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726f6388 JA |
1 | This file is read.def, from which is created read.c. |
2 | It implements the builtin "read" in Bash. | |
3 | ||
ac50fbac | 4 | Copyright (C) 1987-2012 Free Software Foundation, Inc. |
726f6388 JA |
5 | |
6 | This file is part of GNU Bash, the Bourne Again SHell. | |
7 | ||
3185942a JA |
8 | Bash is free software: you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation, either version 3 of the License, or | |
11 | (at your option) any later version. | |
726f6388 | 12 | |
3185942a JA |
13 | Bash is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
726f6388 | 17 | |
3185942a JA |
18 | You should have received a copy of the GNU General Public License |
19 | along with Bash. If not, see <http://www.gnu.org/licenses/>. | |
726f6388 JA |
20 | |
21 | $PRODUCES read.c | |
22 | ||
23 | $BUILTIN read | |
24 | $FUNCTION read_builtin | |
0001803f | 25 | $SHORT_DOC read [-ers] [-a array] [-d delim] [-i text] [-n nchars] [-N nchars] [-p prompt] [-t timeout] [-u fd] [name ...] |
3185942a JA |
26 | Read a line from the standard input and split it into fields. |
27 | ||
28 | Reads a single line from the standard input, or from file descriptor FD | |
29 | if the -u option is supplied. The line is split into fields as with word | |
30 | splitting, and the first word is assigned to the first NAME, the second | |
31 | word to the second NAME, and so on, with any leftover words assigned to | |
32 | the last NAME. Only the characters found in $IFS are recognized as word | |
33 | delimiters. | |
34 | ||
35 | If no NAMEs are supplied, the line read is stored in the REPLY variable. | |
36 | ||
37 | Options: | |
38 | -a array assign the words read to sequential indices of the array | |
39 | variable ARRAY, starting at zero | |
40 | -d delim continue until the first character of DELIM is read, rather | |
41 | than newline | |
42 | -e use Readline to obtain the line in an interactive shell | |
43 | -i text Use TEXT as the initial text for Readline | |
44 | -n nchars return after reading NCHARS characters rather than waiting | |
0001803f CR |
45 | for a newline, but honor a delimiter if fewer than NCHARS |
46 | characters are read before the delimiter | |
47 | -N nchars return only after reading exactly NCHARS characters, unless | |
48 | EOF is encountered or read times out, ignoring any delimiter | |
3185942a JA |
49 | -p prompt output the string PROMPT without a trailing newline before |
50 | attempting to read | |
51 | -r do not allow backslashes to escape any characters | |
52 | -s do not echo input coming from a terminal | |
53 | -t timeout time out and return failure if a complete line of input is | |
ac50fbac | 54 | not read within TIMEOUT seconds. The value of the TMOUT |
3185942a | 55 | variable is the default timeout. TIMEOUT may be a |
ac50fbac CR |
56 | fractional number. If TIMEOUT is 0, read returns immediately, |
57 | without trying to read any data, returning success only if | |
58 | input is available on the specified file descriptor. The | |
3185942a JA |
59 | exit status is greater than 128 if the timeout is exceeded |
60 | -u fd read from file descriptor FD instead of the standard input | |
61 | ||
62 | Exit Status: | |
ac50fbac CR |
63 | The return code is zero, unless end-of-file is encountered, read times out |
64 | (in which case it's greater than 128), a variable assignment error occurs, | |
3185942a | 65 | or an invalid file descriptor is supplied as the argument to -u. |
726f6388 JA |
66 | $END |
67 | ||
ccc6cda3 JA |
68 | #include <config.h> |
69 | ||
bb70624e JA |
70 | #include "bashtypes.h" |
71 | #include "posixstat.h" | |
72 | ||
726f6388 | 73 | #include <stdio.h> |
ccc6cda3 | 74 | |
3185942a JA |
75 | #include "bashansi.h" |
76 | ||
ccc6cda3 JA |
77 | #if defined (HAVE_UNISTD_H) |
78 | # include <unistd.h> | |
79 | #endif | |
80 | ||
bb70624e | 81 | #include <signal.h> |
e8ce775d JA |
82 | #include <errno.h> |
83 | ||
28ef6c31 JA |
84 | #ifdef __CYGWIN__ |
85 | # include <fcntl.h> | |
86 | # include <io.h> | |
87 | #endif | |
88 | ||
b80f6443 JA |
89 | #include "../bashintl.h" |
90 | ||
726f6388 JA |
91 | #include "../shell.h" |
92 | #include "common.h" | |
ccc6cda3 | 93 | #include "bashgetopt.h" |
726f6388 | 94 | |
bb70624e JA |
95 | #include <shtty.h> |
96 | ||
ccc6cda3 JA |
97 | #if defined (READLINE) |
98 | #include "../bashline.h" | |
99 | #include <readline/readline.h> | |
100 | #endif | |
726f6388 | 101 | |
95732b49 JA |
102 | #if defined (BUFFERED_INPUT) |
103 | # include "input.h" | |
104 | #endif | |
105 | ||
ac50fbac CR |
106 | #include "shmbutil.h" |
107 | ||
e8ce775d JA |
108 | #if !defined(errno) |
109 | extern int errno; | |
110 | #endif | |
111 | ||
ac50fbac CR |
112 | extern void run_pending_traps __P((void)); |
113 | ||
114 | extern int posixly_correct; | |
115 | extern int trapped_signal_received; | |
116 | ||
3185942a JA |
117 | struct ttsave |
118 | { | |
119 | int fd; | |
120 | TTYSTRUCT *attrs; | |
121 | }; | |
122 | ||
ccc6cda3 | 123 | #if defined (READLINE) |
0628567a | 124 | static void reset_attempted_completion_function __P((char *)); |
3185942a JA |
125 | static int set_itext __P((void)); |
126 | static char *edit_line __P((char *, char *)); | |
f73dda09 JA |
127 | static void set_eol_delim __P((int)); |
128 | static void reset_eol_delim __P((char *)); | |
ccc6cda3 | 129 | #endif |
f73dda09 | 130 | static SHELL_VAR *bind_read_variable __P((char *, char *)); |
3185942a JA |
131 | #if defined (HANDLE_MULTIBYTE) |
132 | static int read_mbchar __P((int, char *, int, int, int)); | |
133 | #endif | |
134 | static void ttyrestore __P((struct ttsave *)); | |
f73dda09 JA |
135 | |
136 | static sighandler sigalrm __P((int)); | |
137 | static void reset_alarm __P((void)); | |
ccc6cda3 | 138 | |
ac50fbac CR |
139 | /* Try this to see what the rest of the shell can do with the information. */ |
140 | procenv_t alrmbuf; | |
141 | int sigalrm_seen; | |
142 | ||
143 | static int reading; | |
bb70624e | 144 | static SigHandler *old_alrm; |
f73dda09 | 145 | static unsigned char delim; |
bb70624e | 146 | |
ac50fbac CR |
147 | /* In all cases, SIGALRM just sets a flag that we check periodically. This |
148 | avoids problems with the semi-tricky stuff we do with the xfree of | |
149 | input_string at the top of the unwind-protect list (see below). */ | |
150 | ||
151 | /* Set a flag that CHECK_ALRM can check. This relies on zread calling | |
152 | trap.c:check_signals_and_traps(), which knows about sigalrm_seen and | |
153 | alrmbuf. */ | |
bb70624e JA |
154 | static sighandler |
155 | sigalrm (s) | |
156 | int s; | |
157 | { | |
ac50fbac | 158 | sigalrm_seen = 1; |
bb70624e JA |
159 | } |
160 | ||
161 | static void | |
162 | reset_alarm () | |
163 | { | |
164 | set_signal_handler (SIGALRM, old_alrm); | |
3185942a | 165 | falarm (0, 0); |
bb70624e JA |
166 | } |
167 | ||
726f6388 JA |
168 | /* Read the value of the shell variables whose names follow. |
169 | The reading is done from the current input stream, whatever | |
170 | that may be. Successive words of the input line are assigned | |
171 | to the variables mentioned in LIST. The last variable in LIST | |
172 | gets the remainder of the words on the line. If no variables | |
ccc6cda3 JA |
173 | are mentioned in LIST, then the default variable is $REPLY. */ |
174 | int | |
726f6388 JA |
175 | read_builtin (list) |
176 | WORD_LIST *list; | |
177 | { | |
178 | register char *varname; | |
f1be666c JA |
179 | int size, i, nr, pass_next, saw_escape, eof, opt, retval, code, print_ps2; |
180 | int input_is_tty, input_is_pipe, unbuffered_read, skip_ctlesc, skip_ctlnul; | |
ac50fbac | 181 | int raw, edit, nchars, silent, have_timeout, ignore_delim, fd, lastsig, t_errno; |
3185942a JA |
182 | unsigned int tmsec, tmusec; |
183 | long ival, uval; | |
7117c2d2 | 184 | intmax_t intval; |
ccc6cda3 JA |
185 | char c; |
186 | char *input_string, *orig_input_string, *ifs_chars, *prompt, *arrayname; | |
f1be666c | 187 | char *e, *t, *t1, *ps2, *tofree; |
bb70624e | 188 | struct stat tsb; |
726f6388 | 189 | SHELL_VAR *var; |
3185942a JA |
190 | TTYSTRUCT ttattrs, ttset; |
191 | struct ttsave termsave; | |
ccc6cda3 JA |
192 | #if defined (ARRAY_VARS) |
193 | WORD_LIST *alist; | |
194 | #endif | |
195 | #if defined (READLINE) | |
3185942a | 196 | char *rlbuf, *itext; |
ccc6cda3 JA |
197 | int rlind; |
198 | #endif | |
726f6388 | 199 | |
f73dda09 JA |
200 | USE_VAR(size); |
201 | USE_VAR(i); | |
202 | USE_VAR(pass_next); | |
f1be666c | 203 | USE_VAR(print_ps2); |
f73dda09 JA |
204 | USE_VAR(saw_escape); |
205 | USE_VAR(input_is_pipe); | |
206 | /* USE_VAR(raw); */ | |
207 | USE_VAR(edit); | |
3185942a JA |
208 | USE_VAR(tmsec); |
209 | USE_VAR(tmusec); | |
f73dda09 JA |
210 | USE_VAR(nchars); |
211 | USE_VAR(silent); | |
212 | USE_VAR(ifs_chars); | |
213 | USE_VAR(prompt); | |
214 | USE_VAR(arrayname); | |
215 | #if defined (READLINE) | |
216 | USE_VAR(rlbuf); | |
217 | USE_VAR(rlind); | |
3185942a | 218 | USE_VAR(itext); |
f73dda09 JA |
219 | #endif |
220 | USE_VAR(list); | |
f1be666c | 221 | USE_VAR(ps2); |
ac50fbac CR |
222 | USE_VAR(lastsig); |
223 | ||
224 | sigalrm_seen = reading = 0; | |
f73dda09 | 225 | |
726f6388 | 226 | i = 0; /* Index into the string that we are reading. */ |
ccc6cda3 | 227 | raw = edit = 0; /* Not reading raw input by default. */ |
bb70624e | 228 | silent = 0; |
ccc6cda3 | 229 | arrayname = prompt = (char *)NULL; |
7117c2d2 | 230 | fd = 0; /* file descriptor to read from */ |
ccc6cda3 JA |
231 | |
232 | #if defined (READLINE) | |
3185942a | 233 | rlbuf = itext = (char *)0; |
ccc6cda3 JA |
234 | rlind = 0; |
235 | #endif | |
726f6388 | 236 | |
3185942a | 237 | tmsec = tmusec = 0; /* no timeout */ |
95732b49 | 238 | nr = nchars = input_is_tty = input_is_pipe = unbuffered_read = have_timeout = 0; |
bb70624e | 239 | delim = '\n'; /* read until newline */ |
0001803f | 240 | ignore_delim = 0; |
bb70624e | 241 | |
ccc6cda3 | 242 | reset_internal_getopt (); |
0001803f | 243 | while ((opt = internal_getopt (list, "ersa:d:i:n:p:t:u:N:")) != -1) |
726f6388 | 244 | { |
ccc6cda3 | 245 | switch (opt) |
28ef6c31 JA |
246 | { |
247 | case 'r': | |
ccc6cda3 | 248 | raw = 1; |
726f6388 | 249 | break; |
ccc6cda3 JA |
250 | case 'p': |
251 | prompt = list_optarg; | |
252 | break; | |
bb70624e JA |
253 | case 's': |
254 | silent = 1; | |
255 | break; | |
ccc6cda3 JA |
256 | case 'e': |
257 | #if defined (READLINE) | |
258 | edit = 1; | |
3185942a JA |
259 | #endif |
260 | break; | |
261 | case 'i': | |
262 | #if defined (READLINE) | |
263 | itext = list_optarg; | |
ccc6cda3 JA |
264 | #endif |
265 | break; | |
266 | #if defined (ARRAY_VARS) | |
267 | case 'a': | |
268 | arrayname = list_optarg; | |
269 | break; | |
270 | #endif | |
bb70624e | 271 | case 't': |
3185942a JA |
272 | code = uconvert (list_optarg, &ival, &uval); |
273 | if (code == 0 || ival < 0 || uval < 0) | |
bb70624e | 274 | { |
b80f6443 | 275 | builtin_error (_("%s: invalid timeout specification"), list_optarg); |
bb70624e JA |
276 | return (EXECUTION_FAILURE); |
277 | } | |
278 | else | |
f73dda09 JA |
279 | { |
280 | have_timeout = 1; | |
3185942a JA |
281 | tmsec = ival; |
282 | tmusec = uval; | |
f73dda09 | 283 | } |
bb70624e | 284 | break; |
0001803f CR |
285 | case 'N': |
286 | ignore_delim = 1; | |
287 | delim = -1; | |
bb70624e | 288 | case 'n': |
7117c2d2 JA |
289 | code = legal_number (list_optarg, &intval); |
290 | if (code == 0 || intval < 0 || intval != (int)intval) | |
bb70624e | 291 | { |
7117c2d2 | 292 | sh_invalidnum (list_optarg); |
bb70624e JA |
293 | return (EXECUTION_FAILURE); |
294 | } | |
295 | else | |
7117c2d2 JA |
296 | nchars = intval; |
297 | break; | |
298 | case 'u': | |
299 | code = legal_number (list_optarg, &intval); | |
300 | if (code == 0 || intval < 0 || intval != (int)intval) | |
301 | { | |
b80f6443 | 302 | builtin_error (_("%s: invalid file descriptor specification"), list_optarg); |
7117c2d2 JA |
303 | return (EXECUTION_FAILURE); |
304 | } | |
305 | else | |
306 | fd = intval; | |
307 | if (sh_validfd (fd) == 0) | |
308 | { | |
b80f6443 | 309 | builtin_error (_("%d: invalid file descriptor: %s"), fd, strerror (errno)); |
7117c2d2 JA |
310 | return (EXECUTION_FAILURE); |
311 | } | |
bb70624e JA |
312 | break; |
313 | case 'd': | |
314 | delim = *list_optarg; | |
315 | break; | |
ccc6cda3 JA |
316 | default: |
317 | builtin_usage (); | |
726f6388 JA |
318 | return (EX_USAGE); |
319 | } | |
726f6388 | 320 | } |
ccc6cda3 | 321 | list = loptend; |
726f6388 | 322 | |
17345e5a JA |
323 | /* `read -t 0 var' tests whether input is available with select/FIONREAD, |
324 | and fails if those are unavailable */ | |
3185942a JA |
325 | if (have_timeout && tmsec == 0 && tmusec == 0) |
326 | #if 0 | |
bb70624e | 327 | return (EXECUTION_FAILURE); |
3185942a JA |
328 | #else |
329 | return (input_avail (fd) ? EXECUTION_SUCCESS : EXECUTION_FAILURE); | |
330 | #endif | |
bb70624e | 331 | |
ac50fbac CR |
332 | /* Convenience: check early whether or not the first of possibly several |
333 | variable names is a valid identifier, and bail early if so. */ | |
334 | #if defined (ARRAY_VARS) | |
335 | if (list && legal_identifier (list->word->word) == 0 && valid_array_reference (list->word->word) == 0) | |
336 | #else | |
337 | if (list && legal_identifier (list->word->word) == 0) | |
338 | #endif | |
339 | { | |
340 | sh_invalidid (list->word->word); | |
341 | return (EXECUTION_FAILURE); | |
342 | } | |
343 | ||
0001803f CR |
344 | /* If we're asked to ignore the delimiter, make sure we do. */ |
345 | if (ignore_delim) | |
346 | delim = -1; | |
347 | ||
ccc6cda3 | 348 | /* IF IFS is unset, we use the default of " \t\n". */ |
7117c2d2 JA |
349 | ifs_chars = getifs (); |
350 | if (ifs_chars == 0) /* XXX - shouldn't happen */ | |
351 | ifs_chars = ""; | |
0001803f CR |
352 | /* If we want to read exactly NCHARS chars, don't split on IFS */ |
353 | if (ignore_delim) | |
354 | ifs_chars = ""; | |
3185942a JA |
355 | for (skip_ctlesc = skip_ctlnul = 0, e = ifs_chars; *e; e++) |
356 | skip_ctlesc |= *e == CTLESC, skip_ctlnul |= *e == CTLNUL; | |
726f6388 | 357 | |
7117c2d2 | 358 | input_string = (char *)xmalloc (size = 112); /* XXX was 128 */ |
3185942a | 359 | input_string[0] = '\0'; |
7117c2d2 JA |
360 | |
361 | /* $TMOUT, if set, is the default timeout for read. */ | |
362 | if (have_timeout == 0 && (e = get_string_value ("TMOUT"))) | |
363 | { | |
3185942a JA |
364 | code = uconvert (e, &ival, &uval); |
365 | if (code == 0 || ival < 0 || uval < 0) | |
366 | tmsec = tmusec = 0; | |
7117c2d2 | 367 | else |
3185942a JA |
368 | { |
369 | tmsec = ival; | |
370 | tmusec = uval; | |
371 | } | |
7117c2d2 | 372 | } |
726f6388 JA |
373 | |
374 | begin_unwind_frame ("read_builtin"); | |
726f6388 | 375 | |
95732b49 JA |
376 | #if defined (BUFFERED_INPUT) |
377 | if (interactive == 0 && default_buffered_input >= 0 && fd_is_bash_input (fd)) | |
378 | sync_buffered_stream (default_buffered_input); | |
379 | #endif | |
380 | ||
7117c2d2 | 381 | input_is_tty = isatty (fd); |
bb70624e | 382 | if (input_is_tty == 0) |
28ef6c31 | 383 | #ifndef __CYGWIN__ |
95732b49 | 384 | input_is_pipe = (lseek (fd, 0L, SEEK_CUR) < 0) && (errno == ESPIPE); |
bb70624e JA |
385 | #else |
386 | input_is_pipe = 1; | |
387 | #endif | |
388 | ||
389 | /* If the -p, -e or -s flags were given, but input is not coming from the | |
ccc6cda3 | 390 | terminal, turn them off. */ |
bb70624e | 391 | if ((prompt || edit || silent) && input_is_tty == 0) |
ccc6cda3 JA |
392 | { |
393 | prompt = (char *)NULL; | |
3185942a JA |
394 | #if defined (READLINE) |
395 | itext = (char *)NULL; | |
396 | #endif | |
bb70624e | 397 | edit = silent = 0; |
ccc6cda3 JA |
398 | } |
399 | ||
7117c2d2 JA |
400 | #if defined (READLINE) |
401 | if (edit) | |
402 | add_unwind_protect (xfree, rlbuf); | |
403 | #endif | |
404 | ||
726f6388 JA |
405 | pass_next = 0; /* Non-zero signifies last char was backslash. */ |
406 | saw_escape = 0; /* Non-zero signifies that we saw an escape char */ | |
407 | ||
3185942a | 408 | if (tmsec > 0 || tmusec > 0) |
bb70624e JA |
409 | { |
410 | /* Turn off the timeout if stdin is a regular file (e.g. from | |
411 | input redirection). */ | |
7117c2d2 | 412 | if ((fstat (fd, &tsb) < 0) || S_ISREG (tsb.st_mode)) |
3185942a | 413 | tmsec = tmusec = 0; |
bb70624e JA |
414 | } |
415 | ||
3185942a | 416 | if (tmsec > 0 || tmusec > 0) |
bb70624e | 417 | { |
ac50fbac | 418 | code = setjmp_nosigs (alrmbuf); |
bb70624e JA |
419 | if (code) |
420 | { | |
ac50fbac | 421 | sigalrm_seen = 0; |
89a92869 CR |
422 | /* Tricky. The top of the unwind-protect stack is the free of |
423 | input_string. We want to run all the rest and use input_string, | |
43aebe92 | 424 | so we have to save input_string temporarily, run the unwind- |
ac50fbac CR |
425 | protects, then restore input_string so we can use it later */ |
426 | orig_input_string = 0; | |
3185942a | 427 | input_string[i] = '\0'; /* make sure it's terminated */ |
43aebe92 CR |
428 | if (i == 0) |
429 | { | |
430 | t = (char *)xmalloc (1); | |
431 | t[0] = 0; | |
432 | } | |
433 | else | |
434 | t = savestring (input_string); | |
435 | ||
436 | run_unwind_frame ("read_builtin"); | |
437 | input_string = t; | |
89a92869 | 438 | retval = 128+SIGALRM; |
3185942a | 439 | goto assign_vars; |
bb70624e JA |
440 | } |
441 | old_alrm = set_signal_handler (SIGALRM, sigalrm); | |
442 | add_unwind_protect (reset_alarm, (char *)NULL); | |
0628567a JA |
443 | #if defined (READLINE) |
444 | if (edit) | |
9b86eb22 CR |
445 | { |
446 | add_unwind_protect (reset_attempted_completion_function, (char *)NULL); | |
447 | add_unwind_protect (bashline_reset_event_hook, (char *)NULL); | |
448 | } | |
0628567a | 449 | #endif |
3185942a | 450 | falarm (tmsec, tmusec); |
bb70624e JA |
451 | } |
452 | ||
453 | /* If we've been asked to read only NCHARS chars, or we're using some | |
454 | character other than newline to terminate the line, do the right | |
455 | thing to readline or the tty. */ | |
456 | if (nchars > 0 || delim != '\n') | |
457 | { | |
458 | #if defined (READLINE) | |
459 | if (edit) | |
460 | { | |
461 | if (nchars > 0) | |
462 | { | |
463 | unwind_protect_int (rl_num_chars_to_read); | |
464 | rl_num_chars_to_read = nchars; | |
465 | } | |
466 | if (delim != '\n') | |
467 | { | |
468 | set_eol_delim (delim); | |
469 | add_unwind_protect (reset_eol_delim, (char *)NULL); | |
470 | } | |
471 | } | |
472 | else | |
473 | #endif | |
474 | if (input_is_tty) | |
28ef6c31 | 475 | { |
3185942a JA |
476 | /* ttsave() */ |
477 | termsave.fd = fd; | |
478 | ttgetattr (fd, &ttattrs); | |
479 | termsave.attrs = &ttattrs; | |
480 | ||
481 | ttset = ttattrs; | |
17345e5a JA |
482 | i = silent ? ttfd_cbreak (fd, &ttset) : ttfd_onechar (fd, &ttset); |
483 | if (i < 0) | |
484 | sh_ttyerror (1); | |
3185942a | 485 | add_unwind_protect ((Function *)ttyrestore, (char *)&termsave); |
bb70624e JA |
486 | } |
487 | } | |
488 | else if (silent) /* turn off echo but leave term in canonical mode */ | |
489 | { | |
3185942a JA |
490 | /* ttsave (); */ |
491 | termsave.fd = fd; | |
492 | ttgetattr (fd, &ttattrs); | |
493 | termsave.attrs = &ttattrs; | |
494 | ||
495 | ttset = ttattrs; | |
17345e5a JA |
496 | i = ttfd_noecho (fd, &ttset); /* ttnoecho (); */ |
497 | if (i < 0) | |
498 | sh_ttyerror (1); | |
3185942a JA |
499 | |
500 | add_unwind_protect ((Function *)ttyrestore, (char *)&termsave); | |
bb70624e JA |
501 | } |
502 | ||
28ef6c31 JA |
503 | /* This *must* be the top unwind-protect on the stack, so the manipulation |
504 | of the unwind-protect stack after the realloc() works right. */ | |
505 | add_unwind_protect (xfree, input_string); | |
28ef6c31 | 506 | |
ac50fbac CR |
507 | CHECK_ALRM; |
508 | if ((nchars > 0) && (input_is_tty == 0) && ignore_delim) /* read -N */ | |
509 | unbuffered_read = 2; | |
510 | else if ((nchars > 0) || (delim != '\n') || input_is_pipe) | |
511 | unbuffered_read = 1; | |
bb70624e | 512 | |
3185942a JA |
513 | if (prompt && edit == 0) |
514 | { | |
515 | fprintf (stderr, "%s", prompt); | |
516 | fflush (stderr); | |
517 | } | |
518 | ||
28ef6c31 JA |
519 | #if defined (__CYGWIN__) && defined (O_TEXT) |
520 | setmode (0, O_TEXT); | |
521 | #endif | |
522 | ||
f1be666c JA |
523 | ps2 = 0; |
524 | for (print_ps2 = eof = retval = 0;;) | |
726f6388 | 525 | { |
ac50fbac CR |
526 | CHECK_ALRM; |
527 | ||
ccc6cda3 JA |
528 | #if defined (READLINE) |
529 | if (edit) | |
530 | { | |
531 | if (rlbuf && rlbuf[rlind] == '\0') | |
532 | { | |
d166f048 | 533 | xfree (rlbuf); |
ccc6cda3 JA |
534 | rlbuf = (char *)0; |
535 | } | |
536 | if (rlbuf == 0) | |
537 | { | |
ac50fbac | 538 | reading = 1; |
3185942a | 539 | rlbuf = edit_line (prompt ? prompt : "", itext); |
ac50fbac | 540 | reading = 0; |
ccc6cda3 JA |
541 | rlind = 0; |
542 | } | |
543 | if (rlbuf == 0) | |
544 | { | |
545 | eof = 1; | |
546 | break; | |
547 | } | |
548 | c = rlbuf[rlind++]; | |
549 | } | |
550 | else | |
b72432fd | 551 | { |
e8ce775d JA |
552 | #endif |
553 | ||
f1be666c JA |
554 | if (print_ps2) |
555 | { | |
556 | if (ps2 == 0) | |
557 | ps2 = get_string_value ("PS2"); | |
558 | fprintf (stderr, "%s", ps2 ? ps2 : ""); | |
559 | fflush (stderr); | |
560 | print_ps2 = 0; | |
561 | } | |
562 | ||
ac50fbac CR |
563 | #if 0 |
564 | if (posixly_correct == 0) | |
565 | interrupt_immediately++; | |
566 | #endif | |
567 | reading = 1; | |
568 | if (unbuffered_read == 2) | |
569 | retval = posixly_correct ? zreadintr (fd, &c, 1) : zreadn (fd, &c, nchars - nr); | |
570 | else if (unbuffered_read) | |
571 | retval = posixly_correct ? zreadintr (fd, &c, 1) : zread (fd, &c, 1); | |
bb70624e | 572 | else |
ac50fbac CR |
573 | retval = posixly_correct ? zreadcintr (fd, &c) : zreadc (fd, &c); |
574 | reading = 0; | |
575 | #if 0 | |
576 | if (posixly_correct == 0) | |
577 | interrupt_immediately--; | |
578 | #endif | |
bb70624e | 579 | |
e8ce775d | 580 | if (retval <= 0) |
ccc6cda3 | 581 | { |
ac50fbac CR |
582 | if (retval < 0 && errno == EINTR) |
583 | { | |
584 | lastsig = LASTSIG(); | |
585 | if (lastsig == 0) | |
586 | lastsig = trapped_signal_received; | |
587 | run_pending_traps (); /* because interrupt_immediately is not set */ | |
588 | } | |
589 | else | |
590 | lastsig = 0; | |
591 | CHECK_TERMSIG; | |
ccc6cda3 JA |
592 | eof = 1; |
593 | break; | |
594 | } | |
595 | ||
ac50fbac CR |
596 | CHECK_ALRM; |
597 | ||
b72432fd JA |
598 | #if defined (READLINE) |
599 | } | |
600 | #endif | |
601 | ||
ac50fbac | 602 | CHECK_ALRM; |
3185942a | 603 | if (i + 4 >= size) /* XXX was i + 2; use i + 4 for multibyte/read_mbchar */ |
28ef6c31 | 604 | { |
ac50fbac CR |
605 | char *t; |
606 | t = (char *)xrealloc (input_string, size += 128); | |
607 | ||
608 | /* Only need to change unwind-protect if input_string changes */ | |
609 | if (t != input_string) | |
610 | { | |
611 | input_string = t; | |
612 | remove_unwind_protect (); | |
613 | add_unwind_protect (xfree, input_string); | |
614 | } | |
28ef6c31 | 615 | } |
726f6388 JA |
616 | |
617 | /* If the next character is to be accepted verbatim, a backslash | |
618 | newline pair still disappears from the input. */ | |
619 | if (pass_next) | |
620 | { | |
95732b49 | 621 | pass_next = 0; |
726f6388 | 622 | if (c == '\n') |
f1be666c JA |
623 | { |
624 | i--; /* back up over the CTLESC */ | |
625 | if (interactive && input_is_tty && raw == 0) | |
626 | print_ps2 = 1; | |
627 | } | |
726f6388 | 628 | else |
95732b49 | 629 | goto add_char; |
726f6388 JA |
630 | continue; |
631 | } | |
632 | ||
3185942a | 633 | /* This may cause problems if IFS contains CTLESC */ |
ccc6cda3 | 634 | if (c == '\\' && raw == 0) |
726f6388 JA |
635 | { |
636 | pass_next++; | |
3185942a JA |
637 | if (skip_ctlesc == 0) |
638 | { | |
639 | saw_escape++; | |
640 | input_string[i++] = CTLESC; | |
641 | } | |
726f6388 JA |
642 | continue; |
643 | } | |
644 | ||
ac50fbac | 645 | if (ignore_delim == 0 && (unsigned char)c == delim) |
726f6388 JA |
646 | break; |
647 | ||
ac50fbac CR |
648 | if (c == '\0' && delim != '\0') |
649 | continue; /* skip NUL bytes in input */ | |
650 | ||
3185942a | 651 | if ((skip_ctlesc == 0 && c == CTLESC) || (skip_ctlnul == 0 && c == CTLNUL)) |
726f6388 JA |
652 | { |
653 | saw_escape++; | |
654 | input_string[i++] = CTLESC; | |
655 | } | |
656 | ||
95732b49 | 657 | add_char: |
726f6388 | 658 | input_string[i++] = c; |
ac50fbac | 659 | CHECK_ALRM; |
3185942a JA |
660 | |
661 | #if defined (HANDLE_MULTIBYTE) | |
ac50fbac | 662 | if (nchars > 0 && MB_CUR_MAX > 1 && is_basic (c) == 0) |
3185942a JA |
663 | { |
664 | input_string[i] = '\0'; /* for simplicity and debugging */ | |
665 | i += read_mbchar (fd, input_string, i, c, unbuffered_read); | |
666 | } | |
667 | #endif | |
668 | ||
95732b49 | 669 | nr++; |
bb70624e | 670 | |
95732b49 | 671 | if (nchars > 0 && nr >= nchars) |
bb70624e | 672 | break; |
726f6388 JA |
673 | } |
674 | input_string[i] = '\0'; | |
ac50fbac | 675 | CHECK_ALRM; |
726f6388 | 676 | |
7117c2d2 JA |
677 | if (retval < 0) |
678 | { | |
ac50fbac CR |
679 | t_errno = errno; |
680 | if (errno != EINTR) | |
681 | builtin_error (_("read error: %d: %s"), fd, strerror (errno)); | |
0628567a | 682 | run_unwind_frame ("read_builtin"); |
ac50fbac | 683 | return ((t_errno != EINTR) ? EXECUTION_FAILURE : 128+lastsig); |
7117c2d2 | 684 | } |
7117c2d2 | 685 | |
3185942a | 686 | if (tmsec > 0 || tmusec > 0) |
bb70624e JA |
687 | reset_alarm (); |
688 | ||
689 | if (nchars > 0 || delim != '\n') | |
690 | { | |
691 | #if defined (READLINE) | |
692 | if (edit) | |
693 | { | |
694 | if (nchars > 0) | |
695 | rl_num_chars_to_read = 0; | |
696 | if (delim != '\n') | |
f73dda09 | 697 | reset_eol_delim ((char *)NULL); |
bb70624e JA |
698 | } |
699 | else | |
700 | #endif | |
701 | if (input_is_tty) | |
3185942a | 702 | ttyrestore (&termsave); |
bb70624e JA |
703 | } |
704 | else if (silent) | |
3185942a | 705 | ttyrestore (&termsave); |
bb70624e JA |
706 | |
707 | if (unbuffered_read == 0) | |
7117c2d2 | 708 | zsyncfd (fd); |
bb70624e | 709 | |
726f6388 JA |
710 | discard_unwind_frame ("read_builtin"); |
711 | ||
ccc6cda3 | 712 | retval = eof ? EXECUTION_FAILURE : EXECUTION_SUCCESS; |
726f6388 | 713 | |
3185942a JA |
714 | assign_vars: |
715 | ||
ccc6cda3 JA |
716 | #if defined (ARRAY_VARS) |
717 | /* If -a was given, take the string read, break it into a list of words, | |
718 | an assign them to `arrayname' in turn. */ | |
719 | if (arrayname) | |
726f6388 | 720 | { |
b80f6443 JA |
721 | if (legal_identifier (arrayname) == 0) |
722 | { | |
723 | sh_invalidid (arrayname); | |
724 | xfree (input_string); | |
725 | return (EXECUTION_FAILURE); | |
726 | } | |
727 | ||
f73dda09 | 728 | var = find_or_make_array_variable (arrayname, 1); |
ccc6cda3 | 729 | if (var == 0) |
0628567a JA |
730 | { |
731 | xfree (input_string); | |
732 | return EXECUTION_FAILURE; /* readonly or noassign */ | |
733 | } | |
b4d40164 CR |
734 | if (assoc_p (var)) |
735 | { | |
736 | builtin_error (_("%s: cannot convert associative to indexed array"), arrayname); | |
737 | xfree (input_string); | |
738 | return EXECUTION_FAILURE; /* existing associative array */ | |
739 | } | |
ac50fbac CR |
740 | else if (invisible_p (var)) |
741 | VUNSETATTR (var, att_invisible); | |
7117c2d2 | 742 | array_flush (array_cell (var)); |
ccc6cda3 JA |
743 | |
744 | alist = list_string (input_string, ifs_chars, 0); | |
745 | if (alist) | |
746 | { | |
0628567a JA |
747 | if (saw_escape) |
748 | dequote_list (alist); | |
749 | else | |
750 | word_list_remove_quoted_nulls (alist); | |
95732b49 | 751 | assign_array_var_from_word_list (var, alist, 0); |
ccc6cda3 JA |
752 | dispose_words (alist); |
753 | } | |
d166f048 | 754 | xfree (input_string); |
ccc6cda3 | 755 | return (retval); |
726f6388 | 756 | } |
ccc6cda3 | 757 | #endif /* ARRAY_VARS */ |
726f6388 | 758 | |
d166f048 JA |
759 | /* If there are no variables, save the text of the line read to the |
760 | variable $REPLY. ksh93 strips leading and trailing IFS whitespace, | |
761 | so that `read x ; echo "$x"' and `read ; echo "$REPLY"' behave the | |
762 | same way, but I believe that the difference in behaviors is useful | |
763 | enough to not do it. Without the bash behavior, there is no way | |
28ef6c31 JA |
764 | to read a line completely without interpretation or modification |
765 | unless you mess with $IFS (e.g., setting it to the empty string). | |
d166f048 JA |
766 | If you disagree, change the occurrences of `#if 0' to `#if 1' below. */ |
767 | if (list == 0) | |
726f6388 | 768 | { |
d166f048 JA |
769 | #if 0 |
770 | orig_input_string = input_string; | |
7117c2d2 | 771 | for (t = input_string; ifs_chars && *ifs_chars && spctabnl(*t) && isifs(*t); t++) |
d166f048 JA |
772 | ; |
773 | input_string = t; | |
774 | input_string = strip_trailing_ifs_whitespace (input_string, ifs_chars, saw_escape); | |
775 | #endif | |
776 | ||
726f6388 JA |
777 | if (saw_escape) |
778 | { | |
779 | t = dequote_string (input_string); | |
95732b49 | 780 | var = bind_variable ("REPLY", t, 0); |
726f6388 JA |
781 | free (t); |
782 | } | |
783 | else | |
95732b49 | 784 | var = bind_variable ("REPLY", input_string, 0); |
bb70624e | 785 | VUNSETATTR (var, att_invisible); |
28ef6c31 | 786 | |
ac50fbac | 787 | xfree (input_string); |
ccc6cda3 | 788 | return (retval); |
726f6388 | 789 | } |
ccc6cda3 JA |
790 | |
791 | /* This code implements the Posix.2 spec for splitting the words | |
792 | read and assigning them to variables. */ | |
793 | orig_input_string = input_string; | |
794 | ||
795 | /* Remove IFS white space at the beginning of the input string. If | |
796 | $IFS is null, no field splitting is performed. */ | |
7117c2d2 | 797 | for (t = input_string; ifs_chars && *ifs_chars && spctabnl(*t) && isifs(*t); t++) |
ccc6cda3 JA |
798 | ; |
799 | input_string = t; | |
ccc6cda3 | 800 | for (; list->next; list = list->next) |
726f6388 | 801 | { |
ccc6cda3 JA |
802 | varname = list->word->word; |
803 | #if defined (ARRAY_VARS) | |
804 | if (legal_identifier (varname) == 0 && valid_array_reference (varname) == 0) | |
805 | #else | |
806 | if (legal_identifier (varname) == 0) | |
807 | #endif | |
726f6388 | 808 | { |
7117c2d2 | 809 | sh_invalidid (varname); |
f73dda09 | 810 | xfree (orig_input_string); |
ccc6cda3 JA |
811 | return (EXECUTION_FAILURE); |
812 | } | |
726f6388 | 813 | |
ccc6cda3 JA |
814 | /* If there are more variables than words read from the input, |
815 | the remaining variables are set to the empty string. */ | |
816 | if (*input_string) | |
817 | { | |
818 | /* This call updates INPUT_STRING. */ | |
819 | t = get_word_from_string (&input_string, ifs_chars, &e); | |
820 | if (t) | |
821 | *e = '\0'; | |
822 | /* Don't bother to remove the CTLESC unless we added one | |
823 | somewhere while reading the string. */ | |
824 | if (t && saw_escape) | |
726f6388 | 825 | { |
ccc6cda3 JA |
826 | t1 = dequote_string (t); |
827 | var = bind_read_variable (varname, t1); | |
f73dda09 | 828 | xfree (t1); |
726f6388 JA |
829 | } |
830 | else | |
952a5758 | 831 | var = bind_read_variable (varname, t ? t : ""); |
ccc6cda3 JA |
832 | } |
833 | else | |
834 | { | |
835 | t = (char *)0; | |
836 | var = bind_read_variable (varname, ""); | |
726f6388 JA |
837 | } |
838 | ||
ccc6cda3 JA |
839 | FREE (t); |
840 | if (var == 0) | |
726f6388 | 841 | { |
f73dda09 | 842 | xfree (orig_input_string); |
726f6388 JA |
843 | return (EXECUTION_FAILURE); |
844 | } | |
845 | ||
ccc6cda3 | 846 | stupidly_hack_special_variables (varname); |
bb70624e | 847 | VUNSETATTR (var, att_invisible); |
ccc6cda3 JA |
848 | } |
849 | ||
850 | /* Now assign the rest of the line to the last variable argument. */ | |
851 | #if defined (ARRAY_VARS) | |
852 | if (legal_identifier (list->word->word) == 0 && valid_array_reference (list->word->word) == 0) | |
853 | #else | |
854 | if (legal_identifier (list->word->word) == 0) | |
855 | #endif | |
856 | { | |
7117c2d2 | 857 | sh_invalidid (list->word->word); |
f73dda09 | 858 | xfree (orig_input_string); |
ccc6cda3 | 859 | return (EXECUTION_FAILURE); |
726f6388 JA |
860 | } |
861 | ||
95732b49 | 862 | #if 0 |
ccc6cda3 JA |
863 | /* This has to be done this way rather than using string_list |
864 | and list_string because Posix.2 says that the last variable gets the | |
865 | remaining words and their intervening separators. */ | |
866 | input_string = strip_trailing_ifs_whitespace (input_string, ifs_chars, saw_escape); | |
95732b49 JA |
867 | #else |
868 | /* Check whether or not the number of fields is exactly the same as the | |
869 | number of variables. */ | |
f1be666c | 870 | tofree = NULL; |
95732b49 JA |
871 | if (*input_string) |
872 | { | |
873 | t1 = input_string; | |
874 | t = get_word_from_string (&input_string, ifs_chars, &e); | |
875 | if (*input_string == 0) | |
f1be666c | 876 | tofree = input_string = t; |
95732b49 | 877 | else |
89a92869 CR |
878 | { |
879 | input_string = strip_trailing_ifs_whitespace (t1, ifs_chars, saw_escape); | |
880 | tofree = t; | |
881 | } | |
95732b49 JA |
882 | } |
883 | #endif | |
ccc6cda3 | 884 | |
0213a83a | 885 | if (saw_escape && input_string && *input_string) |
ccc6cda3 JA |
886 | { |
887 | t = dequote_string (input_string); | |
888 | var = bind_read_variable (list->word->word, t); | |
f73dda09 | 889 | xfree (t); |
ccc6cda3 JA |
890 | } |
891 | else | |
952a5758 | 892 | var = bind_read_variable (list->word->word, input_string ? input_string : ""); |
f1be666c | 893 | |
ccc6cda3 | 894 | if (var) |
495aee44 CR |
895 | { |
896 | stupidly_hack_special_variables (list->word->word); | |
897 | VUNSETATTR (var, att_invisible); | |
898 | } | |
899 | else | |
900 | retval = EXECUTION_FAILURE; | |
901 | ||
902 | FREE (tofree); | |
f73dda09 | 903 | xfree (orig_input_string); |
ccc6cda3 | 904 | |
726f6388 JA |
905 | return (retval); |
906 | } | |
907 | ||
ccc6cda3 JA |
908 | static SHELL_VAR * |
909 | bind_read_variable (name, value) | |
910 | char *name, *value; | |
911 | { | |
495aee44 | 912 | SHELL_VAR *v; |
ac50fbac | 913 | |
ccc6cda3 JA |
914 | #if defined (ARRAY_VARS) |
915 | if (valid_array_reference (name) == 0) | |
495aee44 | 916 | v = bind_variable (name, value, 0); |
ccc6cda3 | 917 | else |
495aee44 | 918 | v = assign_array_element (name, value, 0); |
f73dda09 | 919 | #else /* !ARRAY_VARS */ |
495aee44 | 920 | v = bind_variable (name, value, 0); |
f73dda09 | 921 | #endif /* !ARRAY_VARS */ |
495aee44 CR |
922 | return (v == 0 ? v |
923 | : ((readonly_p (v) || noassign_p (v)) ? (SHELL_VAR *)NULL : v)); | |
ccc6cda3 JA |
924 | } |
925 | ||
3185942a JA |
926 | #if defined (HANDLE_MULTIBYTE) |
927 | static int | |
928 | read_mbchar (fd, string, ind, ch, unbuffered) | |
929 | int fd; | |
930 | char *string; | |
931 | int ind, ch, unbuffered; | |
932 | { | |
933 | char mbchar[MB_LEN_MAX + 1]; | |
934 | int i, n, r; | |
935 | char c; | |
936 | size_t ret; | |
937 | mbstate_t ps, ps_back; | |
938 | wchar_t wc; | |
939 | ||
940 | memset (&ps, '\0', sizeof (mbstate_t)); | |
941 | memset (&ps_back, '\0', sizeof (mbstate_t)); | |
942 | ||
943 | mbchar[0] = ch; | |
944 | i = 1; | |
945 | for (n = 0; n <= MB_LEN_MAX; n++) | |
946 | { | |
947 | ps_back = ps; | |
948 | ret = mbrtowc (&wc, mbchar, i, &ps); | |
949 | if (ret == (size_t)-2) | |
950 | { | |
951 | ps = ps_back; | |
ac50fbac | 952 | /* We don't want to be interrupted during a multibyte char read */ |
3185942a JA |
953 | if (unbuffered) |
954 | r = zread (fd, &c, 1); | |
955 | else | |
956 | r = zreadc (fd, &c); | |
957 | if (r < 0) | |
958 | goto mbchar_return; | |
959 | mbchar[i++] = c; | |
960 | continue; | |
961 | } | |
962 | else if (ret == (size_t)-1 || ret == (size_t)0 || ret > (size_t)0) | |
963 | break; | |
964 | } | |
965 | ||
966 | mbchar_return: | |
967 | if (i > 1) /* read a multibyte char */ | |
968 | /* mbchar[0] is already string[ind-1] */ | |
969 | for (r = 1; r < i; r++) | |
970 | string[ind+r-1] = mbchar[r]; | |
971 | return i - 1; | |
972 | } | |
973 | #endif | |
974 | ||
975 | ||
976 | static void | |
977 | ttyrestore (ttp) | |
978 | struct ttsave *ttp; | |
979 | { | |
980 | ttsetattr (ttp->fd, ttp->attrs); | |
981 | } | |
982 | ||
ccc6cda3 | 983 | #if defined (READLINE) |
0628567a | 984 | static rl_completion_func_t *old_attempted_completion_function = 0; |
3185942a JA |
985 | static rl_hook_func_t *old_startup_hook; |
986 | static char *deftext; | |
0628567a JA |
987 | |
988 | static void | |
989 | reset_attempted_completion_function (cp) | |
990 | char *cp; | |
991 | { | |
992 | if (rl_attempted_completion_function == 0 && old_attempted_completion_function) | |
993 | rl_attempted_completion_function = old_attempted_completion_function; | |
994 | } | |
7117c2d2 | 995 | |
3185942a JA |
996 | static int |
997 | set_itext () | |
998 | { | |
999 | int r1, r2; | |
1000 | ||
1001 | r1 = r2 = 0; | |
1002 | if (old_startup_hook) | |
1003 | r1 = (*old_startup_hook) (); | |
1004 | if (deftext) | |
1005 | { | |
1006 | r2 = rl_insert_text (deftext); | |
1007 | deftext = (char *)NULL; | |
1008 | rl_startup_hook = old_startup_hook; | |
1009 | old_startup_hook = (rl_hook_func_t *)NULL; | |
1010 | } | |
1011 | return (r1 || r2); | |
1012 | } | |
1013 | ||
ccc6cda3 | 1014 | static char * |
3185942a | 1015 | edit_line (p, itext) |
ccc6cda3 | 1016 | char *p; |
3185942a | 1017 | char *itext; |
726f6388 | 1018 | { |
ccc6cda3 JA |
1019 | char *ret; |
1020 | int len; | |
1021 | ||
95732b49 | 1022 | if (bash_readline_initialized == 0) |
ccc6cda3 | 1023 | initialize_readline (); |
0628567a | 1024 | |
7117c2d2 JA |
1025 | old_attempted_completion_function = rl_attempted_completion_function; |
1026 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
9b86eb22 | 1027 | bashline_set_event_hook (); |
3185942a JA |
1028 | if (itext) |
1029 | { | |
1030 | old_startup_hook = rl_startup_hook; | |
1031 | rl_startup_hook = set_itext; | |
1032 | deftext = itext; | |
1033 | } | |
ac50fbac | 1034 | |
ccc6cda3 | 1035 | ret = readline (p); |
ac50fbac | 1036 | |
7117c2d2 | 1037 | rl_attempted_completion_function = old_attempted_completion_function; |
0628567a | 1038 | old_attempted_completion_function = (rl_completion_func_t *)NULL; |
9b86eb22 | 1039 | bashline_reset_event_hook (); |
0628567a | 1040 | |
ccc6cda3 JA |
1041 | if (ret == 0) |
1042 | return ret; | |
1043 | len = strlen (ret); | |
f73dda09 | 1044 | ret = (char *)xrealloc (ret, len + 2); |
bb70624e | 1045 | ret[len++] = delim; |
ccc6cda3 JA |
1046 | ret[len] = '\0'; |
1047 | return ret; | |
726f6388 | 1048 | } |
bb70624e JA |
1049 | |
1050 | static int old_delim_ctype; | |
f73dda09 | 1051 | static rl_command_func_t *old_delim_func; |
bb70624e | 1052 | static int old_newline_ctype; |
f73dda09 | 1053 | static rl_command_func_t *old_newline_func; |
bb70624e | 1054 | |
f73dda09 | 1055 | static unsigned char delim_char; |
bb70624e JA |
1056 | |
1057 | static void | |
1058 | set_eol_delim (c) | |
1059 | int c; | |
1060 | { | |
1061 | Keymap cmap; | |
1062 | ||
1063 | if (bash_readline_initialized == 0) | |
1064 | initialize_readline (); | |
1065 | cmap = rl_get_keymap (); | |
1066 | ||
1067 | /* Change newline to self-insert */ | |
1068 | old_newline_ctype = cmap[RETURN].type; | |
1069 | old_newline_func = cmap[RETURN].function; | |
1070 | cmap[RETURN].type = ISFUNC; | |
1071 | cmap[RETURN].function = rl_insert; | |
1072 | ||
1073 | /* Bind the delimiter character to accept-line. */ | |
1074 | old_delim_ctype = cmap[c].type; | |
1075 | old_delim_func = cmap[c].function; | |
1076 | cmap[c].type = ISFUNC; | |
1077 | cmap[c].function = rl_newline; | |
1078 | ||
1079 | delim_char = c; | |
1080 | } | |
1081 | ||
1082 | static void | |
f73dda09 JA |
1083 | reset_eol_delim (cp) |
1084 | char *cp; | |
bb70624e JA |
1085 | { |
1086 | Keymap cmap; | |
1087 | ||
1088 | cmap = rl_get_keymap (); | |
1089 | ||
1090 | cmap[RETURN].type = old_newline_ctype; | |
1091 | cmap[RETURN].function = old_newline_func; | |
1092 | ||
1093 | cmap[delim_char].type = old_delim_ctype; | |
1094 | cmap[delim_char].function = old_delim_func; | |
1095 | } | |
ccc6cda3 | 1096 | #endif |