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Commit | Line | Data |
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8a0efa53 CF |
1 | /* chew |
2 | Copyright (C) 1990-1992 Free Software Foundation, Inc. | |
3 | Contributed by steve chamberlain @cygnus | |
4 | ||
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* | |
21 | Yet another way of extracting documentation from source. | |
22 | No, I haven't finished it yet, but I hope you people like it better | |
23 | that the old way | |
24 | ||
25 | sac | |
26 | ||
27 | Basically, this is a sort of string forth, maybe we should call it | |
28 | struth? | |
29 | ||
30 | You define new words thus: | |
31 | : <newword> <oldwords> ; | |
32 | There is no | |
33 | ||
34 | */ | |
35 | ||
36 | ||
37 | ||
8a0efa53 | 38 | #include <stdio.h> |
9cd4a2de | 39 | #include <stdlib.h> |
8a0efa53 | 40 | #include <ctype.h> |
3ed024dc | 41 | #include <string.h> |
4fab65dc | 42 | #include <stdint.h> |
8a0efa53 | 43 | |
8a0efa53 CF |
44 | #define DEF_SIZE 5000 |
45 | #define STACK 50 | |
3ed024dc | 46 | #define MIN_CMDLEN 4 /* Minimum length of a command */ |
8a0efa53 CF |
47 | |
48 | int internal_wanted; | |
49 | int internal_mode; | |
3ed024dc | 50 | int Verbose=0; |
8a0efa53 CF |
51 | |
52 | ||
53 | ||
54 | /* Here is a string type ... */ | |
55 | ||
56 | typedef struct buffer | |
57 | { | |
58 | char *ptr; | |
59 | unsigned int write_idx; | |
60 | unsigned int size; | |
61 | } string_type; | |
62 | ||
63 | ||
64 | ||
65 | ||
66 | ||
67 | ||
68 | ||
4cd1905a YS |
69 | static void |
70 | init_string_with_size (string_type *buffer, unsigned int size) | |
8a0efa53 CF |
71 | { |
72 | buffer->write_idx = 0; | |
73 | buffer->size = size; | |
74 | buffer->ptr = malloc(size); | |
75 | } | |
76 | ||
4cd1905a YS |
77 | static void |
78 | init_string (string_type *buffer) | |
8a0efa53 CF |
79 | { |
80 | init_string_with_size(buffer, DEF_SIZE); | |
81 | ||
82 | } | |
83 | ||
4cd1905a YS |
84 | static int |
85 | find (string_type *str, char *what) | |
8a0efa53 CF |
86 | { |
87 | unsigned int i; | |
88 | char *p; | |
89 | p = what; | |
90 | for (i = 0; i < str->write_idx && *p; i++) | |
91 | { | |
92 | if (*p == str->ptr[i]) | |
93 | p++; | |
94 | else | |
95 | p = what; | |
96 | } | |
97 | return (*p == 0); | |
98 | ||
99 | } | |
100 | ||
4cd1905a YS |
101 | static void |
102 | write_buffer (string_type *buffer) | |
8a0efa53 CF |
103 | { |
104 | fwrite(buffer->ptr, buffer->write_idx, 1, stdout); | |
105 | } | |
106 | ||
107 | ||
4cd1905a YS |
108 | static void |
109 | delete_string (string_type *buffer) | |
8a0efa53 CF |
110 | { |
111 | free(buffer->ptr); | |
112 | } | |
113 | ||
114 | ||
4cd1905a YS |
115 | static char * |
116 | addr (string_type *buffer, unsigned int idx) | |
8a0efa53 CF |
117 | { |
118 | return buffer->ptr + idx; | |
119 | } | |
120 | ||
4cd1905a YS |
121 | static char |
122 | at (string_type *buffer, unsigned int pos) | |
8a0efa53 CF |
123 | { |
124 | if ( pos >= buffer->write_idx) | |
125 | { | |
126 | return 0; | |
127 | } | |
128 | return buffer->ptr[pos]; | |
129 | } | |
130 | ||
4cd1905a YS |
131 | static void |
132 | catchar (string_type *buffer, char ch) | |
8a0efa53 CF |
133 | { |
134 | if (buffer->write_idx == buffer->size) | |
135 | { | |
136 | buffer->size *=2; | |
137 | buffer->ptr = realloc(buffer->ptr, buffer->size); | |
90a72f27 JS |
138 | if (!buffer->ptr) |
139 | { | |
140 | fprintf(stderr,"Can't allocate memory\n"); | |
141 | exit(1); | |
142 | } | |
8a0efa53 CF |
143 | } |
144 | ||
145 | buffer->ptr[buffer->write_idx ++ ] = ch; | |
146 | } | |
147 | ||
148 | ||
4cd1905a YS |
149 | static void |
150 | overwrite_string (string_type *dst, string_type *src) | |
8a0efa53 CF |
151 | { |
152 | free(dst->ptr); | |
153 | dst->size = src->size; | |
154 | dst->write_idx = src->write_idx; | |
155 | dst->ptr = src->ptr; | |
156 | } | |
157 | ||
4cd1905a YS |
158 | static void |
159 | catstr (string_type *dst, string_type *src) | |
8a0efa53 CF |
160 | { |
161 | unsigned int i; | |
162 | for (i = 0; i < src->write_idx; i++) | |
163 | { | |
164 | catchar(dst, src->ptr[i]); | |
165 | } | |
166 | } | |
167 | ||
168 | ||
4cd1905a YS |
169 | static void |
170 | cattext (string_type *buffer, char *string) | |
8a0efa53 CF |
171 | { |
172 | ||
173 | while (*string) | |
174 | { | |
175 | catchar(buffer, *string); | |
176 | string++; | |
177 | } | |
178 | } | |
179 | ||
4cd1905a YS |
180 | static void |
181 | catbuf (string_type *buffer, char *buf, unsigned int len) | |
8a0efa53 CF |
182 | { |
183 | ||
184 | while (len--) | |
185 | { | |
186 | catchar(buffer, *buf); | |
187 | buf++; | |
188 | } | |
189 | } | |
190 | ||
191 | ||
192 | ||
193 | static unsigned int | |
4cd1905a | 194 | skip_white_and_stars (string_type *src, unsigned int idx) |
8a0efa53 CF |
195 | { |
196 | while (isspace(at(src,idx)) | |
197 | || (at(src,idx) == '*' && at(src,idx +1) !='/')) | |
198 | idx++; | |
199 | return idx; | |
200 | ||
201 | ||
202 | } | |
203 | /***********************************************************************/ | |
204 | ||
205 | ||
206 | string_type stack[STACK]; | |
207 | string_type *tos; | |
208 | ||
209 | unsigned int idx = 0; /* Pos in input buffer */ | |
210 | string_type *ptr; /* and the buffer */ | |
4cd1905a | 211 | typedef void (*stinst_type)(void); |
8a0efa53 CF |
212 | stinst_type *pc; |
213 | stinst_type sstack[STACK]; | |
214 | stinst_type *ssp = &sstack[0]; | |
4fab65dc JJ |
215 | uintptr_t istack[STACK]; |
216 | uintptr_t *isp = &istack[0]; | |
8a0efa53 | 217 | |
4fab65dc | 218 | typedef uintptr_t *word_type; |
8a0efa53 CF |
219 | |
220 | ||
221 | ||
222 | struct dict_struct | |
223 | { | |
224 | char *word; | |
225 | struct dict_struct *next; | |
226 | stinst_type *code; | |
227 | int code_length; | |
228 | int code_end; | |
229 | int var; | |
230 | ||
231 | }; | |
232 | typedef struct dict_struct dict_type; | |
4cd1905a | 233 | #define WORD(x) static void x(void) |
8a0efa53 | 234 | |
4cd1905a YS |
235 | static void |
236 | exec (dict_type *word) | |
8a0efa53 CF |
237 | { |
238 | pc = word->code; | |
239 | while (*pc) | |
240 | { | |
241 | (*pc)(); | |
242 | } | |
243 | ||
244 | } | |
245 | WORD(call) | |
246 | { | |
247 | stinst_type *oldpc = pc; | |
248 | dict_type *e; | |
249 | e = (dict_type *)(pc [1]); | |
250 | exec(e); | |
251 | pc = oldpc + 2; | |
252 | ||
253 | } | |
254 | ||
255 | WORD(remchar) | |
256 | { | |
257 | tos->write_idx--; | |
258 | pc++; | |
259 | ||
260 | } | |
261 | ||
262 | WORD(push_number) | |
263 | { | |
264 | isp++; | |
265 | pc++; | |
4fab65dc | 266 | *isp = (uintptr_t)(*pc); |
8a0efa53 CF |
267 | pc++; |
268 | ||
269 | } | |
270 | ||
271 | ||
272 | ||
273 | ||
274 | WORD(push_text) | |
275 | { | |
276 | ||
277 | tos++; | |
278 | init_string(tos); | |
279 | pc++; | |
280 | cattext(tos,*((char **)pc)); | |
281 | pc++; | |
282 | ||
283 | } | |
284 | ||
285 | ||
286 | ||
287 | /* This function removes everything not inside comments starting on | |
288 | the first char of the line from the string, also when copying | |
289 | comments, removes blank space and leading *'s | |
290 | Blank lines are turned into one blank line | |
291 | */ | |
292 | ||
293 | static void | |
4cd1905a | 294 | remove_noncomments (string_type *src, string_type *dst) |
8a0efa53 CF |
295 | { |
296 | unsigned int idx = 0; | |
297 | ||
298 | while (at(src,idx)) | |
299 | { | |
300 | /* Now see if we have a comment at the start of the line */ | |
301 | if (at(src,idx) == '\n' | |
302 | && at(src,idx+1) == '/' | |
303 | && at(src,idx+2) == '*') | |
304 | { | |
305 | idx+=3; | |
306 | ||
307 | idx = skip_white_and_stars(src,idx); | |
308 | ||
309 | /* Remove leading dot */ | |
310 | if (at(src, idx) == '.') | |
311 | idx++; | |
312 | ||
313 | /* Copy to the end of the line, or till the end of the | |
314 | comment */ | |
315 | while (at(src, idx)) | |
316 | { | |
317 | if (at(src, idx) == '\n') | |
318 | { | |
319 | /* end of line, echo and scrape of leading blanks */ | |
320 | if (at(src,idx +1) == '\n') | |
321 | catchar(dst,'\n'); | |
322 | catchar(dst,'\n'); | |
323 | idx++; | |
324 | idx = skip_white_and_stars(src, idx); | |
325 | } | |
326 | else if (at(src, idx) == '*' && at(src,idx+1) == '/') | |
327 | { | |
328 | idx +=2 ; | |
329 | cattext(dst,"\nENDDD\n"); | |
330 | break; | |
331 | } | |
332 | else | |
333 | { | |
334 | catchar(dst, at(src, idx)); | |
335 | idx++; | |
336 | } | |
337 | } | |
338 | } | |
339 | else idx++; | |
340 | } | |
341 | } | |
342 | /* turn foobar name(stuff); into foobar EXFUN(name,(stuff)); | |
343 | ||
344 | */ | |
345 | ||
346 | static void | |
4cd1905a | 347 | exfunstuff (void) |
8a0efa53 CF |
348 | { |
349 | unsigned int openp; | |
350 | unsigned int fname; | |
351 | unsigned int idx; | |
352 | string_type out; | |
353 | init_string(&out); | |
354 | ||
355 | ||
356 | /* make sure that it's not already exfuned */ | |
357 | if(find(tos,"EXFUN") || find(tos,"PROTO") || !find(tos,"(")) { | |
358 | catstr(&out,tos); | |
359 | } | |
360 | else | |
361 | { | |
362 | ||
363 | /*Find the open paren*/ | |
364 | for (openp = 0; at(tos, openp) != '(' && at(tos,openp); openp++) | |
365 | ; | |
366 | ||
367 | fname = openp; | |
368 | /* Step back to the fname */ | |
369 | fname--; | |
370 | while (fname && isspace(at(tos, fname))) | |
371 | fname --; | |
372 | while (fname && !isspace(at(tos,fname)) && at(tos,fname) != '*') | |
373 | fname--; | |
374 | ||
375 | fname++; | |
376 | ||
377 | for (idx = 0; idx < fname; idx++) | |
378 | { | |
379 | catchar(&out, at(tos,idx)); | |
380 | } | |
381 | ||
382 | cattext(&out,"EXFUN("); | |
383 | for (idx = fname; idx < openp; idx++) | |
384 | { | |
385 | catchar(&out, at(tos,idx)); | |
386 | } | |
387 | cattext(&out,", "); | |
388 | while (at(tos,idx) && at(tos,idx) !=';') | |
389 | { | |
390 | catchar(&out, at(tos, idx)); | |
391 | idx++; | |
392 | } | |
393 | cattext(&out,");\n"); | |
394 | } | |
395 | overwrite_string(tos, &out); | |
396 | pc++; | |
397 | ||
398 | } | |
399 | ||
400 | ||
401 | ||
402 | /* turn {* | |
403 | and *} into comments */ | |
404 | ||
405 | WORD(translatecomments) | |
406 | { | |
407 | unsigned int idx = 0; | |
408 | string_type out; | |
409 | init_string(&out); | |
410 | ||
411 | while (at(tos, idx)) | |
412 | { | |
413 | if (at(tos,idx) == '{' && at(tos,idx+1) =='*') | |
414 | { | |
415 | cattext(&out," /*"); | |
416 | idx+=2; | |
417 | } | |
418 | else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') | |
419 | { | |
420 | cattext(&out,"*/"); | |
421 | idx+=2; | |
422 | } | |
423 | else | |
424 | { | |
425 | catchar(&out, at(tos, idx)); | |
426 | idx++; | |
427 | } | |
428 | } | |
429 | ||
430 | ||
431 | overwrite_string(tos, &out); | |
432 | ||
433 | pc++; | |
434 | ||
435 | } | |
436 | ||
3ed024dc | 437 | #if 0 |
8a0efa53 CF |
438 | /* turn everything not starting with a . into a comment */ |
439 | ||
440 | WORD(manglecomments) | |
441 | { | |
442 | unsigned int idx = 0; | |
443 | string_type out; | |
444 | init_string(&out); | |
445 | ||
446 | while (at(tos, idx)) | |
447 | { | |
448 | if (at(tos,idx) == '\n' && at(tos,idx+1) =='*') | |
449 | { | |
450 | cattext(&out," /*"); | |
451 | idx+=2; | |
452 | } | |
453 | else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') | |
454 | { | |
455 | cattext(&out,"*/"); | |
456 | idx+=2; | |
457 | } | |
458 | else | |
459 | { | |
460 | catchar(&out, at(tos, idx)); | |
461 | idx++; | |
462 | } | |
463 | } | |
464 | ||
465 | ||
466 | overwrite_string(tos, &out); | |
467 | ||
468 | pc++; | |
469 | ||
470 | } | |
3ed024dc | 471 | #endif |
8a0efa53 CF |
472 | |
473 | /* Mod tos so that only lines with leading dots remain */ | |
474 | static void | |
4cd1905a | 475 | outputdots (void) |
8a0efa53 CF |
476 | { |
477 | unsigned int idx = 0; | |
478 | string_type out; | |
479 | init_string(&out); | |
480 | ||
481 | while (at(tos, idx)) | |
482 | { | |
483 | if (at(tos, idx) == '\n' && at(tos, idx+1) == '.') | |
484 | { | |
485 | idx += 2; | |
486 | ||
487 | while (at(tos, idx) && at(tos, idx)!='\n') | |
488 | { | |
489 | if (at(tos,idx) == '{' && at(tos,idx+1) =='*') | |
490 | { | |
491 | cattext(&out," /*"); | |
492 | idx+=2; | |
493 | } | |
494 | else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') | |
495 | { | |
496 | cattext(&out,"*/"); | |
497 | idx+=2; | |
498 | } | |
499 | else | |
500 | { | |
501 | catchar(&out, at(tos, idx)); | |
502 | idx++; | |
503 | } | |
504 | } | |
505 | catchar(&out,'\n'); | |
506 | } | |
507 | else | |
508 | { | |
509 | idx++; | |
510 | } | |
511 | } | |
512 | ||
513 | overwrite_string(tos, &out); | |
514 | pc++; | |
515 | ||
516 | } | |
517 | ||
518 | /* Find lines starting with . and | and put example around them on tos | |
519 | turn | |
520 | {* into open comment and *} into close comment | |
521 | escape curlies | |
522 | ||
523 | */ | |
524 | WORD(courierize) | |
525 | { | |
526 | string_type out; | |
527 | unsigned int idx = 0; | |
528 | ||
529 | init_string(&out); | |
530 | ||
531 | while (at(tos, idx)) | |
532 | { | |
533 | if (at(tos, idx) == '\n' | |
534 | && (at(tos, idx +1 ) == '.' | |
535 | || at(tos,idx+1) == '|')) | |
536 | { | |
537 | cattext(&out,"\n@smallexample\n"); | |
538 | do | |
539 | { | |
540 | idx += 2; | |
541 | ||
542 | while (at(tos, idx) && at(tos, idx)!='\n') | |
543 | { | |
544 | if (at(tos,idx)=='{' && at(tos,idx+1) =='*') | |
545 | { | |
546 | cattext(&out," /*"); | |
547 | idx+=2; | |
548 | } | |
549 | else if (at(tos,idx)=='*' && at(tos,idx+1) =='}') | |
550 | { | |
551 | cattext(&out,"*/"); | |
552 | idx+=2; | |
553 | } | |
554 | else if (at(tos,idx) == '{') | |
555 | { | |
556 | cattext(&out,"@{"); | |
557 | idx++; | |
558 | } | |
559 | else if (at(tos,idx) == '}') | |
560 | { | |
561 | cattext(&out,"@}"); | |
562 | idx++; | |
563 | } | |
564 | else | |
565 | { | |
566 | catchar(&out, at(tos, idx)); | |
567 | idx++; | |
568 | } | |
569 | ||
570 | } | |
571 | catchar(&out,'\n'); | |
572 | } | |
573 | while (at(tos, idx) == '\n' | |
574 | && (at(tos, idx+1) == '.') | |
575 | || (at(tos,idx+1) == '|')); | |
576 | cattext(&out,"@end smallexample"); | |
577 | } | |
578 | else | |
579 | { | |
580 | catchar(&out, at(tos, idx)); | |
581 | idx++; | |
582 | } | |
583 | } | |
584 | ||
585 | overwrite_string(tos, &out); | |
586 | pc++; | |
587 | ||
588 | ||
589 | } | |
590 | ||
591 | /* | |
3ed024dc JJ |
592 | bulletize: look for bullet item commands at start of line |
593 | Bullet list: | |
8a0efa53 | 594 | O+ emit @itemize @bullet |
3ed024dc | 595 | o emit @item [note lowercase] |
8a0efa53 CF |
596 | O- emit @end itemize |
597 | ||
3ed024dc | 598 | Variable label list: |
8a0efa53 | 599 | o+ emit @table @code |
3ed024dc | 600 | o emit @item |
8a0efa53 CF |
601 | o- emit @end table |
602 | */ | |
603 | ||
604 | ||
605 | WORD(bulletize) | |
606 | { | |
607 | unsigned int idx = 0; | |
8a0efa53 CF |
608 | string_type out; |
609 | init_string(&out); | |
610 | ||
611 | while (at(tos, idx)) { | |
8a0efa53 CF |
612 | if (at(tos, idx) == '\n' && at(tos, idx+1) == 'o') |
613 | { | |
614 | if (at(tos,idx+2) == '+') { | |
615 | cattext(&out,"\n@table @code\n"); | |
616 | idx+=3; | |
617 | } | |
618 | else if (at(tos,idx+2) == '-') { | |
619 | cattext(&out,"\n@end table\n"); | |
620 | idx+=3; | |
621 | } | |
622 | else if (isspace(at(tos,idx+2))) { | |
623 | cattext(&out,"\n@item "); | |
624 | idx+=3; | |
625 | } | |
626 | else { | |
627 | catchar(&out, at(tos, idx)); | |
628 | idx++; | |
629 | } | |
630 | } | |
631 | ||
632 | else | |
633 | if (at(tos, idx) == '\n' && at(tos, idx+1) == 'O') | |
634 | { | |
635 | if (at(tos,idx+2) == '+') { | |
636 | cattext(&out,"\n@itemize @bullet\n"); | |
637 | idx+=3; | |
638 | } | |
639 | ||
640 | else if (at(tos,idx+2) == '-') { | |
641 | cattext(&out,"\n@end itemize\n"); | |
642 | idx+=3; | |
643 | } | |
644 | else { | |
645 | catchar(&out, at(tos, idx)); | |
646 | idx++; | |
647 | } | |
648 | } | |
649 | else | |
650 | { | |
651 | catchar(&out, at(tos, idx)); | |
652 | idx++; | |
653 | } | |
654 | } | |
655 | ||
656 | delete_string(tos); | |
657 | *tos = out; | |
658 | pc++; | |
659 | ||
660 | } | |
661 | ||
662 | /* Turn <<foo>> into @code{foo} in place at TOS | |
663 | Turn <[foo]> into @var{foo} in place at TOS | |
664 | nest them too ! | |
665 | ||
666 | */ | |
667 | ||
668 | ||
669 | WORD(do_fancy_stuff) | |
670 | { | |
671 | unsigned int idx = 0; | |
672 | string_type out; | |
673 | init_string(&out); | |
674 | while (at(tos, idx)) | |
675 | { | |
676 | if (at(tos, idx) == '<' | |
677 | && at(tos, idx+1) == '<' | |
678 | && (!isspace(at(tos,idx + 2)) || at(tos,idx+3) == '>')) | |
679 | { | |
680 | /* This qualifies as a << startup */ | |
681 | idx +=2; | |
682 | cattext(&out,"@code{"); | |
683 | } | |
684 | ||
685 | else if (at(tos, idx) == '<' | |
686 | && at(tos, idx+1) == '[' | |
687 | && !isspace(at(tos,idx + 2))) | |
688 | { | |
689 | /* This qualifies as a <[ startup */ | |
690 | idx +=2; | |
691 | cattext(&out,"@var{"); | |
692 | } | |
693 | else if (at(tos, idx) == '>' | |
694 | && at(tos,idx+1) =='>') | |
695 | { | |
696 | ||
697 | cattext(&out,"}"); | |
698 | idx+=2; | |
699 | } | |
700 | else if (at(tos, idx) == ']' | |
701 | && at(tos,idx+1) =='>') | |
702 | { | |
703 | cattext(&out,"}"); | |
704 | idx+=2; | |
705 | } | |
706 | else | |
707 | { | |
708 | catchar(&out, at(tos, idx)); | |
709 | idx++; | |
710 | } | |
711 | } | |
712 | delete_string(tos); | |
713 | *tos = out; | |
714 | pc++; | |
715 | ||
716 | } | |
717 | /* A command is all upper case,and alone on a line */ | |
718 | static int | |
4cd1905a | 719 | iscommand (string_type *ptr, unsigned int idx) |
8a0efa53 CF |
720 | { |
721 | unsigned int len = 0; | |
1129ef01 JT |
722 | |
723 | while (isupper(at(ptr,idx)) || at(ptr,idx) == '_') { | |
724 | len++; | |
725 | idx++; | |
726 | } | |
727 | ||
728 | while (at(ptr,idx) == ' ') { | |
8a0efa53 CF |
729 | len++; |
730 | idx++; | |
1129ef01 JT |
731 | } |
732 | ||
733 | if(at(ptr,idx) == '\n') | |
8a0efa53 | 734 | { |
3ed024dc JJ |
735 | /* The length check will never fail on a real command |
736 | * because the commands are screened as the definitions file | |
737 | * is read. */ | |
738 | if (len >= MIN_CMDLEN) return 1; | |
8a0efa53 CF |
739 | return 0; |
740 | } | |
1129ef01 | 741 | |
8a0efa53 CF |
742 | return 0; |
743 | ||
744 | } | |
745 | ||
746 | ||
3ed024dc | 747 | unsigned int |
4cd1905a | 748 | copy_past_newline (string_type *ptr, unsigned int idx, string_type *dst) |
8a0efa53 CF |
749 | { |
750 | while (at(ptr, idx) && at(ptr, idx) != '\n') | |
751 | { | |
752 | catchar(dst, at(ptr, idx)); | |
753 | idx++; | |
754 | ||
755 | } | |
756 | catchar(dst, at(ptr, idx)); | |
757 | idx++; | |
758 | return idx; | |
759 | ||
760 | } | |
761 | ||
762 | WORD(icopy_past_newline) | |
763 | { | |
764 | tos++; | |
765 | init_string(tos); | |
766 | idx = copy_past_newline(ptr, idx, tos); | |
767 | pc++; | |
768 | } | |
769 | ||
770 | ||
771 | /* indent | |
772 | Take the string at the top of the stack, do some prettying */ | |
773 | ||
774 | ||
775 | ||
776 | ||
777 | WORD(kill_bogus_lines) | |
778 | { | |
779 | int sl ; | |
780 | ||
8a0efa53 CF |
781 | int idx = 0; |
782 | int c; | |
783 | int dot = 0 ; | |
784 | ||
785 | string_type out; | |
786 | init_string(&out); | |
787 | /* Drop leading nl */ | |
788 | while (at(tos,idx) == '\n') | |
789 | { | |
790 | idx++; | |
791 | } | |
792 | c = idx; | |
793 | ||
794 | /* Find the last char */ | |
795 | while (at(tos,idx)) | |
796 | { | |
797 | idx++; | |
798 | } | |
799 | ||
800 | /* find the last non white before the nl */ | |
801 | idx--; | |
802 | ||
803 | while (idx && isspace(at(tos,idx))) | |
804 | idx--; | |
805 | idx++; | |
806 | ||
807 | /* Copy buffer upto last char, but blank lines before and after | |
808 | dots don't count */ | |
809 | sl = 1; | |
810 | ||
811 | while (c < idx) | |
812 | { | |
813 | if (at(tos,c) == '\n' | |
814 | && at(tos,c+1) == '\n' | |
815 | && at(tos,c+2) == '.') | |
816 | { | |
817 | /* Ignore two linelines before a dot*/ | |
818 | c++; | |
819 | } | |
820 | else if (at(tos,c) == '.' && sl) | |
821 | { | |
822 | /* remember that this line started with a dot */ | |
823 | dot=2; | |
824 | } | |
825 | else if (at(tos,c) == '\n' | |
826 | && at(tos,c+1) == '\n' | |
827 | && dot) | |
828 | { | |
829 | c++; | |
830 | /* Ignore two newlines when last line was dot */ | |
831 | } | |
832 | ||
833 | catchar(&out, at(tos,c)); | |
834 | if (at(tos,c) == '\n') | |
835 | { | |
836 | sl = 1; | |
837 | ||
838 | if (dot == 2)dot=1;else dot = 0; | |
839 | } | |
840 | ||
841 | c++; | |
842 | ||
843 | } | |
844 | ||
845 | /* Append nl*/ | |
846 | catchar(&out, '\n'); | |
847 | pc++; | |
848 | delete_string(tos); | |
849 | *tos = out; | |
850 | ||
851 | ||
852 | } | |
853 | ||
854 | WORD(indent) | |
855 | { | |
856 | string_type out; | |
857 | int tab = 0; | |
858 | int idx = 0; | |
859 | int ol =0; | |
860 | init_string(&out); | |
861 | while (at(tos,idx)) { | |
862 | switch (at(tos,idx)) | |
863 | { | |
864 | case '\n': | |
865 | cattext(&out,"\n"); | |
866 | idx++; | |
867 | if (tab) | |
868 | { | |
869 | cattext(&out," "); | |
870 | } | |
871 | ol = 0; | |
872 | break; | |
873 | case '(': | |
874 | tab++; | |
875 | if (ol == 0) | |
876 | cattext(&out," "); | |
877 | idx++; | |
878 | cattext(&out,"("); | |
879 | ol = 1; | |
880 | break; | |
881 | case ')': | |
882 | tab--; | |
883 | cattext(&out,")"); | |
884 | idx++; | |
885 | ol=1; | |
886 | ||
887 | break; | |
888 | default: | |
889 | catchar(&out,at(tos,idx)); | |
890 | ol=1; | |
891 | ||
892 | idx++; | |
893 | break; | |
894 | } | |
895 | } | |
896 | ||
897 | pc++; | |
898 | delete_string(tos); | |
899 | *tos = out; | |
900 | ||
901 | } | |
902 | ||
903 | /* Change the TOS so that all that is left is the stuff inside the | |
904 | first <<foo>> . | |
905 | */ | |
906 | ||
907 | WORD(get_stuff_in_angle) | |
908 | { | |
909 | unsigned int idx = 0; | |
910 | string_type out; | |
911 | init_string(&out); | |
912 | ||
913 | while (at(tos, idx)) | |
914 | { | |
915 | if (at(tos,idx) == '<' && at(tos,idx+1) =='<') | |
916 | { | |
917 | idx+=2; | |
918 | ||
919 | while (!(at(tos,idx) == '>' && at(tos,idx+1) == '>')) | |
920 | { | |
921 | catchar(&out, at(tos, idx)); | |
922 | idx++; | |
923 | } | |
924 | break; | |
925 | } | |
926 | idx++; | |
927 | } | |
928 | catchar(&out,'\n'); | |
929 | ||
930 | overwrite_string(tos, &out); | |
931 | pc++; | |
932 | } | |
933 | ||
934 | ||
935 | WORD(get_stuff_in_command) | |
936 | { | |
937 | tos++; | |
938 | init_string(tos); | |
939 | ||
940 | while (at(ptr, idx)) { | |
941 | if (iscommand(ptr, idx)) break; | |
942 | idx = copy_past_newline(ptr, idx, tos); | |
943 | } | |
944 | pc++; | |
945 | } | |
946 | ||
947 | WORD(swap) | |
948 | { | |
949 | string_type t; | |
950 | ||
951 | t = tos[0]; | |
952 | tos[0] = tos[-1]; | |
953 | tos[-1] =t; | |
954 | pc++; | |
955 | ||
956 | } | |
957 | ||
e041a958 | 958 | WORD(dup_) |
8a0efa53 CF |
959 | { |
960 | tos++; | |
961 | init_string(tos); | |
962 | catstr(tos, tos-1); | |
963 | pc++; | |
964 | ||
965 | } | |
966 | ||
967 | ||
968 | ||
969 | WORD(icatstr) | |
970 | { | |
971 | catstr(tos-1, tos); | |
972 | delete_string(tos); | |
973 | tos--; | |
974 | pc++; | |
975 | ||
976 | } | |
977 | ||
978 | WORD(skip_past_newline) | |
979 | { | |
980 | while (at(ptr,idx) | |
981 | && at(ptr,idx) != '\n') | |
982 | idx++; | |
983 | idx++; | |
984 | pc++; | |
985 | } | |
986 | ||
987 | ||
988 | WORD(internalmode) | |
989 | { | |
990 | internal_mode = *(isp); | |
991 | isp--; | |
992 | pc++; | |
993 | } | |
994 | ||
995 | WORD(maybecatstr) | |
996 | { | |
997 | if (internal_wanted == internal_mode) | |
998 | { | |
999 | catstr(tos-1, tos); | |
1000 | } | |
1001 | delete_string(tos); | |
1002 | tos--; | |
1003 | pc++; | |
1004 | ||
1005 | } | |
1006 | ||
2ce4e1e5 JT |
1007 | /* write tos to stderr */ |
1008 | WORD(warn) | |
1009 | { | |
1010 | fputs("Warning: ", stderr); | |
1011 | fwrite(tos->ptr, tos->write_idx, 1, stderr); | |
1012 | fputc('\n', stderr); | |
1013 | delete_string(tos); | |
1014 | tos--; | |
1015 | pc++; | |
1016 | } | |
1017 | ||
8a0efa53 | 1018 | char * |
4cd1905a | 1019 | nextword (char *string, char **word) |
8a0efa53 CF |
1020 | { |
1021 | char *word_start; | |
1022 | int idx; | |
1023 | char *dst; | |
1024 | char *src; | |
1025 | ||
1026 | int length = 0; | |
1027 | ||
1028 | while (isspace(*string) || *string == '-') { | |
1029 | if (*string == '-') | |
1030 | { | |
1031 | while (*string && *string != '\n') | |
1032 | string++; | |
1033 | ||
1034 | } | |
1035 | else { | |
1036 | string++; | |
1037 | } | |
1038 | } | |
1039 | if (!*string) return 0; | |
1040 | ||
1041 | word_start = string; | |
1042 | if (*string == '"') | |
1043 | { | |
1044 | string++; | |
1045 | length++; | |
1046 | ||
1047 | while (*string != '"') | |
1048 | { | |
1049 | string++; | |
1050 | length++; | |
1051 | } | |
1052 | } | |
1053 | else | |
1054 | { | |
1055 | ||
1056 | ||
1057 | while (!isspace(*string)) | |
1058 | { | |
1059 | string++; | |
1060 | length++; | |
1061 | } | |
1062 | } | |
1063 | ||
1064 | *word = malloc(length + 1); | |
1065 | ||
1066 | dst = *word; | |
1067 | src = word_start; | |
1068 | ||
1069 | ||
1070 | for (idx= 0; idx < length; idx++) | |
1071 | { | |
1072 | ||
1073 | if (src[idx] == '\\' && src[idx+1] == 'n') | |
1074 | { | |
1075 | *dst++ = '\n'; | |
1076 | idx++; | |
1077 | ||
1078 | } | |
1079 | else *dst++ = src[idx]; | |
1080 | } | |
1081 | *dst++ = 0; | |
1082 | ||
1083 | ||
1084 | ||
1085 | ||
1086 | ||
1087 | if(*string) | |
1088 | return string + 1; | |
1089 | else | |
1090 | return 0; | |
1091 | ||
1092 | } | |
1093 | dict_type *root; | |
1094 | dict_type * | |
4cd1905a | 1095 | lookup_word (char *word) |
8a0efa53 CF |
1096 | { |
1097 | dict_type *ptr = root; | |
1098 | while (ptr) { | |
1099 | if (strcmp(ptr->word, word) == 0) return ptr; | |
1100 | ptr = ptr->next; | |
1101 | ||
1102 | } | |
1103 | fprintf(stderr,"Can't find %s\n",word); | |
1104 | return 0; | |
1105 | ||
1106 | ||
1107 | } | |
1108 | ||
4cd1905a YS |
1109 | static int |
1110 | perform (void) | |
8a0efa53 CF |
1111 | { |
1112 | tos = stack; | |
06bd0ecc | 1113 | int errors = 0; |
8a0efa53 CF |
1114 | |
1115 | while (at(ptr, idx)) { | |
1116 | /* It's worth looking through the command list */ | |
1117 | if (iscommand(ptr, idx)) | |
1118 | { | |
8a0efa53 CF |
1119 | char *next; |
1120 | dict_type *word ; | |
1121 | ||
1122 | (void) nextword(addr(ptr, idx), &next); | |
1123 | ||
1124 | ||
1125 | word = lookup_word(next); | |
1126 | ||
1127 | ||
1128 | ||
1129 | ||
1130 | if (word) | |
1131 | { | |
3ed024dc | 1132 | if(Verbose) fprintf(stderr, "CMD '%s'\n", word->word); |
8a0efa53 CF |
1133 | exec(word); |
1134 | } | |
1135 | else | |
1136 | { | |
1137 | fprintf(stderr,"warning, %s is not recognised\n", next); | |
06bd0ecc | 1138 | errors++; |
8a0efa53 CF |
1139 | skip_past_newline(); |
1140 | } | |
1141 | ||
1142 | } | |
1143 | else skip_past_newline(); | |
1144 | ||
1145 | } | |
06bd0ecc | 1146 | return errors; |
8a0efa53 CF |
1147 | } |
1148 | ||
1149 | dict_type * | |
4cd1905a | 1150 | newentry (char *word) |
8a0efa53 CF |
1151 | { |
1152 | dict_type *new = (dict_type *)malloc(sizeof(dict_type)); | |
1153 | new->word = word; | |
1154 | new->next = root; | |
1155 | root = new; | |
1156 | new->code = (stinst_type *)malloc(sizeof(stinst_type )); | |
1157 | new->code_length = 1; | |
1158 | new->code_end = 0; | |
1159 | return new; | |
1160 | ||
1161 | } | |
1162 | ||
1163 | ||
1164 | unsigned int | |
4cd1905a | 1165 | add_to_definition (dict_type *entry, stinst_type word) |
8a0efa53 CF |
1166 | { |
1167 | if (entry->code_end == entry->code_length) | |
1168 | { | |
1169 | entry->code_length += 2; | |
1170 | entry->code = | |
1171 | (stinst_type *) realloc((char *)(entry->code), | |
1172 | entry->code_length *sizeof(word_type)); | |
1173 | } | |
1174 | entry->code[entry->code_end] = word; | |
1175 | ||
1176 | return entry->code_end++; | |
1177 | } | |
1178 | ||
1179 | ||
1180 | ||
1181 | ||
1182 | ||
1183 | ||
1184 | ||
1185 | void | |
4cd1905a | 1186 | add_intrinsic (char *name, void (*func)(void)) |
8a0efa53 CF |
1187 | { |
1188 | dict_type *new = newentry(name); | |
1189 | add_to_definition(new, func); | |
1190 | add_to_definition(new, 0); | |
1191 | } | |
1192 | ||
8a0efa53 | 1193 | void |
4cd1905a | 1194 | add_var (char *name) |
8a0efa53 CF |
1195 | { |
1196 | dict_type *new = newentry(name); | |
1197 | add_to_definition(new, push_number); | |
1198 | add_to_definition(new, (stinst_type)(&(new->var))); | |
1199 | add_to_definition(new,0); | |
1200 | ||
1201 | } | |
1202 | ||
1203 | ||
1204 | ||
1205 | ||
3ed024dc | 1206 | int |
4cd1905a | 1207 | compile (char *string) |
8a0efa53 | 1208 | { |
3ed024dc | 1209 | int ret=0; |
8a0efa53 CF |
1210 | /* add words to the dictionary */ |
1211 | char *word; | |
06bd0ecc JT |
1212 | dict_type *lookup; |
1213 | ||
8a0efa53 CF |
1214 | string = nextword(string, &word); |
1215 | while (string && *string && word[0]) | |
1216 | { | |
1217 | if (strcmp(word,"var")==0) | |
1218 | { | |
3ed024dc | 1219 | string=nextword(string, &word); |
8a0efa53 CF |
1220 | |
1221 | add_var(word); | |
3ed024dc | 1222 | string=nextword(string, &word); |
8a0efa53 | 1223 | } |
3ed024dc | 1224 | else |
8a0efa53 CF |
1225 | |
1226 | if (word[0] == ':') | |
1227 | { | |
1228 | dict_type *ptr; | |
1229 | /* Compile a word and add to dictionary */ | |
1230 | string = nextword(string, &word); | |
3ed024dc JJ |
1231 | if(Verbose) fprintf(stderr, "Found command '%s'\n", word); |
1232 | if(strlen(word) < MIN_CMDLEN) { | |
1233 | fprintf(stderr, "ERROR: Command '%s' is too short ", word); | |
1234 | fprintf(stderr, "(MIN_CMDLEN is %d)\n", MIN_CMDLEN); | |
1235 | ret++; | |
1236 | } | |
8a0efa53 CF |
1237 | |
1238 | ptr = newentry(word); | |
1239 | string = nextword(string, &word); | |
1240 | while (word[0] != ';' ) | |
1241 | { | |
1242 | switch (word[0]) | |
1243 | { | |
1244 | ||
1245 | ||
1246 | case '"': | |
1247 | /* got a string, embed magic push string | |
1248 | function */ | |
1249 | add_to_definition(ptr, push_text); | |
1250 | add_to_definition(ptr, (stinst_type)(word+1)); | |
1251 | break; | |
1252 | case '0': | |
1253 | case '1': | |
1254 | case '2': | |
1255 | case '3': | |
1256 | case '4': | |
1257 | case '5': | |
1258 | case '6': | |
1259 | case '7': | |
1260 | case '8': | |
1261 | case '9': | |
1262 | /* Got a number, embedd the magic push number | |
1263 | function */ | |
1264 | add_to_definition(ptr, push_number); | |
7bfa24c4 | 1265 | add_to_definition(ptr, (stinst_type)atol(word)); |
8a0efa53 CF |
1266 | break; |
1267 | default: | |
1268 | add_to_definition(ptr, call); | |
06bd0ecc JT |
1269 | lookup = lookup_word(word); |
1270 | if (!lookup) ret++; | |
7bfa24c4 | 1271 | add_to_definition(ptr, (stinst_type)lookup); |
8a0efa53 CF |
1272 | } |
1273 | ||
1274 | string = nextword(string, &word); | |
1275 | } | |
1276 | add_to_definition(ptr,0); | |
1277 | string = nextword(string, &word); | |
1278 | } | |
1279 | else | |
1280 | { | |
1281 | fprintf(stderr,"syntax error at %s\n",string-1); | |
3ed024dc | 1282 | ret++; |
8a0efa53 CF |
1283 | } |
1284 | } | |
1285 | ||
609f5a51 JS |
1286 | free(word); |
1287 | return(ret); | |
8a0efa53 CF |
1288 | } |
1289 | ||
1290 | ||
4cd1905a YS |
1291 | static void |
1292 | bang (void) | |
8a0efa53 | 1293 | { |
4fab65dc | 1294 | *(uintptr_t *)((isp[0])) = isp[-1]; |
8a0efa53 CF |
1295 | isp-=2; |
1296 | pc++; | |
1297 | ||
1298 | } | |
1299 | ||
1300 | WORD(atsign) | |
1301 | { | |
4fab65dc | 1302 | isp[0] = *(uintptr_t *)(isp[0]); |
8a0efa53 CF |
1303 | pc++; |
1304 | } | |
1305 | ||
1306 | WORD(hello) | |
1307 | { | |
1308 | ||
1309 | printf("hello\n"); | |
1310 | pc++; | |
1311 | } | |
1312 | ||
1313 | ||
1314 | ||
4cd1905a YS |
1315 | static void |
1316 | read_in (string_type *str, FILE *file) | |
8a0efa53 CF |
1317 | { |
1318 | char buff[10000]; | |
1319 | unsigned int r; | |
1320 | do | |
1321 | { | |
1322 | r = fread(buff, 1, sizeof(buff), file); | |
1323 | catbuf(str, buff, r); | |
1324 | } | |
1325 | while (r); | |
1326 | buff[0] = 0; | |
1327 | ||
1328 | catbuf(str, buff,1); | |
1329 | ||
1330 | } | |
1331 | ||
1332 | ||
3ed024dc | 1333 | #if 0 |
4cd1905a YS |
1334 | static void |
1335 | usage (void) | |
8a0efa53 | 1336 | { |
3ed024dc | 1337 | fprintf(stderr,"usage: -[i|v] -f macrofile <file >file\n"); |
8a0efa53 CF |
1338 | exit(33); |
1339 | } | |
3ed024dc | 1340 | #endif |
8a0efa53 | 1341 | |
4cd1905a YS |
1342 | int |
1343 | main (int ac, char *av[]) | |
8a0efa53 CF |
1344 | { |
1345 | unsigned int i; | |
06bd0ecc | 1346 | int status = 0; |
8a0efa53 CF |
1347 | |
1348 | string_type buffer; | |
1349 | string_type pptr; | |
1350 | ||
1351 | ||
1352 | init_string(&buffer); | |
1353 | init_string(&pptr); | |
1354 | init_string(stack+0); | |
1355 | tos=stack+1; | |
1356 | ptr = &pptr; | |
1357 | ||
1358 | add_intrinsic("push_text", push_text); | |
1359 | add_intrinsic("!", bang); | |
1360 | add_intrinsic("@", atsign); | |
1361 | add_intrinsic("hello",hello); | |
1362 | add_intrinsic("skip_past_newline", skip_past_newline ); | |
1363 | add_intrinsic("catstr", icatstr ); | |
1364 | add_intrinsic("copy_past_newline", icopy_past_newline ); | |
e041a958 | 1365 | add_intrinsic("dup", dup_ ); |
8a0efa53 CF |
1366 | add_intrinsic("remchar", remchar ); |
1367 | add_intrinsic("get_stuff_in_command", get_stuff_in_command ); | |
1368 | add_intrinsic("get_stuff_in_angle", get_stuff_in_angle ); | |
1369 | add_intrinsic("do_fancy_stuff", do_fancy_stuff ); | |
1370 | add_intrinsic("bulletize", bulletize ); | |
1371 | add_intrinsic("courierize", courierize ); | |
1372 | add_intrinsic("swap", swap ); | |
1373 | add_intrinsic("outputdots", outputdots ); | |
1374 | add_intrinsic("exfunstuff", exfunstuff ); | |
1375 | add_intrinsic("maybecatstr", maybecatstr ); | |
1376 | add_intrinsic("translatecomments", translatecomments ); | |
1377 | add_intrinsic("kill_bogus_lines", kill_bogus_lines); | |
1378 | add_intrinsic("indent", indent); | |
8a0efa53 | 1379 | add_intrinsic("internalmode", internalmode); |
2ce4e1e5 JT |
1380 | add_intrinsic("warn", warn); |
1381 | ||
8a0efa53 CF |
1382 | /* Put a nl at the start */ |
1383 | catchar(&buffer,'\n'); | |
1384 | ||
1385 | read_in(&buffer, stdin); | |
1386 | remove_noncomments(&buffer, ptr); | |
1387 | for (i= 1; i < ac; i++) | |
1388 | { | |
1389 | if (av[i][0] == '-') | |
1390 | { | |
1391 | if (av[i][1] == 'f') | |
1392 | { | |
1393 | string_type b; | |
1394 | FILE *f; | |
1395 | init_string(&b); | |
1396 | ||
1397 | f = fopen(av[i+1],"r"); | |
1398 | if (!f) | |
1399 | { | |
1400 | fprintf(stderr,"Can't open the input file %s\n",av[i+1]); | |
1401 | return 33; | |
1402 | } | |
3ed024dc | 1403 | if(Verbose) fprintf(stderr, "Reading -f '%s'\n", av[i+1]); |
8a0efa53 CF |
1404 | |
1405 | ||
1406 | read_in(&b, f); | |
3ed024dc | 1407 | if( compile(b.ptr) ) { fclose(f); exit(1); } |
06bd0ecc | 1408 | status = perform(); |
3ed024dc | 1409 | fclose(f); |
8a0efa53 CF |
1410 | } |
1411 | else if (av[i][1] == 'i') | |
1412 | { | |
1413 | internal_wanted = 1; | |
1414 | } | |
3ed024dc JJ |
1415 | else if (av[i][1] == 'v') |
1416 | { | |
1417 | Verbose++; | |
1418 | } | |
8a0efa53 CF |
1419 | } |
1420 | ||
1421 | } | |
1422 | write_buffer(stack+0); | |
06bd0ecc | 1423 | return status; |
8a0efa53 | 1424 | } |