libs/wpp/wpp_private.h

   1 /*
   2  * Copyright 1998 Bertho A. Stultiens (BS)
   3  * Copyright 2002 Alexandre Julliard
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #ifndef __WINE_WPP_PRIVATE_H
  21 #define __WINE_WPP_PRIVATE_H
  22
  23 #include <stdio.h>
  24 #include <string.h>
  25 #include "wine/list.h"
  26
  27 struct pp_entry;        /* forward */
  28 /*
  29  * Include logic
  30  * A stack of files which are already included and
  31  * are protected in the #ifndef/#endif way.
  32  */
  33 typedef struct includelogicentry {
  34         struct list entry;
  35         struct pp_entry *ppp;           /* The define which protects the file */
  36         char            *filename;      /* The filename of the include */
  37 } includelogicentry_t;
  38
  39 /*
  40  * The expansiontext of a macro
  41  */
  42 typedef enum {
  43         exp_text,       /* Simple text substitution */
  44         exp_concat,     /* Concat (##) operator requested */
  45         exp_stringize,  /* Stringize (#) operator requested */
  46         exp_subst       /* Substitute argument */
  47 } def_exp_t;
  48
  49 typedef struct mtext {
  50         struct mtext    *next;
  51         struct mtext    *prev;
  52         def_exp_t       type;
  53         union {
  54                 char    *text;
  55                 int     argidx;         /* For exp_subst and exp_stringize reference */
  56         } subst;
  57 } mtext_t;
  58
  59 /*
  60  * The define descriptor
  61  */
  62 typedef enum {
  63         def_none,       /* Not-a-define; used as return value */
  64         def_define,     /* Simple defines */
  65         def_macro,      /* Macro defines */
  66         def_special     /* Special expansions like __LINE__ and __FILE__ */
  67 } def_type_t;
  68
  69 typedef struct pp_entry {
  70         struct list entry;
  71         def_type_t      type;           /* Define or macro */
  72         char            *ident;         /* The key */
  73         char            **margs;        /* Macro arguments array or NULL if none */
  74         int             nargs;
  75         union {
  76                 mtext_t *mtext;         /* The substitution sequence or NULL if none */
  77                 char    *text;
  78         } subst;
  79         int             expanding;      /* Set when feeding substitution into the input */
  80         char            *filename;      /* Filename where it was defined */
  81         int             linenumber;     /* Linenumber where it was defined */
  82         includelogicentry_t *iep;       /* Points to the include it protects */
  83 } pp_entry_t;
  84
  85
  86 /*
  87  * If logic
  88  */
  89 #define MAXIFSTACK      64      /* If this isn't enough you should alter the source... */
  90
  91 typedef enum {
  92         if_false,
  93         if_true,
  94         if_elif,
  95         if_elsefalse,
  96         if_elsetrue,
  97         if_ignore,
  98         if_error
  99 } pp_if_state_t;
 100
 101
 102 /*
 103  * Trace the include files to prevent double reading.
 104  * This save 20..30% of processing time for most stuff
 105  * that uses complex includes.
 106  * States:
 107  * -1   Don't track or seen junk
 108  *  0   New include, waiting for "#ifndef __xxx_h"
 109  *  1   Seen #ifndef, waiting for "#define __xxx_h ..."
 110  *  2   Seen #endif, waiting for EOF
 111  */
 112 typedef struct
 113 {
 114     int state;
 115     char *ppp;             /* The define to be set from the #ifndef */
 116     int ifdepth;           /* The level of ifs at the #ifdef */
 117     int seen_junk;         /* Set when junk is seen */
 118 } include_state_t;
 119
 120 #define SIZE_INT        1
 121 #define SIZE_LONG       2
 122 #define SIZE_LONGLONG   3
 123 #define SIZE_MASK       0x00ff
 124 #define FLAG_SIGNED     0x0100
 125
 126 typedef enum {
 127         cv_sint   = SIZE_INT + FLAG_SIGNED,
 128         cv_uint   = SIZE_INT,
 129         cv_slong  = SIZE_LONG + FLAG_SIGNED,
 130         cv_ulong  = SIZE_LONG,
 131         cv_sll    = SIZE_LONGLONG + FLAG_SIGNED,
 132         cv_ull    = SIZE_LONGLONG
 133 } ctype_t;
 134
 135 typedef struct cval {
 136         ctype_t type;
 137         union {
 138                 int             si;
 139                 unsigned int    ui;
 140                 long            sl;
 141                 unsigned long   ul;
 142                 __int64         sll;
 143                 unsigned __int64 ull;
 144         } val;
 145 } cval_t;
 146
 147
 148
 149 void *pp_xmalloc(size_t);
 150 void *pp_xrealloc(void *, size_t);
 151 char *pp_xstrdup(const char *str);
 152 pp_entry_t *pplookup(const char *ident);
 153 void pp_init_define_state(void);
 154 void pp_free_define_state(void);
 155 pp_entry_t *pp_add_define(const char *def, const char *text);
 156 pp_entry_t *pp_add_macro(char *ident, char *args[], int nargs, mtext_t *exp);
 157 void pp_del_define(const char *name);
 158 void *pp_open_include(const char *name, int type, const char *parent_name, char **newpath);
 159 void pp_push_if(pp_if_state_t s);
 160 void pp_next_if_state(int);
 161 pp_if_state_t pp_pop_if(void);
 162 pp_if_state_t pp_if_state(void);
 163 int pp_get_if_depth(void);
 164 char *wpp_lookup(const char *name, int type, const char *parent_name,
 165                  char **include_path, int include_path_count);
 166
 167 #ifndef __GNUC__
 168 #define __attribute__(x)  /*nothing*/
 169 #endif
 170
 171 int ppy_error(const char *s, ...) __attribute__((format (printf, 1, 2)));
 172 int ppy_warning(const char *s, ...) __attribute__((format (printf, 1, 2)));
 173 void pp_internal_error(const char *file, int line, const char *s, ...) __attribute__((format (printf, 3, 4)));
 174
 175 /* current preprocessor state */
 176 /* everything is in this structure to avoid polluting the global symbol space */
 177 struct pp_status
 178 {
 179     char *input;        /* current input file name */
 180     FILE *file;         /* current input file descriptor */
 181     int line_number;    /* current line number */
 182     int char_number;    /* current char number in line */
 183     int pedantic;       /* pedantic option */
 184     int debug;          /* debug messages flag */
 185 };
 186
 187 extern struct pp_status pp_status;
 188 extern include_state_t pp_incl_state;
 189 extern struct list pp_includelogiclist;
 190
 191 /*
 192  * From ppl.l
 193  */
 194 extern FILE *ppy_in;
 195 extern FILE *ppy_out;
 196 extern char *ppy_text;
 197 extern int pp_flex_debug;
 198 int ppy_lex(void);
 199
 200 void pp_do_include(char *fname, int type);
 201 void pp_push_ignore_state(void);
 202 void pp_pop_ignore_state(void);
 203
 204 void pp_writestring(const char *format, ...) __attribute__((format (printf, 1, 2)));
 205
 206 /*
 207  * From ppy.y
 208  */
 209 int ppy_parse(void);
 210 extern int ppy_debug;
 211
 212 #endif  /* __WINE_WPP_PRIVATE_H */