2 * Copyright 1998 Bertho A. Stultiens (BS)
6 #ifndef __WRC_PREPROC_H
7 #define __WRC_PREPROC_H
9 struct pp_entry; /* forward */
12 * A stack of files which are already included and
13 * are protected in the #ifndef/#endif way.
15 typedef struct includelogicentry {
16 struct includelogicentry *next;
17 struct includelogicentry *prev;
18 struct pp_entry *ppp; /* The define which protects the file */
19 char *filename; /* The filename of the include */
20 } includelogicentry_t;
23 * The arguments of a macrodefinition
31 def_arg_t type; /* Normal or ... argument */
32 char *arg; /* The textual argument */
33 int nnl; /* Number of newlines in the text to subst */
37 * The expansiontext of a macro
40 exp_text, /* Simple text substitution */
41 exp_concat, /* Concat (##) operator requested */
42 exp_stringize, /* Stringize (#) operator requested */
43 exp_subst /* Substitute argument */
46 typedef struct mtext {
52 int argidx; /* For exp_subst and exp_stringize reference */
57 * The define descriptor
60 def_none, /* Not-a-define; used as return value */
61 def_define, /* Simple defines */
62 def_macro, /* Macro defines */
63 def_special /* Special expansions like __LINE__ and __FILE__ */
66 typedef struct pp_entry {
67 struct pp_entry *next;
68 struct pp_entry *prev;
69 def_type_t type; /* Define or macro */
70 char *ident; /* The key */
71 marg_t **margs; /* Macro arguments array or NULL if none */
74 mtext_t *mtext; /* The substitution sequence or NULL if none */
77 int expanding; /* Set when feeding substitution into the input */
78 char *filename; /* Filename where it was defined */
79 int linenumber; /* Linenumber where it was defined */
80 includelogicentry_t *iep; /* Points to the include it protects */
87 #define MAXIFSTACK 64 /* If this isn't enough you should alter the source... */
99 * I assume that 'long long' exists in the compiler when it has a size
100 * of 8 or bigger. If not, then we revert to a simple 'long' for now.
101 * This should prevent most unexpected things with other compilers than
102 * gcc and egcs for now.
103 * In the future it should be possible to use another way, like a
104 * structure, so that we can emulate the MS compiler.
106 #if defined(SIZEOF_LONGLONG) && SIZEOF_LONGLONG >= 8
107 typedef long long wrc_sll_t;
108 typedef unsigned long long wrc_ull_t;
110 typedef long wrc_sll_t;
111 typedef unsigned long wrc_ull_t;
118 #define SIZE_LONGLONG 5
119 #define SIZE_MASK 0x00ff
120 #define FLAG_SIGNED 0x0100
124 cv_schar = SIZE_CHAR + FLAG_SIGNED,
125 cv_uchar = SIZE_CHAR,
126 cv_sshort = SIZE_SHORT + FLAG_SIGNED,
127 cv_ushort = SIZE_SHORT,
129 cv_sint = SIZE_INT + FLAG_SIGNED,
131 cv_slong = SIZE_LONG + FLAG_SIGNED,
132 cv_ulong = SIZE_LONG,
133 cv_sll = SIZE_LONGLONG + FLAG_SIGNED,
134 cv_ull = SIZE_LONGLONG
137 typedef struct cval {
141 signed char sc; /* Explicitely signed because compilers are stupid */
157 pp_entry_t *pplookup(char *ident);
158 pp_entry_t *add_define(char *def, char *text);
159 pp_entry_t *add_cmdline_define(char *set);
160 pp_entry_t *add_special_define(char *id);
161 pp_entry_t *add_macro(char *ident, marg_t *args[], int nargs, mtext_t *exp);
162 void del_define(char *name);
163 FILE *open_include(const char *name, int search, char **newpath);
164 void add_include_path(char *path);
165 void push_if(if_state_t s);
166 void next_if_state(int);
167 if_state_t pop_if(void);
168 if_state_t if_state(void);
169 int get_if_depth(void);
177 extern int pp_flex_debug;
180 void do_include(char *fname, int type);
181 void push_ignore_state(void);
182 void pop_ignore_state(void);
184 extern int include_state;
185 extern char *include_ppp;
186 extern char *include_filename;
187 extern int include_ifdepth;
188 extern int seen_junk;
189 extern includelogicentry_t *includelogiclist;