Commit | Line | Data |
---|---|---|
fea17916 | 1 | /* macro.c - macro support for gas |
89658e52 | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
29f8404c | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | Written by Steve and Judy Chamberlain of Cygnus Support, | |
6 | sac@cygnus.com | |
7 | ||
8 | This file is part of GAS, the GNU Assembler. | |
9 | ||
10 | GAS is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2, or (at your option) | |
13 | any later version. | |
14 | ||
15 | GAS is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with GAS; see the file COPYING. If not, write to the Free | |
22 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
29f8404c | 23 | 02111-1307, USA. */ |
252b5132 RH |
24 | |
25 | #include "config.h" | |
26 | ||
fa6e9318 | 27 | #ifndef __GNUC__ |
252b5132 RH |
28 | # if HAVE_ALLOCA_H |
29 | # include <alloca.h> | |
30 | # else | |
31 | # ifdef _AIX | |
fa6e9318 AM |
32 | /* Indented so that pre-ansi C compilers will ignore it, rather than |
33 | choke on it. Some versions of AIX require this to be the first | |
34 | thing in the file. */ | |
252b5132 RH |
35 | #pragma alloca |
36 | # else | |
37 | # ifndef alloca /* predefined by HP cc +Olibcalls */ | |
38 | # if !defined (__STDC__) && !defined (__hpux) | |
39 | extern char *alloca (); | |
40 | # else | |
41 | extern void *alloca (); | |
42 | # endif /* __STDC__, __hpux */ | |
43 | # endif /* alloca */ | |
44 | # endif /* _AIX */ | |
45 | # endif /* HAVE_ALLOCA_H */ | |
fa6e9318 | 46 | #endif /* __GNUC__ */ |
252b5132 RH |
47 | |
48 | #include <stdio.h> | |
49 | #ifdef HAVE_STRING_H | |
50 | #include <string.h> | |
51 | #else | |
52 | #include <strings.h> | |
53 | #endif | |
252b5132 RH |
54 | #ifdef HAVE_STDLIB_H |
55 | #include <stdlib.h> | |
56 | #endif | |
89658e52 | 57 | #include "as.h" |
252b5132 | 58 | #include "libiberty.h" |
3882b010 | 59 | #include "safe-ctype.h" |
252b5132 RH |
60 | #include "sb.h" |
61 | #include "hash.h" | |
62 | #include "macro.h" | |
63 | ||
64 | #include "asintl.h" | |
65 | ||
66 | /* The routines in this file handle macro definition and expansion. | |
fea17916 | 67 | They are called by gas. */ |
252b5132 | 68 | |
252b5132 RH |
69 | /* Internal functions. */ |
70 | ||
254d758c KH |
71 | static int get_token (int, sb *, sb *); |
72 | static int getstring (int, sb *, sb *); | |
73 | static int get_any_string (int, sb *, sb *, int, int); | |
74 | static int do_formals (macro_entry *, int, sb *); | |
75 | static int get_apost_token (int, sb *, sb *, int); | |
76 | static int sub_actual (int, sb *, sb *, struct hash_control *, int, sb *, int); | |
252b5132 | 77 | static const char *macro_expand_body |
254d758c KH |
78 | (sb *, sb *, formal_entry *, struct hash_control *, int); |
79 | static const char *macro_expand (int, sb *, macro_entry *, sb *); | |
252b5132 RH |
80 | |
81 | #define ISWHITE(x) ((x) == ' ' || (x) == '\t') | |
82 | ||
83 | #define ISSEP(x) \ | |
84 | ((x) == ' ' || (x) == '\t' || (x) == ',' || (x) == '"' || (x) == ';' \ | |
85 | || (x) == ')' || (x) == '(' \ | |
86 | || ((macro_alternate || macro_mri) && ((x) == '<' || (x) == '>'))) | |
87 | ||
88 | #define ISBASE(x) \ | |
89 | ((x) == 'b' || (x) == 'B' \ | |
90 | || (x) == 'q' || (x) == 'Q' \ | |
91 | || (x) == 'h' || (x) == 'H' \ | |
92 | || (x) == 'd' || (x) == 'D') | |
93 | ||
94 | /* The macro hash table. */ | |
95 | ||
1c53c80d | 96 | struct hash_control *macro_hash; |
252b5132 RH |
97 | |
98 | /* Whether any macros have been defined. */ | |
99 | ||
100 | int macro_defined; | |
101 | ||
fea17916 | 102 | /* Whether we are in alternate syntax mode. */ |
252b5132 RH |
103 | |
104 | static int macro_alternate; | |
105 | ||
106 | /* Whether we are in MRI mode. */ | |
107 | ||
108 | static int macro_mri; | |
109 | ||
110 | /* Whether we should strip '@' characters. */ | |
111 | ||
112 | static int macro_strip_at; | |
113 | ||
114 | /* Function to use to parse an expression. */ | |
115 | ||
254d758c | 116 | static int (*macro_expr) (const char *, int, sb *, int *); |
252b5132 RH |
117 | |
118 | /* Number of macro expansions that have been done. */ | |
119 | ||
120 | static int macro_number; | |
121 | ||
122 | /* Initialize macro processing. */ | |
123 | ||
124 | void | |
254d758c KH |
125 | macro_init (int alternate, int mri, int strip_at, |
126 | int (*expr) (const char *, int, sb *, int *)) | |
252b5132 RH |
127 | { |
128 | macro_hash = hash_new (); | |
129 | macro_defined = 0; | |
130 | macro_alternate = alternate; | |
131 | macro_mri = mri; | |
132 | macro_strip_at = strip_at; | |
133 | macro_expr = expr; | |
134 | } | |
135 | ||
caa32fe5 NC |
136 | /* Switch in and out of alternate mode on the fly. */ |
137 | ||
138 | void | |
2766e5e4 | 139 | macro_set_alternate (int alternate) |
caa32fe5 NC |
140 | { |
141 | macro_alternate = alternate; | |
142 | } | |
143 | ||
252b5132 RH |
144 | /* Switch in and out of MRI mode on the fly. */ |
145 | ||
146 | void | |
254d758c | 147 | macro_mri_mode (int mri) |
252b5132 RH |
148 | { |
149 | macro_mri = mri; | |
150 | } | |
151 | ||
152 | /* Read input lines till we get to a TO string. | |
153 | Increase nesting depth if we get a FROM string. | |
154 | Put the results into sb at PTR. | |
ca3bc58f | 155 | FROM may be NULL (or will be ignored) if TO is "ENDR". |
252b5132 RH |
156 | Add a new input line to an sb using GET_LINE. |
157 | Return 1 on success, 0 on unexpected EOF. */ | |
158 | ||
159 | int | |
254d758c KH |
160 | buffer_and_nest (const char *from, const char *to, sb *ptr, |
161 | int (*get_line) (sb *)) | |
252b5132 | 162 | { |
ca3bc58f | 163 | int from_len; |
252b5132 RH |
164 | int to_len = strlen (to); |
165 | int depth = 1; | |
166 | int line_start = ptr->len; | |
167 | ||
168 | int more = get_line (ptr); | |
169 | ||
ca3bc58f JB |
170 | if (to_len == 4 && strcasecmp(to, "ENDR") == 0) |
171 | { | |
172 | from = NULL; | |
173 | from_len = 0; | |
174 | } | |
175 | else | |
176 | from_len = strlen (from); | |
177 | ||
252b5132 RH |
178 | while (more) |
179 | { | |
29f8404c | 180 | /* Try and find the first pseudo op on the line. */ |
252b5132 RH |
181 | int i = line_start; |
182 | ||
ca3bc58f | 183 | if (! NO_PSEUDO_DOT && ! flag_m68k_mri) |
252b5132 RH |
184 | { |
185 | /* With normal syntax we can suck what we want till we get | |
186 | to the dot. With the alternate, labels have to start in | |
ca3bc58f | 187 | the first column, since we can't tell what's a label and |
29f8404c | 188 | whats a pseudoop. */ |
252b5132 | 189 | |
29f8404c | 190 | /* Skip leading whitespace. */ |
252b5132 RH |
191 | while (i < ptr->len && ISWHITE (ptr->ptr[i])) |
192 | i++; | |
193 | ||
29f8404c | 194 | /* Skip over a label. */ |
252b5132 | 195 | while (i < ptr->len |
3882b010 | 196 | && (ISALNUM (ptr->ptr[i]) |
252b5132 RH |
197 | || ptr->ptr[i] == '_' |
198 | || ptr->ptr[i] == '$')) | |
199 | i++; | |
200 | ||
29f8404c | 201 | /* And a colon. */ |
252b5132 RH |
202 | if (i < ptr->len |
203 | && ptr->ptr[i] == ':') | |
204 | i++; | |
205 | ||
206 | } | |
29f8404c | 207 | /* Skip trailing whitespace. */ |
252b5132 RH |
208 | while (i < ptr->len && ISWHITE (ptr->ptr[i])) |
209 | i++; | |
210 | ||
211 | if (i < ptr->len && (ptr->ptr[i] == '.' | |
ca3bc58f | 212 | || NO_PSEUDO_DOT |
252b5132 RH |
213 | || macro_mri)) |
214 | { | |
ca3bc58f | 215 | if (! flag_m68k_mri && ptr->ptr[i] == '.') |
29f8404c | 216 | i++; |
ca3bc58f JB |
217 | if (from == NULL |
218 | && strncasecmp (ptr->ptr + i, "IRPC", from_len = 4) != 0 | |
219 | && strncasecmp (ptr->ptr + i, "IRP", from_len = 3) != 0 | |
220 | && strncasecmp (ptr->ptr + i, "IREPC", from_len = 5) != 0 | |
221 | && strncasecmp (ptr->ptr + i, "IREP", from_len = 4) != 0 | |
222 | && strncasecmp (ptr->ptr + i, "REPT", from_len = 4) != 0 | |
223 | && strncasecmp (ptr->ptr + i, "REP", from_len = 3) != 0) | |
224 | from_len = 0; | |
225 | if ((from != NULL | |
226 | ? strncasecmp (ptr->ptr + i, from, from_len) == 0 | |
227 | : from_len > 0) | |
29f8404c | 228 | && (ptr->len == (i + from_len) |
3882b010 | 229 | || ! ISALNUM (ptr->ptr[i + from_len]))) |
252b5132 | 230 | depth++; |
c1eae114 | 231 | if (strncasecmp (ptr->ptr + i, to, to_len) == 0 |
29f8404c | 232 | && (ptr->len == (i + to_len) |
3882b010 | 233 | || ! ISALNUM (ptr->ptr[i + to_len]))) |
252b5132 RH |
234 | { |
235 | depth--; | |
236 | if (depth == 0) | |
237 | { | |
29f8404c | 238 | /* Reset the string to not include the ending rune. */ |
252b5132 RH |
239 | ptr->len = line_start; |
240 | break; | |
241 | } | |
242 | } | |
243 | } | |
244 | ||
0822d075 NC |
245 | /* Add the original end-of-line char to the end and keep running. */ |
246 | sb_add_char (ptr, more); | |
252b5132 RH |
247 | line_start = ptr->len; |
248 | more = get_line (ptr); | |
249 | } | |
250 | ||
251 | /* Return 1 on success, 0 on unexpected EOF. */ | |
252 | return depth == 0; | |
253 | } | |
254 | ||
255 | /* Pick up a token. */ | |
256 | ||
257 | static int | |
254d758c | 258 | get_token (int idx, sb *in, sb *name) |
252b5132 RH |
259 | { |
260 | if (idx < in->len | |
3882b010 | 261 | && (ISALPHA (in->ptr[idx]) |
252b5132 RH |
262 | || in->ptr[idx] == '_' |
263 | || in->ptr[idx] == '$')) | |
264 | { | |
265 | sb_add_char (name, in->ptr[idx++]); | |
266 | while (idx < in->len | |
3882b010 | 267 | && (ISALNUM (in->ptr[idx]) |
252b5132 RH |
268 | || in->ptr[idx] == '_' |
269 | || in->ptr[idx] == '$')) | |
270 | { | |
271 | sb_add_char (name, in->ptr[idx++]); | |
272 | } | |
273 | } | |
29f8404c | 274 | /* Ignore trailing &. */ |
252b5132 RH |
275 | if (macro_alternate && idx < in->len && in->ptr[idx] == '&') |
276 | idx++; | |
277 | return idx; | |
278 | } | |
279 | ||
280 | /* Pick up a string. */ | |
281 | ||
282 | static int | |
254d758c | 283 | getstring (int idx, sb *in, sb *acc) |
252b5132 RH |
284 | { |
285 | idx = sb_skip_white (idx, in); | |
286 | ||
287 | while (idx < in->len | |
29f8404c | 288 | && (in->ptr[idx] == '"' |
252b5132 RH |
289 | || (in->ptr[idx] == '<' && (macro_alternate || macro_mri)) |
290 | || (in->ptr[idx] == '\'' && macro_alternate))) | |
291 | { | |
292 | if (in->ptr[idx] == '<') | |
293 | { | |
294 | int nest = 0; | |
295 | idx++; | |
296 | while ((in->ptr[idx] != '>' || nest) | |
297 | && idx < in->len) | |
298 | { | |
299 | if (in->ptr[idx] == '!') | |
300 | { | |
29f8404c | 301 | idx++; |
252b5132 RH |
302 | sb_add_char (acc, in->ptr[idx++]); |
303 | } | |
304 | else | |
305 | { | |
306 | if (in->ptr[idx] == '>') | |
307 | nest--; | |
308 | if (in->ptr[idx] == '<') | |
309 | nest++; | |
310 | sb_add_char (acc, in->ptr[idx++]); | |
311 | } | |
312 | } | |
313 | idx++; | |
314 | } | |
315 | else if (in->ptr[idx] == '"' || in->ptr[idx] == '\'') | |
316 | { | |
317 | char tchar = in->ptr[idx]; | |
c06ae4f2 | 318 | int escaped = 0; |
29f8404c | 319 | |
252b5132 | 320 | idx++; |
29f8404c | 321 | |
252b5132 RH |
322 | while (idx < in->len) |
323 | { | |
29f8404c | 324 | if (in->ptr[idx - 1] == '\\') |
c06ae4f2 UC |
325 | escaped ^= 1; |
326 | else | |
327 | escaped = 0; | |
328 | ||
252b5132 RH |
329 | if (macro_alternate && in->ptr[idx] == '!') |
330 | { | |
e972090a | 331 | idx ++; |
29f8404c | 332 | |
1994a7c7 NC |
333 | sb_add_char (acc, in->ptr[idx]); |
334 | ||
e972090a | 335 | idx ++; |
252b5132 | 336 | } |
c06ae4f2 UC |
337 | else if (escaped && in->ptr[idx] == tchar) |
338 | { | |
339 | sb_add_char (acc, tchar); | |
e972090a | 340 | idx ++; |
c06ae4f2 | 341 | } |
252b5132 RH |
342 | else |
343 | { | |
344 | if (in->ptr[idx] == tchar) | |
345 | { | |
e972090a | 346 | idx ++; |
29f8404c | 347 | |
252b5132 RH |
348 | if (idx >= in->len || in->ptr[idx] != tchar) |
349 | break; | |
350 | } | |
29f8404c | 351 | |
252b5132 | 352 | sb_add_char (acc, in->ptr[idx]); |
e972090a | 353 | idx ++; |
252b5132 RH |
354 | } |
355 | } | |
356 | } | |
357 | } | |
29f8404c | 358 | |
252b5132 RH |
359 | return idx; |
360 | } | |
361 | ||
362 | /* Fetch string from the input stream, | |
363 | rules: | |
364 | 'Bxyx<whitespace> -> return 'Bxyza | |
365 | %<char> -> return string of decimal value of x | |
366 | "<string>" -> return string | |
367 | xyx<whitespace> -> return xyz | |
368 | */ | |
369 | ||
370 | static int | |
254d758c | 371 | get_any_string (int idx, sb *in, sb *out, int expand, int pretend_quoted) |
252b5132 RH |
372 | { |
373 | sb_reset (out); | |
374 | idx = sb_skip_white (idx, in); | |
375 | ||
376 | if (idx < in->len) | |
377 | { | |
9df59bba | 378 | if (in->len > idx + 2 && in->ptr[idx + 1] == '\'' && ISBASE (in->ptr[idx])) |
252b5132 RH |
379 | { |
380 | while (!ISSEP (in->ptr[idx])) | |
381 | sb_add_char (out, in->ptr[idx++]); | |
382 | } | |
383 | else if (in->ptr[idx] == '%' | |
384 | && macro_alternate | |
385 | && expand) | |
386 | { | |
387 | int val; | |
388 | char buf[20]; | |
29f8404c | 389 | /* Turns the next expression into a string. */ |
06f030db | 390 | /* xgettext: no-c-format */ |
252b5132 RH |
391 | idx = (*macro_expr) (_("% operator needs absolute expression"), |
392 | idx + 1, | |
393 | in, | |
394 | &val); | |
d1a6c242 | 395 | sprintf (buf, "%d", val); |
252b5132 RH |
396 | sb_add_string (out, buf); |
397 | } | |
398 | else if (in->ptr[idx] == '"' | |
399 | || (in->ptr[idx] == '<' && (macro_alternate || macro_mri)) | |
400 | || (macro_alternate && in->ptr[idx] == '\'')) | |
401 | { | |
402 | if (macro_alternate | |
403 | && ! macro_strip_at | |
404 | && expand) | |
405 | { | |
29f8404c KH |
406 | /* Keep the quotes. */ |
407 | sb_add_char (out, '\"'); | |
252b5132 RH |
408 | |
409 | idx = getstring (idx, in, out); | |
29f8404c | 410 | sb_add_char (out, '\"'); |
252b5132 RH |
411 | } |
412 | else | |
413 | { | |
414 | idx = getstring (idx, in, out); | |
415 | } | |
416 | } | |
29f8404c | 417 | else |
252b5132 | 418 | { |
29f8404c | 419 | while (idx < in->len |
252b5132 RH |
420 | && (in->ptr[idx] == '"' |
421 | || in->ptr[idx] == '\'' | |
29f8404c | 422 | || pretend_quoted |
252b5132 RH |
423 | || (in->ptr[idx] != ' ' |
424 | && in->ptr[idx] != '\t' | |
425 | && in->ptr[idx] != ',' | |
426 | && (in->ptr[idx] != '<' | |
427 | || (! macro_alternate && ! macro_mri))))) | |
428 | { | |
29f8404c | 429 | if (in->ptr[idx] == '"' |
252b5132 RH |
430 | || in->ptr[idx] == '\'') |
431 | { | |
432 | char tchar = in->ptr[idx]; | |
433 | sb_add_char (out, in->ptr[idx++]); | |
434 | while (idx < in->len | |
435 | && in->ptr[idx] != tchar) | |
29f8404c | 436 | sb_add_char (out, in->ptr[idx++]); |
252b5132 | 437 | if (idx == in->len) |
29f8404c | 438 | return idx; |
252b5132 RH |
439 | } |
440 | sb_add_char (out, in->ptr[idx++]); | |
441 | } | |
442 | } | |
443 | } | |
444 | ||
445 | return idx; | |
446 | } | |
447 | ||
448 | /* Pick up the formal parameters of a macro definition. */ | |
449 | ||
450 | static int | |
254d758c | 451 | do_formals (macro_entry *macro, int idx, sb *in) |
252b5132 RH |
452 | { |
453 | formal_entry **p = ¯o->formals; | |
454 | ||
455 | macro->formal_count = 0; | |
456 | macro->formal_hash = hash_new (); | |
057f53c1 | 457 | idx = sb_skip_white (idx, in); |
252b5132 RH |
458 | while (idx < in->len) |
459 | { | |
460 | formal_entry *formal; | |
057f53c1 | 461 | int cidx; |
252b5132 RH |
462 | |
463 | formal = (formal_entry *) xmalloc (sizeof (formal_entry)); | |
464 | ||
465 | sb_new (&formal->name); | |
466 | sb_new (&formal->def); | |
467 | sb_new (&formal->actual); | |
468 | ||
252b5132 RH |
469 | idx = get_token (idx, in, &formal->name); |
470 | if (formal->name.len == 0) | |
057f53c1 JB |
471 | { |
472 | if (macro->formal_count) | |
473 | --idx; | |
474 | break; | |
475 | } | |
252b5132 | 476 | idx = sb_skip_white (idx, in); |
057f53c1 JB |
477 | /* This is a formal. */ |
478 | if (idx < in->len && in->ptr[idx] == '=') | |
252b5132 | 479 | { |
057f53c1 JB |
480 | /* Got a default. */ |
481 | idx = get_any_string (idx + 1, in, &formal->def, 1, 0); | |
482 | idx = sb_skip_white (idx, in); | |
252b5132 RH |
483 | } |
484 | ||
29f8404c | 485 | /* Add to macro's hash table. */ |
252b5132 RH |
486 | hash_jam (macro->formal_hash, sb_terminate (&formal->name), formal); |
487 | ||
057f53c1 JB |
488 | formal->index = macro->formal_count++; |
489 | cidx = idx; | |
252b5132 | 490 | idx = sb_skip_comma (idx, in); |
057f53c1 JB |
491 | if (idx != cidx && idx >= in->len) |
492 | { | |
493 | idx = cidx; | |
494 | break; | |
495 | } | |
252b5132 RH |
496 | *p = formal; |
497 | p = &formal->next; | |
498 | *p = NULL; | |
499 | } | |
500 | ||
501 | if (macro_mri) | |
502 | { | |
503 | formal_entry *formal; | |
504 | const char *name; | |
505 | ||
506 | /* Add a special NARG formal, which macro_expand will set to the | |
507 | number of arguments. */ | |
508 | formal = (formal_entry *) xmalloc (sizeof (formal_entry)); | |
509 | ||
510 | sb_new (&formal->name); | |
511 | sb_new (&formal->def); | |
512 | sb_new (&formal->actual); | |
513 | ||
514 | /* The same MRI assemblers which treat '@' characters also use | |
515 | the name $NARG. At least until we find an exception. */ | |
516 | if (macro_strip_at) | |
517 | name = "$NARG"; | |
518 | else | |
519 | name = "NARG"; | |
520 | ||
521 | sb_add_string (&formal->name, name); | |
522 | ||
29f8404c | 523 | /* Add to macro's hash table. */ |
252b5132 RH |
524 | hash_jam (macro->formal_hash, name, formal); |
525 | ||
526 | formal->index = NARG_INDEX; | |
527 | *p = formal; | |
528 | formal->next = NULL; | |
529 | } | |
530 | ||
531 | return idx; | |
532 | } | |
533 | ||
534 | /* Define a new macro. Returns NULL on success, otherwise returns an | |
535 | error message. If NAMEP is not NULL, *NAMEP is set to the name of | |
536 | the macro which was defined. */ | |
537 | ||
538 | const char * | |
254d758c KH |
539 | define_macro (int idx, sb *in, sb *label, |
540 | int (*get_line) (sb *), const char **namep) | |
252b5132 RH |
541 | { |
542 | macro_entry *macro; | |
543 | sb name; | |
544 | const char *namestr; | |
545 | ||
546 | macro = (macro_entry *) xmalloc (sizeof (macro_entry)); | |
547 | sb_new (¯o->sub); | |
548 | sb_new (&name); | |
549 | ||
550 | macro->formal_count = 0; | |
551 | macro->formals = 0; | |
552 | ||
553 | idx = sb_skip_white (idx, in); | |
554 | if (! buffer_and_nest ("MACRO", "ENDM", ¯o->sub, get_line)) | |
555 | return _("unexpected end of file in macro definition"); | |
556 | if (label != NULL && label->len != 0) | |
557 | { | |
558 | sb_add_sb (&name, label); | |
559 | if (idx < in->len && in->ptr[idx] == '(') | |
560 | { | |
29f8404c | 561 | /* It's the label: MACRO (formals,...) sort */ |
252b5132 | 562 | idx = do_formals (macro, idx + 1, in); |
057f53c1 | 563 | if (idx >= in->len || in->ptr[idx] != ')') |
252b5132 | 564 | return _("missing ) after formals"); |
057f53c1 | 565 | idx = sb_skip_white (idx + 1, in); |
252b5132 RH |
566 | } |
567 | else | |
568 | { | |
29f8404c | 569 | /* It's the label: MACRO formals,... sort */ |
252b5132 RH |
570 | idx = do_formals (macro, idx, in); |
571 | } | |
572 | } | |
573 | else | |
574 | { | |
057f53c1 JB |
575 | int cidx; |
576 | ||
252b5132 | 577 | idx = get_token (idx, in, &name); |
057f53c1 JB |
578 | if (name.len == 0) |
579 | return _("Missing macro name"); | |
580 | cidx = sb_skip_white (idx, in); | |
581 | idx = sb_skip_comma (cidx, in); | |
582 | if (idx == cidx || idx < in->len) | |
583 | idx = do_formals (macro, idx, in); | |
584 | else | |
585 | idx = cidx; | |
252b5132 | 586 | } |
057f53c1 JB |
587 | if (idx < in->len) |
588 | return _("Bad macro parameter list"); | |
252b5132 | 589 | |
29f8404c | 590 | /* And stick it in the macro hash table. */ |
252b5132 | 591 | for (idx = 0; idx < name.len; idx++) |
3882b010 | 592 | name.ptr[idx] = TOLOWER (name.ptr[idx]); |
252b5132 | 593 | namestr = sb_terminate (&name); |
057f53c1 JB |
594 | if (hash_find (macro_hash, namestr)) |
595 | return _("Macro with this name was already defined"); | |
252b5132 RH |
596 | hash_jam (macro_hash, namestr, (PTR) macro); |
597 | ||
598 | macro_defined = 1; | |
599 | ||
600 | if (namep != NULL) | |
601 | *namep = namestr; | |
602 | ||
603 | return NULL; | |
604 | } | |
605 | ||
606 | /* Scan a token, and then skip KIND. */ | |
607 | ||
608 | static int | |
254d758c | 609 | get_apost_token (int idx, sb *in, sb *name, int kind) |
252b5132 RH |
610 | { |
611 | idx = get_token (idx, in, name); | |
612 | if (idx < in->len | |
613 | && in->ptr[idx] == kind | |
614 | && (! macro_mri || macro_strip_at) | |
615 | && (! macro_strip_at || kind == '@')) | |
616 | idx++; | |
617 | return idx; | |
618 | } | |
619 | ||
620 | /* Substitute the actual value for a formal parameter. */ | |
621 | ||
622 | static int | |
254d758c KH |
623 | sub_actual (int start, sb *in, sb *t, struct hash_control *formal_hash, |
624 | int kind, sb *out, int copyifnotthere) | |
252b5132 RH |
625 | { |
626 | int src; | |
627 | formal_entry *ptr; | |
628 | ||
629 | src = get_apost_token (start, in, t, kind); | |
630 | /* See if it's in the macro's hash table, unless this is | |
631 | macro_strip_at and kind is '@' and the token did not end in '@'. */ | |
632 | if (macro_strip_at | |
633 | && kind == '@' | |
634 | && (src == start || in->ptr[src - 1] != '@')) | |
635 | ptr = NULL; | |
636 | else | |
637 | ptr = (formal_entry *) hash_find (formal_hash, sb_terminate (t)); | |
638 | if (ptr) | |
639 | { | |
640 | if (ptr->actual.len) | |
641 | { | |
642 | sb_add_sb (out, &ptr->actual); | |
643 | } | |
644 | else | |
645 | { | |
646 | sb_add_sb (out, &ptr->def); | |
647 | } | |
648 | } | |
649 | else if (kind == '&') | |
650 | { | |
651 | /* Doing this permits people to use & in macro bodies. */ | |
652 | sb_add_char (out, '&'); | |
c1ed1235 | 653 | sb_add_sb (out, t); |
252b5132 RH |
654 | } |
655 | else if (copyifnotthere) | |
656 | { | |
657 | sb_add_sb (out, t); | |
658 | } | |
29f8404c | 659 | else |
252b5132 RH |
660 | { |
661 | sb_add_char (out, '\\'); | |
662 | sb_add_sb (out, t); | |
663 | } | |
664 | return src; | |
665 | } | |
666 | ||
667 | /* Expand the body of a macro. */ | |
668 | ||
669 | static const char * | |
254d758c KH |
670 | macro_expand_body (sb *in, sb *out, formal_entry *formals, |
671 | struct hash_control *formal_hash, int locals) | |
252b5132 RH |
672 | { |
673 | sb t; | |
674 | int src = 0; | |
675 | int inquote = 0; | |
676 | formal_entry *loclist = NULL; | |
677 | ||
678 | sb_new (&t); | |
679 | ||
680 | while (src < in->len) | |
681 | { | |
682 | if (in->ptr[src] == '&') | |
683 | { | |
684 | sb_reset (&t); | |
685 | if (macro_mri) | |
686 | { | |
687 | if (src + 1 < in->len && in->ptr[src + 1] == '&') | |
688 | src = sub_actual (src + 2, in, &t, formal_hash, '\'', out, 1); | |
689 | else | |
690 | sb_add_char (out, in->ptr[src++]); | |
691 | } | |
692 | else | |
693 | { | |
694 | /* FIXME: Why do we do this? */ | |
695 | src = sub_actual (src + 1, in, &t, formal_hash, '&', out, 0); | |
696 | } | |
697 | } | |
698 | else if (in->ptr[src] == '\\') | |
699 | { | |
700 | src++; | |
fea17916 | 701 | if (in->ptr[src] == '(') |
252b5132 | 702 | { |
29f8404c | 703 | /* Sub in till the next ')' literally. */ |
252b5132 RH |
704 | src++; |
705 | while (src < in->len && in->ptr[src] != ')') | |
706 | { | |
707 | sb_add_char (out, in->ptr[src++]); | |
708 | } | |
709 | if (in->ptr[src] == ')') | |
710 | src++; | |
711 | else | |
712 | return _("missplaced )"); | |
713 | } | |
714 | else if (in->ptr[src] == '@') | |
715 | { | |
29f8404c | 716 | /* Sub in the macro invocation number. */ |
252b5132 RH |
717 | |
718 | char buffer[10]; | |
719 | src++; | |
a2984248 | 720 | sprintf (buffer, "%d", macro_number); |
252b5132 RH |
721 | sb_add_string (out, buffer); |
722 | } | |
723 | else if (in->ptr[src] == '&') | |
724 | { | |
725 | /* This is a preprocessor variable name, we don't do them | |
29f8404c | 726 | here. */ |
252b5132 RH |
727 | sb_add_char (out, '\\'); |
728 | sb_add_char (out, '&'); | |
729 | src++; | |
730 | } | |
3882b010 | 731 | else if (macro_mri && ISALNUM (in->ptr[src])) |
252b5132 RH |
732 | { |
733 | int ind; | |
734 | formal_entry *f; | |
735 | ||
3882b010 | 736 | if (ISDIGIT (in->ptr[src])) |
252b5132 | 737 | ind = in->ptr[src] - '0'; |
3882b010 | 738 | else if (ISUPPER (in->ptr[src])) |
252b5132 RH |
739 | ind = in->ptr[src] - 'A' + 10; |
740 | else | |
741 | ind = in->ptr[src] - 'a' + 10; | |
742 | ++src; | |
743 | for (f = formals; f != NULL; f = f->next) | |
744 | { | |
745 | if (f->index == ind - 1) | |
746 | { | |
747 | if (f->actual.len != 0) | |
748 | sb_add_sb (out, &f->actual); | |
749 | else | |
750 | sb_add_sb (out, &f->def); | |
751 | break; | |
752 | } | |
753 | } | |
754 | } | |
755 | else | |
756 | { | |
757 | sb_reset (&t); | |
758 | src = sub_actual (src, in, &t, formal_hash, '\'', out, 0); | |
759 | } | |
760 | } | |
761 | else if ((macro_alternate || macro_mri) | |
3882b010 | 762 | && (ISALPHA (in->ptr[src]) |
252b5132 RH |
763 | || in->ptr[src] == '_' |
764 | || in->ptr[src] == '$') | |
765 | && (! inquote | |
766 | || ! macro_strip_at | |
767 | || (src > 0 && in->ptr[src - 1] == '@'))) | |
768 | { | |
769 | if (! locals | |
770 | || src + 5 >= in->len | |
771 | || strncasecmp (in->ptr + src, "LOCAL", 5) != 0 | |
772 | || ! ISWHITE (in->ptr[src + 5])) | |
773 | { | |
774 | sb_reset (&t); | |
775 | src = sub_actual (src, in, &t, formal_hash, | |
776 | (macro_strip_at && inquote) ? '@' : '\'', | |
777 | out, 1); | |
778 | } | |
779 | else | |
780 | { | |
781 | formal_entry *f; | |
782 | ||
783 | src = sb_skip_white (src + 5, in); | |
fea17916 | 784 | while (in->ptr[src] != '\n') |
252b5132 RH |
785 | { |
786 | static int loccnt; | |
787 | char buf[20]; | |
788 | const char *err; | |
789 | ||
790 | f = (formal_entry *) xmalloc (sizeof (formal_entry)); | |
791 | sb_new (&f->name); | |
792 | sb_new (&f->def); | |
793 | sb_new (&f->actual); | |
794 | f->index = LOCAL_INDEX; | |
795 | f->next = loclist; | |
796 | loclist = f; | |
797 | ||
798 | src = get_token (src, in, &f->name); | |
799 | ++loccnt; | |
89658e52 | 800 | sprintf (buf, IS_ELF ? ".LL%04x" : "LL%04x", loccnt); |
252b5132 RH |
801 | sb_add_string (&f->actual, buf); |
802 | ||
803 | err = hash_jam (formal_hash, sb_terminate (&f->name), f); | |
804 | if (err != NULL) | |
805 | return err; | |
806 | ||
807 | src = sb_skip_comma (src, in); | |
808 | } | |
809 | } | |
810 | } | |
252b5132 RH |
811 | else if (in->ptr[src] == '"' |
812 | || (macro_mri && in->ptr[src] == '\'')) | |
813 | { | |
814 | inquote = !inquote; | |
815 | sb_add_char (out, in->ptr[src++]); | |
816 | } | |
817 | else if (in->ptr[src] == '@' && macro_strip_at) | |
818 | { | |
819 | ++src; | |
820 | if (src < in->len | |
821 | && in->ptr[src] == '@') | |
822 | { | |
823 | sb_add_char (out, '@'); | |
824 | ++src; | |
825 | } | |
826 | } | |
827 | else if (macro_mri | |
828 | && in->ptr[src] == '=' | |
829 | && src + 1 < in->len | |
830 | && in->ptr[src + 1] == '=') | |
831 | { | |
832 | formal_entry *ptr; | |
833 | ||
834 | sb_reset (&t); | |
835 | src = get_token (src + 2, in, &t); | |
836 | ptr = (formal_entry *) hash_find (formal_hash, sb_terminate (&t)); | |
837 | if (ptr == NULL) | |
838 | { | |
839 | /* FIXME: We should really return a warning string here, | |
840 | but we can't, because the == might be in the MRI | |
841 | comment field, and, since the nature of the MRI | |
842 | comment field depends upon the exact instruction | |
843 | being used, we don't have enough information here to | |
844 | figure out whether it is or not. Instead, we leave | |
845 | the == in place, which should cause a syntax error if | |
846 | it is not in a comment. */ | |
847 | sb_add_char (out, '='); | |
848 | sb_add_char (out, '='); | |
849 | sb_add_sb (out, &t); | |
850 | } | |
851 | else | |
852 | { | |
853 | if (ptr->actual.len) | |
854 | { | |
855 | sb_add_string (out, "-1"); | |
856 | } | |
857 | else | |
858 | { | |
859 | sb_add_char (out, '0'); | |
860 | } | |
861 | } | |
862 | } | |
863 | else | |
864 | { | |
865 | sb_add_char (out, in->ptr[src++]); | |
866 | } | |
867 | } | |
868 | ||
869 | sb_kill (&t); | |
870 | ||
871 | while (loclist != NULL) | |
872 | { | |
873 | formal_entry *f; | |
874 | ||
875 | f = loclist->next; | |
1af6dcd2 ILT |
876 | /* Setting the value to NULL effectively deletes the entry. We |
877 | avoid calling hash_delete because it doesn't reclaim memory. */ | |
878 | hash_jam (formal_hash, sb_terminate (&loclist->name), NULL); | |
252b5132 RH |
879 | sb_kill (&loclist->name); |
880 | sb_kill (&loclist->def); | |
881 | sb_kill (&loclist->actual); | |
882 | free (loclist); | |
883 | loclist = f; | |
884 | } | |
885 | ||
886 | return NULL; | |
887 | } | |
888 | ||
889 | /* Assign values to the formal parameters of a macro, and expand the | |
890 | body. */ | |
891 | ||
892 | static const char * | |
254d758c | 893 | macro_expand (int idx, sb *in, macro_entry *m, sb *out) |
252b5132 RH |
894 | { |
895 | sb t; | |
896 | formal_entry *ptr; | |
897 | formal_entry *f; | |
898 | int is_positional = 0; | |
899 | int is_keyword = 0; | |
900 | int narg = 0; | |
901 | const char *err; | |
902 | ||
903 | sb_new (&t); | |
29f8404c KH |
904 | |
905 | /* Reset any old value the actuals may have. */ | |
252b5132 | 906 | for (f = m->formals; f; f = f->next) |
29f8404c | 907 | sb_reset (&f->actual); |
252b5132 RH |
908 | f = m->formals; |
909 | while (f != NULL && f->index < 0) | |
910 | f = f->next; | |
911 | ||
912 | if (macro_mri) | |
913 | { | |
914 | /* The macro may be called with an optional qualifier, which may | |
915 | be referred to in the macro body as \0. */ | |
916 | if (idx < in->len && in->ptr[idx] == '.') | |
d1a6c242 KH |
917 | { |
918 | /* The Microtec assembler ignores this if followed by a white space. | |
919 | (Macro invocation with empty extension) */ | |
920 | idx++; | |
921 | if ( idx < in->len | |
922 | && in->ptr[idx] != ' ' | |
923 | && in->ptr[idx] != '\t') | |
924 | { | |
925 | formal_entry *n; | |
926 | ||
927 | n = (formal_entry *) xmalloc (sizeof (formal_entry)); | |
928 | sb_new (&n->name); | |
929 | sb_new (&n->def); | |
930 | sb_new (&n->actual); | |
931 | n->index = QUAL_INDEX; | |
932 | ||
933 | n->next = m->formals; | |
934 | m->formals = n; | |
935 | ||
936 | idx = get_any_string (idx, in, &n->actual, 1, 0); | |
937 | } | |
938 | } | |
939 | } | |
252b5132 | 940 | |
29f8404c | 941 | /* Peel off the actuals and store them away in the hash tables' actuals. */ |
252b5132 | 942 | idx = sb_skip_white (idx, in); |
fea17916 | 943 | while (idx < in->len) |
252b5132 RH |
944 | { |
945 | int scan; | |
946 | ||
29f8404c | 947 | /* Look and see if it's a positional or keyword arg. */ |
252b5132 RH |
948 | scan = idx; |
949 | while (scan < in->len | |
950 | && !ISSEP (in->ptr[scan]) | |
951 | && !(macro_mri && in->ptr[scan] == '\'') | |
952 | && (!macro_alternate && in->ptr[scan] != '=')) | |
953 | scan++; | |
954 | if (scan < in->len && !macro_alternate && in->ptr[scan] == '=') | |
955 | { | |
956 | is_keyword = 1; | |
957 | ||
958 | /* It's OK to go from positional to keyword. */ | |
959 | ||
960 | /* This is a keyword arg, fetch the formal name and | |
29f8404c | 961 | then the actual stuff. */ |
252b5132 RH |
962 | sb_reset (&t); |
963 | idx = get_token (idx, in, &t); | |
964 | if (in->ptr[idx] != '=') | |
965 | return _("confusion in formal parameters"); | |
966 | ||
29f8404c | 967 | /* Lookup the formal in the macro's list. */ |
252b5132 RH |
968 | ptr = (formal_entry *) hash_find (m->formal_hash, sb_terminate (&t)); |
969 | if (!ptr) | |
970 | return _("macro formal argument does not exist"); | |
971 | else | |
972 | { | |
29f8404c | 973 | /* Insert this value into the right place. */ |
252b5132 RH |
974 | sb_reset (&ptr->actual); |
975 | idx = get_any_string (idx + 1, in, &ptr->actual, 0, 0); | |
976 | if (ptr->actual.len > 0) | |
977 | ++narg; | |
978 | } | |
979 | } | |
980 | else | |
981 | { | |
29f8404c | 982 | /* This is a positional arg. */ |
252b5132 RH |
983 | is_positional = 1; |
984 | if (is_keyword) | |
985 | return _("can't mix positional and keyword arguments"); | |
986 | ||
987 | if (!f) | |
988 | { | |
989 | formal_entry **pf; | |
990 | int c; | |
991 | ||
992 | if (!macro_mri) | |
993 | return _("too many positional arguments"); | |
994 | ||
995 | f = (formal_entry *) xmalloc (sizeof (formal_entry)); | |
996 | sb_new (&f->name); | |
997 | sb_new (&f->def); | |
998 | sb_new (&f->actual); | |
999 | f->next = NULL; | |
1000 | ||
1001 | c = -1; | |
1002 | for (pf = &m->formals; *pf != NULL; pf = &(*pf)->next) | |
1003 | if ((*pf)->index >= c) | |
1004 | c = (*pf)->index + 1; | |
1005 | if (c == -1) | |
1006 | c = 0; | |
1007 | *pf = f; | |
1008 | f->index = c; | |
1009 | } | |
1010 | ||
1011 | sb_reset (&f->actual); | |
1012 | idx = get_any_string (idx, in, &f->actual, 1, 0); | |
1013 | if (f->actual.len > 0) | |
1014 | ++narg; | |
1015 | do | |
1016 | { | |
1017 | f = f->next; | |
1018 | } | |
1019 | while (f != NULL && f->index < 0); | |
1020 | } | |
1021 | ||
1022 | if (! macro_mri) | |
1023 | idx = sb_skip_comma (idx, in); | |
1024 | else | |
1025 | { | |
1026 | if (in->ptr[idx] == ',') | |
1027 | ++idx; | |
1028 | if (ISWHITE (in->ptr[idx])) | |
1029 | break; | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | if (macro_mri) | |
1034 | { | |
1035 | char buffer[20]; | |
1036 | ||
1037 | sb_reset (&t); | |
1038 | sb_add_string (&t, macro_strip_at ? "$NARG" : "NARG"); | |
1039 | ptr = (formal_entry *) hash_find (m->formal_hash, sb_terminate (&t)); | |
1040 | sb_reset (&ptr->actual); | |
1041 | sprintf (buffer, "%d", narg); | |
1042 | sb_add_string (&ptr->actual, buffer); | |
1043 | } | |
1044 | ||
fea17916 | 1045 | err = macro_expand_body (&m->sub, out, m->formals, m->formal_hash, 1); |
252b5132 RH |
1046 | if (err != NULL) |
1047 | return err; | |
1048 | ||
1049 | /* Discard any unnamed formal arguments. */ | |
1050 | if (macro_mri) | |
1051 | { | |
1052 | formal_entry **pf; | |
1053 | ||
1054 | pf = &m->formals; | |
1055 | while (*pf != NULL) | |
1056 | { | |
1057 | if ((*pf)->name.len != 0) | |
1058 | pf = &(*pf)->next; | |
1059 | else | |
1060 | { | |
1061 | sb_kill (&(*pf)->name); | |
1062 | sb_kill (&(*pf)->def); | |
1063 | sb_kill (&(*pf)->actual); | |
1064 | f = (*pf)->next; | |
1065 | free (*pf); | |
1066 | *pf = f; | |
1067 | } | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | sb_kill (&t); | |
1072 | macro_number++; | |
1073 | ||
1074 | return NULL; | |
1075 | } | |
1076 | ||
1077 | /* Check for a macro. If one is found, put the expansion into | |
fea17916 | 1078 | *EXPAND. Return 1 if a macro is found, 0 otherwise. */ |
252b5132 RH |
1079 | |
1080 | int | |
254d758c KH |
1081 | check_macro (const char *line, sb *expand, |
1082 | const char **error, macro_entry **info) | |
252b5132 RH |
1083 | { |
1084 | const char *s; | |
1085 | char *copy, *cs; | |
1086 | macro_entry *macro; | |
1087 | sb line_sb; | |
1088 | ||
3882b010 | 1089 | if (! ISALPHA (*line) |
252b5132 RH |
1090 | && *line != '_' |
1091 | && *line != '$' | |
1092 | && (! macro_mri || *line != '.')) | |
1093 | return 0; | |
1094 | ||
1095 | s = line + 1; | |
3882b010 | 1096 | while (ISALNUM (*s) |
252b5132 RH |
1097 | || *s == '_' |
1098 | || *s == '$') | |
1099 | ++s; | |
1100 | ||
1101 | copy = (char *) alloca (s - line + 1); | |
1102 | memcpy (copy, line, s - line); | |
1103 | copy[s - line] = '\0'; | |
1104 | for (cs = copy; *cs != '\0'; cs++) | |
3882b010 | 1105 | *cs = TOLOWER (*cs); |
252b5132 RH |
1106 | |
1107 | macro = (macro_entry *) hash_find (macro_hash, copy); | |
1108 | ||
1109 | if (macro == NULL) | |
1110 | return 0; | |
1111 | ||
1112 | /* Wrap the line up in an sb. */ | |
1113 | sb_new (&line_sb); | |
1114 | while (*s != '\0' && *s != '\n' && *s != '\r') | |
1115 | sb_add_char (&line_sb, *s++); | |
1116 | ||
1117 | sb_new (expand); | |
fea17916 | 1118 | *error = macro_expand (0, &line_sb, macro, expand); |
252b5132 RH |
1119 | |
1120 | sb_kill (&line_sb); | |
1121 | ||
29f8404c | 1122 | /* Export the macro information if requested. */ |
9f10757c TW |
1123 | if (info) |
1124 | *info = macro; | |
1125 | ||
252b5132 RH |
1126 | return 1; |
1127 | } | |
1128 | ||
1129 | /* Delete a macro. */ | |
1130 | ||
1131 | void | |
254d758c | 1132 | delete_macro (const char *name) |
252b5132 RH |
1133 | { |
1134 | hash_delete (macro_hash, name); | |
1135 | } | |
1136 | ||
1137 | /* Handle the MRI IRP and IRPC pseudo-ops. These are handled as a | |
1138 | combined macro definition and execution. This returns NULL on | |
1139 | success, or an error message otherwise. */ | |
1140 | ||
1141 | const char * | |
254d758c | 1142 | expand_irp (int irpc, int idx, sb *in, sb *out, int (*get_line) (sb *)) |
252b5132 | 1143 | { |
252b5132 RH |
1144 | sb sub; |
1145 | formal_entry f; | |
1146 | struct hash_control *h; | |
1147 | const char *err; | |
1148 | ||
252b5132 RH |
1149 | idx = sb_skip_white (idx, in); |
1150 | ||
1151 | sb_new (&sub); | |
ca3bc58f | 1152 | if (! buffer_and_nest (NULL, "ENDR", &sub, get_line)) |
252b5132 | 1153 | return _("unexpected end of file in irp or irpc"); |
29f8404c | 1154 | |
252b5132 RH |
1155 | sb_new (&f.name); |
1156 | sb_new (&f.def); | |
1157 | sb_new (&f.actual); | |
1158 | ||
1159 | idx = get_token (idx, in, &f.name); | |
1160 | if (f.name.len == 0) | |
1161 | return _("missing model parameter"); | |
1162 | ||
1163 | h = hash_new (); | |
1164 | err = hash_jam (h, sb_terminate (&f.name), &f); | |
1165 | if (err != NULL) | |
1166 | return err; | |
1167 | ||
1168 | f.index = 1; | |
1169 | f.next = NULL; | |
1170 | ||
1171 | sb_reset (out); | |
1172 | ||
1173 | idx = sb_skip_comma (idx, in); | |
fea17916 | 1174 | if (idx >= in->len) |
252b5132 RH |
1175 | { |
1176 | /* Expand once with a null string. */ | |
fea17916 | 1177 | err = macro_expand_body (&sub, out, &f, h, 0); |
252b5132 RH |
1178 | if (err != NULL) |
1179 | return err; | |
1180 | } | |
1181 | else | |
1182 | { | |
1183 | if (irpc && in->ptr[idx] == '"') | |
1184 | ++idx; | |
fea17916 | 1185 | while (idx < in->len) |
252b5132 RH |
1186 | { |
1187 | if (!irpc) | |
1188 | idx = get_any_string (idx, in, &f.actual, 1, 0); | |
1189 | else | |
1190 | { | |
1191 | if (in->ptr[idx] == '"') | |
1192 | { | |
1193 | int nxt; | |
1194 | ||
1195 | nxt = sb_skip_white (idx + 1, in); | |
fea17916 | 1196 | if (nxt >= in->len) |
252b5132 RH |
1197 | { |
1198 | idx = nxt; | |
1199 | break; | |
1200 | } | |
1201 | } | |
1202 | sb_reset (&f.actual); | |
1203 | sb_add_char (&f.actual, in->ptr[idx]); | |
1204 | ++idx; | |
1205 | } | |
fea17916 | 1206 | err = macro_expand_body (&sub, out, &f, h, 0); |
252b5132 RH |
1207 | if (err != NULL) |
1208 | return err; | |
1209 | if (!irpc) | |
1210 | idx = sb_skip_comma (idx, in); | |
1211 | else | |
1212 | idx = sb_skip_white (idx, in); | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | hash_die (h); | |
1217 | sb_kill (&sub); | |
1218 | ||
1219 | return NULL; | |
1220 | } |