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"
36 #include "wpp_private.h"
38 struct pp_status pp_status;
42 typedef struct pp_def_state
44 struct pp_def_state *next;
45 pp_entry_t *defines[HASHKEY];
48 static pp_def_state_t *pp_def_state;
51 static pp_if_state_t if_stack[MAXIFSTACK];
52 static int if_stack_idx = 0;
55 void pp_print_status(void) __attribute__((destructor));
56 void pp_print_status(void)
63 fprintf(stderr, "Defines statistics:\n");
64 for(i = 0; i < HASHKEY; i++)
67 for(ppp = pp_def_state->defines[i]; ppp; ppp = ppp->next)
70 if (sum) fprintf(stderr, "%4d, %3d\n", i, sum);
72 fprintf(stderr, "Total defines: %d\n", total);
76 void *pp_xmalloc(size_t size)
84 fprintf(stderr, "Virtual memory exhausted.\n");
90 void *pp_xrealloc(void *p, size_t size)
95 res = realloc(p, size);
98 fprintf(stderr, "Virtual memory exhausted.\n");
104 char *pp_xstrdup(const char *str)
112 return memcpy(s, str, len);
115 /* Don't comment on the hash, its primitive but functional... */
116 static int pphash(const char *str)
121 return sum % HASHKEY;
124 pp_entry_t *pplookup(const char *ident)
126 int idx = pphash(ident);
129 for(ppp = pp_def_state->defines[idx]; ppp; ppp = ppp->next)
131 if(!strcmp(ident, ppp->ident))
137 static void free_pp_entry( pp_entry_t *ppp, int idx )
141 if(ppp->iep == pp_includelogiclist)
143 pp_includelogiclist = ppp->iep->next;
144 if(pp_includelogiclist)
145 pp_includelogiclist->prev = NULL;
149 ppp->iep->prev->next = ppp->iep->next;
151 ppp->iep->next->prev = ppp->iep->prev;
153 free(ppp->iep->filename);
157 if(pp_def_state->defines[idx] == ppp)
159 pp_def_state->defines[idx] = ppp->next;
160 if(pp_def_state->defines[idx])
161 pp_def_state->defines[idx]->prev = NULL;
165 ppp->prev->next = ppp->next;
167 ppp->next->prev = ppp->prev;
173 /* push a new (empty) define state */
174 void pp_push_define_state(void)
176 pp_def_state_t *state = pp_xmalloc( sizeof(*state) );
178 memset( state->defines, 0, sizeof(state->defines) );
179 state->next = pp_def_state;
180 pp_def_state = state;
183 /* pop the current define state */
184 void pp_pop_define_state(void)
188 pp_def_state_t *state;
190 for (i = 0; i < HASHKEY; i++)
192 while ((ppp = pp_def_state->defines[i]) != NULL) free_pp_entry( ppp, i );
194 state = pp_def_state;
195 pp_def_state = state->next;
199 void pp_del_define(const char *name)
203 if((ppp = pplookup(name)) == NULL)
205 if(pp_status.pedantic)
206 ppy_warning("%s was not defined", name);
210 free_pp_entry( ppp, pphash(name) );
213 printf("Deleted (%s, %d) <%s>\n", pp_status.input, pp_status.line_number, name);
216 pp_entry_t *pp_add_define(char *def, char *text)
220 int idx = pphash(def);
223 if((ppp = pplookup(def)) != NULL)
225 if(pp_status.pedantic)
226 ppy_warning("Redefinition of %s\n\tPrevious definition: %s:%d", def, ppp->filename, ppp->linenumber);
229 ppp = pp_xmalloc(sizeof(pp_entry_t));
230 memset( ppp, 0, sizeof(*ppp) );
232 ppp->type = def_define;
233 ppp->subst.text = text;
234 ppp->filename = pp_xstrdup(pp_status.input ? pp_status.input : "<internal or cmdline>");
235 ppp->linenumber = pp_status.input ? pp_status.line_number : 0;
236 ppp->next = pp_def_state->defines[idx];
237 pp_def_state->defines[idx] = ppp;
239 ppp->next->prev = ppp;
242 /* Strip trailing white space from subst text */
244 while(len && strchr(" \t\r\n", text[len-1]))
248 /* Strip leading white space from subst text */
249 for(cptr = text; *cptr && strchr(" \t\r", *cptr); cptr++)
252 memmove(text, cptr, strlen(cptr)+1);
255 printf("Added define (%s, %d) <%s> to <%s>\n", pp_status.input, pp_status.line_number, ppp->ident, text ? text : "(null)");
260 pp_entry_t *pp_add_macro(char *id, marg_t *args[], int nargs, mtext_t *exp)
262 int idx = pphash(id);
265 if((ppp = pplookup(id)) != NULL)
267 if(pp_status.pedantic)
268 ppy_warning("Redefinition of %s\n\tPrevious definition: %s:%d", id, ppp->filename, ppp->linenumber);
271 ppp = pp_xmalloc(sizeof(pp_entry_t));
272 memset( ppp, 0, sizeof(*ppp) );
274 ppp->type = def_macro;
277 ppp->subst.mtext= exp;
278 ppp->filename = pp_xstrdup(pp_status.input ? pp_status.input : "<internal or cmdline>");
279 ppp->linenumber = pp_status.input ? pp_status.line_number : 0;
280 ppp->next = pp_def_state->defines[idx];
281 pp_def_state->defines[idx] = ppp;
283 ppp->next->prev = ppp;
287 fprintf(stderr, "Added macro (%s, %d) <%s(%d)> to <", pp_status.input, pp_status.line_number, ppp->ident, nargs);
288 for(; exp; exp = exp->next)
293 fprintf(stderr, " \"%s\" ", exp->subst.text);
296 fprintf(stderr, " #(%d) ", exp->subst.argidx);
299 fprintf(stderr, "##");
302 fprintf(stderr, " <%d> ", exp->subst.argidx);
306 fprintf(stderr, ">\n");
313 *-------------------------------------------------------------------------
315 *-------------------------------------------------------------------------
317 #if defined(_Windows) || defined(__MSDOS__)
318 #define INCLUDESEPARATOR ";"
320 #define INCLUDESEPARATOR ":"
323 static char **includepath;
324 static int nincludepath = 0;
326 void wpp_add_include_path(const char *path)
329 char *cpy = pp_xstrdup(path);
331 tok = strtok(cpy, INCLUDESEPARATOR);
337 dir = pp_xstrdup(tok);
338 for(cptr = dir; *cptr; cptr++)
340 /* Convert to forward slash */
344 /* Kill eventual trailing '/' */
345 if(*(cptr = dir + strlen(dir)-1) == '/')
350 includepath = pp_xrealloc(includepath, nincludepath * sizeof(*includepath));
351 includepath[nincludepath-1] = dir;
353 tok = strtok(NULL, INCLUDESEPARATOR);
358 char *wpp_find_include(const char *name, const char *parent_name)
366 cpy = pp_xmalloc(strlen(name)+1);
369 for(ccptr = name; *ccptr; ccptr++)
371 /* Convert to forward slash */
373 /* kill double backslash */
386 /* Search directory of parent include and then -I path */
389 if ((p = strrchr( parent_name, '/' ))) p++;
390 else p = parent_name;
391 path = pp_xmalloc( (p - parent_name) + strlen(cpy) + 1 );
392 memcpy( path, parent_name, p - parent_name );
393 strcpy( path + (p - parent_name), cpy );
394 fd = open( path, O_RDONLY );
404 for(i = 0; i < nincludepath; i++)
406 path = pp_xmalloc(strlen(includepath[i]) + strlen(cpy) + 2);
407 strcpy(path, includepath[i]);
410 fd = open( path, O_RDONLY );
423 FILE *pp_open_include(const char *name, const char *parent_name, char **newpath)
428 if (!(path = wpp_find_include( name, parent_name ))) return NULL;
429 fp = fopen(path, "rt");
434 printf("Going to include <%s>\n", path);
435 if (newpath) *newpath = path;
444 *-------------------------------------------------------------------------
445 * #if, #ifdef, #ifndef, #else, #elif and #endif state management
447 * #if state transitions are made on basis of the current TOS and the next
448 * required state. The state transitions are required to housekeep because
449 * #if:s can be nested. The ignore case is activated to prevent output from
450 * within a false clause.
451 * Some special cases come from the fact that the #elif cases are not
452 * binary, but three-state. The problem is that all other elif-cases must
453 * be false when one true one has been found. A second problem is that the
454 * #else clause is a final clause. No extra #else:s may follow.
457 * if_true Process input to output
458 * if_false Process input but no output
459 * if_ignore Process input but no output
460 * if_elif Process input but no output
461 * if_elsefalse Process input but no output
462 * if_elsettrue Process input to output
464 * The possible state-sequences are [state(stack depth)] (rest can be deduced):
465 * TOS #if 1 #else #endif
466 * if_true(n) if_true(n+1) if_elsefalse(n+1)
467 * if_false(n) if_ignore(n+1) if_ignore(n+1)
468 * if_elsetrue(n) if_true(n+1) if_elsefalse(n+1)
469 * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1)
470 * if_elif(n) if_ignore(n+1) if_ignore(n+1)
471 * if_ignore(n) if_ignore(n+1) if_ignore(n+1)
473 * TOS #if 1 #elif 0 #else #endif
474 * if_true(n) if_true(n+1) if_elif(n+1) if_elif(n+1)
475 * if_false(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
476 * if_elsetrue(n) if_true(n+1) if_elif(n+1) if_elif(n+1)
477 * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
478 * if_elif(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
479 * if_ignore(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
481 * TOS #if 0 #elif 1 #else #endif
482 * if_true(n) if_false(n+1) if_true(n+1) if_elsefalse(n+1)
483 * if_false(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
484 * if_elsetrue(n) if_false(n+1) if_true(n+1) if_elsefalse(n+1)
485 * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
486 * if_elif(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
487 * if_ignore(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
489 *-------------------------------------------------------------------------
491 static const char * const pp_if_state_str[] = {
500 void pp_push_if(pp_if_state_t s)
502 if(if_stack_idx >= MAXIFSTACK)
503 pp_internal_error(__FILE__, __LINE__, "#if-stack overflow; #{if,ifdef,ifndef} nested too deeply (> %d)", MAXIFSTACK);
506 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);
508 if_stack[if_stack_idx++] = s;
519 pp_push_ignore_state();
524 pp_if_state_t pp_pop_if(void)
526 if(if_stack_idx <= 0)
527 ppy_error("#{endif,else,elif} without #{if,ifdef,ifndef} (#if-stack underflow)");
529 switch(pp_if_state())
538 pp_pop_ignore_state();
543 fprintf(stderr, "Pop if %s:%d: %s(%d) -> %s(%d)\n",
545 pp_status.line_number,
546 pp_if_state_str[pp_if_state()],
548 pp_if_state_str[if_stack[if_stack_idx <= 1 ? if_true : if_stack_idx-2]],
551 return if_stack[--if_stack_idx];
554 pp_if_state_t pp_if_state(void)
559 return if_stack[if_stack_idx-1];
563 void pp_next_if_state(int i)
565 switch(pp_if_state())
569 pp_push_if(i ? if_true : if_false);
575 pp_push_if(if_ignore);
578 pp_internal_error(__FILE__, __LINE__, "Invalid pp_if_state (%d) in #{if,ifdef,ifndef} directive", (int)pp_if_state());
582 int pp_get_if_depth(void)
587 /* #define WANT_NEAR_INDICATION */
589 static void generic_msg(const char *s, const char *t, const char *n, va_list ap)
591 fprintf(stderr, "%s:%d:%d: %s: ", pp_status.input ? pp_status.input : "stdin",
592 pp_status.line_number, pp_status.char_number, t);
593 vfprintf(stderr, s, ap);
594 #ifdef WANT_NEAR_INDICATION
600 for (p = cpy; *p; p++) if(!isprint(*p)) *p = ' ';
601 fprintf(stderr, " near '%s'", cpy);
606 fprintf(stderr, "\n");
609 int ppy_error(const char *s, ...)
613 generic_msg(s, "Error", ppy_text, ap);
619 int ppy_warning(const char *s, ...)
623 generic_msg(s, "Warning", ppy_text, ap);
628 void pp_internal_error(const char *file, int line, const char *s, ...)
632 fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
633 vfprintf(stderr, s, ap);
634 fprintf(stderr, "\n");