmd(n_TERMCAP_CMD_ch
, phy_cur
= w
, 0))
1542 if((f
& a_LEFT_MIN
) && (!(f
& a_HAVE_PROMPT
) || (f
& a_SHOW_PROMPT
)))
1543 memcpy(pos
, "^.+", 3);
1544 else if(f
& a_RIGHT_MAX
)
1545 memcpy(pos
, ".+$", 3);
1547 /* Theoretical line length limit a_TTY_LINE_MAX, choose next power of
1548 * ten (10 ** 10) to represent 100 percent, since we don't have a macro
1549 * that generates a constant, and i don't trust the standard "u type
1550 * suffix automatically scales" calculate the large number */
1551 static char const itoa
[] = "0123456789";
1553 ui64_t
const fact100
= (ui64_t
)0x3B9ACA00u
* 10u, fact
= fact100
/ 100;
1554 ui32_t i
= (ui32_t
)(((fact100
/ cnt
) * tlp
->tl_cursor
) / fact
);
1555 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
1558 pos
[0] = ' ', pos
[1] = itoa
[i
];
1560 pos
[1] = itoa
[i
% 10], pos
[0] = itoa
[i
/ 10];
1564 if(fputs(posbuf
, n_tty_fp
) == EOF
)
1569 /* Users are used to see the cursor right of the point of interest, so we
1570 * need some further adjustments unless in special conditions. Be aware
1571 * that we may have adjusted cur at the beginning, too */
1572 if((cur
= tlp
->tl_cursor
) == 0)
1573 phy_nxtcur
= phy_base
;
1574 else if(cur
!= cnt
){
1575 ui16_t cw
= tccp
->tc_width
;
1577 if(cw
== UI8_MAX
) /* TODO yet TAB == SPC */
1583 if(((f
& a_MOVE_CURSOR
) || phy_nxtcur
!= phy_cur
) &&
1584 !n_termcap_cmd(n_TERMCAP_CMD_ch
, phy_cur
= phy_nxtcur
, 0))
1588 tlp
->tl_vi_flags
|= (f
& a_PERSIST_MASK
);
1589 tlp
->tl_lst_count
= tlp
->tl_count
;
1590 tlp
->tl_lst_cursor
= tlp
->tl_cursor
;
1591 tlp
->tl_phy_cursor
= phy_cur
;
1594 return ((f
& a_TRUE_RV
) != 0);
1601 a_tty_wboundary(struct a_tty_line
*tlp
, si32_t dir
){/* TODO shell token-wise */
1603 struct a_tty_cell
*tcap
;
1608 assert(dir
== 1 || dir
== -1);
1611 cnt
= tlp
->tl_count
;
1612 cur
= tlp
->tl_cursor
;
1617 }else if(cur
+ 1 >= cnt
)
1620 --cnt
, --cur
; /* xxx Unsigned wrapping may occur (twice), then */
1622 for(rv
= 0, tcap
= tlp
->tl_line
.cells
, anynon
= FAL0
;;){
1625 wc
= tcap
[cur
+= (ui32_t
)dir
].tc_wc
;
1626 if(iswblank(wc
) || iswpunct(wc
)){
1637 }else if(cur
+ 1 >= cnt
){
1648 a_tty_khome(struct a_tty_line
*tlp
, bool_t dobell
){
1652 if(n_LIKELY(tlp
->tl_cursor
> 0)){
1654 f
= a_TTY_VF_MOD_CURSOR
;
1660 tlp
->tl_vi_flags
|= f
;
1665 a_tty_kend(struct a_tty_line
*tlp
){
1669 if(n_LIKELY(tlp
->tl_cursor
< tlp
->tl_count
)){
1670 tlp
->tl_cursor
= tlp
->tl_count
;
1671 f
= a_TTY_VF_MOD_CURSOR
;
1675 tlp
->tl_vi_flags
|= f
;
1680 a_tty_kbs(struct a_tty_line
*tlp
){
1684 cur
= tlp
->tl_cursor
;
1685 cnt
= tlp
->tl_count
;
1687 if(n_LIKELY(cur
> 0)){
1688 tlp
->tl_cursor
= --cur
;
1689 tlp
->tl_count
= --cnt
;
1691 if((cnt
-= cur
) > 0){
1692 struct a_tty_cell
*tcap
;
1694 tcap
= tlp
->tl_line
.cells
+ cur
;
1695 memmove(tcap
, &tcap
[1], cnt
*= sizeof(*tcap
));
1697 f
= a_TTY_VF_MOD_CURSOR
| a_TTY_VF_MOD_CONTENT
;
1701 tlp
->tl_vi_flags
|= f
;
1706 a_tty_ksnarf(struct a_tty_line
*tlp
, bool_t cplline
, bool_t dobell
){
1713 if(cplline
&& i
> 0){
1714 tlp
->tl_cursor
= i
= 0;
1715 f
= a_TTY_VF_MOD_CURSOR
;
1718 if(n_LIKELY(i
< tlp
->tl_count
)){
1719 struct a_tty_cell
*tcap
;
1721 tcap
= &tlp
->tl_line
.cells
[0];
1722 a_tty_copy2paste(tlp
, &tcap
[i
], &tcap
[tlp
->tl_count
]);
1724 f
= a_TTY_VF_MOD_CONTENT
;
1728 tlp
->tl_vi_flags
|= f
;
1733 a_tty_kdel(struct a_tty_line
*tlp
){
1738 cur
= tlp
->tl_cursor
;
1739 cnt
= tlp
->tl_count
;
1740 i
= (si32_t
)(cnt
- cur
);
1742 if(n_LIKELY(i
> 0)){
1743 tlp
->tl_count
= --cnt
;
1745 if(n_LIKELY(--i
> 0)){
1746 struct a_tty_cell
*tcap
;
1748 tcap
= &tlp
->tl_line
.cells
[cur
];
1749 memmove(tcap
, &tcap
[1], (ui32_t
)i
* sizeof(*tcap
));
1751 f
= a_TTY_VF_MOD_CONTENT
;
1752 }else if(cnt
== 0 && !ok_blook(ignoreeof
)){
1753 putc('^', n_tty_fp
);
1754 putc('D', n_tty_fp
);
1762 tlp
->tl_vi_flags
|= f
;
1768 a_tty_kleft(struct a_tty_line
*tlp
){
1772 if(n_LIKELY(tlp
->tl_cursor
> 0)){
1774 f
= a_TTY_VF_MOD_CURSOR
;
1778 tlp
->tl_vi_flags
|= f
;
1783 a_tty_kright(struct a_tty_line
*tlp
){
1787 if(n_LIKELY((i
= tlp
->tl_cursor
+ 1) <= tlp
->tl_count
)){
1789 i
= a_TTY_VF_MOD_CURSOR
;
1793 tlp
->tl_vi_flags
|= i
;
1798 a_tty_ksnarfw(struct a_tty_line
*tlp
, bool_t fwd
){
1799 struct a_tty_cell
*tcap
;
1804 if(n_UNLIKELY((i
= a_tty_wboundary(tlp
, (fwd
? +1 : -1))) <= 0)){
1805 f
= (i
< 0) ? a_TTY_VF_BELL
: a_TTY_VF_NONE
;
1809 cnt
= tlp
->tl_count
- (ui32_t
)i
;
1810 cur
= tlp
->tl_cursor
;
1813 tcap
= &tlp
->tl_line
.cells
[cur
];
1815 a_tty_copy2paste(tlp
, &tcap
[0], &tcap
[i
]);
1817 if((tlp
->tl_count
= cnt
) != (tlp
->tl_cursor
= cur
)){
1819 memmove(&tcap
[0], &tcap
[i
], cnt
* sizeof(*tcap
)); /* FIXME*/
1822 f
= a_TTY_VF_MOD_CURSOR
| a_TTY_VF_MOD_CONTENT
;
1824 tlp
->tl_vi_flags
|= f
;
1829 a_tty_kgow(struct a_tty_line
*tlp
, si32_t dir
){
1834 if(n_UNLIKELY((i
= a_tty_wboundary(tlp
, dir
)) <= 0))
1835 f
= (i
< 0) ? a_TTY_VF_BELL
: a_TTY_VF_NONE
;
1839 tlp
->tl_cursor
+= (ui32_t
)i
;
1840 f
= a_TTY_VF_MOD_CURSOR
;
1843 tlp
->tl_vi_flags
|= f
;
1848 a_tty_kother(struct a_tty_line
*tlp
, wchar_t wc
){
1849 /* Append if at EOL, insert otherwise;
1850 * since we may move around character-wise, always use a fresh ps */
1852 struct a_tty_cell tc
, *tcap
;
1860 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
1861 if(tlp
->tl_count
+ 1 >= a_TTY_LINE_MAX
){
1862 n_err(_("Stop here, we can't extend line beyond size limit\n"));
1866 /* First init a cell and see whether we'll really handle this wc */
1867 memset(&ps
, 0, sizeof ps
);
1871 l
= wcrtomb(tc
.tc_cbuf
, tc
.tc_wc
= wc
, &ps
);
1872 if(n_UNLIKELY(l
> MB_LEN_MAX
)){
1874 n_err(_("wcrtomb(3) error: too many multibyte character bytes\n"));
1877 tc
.tc_count
= (ui16_t
)l
;
1879 if(n_UNLIKELY((n_psonce
& n_PSO_ENC_MBSTATE
) != 0)){
1880 l
= wcrtomb(&tc
.tc_cbuf
[l
], L
'\0', &ps
);
1881 if(n_LIKELY(l
== 1))
1882 /* Only NUL terminator */;
1883 else if(n_LIKELY(--l
< MB_LEN_MAX
))
1884 tc
.tc_count
+= (ui16_t
)l
;
1890 /* Yes, we will! Place it in the array */
1891 tc
.tc_novis
= (iswprint(wc
) == 0);
1892 tc
.tc_width
= a_tty_wcwidth(wc
);
1893 /* TODO if(tc.tc_novis && tc.tc_width > 0) */
1895 cur
= tlp
->tl_cursor
++;
1896 cnt
= tlp
->tl_count
++ - cur
;
1897 tcap
= &tlp
->tl_line
.cells
[cur
];
1899 memmove(&tcap
[1], tcap
, cnt
* sizeof(*tcap
));
1900 f
= a_TTY_VF_MOD_CONTENT
;
1902 f
= a_TTY_VF_MOD_SINGLE
;
1903 memcpy(tcap
, &tc
, sizeof *tcap
);
1905 f
|= a_TTY_VF_MOD_CURSOR
;
1910 tlp
->tl_vi_flags
|= f
;
1916 a_tty_kht(struct a_tty_line
*tlp
){
1917 ui8_t (*mempool
)[n_MEMORY_POOL_TYPE_SIZEOF
], *mempool_persist
;
1919 struct str orig
, bot
, topp
, sub
, exp
, preexp
;
1920 struct n_string shou
, *shoup
;
1921 struct a_tty_cell
*ctop
, *cx
;
1922 bool_t wedid
, set_savec
;
1926 /* Get plain line data; if this is the first expansion/xy, update the
1927 * very original content so that ^G gets the origin back */
1928 orig
= tlp
->tl_savec
;
1929 a_tty_cell2save(tlp
);
1930 exp
= tlp
->tl_savec
;
1932 /*tlp->tl_savec = orig;*/
1938 mempool_persist
= n_go_data
->gdc_mempool
;
1939 n_memory_pool_push(mempool
= n_lofi_alloc(sizeof *mempool
));
1941 shoup
= n_string_creat_auto(&shou
);
1946 struct a_tty_cell
*cword
;
1948 /* Find the word to be expanded */
1949 cword
= tlp
->tl_line
.cells
;
1950 ctop
= &cword
[tlp
->tl_cursor
];
1951 cx
= &cword
[tlp
->tl_count
];
1953 /* topp: separate data right of cursor */
1955 for(rv
= 0; ctop
< cx
; ++ctop
)
1956 rv
+= ctop
->tc_count
;
1958 topp
.s
= orig
.s
+ orig
.l
- rv
;
1959 ctop
= cword
+ tlp
->tl_cursor
;
1961 topp
.s
= NULL
, topp
.l
= 0;
1963 /* Find the shell token that corresponds to the cursor position */
1966 for(; cword
< ctop
; ++cword
)
1967 max
+= cword
->tc_count
;
1975 enum n_shexp_state shs
;
1978 shs
= n_shexp_parse_token((n_SHEXP_PARSE_DRYRUN
|
1979 n_SHEXP_PARSE_TRIM_SPACE
| n_SHEXP_PARSE_IGNORE_EMPTY
|
1980 n_SHEXP_PARSE_QUOTE_AUTO_CLOSE
), NULL
, &sub
, NULL
);
1984 assert(max
>= sub
.l
);
1990 if(shs
& n_SHEXP_STATE_ERR_MASK
){
1991 n_err(_("Invalid completion pattern: %.*s\n"),
1997 /* All WS? Trailing WS that has been "jumped over"? */
1998 if(exp
.l
== 0 || (shs
& n_SHEXP_STATE_WS_TRAIL
))
2001 n_shexp_parse_token((n_SHEXP_PARSE_TRIM_SPACE
|
2002 n_SHEXP_PARSE_IGNORE_EMPTY
| n_SHEXP_PARSE_QUOTE_AUTO_CLOSE
),
2007 sub
.s
= n_string_cp(shoup
);
2008 sub
.l
= shoup
->s_len
;
2012 /* Leave room for "implicit asterisk" expansion, as below */
2014 sub
.s
= n_UNCONST(n_star
);
2015 sub
.l
= sizeof(n_star
) -1;
2018 preexp
.s
= n_UNCONST(n_empty
);
2019 preexp
.l
= sizeof(n_empty
) -1;
2022 /* TODO Super-Heavy-Metal: block all sigs, avoid leaks on jump */
2024 exp
.s
= fexpand(sub
.s
, a_TTY_TAB_FEXP_FL
);
2027 if(exp
.s
== NULL
|| (exp
.l
= strlen(exp
.s
)) == 0){
2028 /* No. But maybe the users' desire was to complete only a part of the
2029 * shell token of interest! TODO This can be improved, we would need to
2030 * TODO have shexp_parse to create a DOM structure of parsed snippets, so
2031 * TODO that we can tell for each snippet which quote is active and
2032 * TODO whether we may cross its boundary and/or apply expansion for it */
2037 for(li
= UIZ_MAX
, i
= sub
.l
; i
-- > 0;){
2040 if((c
= sub
.s
[i
]) == '/' || c
== '+' /* *folder*! */)
2042 /* Do stop once some "magic" characters are seen XXX magic set */
2043 else if(c
== '<' || c
== '>' || c
== '=' || c
== ':')
2057 if(wedid
== TRUM1
&& preexp
.l
> 0)
2058 preexp
.s
= savestrbuf(preexp
.s
, preexp
.l
);
2060 /* May be multi-return! */
2061 if(n_pstate
& n_PS_EXPAND_MULTIRESULT
)
2064 /* xxx That is not really true since the limit counts characters not bytes */
2065 n_LCTA(a_TTY_LINE_MAX
<= SI32_MAX
, "a_TTY_LINE_MAX too large");
2066 if(exp
.l
>= a_TTY_LINE_MAX
- 1 || a_TTY_LINE_MAX
- 1 - exp
.l
< preexp
.l
){
2067 n_err(_("Tabulator expansion would extend beyond line size limit\n"));
2072 /* If the expansion equals the original string, assume the user wants what
2073 * is usually known as tab completion, append `*' and restart */
2074 if(!wedid
&& exp
.l
== sub
.l
&& !memcmp(exp
.s
, sub
.s
, exp
.l
)){
2075 if(sub
.s
[sub
.l
- 1] == '*')
2079 shoup
= n_string_push_c(shoup
, '*');
2080 sub
.s
= n_string_cp(shoup
);
2081 sub
.l
= shoup
->s_len
;
2085 if(exp
.s
[exp
.l
- 1] != '/'){
2086 if(!stat(exp
.s
, &sb
) && S_ISDIR(sb
.st_mode
)){
2087 shoup
= n_string_assign_buf(shoup
, exp
.s
, exp
.l
);
2088 shoup
= n_string_push_c(shoup
, '/');
2089 exp
.s
= n_string_cp(shoup
);
2093 exp
.s
[exp
.l
] = '\0';
2096 exp
.l
= strlen(exp
.s
= n_shexp_quote_cp(exp
.s
, tlp
->tl_quote_rndtrip
));
2097 tlp
->tl_defc_cursor_byte
= bot
.l
+ preexp
.l
+ exp
.l
-1;
2099 orig
.l
= bot
.l
+ preexp
.l
+ exp
.l
+ topp
.l
;
2100 orig
.s
= n_autorec_alloc_from_pool(mempool_persist
, orig
.l
+ 5 +1);
2101 if((rv
= (ui32_t
)bot
.l
) > 0)
2102 memcpy(orig
.s
, bot
.s
, rv
);
2104 memcpy(&orig
.s
[rv
], preexp
.s
, preexp
.l
);
2107 memcpy(&orig
.s
[rv
], exp
.s
, exp
.l
);
2110 memcpy(&orig
.s
[rv
], topp
.s
, topp
.l
);
2115 tlp
->tl_defc
= orig
;
2116 tlp
->tl_count
= tlp
->tl_cursor
= 0;
2117 f
|= a_TTY_VF_MOD_DIRTY
;
2119 n_memory_pool_pop(mempool
);
2120 n_lofi_free(mempool
);
2121 tlp
->tl_vi_flags
|= f
;
2126 struct n_visual_info_ctx vic
;
2131 size_t locolen
, scrwid
, lnlen
, lncnt
, prefixlen
;
2134 if((fp
= Ftmp(NULL
, "tabex", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
2135 n_perr(_("tmpfile"), 0);
2139 /* How long is the result string for real? Search the NUL NUL
2140 * terminator. While here, detect the longest entry to perform an
2141 * initial allocation of our accumulator string */
2146 i
= strlen(&exp
.s
[++exp
.l
]);
2147 locolen
= n_MAX(locolen
, i
);
2149 }while(exp
.s
[exp
.l
+ 1] != '\0');
2151 shoup
= n_string_reserve(n_string_trunc(shoup
, 0),
2152 locolen
+ (locolen
>> 1));
2154 /* Iterate (once again) over all results */
2155 scrwid
= n_SCRNWIDTH_FOR_LISTS
;
2157 n_UNINIT(prefixlen
, 0);
2158 n_UNINIT(lococp
, NULL
);
2160 for(isfirst
= TRU1
; exp
.l
> 0; isfirst
= FAL0
, c1
= c2
){
2162 char const *fullpath
;
2166 sub
.l
= i
= strlen(sub
.s
);
2168 if((exp
.l
-= i
) > 0)
2172 /* Separate dirname and basename */
2177 if((cp
= strrchr(fullpath
, '/')) != NULL
)
2178 prefixlen
= PTR2SIZE(++cp
- fullpath
);
2182 if(prefixlen
> 0 && prefixlen
< sub
.l
){
2187 /* We want case-insensitive sort-order */
2188 memset(&vic
, 0, sizeof vic
);
2189 vic
.vic_indat
= sub
.s
;
2190 vic
.vic_inlen
= sub
.l
;
2191 c2
= n_visual_info(&vic
, n_VISUAL_INFO_ONE_CHAR
) ? vic
.vic_waccu
2193 #ifdef HAVE_C90AMEND1
2199 /* Query longest common prefix along the way */
2204 }else if(locolen
> 0){
2205 for(i
= 0; i
< locolen
; ++i
)
2206 if(lococp
[i
] != sub
.s
[i
]){
2207 i
= field_detect_clip(i
, lococp
, i
);
2213 /* Prepare display */
2215 shoup
= n_shexp_quote(n_string_trunc(shoup
, 0), &input
,
2216 tlp
->tl_quote_rndtrip
);
2217 memset(&vic
, 0, sizeof vic
);
2218 vic
.vic_indat
= shoup
->s_dat
;
2219 vic
.vic_inlen
= shoup
->s_len
;
2220 if(!n_visual_info(&vic
,
2221 n_VISUAL_INFO_SKIP_ERRORS
| n_VISUAL_INFO_WIDTH_QUERY
))
2222 vic
.vic_vi_width
= shoup
->s_len
;
2224 /* Put on screen. Indent follow lines of same sort slot.
2225 * Leave enough room for filename tagging */
2226 if((c1
= (c1
!= c2
))){
2227 #ifdef HAVE_C90AMEND1
2228 c1
= (iswalnum(c2
) != 0);
2230 c1
= (alnumchar(c2
) != 0);
2234 scrwid
< lnlen
|| scrwid
- lnlen
<= vic
.vic_vi_width
+ 2){
2241 }else if(lnlen
> 0){
2246 fputs(n_string_cp(shoup
), fp
);
2247 lnlen
+= vic
.vic_vi_width
;
2249 /* Support the known filename tagging
2250 * XXX *line-editor-completion-filetype* or so */
2251 if(!lstat(fullpath
, &sb
)){
2254 if(S_ISDIR(sb
.st_mode
))
2256 else if(S_ISLNK(sb
.st_mode
))
2259 else if(S_ISFIFO(sb
.st_mode
))
2263 else if(S_ISSOCK(sb
.st_mode
))
2267 else if(S_ISCHR(sb
.st_mode
))
2271 else if(S_ISBLK(sb
.st_mode
))
2284 page_or_print(fp
, lncnt
);
2288 n_string_gut(shoup
);
2290 /* A common prefix of 0 means we cannot provide the user any auto
2291 * completed characters for the multiple possible results.
2292 * Otherwise we can, so extend the visual line content by the common
2293 * prefix (in a reversible way) */
2294 f
|= a_TTY_VF_BELL
; /* XXX -> *line-editor-completion-bell*? or so */
2296 (exp
.s
= n_UNCONST(lococp
))[locolen
] = '\0';
2298 exp
.l
= (locolen
+= prefixlen
);
2304 /* If we've provided a default content, but failed to expand, there is
2305 * nothing we can "revert to": drop that default again */
2307 tlp
->tl_savec
.s
= NULL
;
2308 tlp
->tl_savec
.l
= 0;
2310 f
&= a_TTY_VF_BELL
; /* XXX -> *line-editor-completion-bell*? or so */
2315 # ifdef HAVE_HISTORY
2317 a_tty__khist_shared(struct a_tty_line
*tlp
, struct a_tty_hist
*thp
){
2321 if(n_LIKELY((tlp
->tl_hist
= thp
) != NULL
)){
2322 tlp
->tl_defc
.s
= savestrbuf(thp
->th_dat
, thp
->th_len
);
2323 rv
= tlp
->tl_defc
.l
= thp
->th_len
;
2324 f
= (tlp
->tl_count
> 0) ? a_TTY_VF_MOD_DIRTY
: a_TTY_VF_NONE
;
2325 tlp
->tl_count
= tlp
->tl_cursor
= 0;
2331 tlp
->tl_vi_flags
|= f
;
2337 a_tty_khist(struct a_tty_line
*tlp
, bool_t fwd
){
2338 struct a_tty_hist
*thp
;
2342 /* If we're not in history mode yet, save line content */
2343 if((thp
= tlp
->tl_hist
) == NULL
){
2344 a_tty_cell2save(tlp
);
2345 if((thp
= a_tty
.tg_hist
) == NULL
)
2348 while(thp
->th_older
!= NULL
)
2349 thp
= thp
->th_older
;
2353 thp
= fwd
? thp
->th_younger
: thp
->th_older
;
2355 rv
= a_tty__khist_shared(tlp
, thp
);
2361 a_tty_khist_search(struct a_tty_line
*tlp
, bool_t fwd
){
2362 struct str orig_savec
;
2363 struct a_tty_hist
*thp
;
2369 /* We cannot complete an empty line */
2370 if(n_UNLIKELY(tlp
->tl_count
== 0)){
2371 /* XXX The upcoming hard reset would restore a set savec buffer,
2372 * XXX so forcefully reset that. A cleaner solution would be to
2373 * XXX reset it whenever a restore is no longer desired */
2374 tlp
->tl_savec
.s
= NULL
;
2375 tlp
->tl_savec
.l
= 0;
2379 if((thp
= tlp
->tl_hist
) == NULL
){
2380 a_tty_cell2save(tlp
);
2381 if((thp
= a_tty
.tg_hist
) == NULL
) /* TODO Should end "doing nothing"! */
2384 while(thp
->th_older
!= NULL
)
2385 thp
= thp
->th_older
;
2386 orig_savec
.s
= NULL
;
2387 orig_savec
.l
= 0; /* silence CC */
2388 }else if((thp
= (fwd
? thp
->th_younger
: thp
->th_older
)) == NULL
)
2391 orig_savec
= tlp
->tl_savec
;
2393 if(orig_savec
.s
== NULL
)
2394 a_tty_cell2save(tlp
);
2396 for(; thp
!= NULL
; thp
= (fwd
? thp
->th_younger
: thp
->th_older
))
2397 if(is_prefix(tlp
->tl_savec
.s
, thp
->th_dat
))
2400 if(orig_savec
.s
!= NULL
)
2401 tlp
->tl_savec
= orig_savec
;
2403 rv
= a_tty__khist_shared(tlp
, thp
);
2407 # endif /* HAVE_HISTORY */
2409 static enum a_tty_fun_status
2410 a_tty_fun(struct a_tty_line
*tlp
, enum a_tty_bind_flags tbf
, size_t *len
){
2411 enum a_tty_fun_status rv
;
2414 rv
= a_TTY_FUN_STATUS_OK
;
2416 # define a_X(N) a_TTY_BIND_FUN_REDUCE(a_TTY_BIND_FUN_ ## N)
2417 switch(a_TTY_BIND_FUN_REDUCE(tbf
)){
2419 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2427 case a_X(GO_WORD_BWD
):
2428 a_tty_kgow(tlp
, -1);
2430 case a_X(GO_WORD_FWD
):
2431 a_tty_kgow(tlp
, +1);
2434 a_tty_khome(tlp
, TRU1
);
2443 if(a_tty_kdel(tlp
) < 0)
2444 rv
= a_TTY_FUN_STATUS_END
;
2446 case a_X(SNARF_WORD_BWD
):
2447 a_tty_ksnarfw(tlp
, FAL0
);
2449 case a_X(SNARF_WORD_FWD
):
2450 a_tty_ksnarfw(tlp
, TRU1
);
2452 case a_X(SNARF_END
):
2453 a_tty_ksnarf(tlp
, FAL0
, TRU1
);
2455 case a_X(SNARF_LINE
):
2456 a_tty_ksnarf(tlp
, TRU1
, (tlp
->tl_count
== 0));
2459 case a_X(HIST_FWD
):{
2460 # ifdef HAVE_HISTORY
2461 bool_t isfwd
= TRU1
;
2467 # ifdef HAVE_HISTORY
2470 if((*len
= a_tty_khist(tlp
, isfwd
)) != UI32_MAX
){
2471 rv
= a_TTY_FUN_STATUS_RESTART
;
2477 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2480 case a_X(HIST_SRCH_FWD
):{
2481 # ifdef HAVE_HISTORY
2482 bool_t isfwd
= TRU1
;
2487 case a_X(HIST_SRCH_BWD
):
2488 # ifdef HAVE_HISTORY
2491 if((*len
= a_tty_khist_search(tlp
, isfwd
)) != UI32_MAX
){
2492 rv
= a_TTY_FUN_STATUS_RESTART
;
2497 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2502 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
2504 case a_X(QUOTE_RNDTRIP
):
2505 tlp
->tl_quote_rndtrip
= !tlp
->tl_quote_rndtrip
;
2507 case a_X(PROMPT_CHAR
):{
2510 if((wc
= a_tty_vinuni(tlp
)) > 0)
2511 a_tty_kother(tlp
, wc
);
2514 if((*len
= a_tty_kht(tlp
)) > 0)
2515 rv
= a_TTY_FUN_STATUS_RESTART
;
2519 if(tlp
->tl_pastebuf
.l
> 0)
2520 *len
= (tlp
->tl_defc
= tlp
->tl_pastebuf
).l
;
2522 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2527 /* Normally this just causes a restart and thus resets the state
2529 if(tlp
->tl_savec
.l
== 0 && tlp
->tl_defc
.l
== 0){
2531 # ifdef HAVE_KEY_BINDINGS
2532 tlp
->tl_bind_takeover
= '\0';
2534 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2535 rv
= a_TTY_FUN_STATUS_RESTART
;
2539 if(tlp
->tl_count
== 0 && tlp
->tl_savec
.l
== 0 && tlp
->tl_defc
.l
== 0){
2540 # ifdef HAVE_KEY_BINDINGS
2541 tlp
->tl_bind_takeover
= '\0';
2543 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
| a_TTY_VF_BELL
;
2546 case a_X(FULLRESET
):
2547 tlp
->tl_savec
.s
= tlp
->tl_defc
.s
= NULL
;
2548 tlp
->tl_savec
.l
= tlp
->tl_defc
.l
= 0;
2549 tlp
->tl_defc_cursor_byte
= 0;
2550 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2553 # ifdef HAVE_KEY_BINDINGS
2554 tlp
->tl_bind_takeover
= '\0';
2556 tlp
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
2557 tlp
->tl_cursor
= tlp
->tl_count
= 0;
2558 # ifdef HAVE_HISTORY
2559 tlp
->tl_hist
= NULL
;
2561 if((*len
= tlp
->tl_savec
.l
) != 0){
2562 tlp
->tl_defc
= tlp
->tl_savec
;
2563 tlp
->tl_savec
.s
= NULL
;
2564 tlp
->tl_savec
.l
= 0;
2566 *len
= tlp
->tl_defc
.l
;
2567 rv
= a_TTY_FUN_STATUS_RESTART
;
2572 rv
= a_TTY_FUN_STATUS_COMMIT
;
2582 a_tty_readline(struct a_tty_line
*tlp
, size_t len
, bool_t
*histok_or_null
2583 n_MEMORY_DEBUG_ARGS
){
2584 /* We want to save code, yet we may have to incorporate a lines'
2585 * default content and / or default input to switch back to after some
2586 * history movement; let "len > 0" mean "have to display some data
2587 * buffer" -> a_BUFMODE, and only otherwise read(2) it */
2589 char cbuf_base
[MB_LEN_MAX
* 2], *cbuf
, *cbufp
;
2591 struct a_tty_bind_tree
*tbtp
;
2593 enum a_tty_bind_flags tbf
;
2594 enum {a_NONE
, a_WAS_HERE
= 1<<0, a_BUFMODE
= 1<<1, a_MAYBEFUN
= 1<<2,
2595 a_TIMEOUT
= 1<<3, a_TIMEOUT_EXPIRED
= 1<<4,
2596 a_TIMEOUT_MASK
= a_TIMEOUT
| a_TIMEOUT_EXPIRED
,
2597 a_READ_LOOP_MASK
= ~(a_WAS_HERE
| a_MAYBEFUN
| a_TIMEOUT_MASK
)
2602 # ifdef HAVE_KEY_BINDINGS
2603 assert(tlp
->tl_bind_takeover
== '\0');
2606 memset(ps
, 0, sizeof ps
);
2608 tlp
->tl_vi_flags
|= a_TTY_VF_REFRESH
| a_TTY_VF_SYNC
;
2615 /* Ensure we have valid pointers, and room for grow */
2616 a_tty_check_grow(tlp
, ((flags
& a_BUFMODE
) ? (ui32_t
)len
: 1)
2617 n_MEMORY_DEBUG_ARGSCALL
);
2619 /* Handle visual state flags, except in buffer mode */
2620 if(!(flags
& a_BUFMODE
) && (tlp
->tl_vi_flags
& a_TTY_VF_ALL_MASK
))
2621 if(!a_tty_vi_refresh(tlp
)){
2626 /* Ready for messing around.
2627 * Normal read(2)? Else buffer mode: speed this one up */
2628 if(!(flags
& a_BUFMODE
)){
2632 assert(tlp
->tl_defc
.l
> 0 && tlp
->tl_defc
.s
!= NULL
);
2633 assert(tlp
->tl_defc
.l
>= len
);
2635 cbuf
= tlp
->tl_defc
.s
+ (tlp
->tl_defc
.l
- len
);
2639 /* Read in the next complete multibyte character */
2641 # ifdef HAVE_KEY_BINDINGS
2642 struct a_tty_bind_tree
*xtbtp
;
2646 struct a_tty_bind_tree
*tbtp
;
2649 isp_head
= isp
= NULL
;
2652 for(flags
&= a_READ_LOOP_MASK
;;){
2653 # ifdef HAVE_KEY_BINDINGS
2654 if(!(flags
& a_BUFMODE
) && tlp
->tl_bind_takeover
!= '\0'){
2655 wc
= tlp
->tl_bind_takeover
;
2656 tlp
->tl_bind_takeover
= '\0';
2660 if(!(flags
& a_BUFMODE
)){
2661 /* Let me at least once dream of iomon(itor), timer with
2662 * one-shot, enwrapped with key_event and key_sequence_event,
2663 * all driven by an event_loop */
2664 /* TODO v15 Until we have SysV signal handling all through we
2665 * TODO need to temporarily adjust our BSD signal handler with
2666 * TODO a SysV one, here */
2667 n_sighdl_t otstp
, ottin
, ottou
;
2669 otstp
= n_signal(SIGTSTP
, &n_tty_signal
);
2670 ottin
= n_signal(SIGTTIN
, &n_tty_signal
);
2671 ottou
= n_signal(SIGTTOU
, &n_tty_signal
);
2672 # ifdef HAVE_KEY_BINDINGS
2673 flags
&= ~a_TIMEOUT_MASK
;
2674 if(isp
!= NULL
&& (tbtp
= isp
->tbtp
)->tbt_isseq
&&
2675 !tbtp
->tbt_isseq_trail
){
2676 a_tty_term_rawmode_timeout(tlp
, TRU1
);
2681 while((rv
= read(STDIN_FILENO
, cbufp
, 1)) < 1){
2683 if(n_err_no
== n_ERR_INTR
){
2684 if((tlp
->tl_vi_flags
& a_TTY_VF_MOD_DIRTY
) &&
2685 !a_tty_vi_refresh(tlp
))
2692 # ifdef HAVE_KEY_BINDINGS
2693 /* Timeout expiration */
2695 assert(flags
& a_TIMEOUT
);
2696 assert(isp
!= NULL
);
2697 a_tty_term_rawmode_timeout(tlp
, FAL0
);
2699 /* Something "atomic" broke. Maybe the current one can
2700 * also be terminated already, by itself? xxx really? */
2701 if((tbtp
= isp
->tbtp
)->tbt_bind
!= NULL
){
2702 tlp
->tl_bind_takeover
= wc
;
2706 /* Or, maybe there is a second path without a timeout;
2707 * this should be covered by .tbt_isseq_trail, but then
2708 * again a single-layer implementation cannot "know" */
2709 for(xtbtp
= tbtp
; (xtbtp
= xtbtp
->tbt_sibling
) != NULL
;)
2710 if(xtbtp
->tbt_char
== tbtp
->tbt_char
){
2711 assert(!xtbtp
->tbt_isseq
);
2714 /* Lay down on read(2)? */
2719 # endif /* HAVE_KEY_BINDINGS */
2722 # ifdef HAVE_KEY_BINDINGS
2723 if(flags
& a_TIMEOUT
)
2724 a_tty_term_rawmode_timeout(tlp
, FAL0
);
2726 safe_signal(SIGTSTP
, otstp
);
2727 safe_signal(SIGTTIN
, ottin
);
2728 safe_signal(SIGTTOU
, ottou
);
2735 rv
= (ssize_t
)mbrtowc(&wc
, cbuf
, PTR2SIZE(cbufp
- cbuf
), &ps
[0]);
2737 /* Any error during buffer mode can only result in a hard
2738 * reset; Otherwise, if it's a hard error, or if too many
2739 * redundant shift sequences overflow our buffer: perform
2741 if((flags
& a_BUFMODE
) || rv
== -1 ||
2742 sizeof cbuf_base
== PTR2SIZE(cbufp
- cbuf
)){
2743 a_tty_fun(tlp
, a_TTY_BIND_FUN_FULLRESET
, &len
);
2746 /* Otherwise, due to the way we deal with the buffer, we need
2747 * to restore the mbstate_t from before this conversion */
2755 /* Normal read(2)ing is subject to detection of key-bindings */
2756 # ifdef HAVE_KEY_BINDINGS
2757 if(!(flags
& a_BUFMODE
)){
2758 /* Check for special bypass functions before we try to embed
2759 * this character into the tree */
2760 if(n_uasciichar(wc
)){
2764 for(c
= (char)wc
, cp
= &(*tlp
->tl_bind_shcut_prompt_char
)[0];
2767 wc
= a_tty_vinuni(tlp
);
2772 tlp
->tl_vi_flags
|= a_TTY_VF_BELL
;
2776 if(n_uasciichar(wc
))
2777 flags
|= a_MAYBEFUN
;
2779 flags
&= ~a_MAYBEFUN
;
2781 /* Search for this character in the bind tree */
2782 tbtp
= (isp
!= NULL
) ? isp
->tbtp
->tbt_childs
2783 : (*tlp
->tl_bind_tree_hmap
)[wc
% HSHSIZE
];
2784 for(; tbtp
!= NULL
; tbtp
= tbtp
->tbt_sibling
){
2785 if(tbtp
->tbt_char
== wc
){
2788 /* If this one cannot continue we're likely finished! */
2789 if(tbtp
->tbt_childs
== NULL
){
2790 assert(tbtp
->tbt_bind
!= NULL
);
2791 tbf
= tbtp
->tbt_bind
->tbc_flags
;
2795 /* This needs to read more characters */
2796 nisp
= salloc(sizeof *nisp
);
2797 if((nisp
->last
= isp
) == NULL
)
2804 flags
&= ~a_WAS_HERE
;
2811 /* Was there a binding active, but couldn't be continued? */
2813 /* A binding had a timeout, it didn't expire, but we saw
2814 * something non-expected. Something "atomic" broke.
2815 * Maybe there is a second path without a timeout, that
2816 * continues like we've seen it. I.e., it may just have been
2817 * the user, typing too fast. We definitely want to allow
2818 * bindings like \e,d etc. to succeed: users are so used to
2819 * them that a timeout cannot be the mechanism to catch up!
2820 * A single-layer implementation cannot "know" */
2821 if((tbtp
= isp
->tbtp
)->tbt_isseq
&& (isp
->last
== NULL
||
2822 !(xtbtp
= isp
->last
->tbtp
)->tbt_isseq
||
2823 xtbtp
->tbt_isseq_trail
)){
2824 for(xtbtp
= (tbtp
= isp
->tbtp
);
2825 (xtbtp
= xtbtp
->tbt_sibling
) != NULL
;)
2826 if(xtbtp
->tbt_char
== tbtp
->tbt_char
){
2827 assert(!xtbtp
->tbt_isseq
);
2832 tlp
->tl_bind_takeover
= wc
;
2837 /* Check for CANCEL shortcut now */
2838 if(flags
& a_MAYBEFUN
){
2842 for(c
= (char)wc
, cp
= &(*tlp
->tl_bind_shcut_cancel
)[0];
2845 tbf
= a_TTY_BIND_FUN_INTERNAL
|a_TTY_BIND_FUN_CANCEL
;
2850 /* So: maybe the current sequence can be terminated here? */
2851 if((tbtp
= isp
->tbtp
)->tbt_bind
!= NULL
){
2853 tbf
= tbtp
->tbt_bind
->tbc_flags
;
2855 if(tbf
& a_TTY_BIND_FUN_INTERNAL
){
2856 switch(a_tty_fun(tlp
, tbf
, &len
)){
2857 case a_TTY_FUN_STATUS_OK
:
2859 case a_TTY_FUN_STATUS_COMMIT
:
2861 case a_TTY_FUN_STATUS_RESTART
:
2863 case a_TTY_FUN_STATUS_END
:
2868 }else if(tbtp
->tbt_bind
->tbc_flags
& a_TTY_BIND_NOCOMMIT
){
2869 struct a_tty_bind_ctx
*tbcp
;
2871 tbcp
= tbtp
->tbt_bind
;
2872 memcpy(tlp
->tl_defc
.s
= salloc(
2873 (tlp
->tl_defc
.l
= len
= tbcp
->tbc_exp_len
) +1),
2874 tbcp
->tbc_exp
, tbcp
->tbc_exp_len
+1);
2877 cbufp
= tbtp
->tbt_bind
->tbc_exp
;
2883 /* Otherwise take over all chars "as is" */
2885 for(; isp_head
!= NULL
; isp_head
= isp_head
->next
)
2886 if(a_tty_kother(tlp
, isp_head
->tbtp
->tbt_char
)){
2889 /* And the current one too */
2892 # endif /* HAVE_KEY_BINDINGS */
2894 if((flags
& a_BUFMODE
) && (len
-= (size_t)rv
) == 0){
2895 /* Buffer mode completed */
2896 tlp
->tl_defc
.s
= NULL
;
2898 flags
&= ~a_BUFMODE
;
2903 # ifndef HAVE_KEY_BINDINGS
2904 /* Don't interpret control bytes during buffer mode.
2905 * Otherwise, if it's a control byte check whether it is a MLE
2906 * function. Remarks: initially a complete duplicate to be able to
2907 * switch(), later converted to simply iterate over (an #ifdef'd
2908 * subset of) the MLE base_tuple table in order to have "a SPOF" */
2909 if(cbuf
== cbuf_base
&& n_uasciichar(wc
) && cntrlchar((char)wc
)){
2910 struct a_tty_bind_builtin_tuple
const *tbbtp
, *tbbtp_max
;
2913 c
= (char)wc
^ 0x40;
2914 tbbtp
= a_tty_bind_base_tuples
;
2915 tbbtp_max
= &tbbtp
[n_NELEM(a_tty_bind_base_tuples
)];
2917 for(; tbbtp
< tbbtp_max
; ++tbbtp
){
2918 /* Assert default_tuple table is properly subset'ed */
2919 assert(tbbtp
->tbdt_iskey
);
2920 if(tbbtp
->tbbt_ckey
== c
){
2921 if(tbbtp
->tbbt_exp
[0] == '\0'){
2922 tbf
= a_TTY_BIND_FUN_EXPAND((ui8_t
)tbbtp
->tbbt_exp
[1]);
2923 switch(a_tty_fun(tlp
, tbf
, &len
)){
2924 case a_TTY_FUN_STATUS_OK
:
2926 case a_TTY_FUN_STATUS_COMMIT
:
2928 case a_TTY_FUN_STATUS_RESTART
:
2930 case a_TTY_FUN_STATUS_END
:
2936 cbufp
= tbbtp
->tbbt_exp
;
2942 &a_tty_bind_base_tuples
[n_NELEM(a_tty_bind_base_tuples
)]){
2943 tbbtp
= a_tty_bind_default_tuples
;
2944 tbbtp_max
= &tbbtp
[n_NELEM(a_tty_bind_default_tuples
)];
2948 # endif /* !HAVE_KEY_BINDINGS */
2950 # ifdef HAVE_KEY_BINDINGS
2953 if(a_tty_kother(tlp
, wc
)){
2954 /* Don't clear the history during buffer mode.. */
2955 # ifdef HAVE_HISTORY
2956 if(!(flags
& a_BUFMODE
) && cbuf
== cbuf_base
)
2957 tlp
->tl_hist
= NULL
;
2963 /* We have a completed input line, convert the struct cell data to its
2964 * plain character equivalent */
2966 rv
= a_tty_cell2dat(tlp
);
2968 putc('\n', n_tty_fp
);
2976 hold_all_sigs(); /* XXX v15 drop */
2977 i
= a_tty_cell2dat(tlp
);
2978 n_go_input_inject(n_GO_INPUT_INJECT_NONE
, tlp
->tl_line
.cbuf
, i
);
2979 i
= strlen(cbufp
) +1;
2980 if(i
>= *tlp
->tl_x_bufsize
){
2981 *tlp
->tl_x_buf
= (n_realloc
)(*tlp
->tl_x_buf
, i n_MEMORY_DEBUG_ARGSCALL
);
2982 *tlp
->tl_x_bufsize
= i
;
2984 memcpy(*tlp
->tl_x_buf
, cbufp
, i
);
2985 rele_all_sigs(); /* XXX v15 drop */
2986 if(histok_or_null
!= NULL
)
2987 *histok_or_null
= FAL0
;
2993 # ifdef HAVE_KEY_BINDINGS
2994 static enum n_go_input_flags
2995 a_tty_bind_ctx_find(char const *name
){
2996 enum n_go_input_flags rv
;
2997 struct a_tty_bind_ctx_map
const *tbcmp
;
3000 tbcmp
= a_tty_bind_ctx_maps
;
3001 do if(!asccasecmp(tbcmp
->tbcm_name
, name
)){
3002 rv
= tbcmp
->tbcm_ctx
;
3004 }while(PTRCMP(++tbcmp
, <,
3005 &a_tty_bind_ctx_maps
[n_NELEM(a_tty_bind_ctx_maps
)]));
3007 rv
= (enum n_go_input_flags
)-1;
3014 a_tty_bind_create(struct a_tty_bind_parse_ctx
*tbpcp
, bool_t replace
){
3015 struct a_tty_bind_ctx
*tbcp
;
3021 if(!a_tty_bind_parse(TRU1
, tbpcp
))
3024 /* Since we use a single buffer for it all, need to replace as such */
3025 if(tbpcp
->tbpc_tbcp
!= NULL
){
3028 a_tty_bind_del(tbpcp
);
3029 }else if(a_tty
.tg_bind_cnt
== UI32_MAX
){
3030 n_err(_("`bind': maximum number of bindings already established\n"));
3037 tbcp
= smalloc(n_VSTRUCT_SIZEOF(struct a_tty_bind_ctx
, tbc__buf
) +
3038 tbpcp
->tbpc_seq_len
+ tbpcp
->tbpc_exp
.l
+
3039 n_MAX(sizeof(si32_t
), sizeof(wc_t
)) + tbpcp
->tbpc_cnv_len
+3);
3040 if(tbpcp
->tbpc_ltbcp
!= NULL
){
3041 tbcp
->tbc_next
= tbpcp
->tbpc_ltbcp
->tbc_next
;
3042 tbpcp
->tbpc_ltbcp
->tbc_next
= tbcp
;
3044 enum n_go_input_flags gif
;
3046 gif
= tbpcp
->tbpc_flags
& n__GO_INPUT_CTX_MASK
;
3047 tbcp
->tbc_next
= a_tty
.tg_bind
[gif
];
3048 a_tty
.tg_bind
[gif
] = tbcp
;
3050 memcpy(tbcp
->tbc_seq
= &tbcp
->tbc__buf
[0],
3051 tbpcp
->tbpc_seq
, i
= (tbcp
->tbc_seq_len
= tbpcp
->tbpc_seq_len
) +1);
3052 memcpy(tbcp
->tbc_exp
= &tbcp
->tbc__buf
[i
],
3053 tbpcp
->tbpc_exp
.s
, j
= (tbcp
->tbc_exp_len
= tbpcp
->tbpc_exp
.l
) +1);
3055 i
= (i
+ tbpcp
->tbpc_cnv_align_mask
) & ~tbpcp
->tbpc_cnv_align_mask
;
3056 memcpy(tbcp
->tbc_cnv
= &tbcp
->tbc__buf
[i
],
3057 tbpcp
->tbpc_cnv
, (tbcp
->tbc_cnv_len
= tbpcp
->tbpc_cnv_len
) +1);
3058 tbcp
->tbc_flags
= tbpcp
->tbpc_flags
;
3061 /* Directly resolve any termcap(5) symbol if we are already setup */
3062 if((n_psonce
& n_PSO_STARTED
) &&
3063 (tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)) ==
3065 a_tty_bind_resolve(tbcp
);
3067 ++a_tty
.tg_bind_cnt
;
3068 /* If this binding is usable invalidate the key input lookup trees */
3069 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
3070 a_tty
.tg_bind_isdirty
= TRU1
;
3078 a_tty_bind_parse(bool_t isbindcmd
, struct a_tty_bind_parse_ctx
*tbpcp
){
3079 enum{a_TRUE_RV
= a_TTY__BIND_LAST
<<1};
3081 struct n_visual_info_ctx vic
;
3082 struct str shin_save
, shin
;
3083 struct n_string shou
, *shoup
;
3090 ui32_t cnv_len
; /* High bit set if a termap to be resolved */
3091 ui32_t calc_cnv_len
; /* Ditto, but aligned etc. */
3092 ui8_t kse__dummy
[4];
3096 n_LCTA(UICMP(64, a_TRUE_RV
, <, UI32_MAX
),
3097 "Flag bits excess storage datatype");
3099 f
= n_GO_INPUT_NONE
;
3100 shoup
= n_string_creat_auto(&shou
);
3103 /* Parse the key-sequence */
3104 for(shin
.s
= n_UNCONST(tbpcp
->tbpc_in_seq
), shin
.l
= UIZ_MAX
;;){
3106 enum n_shexp_state shs
;
3109 shs
= n_shexp_parse_token((n_SHEXP_PARSE_TRUNC
|
3110 n_SHEXP_PARSE_TRIM_SPACE
| n_SHEXP_PARSE_IGNORE_EMPTY
|
3111 n_SHEXP_PARSE_IFS_IS_COMMA
), shoup
, &shin
, NULL
);
3112 if(shs
& n_SHEXP_STATE_ERR_UNICODE
){
3113 f
|= a_TTY_BIND_DEFUNCT
;
3114 if(isbindcmd
&& (n_poption
& n_PO_D_V
))
3115 n_err(_("`%s': \\uNICODE not available in locale: %s\n"),
3116 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3118 if((shs
& n_SHEXP_STATE_ERR_MASK
) & ~n_SHEXP_STATE_ERR_UNICODE
){
3119 n_err(_("`%s': failed to parse key-sequence: %s\n"),
3120 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3123 if((shs
& (n_SHEXP_STATE_OUTPUT
| n_SHEXP_STATE_STOP
)) ==
3127 ep
= salloc(sizeof *ep
);
3134 if(!(shs
& n_SHEXP_STATE_ERR_UNICODE
)){
3135 i
= strlen(ep
->seq_dat
= n_shexp_quote_cp(n_string_cp(shoup
), TRU1
));
3136 if(i
>= SI32_MAX
- 1)
3138 ep
->seq_len
= (ui32_t
)i
;
3140 /* Otherwise use the original buffer, _we_ can only quote it the wrong
3141 * way (e.g., an initial $'\u3a' becomes '\u3a'), _then_ */
3142 if((i
= shin_save
.l
- shin
.l
) >= SI32_MAX
- 1)
3144 ep
->seq_len
= (ui32_t
)i
;
3145 ep
->seq_dat
= savestrbuf(shin_save
.s
, i
);
3148 memset(&vic
, 0, sizeof vic
);
3149 vic
.vic_inlen
= shoup
->s_len
;
3150 vic
.vic_indat
= shoup
->s_dat
;
3151 if(!n_visual_info(&vic
,
3152 n_VISUAL_INFO_WOUT_CREATE
| n_VISUAL_INFO_WOUT_SALLOC
)){
3153 n_err(_("`%s': key-sequence seems to contain invalid "
3154 "characters: %s: %s\n"),
3155 tbpcp
->tbpc_cmd
, n_string_cp(shoup
), tbpcp
->tbpc_in_seq
);
3156 f
|= a_TTY_BIND_DEFUNCT
;
3158 }else if(vic
.vic_woulen
== 0 ||
3159 vic
.vic_woulen
>= (SI32_MAX
- 2) / sizeof(wc_t
)){
3161 n_err(_("`%s': length of key-sequence unsupported: %s: %s\n"),
3162 tbpcp
->tbpc_cmd
, n_string_cp(shoup
), tbpcp
->tbpc_in_seq
);
3163 f
|= a_TTY_BIND_DEFUNCT
;
3166 ep
->cnv_dat
= vic
.vic_woudat
;
3167 ep
->cnv_len
= (ui32_t
)vic
.vic_woulen
;
3169 /* A termcap(5)/terminfo(5) identifier? */
3170 if(ep
->cnv_len
> 1 && ep
->cnv_dat
[0] == ':'){
3171 i
= --ep
->cnv_len
, ++ep
->cnv_dat
;
3172 # if 0 /* ndef HAVE_TERMCAP xxx User can, via *termcap*! */
3173 if(n_poption
& n_PO_D_V
)
3174 n_err(_("`%s': no termcap(5)/terminfo(5) support: %s: %s\n"),
3175 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
3176 f
|= a_TTY_BIND_DEFUNCT
;
3178 if(i
> a_TTY_BIND_CAPNAME_MAX
){
3179 n_err(_("`%s': termcap(5)/terminfo(5) name too long: %s: %s\n"),
3180 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
3181 f
|= a_TTY_BIND_DEFUNCT
;
3184 /* (We store it as char[]) */
3185 if((ui32_t
)ep
->cnv_dat
[--i
] & ~0x7Fu
){
3186 n_err(_("`%s': invalid termcap(5)/terminfo(5) name content: "
3188 tbpcp
->tbpc_cmd
, ep
->seq_dat
, tbpcp
->tbpc_in_seq
);
3189 f
|= a_TTY_BIND_DEFUNCT
;
3192 ep
->cnv_len
|= SI32_MIN
; /* Needs resolve */
3193 f
|= a_TTY_BIND_RESOLVE
;
3196 if(shs
& n_SHEXP_STATE_STOP
)
3202 n_err(_("`%s': effectively empty key-sequence: %s\n"),
3203 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3207 if(isbindcmd
) /* (Or always, just "1st time init") */
3208 tbpcp
->tbpc_cnv_align_mask
= n_MAX(sizeof(si32_t
), sizeof(wc_t
)) - 1;
3211 struct a_tty_bind_ctx
*ltbcp
, *tbcp
;
3212 char *cpbase
, *cp
, *cnv
;
3215 /* Unite the parsed sequence(s) into single string representations */
3216 for(sl
= cl
= 0, tail
= head
; tail
!= NULL
; tail
= tail
->next
){
3217 sl
+= tail
->seq_len
+ 1;
3222 /* Preserve room for terminal capabilities to be resolved.
3223 * Above we have ensured the buffer will fit in these calculations */
3224 if((i
= tail
->cnv_len
) & SI32_MIN
){
3226 * struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[]+NUL;}
3228 * struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;} */
3229 n_LCTAV(n_ISPOW2(a_TTY_BIND_CAPEXP_ROUNDUP
));
3230 n_LCTA(a_TTY_BIND_CAPEXP_ROUNDUP
>= sizeof(wc_t
),
3231 "Aligning on this constant does not properly align wc_t");
3234 i
+= sizeof(si32_t
);
3235 if(i
< a_TTY_BIND_CAPEXP_ROUNDUP
)
3236 i
= (i
+ (a_TTY_BIND_CAPEXP_ROUNDUP
- 1)) &
3237 ~(a_TTY_BIND_CAPEXP_ROUNDUP
- 1);
3239 /* struct{si32_t buf_len_iscap; wc_t buf[]+NUL;} */
3241 i
+= sizeof(si32_t
) + sizeof(wc_t
); /* (buf_len_iscap, NUL) */
3243 if(tail
->cnv_len
& SI32_MIN
){
3244 tail
->cnv_len
&= SI32_MAX
;
3247 tail
->calc_cnv_len
= (ui32_t
)i
;
3251 tbpcp
->tbpc_seq_len
= sl
;
3252 tbpcp
->tbpc_cnv_len
= cl
;
3256 j
= i
= sl
+ 1; /* Room for comma separator */
3258 i
= (i
+ tbpcp
->tbpc_cnv_align_mask
) & ~tbpcp
->tbpc_cnv_align_mask
;
3262 tbpcp
->tbpc_seq
= cp
= cpbase
= salloc(i
);
3263 tbpcp
->tbpc_cnv
= cnv
= &cpbase
[j
];
3266 for(tail
= head
; tail
!= NULL
; tail
= tail
->next
){
3267 memcpy(cp
, tail
->seq_dat
, tail
->seq_len
);
3268 cp
+= tail
->seq_len
;
3272 char * const save_cnv
= cnv
;
3274 n_UNALIGN(si32_t
*,cnv
)[0] = (si32_t
)(i
= tail
->calc_cnv_len
);
3275 cnv
+= sizeof(si32_t
);
3278 * struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[];}
3280 * struct{si32_t buf_len_iscap; si32_t cap_len; char buf[];} */
3281 n_UNALIGN(si32_t
*,cnv
)[0] = tail
->cnv_len
;
3282 cnv
+= sizeof(si32_t
);
3284 i
= tail
->cnv_len
* sizeof(wc_t
);
3285 memcpy(cnv
, tail
->cnv_dat
, i
);
3287 *n_UNALIGN(wc_t
*,cnv
) = '\0';
3289 cnv
= save_cnv
+ (tail
->calc_cnv_len
& SI32_MAX
);
3294 /* Search for a yet existing identical mapping */
3296 enum n_go_input_flags gif
;
3298 gif
= tbpcp
->tbpc_flags
& n__GO_INPUT_CTX_MASK
;
3300 for(ltbcp
= NULL
, tbcp
= a_tty
.tg_bind
[gif
]; tbcp
!= NULL
;
3301 ltbcp
= tbcp
, tbcp
= tbcp
->tbc_next
)
3302 if(tbcp
->tbc_seq_len
== sl
&& !memcmp(tbcp
->tbc_seq
, cpbase
, sl
)){
3303 tbpcp
->tbpc_tbcp
= tbcp
;
3307 tbpcp
->tbpc_ltbcp
= ltbcp
;
3308 tbpcp
->tbpc_flags
|= (f
& a_TTY__BIND_MASK
);
3311 /* Create single string expansion if so desired */
3315 exp
= tbpcp
->tbpc_exp
.s
;
3317 i
= tbpcp
->tbpc_exp
.l
;
3318 if(i
> 0 && exp
[i
- 1] == '@'){
3320 if(!blankspacechar(exp
[i
- 1]))
3326 exp
[tbpcp
->tbpc_exp
.l
= i
] = '\0';
3327 tbpcp
->tbpc_flags
|= a_TTY_BIND_NOCOMMIT
;
3330 /* Reverse solidus cannot be placed last in expansion to avoid (at the
3331 * time of this writing) possible problems with newline escaping.
3332 * Don't care about (un)even number thereof */
3333 if(i
> 0 && exp
[i
- 1] == '\\'){
3334 n_err(_("`%s': reverse solidus cannot be last in expansion: %s\n"),
3335 tbpcp
->tbpc_cmd
, tbpcp
->tbpc_in_seq
);
3339 /* It may map to an internal MLE command! */
3340 for(i
= 0; i
< n_NELEM(a_tty_bind_fun_names
); ++i
)
3341 if(!asccasecmp(exp
, a_tty_bind_fun_names
[i
])){
3342 tbpcp
->tbpc_flags
|= a_TTY_BIND_FUN_EXPAND(i
) |
3343 a_TTY_BIND_FUN_INTERNAL
|
3344 (head
->next
== NULL
? a_TTY_BIND_MLE1CNTRL
: 0);
3345 if((n_poption
& n_PO_D_V
) &&
3346 (tbpcp
->tbpc_flags
& a_TTY_BIND_NOCOMMIT
))
3347 n_err(_("`%s': MLE commands can't be made editable via @: %s\n"),
3348 tbpcp
->tbpc_cmd
, exp
);
3349 tbpcp
->tbpc_flags
&= ~a_TTY_BIND_NOCOMMIT
;
3354 f
|= a_TRUE_RV
; /* TODO because we only now true and false; DEFUNCT.. */
3356 n_string_gut(shoup
);
3358 return (f
& a_TRUE_RV
) != 0;
3362 a_tty_bind_resolve(struct a_tty_bind_ctx
*tbcp
){
3363 char capname
[a_TTY_BIND_CAPNAME_MAX
+1];
3364 struct n_termcap_value tv
;
3366 bool_t isfirst
; /* TODO For now: first char must be control! */
3370 n_UNINIT(next
, NULL
);
3371 for(cp
= tbcp
->tbc_cnv
, isfirst
= TRU1
, len
= tbcp
->tbc_cnv_len
;
3372 len
> 0; isfirst
= FAL0
, cp
= next
){
3376 i
= n_UNALIGN(si32_t
*,cp
)[0];
3383 /* struct{si32_t buf_len_iscap; si32_t cap_len; wc_t name[];} */
3384 cp
+= sizeof(si32_t
);
3385 i
= n_UNALIGN(si32_t
*,cp
)[0];
3386 cp
+= sizeof(si32_t
);
3387 for(j
= 0; j
< i
; ++j
)
3388 capname
[j
] = n_UNALIGN(wc_t
*,cp
)[j
];
3392 /* Use generic lookup mechanism if not a known query */
3396 tq
= n_termcap_query_for_name(capname
, n_TERMCAP_CAPTYPE_STRING
);
3398 tv
.tv_data
.tvd_string
= capname
;
3399 tq
= n__TERMCAP_QUERY_MAX1
;
3402 if(tq
< 0 || !n_termcap_query(tq
, &tv
)){
3403 if(n_poption
& n_PO_D_V
)
3404 n_err(_("`bind': unknown or unsupported capability: %s: %s\n"),
3405 capname
, tbcp
->tbc_seq
);
3406 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3411 /* struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;} */
3415 i
= strlen(tv
.tv_data
.tvd_string
);
3416 if(/*i > SI32_MAX ||*/ i
>= PTR2SIZE(next
- cp
)){
3417 if(n_poption
& n_PO_D_V
)
3418 n_err(_("`bind': capability expansion too long: %s: %s\n"),
3419 capname
, tbcp
->tbc_seq
);
3420 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3423 if(n_poption
& n_PO_D_V
)
3424 n_err(_("`bind': empty capability expansion: %s: %s\n"),
3425 capname
, tbcp
->tbc_seq
);
3426 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3428 }else if(isfirst
&& !cntrlchar(*tv
.tv_data
.tvd_string
)){
3429 if(n_poption
& n_PO_D_V
)
3430 n_err(_("`bind': capability expansion does not start with "
3431 "control: %s: %s\n"), capname
, tbcp
->tbc_seq
);
3432 tbcp
->tbc_flags
|= a_TTY_BIND_DEFUNCT
;
3435 n_UNALIGN(si32_t
*,cp
)[-1] = (si32_t
)i
;
3436 memcpy(cp
, tv
.tv_data
.tvd_string
, i
);
3444 a_tty_bind_del(struct a_tty_bind_parse_ctx
*tbpcp
){
3445 struct a_tty_bind_ctx
*ltbcp
, *tbcp
;
3448 tbcp
= tbpcp
->tbpc_tbcp
;
3450 if((ltbcp
= tbpcp
->tbpc_ltbcp
) != NULL
)
3451 ltbcp
->tbc_next
= tbcp
->tbc_next
;
3453 a_tty
.tg_bind
[tbpcp
->tbpc_flags
& n__GO_INPUT_CTX_MASK
] = tbcp
->tbc_next
;
3456 --a_tty
.tg_bind_cnt
;
3457 a_tty
.tg_bind_isdirty
= TRU1
;
3462 a_tty_bind_tree_build(void){
3466 for(i
= 0; i
< n__GO_INPUT_CTX_MAX1
; ++i
){
3467 struct a_tty_bind_ctx
*tbcp
;
3468 n_LCTAV(n_GO_INPUT_CTX_BASE
== 0);
3470 /* Somewhat wasteful, but easier to handle: simply clone the entire
3471 * primary key onto the secondary one, then only modify it */
3472 for(tbcp
= a_tty
.tg_bind
[n_GO_INPUT_CTX_BASE
]; tbcp
!= NULL
;
3473 tbcp
= tbcp
->tbc_next
)
3474 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
3475 a_tty__bind_tree_add(n_GO_INPUT_CTX_BASE
, &a_tty
.tg_bind_tree
[i
][0],
3478 if(i
!= n_GO_INPUT_CTX_BASE
)
3479 for(tbcp
= a_tty
.tg_bind
[i
]; tbcp
!= NULL
; tbcp
= tbcp
->tbc_next
)
3480 if(!(tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
))
3481 a_tty__bind_tree_add(i
, &a_tty
.tg_bind_tree
[i
][0], tbcp
);
3484 a_tty
.tg_bind_isbuild
= TRU1
;
3489 a_tty_bind_tree_teardown(void){
3493 memset(&a_tty
.tg_bind_shcut_cancel
[0], 0,
3494 sizeof(a_tty
.tg_bind_shcut_cancel
));
3495 memset(&a_tty
.tg_bind_shcut_prompt_char
[0], 0,
3496 sizeof(a_tty
.tg_bind_shcut_prompt_char
));
3498 for(i
= 0; i
< n__GO_INPUT_CTX_MAX1
; ++i
)
3499 for(j
= 0; j
< HSHSIZE
; ++j
)
3500 a_tty__bind_tree_free(a_tty
.tg_bind_tree
[i
][j
]);
3501 memset(&a_tty
.tg_bind_tree
[0], 0, sizeof(a_tty
.tg_bind_tree
));
3503 a_tty
.tg_bind_isdirty
= a_tty
.tg_bind_isbuild
= FAL0
;
3508 a_tty__bind_tree_add(ui32_t hmap_idx
, struct a_tty_bind_tree
*store
[HSHSIZE
],
3509 struct a_tty_bind_ctx
*tbcp
){
3512 struct a_tty_bind_tree
*ntbtp
;
3518 for(cnvdat
= tbcp
->tbc_cnv
, cnvlen
= tbcp
->tbc_cnv_len
; cnvlen
> 0;){
3519 union {wchar_t const *wp
; char const *cp
;} u
;
3522 /* {si32_t buf_len_iscap;} */
3523 entlen
= *n_UNALIGN(si32_t
const*,cnvdat
);
3525 if(entlen
& SI32_MIN
){
3526 /* struct{si32_t buf_len_iscap; si32_t cap_len; char buf[]+NUL;}
3527 * Note that empty capabilities result in DEFUNCT */
3528 for(u
.cp
= (char const*)&n_UNALIGN(si32_t
const*,cnvdat
)[2];
3529 *u
.cp
!= '\0'; ++u
.cp
)
3530 ntbtp
= a_tty__bind_tree_add_wc(store
, ntbtp
, *u
.cp
, TRU1
);
3531 assert(ntbtp
!= NULL
);
3532 ntbtp
->tbt_isseq_trail
= TRU1
;
3535 /* struct{si32_t buf_len_iscap; wc_t buf[]+NUL;} */
3538 u
.wp
= (wchar_t const*)&n_UNALIGN(si32_t
const*,cnvdat
)[1];
3540 /* May be a special shortcut function? */
3541 if(ntbtp
== NULL
&& (tbcp
->tbc_flags
& a_TTY_BIND_MLE1CNTRL
)){
3545 ctx
= tbcp
->tbc_flags
& n__GO_INPUT_CTX_MASK
;
3546 fun
= tbcp
->tbc_flags
& a_TTY__BIND_FUN_MASK
;
3548 if(fun
== a_TTY_BIND_FUN_CANCEL
){
3549 for(cp
= &a_tty
.tg_bind_shcut_cancel
[ctx
][0];
3550 PTRCMP(cp
, <, &a_tty
.tg_bind_shcut_cancel
[ctx
]
3551 [n_NELEM(a_tty
.tg_bind_shcut_cancel
[ctx
]) - 1]); ++cp
)
3556 }else if(fun
== a_TTY_BIND_FUN_PROMPT_CHAR
){
3557 for(cp
= &a_tty
.tg_bind_shcut_prompt_char
[ctx
][0];
3558 PTRCMP(cp
, <, &a_tty
.tg_bind_shcut_prompt_char
[ctx
]
3559 [n_NELEM(a_tty
.tg_bind_shcut_prompt_char
[ctx
]) - 1]);
3568 isseq
= (u
.wp
[1] != '\0');
3569 for(; *u
.wp
!= '\0'; ++u
.wp
)
3570 ntbtp
= a_tty__bind_tree_add_wc(store
, ntbtp
, *u
.wp
, isseq
);
3572 assert(ntbtp
!= NULL
);
3573 ntbtp
->tbt_isseq_trail
= TRU1
;
3581 /* Should have been rendered defunctional at first instead */
3582 assert(ntbtp
!= NULL
);
3583 ntbtp
->tbt_bind
= tbcp
;
3587 static struct a_tty_bind_tree
*
3588 a_tty__bind_tree_add_wc(struct a_tty_bind_tree
**treep
,
3589 struct a_tty_bind_tree
*parentp
, wchar_t wc
, bool_t isseq
){
3590 struct a_tty_bind_tree
*tbtp
, *xtbtp
;
3593 if(parentp
== NULL
){
3594 treep
+= wc
% HSHSIZE
;
3596 /* Having no parent also means that the tree slot is possibly empty */
3597 for(tbtp
= *treep
; tbtp
!= NULL
;
3598 parentp
= tbtp
, tbtp
= tbtp
->tbt_sibling
){
3599 if(tbtp
->tbt_char
!= wc
)
3601 if(tbtp
->tbt_isseq
== isseq
)
3603 /* isseq MUST be linked before !isseq, so record this "parent"
3604 * sibling, but continue searching for now.
3605 * Otherwise it is impossible that we'll find what we look for */
3608 while((tbtp
= tbtp
->tbt_sibling
) != NULL
)
3609 assert(tbtp
->tbt_char
!= wc
);
3615 tbtp
= smalloc(sizeof *tbtp
);
3616 memset(tbtp
, 0, sizeof *tbtp
);
3617 tbtp
->tbt_char
= wc
;
3618 tbtp
->tbt_isseq
= isseq
;
3620 if(parentp
== NULL
){
3621 tbtp
->tbt_sibling
= *treep
;
3624 tbtp
->tbt_sibling
= parentp
->tbt_sibling
;
3625 parentp
->tbt_sibling
= tbtp
;
3628 if((tbtp
= *(treep
= &parentp
->tbt_childs
)) != NULL
){
3629 for(;; tbtp
= xtbtp
){
3630 if(tbtp
->tbt_char
== wc
){
3631 if(tbtp
->tbt_isseq
== isseq
)
3633 /* isseq MUST be linked before, so it is impossible that we'll
3634 * find what we look for */
3637 while((tbtp
= tbtp
->tbt_sibling
) != NULL
)
3638 assert(tbtp
->tbt_char
!= wc
);
3645 if((xtbtp
= tbtp
->tbt_sibling
) == NULL
){
3646 treep
= &tbtp
->tbt_sibling
;
3652 xtbtp
= smalloc(sizeof *xtbtp
);
3653 memset(xtbtp
, 0, sizeof *xtbtp
);
3654 xtbtp
->tbt_parent
= parentp
;
3655 xtbtp
->tbt_char
= wc
;
3656 xtbtp
->tbt_isseq
= isseq
;
3666 a_tty__bind_tree_free(struct a_tty_bind_tree
*tbtp
){
3668 while(tbtp
!= NULL
){
3669 struct a_tty_bind_tree
*tmp
;
3671 if((tmp
= tbtp
->tbt_childs
) != NULL
)
3672 a_tty__bind_tree_free(tmp
);
3674 tmp
= tbtp
->tbt_sibling
;
3680 # endif /* HAVE_KEY_BINDINGS */
3686 if(ok_blook(line_editor_disable
))
3689 /* Load the history file */
3690 # ifdef HAVE_HISTORY
3695 size_t lsize
, cnt
, llen
;
3697 if((v
= a_tty_hist_query_config()) == NULL
||
3698 a_tty
.tg_hist_size_max
== 0)
3701 hold_all_sigs(); /* TODO too heavy, yet we may jump even here!? */
3702 f
= fopen(v
, "r"); /* TODO HISTFILE LOAD: use linebuf pool */
3705 (void)n_file_lock(fileno(f
), FLT_READ
, 0,0, UIZ_MAX
);
3707 assert(!(n_pstate
& n_PS_ROOT
));
3708 n_pstate
|= n_PS_ROOT
; /* Allow calling addhist() */
3711 cnt
= (size_t)fsize(f
);
3712 while(fgetline(&lbuf
, &lsize
, &cnt
, &llen
, f
, FAL0
) != NULL
){
3713 if(llen
> 0 && lbuf
[llen
- 1] == '\n')
3714 lbuf
[--llen
] = '\0';
3715 if(llen
== 0 || lbuf
[0] == '#') /* xxx comments? noone! */
3720 isgabby
= (lbuf
[0] == '*');
3721 n_tty_addhist(lbuf
+ isgabby
, isgabby
);
3726 n_pstate
&= ~n_PS_ROOT
;
3730 rele_all_sigs(); /* XXX remove jumps */
3732 # endif /* HAVE_HISTORY */
3734 /* Force immediate resolve for anything which follows */
3735 n_psonce
|= n_PSO_LINE_EDITOR_INIT
;
3737 # ifdef HAVE_KEY_BINDINGS
3738 /* `bind's (and `unbind's) done from within resource files couldn't be
3739 * performed for real since our termcap driver wasn't yet loaded, and we
3740 * can't perform automatic init since the user may have disallowed so */
3742 struct a_tty_bind_ctx
*tbcp
;
3743 enum n_go_input_flags gif
;
3745 for(gif
= 0; gif
< n__GO_INPUT_CTX_MAX1
; ++gif
)
3746 for(tbcp
= a_tty
.tg_bind
[gif
]; tbcp
!= NULL
; tbcp
= tbcp
->tbc_next
)
3747 if((tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)) ==
3749 a_tty_bind_resolve(tbcp
);
3752 /* And we want to (try to) install some default key bindings */
3753 if(!ok_blook(line_editor_no_defaults
)){
3755 struct a_tty_bind_parse_ctx tbpc
;
3756 struct a_tty_bind_builtin_tuple
const *tbbtp
, *tbbtp_max
;
3759 buf
[0] = '$', buf
[1] = '\'', buf
[2] = '\\', buf
[3] = 'c',
3760 buf
[5] = '\'', buf
[6] = '\0';
3762 tbbtp
= a_tty_bind_base_tuples
;
3763 tbbtp_max
= &tbbtp
[n_NELEM(a_tty_bind_base_tuples
)];
3764 flags
= n_GO_INPUT_CTX_BASE
;
3766 for(; tbbtp
< tbbtp_max
; ++tbbtp
){
3767 memset(&tbpc
, 0, sizeof tbpc
);
3768 tbpc
.tbpc_cmd
= "bind";
3769 if(tbbtp
->tbbt_iskey
){
3770 buf
[4] = tbbtp
->tbbt_ckey
;
3771 tbpc
.tbpc_in_seq
= buf
;
3773 tbpc
.tbpc_in_seq
= savecatsep(":", '\0',
3774 n_termcap_name_of_query(tbbtp
->tbbt_query
));
3775 tbpc
.tbpc_exp
.s
= n_UNCONST(tbbtp
->tbbt_exp
[0] == '\0'
3776 ? a_tty_bind_fun_names
[(ui8_t
)tbbtp
->tbbt_exp
[1]]
3778 tbpc
.tbpc_exp
.l
= strlen(tbpc
.tbpc_exp
.s
);
3779 tbpc
.tbpc_flags
= flags
;
3780 /* ..but don't want to overwrite any user settings */
3781 a_tty_bind_create(&tbpc
, FAL0
);
3783 if(flags
== n_GO_INPUT_CTX_BASE
){
3784 tbbtp
= a_tty_bind_default_tuples
;
3785 tbbtp_max
= &tbbtp
[n_NELEM(a_tty_bind_default_tuples
)];
3786 flags
= n_GO_INPUT_CTX_DEFAULT
;
3790 # endif /* HAVE_KEY_BINDINGS */
3797 n_tty_destroy(bool_t xit_fastpath
){
3800 if(!(n_psonce
& n_PSO_LINE_EDITOR_INIT
))
3803 # ifdef HAVE_HISTORY
3804 if(!xit_fastpath
) do/* for break */{
3807 struct a_tty_hist
*thp
;
3811 if((v
= a_tty_hist_query_config()) == NULL
||
3812 a_tty
.tg_hist_size_max
== 0)
3815 dogabby
= ok_blook(history_gabby_persist
);
3817 if((thp
= a_tty
.tg_hist
) != NULL
)
3818 for(i
= a_tty
.tg_hist_size_max
; thp
->th_older
!= NULL
;
3819 thp
= thp
->th_older
)
3820 if((dogabby
|| !thp
->th_isgabby
) && --i
== 0)
3823 hold_all_sigs(); /* TODO too heavy, yet we may jump even here!? */
3824 f
= fopen(v
, "w"); /* TODO temporary + rename?! */
3827 (void)n_file_lock(fileno(f
), FLT_WRITE
, 0,0, UIZ_MAX
);
3829 for(; thp
!= NULL
; thp
= thp
->th_younger
){
3830 if(dogabby
|| !thp
->th_isgabby
){
3833 fwrite(thp
->th_dat
, sizeof *thp
->th_dat
, thp
->th_len
, f
);
3839 rele_all_sigs(); /* XXX remove jumps */
3841 # endif /* HAVE_HISTORY */
3843 # if defined HAVE_KEY_BINDINGS && defined HAVE_DEBUG
3844 n_go_command(n_GO_INPUT_NONE
, "unbind * *");
3848 memset(&a_tty
, 0, sizeof a_tty
);
3850 n_psonce
&= ~n_PSO_LINE_EDITOR_INIT
;
3857 n_tty_signal(int sig
){
3858 sigset_t nset
, oset
;
3859 NYD_X
; /* Signal handler */
3864 /* We don't deal with SIGWINCH, yet get called from main.c.
3865 * Note this case might get called even if !n_PO_LINE_EDITOR_INIT */
3869 n_COLOUR( n_colour_env_gut(); ) /* TODO NO SIMPLE SUSPENSION POSSIBLE.. */
3870 a_tty_term_mode(FAL0
);
3871 n_TERMCAP_SUSPEND(TRU1
);
3875 sigaddset(&nset
, sig
);
3876 sigprocmask(SIG_UNBLOCK
, &nset
, &oset
);
3878 /* When we come here we'll continue editing, so reestablish */
3879 sigprocmask(SIG_BLOCK
, &oset
, (sigset_t
*)NULL
);
3881 /* TODO THEREFORE NEED TO _GUT() .. _CREATE() ENTIRE ENVS!! */
3882 n_COLOUR( n_colour_env_create(n_COLOUR_CTX_MLE
, n_tty_fp
, FAL0
); )
3884 n_TERMCAP_RESUME(TRU1
);
3885 a_tty_term_mode(TRU1
);
3886 a_tty
.tg_line
->tl_vi_flags
|= a_TTY_VF_MOD_DIRTY
;
3892 (n_tty_readline
)(enum n_go_input_flags gif
, char const *prompt
,
3893 char **linebuf
, size_t *linesize
, size_t n
, bool_t
*histok_or_null
3894 n_MEMORY_DEBUG_ARGS
){
3895 struct a_tty_line tl
;
3896 struct n_string xprompt
;
3904 assert(!ok_blook(line_editor_disable
));
3905 if(!(n_psonce
& n_PSO_LINE_EDITOR_INIT
))
3907 assert(n_psonce
& n_PSO_LINE_EDITOR_INIT
);
3910 n_colour_env_create(n_COLOUR_CTX_MLE
, n_tty_fp
, FAL0
);
3912 /* .tl_pos_buf is a hack */
3913 posbuf
= pos
= NULL
;
3915 if(n_COLOUR_IS_ACTIVE()){
3917 struct n_colour_pen
*ccp
;
3918 struct str
const *sp
;
3920 if((ccp
= n_colour_pen_create(n_COLOUR_ID_MLE_POSITION
, NULL
)) != NULL
&&
3921 (sp
= n_colour_pen_to_str(ccp
)) != NULL
){
3923 if((sp
= n_colour_reset_to_str()) != NULL
){
3928 posbuf
= salloc(l1
+ 4 + l2
+1);
3929 memcpy(posbuf
, ccol
, l1
);
3931 memcpy(&pos
[4], sp
->s
, ++l2
);
3937 posbuf
= pos
= salloc(4 +1);
3940 # endif /* HAVE_COLOUR */
3942 memset(&tl
, 0, sizeof tl
);
3944 # ifdef HAVE_KEY_BINDINGS
3948 if((cp
= ok_vlook(bind_timeout
)) != NULL
){
3951 n_idec_ui64_cp(&uib
, cp
, 0, NULL
);
3954 /* Convert to tenths of a second, unfortunately */
3955 (uib
= (uib
+ 99) / 100) <= a_TTY_BIND_TIMEOUT_MAX
)
3956 tl
.tl_bind_timeout
= (ui8_t
)uib
;
3957 else if(n_poption
& n_PO_D_V
)
3958 n_err(_("Ignoring invalid *bind-timeout*: %s\n"), cp
);
3962 if(a_tty
.tg_bind_isdirty
)
3963 a_tty_bind_tree_teardown();
3964 if(a_tty
.tg_bind_cnt
> 0 && !a_tty
.tg_bind_isbuild
)
3965 a_tty_bind_tree_build();
3966 tl
.tl_bind_tree_hmap
= &a_tty
.tg_bind_tree
[gif
& n__GO_INPUT_CTX_MASK
];
3967 tl
.tl_bind_shcut_cancel
=
3968 &a_tty
.tg_bind_shcut_cancel
[gif
& n__GO_INPUT_CTX_MASK
];
3969 tl
.tl_bind_shcut_prompt_char
=
3970 &a_tty
.tg_bind_shcut_prompt_char
[gif
& n__GO_INPUT_CTX_MASK
];
3971 # endif /* HAVE_KEY_BINDINGS */
3974 tl
.tl_pos_buf
= posbuf
;
3978 if(!(gif
& n_GO_INPUT_PROMPT_NONE
)){
3979 n_string_creat_auto(&xprompt
);
3981 if((tl
.tl_prompt_width
= n_tty_create_prompt(&xprompt
, prompt
, gif
)
3983 tl
.tl_prompt
= n_string_cp_const(&xprompt
);
3984 tl
.tl_prompt_length
= (ui32_t
)xprompt
.s_len
;
3988 tl
.tl_line
.cbuf
= *linebuf
;
3990 tl
.tl_defc
.s
= savestrbuf(*linebuf
, n
);
3993 tl
.tl_x_buf
= linebuf
;
3994 tl
.tl_x_bufsize
= linesize
;
3996 a_tty
.tg_line
= &tl
;
3998 n_TERMCAP_RESUME(FAL0
);
3999 a_tty_term_mode(TRU1
);
4000 nn
= a_tty_readline(&tl
, n
, histok_or_null n_MEMORY_DEBUG_ARGSCALL
);
4001 n_COLOUR( n_colour_env_gut(); )
4002 a_tty_term_mode(FAL0
);
4003 n_TERMCAP_SUSPEND(FAL0
);
4005 a_tty
.tg_line
= NULL
;
4012 n_tty_addhist(char const *s
, bool_t isgabby
){
4013 # ifdef HAVE_HISTORY
4014 /* Super-Heavy-Metal: block all sigs, avoid leaks+ on jump */
4016 struct a_tty_hist
*thp
, *othp
, *ythp
;
4022 # ifdef HAVE_HISTORY
4024 (!(n_psonce
& n_PSO_LINE_EDITOR_INIT
) && !(n_pstate
& n_PS_ROOT
)) ||
4025 a_tty
.tg_hist_size_max
== 0 ||
4026 ok_blook(line_editor_disable
) ||
4027 (isgabby
&& !ok_blook(history_gabby
)))
4030 l
= (ui32_t
)strlen(s
);
4032 /* Eliminating duplicates is expensive, but simply inacceptable so
4033 * during the load of a potentially large history file! */
4034 if(n_psonce
& n_PSO_LINE_EDITOR_INIT
)
4035 for(thp
= a_tty
.tg_hist
; thp
!= NULL
; thp
= thp
->th_older
)
4036 if(thp
->th_len
== l
&& !strcmp(thp
->th_dat
, s
)){
4037 hold_all_sigs(); /* TODO */
4039 thp
->th_isgabby
= !!isgabby
;
4040 othp
= thp
->th_older
;
4041 ythp
= thp
->th_younger
;
4043 othp
->th_younger
= ythp
;
4045 a_tty
.tg_hist_tail
= ythp
;
4047 ythp
->th_older
= othp
;
4049 a_tty
.tg_hist
= othp
;
4054 ++a_tty
.tg_hist_size
;
4055 if((n_psonce
& n_PSO_LINE_EDITOR_INIT
) &&
4056 a_tty
.tg_hist_size
> a_tty
.tg_hist_size_max
){
4057 --a_tty
.tg_hist_size
;
4058 if((thp
= a_tty
.tg_hist_tail
) != NULL
){
4059 if((a_tty
.tg_hist_tail
= thp
->th_younger
) == NULL
)
4060 a_tty
.tg_hist
= NULL
;
4062 a_tty
.tg_hist_tail
->th_older
= NULL
;
4067 thp
= smalloc(n_VSTRUCT_SIZEOF(struct a_tty_hist
, th_dat
) + l
+1);
4068 thp
->th_isgabby
= !!isgabby
;
4070 memcpy(thp
->th_dat
, s
, l
+1);
4072 if((thp
->th_older
= a_tty
.tg_hist
) != NULL
)
4073 a_tty
.tg_hist
->th_younger
= thp
;
4075 a_tty
.tg_hist_tail
= thp
;
4076 thp
->th_younger
= NULL
;
4077 a_tty
.tg_hist
= thp
;
4081 # endif /* HAVE_HISTORY */
4085 # ifdef HAVE_HISTORY
4089 struct a_tty_hist
*thp
;
4093 if(ok_blook(line_editor_disable
)){
4094 n_err(_("history: *line-editor-disable* is set\n"));
4098 if(!(n_psonce
& n_PSO_LINE_EDITOR_INIT
)){
4100 assert(n_psonce
& n_PSO_LINE_EDITOR_INIT
);
4103 if(*(argv
= v
) == NULL
)
4107 if(!asccasecmp(*argv
, "show"))
4109 if(!asccasecmp(*argv
, "clear"))
4111 if((n_idec_siz_cp(&entry
, *argv
, 10, NULL
4112 ) & (n_IDEC_STATE_EMASK
| n_IDEC_STATE_CONSUMED
)
4113 ) == n_IDEC_STATE_CONSUMED
)
4116 n_err(_("Synopsis: history: %s\n"),
4117 /* Same string as in cmd-tab.h, still hoping...) */
4118 _("<show> (default), <clear> or select <NO> from editor history"));
4122 return (v
== NULL
? !STOP
: !OKAY
); /* xxx 1:bad 0:good -- do some */
4128 if(a_tty
.tg_hist
== NULL
)
4131 if((fp
= Ftmp(NULL
, "hist", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
4132 n_perr(_("tmpfile"), 0);
4137 i
= a_tty
.tg_hist_size
;
4139 for(thp
= a_tty
.tg_hist
; thp
!= NULL
;
4140 --i
, b
+= thp
->th_len
, thp
= thp
->th_older
){
4141 fprintf(fp
, "%c%" PRIuZ
, (thp
->th_isgabby
? '*' : ' '), i
);
4142 if(n_poption
& n_PO_D_V
)
4143 fprintf(fp
, " (%" PRIuZ
"+%" PRIu32
")", b
, thp
->th_len
);
4145 fputs(thp
->th_dat
, fp
);
4149 page_or_print(fp
, i
);
4155 while((thp
= a_tty
.tg_hist
) != NULL
){
4156 a_tty
.tg_hist
= thp
->th_older
;
4159 a_tty
.tg_hist_tail
= NULL
;
4160 a_tty
.tg_hist_size
= 0;
4166 ep
= (entry
< 0) ? -entry
: entry
;
4168 if(ep
!= 0 && UICMP(z
, ep
, <=, a_tty
.tg_hist_size
)){
4172 ep
= (siz_t
)a_tty
.tg_hist_size
- ep
;
4173 for(thp
= a_tty
.tg_hist
;; thp
= thp
->th_older
){
4174 assert(thp
!= NULL
);
4176 n_go_input_inject((n_GO_INPUT_INJECT_COMMIT
|
4177 n_GO_INPUT_INJECT_HISTORY
), v
= thp
->th_dat
, thp
->th_len
);
4182 n_err(_("`history': no such entry: %" PRIdZ
"\n"), entry
);
4188 # endif /* HAVE_HISTORY */
4190 # ifdef HAVE_KEY_BINDINGS
4193 struct a_tty_bind_ctx
*tbcp
;
4194 enum n_go_input_flags gif
;
4196 union {char const *cp
; char *p
; char c
;} c
;
4197 struct n_cmd_arg_ctx
*cacp
;
4202 c
.cp
= cacp
->cac_arg
->ca_arg
.ca_str
.s
;
4203 if(cacp
->cac_no
== 1)
4206 show
= !asccasecmp(cacp
->cac_arg
->ca_next
->ca_arg
.ca_str
.s
, "show");
4209 if((gif
= a_tty_bind_ctx_find(c
.cp
)) == (enum n_go_input_flags
)-1){
4210 if(!(aster
= n_is_all_or_aster(c
.cp
)) || !show
){
4211 n_err(_("`bind': invalid context: %s\n"), c
.cp
);
4222 if((fp
= Ftmp(NULL
, "bind", OF_RDWR
| OF_UNLINK
| OF_REGISTER
)) == NULL
){
4223 n_perr(_("tmpfile"), 0);
4230 for(tbcp
= a_tty
.tg_bind
[gif
]; tbcp
!= NULL
;
4231 ++lns
, tbcp
= tbcp
->tbc_next
){
4232 /* Print the bytes of resolved terminal capabilities, then */
4233 if((n_poption
& n_PO_D_V
) &&
4234 (tbcp
->tbc_flags
& (a_TTY_BIND_RESOLVE
| a_TTY_BIND_DEFUNCT
)
4235 ) == a_TTY_BIND_RESOLVE
){
4237 union {wchar_t const *wp
; char const *cp
;} u
;
4240 char const *cnvdat
, *bsep
, *cbufp
;
4245 cbuf
[0] = '=', cbuf
[2] = '\0';
4246 for(cnvdat
= tbcp
->tbc_cnv
, cnvlen
= tbcp
->tbc_cnv_len
;
4248 if(cnvdat
!= tbcp
->tbc_cnv
)
4251 /* {si32_t buf_len_iscap;} */
4252 entlen
= *n_UNALIGN(si32_t
const*,cnvdat
);
4253 if(entlen
& SI32_MIN
){
4254 /* struct{si32_t buf_len_iscap; si32_t cap_len;
4255 * char buf[]+NUL;} */
4257 u
.cp
= (char const*)
4258 &n_UNALIGN(si32_t
const*,cnvdat
)[2];
4259 (c
.c
= *u
.cp
) != '\0'; ++u
.cp
){
4260 if(asciichar(c
.c
) && !cntrlchar(c
.c
))
4261 cbuf
[1] = c
.c
, cbufp
= cbuf
;
4264 fprintf(fp
, "%s%02X%s",
4265 bsep
, (ui32_t
)(ui8_t
)c
.c
, cbufp
);
4280 fprintf(fp
, "%sbind %s %s %s%s%s\n",
4281 ((tbcp
->tbc_flags
& a_TTY_BIND_DEFUNCT
)
4282 /* I18N: `bind' sequence not working, either because it is
4283 * I18N: using Unicode and that is not available in the locale,
4284 * I18N: or a termcap(5)/terminfo(5) sequence won't work out */
4285 ? _("# <Defunctional> ") : n_empty
),
4286 a_tty_bind_ctx_maps
[gif
].tbcm_name
, tbcp
->tbc_seq
,
4287 n_shexp_quote_cp(tbcp
->tbc_exp
, TRU1
),
4288 (tbcp
->tbc_flags
& a_TTY_BIND_NOCOMMIT
? n_at
: n_empty
),
4289 (!(n_poption
& n_PO_D_VV
) ? n_empty
4290 : (tbcp
->tbc_flags
& a_TTY_BIND_FUN_INTERNAL
4291 ? _(" # MLE internal") : n_empty
))
4294 if(!aster
|| ++gif
>= n__GO_INPUT_CTX_MAX1
)
4297 page_or_print(fp
, lns
);
4301 struct a_tty_bind_parse_ctx tbpc
;
4302 struct n_cmd_arg
*cap
;
4304 memset(&tbpc
, 0, sizeof tbpc
);
4305 tbpc
.tbpc_cmd
= cacp
->cac_desc
->cad_name
;
4306 tbpc
.tbpc_in_seq
= (cap
= cacp
->cac_arg
->ca_next
)->ca_arg
.ca_str
.s
;
4307 if((cap
= cap
->ca_next
) != NULL
){
4308 tbpc
.tbpc_exp
.s
= cap
->ca_arg
.ca_str
.s
;
4309 tbpc
.tbpc_exp
.l
= cap
->ca_arg
.ca_str
.l
;
4311 tbpc
.tbpc_flags
= gif
;
4312 if(!a_tty_bind_create(&tbpc
, TRU1
))
4317 return (v
!= NULL
) ? n_EXIT_OK
: n_EXIT_ERR
;
4322 struct a_tty_bind_parse_ctx tbpc
;
4323 struct a_tty_bind_ctx
*tbcp
;
4324 enum n_go_input_flags gif
;
4326 union {char const *cp
; char *p
;} c
;
4327 struct n_cmd_arg_ctx
*cacp
;
4331 c
.cp
= cacp
->cac_arg
->ca_arg
.ca_str
.s
;
4334 if((gif
= a_tty_bind_ctx_find(c
.cp
)) == (enum n_go_input_flags
)-1){
4335 if(!(aster
= n_is_all_or_aster(c
.cp
))){
4336 n_err(_("`unbind': invalid context: %s\n"), c
.cp
);
4343 c
.cp
= cacp
->cac_arg
->ca_next
->ca_arg
.ca_str
.s
;
4345 if(n_is_all_or_aster(c
.cp
)){
4346 while((tbcp
= a_tty
.tg_bind
[gif
]) != NULL
){
4347 memset(&tbpc
, 0, sizeof tbpc
);
4348 tbpc
.tbpc_tbcp
= tbcp
;
4349 tbpc
.tbpc_flags
= gif
;
4350 a_tty_bind_del(&tbpc
);
4353 memset(&tbpc
, 0, sizeof tbpc
);
4354 tbpc
.tbpc_cmd
= cacp
->cac_desc
->cad_name
;
4355 tbpc
.tbpc_in_seq
= c
.cp
;
4356 tbpc
.tbpc_flags
= gif
;
4358 if(n_UNLIKELY(!a_tty_bind_parse(FAL0
, &tbpc
)))
4360 else if(n_UNLIKELY((tbcp
= tbpc
.tbpc_tbcp
) == NULL
)){
4361 n_err(_("`unbind': no such `bind'ing: %s %s\n"),
4362 a_tty_bind_ctx_maps
[gif
].tbcm_name
, c
.cp
);
4365 a_tty_bind_del(&tbpc
);
4368 if(aster
&& ++gif
< n__GO_INPUT_CTX_MAX1
)
4372 return (v
!= NULL
) ? n_EXIT_OK
: n_EXIT_ERR
;
4374 # endif /* HAVE_KEY_BINDINGS */
4376 #else /* HAVE_MLE */
4378 * The really-nothing-at-all implementation
4389 n_tty_destroy(bool_t xit_fastpath
){
4391 n_UNUSED(xit_fastpath
);
4397 n_tty_signal(int sig
){
4398 NYD_X
; /* Signal handler */
4401 # ifdef HAVE_TERMCAP
4404 sigset_t nset
, oset
;
4406 n_TERMCAP_SUSPEND(TRU1
);
4410 sigaddset(&nset
, sig
);
4411 sigprocmask(SIG_UNBLOCK
, &nset
, &oset
);
4413 /* When we come here we'll continue editing, so reestablish */
4414 sigprocmask(SIG_BLOCK
, &oset
, (sigset_t
*)NULL
);
4417 n_TERMCAP_RESUME(TRU1
);
4421 # endif /* HAVE_TERMCAP */
4425 (n_tty_readline
)(enum n_go_input_flags gif
, char const *prompt
,
4426 char **linebuf
, size_t *linesize
, size_t n
, bool_t
*histok_or_null
4427 n_MEMORY_DEBUG_ARGS
){
4428 struct n_string xprompt
;
4431 n_UNUSED(histok_or_null
);
4433 if(!(gif
& n_GO_INPUT_PROMPT_NONE
)){
4434 if(n_tty_create_prompt(n_string_creat_auto(&xprompt
), prompt
, gif
) > 0){
4435 fwrite(xprompt
.s_dat
, 1, xprompt
.s_len
, n_tty_fp
);
4440 # ifdef HAVE_TERMCAP
4442 n_TERMCAP_RESUME(FAL0
);
4444 rv
= (readline_restart
)(n_stdin
, linebuf
, linesize
,n n_MEMORY_DEBUG_ARGSCALL
);
4445 # ifdef HAVE_TERMCAP
4446 n_TERMCAP_SUSPEND(FAL0
);
4454 n_tty_addhist(char const *s
, bool_t isgabby
){
4460 #endif /* nothing at all */
4462 #undef a_TTY_SIGNALS