]>
Commit | Line | Data |
---|---|---|
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 | ||
38 | #include "ansidecl.h" | |
39 | #include <stdio.h> | |
9cd4a2de | 40 | #include <stdlib.h> |
8a0efa53 | 41 | #include <ctype.h> |
3ed024dc | 42 | #include <string.h> |
4fab65dc | 43 | #include <stdint.h> |
8a0efa53 | 44 | |
8a0efa53 CF |
45 | #define DEF_SIZE 5000 |
46 | #define STACK 50 | |
3ed024dc | 47 | #define MIN_CMDLEN 4 /* Minimum length of a command */ |
8a0efa53 CF |
48 | |
49 | int internal_wanted; | |
50 | int internal_mode; | |
3ed024dc | 51 | int Verbose=0; |
8a0efa53 CF |
52 | |
53 | ||
54 | ||
55 | /* Here is a string type ... */ | |
56 | ||
57 | typedef struct buffer | |
58 | { | |
59 | char *ptr; | |
60 | unsigned int write_idx; | |
61 | unsigned int size; | |
62 | } string_type; | |
63 | ||
64 | ||
65 | ||
66 | ||
67 | ||
68 | ||
69 | ||
70 | static void DEFUN(init_string_with_size,(buffer, size), | |
71 | string_type *buffer AND | |
72 | unsigned int size ) | |
73 | { | |
74 | buffer->write_idx = 0; | |
75 | buffer->size = size; | |
76 | buffer->ptr = malloc(size); | |
77 | } | |
78 | ||
79 | static void DEFUN(init_string,(buffer), | |
80 | string_type *buffer) | |
81 | { | |
82 | init_string_with_size(buffer, DEF_SIZE); | |
83 | ||
84 | } | |
85 | ||
86 | static int DEFUN(find, (str, what), | |
87 | string_type *str AND | |
88 | char *what) | |
89 | { | |
90 | unsigned int i; | |
91 | char *p; | |
92 | p = what; | |
93 | for (i = 0; i < str->write_idx && *p; i++) | |
94 | { | |
95 | if (*p == str->ptr[i]) | |
96 | p++; | |
97 | else | |
98 | p = what; | |
99 | } | |
100 | return (*p == 0); | |
101 | ||
102 | } | |
103 | ||
104 | static void DEFUN(write_buffer,(buffer), | |
105 | string_type *buffer) | |
106 | { | |
107 | fwrite(buffer->ptr, buffer->write_idx, 1, stdout); | |
108 | } | |
109 | ||
110 | ||
111 | static void DEFUN(delete_string,(buffer), | |
112 | string_type *buffer) | |
113 | { | |
114 | free(buffer->ptr); | |
115 | } | |
116 | ||
117 | ||
118 | static char *DEFUN(addr, (buffer, idx), | |
119 | string_type *buffer AND | |
120 | unsigned int idx) | |
121 | { | |
122 | return buffer->ptr + idx; | |
123 | } | |
124 | ||
125 | static char DEFUN(at,(buffer, pos), | |
126 | string_type *buffer AND | |
127 | unsigned int pos) | |
128 | { | |
129 | if ( pos >= buffer->write_idx) | |
130 | { | |
131 | return 0; | |
132 | } | |
133 | return buffer->ptr[pos]; | |
134 | } | |
135 | ||
136 | static void DEFUN(catchar,(buffer, ch), | |
137 | string_type *buffer AND | |
138 | char ch) | |
139 | { | |
140 | if (buffer->write_idx == buffer->size) | |
141 | { | |
142 | buffer->size *=2; | |
143 | buffer->ptr = realloc(buffer->ptr, buffer->size); | |
144 | } | |
145 | ||
146 | buffer->ptr[buffer->write_idx ++ ] = ch; | |
147 | } | |
148 | ||
149 | ||
150 | static void DEFUN(overwrite_string,(dst, src), | |
151 | string_type *dst AND | |
152 | string_type *src) | |
153 | { | |
154 | free(dst->ptr); | |
155 | dst->size = src->size; | |
156 | dst->write_idx = src->write_idx; | |
157 | dst->ptr = src->ptr; | |
158 | } | |
159 | ||
160 | static void DEFUN(catstr,(dst, src), | |
161 | string_type *dst AND | |
162 | string_type *src) | |
163 | { | |
164 | unsigned int i; | |
165 | for (i = 0; i < src->write_idx; i++) | |
166 | { | |
167 | catchar(dst, src->ptr[i]); | |
168 | } | |
169 | } | |
170 | ||
171 | ||
172 | static void DEFUN(cattext,(buffer, string), | |
173 | string_type *buffer AND | |
174 | char *string) | |
175 | { | |
176 | ||
177 | while (*string) | |
178 | { | |
179 | catchar(buffer, *string); | |
180 | string++; | |
181 | } | |
182 | } | |
183 | ||
184 | static void DEFUN(catbuf,(buffer, buf, len), | |
185 | string_type *buffer AND | |
186 | char *buf AND | |
187 | unsigned int len) | |
188 | { | |
189 | ||
190 | while (len--) | |
191 | { | |
192 | catchar(buffer, *buf); | |
193 | buf++; | |
194 | } | |
195 | } | |
196 | ||
197 | ||
198 | ||
199 | static unsigned int | |
200 | DEFUN(skip_white_and_stars,(src, idx), | |
201 | string_type *src AND | |
202 | unsigned int idx) | |
203 | { | |
204 | while (isspace(at(src,idx)) | |
205 | || (at(src,idx) == '*' && at(src,idx +1) !='/')) | |
206 | idx++; | |
207 | return idx; | |
208 | ||
209 | ||
210 | } | |
211 | /***********************************************************************/ | |
212 | ||
213 | ||
214 | string_type stack[STACK]; | |
215 | string_type *tos; | |
216 | ||
217 | unsigned int idx = 0; /* Pos in input buffer */ | |
218 | string_type *ptr; /* and the buffer */ | |
3ed024dc | 219 | typedef void (*stinst_type)(NOARGS); |
8a0efa53 CF |
220 | stinst_type *pc; |
221 | stinst_type sstack[STACK]; | |
222 | stinst_type *ssp = &sstack[0]; | |
4fab65dc JJ |
223 | uintptr_t istack[STACK]; |
224 | uintptr_t *isp = &istack[0]; | |
8a0efa53 | 225 | |
4fab65dc | 226 | typedef uintptr_t *word_type; |
8a0efa53 CF |
227 | |
228 | ||
229 | ||
230 | struct dict_struct | |
231 | { | |
232 | char *word; | |
233 | struct dict_struct *next; | |
234 | stinst_type *code; | |
235 | int code_length; | |
236 | int code_end; | |
237 | int var; | |
238 | ||
239 | }; | |
240 | typedef struct dict_struct dict_type; | |
3ed024dc | 241 | #define WORD(x) static void x(NOARGS) |
8a0efa53 CF |
242 | |
243 | static void DEFUN(exec,(word), | |
244 | dict_type *word) | |
245 | { | |
246 | pc = word->code; | |
247 | while (*pc) | |
248 | { | |
249 | (*pc)(); | |
250 | } | |
251 | ||
252 | } | |
253 | WORD(call) | |
254 | { | |
255 | stinst_type *oldpc = pc; | |
256 | dict_type *e; | |
257 | e = (dict_type *)(pc [1]); | |
258 | exec(e); | |
259 | pc = oldpc + 2; | |
260 | ||
261 | } | |
262 | ||
263 | WORD(remchar) | |
264 | { | |
265 | tos->write_idx--; | |
266 | pc++; | |
267 | ||
268 | } | |
269 | ||
270 | WORD(push_number) | |
271 | { | |
272 | isp++; | |
273 | pc++; | |
4fab65dc | 274 | *isp = (uintptr_t)(*pc); |
8a0efa53 CF |
275 | pc++; |
276 | ||
277 | } | |
278 | ||
279 | ||
280 | ||
281 | ||
282 | WORD(push_text) | |
283 | { | |
284 | ||
285 | tos++; | |
286 | init_string(tos); | |
287 | pc++; | |
288 | cattext(tos,*((char **)pc)); | |
289 | pc++; | |
290 | ||
291 | } | |
292 | ||
293 | ||
294 | ||
295 | /* This function removes everything not inside comments starting on | |
296 | the first char of the line from the string, also when copying | |
297 | comments, removes blank space and leading *'s | |
298 | Blank lines are turned into one blank line | |
299 | */ | |
300 | ||
301 | static void | |
302 | DEFUN(remove_noncomments,(src,dst), | |
303 | string_type *src AND | |
304 | string_type *dst) | |
305 | { | |
306 | unsigned int idx = 0; | |
307 | ||
308 | while (at(src,idx)) | |
309 | { | |
310 | /* Now see if we have a comment at the start of the line */ | |
311 | if (at(src,idx) == '\n' | |
312 | && at(src,idx+1) == '/' | |
313 | && at(src,idx+2) == '*') | |
314 | { | |
315 | idx+=3; | |
316 | ||
317 | idx = skip_white_and_stars(src,idx); | |
318 | ||
319 | /* Remove leading dot */ | |
320 | if (at(src, idx) == '.') | |
321 | idx++; | |
322 | ||
323 | /* Copy to the end of the line, or till the end of the | |
324 | comment */ | |
325 | while (at(src, idx)) | |
326 | { | |
327 | if (at(src, idx) == '\n') | |
328 | { | |
329 | /* end of line, echo and scrape of leading blanks */ | |
330 | if (at(src,idx +1) == '\n') | |
331 | catchar(dst,'\n'); | |
332 | catchar(dst,'\n'); | |
333 | idx++; | |
334 | idx = skip_white_and_stars(src, idx); | |
335 | } | |
336 | else if (at(src, idx) == '*' && at(src,idx+1) == '/') | |
337 | { | |
338 | idx +=2 ; | |
339 | cattext(dst,"\nENDDD\n"); | |
340 | break; | |
341 | } | |
342 | else | |
343 | { | |
344 | catchar(dst, at(src, idx)); | |
345 | idx++; | |
346 | } | |
347 | } | |
348 | } | |
349 | else idx++; | |
350 | } | |
351 | } | |
352 | /* turn foobar name(stuff); into foobar EXFUN(name,(stuff)); | |
353 | ||
354 | */ | |
355 | ||
356 | static void | |
357 | DEFUN_VOID(exfunstuff) | |
358 | { | |
359 | unsigned int openp; | |
360 | unsigned int fname; | |
361 | unsigned int idx; | |
362 | string_type out; | |
363 | init_string(&out); | |
364 | ||
365 | ||
366 | /* make sure that it's not already exfuned */ | |
367 | if(find(tos,"EXFUN") || find(tos,"PROTO") || !find(tos,"(")) { | |
368 | catstr(&out,tos); | |
369 | } | |
370 | else | |
371 | { | |
372 | ||
373 | /*Find the open paren*/ | |
374 | for (openp = 0; at(tos, openp) != '(' && at(tos,openp); openp++) | |
375 | ; | |
376 | ||
377 | fname = openp; | |
378 | /* Step back to the fname */ | |
379 | fname--; | |
380 | while (fname && isspace(at(tos, fname))) | |
381 | fname --; | |
382 | while (fname && !isspace(at(tos,fname)) && at(tos,fname) != '*') | |
383 | fname--; | |
384 | ||
385 | fname++; | |
386 | ||
387 | for (idx = 0; idx < fname; idx++) | |
388 | { | |
389 | catchar(&out, at(tos,idx)); | |
390 | } | |
391 | ||
392 | cattext(&out,"EXFUN("); | |
393 | for (idx = fname; idx < openp; idx++) | |
394 | { | |
395 | catchar(&out, at(tos,idx)); | |
396 | } | |
397 | cattext(&out,", "); | |
398 | while (at(tos,idx) && at(tos,idx) !=';') | |
399 | { | |
400 | catchar(&out, at(tos, idx)); | |
401 | idx++; | |
402 | } | |
403 | cattext(&out,");\n"); | |
404 | } | |
405 | overwrite_string(tos, &out); | |
406 | pc++; | |
407 | ||
408 | } | |
409 | ||
410 | ||
411 | ||
412 | /* turn {* | |
413 | and *} into comments */ | |
414 | ||
415 | WORD(translatecomments) | |
416 | { | |
417 | unsigned int idx = 0; | |
418 | string_type out; | |
419 | init_string(&out); | |
420 | ||
421 | while (at(tos, idx)) | |
422 | { | |
423 | if (at(tos,idx) == '{' && at(tos,idx+1) =='*') | |
424 | { | |
425 | cattext(&out," /*"); | |
426 | idx+=2; | |
427 | } | |
428 | else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') | |
429 | { | |
430 | cattext(&out,"*/"); | |
431 | idx+=2; | |
432 | } | |
433 | else | |
434 | { | |
435 | catchar(&out, at(tos, idx)); | |
436 | idx++; | |
437 | } | |
438 | } | |
439 | ||
440 | ||
441 | overwrite_string(tos, &out); | |
442 | ||
443 | pc++; | |
444 | ||
445 | } | |
446 | ||
3ed024dc | 447 | #if 0 |
8a0efa53 CF |
448 | /* turn everything not starting with a . into a comment */ |
449 | ||
450 | WORD(manglecomments) | |
451 | { | |
452 | unsigned int idx = 0; | |
453 | string_type out; | |
454 | init_string(&out); | |
455 | ||
456 | while (at(tos, idx)) | |
457 | { | |
458 | if (at(tos,idx) == '\n' && at(tos,idx+1) =='*') | |
459 | { | |
460 | cattext(&out," /*"); | |
461 | idx+=2; | |
462 | } | |
463 | else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') | |
464 | { | |
465 | cattext(&out,"*/"); | |
466 | idx+=2; | |
467 | } | |
468 | else | |
469 | { | |
470 | catchar(&out, at(tos, idx)); | |
471 | idx++; | |
472 | } | |
473 | } | |
474 | ||
475 | ||
476 | overwrite_string(tos, &out); | |
477 | ||
478 | pc++; | |
479 | ||
480 | } | |
3ed024dc | 481 | #endif |
8a0efa53 CF |
482 | |
483 | /* Mod tos so that only lines with leading dots remain */ | |
484 | static void | |
485 | DEFUN_VOID(outputdots) | |
486 | { | |
487 | unsigned int idx = 0; | |
488 | string_type out; | |
489 | init_string(&out); | |
490 | ||
491 | while (at(tos, idx)) | |
492 | { | |
493 | if (at(tos, idx) == '\n' && at(tos, idx+1) == '.') | |
494 | { | |
495 | idx += 2; | |
496 | ||
497 | while (at(tos, idx) && at(tos, idx)!='\n') | |
498 | { | |
499 | if (at(tos,idx) == '{' && at(tos,idx+1) =='*') | |
500 | { | |
501 | cattext(&out," /*"); | |
502 | idx+=2; | |
503 | } | |
504 | else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') | |
505 | { | |
506 | cattext(&out,"*/"); | |
507 | idx+=2; | |
508 | } | |
509 | else | |
510 | { | |
511 | catchar(&out, at(tos, idx)); | |
512 | idx++; | |
513 | } | |
514 | } | |
515 | catchar(&out,'\n'); | |
516 | } | |
517 | else | |
518 | { | |
519 | idx++; | |
520 | } | |
521 | } | |
522 | ||
523 | overwrite_string(tos, &out); | |
524 | pc++; | |
525 | ||
526 | } | |
527 | ||
528 | /* Find lines starting with . and | and put example around them on tos | |
529 | turn | |
530 | {* into open comment and *} into close comment | |
531 | escape curlies | |
532 | ||
533 | */ | |
534 | WORD(courierize) | |
535 | { | |
536 | string_type out; | |
537 | unsigned int idx = 0; | |
538 | ||
539 | init_string(&out); | |
540 | ||
541 | while (at(tos, idx)) | |
542 | { | |
543 | if (at(tos, idx) == '\n' | |
544 | && (at(tos, idx +1 ) == '.' | |
545 | || at(tos,idx+1) == '|')) | |
546 | { | |
547 | cattext(&out,"\n@smallexample\n"); | |
548 | do | |
549 | { | |
550 | idx += 2; | |
551 | ||
552 | while (at(tos, idx) && at(tos, idx)!='\n') | |
553 | { | |
554 | if (at(tos,idx)=='{' && at(tos,idx+1) =='*') | |
555 | { | |
556 | cattext(&out," /*"); | |
557 | idx+=2; | |
558 | } | |
559 | else if (at(tos,idx)=='*' && at(tos,idx+1) =='}') | |
560 | { | |
561 | cattext(&out,"*/"); | |
562 | idx+=2; | |
563 | } | |
564 | else if (at(tos,idx) == '{') | |
565 | { | |
566 | cattext(&out,"@{"); | |
567 | idx++; | |
568 | } | |
569 | else if (at(tos,idx) == '}') | |
570 | { | |
571 | cattext(&out,"@}"); | |
572 | idx++; | |
573 | } | |
574 | else | |
575 | { | |
576 | catchar(&out, at(tos, idx)); | |
577 | idx++; | |
578 | } | |
579 | ||
580 | } | |
581 | catchar(&out,'\n'); | |
582 | } | |
583 | while (at(tos, idx) == '\n' | |
584 | && (at(tos, idx+1) == '.') | |
585 | || (at(tos,idx+1) == '|')); | |
586 | cattext(&out,"@end smallexample"); | |
587 | } | |
588 | else | |
589 | { | |
590 | catchar(&out, at(tos, idx)); | |
591 | idx++; | |
592 | } | |
593 | } | |
594 | ||
595 | overwrite_string(tos, &out); | |
596 | pc++; | |
597 | ||
598 | ||
599 | } | |
600 | ||
601 | /* | |
3ed024dc JJ |
602 | bulletize: look for bullet item commands at start of line |
603 | Bullet list: | |
8a0efa53 | 604 | O+ emit @itemize @bullet |
3ed024dc | 605 | o emit @item [note lowercase] |
8a0efa53 CF |
606 | O- emit @end itemize |
607 | ||
3ed024dc | 608 | Variable label list: |
8a0efa53 | 609 | o+ emit @table @code |
3ed024dc | 610 | o emit @item |
8a0efa53 CF |
611 | o- emit @end table |
612 | */ | |
613 | ||
614 | ||
615 | WORD(bulletize) | |
616 | { | |
617 | unsigned int idx = 0; | |
8a0efa53 CF |
618 | string_type out; |
619 | init_string(&out); | |
620 | ||
621 | while (at(tos, idx)) { | |
8a0efa53 CF |
622 | if (at(tos, idx) == '\n' && at(tos, idx+1) == 'o') |
623 | { | |
624 | if (at(tos,idx+2) == '+') { | |
625 | cattext(&out,"\n@table @code\n"); | |
626 | idx+=3; | |
627 | } | |
628 | else if (at(tos,idx+2) == '-') { | |
629 | cattext(&out,"\n@end table\n"); | |
630 | idx+=3; | |
631 | } | |
632 | else if (isspace(at(tos,idx+2))) { | |
633 | cattext(&out,"\n@item "); | |
634 | idx+=3; | |
635 | } | |
636 | else { | |
637 | catchar(&out, at(tos, idx)); | |
638 | idx++; | |
639 | } | |
640 | } | |
641 | ||
642 | else | |
643 | if (at(tos, idx) == '\n' && at(tos, idx+1) == 'O') | |
644 | { | |
645 | if (at(tos,idx+2) == '+') { | |
646 | cattext(&out,"\n@itemize @bullet\n"); | |
647 | idx+=3; | |
648 | } | |
649 | ||
650 | else if (at(tos,idx+2) == '-') { | |
651 | cattext(&out,"\n@end itemize\n"); | |
652 | idx+=3; | |
653 | } | |
654 | else { | |
655 | catchar(&out, at(tos, idx)); | |
656 | idx++; | |
657 | } | |
658 | } | |
659 | else | |
660 | { | |
661 | catchar(&out, at(tos, idx)); | |
662 | idx++; | |
663 | } | |
664 | } | |
665 | ||
666 | delete_string(tos); | |
667 | *tos = out; | |
668 | pc++; | |
669 | ||
670 | } | |
671 | ||
672 | /* Turn <<foo>> into @code{foo} in place at TOS | |
673 | Turn <[foo]> into @var{foo} in place at TOS | |
674 | nest them too ! | |
675 | ||
676 | */ | |
677 | ||
678 | ||
679 | WORD(do_fancy_stuff) | |
680 | { | |
681 | unsigned int idx = 0; | |
682 | string_type out; | |
683 | init_string(&out); | |
684 | while (at(tos, idx)) | |
685 | { | |
686 | if (at(tos, idx) == '<' | |
687 | && at(tos, idx+1) == '<' | |
688 | && (!isspace(at(tos,idx + 2)) || at(tos,idx+3) == '>')) | |
689 | { | |
690 | /* This qualifies as a << startup */ | |
691 | idx +=2; | |
692 | cattext(&out,"@code{"); | |
693 | } | |
694 | ||
695 | else if (at(tos, idx) == '<' | |
696 | && at(tos, idx+1) == '[' | |
697 | && !isspace(at(tos,idx + 2))) | |
698 | { | |
699 | /* This qualifies as a <[ startup */ | |
700 | idx +=2; | |
701 | cattext(&out,"@var{"); | |
702 | } | |
703 | else if (at(tos, idx) == '>' | |
704 | && at(tos,idx+1) =='>') | |
705 | { | |
706 | ||
707 | cattext(&out,"}"); | |
708 | idx+=2; | |
709 | } | |
710 | else if (at(tos, idx) == ']' | |
711 | && at(tos,idx+1) =='>') | |
712 | { | |
713 | cattext(&out,"}"); | |
714 | idx+=2; | |
715 | } | |
716 | else | |
717 | { | |
718 | catchar(&out, at(tos, idx)); | |
719 | idx++; | |
720 | } | |
721 | } | |
722 | delete_string(tos); | |
723 | *tos = out; | |
724 | pc++; | |
725 | ||
726 | } | |
727 | /* A command is all upper case,and alone on a line */ | |
728 | static int | |
729 | DEFUN( iscommand,(ptr, idx), | |
730 | string_type *ptr AND | |
731 | unsigned int idx) | |
732 | { | |
733 | unsigned int len = 0; | |
1129ef01 JT |
734 | |
735 | while (isupper(at(ptr,idx)) || at(ptr,idx) == '_') { | |
736 | len++; | |
737 | idx++; | |
738 | } | |
739 | ||
740 | while (at(ptr,idx) == ' ') { | |
8a0efa53 CF |
741 | len++; |
742 | idx++; | |
1129ef01 JT |
743 | } |
744 | ||
745 | if(at(ptr,idx) == '\n') | |
8a0efa53 | 746 | { |
3ed024dc JJ |
747 | /* The length check will never fail on a real command |
748 | * because the commands are screened as the definitions file | |
749 | * is read. */ | |
750 | if (len >= MIN_CMDLEN) return 1; | |
8a0efa53 CF |
751 | return 0; |
752 | } | |
1129ef01 | 753 | |
8a0efa53 CF |
754 | return 0; |
755 | ||
756 | } | |
757 | ||
758 | ||
3ed024dc | 759 | unsigned int |
8a0efa53 CF |
760 | DEFUN(copy_past_newline,(ptr, idx, dst), |
761 | string_type *ptr AND | |
762 | unsigned int idx AND | |
763 | string_type *dst) | |
764 | { | |
765 | while (at(ptr, idx) && at(ptr, idx) != '\n') | |
766 | { | |
767 | catchar(dst, at(ptr, idx)); | |
768 | idx++; | |
769 | ||
770 | } | |
771 | catchar(dst, at(ptr, idx)); | |
772 | idx++; | |
773 | return idx; | |
774 | ||
775 | } | |
776 | ||
777 | WORD(icopy_past_newline) | |
778 | { | |
779 | tos++; | |
780 | init_string(tos); | |
781 | idx = copy_past_newline(ptr, idx, tos); | |
782 | pc++; | |
783 | } | |
784 | ||
785 | ||
786 | /* indent | |
787 | Take the string at the top of the stack, do some prettying */ | |
788 | ||
789 | ||
790 | ||
791 | ||
792 | WORD(kill_bogus_lines) | |
793 | { | |
794 | int sl ; | |
795 | ||
8a0efa53 CF |
796 | int idx = 0; |
797 | int c; | |
798 | int dot = 0 ; | |
799 | ||
800 | string_type out; | |
801 | init_string(&out); | |
802 | /* Drop leading nl */ | |
803 | while (at(tos,idx) == '\n') | |
804 | { | |
805 | idx++; | |
806 | } | |
807 | c = idx; | |
808 | ||
809 | /* Find the last char */ | |
810 | while (at(tos,idx)) | |
811 | { | |
812 | idx++; | |
813 | } | |
814 | ||
815 | /* find the last non white before the nl */ | |
816 | idx--; | |
817 | ||
818 | while (idx && isspace(at(tos,idx))) | |
819 | idx--; | |
820 | idx++; | |
821 | ||
822 | /* Copy buffer upto last char, but blank lines before and after | |
823 | dots don't count */ | |
824 | sl = 1; | |
825 | ||
826 | while (c < idx) | |
827 | { | |
828 | if (at(tos,c) == '\n' | |
829 | && at(tos,c+1) == '\n' | |
830 | && at(tos,c+2) == '.') | |
831 | { | |
832 | /* Ignore two linelines before a dot*/ | |
833 | c++; | |
834 | } | |
835 | else if (at(tos,c) == '.' && sl) | |
836 | { | |
837 | /* remember that this line started with a dot */ | |
838 | dot=2; | |
839 | } | |
840 | else if (at(tos,c) == '\n' | |
841 | && at(tos,c+1) == '\n' | |
842 | && dot) | |
843 | { | |
844 | c++; | |
845 | /* Ignore two newlines when last line was dot */ | |
846 | } | |
847 | ||
848 | catchar(&out, at(tos,c)); | |
849 | if (at(tos,c) == '\n') | |
850 | { | |
851 | sl = 1; | |
852 | ||
853 | if (dot == 2)dot=1;else dot = 0; | |
854 | } | |
855 | ||
856 | c++; | |
857 | ||
858 | } | |
859 | ||
860 | /* Append nl*/ | |
861 | catchar(&out, '\n'); | |
862 | pc++; | |
863 | delete_string(tos); | |
864 | *tos = out; | |
865 | ||
866 | ||
867 | } | |
868 | ||
869 | WORD(indent) | |
870 | { | |
871 | string_type out; | |
872 | int tab = 0; | |
873 | int idx = 0; | |
874 | int ol =0; | |
875 | init_string(&out); | |
876 | while (at(tos,idx)) { | |
877 | switch (at(tos,idx)) | |
878 | { | |
879 | case '\n': | |
880 | cattext(&out,"\n"); | |
881 | idx++; | |
882 | if (tab) | |
883 | { | |
884 | cattext(&out," "); | |
885 | } | |
886 | ol = 0; | |
887 | break; | |
888 | case '(': | |
889 | tab++; | |
890 | if (ol == 0) | |
891 | cattext(&out," "); | |
892 | idx++; | |
893 | cattext(&out,"("); | |
894 | ol = 1; | |
895 | break; | |
896 | case ')': | |
897 | tab--; | |
898 | cattext(&out,")"); | |
899 | idx++; | |
900 | ol=1; | |
901 | ||
902 | break; | |
903 | default: | |
904 | catchar(&out,at(tos,idx)); | |
905 | ol=1; | |
906 | ||
907 | idx++; | |
908 | break; | |
909 | } | |
910 | } | |
911 | ||
912 | pc++; | |
913 | delete_string(tos); | |
914 | *tos = out; | |
915 | ||
916 | } | |
917 | ||
918 | /* Change the TOS so that all that is left is the stuff inside the | |
919 | first <<foo>> . | |
920 | */ | |
921 | ||
922 | WORD(get_stuff_in_angle) | |
923 | { | |
924 | unsigned int idx = 0; | |
925 | string_type out; | |
926 | init_string(&out); | |
927 | ||
928 | while (at(tos, idx)) | |
929 | { | |
930 | if (at(tos,idx) == '<' && at(tos,idx+1) =='<') | |
931 | { | |
932 | idx+=2; | |
933 | ||
934 | while (!(at(tos,idx) == '>' && at(tos,idx+1) == '>')) | |
935 | { | |
936 | catchar(&out, at(tos, idx)); | |
937 | idx++; | |
938 | } | |
939 | break; | |
940 | } | |
941 | idx++; | |
942 | } | |
943 | catchar(&out,'\n'); | |
944 | ||
945 | overwrite_string(tos, &out); | |
946 | pc++; | |
947 | } | |
948 | ||
949 | ||
950 | WORD(get_stuff_in_command) | |
951 | { | |
952 | tos++; | |
953 | init_string(tos); | |
954 | ||
955 | while (at(ptr, idx)) { | |
956 | if (iscommand(ptr, idx)) break; | |
957 | idx = copy_past_newline(ptr, idx, tos); | |
958 | } | |
959 | pc++; | |
960 | } | |
961 | ||
962 | WORD(swap) | |
963 | { | |
964 | string_type t; | |
965 | ||
966 | t = tos[0]; | |
967 | tos[0] = tos[-1]; | |
968 | tos[-1] =t; | |
969 | pc++; | |
970 | ||
971 | } | |
972 | ||
e041a958 | 973 | WORD(dup_) |
8a0efa53 CF |
974 | { |
975 | tos++; | |
976 | init_string(tos); | |
977 | catstr(tos, tos-1); | |
978 | pc++; | |
979 | ||
980 | } | |
981 | ||
982 | ||
983 | ||
984 | WORD(icatstr) | |
985 | { | |
986 | catstr(tos-1, tos); | |
987 | delete_string(tos); | |
988 | tos--; | |
989 | pc++; | |
990 | ||
991 | } | |
992 | ||
993 | WORD(skip_past_newline) | |
994 | { | |
995 | while (at(ptr,idx) | |
996 | && at(ptr,idx) != '\n') | |
997 | idx++; | |
998 | idx++; | |
999 | pc++; | |
1000 | } | |
1001 | ||
1002 | ||
1003 | WORD(internalmode) | |
1004 | { | |
1005 | internal_mode = *(isp); | |
1006 | isp--; | |
1007 | pc++; | |
1008 | } | |
1009 | ||
1010 | WORD(maybecatstr) | |
1011 | { | |
1012 | if (internal_wanted == internal_mode) | |
1013 | { | |
1014 | catstr(tos-1, tos); | |
1015 | } | |
1016 | delete_string(tos); | |
1017 | tos--; | |
1018 | pc++; | |
1019 | ||
1020 | } | |
1021 | ||
1022 | char * | |
1023 | DEFUN(nextword,(string, word), | |
1024 | char *string AND | |
1025 | char **word) | |
1026 | { | |
1027 | char *word_start; | |
1028 | int idx; | |
1029 | char *dst; | |
1030 | char *src; | |
1031 | ||
1032 | int length = 0; | |
1033 | ||
1034 | while (isspace(*string) || *string == '-') { | |
1035 | if (*string == '-') | |
1036 | { | |
1037 | while (*string && *string != '\n') | |
1038 | string++; | |
1039 | ||
1040 | } | |
1041 | else { | |
1042 | string++; | |
1043 | } | |
1044 | } | |
1045 | if (!*string) return 0; | |
1046 | ||
1047 | word_start = string; | |
1048 | if (*string == '"') | |
1049 | { | |
1050 | string++; | |
1051 | length++; | |
1052 | ||
1053 | while (*string != '"') | |
1054 | { | |
1055 | string++; | |
1056 | length++; | |
1057 | } | |
1058 | } | |
1059 | else | |
1060 | { | |
1061 | ||
1062 | ||
1063 | while (!isspace(*string)) | |
1064 | { | |
1065 | string++; | |
1066 | length++; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | *word = malloc(length + 1); | |
1071 | ||
1072 | dst = *word; | |
1073 | src = word_start; | |
1074 | ||
1075 | ||
1076 | for (idx= 0; idx < length; idx++) | |
1077 | { | |
1078 | ||
1079 | if (src[idx] == '\\' && src[idx+1] == 'n') | |
1080 | { | |
1081 | *dst++ = '\n'; | |
1082 | idx++; | |
1083 | ||
1084 | } | |
1085 | else *dst++ = src[idx]; | |
1086 | } | |
1087 | *dst++ = 0; | |
1088 | ||
1089 | ||
1090 | ||
1091 | ||
1092 | ||
1093 | if(*string) | |
1094 | return string + 1; | |
1095 | else | |
1096 | return 0; | |
1097 | ||
1098 | } | |
1099 | dict_type *root; | |
1100 | dict_type * | |
1101 | DEFUN(lookup_word,(word), | |
1102 | char *word) | |
1103 | { | |
1104 | dict_type *ptr = root; | |
1105 | while (ptr) { | |
1106 | if (strcmp(ptr->word, word) == 0) return ptr; | |
1107 | ptr = ptr->next; | |
1108 | ||
1109 | } | |
1110 | fprintf(stderr,"Can't find %s\n",word); | |
1111 | return 0; | |
1112 | ||
1113 | ||
1114 | } | |
1115 | ||
06bd0ecc | 1116 | static int DEFUN_VOID(perform) |
8a0efa53 CF |
1117 | { |
1118 | tos = stack; | |
06bd0ecc | 1119 | int errors = 0; |
8a0efa53 CF |
1120 | |
1121 | while (at(ptr, idx)) { | |
1122 | /* It's worth looking through the command list */ | |
1123 | if (iscommand(ptr, idx)) | |
1124 | { | |
8a0efa53 CF |
1125 | char *next; |
1126 | dict_type *word ; | |
1127 | ||
1128 | (void) nextword(addr(ptr, idx), &next); | |
1129 | ||
1130 | ||
1131 | word = lookup_word(next); | |
1132 | ||
1133 | ||
1134 | ||
1135 | ||
1136 | if (word) | |
1137 | { | |
3ed024dc | 1138 | if(Verbose) fprintf(stderr, "CMD '%s'\n", word->word); |
8a0efa53 CF |
1139 | exec(word); |
1140 | } | |
1141 | else | |
1142 | { | |
1143 | fprintf(stderr,"warning, %s is not recognised\n", next); | |
06bd0ecc | 1144 | errors++; |
8a0efa53 CF |
1145 | skip_past_newline(); |
1146 | } | |
1147 | ||
1148 | } | |
1149 | else skip_past_newline(); | |
1150 | ||
1151 | } | |
06bd0ecc | 1152 | return errors; |
8a0efa53 CF |
1153 | } |
1154 | ||
1155 | dict_type * | |
1156 | DEFUN(newentry,(word), | |
1157 | char *word) | |
1158 | { | |
1159 | dict_type *new = (dict_type *)malloc(sizeof(dict_type)); | |
1160 | new->word = word; | |
1161 | new->next = root; | |
1162 | root = new; | |
1163 | new->code = (stinst_type *)malloc(sizeof(stinst_type )); | |
1164 | new->code_length = 1; | |
1165 | new->code_end = 0; | |
1166 | return new; | |
1167 | ||
1168 | } | |
1169 | ||
1170 | ||
1171 | unsigned int | |
1172 | DEFUN(add_to_definition,(entry, word), | |
1173 | dict_type *entry AND | |
1174 | stinst_type word) | |
1175 | { | |
1176 | if (entry->code_end == entry->code_length) | |
1177 | { | |
1178 | entry->code_length += 2; | |
1179 | entry->code = | |
1180 | (stinst_type *) realloc((char *)(entry->code), | |
1181 | entry->code_length *sizeof(word_type)); | |
1182 | } | |
1183 | entry->code[entry->code_end] = word; | |
1184 | ||
1185 | return entry->code_end++; | |
1186 | } | |
1187 | ||
1188 | ||
1189 | ||
1190 | ||
1191 | ||
1192 | ||
1193 | ||
1194 | void | |
1195 | DEFUN(add_intrinsic,(name, func), | |
1196 | char *name AND | |
3ed024dc | 1197 | void (*func)(NOARGS)) |
8a0efa53 CF |
1198 | { |
1199 | dict_type *new = newentry(name); | |
1200 | add_to_definition(new, func); | |
1201 | add_to_definition(new, 0); | |
1202 | } | |
1203 | ||
8a0efa53 CF |
1204 | void |
1205 | DEFUN(add_var,(name), | |
1206 | char *name) | |
1207 | { | |
1208 | dict_type *new = newentry(name); | |
1209 | add_to_definition(new, push_number); | |
1210 | add_to_definition(new, (stinst_type)(&(new->var))); | |
1211 | add_to_definition(new,0); | |
1212 | ||
1213 | } | |
1214 | ||
1215 | ||
1216 | ||
1217 | ||
3ed024dc | 1218 | int |
8a0efa53 CF |
1219 | DEFUN(compile, (string), |
1220 | char *string) | |
1221 | ||
1222 | { | |
3ed024dc | 1223 | int ret=0; |
8a0efa53 CF |
1224 | /* add words to the dictionary */ |
1225 | char *word; | |
06bd0ecc JT |
1226 | dict_type *lookup; |
1227 | ||
8a0efa53 CF |
1228 | string = nextword(string, &word); |
1229 | while (string && *string && word[0]) | |
1230 | { | |
1231 | if (strcmp(word,"var")==0) | |
1232 | { | |
3ed024dc | 1233 | string=nextword(string, &word); |
8a0efa53 CF |
1234 | |
1235 | add_var(word); | |
3ed024dc | 1236 | string=nextword(string, &word); |
8a0efa53 | 1237 | } |
3ed024dc | 1238 | else |
8a0efa53 CF |
1239 | |
1240 | if (word[0] == ':') | |
1241 | { | |
1242 | dict_type *ptr; | |
1243 | /* Compile a word and add to dictionary */ | |
1244 | string = nextword(string, &word); | |
3ed024dc JJ |
1245 | if(Verbose) fprintf(stderr, "Found command '%s'\n", word); |
1246 | if(strlen(word) < MIN_CMDLEN) { | |
1247 | fprintf(stderr, "ERROR: Command '%s' is too short ", word); | |
1248 | fprintf(stderr, "(MIN_CMDLEN is %d)\n", MIN_CMDLEN); | |
1249 | ret++; | |
1250 | } | |
8a0efa53 CF |
1251 | |
1252 | ptr = newentry(word); | |
1253 | string = nextword(string, &word); | |
1254 | while (word[0] != ';' ) | |
1255 | { | |
1256 | switch (word[0]) | |
1257 | { | |
1258 | ||
1259 | ||
1260 | case '"': | |
1261 | /* got a string, embed magic push string | |
1262 | function */ | |
1263 | add_to_definition(ptr, push_text); | |
1264 | add_to_definition(ptr, (stinst_type)(word+1)); | |
1265 | break; | |
1266 | case '0': | |
1267 | case '1': | |
1268 | case '2': | |
1269 | case '3': | |
1270 | case '4': | |
1271 | case '5': | |
1272 | case '6': | |
1273 | case '7': | |
1274 | case '8': | |
1275 | case '9': | |
1276 | /* Got a number, embedd the magic push number | |
1277 | function */ | |
1278 | add_to_definition(ptr, push_number); | |
1279 | add_to_definition(ptr, atol(word)); | |
1280 | break; | |
1281 | default: | |
1282 | add_to_definition(ptr, call); | |
06bd0ecc JT |
1283 | lookup = lookup_word(word); |
1284 | if (!lookup) ret++; | |
1285 | add_to_definition(ptr, lookup); | |
8a0efa53 CF |
1286 | } |
1287 | ||
1288 | string = nextword(string, &word); | |
1289 | } | |
1290 | add_to_definition(ptr,0); | |
1291 | string = nextword(string, &word); | |
1292 | } | |
1293 | else | |
1294 | { | |
1295 | fprintf(stderr,"syntax error at %s\n",string-1); | |
3ed024dc | 1296 | ret++; |
8a0efa53 CF |
1297 | } |
1298 | } | |
1299 | ||
3ed024dc | 1300 | return(ret); |
8a0efa53 CF |
1301 | } |
1302 | ||
1303 | ||
1304 | static void DEFUN_VOID(bang) | |
1305 | { | |
4fab65dc | 1306 | *(uintptr_t *)((isp[0])) = isp[-1]; |
8a0efa53 CF |
1307 | isp-=2; |
1308 | pc++; | |
1309 | ||
1310 | } | |
1311 | ||
1312 | WORD(atsign) | |
1313 | { | |
4fab65dc | 1314 | isp[0] = *(uintptr_t *)(isp[0]); |
8a0efa53 CF |
1315 | pc++; |
1316 | } | |
1317 | ||
1318 | WORD(hello) | |
1319 | { | |
1320 | ||
1321 | printf("hello\n"); | |
1322 | pc++; | |
1323 | } | |
1324 | ||
1325 | ||
1326 | ||
1327 | static void DEFUN(read_in, (str, file), | |
1328 | string_type *str AND | |
1329 | FILE *file) | |
1330 | { | |
1331 | char buff[10000]; | |
1332 | unsigned int r; | |
1333 | do | |
1334 | { | |
1335 | r = fread(buff, 1, sizeof(buff), file); | |
1336 | catbuf(str, buff, r); | |
1337 | } | |
1338 | while (r); | |
1339 | buff[0] = 0; | |
1340 | ||
1341 | catbuf(str, buff,1); | |
1342 | ||
1343 | } | |
1344 | ||
1345 | ||
3ed024dc | 1346 | #if 0 |
8a0efa53 CF |
1347 | static void DEFUN_VOID(usage) |
1348 | { | |
3ed024dc | 1349 | fprintf(stderr,"usage: -[i|v] -f macrofile <file >file\n"); |
8a0efa53 CF |
1350 | exit(33); |
1351 | } | |
3ed024dc | 1352 | #endif |
8a0efa53 CF |
1353 | |
1354 | int DEFUN(main,(ac,av), | |
1355 | int ac AND | |
1356 | char *av[]) | |
1357 | { | |
1358 | unsigned int i; | |
06bd0ecc | 1359 | int status = 0; |
8a0efa53 CF |
1360 | |
1361 | string_type buffer; | |
1362 | string_type pptr; | |
1363 | ||
1364 | ||
1365 | init_string(&buffer); | |
1366 | init_string(&pptr); | |
1367 | init_string(stack+0); | |
1368 | tos=stack+1; | |
1369 | ptr = &pptr; | |
1370 | ||
1371 | add_intrinsic("push_text", push_text); | |
1372 | add_intrinsic("!", bang); | |
1373 | add_intrinsic("@", atsign); | |
1374 | add_intrinsic("hello",hello); | |
1375 | add_intrinsic("skip_past_newline", skip_past_newline ); | |
1376 | add_intrinsic("catstr", icatstr ); | |
1377 | add_intrinsic("copy_past_newline", icopy_past_newline ); | |
e041a958 | 1378 | add_intrinsic("dup", dup_ ); |
8a0efa53 CF |
1379 | add_intrinsic("remchar", remchar ); |
1380 | add_intrinsic("get_stuff_in_command", get_stuff_in_command ); | |
1381 | add_intrinsic("get_stuff_in_angle", get_stuff_in_angle ); | |
1382 | add_intrinsic("do_fancy_stuff", do_fancy_stuff ); | |
1383 | add_intrinsic("bulletize", bulletize ); | |
1384 | add_intrinsic("courierize", courierize ); | |
1385 | add_intrinsic("swap", swap ); | |
1386 | add_intrinsic("outputdots", outputdots ); | |
1387 | add_intrinsic("exfunstuff", exfunstuff ); | |
1388 | add_intrinsic("maybecatstr", maybecatstr ); | |
1389 | add_intrinsic("translatecomments", translatecomments ); | |
1390 | add_intrinsic("kill_bogus_lines", kill_bogus_lines); | |
1391 | add_intrinsic("indent", indent); | |
8a0efa53 CF |
1392 | add_intrinsic("internalmode", internalmode); |
1393 | ||
1394 | /* Put a nl at the start */ | |
1395 | catchar(&buffer,'\n'); | |
1396 | ||
1397 | read_in(&buffer, stdin); | |
1398 | remove_noncomments(&buffer, ptr); | |
1399 | for (i= 1; i < ac; i++) | |
1400 | { | |
1401 | if (av[i][0] == '-') | |
1402 | { | |
1403 | if (av[i][1] == 'f') | |
1404 | { | |
1405 | string_type b; | |
1406 | FILE *f; | |
1407 | init_string(&b); | |
1408 | ||
1409 | f = fopen(av[i+1],"r"); | |
1410 | if (!f) | |
1411 | { | |
1412 | fprintf(stderr,"Can't open the input file %s\n",av[i+1]); | |
1413 | return 33; | |
1414 | } | |
3ed024dc | 1415 | if(Verbose) fprintf(stderr, "Reading -f '%s'\n", av[i+1]); |
8a0efa53 CF |
1416 | |
1417 | ||
1418 | read_in(&b, f); | |
3ed024dc | 1419 | if( compile(b.ptr) ) { fclose(f); exit(1); } |
06bd0ecc | 1420 | status = perform(); |
3ed024dc | 1421 | fclose(f); |
8a0efa53 CF |
1422 | } |
1423 | else if (av[i][1] == 'i') | |
1424 | { | |
1425 | internal_wanted = 1; | |
1426 | } | |
3ed024dc JJ |
1427 | else if (av[i][1] == 'v') |
1428 | { | |
1429 | Verbose++; | |
1430 | } | |
8a0efa53 CF |
1431 | } |
1432 | ||
1433 | } | |
1434 | write_buffer(stack+0); | |
06bd0ecc | 1435 | return status; |
8a0efa53 | 1436 | } |