File: | src/gnu/usr.bin/binutils/bfd/doc/chew.c |
Warning: | line 1323, column 18 Result of 'realloc' is converted to a pointer of type 'stinst_type', which is incompatible with sizeof operand type 'word_type' |
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1 | /* chew |
2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, |
3 | 2002, 2003 |
4 | Free Software Foundation, Inc. |
5 | Contributed by steve chamberlain @cygnus |
6 | |
7 | This file is part of BFD, the Binary File Descriptor library. |
8 | |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by |
11 | the Free Software Foundation; either version 2 of the License, or |
12 | (at your option) any later version. |
13 | |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. |
18 | |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
22 | |
23 | /* Yet another way of extracting documentation from source. |
24 | No, I haven't finished it yet, but I hope you people like it better |
25 | than the old way |
26 | |
27 | sac |
28 | |
29 | Basically, this is a sort of string forth, maybe we should call it |
30 | struth? |
31 | |
32 | You define new words thus: |
33 | : <newword> <oldwords> ; |
34 | |
35 | */ |
36 | |
37 | /* Primitives provided by the program: |
38 | |
39 | Two stacks are provided, a string stack and an integer stack. |
40 | |
41 | Internal state variables: |
42 | internal_wanted - indicates whether `-i' was passed |
43 | internal_mode - user-settable |
44 | |
45 | Commands: |
46 | push_text |
47 | ! - pop top of integer stack for address, pop next for value; store |
48 | @ - treat value on integer stack as the address of an integer; push |
49 | that integer on the integer stack after popping the "address" |
50 | hello - print "hello\n" to stdout |
51 | stdout - put stdout marker on TOS |
52 | stderr - put stderr marker on TOS |
53 | print - print TOS-1 on TOS (eg: "hello\n" stdout print) |
54 | skip_past_newline |
55 | catstr - fn icatstr |
56 | copy_past_newline - append input, up to and including newline into TOS |
57 | dup - fn other_dup |
58 | drop - discard TOS |
59 | idrop - ditto |
60 | remchar - delete last character from TOS |
61 | get_stuff_in_command |
62 | do_fancy_stuff - translate <<foo>> to @code{foo} in TOS |
63 | bulletize - if "o" lines found, prepend @itemize @bullet to TOS |
64 | and @item to each "o" line; append @end itemize |
65 | courierize - put @example around . and | lines, translate {* *} { } |
66 | exit - fn chew_exit |
67 | swap |
68 | outputdots - strip out lines without leading dots |
69 | paramstuff - convert full declaration into "PARAMS" form if not already |
70 | maybecatstr - do catstr if internal_mode == internal_wanted, discard |
71 | value in any case |
72 | translatecomments - turn {* and *} into comment delimiters |
73 | kill_bogus_lines - get rid of extra newlines |
74 | indent |
75 | internalmode - pop from integer stack, set `internalmode' to that value |
76 | print_stack_level - print current stack depth to stderr |
77 | strip_trailing_newlines - go ahead, guess... |
78 | [quoted string] - push string onto string stack |
79 | [word starting with digit] - push atol(str) onto integer stack |
80 | |
81 | A command must be all upper-case, and alone on a line. |
82 | |
83 | Foo. */ |
84 | |
85 | #include "ansidecl.h" |
86 | #include "sysdep.h" |
87 | #include <assert.h> |
88 | #include <stdio.h> |
89 | #include <ctype.h> |
90 | |
91 | #define DEF_SIZE5000 5000 |
92 | #define STACK50 50 |
93 | |
94 | int internal_wanted; |
95 | int internal_mode; |
96 | |
97 | int warning; |
98 | |
99 | /* Here is a string type ... */ |
100 | |
101 | typedef struct buffer |
102 | { |
103 | char *ptr; |
104 | unsigned long write_idx; |
105 | unsigned long size; |
106 | } string_type; |
107 | |
108 | #ifdef __STDC__1 |
109 | static void init_string_with_size (string_type *, unsigned int); |
110 | static void init_string (string_type *); |
111 | static int find (string_type *, char *); |
112 | static void write_buffer (string_type *, FILE *); |
113 | static void delete_string (string_type *); |
114 | static char *addr (string_type *, unsigned int); |
115 | static char at (string_type *, unsigned int); |
116 | static void catchar (string_type *, int); |
117 | static void overwrite_string (string_type *, string_type *); |
118 | static void catbuf (string_type *, char *, unsigned int); |
119 | static void cattext (string_type *, char *); |
120 | static void catstr (string_type *, string_type *); |
121 | #endif |
122 | |
123 | static void |
124 | init_string_with_size (buffer, size) |
125 | string_type *buffer; |
126 | unsigned int size; |
127 | { |
128 | buffer->write_idx = 0; |
129 | buffer->size = size; |
130 | buffer->ptr = malloc (size); |
131 | } |
132 | |
133 | static void |
134 | init_string (buffer) |
135 | string_type *buffer; |
136 | { |
137 | init_string_with_size (buffer, DEF_SIZE5000); |
138 | } |
139 | |
140 | static int |
141 | find (str, what) |
142 | string_type *str; |
143 | char *what; |
144 | { |
145 | unsigned int i; |
146 | char *p; |
147 | p = what; |
148 | for (i = 0; i < str->write_idx && *p; i++) |
149 | { |
150 | if (*p == str->ptr[i]) |
151 | p++; |
152 | else |
153 | p = what; |
154 | } |
155 | return (*p == 0); |
156 | } |
157 | |
158 | static void |
159 | write_buffer (buffer, f) |
160 | string_type *buffer; |
161 | FILE *f; |
162 | { |
163 | fwrite (buffer->ptr, buffer->write_idx, 1, f); |
164 | } |
165 | |
166 | static void |
167 | delete_string (buffer) |
168 | string_type *buffer; |
169 | { |
170 | free (buffer->ptr); |
171 | } |
172 | |
173 | static char * |
174 | addr (buffer, idx) |
175 | string_type *buffer; |
176 | unsigned int idx; |
177 | { |
178 | return buffer->ptr + idx; |
179 | } |
180 | |
181 | static char |
182 | at (buffer, pos) |
183 | string_type *buffer; |
184 | unsigned int pos; |
185 | { |
186 | if (pos >= buffer->write_idx) |
187 | return 0; |
188 | return buffer->ptr[pos]; |
189 | } |
190 | |
191 | static void |
192 | catchar (buffer, ch) |
193 | string_type *buffer; |
194 | int ch; |
195 | { |
196 | if (buffer->write_idx == buffer->size) |
197 | { |
198 | buffer->size *= 2; |
199 | buffer->ptr = realloc (buffer->ptr, buffer->size); |
200 | } |
201 | |
202 | buffer->ptr[buffer->write_idx++] = ch; |
203 | } |
204 | |
205 | static void |
206 | overwrite_string (dst, src) |
207 | string_type *dst; |
208 | string_type *src; |
209 | { |
210 | free (dst->ptr); |
211 | dst->size = src->size; |
212 | dst->write_idx = src->write_idx; |
213 | dst->ptr = src->ptr; |
214 | } |
215 | |
216 | static void |
217 | catbuf (buffer, buf, len) |
218 | string_type *buffer; |
219 | char *buf; |
220 | unsigned int len; |
221 | { |
222 | if (buffer->write_idx + len >= buffer->size) |
223 | { |
224 | while (buffer->write_idx + len >= buffer->size) |
225 | buffer->size *= 2; |
226 | buffer->ptr = realloc (buffer->ptr, buffer->size); |
227 | } |
228 | memcpy (buffer->ptr + buffer->write_idx, buf, len); |
229 | buffer->write_idx += len; |
230 | } |
231 | |
232 | static void |
233 | cattext (buffer, string) |
234 | string_type *buffer; |
235 | char *string; |
236 | { |
237 | catbuf (buffer, string, (unsigned int) strlen (string)); |
238 | } |
239 | |
240 | static void |
241 | catstr (dst, src) |
242 | string_type *dst; |
243 | string_type *src; |
244 | { |
245 | catbuf (dst, src->ptr, src->write_idx); |
246 | } |
247 | |
248 | static unsigned int |
249 | skip_white_and_stars (src, idx) |
250 | string_type *src; |
251 | unsigned int idx; |
252 | { |
253 | char c; |
254 | while ((c = at (src, idx)), |
255 | isspace ((unsigned char) c) |
256 | || (c == '*' |
257 | /* Don't skip past end-of-comment or star as first |
258 | character on its line. */ |
259 | && at (src, idx +1) != '/' |
260 | && at (src, idx -1) != '\n')) |
261 | idx++; |
262 | return idx; |
263 | } |
264 | |
265 | /***********************************************************************/ |
266 | |
267 | string_type stack[STACK50]; |
268 | string_type *tos; |
269 | |
270 | unsigned int idx = 0; /* Pos in input buffer */ |
271 | string_type *ptr; /* and the buffer */ |
272 | typedef void (*stinst_type)(); |
273 | stinst_type *pc; |
274 | stinst_type sstack[STACK50]; |
275 | stinst_type *ssp = &sstack[0]; |
276 | long istack[STACK50]; |
277 | long *isp = &istack[0]; |
278 | |
279 | typedef int *word_type; |
280 | |
281 | struct dict_struct |
282 | { |
283 | char *word; |
284 | struct dict_struct *next; |
285 | stinst_type *code; |
286 | int code_length; |
287 | int code_end; |
288 | int var; |
289 | }; |
290 | |
291 | typedef struct dict_struct dict_type; |
292 | |
293 | static void |
294 | die (msg) |
295 | char *msg; |
296 | { |
297 | fprintf (stderr(&__sF[2]), "%s\n", msg); |
298 | exit (1); |
299 | } |
300 | |
301 | static void |
302 | check_range () |
303 | { |
304 | if (tos < stack) |
305 | die ("underflow in string stack"); |
306 | if (tos >= stack + STACK50) |
307 | die ("overflow in string stack"); |
308 | } |
309 | |
310 | static void |
311 | icheck_range () |
312 | { |
313 | if (isp < istack) |
314 | die ("underflow in integer stack"); |
315 | if (isp >= istack + STACK50) |
316 | die ("overflow in integer stack"); |
317 | } |
318 | |
319 | #ifdef __STDC__1 |
320 | static void exec (dict_type *); |
321 | static void call (void); |
322 | static void remchar (void), strip_trailing_newlines (void), push_number (void); |
323 | static void push_text (void); |
324 | static void remove_noncomments (string_type *, string_type *); |
325 | static void print_stack_level (void); |
326 | static void paramstuff (void), translatecomments (void); |
327 | static void outputdots (void), courierize (void), bulletize (void); |
328 | static void do_fancy_stuff (void); |
329 | static int iscommand (string_type *, unsigned int); |
330 | static int copy_past_newline (string_type *, unsigned int, string_type *); |
331 | static void icopy_past_newline (void), kill_bogus_lines (void), indent (void); |
332 | static void get_stuff_in_command (void), swap (void), other_dup (void); |
333 | static void drop (void), idrop (void); |
334 | static void icatstr (void), skip_past_newline (void), internalmode (void); |
335 | static void maybecatstr (void); |
336 | static char *nextword (char *, char **); |
337 | dict_type *lookup_word (char *); |
338 | static void perform (void); |
339 | dict_type *newentry (char *); |
340 | unsigned int add_to_definition (dict_type *, stinst_type); |
341 | void add_intrinsic (char *, void (*)()); |
342 | void add_var (char *); |
343 | void compile (char *); |
344 | static void bang (void); |
345 | static void atsign (void); |
346 | static void hello (void); |
347 | static void stdout_ (void); |
348 | static void stderr_ (void); |
349 | static void print (void); |
350 | static void read_in (string_type *, FILE *); |
351 | static void usage (void); |
352 | static void chew_exit (void); |
353 | #endif |
354 | |
355 | static void |
356 | exec (word) |
357 | dict_type *word; |
358 | { |
359 | pc = word->code; |
360 | while (*pc) |
361 | (*pc) (); |
362 | } |
363 | |
364 | static void |
365 | call () |
366 | { |
367 | stinst_type *oldpc = pc; |
368 | dict_type *e; |
369 | e = (dict_type *) (pc[1]); |
370 | exec (e); |
371 | pc = oldpc + 2; |
372 | } |
373 | |
374 | static void |
375 | remchar () |
376 | { |
377 | if (tos->write_idx) |
378 | tos->write_idx--; |
379 | pc++; |
380 | } |
381 | |
382 | static void |
383 | strip_trailing_newlines () |
384 | { |
385 | while ((isspace ((unsigned char) at (tos, tos->write_idx - 1)) |
386 | || at (tos, tos->write_idx - 1) == '\n') |
387 | && tos->write_idx > 0) |
388 | tos->write_idx--; |
389 | pc++; |
390 | } |
391 | |
392 | static void |
393 | push_number () |
394 | { |
395 | isp++; |
396 | icheck_range (); |
397 | pc++; |
398 | *isp = (long) (*pc); |
399 | pc++; |
400 | } |
401 | |
402 | static void |
403 | push_text () |
404 | { |
405 | tos++; |
406 | check_range (); |
407 | init_string (tos); |
408 | pc++; |
409 | cattext (tos, *((char **) pc)); |
410 | pc++; |
411 | } |
412 | |
413 | /* This function removes everything not inside comments starting on |
414 | the first char of the line from the string, also when copying |
415 | comments, removes blank space and leading *'s. |
416 | Blank lines are turned into one blank line. */ |
417 | |
418 | static void |
419 | remove_noncomments (src, dst) |
420 | string_type *src; |
421 | string_type *dst; |
422 | { |
423 | unsigned int idx = 0; |
424 | |
425 | while (at (src, idx)) |
426 | { |
427 | /* Now see if we have a comment at the start of the line. */ |
428 | if (at (src, idx) == '\n' |
429 | && at (src, idx + 1) == '/' |
430 | && at (src, idx + 2) == '*') |
431 | { |
432 | idx += 3; |
433 | |
434 | idx = skip_white_and_stars (src, idx); |
435 | |
436 | /* Remove leading dot */ |
437 | if (at (src, idx) == '.') |
438 | idx++; |
439 | |
440 | /* Copy to the end of the line, or till the end of the |
441 | comment. */ |
442 | while (at (src, idx)) |
443 | { |
444 | if (at (src, idx) == '\n') |
445 | { |
446 | /* end of line, echo and scrape of leading blanks */ |
447 | if (at (src, idx + 1) == '\n') |
448 | catchar (dst, '\n'); |
449 | catchar (dst, '\n'); |
450 | idx++; |
451 | idx = skip_white_and_stars (src, idx); |
452 | } |
453 | else if (at (src, idx) == '*' && at (src, idx + 1) == '/') |
454 | { |
455 | idx += 2; |
456 | cattext (dst, "\nENDDD\n"); |
457 | break; |
458 | } |
459 | else |
460 | { |
461 | catchar (dst, at (src, idx)); |
462 | idx++; |
463 | } |
464 | } |
465 | } |
466 | else |
467 | idx++; |
468 | } |
469 | } |
470 | |
471 | static void |
472 | print_stack_level () |
473 | { |
474 | fprintf (stderr(&__sF[2]), "current string stack depth = %d, ", tos - stack); |
475 | fprintf (stderr(&__sF[2]), "current integer stack depth = %d\n", isp - istack); |
476 | pc++; |
477 | } |
478 | |
479 | /* turn: |
480 | foobar name(stuff); |
481 | into: |
482 | foobar |
483 | name PARAMS ((stuff)); |
484 | and a blank line. |
485 | */ |
486 | |
487 | static void |
488 | paramstuff () |
489 | { |
490 | unsigned int openp; |
491 | unsigned int fname; |
492 | unsigned int idx; |
493 | unsigned int len; |
494 | string_type out; |
495 | init_string (&out); |
496 | |
497 | #define NO_PARAMS1 1 |
498 | |
499 | /* Make sure that it's not already param'd or proto'd. */ |
500 | if (NO_PARAMS1 |
501 | || find (tos, "PARAMS") || find (tos, "PROTO") || !find (tos, "(")) |
502 | { |
503 | catstr (&out, tos); |
504 | } |
505 | else |
506 | { |
507 | /* Find the open paren. */ |
508 | for (openp = 0; at (tos, openp) != '(' && at (tos, openp); openp++) |
509 | ; |
510 | |
511 | fname = openp; |
512 | /* Step back to the fname. */ |
513 | fname--; |
514 | while (fname && isspace ((unsigned char) at (tos, fname))) |
515 | fname--; |
516 | while (fname |
517 | && !isspace ((unsigned char) at (tos,fname)) |
518 | && at (tos,fname) != '*') |
519 | fname--; |
520 | |
521 | fname++; |
522 | |
523 | /* Output type, omitting trailing whitespace character(s), if |
524 | any. */ |
525 | for (len = fname; 0 < len; len--) |
526 | { |
527 | if (!isspace ((unsigned char) at (tos, len - 1))) |
528 | break; |
529 | } |
530 | for (idx = 0; idx < len; idx++) |
531 | catchar (&out, at (tos, idx)); |
532 | |
533 | cattext (&out, "\n"); /* Insert a newline between type and fnname */ |
534 | |
535 | /* Output function name, omitting trailing whitespace |
536 | character(s), if any. */ |
537 | for (len = openp; 0 < len; len--) |
538 | { |
539 | if (!isspace ((unsigned char) at (tos, len - 1))) |
540 | break; |
541 | } |
542 | for (idx = fname; idx < len; idx++) |
543 | catchar (&out, at (tos, idx)); |
544 | |
545 | cattext (&out, " PARAMS ("); |
546 | |
547 | for (idx = openp; at (tos, idx) && at (tos, idx) != ';'; idx++) |
548 | catchar (&out, at (tos, idx)); |
549 | |
550 | cattext (&out, ");\n\n"); |
551 | } |
552 | overwrite_string (tos, &out); |
553 | pc++; |
554 | |
555 | } |
556 | |
557 | /* turn {* |
558 | and *} into comments */ |
559 | |
560 | static void |
561 | translatecomments () |
562 | { |
563 | unsigned int idx = 0; |
564 | string_type out; |
565 | init_string (&out); |
566 | |
567 | while (at (tos, idx)) |
568 | { |
569 | if (at (tos, idx) == '{' && at (tos, idx + 1) == '*') |
570 | { |
571 | cattext (&out, "/*"); |
572 | idx += 2; |
573 | } |
574 | else if (at (tos, idx) == '*' && at (tos, idx + 1) == '}') |
575 | { |
576 | cattext (&out, "*/"); |
577 | idx += 2; |
578 | } |
579 | else |
580 | { |
581 | catchar (&out, at (tos, idx)); |
582 | idx++; |
583 | } |
584 | } |
585 | |
586 | overwrite_string (tos, &out); |
587 | |
588 | pc++; |
589 | } |
590 | |
591 | #if 0 |
592 | |
593 | /* This is not currently used. */ |
594 | |
595 | /* turn everything not starting with a . into a comment */ |
596 | |
597 | static void |
598 | manglecomments () |
599 | { |
600 | unsigned int idx = 0; |
601 | string_type out; |
602 | init_string (&out); |
603 | |
604 | while (at (tos, idx)) |
605 | { |
606 | if (at (tos, idx) == '\n' && at (tos, idx + 1) == '*') |
607 | { |
608 | cattext (&out, " /*"); |
609 | idx += 2; |
610 | } |
611 | else if (at (tos, idx) == '*' && at (tos, idx + 1) == '}') |
612 | { |
613 | cattext (&out, "*/"); |
614 | idx += 2; |
615 | } |
616 | else |
617 | { |
618 | catchar (&out, at (tos, idx)); |
619 | idx++; |
620 | } |
621 | } |
622 | |
623 | overwrite_string (tos, &out); |
624 | |
625 | pc++; |
626 | } |
627 | |
628 | #endif |
629 | |
630 | /* Mod tos so that only lines with leading dots remain */ |
631 | static void |
632 | outputdots () |
633 | { |
634 | unsigned int idx = 0; |
635 | string_type out; |
636 | init_string (&out); |
637 | |
638 | while (at (tos, idx)) |
639 | { |
640 | if (at (tos, idx) == '\n' && at (tos, idx + 1) == '.') |
641 | { |
642 | char c; |
643 | idx += 2; |
644 | |
645 | while ((c = at (tos, idx)) && c != '\n') |
646 | { |
647 | if (c == '{' && at (tos, idx + 1) == '*') |
648 | { |
649 | cattext (&out, "/*"); |
650 | idx += 2; |
651 | } |
652 | else if (c == '*' && at (tos, idx + 1) == '}') |
653 | { |
654 | cattext (&out, "*/"); |
655 | idx += 2; |
656 | } |
657 | else |
658 | { |
659 | catchar (&out, c); |
660 | idx++; |
661 | } |
662 | } |
663 | catchar (&out, '\n'); |
664 | } |
665 | else |
666 | { |
667 | idx++; |
668 | } |
669 | } |
670 | |
671 | overwrite_string (tos, &out); |
672 | pc++; |
673 | } |
674 | |
675 | /* Find lines starting with . and | and put example around them on tos */ |
676 | static void |
677 | courierize () |
678 | { |
679 | string_type out; |
680 | unsigned int idx = 0; |
681 | int command = 0; |
682 | |
683 | init_string (&out); |
684 | |
685 | while (at (tos, idx)) |
686 | { |
687 | if (at (tos, idx) == '\n' |
688 | && (at (tos, idx +1 ) == '.' |
689 | || at (tos, idx + 1) == '|')) |
690 | { |
691 | cattext (&out, "\n@example\n"); |
692 | do |
693 | { |
694 | idx += 2; |
695 | |
696 | while (at (tos, idx) && at (tos, idx) != '\n') |
697 | { |
698 | if (command > 1) |
699 | { |
700 | /* We are inside {} parameters of some command; |
701 | Just pass through until matching brace. */ |
702 | if (at (tos, idx) == '{') |
703 | ++command; |
704 | else if (at (tos, idx) == '}') |
705 | --command; |
706 | } |
707 | else if (command != 0) |
708 | { |
709 | if (at (tos, idx) == '{') |
710 | ++command; |
711 | else if (!islower ((unsigned char) at (tos, idx))) |
712 | --command; |
713 | } |
714 | else if (at (tos, idx) == '@' |
715 | && islower ((unsigned char) at (tos, idx + 1))) |
716 | { |
717 | ++command; |
718 | } |
719 | else if (at (tos, idx) == '{' && at (tos, idx + 1) == '*') |
720 | { |
721 | cattext (&out, "/*"); |
722 | idx += 2; |
723 | continue; |
724 | } |
725 | else if (at (tos, idx) == '*' && at (tos, idx + 1) == '}') |
726 | { |
727 | cattext (&out, "*/"); |
728 | idx += 2; |
729 | continue; |
730 | } |
731 | else if (at (tos, idx) == '{' |
732 | || at (tos, idx) == '}') |
733 | { |
734 | catchar (&out, '@'); |
735 | } |
736 | |
737 | catchar (&out, at (tos, idx)); |
738 | idx++; |
739 | } |
740 | catchar (&out, '\n'); |
741 | } |
742 | while (at (tos, idx) == '\n' |
743 | && ((at (tos, idx + 1) == '.') |
744 | || (at (tos, idx + 1) == '|'))) |
745 | ; |
746 | cattext (&out, "@end example"); |
747 | } |
748 | else |
749 | { |
750 | catchar (&out, at (tos, idx)); |
751 | idx++; |
752 | } |
753 | } |
754 | |
755 | overwrite_string (tos, &out); |
756 | pc++; |
757 | } |
758 | |
759 | /* Finds any lines starting with "o ", if there are any, then turns |
760 | on @itemize @bullet, and @items each of them. Then ends with @end |
761 | itemize, inplace at TOS*/ |
762 | |
763 | static void |
764 | bulletize () |
765 | { |
766 | unsigned int idx = 0; |
767 | int on = 0; |
768 | string_type out; |
769 | init_string (&out); |
770 | |
771 | while (at (tos, idx)) |
772 | { |
773 | if (at (tos, idx) == '@' |
774 | && at (tos, idx + 1) == '*') |
775 | { |
776 | cattext (&out, "*"); |
777 | idx += 2; |
778 | } |
779 | else if (at (tos, idx) == '\n' |
780 | && at (tos, idx + 1) == 'o' |
781 | && isspace ((unsigned char) at (tos, idx + 2))) |
782 | { |
783 | if (!on) |
784 | { |
785 | cattext (&out, "\n@itemize @bullet\n"); |
786 | on = 1; |
787 | |
788 | } |
789 | cattext (&out, "\n@item\n"); |
790 | idx += 3; |
791 | } |
792 | else |
793 | { |
794 | catchar (&out, at (tos, idx)); |
795 | if (on && at (tos, idx) == '\n' |
796 | && at (tos, idx + 1) == '\n' |
797 | && at (tos, idx + 2) != 'o') |
798 | { |
799 | cattext (&out, "@end itemize"); |
800 | on = 0; |
801 | } |
802 | idx++; |
803 | |
804 | } |
805 | } |
806 | if (on) |
807 | { |
808 | cattext (&out, "@end itemize\n"); |
809 | } |
810 | |
811 | delete_string (tos); |
812 | *tos = out; |
813 | pc++; |
814 | } |
815 | |
816 | /* Turn <<foo>> into @code{foo} in place at TOS*/ |
817 | |
818 | static void |
819 | do_fancy_stuff () |
820 | { |
821 | unsigned int idx = 0; |
822 | string_type out; |
823 | init_string (&out); |
824 | while (at (tos, idx)) |
825 | { |
826 | if (at (tos, idx) == '<' |
827 | && at (tos, idx + 1) == '<' |
828 | && !isspace ((unsigned char) at (tos, idx + 2))) |
829 | { |
830 | /* This qualifies as a << startup. */ |
831 | idx += 2; |
832 | cattext (&out, "@code{"); |
833 | while (at (tos, idx) |
834 | && at (tos, idx) != '>' ) |
835 | { |
836 | catchar (&out, at (tos, idx)); |
837 | idx++; |
838 | |
839 | } |
840 | cattext (&out, "}"); |
841 | idx += 2; |
842 | } |
843 | else |
844 | { |
845 | catchar (&out, at (tos, idx)); |
846 | idx++; |
847 | } |
848 | } |
849 | delete_string (tos); |
850 | *tos = out; |
851 | pc++; |
852 | |
853 | } |
854 | |
855 | /* A command is all upper case,and alone on a line. */ |
856 | |
857 | static int |
858 | iscommand (ptr, idx) |
859 | string_type *ptr; |
860 | unsigned int idx; |
861 | { |
862 | unsigned int len = 0; |
863 | while (at (ptr, idx)) |
864 | { |
865 | if (isupper ((unsigned char) at (ptr, idx)) |
866 | || at (ptr, idx) == ' ' || at (ptr, idx) == '_') |
867 | { |
868 | len++; |
869 | idx++; |
870 | } |
871 | else if (at (ptr, idx) == '\n') |
872 | { |
873 | if (len > 3) |
874 | return 1; |
875 | return 0; |
876 | } |
877 | else |
878 | return 0; |
879 | } |
880 | return 0; |
881 | } |
882 | |
883 | static int |
884 | copy_past_newline (ptr, idx, dst) |
885 | string_type *ptr; |
886 | unsigned int idx; |
887 | string_type *dst; |
888 | { |
889 | int column = 0; |
890 | |
891 | while (at (ptr, idx) && at (ptr, idx) != '\n') |
892 | { |
893 | if (at (ptr, idx) == '\t') |
894 | { |
895 | /* Expand tabs. Neither makeinfo nor TeX can cope well with |
896 | them. */ |
897 | do |
898 | catchar (dst, ' '); |
899 | while (++column & 7); |
900 | } |
901 | else |
902 | { |
903 | catchar (dst, at (ptr, idx)); |
904 | column++; |
905 | } |
906 | idx++; |
907 | |
908 | } |
909 | catchar (dst, at (ptr, idx)); |
910 | idx++; |
911 | return idx; |
912 | |
913 | } |
914 | |
915 | static void |
916 | icopy_past_newline () |
917 | { |
918 | tos++; |
919 | check_range (); |
920 | init_string (tos); |
921 | idx = copy_past_newline (ptr, idx, tos); |
922 | pc++; |
923 | } |
924 | |
925 | /* indent |
926 | Take the string at the top of the stack, do some prettying. */ |
927 | |
928 | static void |
929 | kill_bogus_lines () |
930 | { |
931 | int sl; |
932 | |
933 | int idx = 0; |
934 | int c; |
935 | int dot = 0; |
936 | |
937 | string_type out; |
938 | init_string (&out); |
939 | /* Drop leading nl. */ |
940 | while (at (tos, idx) == '\n') |
941 | { |
942 | idx++; |
943 | } |
944 | c = idx; |
945 | |
946 | /* If the first char is a '.' prepend a newline so that it is |
947 | recognized properly later. */ |
948 | if (at (tos, idx) == '.') |
949 | catchar (&out, '\n'); |
950 | |
951 | /* Find the last char. */ |
952 | while (at (tos, idx)) |
953 | { |
954 | idx++; |
955 | } |
956 | |
957 | /* Find the last non white before the nl. */ |
958 | idx--; |
959 | |
960 | while (idx && isspace ((unsigned char) at (tos, idx))) |
961 | idx--; |
962 | idx++; |
963 | |
964 | /* Copy buffer upto last char, but blank lines before and after |
965 | dots don't count. */ |
966 | sl = 1; |
967 | |
968 | while (c < idx) |
969 | { |
970 | if (at (tos, c) == '\n' |
971 | && at (tos, c + 1) == '\n' |
972 | && at (tos, c + 2) == '.') |
973 | { |
974 | /* Ignore two newlines before a dot. */ |
975 | c++; |
976 | } |
977 | else if (at (tos, c) == '.' && sl) |
978 | { |
979 | /* remember that this line started with a dot. */ |
980 | dot = 2; |
981 | } |
982 | else if (at (tos, c) == '\n' |
983 | && at (tos, c + 1) == '\n' |
984 | && dot) |
985 | { |
986 | c++; |
987 | /* Ignore two newlines when last line was dot. */ |
988 | } |
989 | |
990 | catchar (&out, at (tos, c)); |
991 | if (at (tos, c) == '\n') |
992 | { |
993 | sl = 1; |
994 | |
995 | if (dot == 2) |
996 | dot = 1; |
997 | else |
998 | dot = 0; |
999 | } |
1000 | else |
1001 | sl = 0; |
1002 | |
1003 | c++; |
1004 | |
1005 | } |
1006 | |
1007 | /* Append nl. */ |
1008 | catchar (&out, '\n'); |
1009 | pc++; |
1010 | delete_string (tos); |
1011 | *tos = out; |
1012 | |
1013 | } |
1014 | |
1015 | static void |
1016 | indent () |
1017 | { |
1018 | string_type out; |
1019 | int tab = 0; |
1020 | int idx = 0; |
1021 | int ol = 0; |
1022 | init_string (&out); |
1023 | while (at (tos, idx)) |
1024 | { |
1025 | switch (at (tos, idx)) |
1026 | { |
1027 | case '\n': |
1028 | cattext (&out, "\n"); |
1029 | idx++; |
1030 | if (tab && at (tos, idx)) |
1031 | { |
1032 | cattext (&out, " "); |
1033 | } |
1034 | ol = 0; |
1035 | break; |
1036 | case '(': |
1037 | tab++; |
1038 | if (ol == 0) |
1039 | cattext (&out, " "); |
1040 | idx++; |
1041 | cattext (&out, "("); |
1042 | ol = 1; |
1043 | break; |
1044 | case ')': |
1045 | tab--; |
1046 | cattext (&out, ")"); |
1047 | idx++; |
1048 | ol = 1; |
1049 | |
1050 | break; |
1051 | default: |
1052 | catchar (&out, at (tos, idx)); |
1053 | ol = 1; |
1054 | |
1055 | idx++; |
1056 | break; |
1057 | } |
1058 | } |
1059 | |
1060 | pc++; |
1061 | delete_string (tos); |
1062 | *tos = out; |
1063 | |
1064 | } |
1065 | |
1066 | static void |
1067 | get_stuff_in_command () |
1068 | { |
1069 | tos++; |
1070 | check_range (); |
1071 | init_string (tos); |
1072 | |
1073 | while (at (ptr, idx)) |
1074 | { |
1075 | if (iscommand (ptr, idx)) |
1076 | break; |
1077 | idx = copy_past_newline (ptr, idx, tos); |
1078 | } |
1079 | pc++; |
1080 | } |
1081 | |
1082 | static void |
1083 | swap () |
1084 | { |
1085 | string_type t; |
1086 | |
1087 | t = tos[0]; |
1088 | tos[0] = tos[-1]; |
1089 | tos[-1] = t; |
1090 | pc++; |
1091 | } |
1092 | |
1093 | static void |
1094 | other_dup () |
1095 | { |
1096 | tos++; |
1097 | check_range (); |
1098 | init_string (tos); |
1099 | catstr (tos, tos - 1); |
1100 | pc++; |
1101 | } |
1102 | |
1103 | static void |
1104 | drop () |
1105 | { |
1106 | tos--; |
1107 | check_range (); |
1108 | pc++; |
1109 | } |
1110 | |
1111 | static void |
1112 | idrop () |
1113 | { |
1114 | isp--; |
1115 | icheck_range (); |
1116 | pc++; |
1117 | } |
1118 | |
1119 | static void |
1120 | icatstr () |
1121 | { |
1122 | tos--; |
1123 | check_range (); |
1124 | catstr (tos, tos + 1); |
1125 | delete_string (tos + 1); |
1126 | pc++; |
1127 | } |
1128 | |
1129 | static void |
1130 | skip_past_newline () |
1131 | { |
1132 | while (at (ptr, idx) |
1133 | && at (ptr, idx) != '\n') |
1134 | idx++; |
1135 | idx++; |
1136 | pc++; |
1137 | } |
1138 | |
1139 | static void |
1140 | internalmode () |
1141 | { |
1142 | internal_mode = *(isp); |
1143 | isp--; |
1144 | icheck_range (); |
1145 | pc++; |
1146 | } |
1147 | |
1148 | static void |
1149 | maybecatstr () |
1150 | { |
1151 | if (internal_wanted == internal_mode) |
1152 | { |
1153 | catstr (tos - 1, tos); |
1154 | } |
1155 | delete_string (tos); |
1156 | tos--; |
1157 | check_range (); |
1158 | pc++; |
1159 | } |
1160 | |
1161 | char * |
1162 | nextword (string, word) |
1163 | char *string; |
1164 | char **word; |
1165 | { |
1166 | char *word_start; |
1167 | int idx; |
1168 | char *dst; |
1169 | char *src; |
1170 | |
1171 | int length = 0; |
1172 | |
1173 | while (isspace ((unsigned char) *string) || *string == '-') |
1174 | { |
1175 | if (*string == '-') |
1176 | { |
1177 | while (*string && *string != '\n') |
1178 | string++; |
1179 | |
1180 | } |
1181 | else |
1182 | { |
1183 | string++; |
1184 | } |
1185 | } |
1186 | if (!*string) |
1187 | return 0; |
1188 | |
1189 | word_start = string; |
1190 | if (*string == '"') |
1191 | { |
1192 | do |
1193 | { |
1194 | string++; |
1195 | length++; |
1196 | if (*string == '\\') |
1197 | { |
1198 | string += 2; |
1199 | length += 2; |
1200 | } |
1201 | } |
1202 | while (*string != '"'); |
1203 | } |
1204 | else |
1205 | { |
1206 | while (!isspace ((unsigned char) *string)) |
1207 | { |
1208 | string++; |
1209 | length++; |
1210 | |
1211 | } |
1212 | } |
1213 | |
1214 | *word = malloc (length + 1); |
1215 | |
1216 | dst = *word; |
1217 | src = word_start; |
1218 | |
1219 | for (idx = 0; idx < length; idx++) |
1220 | { |
1221 | if (src[idx] == '\\') |
1222 | switch (src[idx + 1]) |
1223 | { |
1224 | case 'n': |
1225 | *dst++ = '\n'; |
1226 | idx++; |
1227 | break; |
1228 | case '"': |
1229 | case '\\': |
1230 | *dst++ = src[idx + 1]; |
1231 | idx++; |
1232 | break; |
1233 | default: |
1234 | *dst++ = '\\'; |
1235 | break; |
1236 | } |
1237 | else |
1238 | *dst++ = src[idx]; |
1239 | } |
1240 | *dst++ = 0; |
1241 | |
1242 | if (*string) |
1243 | return string + 1; |
1244 | else |
1245 | return 0; |
1246 | } |
1247 | |
1248 | dict_type *root; |
1249 | |
1250 | dict_type * |
1251 | lookup_word (word) |
1252 | char *word; |
1253 | { |
1254 | dict_type *ptr = root; |
1255 | while (ptr) |
1256 | { |
1257 | if (strcmp (ptr->word, word) == 0) |
1258 | return ptr; |
1259 | ptr = ptr->next; |
1260 | } |
1261 | if (warning) |
1262 | fprintf (stderr(&__sF[2]), "Can't find %s\n", word); |
1263 | return 0; |
1264 | } |
1265 | |
1266 | static void |
1267 | perform () |
1268 | { |
1269 | tos = stack; |
1270 | |
1271 | while (at (ptr, idx)) |
1272 | { |
1273 | /* It's worth looking through the command list. */ |
1274 | if (iscommand (ptr, idx)) |
1275 | { |
1276 | char *next; |
1277 | dict_type *word; |
1278 | |
1279 | (void) nextword (addr (ptr, idx), &next); |
1280 | |
1281 | word = lookup_word (next); |
1282 | |
1283 | if (word) |
1284 | { |
1285 | exec (word); |
1286 | } |
1287 | else |
1288 | { |
1289 | if (warning) |
1290 | fprintf (stderr(&__sF[2]), "warning, %s is not recognised\n", next); |
1291 | skip_past_newline (); |
1292 | } |
1293 | |
1294 | } |
1295 | else |
1296 | skip_past_newline (); |
1297 | } |
1298 | } |
1299 | |
1300 | dict_type * |
1301 | newentry (word) |
1302 | char *word; |
1303 | { |
1304 | dict_type *new = (dict_type *) malloc (sizeof (dict_type)); |
1305 | new->word = word; |
1306 | new->next = root; |
1307 | root = new; |
1308 | new->code = (stinst_type *) malloc (sizeof (stinst_type)); |
1309 | new->code_length = 1; |
1310 | new->code_end = 0; |
1311 | return new; |
1312 | } |
1313 | |
1314 | unsigned int |
1315 | add_to_definition (entry, word) |
1316 | dict_type *entry; |
1317 | stinst_type word; |
1318 | { |
1319 | if (entry->code_end == entry->code_length) |
1320 | { |
1321 | entry->code_length += 2; |
1322 | entry->code = |
1323 | (stinst_type *) realloc ((char *) (entry->code), |
Result of 'realloc' is converted to a pointer of type 'stinst_type', which is incompatible with sizeof operand type 'word_type' | |
1324 | entry->code_length * sizeof (word_type)); |
1325 | } |
1326 | entry->code[entry->code_end] = word; |
1327 | |
1328 | return entry->code_end++; |
1329 | } |
1330 | |
1331 | void |
1332 | add_intrinsic (name, func) |
1333 | char *name; |
1334 | void (*func) (); |
1335 | { |
1336 | dict_type *new = newentry (name); |
1337 | add_to_definition (new, func); |
1338 | add_to_definition (new, 0); |
1339 | } |
1340 | |
1341 | void |
1342 | add_var (name) |
1343 | char *name; |
1344 | { |
1345 | dict_type *new = newentry (name); |
1346 | add_to_definition (new, push_number); |
1347 | add_to_definition (new, (stinst_type) (&(new->var))); |
1348 | add_to_definition (new, 0); |
1349 | } |
1350 | |
1351 | void |
1352 | compile (string) |
1353 | char *string; |
1354 | { |
1355 | /* Add words to the dictionary. */ |
1356 | char *word; |
1357 | string = nextword (string, &word); |
1358 | while (string && *string && word[0]) |
1359 | { |
1360 | if (strcmp (word, "var") == 0) |
1361 | { |
1362 | string = nextword (string, &word); |
1363 | |
1364 | add_var (word); |
1365 | string = nextword (string, &word); |
1366 | } |
1367 | else if (word[0] == ':') |
1368 | { |
1369 | dict_type *ptr; |
1370 | /* Compile a word and add to dictionary. */ |
1371 | string = nextword (string, &word); |
1372 | |
1373 | ptr = newentry (word); |
1374 | string = nextword (string, &word); |
1375 | while (word[0] != ';') |
1376 | { |
1377 | switch (word[0]) |
1378 | { |
1379 | case '"': |
1380 | /* got a string, embed magic push string |
1381 | function */ |
1382 | add_to_definition (ptr, push_text); |
1383 | add_to_definition (ptr, (stinst_type) (word + 1)); |
1384 | break; |
1385 | case '0': |
1386 | case '1': |
1387 | case '2': |
1388 | case '3': |
1389 | case '4': |
1390 | case '5': |
1391 | case '6': |
1392 | case '7': |
1393 | case '8': |
1394 | case '9': |
1395 | /* Got a number, embedd the magic push number |
1396 | function */ |
1397 | add_to_definition (ptr, push_number); |
1398 | add_to_definition (ptr, (stinst_type) atol (word)); |
1399 | break; |
1400 | default: |
1401 | add_to_definition (ptr, call); |
1402 | add_to_definition (ptr, (stinst_type) lookup_word (word)); |
1403 | } |
1404 | |
1405 | string = nextword (string, &word); |
1406 | } |
1407 | add_to_definition (ptr, 0); |
1408 | string = nextword (string, &word); |
1409 | } |
1410 | else |
1411 | { |
1412 | fprintf (stderr(&__sF[2]), "syntax error at %s\n", string - 1); |
1413 | } |
1414 | } |
1415 | } |
1416 | |
1417 | static void |
1418 | bang () |
1419 | { |
1420 | *(long *) ((isp[0])) = isp[-1]; |
1421 | isp -= 2; |
1422 | icheck_range (); |
1423 | pc++; |
1424 | } |
1425 | |
1426 | static void |
1427 | atsign () |
1428 | { |
1429 | isp[0] = *(long *) (isp[0]); |
1430 | pc++; |
1431 | } |
1432 | |
1433 | static void |
1434 | hello () |
1435 | { |
1436 | printf ("hello\n"); |
1437 | pc++; |
1438 | } |
1439 | |
1440 | static void |
1441 | stdout_ () |
1442 | { |
1443 | isp++; |
1444 | icheck_range (); |
1445 | *isp = 1; |
1446 | pc++; |
1447 | } |
1448 | |
1449 | static void |
1450 | stderr_ () |
1451 | { |
1452 | isp++; |
1453 | icheck_range (); |
1454 | *isp = 2; |
1455 | pc++; |
1456 | } |
1457 | |
1458 | static void |
1459 | print () |
1460 | { |
1461 | if (*isp == 1) |
1462 | write_buffer (tos, stdout(&__sF[1])); |
1463 | else if (*isp == 2) |
1464 | write_buffer (tos, stderr(&__sF[2])); |
1465 | else |
1466 | fprintf (stderr(&__sF[2]), "print: illegal print destination `%ld'\n", *isp); |
1467 | isp--; |
1468 | tos--; |
1469 | icheck_range (); |
1470 | check_range (); |
1471 | pc++; |
1472 | } |
1473 | |
1474 | static void |
1475 | read_in (str, file) |
1476 | string_type *str; |
1477 | FILE *file; |
1478 | { |
1479 | char buff[10000]; |
1480 | unsigned int r; |
1481 | do |
1482 | { |
1483 | r = fread (buff, 1, sizeof (buff), file); |
1484 | catbuf (str, buff, r); |
1485 | } |
1486 | while (r); |
1487 | buff[0] = 0; |
1488 | |
1489 | catbuf (str, buff, 1); |
1490 | } |
1491 | |
1492 | static void |
1493 | usage () |
1494 | { |
1495 | fprintf (stderr(&__sF[2]), "usage: -[d|i|g] <file >file\n"); |
1496 | exit (33); |
1497 | } |
1498 | |
1499 | /* There is no reliable way to declare exit. Sometimes it returns |
1500 | int, and sometimes it returns void. Sometimes it changes between |
1501 | OS releases. Trying to get it declared correctly in the hosts file |
1502 | is a pointless waste of time. */ |
1503 | |
1504 | static void |
1505 | chew_exit () |
1506 | { |
1507 | exit (0); |
1508 | } |
1509 | |
1510 | int |
1511 | main (ac, av) |
1512 | int ac; |
1513 | char *av[]; |
1514 | { |
1515 | unsigned int i; |
1516 | string_type buffer; |
1517 | string_type pptr; |
1518 | |
1519 | init_string (&buffer); |
1520 | init_string (&pptr); |
1521 | init_string (stack + 0); |
1522 | tos = stack + 1; |
1523 | ptr = &pptr; |
1524 | |
1525 | add_intrinsic ("push_text", push_text); |
1526 | add_intrinsic ("!", bang); |
1527 | add_intrinsic ("@", atsign); |
1528 | add_intrinsic ("hello", hello); |
1529 | add_intrinsic ("stdout", stdout_); |
1530 | add_intrinsic ("stderr", stderr_); |
1531 | add_intrinsic ("print", print); |
1532 | add_intrinsic ("skip_past_newline", skip_past_newline); |
1533 | add_intrinsic ("catstr", icatstr); |
1534 | add_intrinsic ("copy_past_newline", icopy_past_newline); |
1535 | add_intrinsic ("dup", other_dup); |
1536 | add_intrinsic ("drop", drop); |
1537 | add_intrinsic ("idrop", idrop); |
1538 | add_intrinsic ("remchar", remchar); |
1539 | add_intrinsic ("get_stuff_in_command", get_stuff_in_command); |
1540 | add_intrinsic ("do_fancy_stuff", do_fancy_stuff); |
1541 | add_intrinsic ("bulletize", bulletize); |
1542 | add_intrinsic ("courierize", courierize); |
1543 | /* If the following line gives an error, exit() is not declared in the |
1544 | ../hosts/foo.h file for this host. Fix it there, not here! */ |
1545 | /* No, don't fix it anywhere; see comment on chew_exit--Ian Taylor. */ |
1546 | add_intrinsic ("exit", chew_exit); |
1547 | add_intrinsic ("swap", swap); |
1548 | add_intrinsic ("outputdots", outputdots); |
1549 | add_intrinsic ("paramstuff", paramstuff); |
1550 | add_intrinsic ("maybecatstr", maybecatstr); |
1551 | add_intrinsic ("translatecomments", translatecomments); |
1552 | add_intrinsic ("kill_bogus_lines", kill_bogus_lines); |
1553 | add_intrinsic ("indent", indent); |
1554 | add_intrinsic ("internalmode", internalmode); |
1555 | add_intrinsic ("print_stack_level", print_stack_level); |
1556 | add_intrinsic ("strip_trailing_newlines", strip_trailing_newlines); |
1557 | |
1558 | /* Put a nl at the start. */ |
1559 | catchar (&buffer, '\n'); |
1560 | |
1561 | read_in (&buffer, stdin(&__sF[0])); |
1562 | remove_noncomments (&buffer, ptr); |
1563 | for (i = 1; i < (unsigned int) ac; i++) |
1564 | { |
1565 | if (av[i][0] == '-') |
1566 | { |
1567 | if (av[i][1] == 'f') |
1568 | { |
1569 | string_type b; |
1570 | FILE *f; |
1571 | init_string (&b); |
1572 | |
1573 | f = fopen (av[i + 1], "r"); |
1574 | if (!f) |
1575 | { |
1576 | fprintf (stderr(&__sF[2]), "Can't open the input file %s\n", |
1577 | av[i + 1]); |
1578 | return 33; |
1579 | } |
1580 | |
1581 | read_in (&b, f); |
1582 | compile (b.ptr); |
1583 | perform (); |
1584 | } |
1585 | else if (av[i][1] == 'i') |
1586 | { |
1587 | internal_wanted = 1; |
1588 | } |
1589 | else if (av[i][1] == 'w') |
1590 | { |
1591 | warning = 1; |
1592 | } |
1593 | else |
1594 | usage (); |
1595 | } |
1596 | } |
1597 | write_buffer (stack + 0, stdout(&__sF[1])); |
1598 | if (tos != stack) |
1599 | { |
1600 | fprintf (stderr(&__sF[2]), "finishing with current stack level %d\n", |
1601 | tos - stack); |
1602 | return 1; |
1603 | } |
1604 | return 0; |
1605 | } |