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 #ifndef __WINE_CONFIG_H
  24 # error You must include config.h to use this header
  25 #endif
  26
  27 #include <stdio.h>
  28 #include <string.h>
  29
  30 struct pp_entry;        /* forward */
  31 /*
  32  * Include logic
  33  * A stack of files which are already included and
  34  * are protected in the #ifndef/#endif way.
  35  */
  36 typedef struct includelogicentry {
  37         struct includelogicentry *next;
  38         struct includelogicentry *prev;
  39         struct pp_entry *ppp;           /* The define which protects the file */
  40         char            *filename;      /* The filename of the include */
  41 } includelogicentry_t;
  42
  43 /*
  44  * The arguments of a macrodefinition
  45  */
  46 typedef enum {
  47         arg_single,
  48         arg_list
  49 } def_arg_t;
  50
  51 typedef struct marg {
  52         def_arg_t       type;   /* Normal or ... argument */
  53         char            *arg;   /* The textual argument */
  54         int             nnl;    /* Number of newlines in the text to subst */
  55 } marg_t;
  56
  57 /*
  58  * The expansiontext of a macro
  59  */
  60 typedef enum {
  61         exp_text,       /* Simple text substitution */
  62         exp_concat,     /* Concat (##) operator requested */
  63         exp_stringize,  /* Stringize (#) operator requested */
  64         exp_subst       /* Substitute argument */
  65 } def_exp_t;
  66
  67 typedef struct mtext {
  68         struct mtext    *next;
  69         struct mtext    *prev;
  70         def_exp_t       type;
  71         union {
  72                 char    *text;
  73                 int     argidx;         /* For exp_subst and exp_stringize reference */
  74         } subst;
  75 } mtext_t;
  76
  77 /*
  78  * The define descriptor
  79  */
  80 typedef enum {
  81         def_none,       /* Not-a-define; used as return value */
  82         def_define,     /* Simple defines */
  83         def_macro,      /* Macro defines */
  84         def_special     /* Special expansions like __LINE__ and __FILE__ */
  85 } def_type_t;
  86
  87 typedef struct pp_entry {
  88         struct pp_entry *next;
  89         struct pp_entry *prev;
  90         def_type_t      type;           /* Define or macro */
  91         char            *ident;         /* The key */
  92         marg_t          **margs;        /* Macro arguments array or NULL if none */
  93         int             nargs;
  94         union {
  95                 mtext_t *mtext;         /* The substitution sequence or NULL if none */
  96                 char    *text;
  97         } subst;
  98         int             expanding;      /* Set when feeding substitution into the input */
  99         char            *filename;      /* Filename where it was defined */
 100         int             linenumber;     /* Linenumber where it was defined */
 101         includelogicentry_t *iep;       /* Points to the include it protects */
 102 } pp_entry_t;
 103
 104
 105 /*
 106  * If logic
 107  */
 108 #define MAXIFSTACK      64      /* If this isn't enough you should alter the source... */
 109
 110 typedef enum {
 111         if_false,
 112         if_true,
 113         if_elif,
 114         if_elsefalse,
 115         if_elsetrue,
 116         if_ignore,
 117         if_error
 118 } pp_if_state_t;
 119
 120
 121 /*
 122  * Trace the include files to prevent double reading.
 123  * This save 20..30% of processing time for most stuff
 124  * that uses complex includes.
 125  * States:
 126  * -1   Don't track or seen junk
 127  *  0   New include, waiting for "#ifndef __xxx_h"
 128  *  1   Seen #ifndef, waiting for "#define __xxx_h ..."
 129  *  2   Seen #endif, waiting for EOF
 130  */
 131 typedef struct
 132 {
 133     int state;
 134     char *ppp;             /* The define to be set from the #ifndef */
 135     int ifdepth;           /* The level of ifs at the #ifdef */
 136     int seen_junk;         /* Set when junk is seen */
 137 } include_state_t;
 138
 139
 140 /*
 141  * If the configure says we have long long then we can use it.  Presumably
 142  * if we have long long then we have strtoull and strtoll too.  If that is
 143  * not the case we will need to add to the configure tests.
 144  * If we do not have long long , then we revert to a simple 'long' for now.
 145  * This should prevent most unexpected things with other compilers than
 146  * gcc and egcs for now.
 147  * In the future it should be possible to use another way, like a
 148  * structure, so that we can emulate the MS compiler.
 149  */
 150 #ifdef HAVE_LONG_LONG
 151 typedef long long wrc_sll_t;
 152 typedef unsigned long long wrc_ull_t;
 153 #else
 154 typedef long wrc_sll_t;
 155 typedef unsigned long wrc_ull_t;
 156 #endif
 157
 158 #define SIZE_CHAR       1
 159 #define SIZE_SHORT      2
 160 #define SIZE_INT        3
 161 #define SIZE_LONG       4
 162 #define SIZE_LONGLONG   5
 163 #define SIZE_MASK       0x00ff
 164 #define FLAG_SIGNED     0x0100
 165
 166 typedef enum {
 167 #if 0
 168         cv_schar  = SIZE_CHAR + FLAG_SIGNED,
 169         cv_uchar  = SIZE_CHAR,
 170         cv_sshort = SIZE_SHORT + FLAG_SIGNED,
 171         cv_ushort = SIZE_SHORT,
 172 #endif
 173         cv_sint   = SIZE_INT + FLAG_SIGNED,
 174         cv_uint   = SIZE_INT,
 175         cv_slong  = SIZE_LONG + FLAG_SIGNED,
 176         cv_ulong  = SIZE_LONG,
 177         cv_sll    = SIZE_LONGLONG + FLAG_SIGNED,
 178         cv_ull    = SIZE_LONGLONG
 179 } ctype_t;
 180
 181 typedef struct cval {
 182         ctype_t type;
 183         union {
 184 #if 0
 185                 signed char     sc;     /* Explicitly signed because compilers are stupid */
 186                 unsigned char   uc;
 187                 short           ss;
 188                 unsigned short  us;
 189 #endif
 190                 int             si;
 191                 unsigned int    ui;
 192                 long            sl;
 193                 unsigned long   ul;
 194                 wrc_sll_t       sll;
 195                 wrc_ull_t       ull;
 196         } val;
 197 } cval_t;
 198
 199
 200
 201 void *pp_xmalloc(size_t);
 202 void *pp_xrealloc(void *, size_t);
 203 char *pp_xstrdup(const char *str);
 204 pp_entry_t *pplookup(const char *ident);
 205 int pp_push_define_state(void);
 206 void pp_pop_define_state(void);
 207 pp_entry_t *pp_add_define(const char *def, const char *text);
 208 pp_entry_t *pp_add_macro(char *ident, marg_t *args[], int nargs, mtext_t *exp);
 209 void pp_del_define(const char *name);
 210 void *pp_open_include(const char *name, const char *parent_name, char **newpath);
 211 void pp_push_if(pp_if_state_t s);
 212 void pp_next_if_state(int);
 213 pp_if_state_t pp_pop_if(void);
 214 pp_if_state_t pp_if_state(void);
 215 int pp_get_if_depth(void);
 216
 217 #ifndef __GNUC__
 218 #define __attribute__(x)  /*nothing*/
 219 #endif
 220
 221 extern const struct wpp_callbacks *wpp_callbacks;
 222
 223 int ppy_error(const char *s, ...) __attribute__((format (printf, 1, 2)));
 224 int ppy_warning(const char *s, ...) __attribute__((format (printf, 1, 2)));
 225 void pp_internal_error(const char *file, int line, const char *s, ...) __attribute__((format (printf, 3, 4)));
 226
 227 /* current preprocessor state */
 228 /* everything is in this structure to avoid polluting the global symbol space */
 229 struct pp_status
 230 {
 231     const char *input;  /* current input file name */
 232     void *file;         /* current input file descriptor */
 233     int line_number;    /* current line number */
 234     int char_number;    /* current char number in line */
 235     int state;          /* current error state */
 236     int pedantic;       /* pedantic option */
 237     int debug;          /* debug messages flag */
 238 };
 239
 240 extern struct pp_status pp_status;
 241 extern include_state_t pp_incl_state;
 242 extern includelogicentry_t *pp_includelogiclist;
 243
 244 /*
 245  * From ppl.l
 246  */
 247 extern FILE *ppy_in;
 248 extern FILE *ppy_out;
 249 extern char *ppy_text;
 250 extern int pp_flex_debug;
 251 int ppy_lex(void);
 252
 253 void pp_do_include(char *fname, int type);
 254 void pp_push_ignore_state(void);
 255 void pp_pop_ignore_state(void);
 256
 257 void pp_writestring(const char *format, ...) __attribute__((format (printf, 1, 2)));
 258
 259 /*
 260  * From ppy.y
 261  */
 262 int ppy_parse(void);
 263 extern int ppy_debug;
 264
 265 #endif  /* __WINE_WPP_PRIVATE_H */