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252b5132 | 1 | /* chew |
d87bef3a | 2 | Copyright (C) 1990-2023 Free Software Foundation, Inc. |
252b5132 RH |
3 | Contributed by steve chamberlain @cygnus |
4 | ||
cd123cb7 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
cd123cb7 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
252b5132 | 11 | |
cd123cb7 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
cd123cb7 NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
252b5132 RH |
21 | |
22 | /* Yet another way of extracting documentation from source. | |
23 | No, I haven't finished it yet, but I hope you people like it better | |
24 | than the old way | |
d70910e8 | 25 | |
252b5132 RH |
26 | sac |
27 | ||
28 | Basically, this is a sort of string forth, maybe we should call it | |
29 | struth? | |
30 | ||
31 | You define new words thus: | |
32 | : <newword> <oldwords> ; | |
33 | ||
34 | */ | |
35 | ||
36 | /* Primitives provided by the program: | |
37 | ||
38 | Two stacks are provided, a string stack and an integer stack. | |
39 | ||
40 | Internal state variables: | |
41 | internal_wanted - indicates whether `-i' was passed | |
42 | internal_mode - user-settable | |
43 | ||
44 | Commands: | |
45 | push_text | |
46 | ! - pop top of integer stack for address, pop next for value; store | |
47 | @ - treat value on integer stack as the address of an integer; push | |
48 | that integer on the integer stack after popping the "address" | |
49 | hello - print "hello\n" to stdout | |
50 | stdout - put stdout marker on TOS | |
51 | stderr - put stderr marker on TOS | |
52 | print - print TOS-1 on TOS (eg: "hello\n" stdout print) | |
53 | skip_past_newline | |
54 | catstr - fn icatstr | |
55 | copy_past_newline - append input, up to and including newline into TOS | |
56 | dup - fn other_dup | |
57 | drop - discard TOS | |
58 | idrop - ditto | |
59 | remchar - delete last character from TOS | |
60 | get_stuff_in_command | |
61 | do_fancy_stuff - translate <<foo>> to @code{foo} in TOS | |
62 | bulletize - if "o" lines found, prepend @itemize @bullet to TOS | |
63 | and @item to each "o" line; append @end itemize | |
64 | courierize - put @example around . and | lines, translate {* *} { } | |
65 | exit - fn chew_exit | |
66 | swap | |
67 | outputdots - strip out lines without leading dots | |
252b5132 RH |
68 | maybecatstr - do catstr if internal_mode == internal_wanted, discard |
69 | value in any case | |
70 | translatecomments - turn {* and *} into comment delimiters | |
71 | kill_bogus_lines - get rid of extra newlines | |
72 | indent | |
73 | internalmode - pop from integer stack, set `internalmode' to that value | |
74 | print_stack_level - print current stack depth to stderr | |
75 | strip_trailing_newlines - go ahead, guess... | |
76 | [quoted string] - push string onto string stack | |
77 | [word starting with digit] - push atol(str) onto integer stack | |
78 | ||
79 | A command must be all upper-case, and alone on a line. | |
80 | ||
81 | Foo. */ | |
82 | ||
252b5132 RH |
83 | #include <assert.h> |
84 | #include <stdio.h> | |
85 | #include <ctype.h> | |
d4ad1cbf | 86 | #include <stdlib.h> |
99356e90 | 87 | #include <string.h> |
126eff23 | 88 | #include <stdint.h> |
252b5132 RH |
89 | |
90 | #define DEF_SIZE 5000 | |
91 | #define STACK 50 | |
92 | ||
d70910e8 | 93 | /* Here is a string type ... */ |
252b5132 | 94 | |
d70910e8 | 95 | typedef struct buffer |
252b5132 RH |
96 | { |
97 | char *ptr; | |
98 | unsigned long write_idx; | |
99 | unsigned long size; | |
100 | } string_type; | |
101 | ||
eab286a7 AM |
102 | /* Compiled programs consist of arrays of these. */ |
103 | ||
104 | typedef union | |
105 | { | |
106 | void (*f) (void); | |
107 | struct dict_struct *e; | |
108 | char *s; | |
126eff23 | 109 | intptr_t l; |
eab286a7 | 110 | } pcu; |
b9b0b2b5 AM |
111 | |
112 | typedef struct dict_struct | |
113 | { | |
114 | char *word; | |
115 | struct dict_struct *next; | |
eab286a7 | 116 | pcu *code; |
b9b0b2b5 AM |
117 | int code_length; |
118 | int code_end; | |
119 | } dict_type; | |
120 | ||
121 | int internal_wanted; | |
126eff23 | 122 | intptr_t internal_mode; |
b9b0b2b5 AM |
123 | |
124 | int warning; | |
125 | ||
126 | string_type stack[STACK]; | |
127 | string_type *tos; | |
128 | ||
129 | unsigned int idx = 0; /* Pos in input buffer */ | |
130 | string_type *ptr; /* and the buffer */ | |
131 | ||
126eff23 TT |
132 | intptr_t istack[STACK]; |
133 | intptr_t *isp = &istack[0]; | |
b9b0b2b5 AM |
134 | |
135 | dict_type *root; | |
136 | ||
eab286a7 | 137 | pcu *pc; |
b9b0b2b5 | 138 | |
b9b0b2b5 | 139 | static void |
f43ffe07 | 140 | die (char *msg) |
b9b0b2b5 AM |
141 | { |
142 | fprintf (stderr, "%s\n", msg); | |
143 | exit (1); | |
144 | } | |
145 | ||
b0de9ed8 AM |
146 | void * |
147 | xmalloc (size_t size) | |
148 | { | |
149 | void *newmem; | |
150 | ||
151 | if (size == 0) | |
152 | size = 1; | |
153 | newmem = malloc (size); | |
154 | if (!newmem) | |
155 | die ("out of memory"); | |
156 | ||
157 | return newmem; | |
158 | } | |
159 | ||
160 | void * | |
161 | xrealloc (void *oldmem, size_t size) | |
162 | { | |
163 | void *newmem; | |
164 | ||
165 | if (size == 0) | |
166 | size = 1; | |
167 | if (!oldmem) | |
168 | newmem = malloc (size); | |
169 | else | |
170 | newmem = realloc (oldmem, size); | |
171 | if (!newmem) | |
172 | die ("out of memory"); | |
173 | ||
174 | return newmem; | |
175 | } | |
176 | ||
177 | char * | |
178 | xstrdup (const char *s) | |
179 | { | |
180 | size_t len = strlen (s) + 1; | |
181 | char *ret = xmalloc (len); | |
182 | return memcpy (ret, s, len); | |
183 | } | |
184 | ||
256d98af | 185 | static void |
f43ffe07 | 186 | init_string_with_size (string_type *buffer, unsigned int size) |
252b5132 | 187 | { |
d70910e8 KH |
188 | buffer->write_idx = 0; |
189 | buffer->size = size; | |
7273d78f | 190 | buffer->ptr = xmalloc (size); |
252b5132 RH |
191 | } |
192 | ||
256d98af | 193 | static void |
f43ffe07 | 194 | init_string (string_type *buffer) |
252b5132 | 195 | { |
d70910e8 | 196 | init_string_with_size (buffer, DEF_SIZE); |
252b5132 RH |
197 | } |
198 | ||
256d98af | 199 | static int |
f43ffe07 | 200 | find (string_type *str, char *what) |
252b5132 | 201 | { |
d70910e8 KH |
202 | unsigned int i; |
203 | char *p; | |
204 | p = what; | |
205 | for (i = 0; i < str->write_idx && *p; i++) | |
252b5132 | 206 | { |
d70910e8 KH |
207 | if (*p == str->ptr[i]) |
208 | p++; | |
209 | else | |
210 | p = what; | |
252b5132 | 211 | } |
d70910e8 | 212 | return (*p == 0); |
252b5132 RH |
213 | } |
214 | ||
256d98af | 215 | static void |
f43ffe07 | 216 | write_buffer (string_type *buffer, FILE *f) |
252b5132 | 217 | { |
5375ec41 AM |
218 | if (buffer->write_idx != 0 |
219 | && fwrite (buffer->ptr, buffer->write_idx, 1, f) != 1) | |
220 | die ("cannot write output"); | |
252b5132 RH |
221 | } |
222 | ||
256d98af | 223 | static void |
f43ffe07 | 224 | delete_string (string_type *buffer) |
252b5132 | 225 | { |
c9594989 | 226 | free (buffer->ptr); |
8a286b63 | 227 | buffer->ptr = NULL; |
252b5132 RH |
228 | } |
229 | ||
256d98af | 230 | static char * |
f43ffe07 | 231 | addr (string_type *buffer, unsigned int idx) |
252b5132 | 232 | { |
d70910e8 | 233 | return buffer->ptr + idx; |
252b5132 RH |
234 | } |
235 | ||
256d98af | 236 | static char |
f43ffe07 | 237 | at (string_type *buffer, unsigned int pos) |
252b5132 | 238 | { |
d70910e8 | 239 | if (pos >= buffer->write_idx) |
252b5132 RH |
240 | return 0; |
241 | return buffer->ptr[pos]; | |
242 | } | |
243 | ||
256d98af | 244 | static void |
f43ffe07 | 245 | catchar (string_type *buffer, int ch) |
252b5132 | 246 | { |
d70910e8 | 247 | if (buffer->write_idx == buffer->size) |
252b5132 | 248 | { |
d70910e8 | 249 | buffer->size *= 2; |
7273d78f | 250 | buffer->ptr = xrealloc (buffer->ptr, buffer->size); |
252b5132 RH |
251 | } |
252 | ||
d70910e8 | 253 | buffer->ptr[buffer->write_idx++] = ch; |
252b5132 RH |
254 | } |
255 | ||
256d98af | 256 | static void |
f43ffe07 | 257 | overwrite_string (string_type *dst, string_type *src) |
252b5132 | 258 | { |
d70910e8 KH |
259 | free (dst->ptr); |
260 | dst->size = src->size; | |
261 | dst->write_idx = src->write_idx; | |
262 | dst->ptr = src->ptr; | |
252b5132 RH |
263 | } |
264 | ||
256d98af | 265 | static void |
f43ffe07 | 266 | catbuf (string_type *buffer, char *buf, unsigned int len) |
252b5132 RH |
267 | { |
268 | if (buffer->write_idx + len >= buffer->size) | |
269 | { | |
270 | while (buffer->write_idx + len >= buffer->size) | |
271 | buffer->size *= 2; | |
7273d78f | 272 | buffer->ptr = xrealloc (buffer->ptr, buffer->size); |
252b5132 RH |
273 | } |
274 | memcpy (buffer->ptr + buffer->write_idx, buf, len); | |
275 | buffer->write_idx += len; | |
276 | } | |
277 | ||
256d98af | 278 | static void |
f43ffe07 | 279 | cattext (string_type *buffer, char *string) |
252b5132 RH |
280 | { |
281 | catbuf (buffer, string, (unsigned int) strlen (string)); | |
282 | } | |
283 | ||
256d98af | 284 | static void |
f43ffe07 | 285 | catstr (string_type *dst, string_type *src) |
252b5132 RH |
286 | { |
287 | catbuf (dst, src->ptr, src->write_idx); | |
288 | } | |
289 | ||
d70910e8 | 290 | static unsigned int |
f43ffe07 | 291 | skip_white_and_stars (string_type *src, unsigned int idx) |
252b5132 RH |
292 | { |
293 | char c; | |
d70910e8 | 294 | while ((c = at (src, idx)), |
252b5132 RH |
295 | isspace ((unsigned char) c) |
296 | || (c == '*' | |
297 | /* Don't skip past end-of-comment or star as first | |
298 | character on its line. */ | |
d70910e8 KH |
299 | && at (src, idx +1) != '/' |
300 | && at (src, idx -1) != '\n')) | |
252b5132 RH |
301 | idx++; |
302 | return idx; | |
303 | } | |
304 | ||
aaffae57 | 305 | static unsigned int |
f43ffe07 | 306 | skip_past_newline_1 (string_type *ptr, unsigned int idx) |
aaffae57 DE |
307 | { |
308 | while (at (ptr, idx) | |
309 | && at (ptr, idx) != '\n') | |
310 | idx++; | |
311 | if (at (ptr, idx) == '\n') | |
312 | return idx + 1; | |
313 | return idx; | |
314 | } | |
315 | ||
252b5132 | 316 | static void |
f43ffe07 | 317 | check_range (void) |
252b5132 RH |
318 | { |
319 | if (tos < stack) | |
320 | die ("underflow in string stack"); | |
321 | if (tos >= stack + STACK) | |
322 | die ("overflow in string stack"); | |
323 | } | |
324 | ||
325 | static void | |
f43ffe07 | 326 | icheck_range (void) |
252b5132 RH |
327 | { |
328 | if (isp < istack) | |
329 | die ("underflow in integer stack"); | |
330 | if (isp >= istack + STACK) | |
331 | die ("overflow in integer stack"); | |
332 | } | |
333 | ||
256d98af | 334 | static void |
f43ffe07 | 335 | exec (dict_type *word) |
252b5132 RH |
336 | { |
337 | pc = word->code; | |
eab286a7 AM |
338 | while (pc->f) |
339 | pc->f (); | |
252b5132 | 340 | } |
d70910e8 | 341 | |
9ee6f9cc | 342 | static void |
f43ffe07 | 343 | call (void) |
d70910e8 | 344 | { |
eab286a7 AM |
345 | pcu *oldpc = pc; |
346 | dict_type *e = pc[1].e; | |
d70910e8 KH |
347 | exec (e); |
348 | pc = oldpc + 2; | |
252b5132 RH |
349 | } |
350 | ||
9ee6f9cc | 351 | static void |
f43ffe07 | 352 | remchar (void) |
252b5132 RH |
353 | { |
354 | if (tos->write_idx) | |
d70910e8 | 355 | tos->write_idx--; |
252b5132 RH |
356 | pc++; |
357 | } | |
358 | ||
359 | static void | |
f43ffe07 | 360 | strip_trailing_newlines (void) |
252b5132 RH |
361 | { |
362 | while ((isspace ((unsigned char) at (tos, tos->write_idx - 1)) | |
363 | || at (tos, tos->write_idx - 1) == '\n') | |
364 | && tos->write_idx > 0) | |
365 | tos->write_idx--; | |
366 | pc++; | |
367 | } | |
368 | ||
9ee6f9cc | 369 | static void |
f43ffe07 | 370 | push_number (void) |
252b5132 | 371 | { |
d70910e8 KH |
372 | isp++; |
373 | icheck_range (); | |
374 | pc++; | |
eab286a7 | 375 | *isp = pc->l; |
d70910e8 | 376 | pc++; |
252b5132 RH |
377 | } |
378 | ||
9ee6f9cc | 379 | static void |
f43ffe07 | 380 | push_text (void) |
252b5132 | 381 | { |
d70910e8 KH |
382 | tos++; |
383 | check_range (); | |
384 | init_string (tos); | |
385 | pc++; | |
eab286a7 | 386 | cattext (tos, pc->s); |
d70910e8 | 387 | pc++; |
252b5132 RH |
388 | } |
389 | ||
252b5132 RH |
390 | /* This function removes everything not inside comments starting on |
391 | the first char of the line from the string, also when copying | |
392 | comments, removes blank space and leading *'s. | |
393 | Blank lines are turned into one blank line. */ | |
394 | ||
d70910e8 | 395 | static void |
f43ffe07 | 396 | remove_noncomments (string_type *src, string_type *dst) |
252b5132 | 397 | { |
d70910e8 KH |
398 | unsigned int idx = 0; |
399 | ||
400 | while (at (src, idx)) | |
252b5132 | 401 | { |
d70910e8 KH |
402 | /* Now see if we have a comment at the start of the line. */ |
403 | if (at (src, idx) == '\n' | |
404 | && at (src, idx + 1) == '/' | |
405 | && at (src, idx + 2) == '*') | |
252b5132 | 406 | { |
d70910e8 KH |
407 | idx += 3; |
408 | ||
409 | idx = skip_white_and_stars (src, idx); | |
410 | ||
411 | /* Remove leading dot */ | |
412 | if (at (src, idx) == '.') | |
413 | idx++; | |
414 | ||
415 | /* Copy to the end of the line, or till the end of the | |
416 | comment. */ | |
417 | while (at (src, idx)) | |
252b5132 | 418 | { |
d70910e8 | 419 | if (at (src, idx) == '\n') |
252b5132 | 420 | { |
d70910e8 KH |
421 | /* end of line, echo and scrape of leading blanks */ |
422 | if (at (src, idx + 1) == '\n') | |
423 | catchar (dst, '\n'); | |
424 | catchar (dst, '\n'); | |
425 | idx++; | |
426 | idx = skip_white_and_stars (src, idx); | |
252b5132 | 427 | } |
d70910e8 | 428 | else if (at (src, idx) == '*' && at (src, idx + 1) == '/') |
252b5132 | 429 | { |
d70910e8 KH |
430 | idx += 2; |
431 | cattext (dst, "\nENDDD\n"); | |
432 | break; | |
252b5132 | 433 | } |
d70910e8 | 434 | else |
252b5132 | 435 | { |
d70910e8 KH |
436 | catchar (dst, at (src, idx)); |
437 | idx++; | |
252b5132 RH |
438 | } |
439 | } | |
440 | } | |
d70910e8 KH |
441 | else |
442 | idx++; | |
252b5132 RH |
443 | } |
444 | } | |
445 | ||
446 | static void | |
f43ffe07 | 447 | print_stack_level (void) |
252b5132 | 448 | { |
13ce3c11 AM |
449 | fprintf (stderr, "current string stack depth = %ld, ", |
450 | (long) (tos - stack)); | |
451 | fprintf (stderr, "current integer stack depth = %ld\n", | |
452 | (long) (isp - istack)); | |
252b5132 RH |
453 | pc++; |
454 | } | |
455 | ||
252b5132 RH |
456 | /* turn {* |
457 | and *} into comments */ | |
458 | ||
9ee6f9cc | 459 | static void |
f43ffe07 | 460 | translatecomments (void) |
252b5132 | 461 | { |
d70910e8 KH |
462 | unsigned int idx = 0; |
463 | string_type out; | |
464 | init_string (&out); | |
465 | ||
466 | while (at (tos, idx)) | |
252b5132 | 467 | { |
d70910e8 | 468 | if (at (tos, idx) == '{' && at (tos, idx + 1) == '*') |
252b5132 | 469 | { |
d70910e8 KH |
470 | cattext (&out, "/*"); |
471 | idx += 2; | |
252b5132 | 472 | } |
d70910e8 | 473 | else if (at (tos, idx) == '*' && at (tos, idx + 1) == '}') |
252b5132 | 474 | { |
d70910e8 KH |
475 | cattext (&out, "*/"); |
476 | idx += 2; | |
252b5132 | 477 | } |
d70910e8 | 478 | else |
252b5132 | 479 | { |
d70910e8 KH |
480 | catchar (&out, at (tos, idx)); |
481 | idx++; | |
252b5132 RH |
482 | } |
483 | } | |
484 | ||
d70910e8 | 485 | overwrite_string (tos, &out); |
252b5132 | 486 | |
d70910e8 | 487 | pc++; |
252b5132 RH |
488 | } |
489 | ||
252b5132 RH |
490 | /* Mod tos so that only lines with leading dots remain */ |
491 | static void | |
f43ffe07 | 492 | outputdots (void) |
252b5132 | 493 | { |
d70910e8 KH |
494 | unsigned int idx = 0; |
495 | string_type out; | |
496 | init_string (&out); | |
497 | ||
498 | while (at (tos, idx)) | |
252b5132 | 499 | { |
aaffae57 DE |
500 | /* Every iteration begins at the start of a line. */ |
501 | if (at (tos, idx) == '.') | |
252b5132 RH |
502 | { |
503 | char c; | |
aaffae57 DE |
504 | |
505 | idx++; | |
d70910e8 KH |
506 | |
507 | while ((c = at (tos, idx)) && c != '\n') | |
252b5132 | 508 | { |
d70910e8 | 509 | if (c == '{' && at (tos, idx + 1) == '*') |
252b5132 | 510 | { |
d70910e8 KH |
511 | cattext (&out, "/*"); |
512 | idx += 2; | |
252b5132 | 513 | } |
d70910e8 | 514 | else if (c == '*' && at (tos, idx + 1) == '}') |
252b5132 | 515 | { |
d70910e8 KH |
516 | cattext (&out, "*/"); |
517 | idx += 2; | |
252b5132 RH |
518 | } |
519 | else | |
520 | { | |
d70910e8 KH |
521 | catchar (&out, c); |
522 | idx++; | |
252b5132 RH |
523 | } |
524 | } | |
aaffae57 DE |
525 | if (c == '\n') |
526 | idx++; | |
d70910e8 | 527 | catchar (&out, '\n'); |
252b5132 | 528 | } |
d70910e8 | 529 | else |
252b5132 | 530 | { |
aaffae57 | 531 | idx = skip_past_newline_1 (tos, idx); |
252b5132 | 532 | } |
d70910e8 | 533 | } |
252b5132 | 534 | |
d70910e8 KH |
535 | overwrite_string (tos, &out); |
536 | pc++; | |
252b5132 RH |
537 | } |
538 | ||
539 | /* Find lines starting with . and | and put example around them on tos */ | |
9ee6f9cc | 540 | static void |
f43ffe07 | 541 | courierize (void) |
d70910e8 KH |
542 | { |
543 | string_type out; | |
544 | unsigned int idx = 0; | |
545 | int command = 0; | |
546 | ||
547 | init_string (&out); | |
548 | ||
549 | while (at (tos, idx)) | |
252b5132 | 550 | { |
d70910e8 KH |
551 | if (at (tos, idx) == '\n' |
552 | && (at (tos, idx +1 ) == '.' | |
553 | || at (tos, idx + 1) == '|')) | |
252b5132 | 554 | { |
d70910e8 KH |
555 | cattext (&out, "\n@example\n"); |
556 | do | |
252b5132 | 557 | { |
d70910e8 KH |
558 | idx += 2; |
559 | ||
560 | while (at (tos, idx) && at (tos, idx) != '\n') | |
252b5132 | 561 | { |
ba994a14 AM |
562 | if (command > 1) |
563 | { | |
564 | /* We are inside {} parameters of some command; | |
565 | Just pass through until matching brace. */ | |
566 | if (at (tos, idx) == '{') | |
567 | ++command; | |
568 | else if (at (tos, idx) == '}') | |
569 | --command; | |
570 | } | |
571 | else if (command != 0) | |
572 | { | |
573 | if (at (tos, idx) == '{') | |
574 | ++command; | |
575 | else if (!islower ((unsigned char) at (tos, idx))) | |
576 | --command; | |
577 | } | |
578 | else if (at (tos, idx) == '@' | |
579 | && islower ((unsigned char) at (tos, idx + 1))) | |
580 | { | |
581 | ++command; | |
582 | } | |
583 | else if (at (tos, idx) == '{' && at (tos, idx + 1) == '*') | |
252b5132 | 584 | { |
d70910e8 KH |
585 | cattext (&out, "/*"); |
586 | idx += 2; | |
ba994a14 | 587 | continue; |
252b5132 | 588 | } |
d70910e8 | 589 | else if (at (tos, idx) == '*' && at (tos, idx + 1) == '}') |
252b5132 | 590 | { |
d70910e8 KH |
591 | cattext (&out, "*/"); |
592 | idx += 2; | |
ba994a14 | 593 | continue; |
252b5132 | 594 | } |
ba994a14 AM |
595 | else if (at (tos, idx) == '{' |
596 | || at (tos, idx) == '}') | |
252b5132 | 597 | { |
ba994a14 | 598 | catchar (&out, '@'); |
252b5132 | 599 | } |
d70910e8 | 600 | |
ba994a14 AM |
601 | catchar (&out, at (tos, idx)); |
602 | idx++; | |
252b5132 | 603 | } |
d70910e8 KH |
604 | catchar (&out, '\n'); |
605 | } | |
606 | while (at (tos, idx) == '\n' | |
607 | && ((at (tos, idx + 1) == '.') | |
608 | || (at (tos, idx + 1) == '|'))) | |
609 | ; | |
610 | cattext (&out, "@end example"); | |
252b5132 | 611 | } |
d70910e8 KH |
612 | else |
613 | { | |
614 | catchar (&out, at (tos, idx)); | |
615 | idx++; | |
252b5132 | 616 | } |
d70910e8 | 617 | } |
252b5132 | 618 | |
d70910e8 KH |
619 | overwrite_string (tos, &out); |
620 | pc++; | |
252b5132 RH |
621 | } |
622 | ||
623 | /* Finds any lines starting with "o ", if there are any, then turns | |
624 | on @itemize @bullet, and @items each of them. Then ends with @end | |
625 | itemize, inplace at TOS*/ | |
626 | ||
9ee6f9cc | 627 | static void |
f43ffe07 | 628 | bulletize (void) |
252b5132 | 629 | { |
d70910e8 KH |
630 | unsigned int idx = 0; |
631 | int on = 0; | |
632 | string_type out; | |
633 | init_string (&out); | |
634 | ||
635 | while (at (tos, idx)) | |
636 | { | |
637 | if (at (tos, idx) == '@' | |
638 | && at (tos, idx + 1) == '*') | |
252b5132 | 639 | { |
d70910e8 KH |
640 | cattext (&out, "*"); |
641 | idx += 2; | |
252b5132 | 642 | } |
d70910e8 KH |
643 | else if (at (tos, idx) == '\n' |
644 | && at (tos, idx + 1) == 'o' | |
645 | && isspace ((unsigned char) at (tos, idx + 2))) | |
646 | { | |
647 | if (!on) | |
252b5132 | 648 | { |
d70910e8 KH |
649 | cattext (&out, "\n@itemize @bullet\n"); |
650 | on = 1; | |
651 | ||
252b5132 | 652 | } |
d70910e8 KH |
653 | cattext (&out, "\n@item\n"); |
654 | idx += 3; | |
655 | } | |
656 | else | |
657 | { | |
658 | catchar (&out, at (tos, idx)); | |
659 | if (on && at (tos, idx) == '\n' | |
660 | && at (tos, idx + 1) == '\n' | |
661 | && at (tos, idx + 2) != 'o') | |
252b5132 | 662 | { |
d70910e8 KH |
663 | cattext (&out, "@end itemize"); |
664 | on = 0; | |
252b5132 | 665 | } |
d70910e8 KH |
666 | idx++; |
667 | ||
252b5132 | 668 | } |
d70910e8 KH |
669 | } |
670 | if (on) | |
252b5132 | 671 | { |
d70910e8 KH |
672 | cattext (&out, "@end itemize\n"); |
673 | } | |
252b5132 | 674 | |
d70910e8 KH |
675 | delete_string (tos); |
676 | *tos = out; | |
677 | pc++; | |
252b5132 RH |
678 | } |
679 | ||
680 | /* Turn <<foo>> into @code{foo} in place at TOS*/ | |
252b5132 | 681 | |
9ee6f9cc | 682 | static void |
f43ffe07 | 683 | do_fancy_stuff (void) |
252b5132 | 684 | { |
d70910e8 KH |
685 | unsigned int idx = 0; |
686 | string_type out; | |
687 | init_string (&out); | |
688 | while (at (tos, idx)) | |
252b5132 | 689 | { |
d70910e8 KH |
690 | if (at (tos, idx) == '<' |
691 | && at (tos, idx + 1) == '<' | |
692 | && !isspace ((unsigned char) at (tos, idx + 2))) | |
252b5132 | 693 | { |
d70910e8 KH |
694 | /* This qualifies as a << startup. */ |
695 | idx += 2; | |
696 | cattext (&out, "@code{"); | |
697 | while (at (tos, idx) | |
698 | && at (tos, idx) != '>' ) | |
252b5132 | 699 | { |
d70910e8 KH |
700 | catchar (&out, at (tos, idx)); |
701 | idx++; | |
702 | ||
252b5132 | 703 | } |
d70910e8 KH |
704 | cattext (&out, "}"); |
705 | idx += 2; | |
252b5132 | 706 | } |
d70910e8 | 707 | else |
252b5132 | 708 | { |
d70910e8 KH |
709 | catchar (&out, at (tos, idx)); |
710 | idx++; | |
252b5132 RH |
711 | } |
712 | } | |
d70910e8 KH |
713 | delete_string (tos); |
714 | *tos = out; | |
715 | pc++; | |
716 | ||
252b5132 | 717 | } |
d70910e8 KH |
718 | |
719 | /* A command is all upper case,and alone on a line. */ | |
720 | ||
721 | static int | |
f43ffe07 | 722 | iscommand (string_type *ptr, unsigned int idx) |
252b5132 | 723 | { |
d70910e8 KH |
724 | unsigned int len = 0; |
725 | while (at (ptr, idx)) | |
726 | { | |
727 | if (isupper ((unsigned char) at (ptr, idx)) | |
728 | || at (ptr, idx) == ' ' || at (ptr, idx) == '_') | |
729 | { | |
730 | len++; | |
731 | idx++; | |
252b5132 | 732 | } |
d70910e8 KH |
733 | else if (at (ptr, idx) == '\n') |
734 | { | |
735 | if (len > 3) | |
736 | return 1; | |
737 | return 0; | |
738 | } | |
739 | else | |
740 | return 0; | |
741 | } | |
742 | return 0; | |
252b5132 RH |
743 | } |
744 | ||
252b5132 | 745 | static int |
f43ffe07 | 746 | copy_past_newline (string_type *ptr, unsigned int idx, string_type *dst) |
252b5132 | 747 | { |
d70910e8 | 748 | int column = 0; |
252b5132 | 749 | |
d70910e8 | 750 | while (at (ptr, idx) && at (ptr, idx) != '\n') |
252b5132 | 751 | { |
d70910e8 KH |
752 | if (at (ptr, idx) == '\t') |
753 | { | |
754 | /* Expand tabs. Neither makeinfo nor TeX can cope well with | |
755 | them. */ | |
756 | do | |
757 | catchar (dst, ' '); | |
758 | while (++column & 7); | |
759 | } | |
760 | else | |
761 | { | |
762 | catchar (dst, at (ptr, idx)); | |
763 | column++; | |
764 | } | |
765 | idx++; | |
766 | ||
767 | } | |
768 | catchar (dst, at (ptr, idx)); | |
769 | idx++; | |
770 | return idx; | |
252b5132 RH |
771 | |
772 | } | |
773 | ||
9ee6f9cc | 774 | static void |
f43ffe07 | 775 | icopy_past_newline (void) |
252b5132 | 776 | { |
d70910e8 KH |
777 | tos++; |
778 | check_range (); | |
779 | init_string (tos); | |
780 | idx = copy_past_newline (ptr, idx, tos); | |
781 | pc++; | |
252b5132 RH |
782 | } |
783 | ||
784 | /* indent | |
d70910e8 | 785 | Take the string at the top of the stack, do some prettying. */ |
252b5132 | 786 | |
9ee6f9cc | 787 | static void |
f43ffe07 | 788 | kill_bogus_lines (void) |
252b5132 | 789 | { |
d70910e8 KH |
790 | int sl; |
791 | ||
792 | int idx = 0; | |
793 | int c; | |
794 | int dot = 0; | |
795 | ||
796 | string_type out; | |
797 | init_string (&out); | |
798 | /* Drop leading nl. */ | |
799 | while (at (tos, idx) == '\n') | |
252b5132 | 800 | { |
d70910e8 | 801 | idx++; |
252b5132 | 802 | } |
d70910e8 KH |
803 | c = idx; |
804 | ||
805 | /* If the first char is a '.' prepend a newline so that it is | |
806 | recognized properly later. */ | |
807 | if (at (tos, idx) == '.') | |
808 | catchar (&out, '\n'); | |
809 | ||
810 | /* Find the last char. */ | |
811 | while (at (tos, idx)) | |
252b5132 | 812 | { |
d70910e8 | 813 | idx++; |
252b5132 | 814 | } |
d70910e8 KH |
815 | |
816 | /* Find the last non white before the nl. */ | |
817 | idx--; | |
818 | ||
819 | while (idx && isspace ((unsigned char) at (tos, idx))) | |
252b5132 | 820 | idx--; |
d70910e8 | 821 | idx++; |
252b5132 | 822 | |
d70910e8 KH |
823 | /* Copy buffer upto last char, but blank lines before and after |
824 | dots don't count. */ | |
825 | sl = 1; | |
826 | ||
827 | while (c < idx) | |
252b5132 | 828 | { |
d70910e8 KH |
829 | if (at (tos, c) == '\n' |
830 | && at (tos, c + 1) == '\n' | |
831 | && at (tos, c + 2) == '.') | |
252b5132 | 832 | { |
d70910e8 KH |
833 | /* Ignore two newlines before a dot. */ |
834 | c++; | |
252b5132 | 835 | } |
d70910e8 | 836 | else if (at (tos, c) == '.' && sl) |
252b5132 | 837 | { |
d70910e8 KH |
838 | /* remember that this line started with a dot. */ |
839 | dot = 2; | |
252b5132 | 840 | } |
d70910e8 KH |
841 | else if (at (tos, c) == '\n' |
842 | && at (tos, c + 1) == '\n' | |
843 | && dot) | |
252b5132 | 844 | { |
d70910e8 KH |
845 | c++; |
846 | /* Ignore two newlines when last line was dot. */ | |
252b5132 RH |
847 | } |
848 | ||
d70910e8 KH |
849 | catchar (&out, at (tos, c)); |
850 | if (at (tos, c) == '\n') | |
252b5132 | 851 | { |
d70910e8 KH |
852 | sl = 1; |
853 | ||
854 | if (dot == 2) | |
855 | dot = 1; | |
856 | else | |
857 | dot = 0; | |
252b5132 | 858 | } |
d70910e8 KH |
859 | else |
860 | sl = 0; | |
861 | ||
862 | c++; | |
252b5132 RH |
863 | |
864 | } | |
d70910e8 KH |
865 | |
866 | /* Append nl. */ | |
867 | catchar (&out, '\n'); | |
868 | pc++; | |
869 | delete_string (tos); | |
870 | *tos = out; | |
871 | ||
252b5132 RH |
872 | } |
873 | ||
9ee6f9cc | 874 | static void |
f43ffe07 | 875 | indent (void) |
252b5132 | 876 | { |
d70910e8 KH |
877 | string_type out; |
878 | int tab = 0; | |
879 | int idx = 0; | |
880 | int ol = 0; | |
881 | init_string (&out); | |
882 | while (at (tos, idx)) | |
883 | { | |
884 | switch (at (tos, idx)) | |
885 | { | |
886 | case '\n': | |
887 | cattext (&out, "\n"); | |
888 | idx++; | |
889 | if (tab && at (tos, idx)) | |
252b5132 | 890 | { |
d70910e8 | 891 | cattext (&out, " "); |
252b5132 | 892 | } |
d70910e8 KH |
893 | ol = 0; |
894 | break; | |
895 | case '(': | |
896 | tab++; | |
897 | if (ol == 0) | |
898 | cattext (&out, " "); | |
899 | idx++; | |
900 | cattext (&out, "("); | |
901 | ol = 1; | |
902 | break; | |
903 | case ')': | |
904 | tab--; | |
905 | cattext (&out, ")"); | |
906 | idx++; | |
907 | ol = 1; | |
908 | ||
909 | break; | |
910 | default: | |
911 | catchar (&out, at (tos, idx)); | |
912 | ol = 1; | |
913 | ||
914 | idx++; | |
915 | break; | |
916 | } | |
917 | } | |
252b5132 | 918 | |
d70910e8 KH |
919 | pc++; |
920 | delete_string (tos); | |
921 | *tos = out; | |
252b5132 RH |
922 | |
923 | } | |
924 | ||
9ee6f9cc | 925 | static void |
f43ffe07 | 926 | get_stuff_in_command (void) |
252b5132 | 927 | { |
d70910e8 KH |
928 | tos++; |
929 | check_range (); | |
930 | init_string (tos); | |
252b5132 | 931 | |
d70910e8 KH |
932 | while (at (ptr, idx)) |
933 | { | |
934 | if (iscommand (ptr, idx)) | |
935 | break; | |
936 | idx = copy_past_newline (ptr, idx, tos); | |
937 | } | |
938 | pc++; | |
252b5132 RH |
939 | } |
940 | ||
9ee6f9cc | 941 | static void |
f43ffe07 | 942 | swap (void) |
252b5132 | 943 | { |
d70910e8 KH |
944 | string_type t; |
945 | ||
946 | t = tos[0]; | |
947 | tos[0] = tos[-1]; | |
948 | tos[-1] = t; | |
949 | pc++; | |
252b5132 RH |
950 | } |
951 | ||
9ee6f9cc | 952 | static void |
f43ffe07 | 953 | other_dup (void) |
252b5132 | 954 | { |
d70910e8 KH |
955 | tos++; |
956 | check_range (); | |
957 | init_string (tos); | |
958 | catstr (tos, tos - 1); | |
959 | pc++; | |
252b5132 RH |
960 | } |
961 | ||
9ee6f9cc | 962 | static void |
f43ffe07 | 963 | drop (void) |
252b5132 RH |
964 | { |
965 | tos--; | |
966 | check_range (); | |
8a286b63 | 967 | delete_string (tos + 1); |
252b5132 RH |
968 | pc++; |
969 | } | |
970 | ||
9ee6f9cc | 971 | static void |
f43ffe07 | 972 | idrop (void) |
252b5132 RH |
973 | { |
974 | isp--; | |
975 | icheck_range (); | |
976 | pc++; | |
977 | } | |
978 | ||
9ee6f9cc | 979 | static void |
f43ffe07 | 980 | icatstr (void) |
252b5132 | 981 | { |
d70910e8 KH |
982 | tos--; |
983 | check_range (); | |
984 | catstr (tos, tos + 1); | |
985 | delete_string (tos + 1); | |
986 | pc++; | |
252b5132 RH |
987 | } |
988 | ||
9ee6f9cc | 989 | static void |
f43ffe07 | 990 | skip_past_newline (void) |
252b5132 | 991 | { |
aaffae57 | 992 | idx = skip_past_newline_1 (ptr, idx); |
d70910e8 | 993 | pc++; |
252b5132 RH |
994 | } |
995 | ||
9ee6f9cc | 996 | static void |
f43ffe07 | 997 | internalmode (void) |
252b5132 | 998 | { |
d70910e8 KH |
999 | internal_mode = *(isp); |
1000 | isp--; | |
1001 | icheck_range (); | |
1002 | pc++; | |
252b5132 RH |
1003 | } |
1004 | ||
9ee6f9cc | 1005 | static void |
f43ffe07 | 1006 | maybecatstr (void) |
252b5132 | 1007 | { |
d70910e8 | 1008 | if (internal_wanted == internal_mode) |
252b5132 | 1009 | { |
d70910e8 | 1010 | catstr (tos - 1, tos); |
252b5132 | 1011 | } |
d70910e8 KH |
1012 | delete_string (tos); |
1013 | tos--; | |
1014 | check_range (); | |
1015 | pc++; | |
252b5132 RH |
1016 | } |
1017 | ||
1018 | char * | |
f43ffe07 | 1019 | nextword (char *string, char **word) |
252b5132 | 1020 | { |
d70910e8 KH |
1021 | char *word_start; |
1022 | int idx; | |
1023 | char *dst; | |
1024 | char *src; | |
1025 | ||
1026 | int length = 0; | |
1027 | ||
1028 | while (isspace ((unsigned char) *string) || *string == '-') | |
1029 | { | |
1030 | if (*string == '-') | |
252b5132 | 1031 | { |
d70910e8 | 1032 | while (*string && *string != '\n') |
252b5132 | 1033 | string++; |
d70910e8 KH |
1034 | |
1035 | } | |
1036 | else | |
1037 | { | |
1038 | string++; | |
252b5132 RH |
1039 | } |
1040 | } | |
d70910e8 | 1041 | if (!*string) |
3a70f7e8 T |
1042 | { |
1043 | *word = NULL; | |
1044 | return NULL; | |
1045 | } | |
252b5132 | 1046 | |
d70910e8 KH |
1047 | word_start = string; |
1048 | if (*string == '"') | |
1049 | { | |
1050 | do | |
1051 | { | |
1052 | string++; | |
1053 | length++; | |
1054 | if (*string == '\\') | |
252b5132 | 1055 | { |
d70910e8 KH |
1056 | string += 2; |
1057 | length += 2; | |
252b5132 | 1058 | } |
d70910e8 KH |
1059 | } |
1060 | while (*string != '"'); | |
252b5132 | 1061 | } |
d70910e8 KH |
1062 | else |
1063 | { | |
1064 | while (!isspace ((unsigned char) *string)) | |
1065 | { | |
1066 | string++; | |
1067 | length++; | |
252b5132 | 1068 | |
d70910e8 KH |
1069 | } |
1070 | } | |
252b5132 | 1071 | |
7273d78f | 1072 | *word = xmalloc (length + 1); |
252b5132 | 1073 | |
d70910e8 KH |
1074 | dst = *word; |
1075 | src = word_start; | |
252b5132 | 1076 | |
d70910e8 KH |
1077 | for (idx = 0; idx < length; idx++) |
1078 | { | |
1079 | if (src[idx] == '\\') | |
1080 | switch (src[idx + 1]) | |
1081 | { | |
1082 | case 'n': | |
1083 | *dst++ = '\n'; | |
1084 | idx++; | |
1085 | break; | |
1086 | case '"': | |
1087 | case '\\': | |
1088 | *dst++ = src[idx + 1]; | |
1089 | idx++; | |
1090 | break; | |
1091 | default: | |
1092 | *dst++ = '\\'; | |
1093 | break; | |
1094 | } | |
1095 | else | |
1096 | *dst++ = src[idx]; | |
1097 | } | |
1098 | *dst++ = 0; | |
252b5132 | 1099 | |
d70910e8 KH |
1100 | if (*string) |
1101 | return string + 1; | |
1102 | else | |
3a70f7e8 | 1103 | return NULL; |
252b5132 | 1104 | } |
d70910e8 | 1105 | |
252b5132 | 1106 | dict_type * |
f43ffe07 | 1107 | lookup_word (char *word) |
252b5132 RH |
1108 | { |
1109 | dict_type *ptr = root; | |
d70910e8 KH |
1110 | while (ptr) |
1111 | { | |
1112 | if (strcmp (ptr->word, word) == 0) | |
1113 | return ptr; | |
252b5132 | 1114 | ptr = ptr->next; |
252b5132 RH |
1115 | } |
1116 | if (warning) | |
d70910e8 | 1117 | fprintf (stderr, "Can't find %s\n", word); |
3a70f7e8 | 1118 | return NULL; |
252b5132 RH |
1119 | } |
1120 | ||
8a286b63 NC |
1121 | static void |
1122 | free_words (void) | |
1123 | { | |
1124 | dict_type *ptr = root; | |
1125 | ||
1126 | while (ptr) | |
1127 | { | |
1128 | dict_type *next; | |
1129 | ||
c9594989 | 1130 | free (ptr->word); |
8a286b63 NC |
1131 | if (ptr->code) |
1132 | { | |
1133 | int i; | |
b05971a6 | 1134 | for (i = 0; i < ptr->code_end - 1; i ++) |
eab286a7 AM |
1135 | if (ptr->code[i].f == push_text |
1136 | && ptr->code[i + 1].s) | |
8a286b63 | 1137 | { |
eab286a7 AM |
1138 | free (ptr->code[i + 1].s - 1); |
1139 | ++i; | |
8a286b63 NC |
1140 | } |
1141 | free (ptr->code); | |
1142 | } | |
1143 | next = ptr->next; | |
1144 | free (ptr); | |
1145 | ptr = next; | |
1146 | } | |
1147 | } | |
1148 | ||
256d98af | 1149 | static void |
3a70f7e8 | 1150 | perform (void) |
252b5132 RH |
1151 | { |
1152 | tos = stack; | |
252b5132 | 1153 | |
d70910e8 KH |
1154 | while (at (ptr, idx)) |
1155 | { | |
1156 | /* It's worth looking through the command list. */ | |
1157 | if (iscommand (ptr, idx)) | |
1158 | { | |
1159 | char *next; | |
1160 | dict_type *word; | |
252b5132 | 1161 | |
d70910e8 | 1162 | (void) nextword (addr (ptr, idx), &next); |
252b5132 | 1163 | |
d70910e8 | 1164 | word = lookup_word (next); |
252b5132 | 1165 | |
d70910e8 KH |
1166 | if (word) |
1167 | { | |
1168 | exec (word); | |
1169 | } | |
1170 | else | |
1171 | { | |
1172 | if (warning) | |
1173 | fprintf (stderr, "warning, %s is not recognised\n", next); | |
7eb7e4cd | 1174 | idx = skip_past_newline_1 (ptr, idx); |
d70910e8 | 1175 | } |
b2e951ec | 1176 | free (next); |
252b5132 | 1177 | } |
d70910e8 | 1178 | else |
7eb7e4cd | 1179 | idx = skip_past_newline_1 (ptr, idx); |
252b5132 RH |
1180 | } |
1181 | } | |
1182 | ||
1183 | dict_type * | |
f43ffe07 | 1184 | newentry (char *word) |
252b5132 | 1185 | { |
7273d78f | 1186 | dict_type *new_d = xmalloc (sizeof (*new_d)); |
d3ce72d0 NC |
1187 | new_d->word = word; |
1188 | new_d->next = root; | |
1189 | root = new_d; | |
7273d78f | 1190 | new_d->code = xmalloc (sizeof (*new_d->code)); |
d3ce72d0 NC |
1191 | new_d->code_length = 1; |
1192 | new_d->code_end = 0; | |
1193 | return new_d; | |
252b5132 RH |
1194 | } |
1195 | ||
252b5132 | 1196 | unsigned int |
eab286a7 | 1197 | add_to_definition (dict_type *entry, pcu word) |
252b5132 | 1198 | { |
d70910e8 | 1199 | if (entry->code_end == entry->code_length) |
252b5132 | 1200 | { |
d70910e8 | 1201 | entry->code_length += 2; |
7273d78f AM |
1202 | entry->code = xrealloc (entry->code, |
1203 | entry->code_length * sizeof (*entry->code)); | |
252b5132 | 1204 | } |
d70910e8 | 1205 | entry->code[entry->code_end] = word; |
252b5132 | 1206 | |
d70910e8 KH |
1207 | return entry->code_end++; |
1208 | } | |
252b5132 RH |
1209 | |
1210 | void | |
f43ffe07 | 1211 | add_intrinsic (char *name, void (*func) (void)) |
252b5132 | 1212 | { |
7273d78f | 1213 | dict_type *new_d = newentry (xstrdup (name)); |
eab286a7 AM |
1214 | pcu p = { func }; |
1215 | add_to_definition (new_d, p); | |
1216 | p.f = 0; | |
1217 | add_to_definition (new_d, p); | |
252b5132 RH |
1218 | } |
1219 | ||
d70910e8 | 1220 | void |
f43ffe07 | 1221 | compile (char *string) |
252b5132 | 1222 | { |
d70910e8 KH |
1223 | /* Add words to the dictionary. */ |
1224 | char *word; | |
8a286b63 | 1225 | |
d70910e8 KH |
1226 | string = nextword (string, &word); |
1227 | while (string && *string && word[0]) | |
252b5132 | 1228 | { |
b9b0b2b5 | 1229 | if (word[0] == ':') |
252b5132 | 1230 | { |
d70910e8 | 1231 | dict_type *ptr; |
eab286a7 | 1232 | pcu p; |
8a286b63 | 1233 | |
d70910e8 | 1234 | /* Compile a word and add to dictionary. */ |
8a286b63 | 1235 | free (word); |
d70910e8 | 1236 | string = nextword (string, &word); |
3a70f7e8 T |
1237 | if (!string) |
1238 | continue; | |
d70910e8 KH |
1239 | ptr = newentry (word); |
1240 | string = nextword (string, &word); | |
3a70f7e8 T |
1241 | if (!string) |
1242 | { | |
1243 | free (ptr->code); | |
1244 | free (ptr); | |
1245 | continue; | |
1246 | } | |
8a286b63 | 1247 | |
d70910e8 | 1248 | while (word[0] != ';') |
252b5132 | 1249 | { |
d70910e8 KH |
1250 | switch (word[0]) |
1251 | { | |
1252 | case '"': | |
1253 | /* got a string, embed magic push string | |
1254 | function */ | |
eab286a7 AM |
1255 | p.f = push_text; |
1256 | add_to_definition (ptr, p); | |
1257 | p.s = word + 1; | |
1258 | add_to_definition (ptr, p); | |
d70910e8 KH |
1259 | break; |
1260 | case '0': | |
1261 | case '1': | |
1262 | case '2': | |
1263 | case '3': | |
1264 | case '4': | |
1265 | case '5': | |
1266 | case '6': | |
1267 | case '7': | |
1268 | case '8': | |
1269 | case '9': | |
1270 | /* Got a number, embedd the magic push number | |
1271 | function */ | |
eab286a7 AM |
1272 | p.f = push_number; |
1273 | add_to_definition (ptr, p); | |
1274 | p.l = atol (word); | |
1275 | add_to_definition (ptr, p); | |
8a286b63 | 1276 | free (word); |
d70910e8 KH |
1277 | break; |
1278 | default: | |
eab286a7 AM |
1279 | p.f = call; |
1280 | add_to_definition (ptr, p); | |
1281 | p.e = lookup_word (word); | |
1282 | add_to_definition (ptr, p); | |
8a286b63 | 1283 | free (word); |
d70910e8 KH |
1284 | } |
1285 | ||
1286 | string = nextword (string, &word); | |
252b5132 | 1287 | } |
eab286a7 AM |
1288 | p.f = 0; |
1289 | add_to_definition (ptr, p); | |
8a286b63 | 1290 | free (word); |
d70910e8 | 1291 | string = nextword (string, &word); |
252b5132 | 1292 | } |
d70910e8 | 1293 | else |
252b5132 | 1294 | { |
d70910e8 KH |
1295 | fprintf (stderr, "syntax error at %s\n", string - 1); |
1296 | } | |
252b5132 | 1297 | } |
c9594989 | 1298 | free (word); |
252b5132 RH |
1299 | } |
1300 | ||
256d98af | 1301 | static void |
f43ffe07 | 1302 | bang (void) |
252b5132 | 1303 | { |
126eff23 | 1304 | *(intptr_t *) ((isp[0])) = isp[-1]; |
d70910e8 | 1305 | isp -= 2; |
252b5132 RH |
1306 | icheck_range (); |
1307 | pc++; | |
1308 | } | |
1309 | ||
9ee6f9cc | 1310 | static void |
f43ffe07 | 1311 | atsign (void) |
252b5132 | 1312 | { |
126eff23 | 1313 | isp[0] = *(intptr_t *) (isp[0]); |
d70910e8 | 1314 | pc++; |
252b5132 RH |
1315 | } |
1316 | ||
9ee6f9cc | 1317 | static void |
f43ffe07 | 1318 | hello (void) |
252b5132 | 1319 | { |
d70910e8 KH |
1320 | printf ("hello\n"); |
1321 | pc++; | |
252b5132 RH |
1322 | } |
1323 | ||
9ee6f9cc | 1324 | static void |
f43ffe07 | 1325 | stdout_ (void) |
252b5132 RH |
1326 | { |
1327 | isp++; | |
1328 | icheck_range (); | |
1329 | *isp = 1; | |
1330 | pc++; | |
1331 | } | |
1332 | ||
9ee6f9cc | 1333 | static void |
f43ffe07 | 1334 | stderr_ (void) |
252b5132 RH |
1335 | { |
1336 | isp++; | |
1337 | icheck_range (); | |
1338 | *isp = 2; | |
1339 | pc++; | |
1340 | } | |
1341 | ||
9ee6f9cc | 1342 | static void |
f43ffe07 | 1343 | print (void) |
252b5132 RH |
1344 | { |
1345 | if (*isp == 1) | |
1346 | write_buffer (tos, stdout); | |
1347 | else if (*isp == 2) | |
1348 | write_buffer (tos, stderr); | |
1349 | else | |
1350 | fprintf (stderr, "print: illegal print destination `%ld'\n", *isp); | |
1351 | isp--; | |
1352 | tos--; | |
1353 | icheck_range (); | |
1354 | check_range (); | |
1355 | pc++; | |
1356 | } | |
1357 | ||
256d98af | 1358 | static void |
f43ffe07 | 1359 | read_in (string_type *str, FILE *file) |
252b5132 | 1360 | { |
d70910e8 KH |
1361 | char buff[10000]; |
1362 | unsigned int r; | |
1363 | do | |
252b5132 | 1364 | { |
d70910e8 KH |
1365 | r = fread (buff, 1, sizeof (buff), file); |
1366 | catbuf (str, buff, r); | |
252b5132 | 1367 | } |
d70910e8 KH |
1368 | while (r); |
1369 | buff[0] = 0; | |
252b5132 | 1370 | |
d70910e8 KH |
1371 | catbuf (str, buff, 1); |
1372 | } | |
252b5132 | 1373 | |
256d98af | 1374 | static void |
f43ffe07 | 1375 | usage (void) |
252b5132 | 1376 | { |
d70910e8 KH |
1377 | fprintf (stderr, "usage: -[d|i|g] <file >file\n"); |
1378 | exit (33); | |
252b5132 RH |
1379 | } |
1380 | ||
1381 | /* There is no reliable way to declare exit. Sometimes it returns | |
1382 | int, and sometimes it returns void. Sometimes it changes between | |
1383 | OS releases. Trying to get it declared correctly in the hosts file | |
1384 | is a pointless waste of time. */ | |
1385 | ||
1386 | static void | |
f43ffe07 | 1387 | chew_exit (void) |
252b5132 RH |
1388 | { |
1389 | exit (0); | |
1390 | } | |
1391 | ||
256d98af | 1392 | int |
f43ffe07 | 1393 | main (int ac, char *av[]) |
252b5132 RH |
1394 | { |
1395 | unsigned int i; | |
1396 | string_type buffer; | |
1397 | string_type pptr; | |
1398 | ||
d70910e8 KH |
1399 | init_string (&buffer); |
1400 | init_string (&pptr); | |
1401 | init_string (stack + 0); | |
1402 | tos = stack + 1; | |
252b5132 | 1403 | ptr = &pptr; |
d70910e8 KH |
1404 | |
1405 | add_intrinsic ("push_text", push_text); | |
1406 | add_intrinsic ("!", bang); | |
1407 | add_intrinsic ("@", atsign); | |
1408 | add_intrinsic ("hello", hello); | |
1409 | add_intrinsic ("stdout", stdout_); | |
1410 | add_intrinsic ("stderr", stderr_); | |
1411 | add_intrinsic ("print", print); | |
1412 | add_intrinsic ("skip_past_newline", skip_past_newline); | |
1413 | add_intrinsic ("catstr", icatstr); | |
1414 | add_intrinsic ("copy_past_newline", icopy_past_newline); | |
1415 | add_intrinsic ("dup", other_dup); | |
1416 | add_intrinsic ("drop", drop); | |
1417 | add_intrinsic ("idrop", idrop); | |
1418 | add_intrinsic ("remchar", remchar); | |
1419 | add_intrinsic ("get_stuff_in_command", get_stuff_in_command); | |
1420 | add_intrinsic ("do_fancy_stuff", do_fancy_stuff); | |
1421 | add_intrinsic ("bulletize", bulletize); | |
1422 | add_intrinsic ("courierize", courierize); | |
252b5132 RH |
1423 | /* If the following line gives an error, exit() is not declared in the |
1424 | ../hosts/foo.h file for this host. Fix it there, not here! */ | |
1425 | /* No, don't fix it anywhere; see comment on chew_exit--Ian Taylor. */ | |
d70910e8 KH |
1426 | add_intrinsic ("exit", chew_exit); |
1427 | add_intrinsic ("swap", swap); | |
1428 | add_intrinsic ("outputdots", outputdots); | |
d70910e8 KH |
1429 | add_intrinsic ("maybecatstr", maybecatstr); |
1430 | add_intrinsic ("translatecomments", translatecomments); | |
1431 | add_intrinsic ("kill_bogus_lines", kill_bogus_lines); | |
1432 | add_intrinsic ("indent", indent); | |
1433 | add_intrinsic ("internalmode", internalmode); | |
1434 | add_intrinsic ("print_stack_level", print_stack_level); | |
1435 | add_intrinsic ("strip_trailing_newlines", strip_trailing_newlines); | |
1436 | ||
1437 | /* Put a nl at the start. */ | |
1438 | catchar (&buffer, '\n'); | |
1439 | ||
1440 | read_in (&buffer, stdin); | |
1441 | remove_noncomments (&buffer, ptr); | |
1442 | for (i = 1; i < (unsigned int) ac; i++) | |
252b5132 | 1443 | { |
d70910e8 | 1444 | if (av[i][0] == '-') |
252b5132 | 1445 | { |
d70910e8 KH |
1446 | if (av[i][1] == 'f') |
1447 | { | |
1448 | string_type b; | |
1449 | FILE *f; | |
1450 | init_string (&b); | |
252b5132 | 1451 | |
d70910e8 KH |
1452 | f = fopen (av[i + 1], "r"); |
1453 | if (!f) | |
1454 | { | |
1455 | fprintf (stderr, "Can't open the input file %s\n", | |
1456 | av[i + 1]); | |
1457 | return 33; | |
1458 | } | |
1459 | ||
1460 | read_in (&b, f); | |
1461 | compile (b.ptr); | |
1462 | perform (); | |
5fbe0d87 | 1463 | delete_string (&b); |
d70910e8 KH |
1464 | } |
1465 | else if (av[i][1] == 'i') | |
1466 | { | |
1467 | internal_wanted = 1; | |
1468 | } | |
1469 | else if (av[i][1] == 'w') | |
1470 | { | |
1471 | warning = 1; | |
1472 | } | |
1473 | else | |
1474 | usage (); | |
1475 | } | |
252b5132 | 1476 | } |
d70910e8 | 1477 | write_buffer (stack + 0, stdout); |
8a286b63 NC |
1478 | free_words (); |
1479 | delete_string (&pptr); | |
1480 | delete_string (&buffer); | |
252b5132 RH |
1481 | if (tos != stack) |
1482 | { | |
709bcda1 | 1483 | fprintf (stderr, "finishing with current stack level %ld\n", |
13ce3c11 | 1484 | (long) (tos - stack)); |
252b5132 RH |
1485 | return 1; |
1486 | } | |
1487 | return 0; | |
1488 | } |