+++ /dev/null
-/*
- * Copyright 1998 Bertho A. Stultiens (BS)
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
- */
-
-#include "config.h"
-#include "wine/port.h"
-
-#include <assert.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#ifdef HAVE_IO_H
-# include <io.h>
-#endif
-
-#include "wine/wpp.h"
-#include "wpp_private.h"
-
-struct pp_status pp_status;
-
-#define HASHKEY 2039
-
-typedef struct pp_def_state
-{
- struct pp_def_state *next;
- pp_entry_t *defines[HASHKEY];
-} pp_def_state_t;
-
-static pp_def_state_t *pp_def_state;
-
-#define MAXIFSTACK 64
-static pp_if_state_t if_stack[MAXIFSTACK];
-static int if_stack_idx = 0;
-
-#if 0
-void pp_print_status(void) __attribute__((destructor));
-void pp_print_status(void)
-{
- int i;
- int sum;
- int total = 0;
- pp_entry_t *ppp;
-
- fprintf(stderr, "Defines statistics:\n");
- for(i = 0; i < HASHKEY; i++)
- {
- sum = 0;
- for(ppp = pp_def_state->defines[i]; ppp; ppp = ppp->next)
- sum++;
- total += sum;
- if (sum) fprintf(stderr, "%4d, %3d\n", i, sum);
- }
- fprintf(stderr, "Total defines: %d\n", total);
-}
-#endif
-
-void *pp_xmalloc(size_t size)
-{
- void *res;
-
- assert(size > 0);
- res = malloc(size);
- if(res == NULL)
- {
- /* Set the error flag */
- pp_status.state = 1;
- }
- return res;
-}
-
-void *pp_xrealloc(void *p, size_t size)
-{
- void *res;
-
- assert(size > 0);
- res = realloc(p, size);
- if(res == NULL)
- {
- /* Set the error flag */
- pp_status.state = 1;
- }
- return res;
-}
-
-char *pp_xstrdup(const char *str)
-{
- char *s;
- int len;
-
- assert(str != NULL);
- len = strlen(str)+1;
- s = pp_xmalloc(len);
- if(!s)
- return NULL;
- return memcpy(s, str, len);
-}
-
-static char *wpp_default_lookup(const char *name, int type, const char *parent_name,
- char **include_path, int include_path_count)
-{
- char *cpy;
- char *cptr;
- char *path;
- const char *ccptr;
- int i, fd;
-
- cpy = pp_xmalloc(strlen(name)+1);
- if(!cpy)
- return NULL;
- cptr = cpy;
-
- for(ccptr = name; *ccptr; ccptr++)
- {
- /* Convert to forward slash */
- if(*ccptr == '\\') {
- /* kill double backslash */
- if(ccptr[1] == '\\')
- ccptr++;
- *cptr = '/';
- }else {
- *cptr = *ccptr;
- }
- cptr++;
- }
- *cptr = '\0';
-
- if(type && parent_name)
- {
- /* Search directory of parent include and then -I path */
- const char *p;
-
- if ((p = strrchr( parent_name, '/' ))) p++;
- else p = parent_name;
- path = pp_xmalloc( (p - parent_name) + strlen(cpy) + 1 );
- if(!path)
- {
- free(cpy);
- return NULL;
- }
- memcpy( path, parent_name, p - parent_name );
- strcpy( path + (p - parent_name), cpy );
- fd = open( path, O_RDONLY );
- if (fd != -1)
- {
- close( fd );
- free( cpy );
- return path;
- }
- free( path );
- }
- /* Search -I path */
- for(i = 0; i < include_path_count; i++)
- {
- path = pp_xmalloc(strlen(include_path[i]) + strlen(cpy) + 2);
- if(!path)
- {
- free(cpy);
- return NULL;
- }
- strcpy(path, include_path[i]);
- strcat(path, "/");
- strcat(path, cpy);
- fd = open( path, O_RDONLY );
- if (fd != -1)
- {
- close( fd );
- free( cpy );
- return path;
- }
- free( path );
- }
- free( cpy );
- return NULL;
-}
-
-static void *wpp_default_open(const char *filename, int type) {
- return fopen(filename,"rt");
-}
-
-static void wpp_default_close(void *file) {
- fclose(file);
-}
-
-static int wpp_default_read(void *file, char *buffer, unsigned int len){
- return fread(buffer, 1, len, file);
-}
-
-static void wpp_default_write( const char *buffer, unsigned int len ) {
- fwrite(buffer, 1, len, ppy_out);
-}
-
-/* Don't comment on the hash, it's primitive but functional... */
-static int pphash(const char *str)
-{
- int sum = 0;
- while(*str)
- sum += *str++;
- return sum % HASHKEY;
-}
-
-pp_entry_t *pplookup(const char *ident)
-{
- int idx;
- pp_entry_t *ppp;
-
- if(!ident)
- return NULL;
- idx = pphash(ident);
- for(ppp = pp_def_state->defines[idx]; ppp; ppp = ppp->next)
- {
- if(!strcmp(ident, ppp->ident))
- return ppp;
- }
- return NULL;
-}
-
-static void free_pp_entry( pp_entry_t *ppp, int idx )
-{
- if(ppp->iep)
- {
- if(ppp->iep == pp_includelogiclist)
- {
- pp_includelogiclist = ppp->iep->next;
- if(pp_includelogiclist)
- pp_includelogiclist->prev = NULL;
- }
- else
- {
- ppp->iep->prev->next = ppp->iep->next;
- if(ppp->iep->next)
- ppp->iep->next->prev = ppp->iep->prev;
- }
- free(ppp->iep->filename);
- free(ppp->iep);
- }
-
- if(pp_def_state->defines[idx] == ppp)
- {
- pp_def_state->defines[idx] = ppp->next;
- if(pp_def_state->defines[idx])
- pp_def_state->defines[idx]->prev = NULL;
- }
- else
- {
- ppp->prev->next = ppp->next;
- if(ppp->next)
- ppp->next->prev = ppp->prev;
- }
-
- free(ppp);
-}
-
-/* push a new (empty) define state */
-int pp_push_define_state(void)
-{
- pp_def_state_t *state = pp_xmalloc( sizeof(*state) );
- if(!state)
- return 1;
-
- memset( state->defines, 0, sizeof(state->defines) );
- state->next = pp_def_state;
- pp_def_state = state;
- return 0;
-}
-
-/* pop the current define state */
-void pp_pop_define_state(void)
-{
- int i;
- pp_entry_t *ppp;
- pp_def_state_t *state;
-
- for (i = 0; i < HASHKEY; i++)
- {
- while ((ppp = pp_def_state->defines[i]) != NULL) pp_del_define( ppp->ident );
- }
- state = pp_def_state;
- pp_def_state = state->next;
- free( state );
-}
-
-void pp_del_define(const char *name)
-{
- pp_entry_t *ppp;
- int idx = pphash(name);
-
- if((ppp = pplookup(name)) == NULL)
- {
- if(pp_status.pedantic)
- ppy_warning("%s was not defined", name);
- return;
- }
-
- if(pp_status.debug)
- printf("Deleting (%s, %d) <%s>\n", pp_status.input, pp_status.line_number, name);
-
- free( ppp->ident );
- free( ppp->subst.text );
- free( ppp->filename );
- free_pp_entry( ppp, idx );
-}
-
-pp_entry_t *pp_add_define(const char *def, const char *text)
-{
- int len;
- char *cptr;
- int idx;
- pp_entry_t *ppp;
-
- if(!def)
- return NULL;
- idx = pphash(def);
- if((ppp = pplookup(def)) != NULL)
- {
- if(pp_status.pedantic)
- ppy_warning("Redefinition of %s\n\tPrevious definition: %s:%d", def, ppp->filename, ppp->linenumber);
- pp_del_define(def);
- }
- ppp = pp_xmalloc(sizeof(pp_entry_t));
- if(!ppp)
- return NULL;
- memset( ppp, 0, sizeof(*ppp) );
- ppp->ident = pp_xstrdup(def);
- if(!ppp->ident)
- goto error;
- ppp->type = def_define;
- ppp->subst.text = text ? pp_xstrdup(text) : NULL;
- if(text && !ppp->subst.text)
- goto error;
- ppp->filename = pp_xstrdup(pp_status.input ? pp_status.input : "<internal or cmdline>");
- if(!ppp->filename)
- goto error;
- ppp->linenumber = pp_status.input ? pp_status.line_number : 0;
- ppp->next = pp_def_state->defines[idx];
- pp_def_state->defines[idx] = ppp;
- if(ppp->next)
- ppp->next->prev = ppp;
- if(ppp->subst.text)
- {
- /* Strip trailing white space from subst text */
- len = strlen(ppp->subst.text);
- while(len && strchr(" \t\r\n", ppp->subst.text[len-1]))
- {
- ppp->subst.text[--len] = '\0';
- }
- /* Strip leading white space from subst text */
- for(cptr = ppp->subst.text; *cptr && strchr(" \t\r", *cptr); cptr++)
- ;
- if(ppp->subst.text != cptr)
- memmove(ppp->subst.text, cptr, strlen(cptr)+1);
- }
- if(pp_status.debug)
- printf("Added define (%s, %d) <%s> to <%s>\n", pp_status.input, pp_status.line_number, ppp->ident, ppp->subst.text ? ppp->subst.text : "(null)");
-
- return ppp;
-
-error:
- free(ppp->ident);
- free(ppp->subst.text);
- free(ppp);
- return NULL;
-}
-
-pp_entry_t *pp_add_macro(char *id, marg_t *args[], int nargs, mtext_t *exp)
-{
- int idx;
- pp_entry_t *ppp;
-
- if(!id)
- return NULL;
- idx = pphash(id);
- if((ppp = pplookup(id)) != NULL)
- {
- if(pp_status.pedantic)
- ppy_warning("Redefinition of %s\n\tPrevious definition: %s:%d", id, ppp->filename, ppp->linenumber);
- pp_del_define(id);
- }
- ppp = pp_xmalloc(sizeof(pp_entry_t));
- if(!ppp)
- return NULL;
- memset( ppp, 0, sizeof(*ppp) );
- ppp->ident = id;
- ppp->type = def_macro;
- ppp->margs = args;
- ppp->nargs = nargs;
- ppp->subst.mtext= exp;
- ppp->filename = pp_xstrdup(pp_status.input ? pp_status.input : "<internal or cmdline>");
- if(!ppp->filename)
- {
- free(ppp);
- return NULL;
- }
- ppp->linenumber = pp_status.input ? pp_status.line_number : 0;
- ppp->next = pp_def_state->defines[idx];
- pp_def_state->defines[idx] = ppp;
- if(ppp->next)
- ppp->next->prev = ppp;
-
- if(pp_status.debug)
- {
- fprintf(stderr, "Added macro (%s, %d) <%s(%d)> to <", pp_status.input, pp_status.line_number, ppp->ident, nargs);
- for(; exp; exp = exp->next)
- {
- switch(exp->type)
- {
- case exp_text:
- fprintf(stderr, " \"%s\" ", exp->subst.text);
- break;
- case exp_stringize:
- fprintf(stderr, " #(%d) ", exp->subst.argidx);
- break;
- case exp_concat:
- fprintf(stderr, "##");
- break;
- case exp_subst:
- fprintf(stderr, " <%d> ", exp->subst.argidx);
- break;
- }
- }
- fprintf(stderr, ">\n");
- }
- return ppp;
-}
-
-
-/*
- *-------------------------------------------------------------------------
- * Include management
- *-------------------------------------------------------------------------
- */
-#if defined(_WIN32) || defined(__MSDOS__)
-#define INCLUDESEPARATOR ";"
-#else
-#define INCLUDESEPARATOR ":"
-#endif
-
-static char **includepath;
-static int nincludepath = 0;
-
-int wpp_add_include_path(const char *path)
-{
- char *tok;
- char *cpy = pp_xstrdup(path);
- if(!cpy)
- return 1;
-
- tok = strtok(cpy, INCLUDESEPARATOR);
- while(tok)
- {
- if(*tok) {
- char *dir;
- char *cptr;
- char **new_path;
-
- dir = pp_xstrdup(tok);
- if(!dir)
- {
- free(cpy);
- return 1;
- }
- for(cptr = dir; *cptr; cptr++)
- {
- /* Convert to forward slash */
- if(*cptr == '\\')
- *cptr = '/';
- }
- /* Kill eventual trailing '/' */
- if(*(cptr = dir + strlen(dir)-1) == '/')
- *cptr = '\0';
-
- /* Add to list */
- new_path = pp_xrealloc(includepath, (nincludepath+1) * sizeof(*includepath));
- if(!new_path)
- {
- free(dir);
- free(cpy);
- return 1;
- }
- includepath = new_path;
- includepath[nincludepath] = dir;
- nincludepath++;
- }
- tok = strtok(NULL, INCLUDESEPARATOR);
- }
- free(cpy);
- return 0;
-}
-
-char *wpp_find_include(const char *name, const char *parent_name)
-{
- return wpp_default_lookup(name, !!parent_name, parent_name, includepath, nincludepath);
-}
-
-void *pp_open_include(const char *name, int type, const char *parent_name, char **newpath)
-{
- char *path;
- void *fp;
-
- if (!(path = wpp_callbacks->lookup(name, type, parent_name, includepath,
- nincludepath))) return NULL;
- fp = wpp_callbacks->open(path, type);
-
- if (fp)
- {
- if (pp_status.debug)
- printf("Going to include <%s>\n", path);
- if (newpath) *newpath = path;
- else free( path );
- return fp;
- }
- free( path );
- return NULL;
-}
-
-/*
- *-------------------------------------------------------------------------
- * #if, #ifdef, #ifndef, #else, #elif and #endif state management
- *
- * #if state transitions are made on basis of the current TOS and the next
- * required state. The state transitions are required to housekeep because
- * #if:s can be nested. The ignore case is activated to prevent output from
- * within a false clause.
- * Some special cases come from the fact that the #elif cases are not
- * binary, but three-state. The problem is that all other elif-cases must
- * be false when one true one has been found. A second problem is that the
- * #else clause is a final clause. No extra #else:s may follow.
- *
- * The states mean:
- * if_true Process input to output
- * if_false Process input but no output
- * if_ignore Process input but no output
- * if_elif Process input but no output
- * if_elsefalse Process input but no output
- * if_elsettrue Process input to output
- *
- * The possible state-sequences are [state(stack depth)] (rest can be deduced):
- * TOS #if 1 #else #endif
- * if_true(n) if_true(n+1) if_elsefalse(n+1)
- * if_false(n) if_ignore(n+1) if_ignore(n+1)
- * if_elsetrue(n) if_true(n+1) if_elsefalse(n+1)
- * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1)
- * if_elif(n) if_ignore(n+1) if_ignore(n+1)
- * if_ignore(n) if_ignore(n+1) if_ignore(n+1)
- *
- * TOS #if 1 #elif 0 #else #endif
- * if_true(n) if_true(n+1) if_elif(n+1) if_elif(n+1)
- * if_false(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
- * if_elsetrue(n) if_true(n+1) if_elif(n+1) if_elif(n+1)
- * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
- * if_elif(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
- * if_ignore(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
- *
- * TOS #if 0 #elif 1 #else #endif
- * if_true(n) if_false(n+1) if_true(n+1) if_elsefalse(n+1)
- * if_false(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
- * if_elsetrue(n) if_false(n+1) if_true(n+1) if_elsefalse(n+1)
- * if_elsefalse(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
- * if_elif(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
- * if_ignore(n) if_ignore(n+1) if_ignore(n+1) if_ignore(n+1)
- *
- *-------------------------------------------------------------------------
- */
-static const char * const pp_if_state_str[] = {
- "if_false",
- "if_true",
- "if_elif",
- "if_elsefalse",
- "if_elsetrue",
- "if_ignore"
-};
-
-void pp_push_if(pp_if_state_t s)
-{
- if(if_stack_idx >= MAXIFSTACK)
- pp_internal_error(__FILE__, __LINE__, "#if-stack overflow; #{if,ifdef,ifndef} nested too deeply (> %d)", MAXIFSTACK);
-
- if(pp_flex_debug)
- 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);
-
- if_stack[if_stack_idx++] = s;
-
- switch(s)
- {
- case if_true:
- case if_elsetrue:
- break;
- case if_false:
- case if_elsefalse:
- case if_elif:
- case if_ignore:
- pp_push_ignore_state();
- break;
- default:
- pp_internal_error(__FILE__, __LINE__, "Invalid pp_if_state (%d)", (int)pp_if_state());
- }
-}
-
-pp_if_state_t pp_pop_if(void)
-{
- if(if_stack_idx <= 0)
- {
- ppy_error("#{endif,else,elif} without #{if,ifdef,ifndef} (#if-stack underflow)");
- return if_error;
- }
-
- switch(pp_if_state())
- {
- case if_true:
- case if_elsetrue:
- break;
- case if_false:
- case if_elsefalse:
- case if_elif:
- case if_ignore:
- pp_pop_ignore_state();
- break;
- default:
- pp_internal_error(__FILE__, __LINE__, "Invalid pp_if_state (%d)", (int)pp_if_state());
- }
-
- if(pp_flex_debug)
- fprintf(stderr, "Pop 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[if_stack[if_stack_idx <= 1 ? if_true : if_stack_idx-2]],
- if_stack_idx-1);
-
- return if_stack[--if_stack_idx];
-}
-
-pp_if_state_t pp_if_state(void)
-{
- if(!if_stack_idx)
- return if_true;
- else
- return if_stack[if_stack_idx-1];
-}
-
-
-void pp_next_if_state(int i)
-{
- switch(pp_if_state())
- {
- case if_true:
- case if_elsetrue:
- pp_push_if(i ? if_true : if_false);
- break;
- case if_false:
- case if_elsefalse:
- case if_elif:
- case if_ignore:
- pp_push_if(if_ignore);
- break;
- default:
- pp_internal_error(__FILE__, __LINE__, "Invalid pp_if_state (%d) in #{if,ifdef,ifndef} directive", (int)pp_if_state());
- }
-}
-
-int pp_get_if_depth(void)
-{
- return if_stack_idx;
-}
-
-/* #define WANT_NEAR_INDICATION */
-
-static void generic_msg(const char *s, const char *t, const char *n, va_list ap)
-{
- fprintf(stderr, "%s:%d:%d: %s: ", pp_status.input ? pp_status.input : "stdin",
- pp_status.line_number, pp_status.char_number, t);
- vfprintf(stderr, s, ap);
-#ifdef WANT_NEAR_INDICATION
- {
- char *cpy, *p;
- if(n)
- {
- cpy = pp_xstrdup(n);
- if(!cpy)
- goto end;
- for (p = cpy; *p; p++) if(!isprint(*p)) *p = ' ';
- fprintf(stderr, " near '%s'", cpy);
- free(cpy);
- }
- }
-end:
-#endif
- fprintf(stderr, "\n");
-}
-
-static void wpp_default_error(const char *file, int line, int col, const char *near, const char *msg, va_list ap)
-{
- generic_msg(msg, "Error", near, ap);
- exit(1);
-}
-
-static void wpp_default_warning(const char *file, int line, int col, const char *near, const char *msg, va_list ap)
-{
- generic_msg(msg, "Warning", near, ap);
-}
-
-static const struct wpp_callbacks default_callbacks =
-{
- wpp_default_lookup,
- wpp_default_open,
- wpp_default_close,
- wpp_default_read,
- wpp_default_write,
- wpp_default_error,
- wpp_default_warning,
-};
-
-const struct wpp_callbacks *wpp_callbacks = &default_callbacks;
-
-int ppy_error(const char *s, ...)
-{
- va_list ap;
- va_start(ap, s);
- wpp_callbacks->error(pp_status.input, pp_status.line_number, pp_status.char_number, ppy_text, s, ap);
- va_end(ap);
- pp_status.state = 1;
- return 1;
-}
-
-int ppy_warning(const char *s, ...)
-{
- va_list ap;
- va_start(ap, s);
- wpp_callbacks->warning(pp_status.input, pp_status.line_number, pp_status.char_number, ppy_text, s, ap);
- va_end(ap);
- return 0;
-}
-
-void pp_internal_error(const char *file, int line, const char *s, ...)
-{
- va_list ap;
- va_start(ap, s);
- fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
- vfprintf(stderr, s, ap);
- fprintf(stderr, "\n");
- va_end(ap);
- exit(3);
-}
projects / reactos.git / blobdiff