2 * Copyright 1998 Bertho A. Stultiens (BS)
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 #include "wine/port.h"
37 #include "wpp_private.h"
39 struct pp_status pp_status;
43 typedef struct pp_def_state
45 struct pp_def_state *next;
46 pp_entry_t *defines[HASHKEY];
49 static pp_def_state_t *pp_def_state;
52 static pp_if_state_t if_stack[MAXIFSTACK];
53 static int if_stack_idx = 0;
56 void pp_print_status(void) __attribute__((destructor));
57 void pp_print_status(void)
64 fprintf(stderr, "Defines statistics:\n");
65 for(i = 0; i < HASHKEY; i++)
68 for(ppp = pp_def_state->defines[i]; ppp; ppp = ppp->next)
71 if (sum) fprintf(stderr, "%4d, %3d\n", i, sum);
73 fprintf(stderr, "Total defines: %d\n", total);
77 void *pp_xmalloc(size_t size)
85 fprintf(stderr, "Virtual memory exhausted.\n");
91 void *pp_xrealloc(void *p, size_t size)
96 res = realloc(p, size);
99 fprintf(stderr, "Virtual memory exhausted.\n");
105 char *pp_xstrdup(const char *str)
115 return memcpy(s, str, len);
118 /* Don't comment on the hash, its primitive but functional... */
119 static int pphash(const char *str)
124 return sum % HASHKEY;
127 pp_entry_t *pplookup(const char *ident)
129 int idx = pphash(ident);
132 for(ppp = pp_def_state->defines[idx]; ppp; ppp = ppp->next)
134 if(!strcmp(ident, ppp->ident))
140 static void free_pp_entry( pp_entry_t *ppp, int idx )
144 if(ppp->iep == pp_includelogiclist)
146 pp_includelogiclist = ppp->iep->next;
147 if(pp_includelogiclist)
148 pp_includelogiclist->prev = NULL;
152 ppp->iep->prev->next = ppp->iep->next;
154 ppp->iep->next->prev = ppp->iep->prev;
156 free(ppp->iep->filename);
160 if(pp_def_state->defines[idx] == ppp)
162 pp_def_state->defines[idx] = ppp->next;
163 if(pp_def_state->defines[idx])
164 pp_def_state->defines[idx]->prev = NULL;
168 ppp->prev->next = ppp->next;
170 ppp->next->prev = ppp->prev;
176 /* push a new (empty) define state */
177 void pp_push_define_state(void)
179 pp_def_state_t *state = pp_xmalloc( sizeof(*state) );
181 memset( state->defines, 0, sizeof(state->defines) );
182 state->next = pp_def_state;
183 pp_def_state = state;
186 /* pop the current define state */
187 void pp_pop_define_state(void)
191 pp_def_state_t *state;
193 for (i = 0; i < HASHKEY; i++)
195 while ((ppp = pp_def_state->defines[i]) != NULL) free_pp_entry( ppp, i );
197 state = pp_def_state;
198 pp_def_state = state->next;
202 void pp_del_define(const char *name)
206 if((ppp = pplookup(name)) == NULL)
208 if(pp_status.pedantic)
209 ppy_warning("%s was not defined", name);
213 free_pp_entry( ppp, pphash(name) );
216 printf("Deleted (%s, %d) <%s>\n", pp_status.input, pp_status.line_number, name);
219 pp_entry_t *pp_add_define(char *def, char *text)
223 int idx = pphash(def);
226 if((ppp = pplookup(def)) != NULL)
228 if(pp_status.pedantic)
229 ppy_warning("Redefinition of %s\n\tPrevious definition: %s:%d", def, ppp->filename, ppp->linenumber);
232 ppp = pp_xmalloc(sizeof(pp_entry_t));
233 memset( ppp, 0, sizeof(*ppp) );
235 ppp->type = def_define;
236 ppp->subst.text = text;
237 ppp->filename = pp_xstrdup(pp_status.input ? pp_status.input : "<internal or cmdline>");
238 ppp->linenumber = pp_status.input ? pp_status.line_number : 0;
239 ppp->next = pp_def_state->defines[idx];
240 pp_def_state->defines[idx] = ppp;
242 ppp->next->prev = ppp;
245 /* Strip trailing white space from subst text */
247 while(len && strchr(" \t\r\n", text[len-1]))
251 /* Strip leading white space from subst text */
252 for(cptr = text; *cptr && strchr(" \t\r", *cptr); cptr++)
255 memmove(text, cptr, strlen(cptr)+1);
258 printf("Added define (%s, %d) <%s> to <%s>\n", pp_status.input, pp_status.line_number, ppp->ident, text ? text : "(null)");
263 pp_entry_t *pp_add_macro(char *id, marg_t *args[], int nargs, mtext_t *exp)
265 int idx = pphash(id);
268 if((ppp = pplookup(id)) != NULL)
270 if(pp_status.pedantic)
271 ppy_warning("Redefinition of %s\n\tPrevious definition: %s:%d", id, ppp->filename, ppp->linenumber);
274 ppp = pp_xmalloc(sizeof(pp_entry_t));
275 memset( ppp, 0, sizeof(*ppp) );
277 ppp->type = def_macro;
280 ppp->subst.mtext= exp;
281 ppp->filename = pp_xstrdup(pp_status.input ? pp_status.input : "<internal or cmdline>");
282 ppp->linenumber = pp_status.input ? pp_status.line_number : 0;
283 ppp->next = pp_def_state->defines[idx];
284 pp_def_state->defines[idx] = ppp;
286 ppp->next->prev = ppp;
290 fprintf(stderr, "Added macro (%s, %d) <%s(%d)> to <", pp_status.input, pp_status.line_number, ppp->ident, nargs);
291 for(; exp; exp = exp->next)
296 fprintf(stderr, " \"%s\" ", exp->subst.text);
299 fprintf(stderr, " #(%d) ", exp->subst.argidx);
302 fprintf(stderr, "##");
305 fprintf(stderr, " <%d> ", exp->subst.argidx);
309 fprintf(stderr, ">\n");
316 *-------------------------------------------------------------------------
318 *-------------------------------------------------------------------------
320 #if defined(_Windows) || defined(__MSDOS__)
321 #define INCLUDESEPARATOR ";"
323 #define INCLUDESEPARATOR ":"
326 static char **includepath;
327 static int nincludepath = 0;
329 void wpp_add_include_path(const char *path)
332 char *cpy = pp_xstrdup(path);
334 tok = strtok(cpy, INCLUDESEPARATOR);
340 dir = pp_xstrdup(tok);
341 for(cptr = dir; *cptr; cptr++)
343 /* Convert to forward slash */
347 /* Kill eventual trailing '/' */
348 if(*(cptr = dir + strlen(dir)-1) == '/')
353 includepath = pp_xrealloc(includepath, nincludepath * sizeof(*includepath));
354 includepath[nincludepath-1] = dir;
356 tok = strtok(NULL, INCLUDESEPARATOR);
361 char *wpp_find_include(const char *name, const char *parent_name)
369 cpy = pp_xmalloc(strlen(name)+1);
372 for(ccptr = name; *ccptr; ccptr++)
374 /* Convert to forward slash */
376 /* kill double backslash */
389 /* Search directory of parent include and then -I path */
392 if ((p = strrchr( parent_name, '/' ))) p++;
393 else p = parent_name;
394 path = pp_xmalloc( (p - parent_name) + strlen(cpy) + 1 );
395 memcpy( path, parent_name, p - parent_name );
396 strcpy( path + (p - parent_name), cpy );
397 fd = open( path, O_RDONLY );
407 for(i = 0; i < nincludepath; i++)
409 path = pp_xmalloc(strlen(includepath[i]) + strlen(cpy) + 2);
410 strcpy(path, includepath[i]);
413 fd = open( path, O_RDONLY );
426 FILE *pp_open_include(const char *name, const char *parent_name, char **newpath)
431 if (!(path = wpp_find_include( name, parent_name ))) return NULL;
432 fp = fopen(path, "rt");
437 printf("Going to include <%s>\n", path);
438 if (newpath) *newpath = path;
447 *-------------------------------------------------------------------------
448 * #if, #ifdef, #ifndef, #else, #elif and #endif state management
450 * #if state transitions are made on basis of the current TOS and the next
451 * required state. The state transitions are required to housekeep because
452 * #if:s can be nested. The ignore case is activated to prevent output from
453 * within a false clause.
454 * Some special cases come from the fact that the #elif cases are not
455 * binary, but three-state. The problem is that all other elif-cases must
456 * be false when one true one has been found. A second problem is that the
457 * #else clause is a final clause. No extra #else:s may follow.
460 * if_true Process input to output
461 * if_false Process input but no output
462 * if_ignore Process input but no output
463 * if_elif Process input but no output
464 * if_elsefalse Process input but no output
465 * if_elsettrue Process input to output
467 * The possible state-sequences are [state(stack depth)] (rest can be deduced):
468 * TOS #if 1 #else #endif
469 * if_true(n) if_true(n+1) if_elsefalse(n+1)
470 * if_false(n) if_ignore(n+1) if_ignore(n+1)
471 * if_elsetrue(n) if_true(n+1) if_elsefalse(n+1)
472 * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1)
473 * if_elif(n) if_ignore(n+1) if_ignore(n+1)
474 * if_ignore(n) if_ignore(n+1) if_ignore(n+1)
476 * TOS #if 1 #elif 0 #else #endif
477 * if_true(n) if_true(n+1) if_elif(n+1) if_elif(n+1)
478 * if_false(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
479 * if_elsetrue(n) if_true(n+1) if_elif(n+1) if_elif(n+1)
480 * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
481 * if_elif(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
482 * if_ignore(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
484 * TOS #if 0 #elif 1 #else #endif
485 * if_true(n) if_false(n+1) if_true(n+1) if_elsefalse(n+1)
486 * if_false(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
487 * if_elsetrue(n) if_false(n+1) if_true(n+1) if_elsefalse(n+1)
488 * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
489 * if_elif(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
490 * if_ignore(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
492 *-------------------------------------------------------------------------
494 static const char * const pp_if_state_str[] = {
503 void pp_push_if(pp_if_state_t s)
505 if(if_stack_idx >= MAXIFSTACK)
506 pp_internal_error(__FILE__, __LINE__, "#if-stack overflow; #{if,ifdef,ifndef} nested too deeply (> %d)", MAXIFSTACK);
509 fprintf(stderr, "Push if %s:%d: %s(%d) -> %s(%d)\n", pp_status.input, pp_status.line_number, pp_if_state_str[pp_if_state()], if_stack_idx, pp_if_state_str[s], if_stack_idx+1);
511 if_stack[if_stack_idx++] = s;
522 pp_push_ignore_state();
525 pp_internal_error(__FILE__, __LINE__, "Invalid pp_if_state (%d)", (int)pp_if_state());
529 pp_if_state_t pp_pop_if(void)
531 if(if_stack_idx <= 0)
533 ppy_error("#{endif,else,elif} without #{if,ifdef,ifndef} (#if-stack underflow)");
537 switch(pp_if_state())
546 pp_pop_ignore_state();
549 pp_internal_error(__FILE__, __LINE__, "Invalid pp_if_state (%d)", (int)pp_if_state());
553 fprintf(stderr, "Pop if %s:%d: %s(%d) -> %s(%d)\n",
555 pp_status.line_number,
556 pp_if_state_str[pp_if_state()],
558 pp_if_state_str[if_stack[if_stack_idx <= 1 ? if_true : if_stack_idx-2]],
561 return if_stack[--if_stack_idx];
564 pp_if_state_t pp_if_state(void)
569 return if_stack[if_stack_idx-1];
573 void pp_next_if_state(int i)
575 switch(pp_if_state())
579 pp_push_if(i ? if_true : if_false);
585 pp_push_if(if_ignore);
588 pp_internal_error(__FILE__, __LINE__, "Invalid pp_if_state (%d) in #{if,ifdef,ifndef} directive", (int)pp_if_state());
592 int pp_get_if_depth(void)
597 /* #define WANT_NEAR_INDICATION */
599 static void generic_msg(const char *s, const char *t, const char *n, va_list ap)
601 fprintf(stderr, "%s:%d:%d: %s: ", pp_status.input ? pp_status.input : "stdin",
602 pp_status.line_number, pp_status.char_number, t);
603 vfprintf(stderr, s, ap);
604 #ifdef WANT_NEAR_INDICATION
610 for (p = cpy; *p; p++) if(!isprint(*p)) *p = ' ';
611 fprintf(stderr, " near '%s'", cpy);
616 fprintf(stderr, "\n");
619 int ppy_error(const char *s, ...)
623 generic_msg(s, "Error", ppy_text, ap);
629 int ppy_warning(const char *s, ...)
633 generic_msg(s, "Warning", ppy_text, ap);
638 void pp_internal_error(const char *file, int line, const char *s, ...)
642 fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
643 vfprintf(stderr, s, ap);
644 fprintf(stderr, "\n");