static void add_cmdline_defines(void)
{
struct define *def;
for (def = cmdline_defines; def; def = def->next)
{
if (def->value) pp_add_define( pp_xstrdup(def->name), pp_xstrdup(def->value) );
}
}
/* add a command-line define of the form NAME=VALUE */
void wpp_add_cmdline_define( const char *value )
{
char *str = pp_xstrdup(value);
char *p = strchr( str, '=' );
if (p) *p++ = 0;
wpp_add_define( str, p );
free( str );
}
/* add a command-line define of the form NAME=VALUE */
int wpp_add_cmdline_define( const char *value )
{
char *p;
char *str = pp_xstrdup(value);
if(!str)
return 1;
p = strchr( str, '=' );
if (p) *p++ = 0;
wpp_add_define( str, p );
free( str );
return 0;
}
/* add a define to the preprocessor list */
int wpp_add_define( const char *name, const char *value )
{
struct define *def;
if (!value) value = "";
for (def = cmdline_defines; def; def = def->next)
{
if (!strcmp( def->name, name ))
{
char *new_value = pp_xstrdup(value);
if(!new_value)
return 1;
free( def->value );
def->value = new_value;
return 0;
}
}
def = pp_xmalloc( sizeof(*def) );
if(!def)
return 1;
def->next = cmdline_defines;
def->name = pp_xstrdup(name);
if(!def->name)
{
free(def);
return 1;
}
def->value = pp_xstrdup(value);
if(!def->value)
{
free(def->name);
free(def);
return 1;
}
cmdline_defines = def;
return 0;
}
/* add a define to the preprocessor list */
void wpp_add_define( const char *name, const char *value )
{
struct define *def;
if (!value) value = "";
for (def = cmdline_defines; def; def = def->next)
{
if (!strcmp( def->name, name ))
{
if (def->value) free( def->value );
def->value = pp_xstrdup(value);
return;
}
}
def = pp_xmalloc( sizeof(*def) );
def->next = cmdline_defines;
def->name = pp_xstrdup(name);
def->value = pp_xstrdup(value);
cmdline_defines = def;
}
static void add_special_defines(void)
{
time_t now = time(NULL);
pp_entry_t *ppp;
char buf[32];
strftime(buf, sizeof(buf), "\"%b %d %Y\"", localtime(&now));
pp_add_define( pp_xstrdup("__DATE__"), pp_xstrdup(buf) );
strftime(buf, sizeof(buf), "\"%H:%M:%S\"", localtime(&now));
pp_add_define( pp_xstrdup("__TIME__"), pp_xstrdup(buf) );
ppp = pp_add_define( pp_xstrdup("__FILE__"), pp_xstrdup("") );
ppp->type = def_special;
ppp = pp_add_define( pp_xstrdup("__LINE__"), pp_xstrdup("") );
ppp->type = def_special;
}
/* the main preprocessor parsing loop */
int wpp_parse( const char *input, FILE *output )
{
int ret;
pp_status.input = NULL;
pp_status.line_number = 1;
pp_status.char_number = 1;
pp_status.state = 0;
ret = pp_push_define_state();
if(ret)
return ret;
add_cmdline_defines();
add_special_defines();
if (!input) pp_status.file = stdin;
else if (!(pp_status.file = wpp_callbacks->open(input, 1)))
{
ppy_error("Could not open %s\n", input);
del_special_defines();
del_cmdline_defines();
pp_pop_define_state();
return 2;
}
pp_status.input = input ? pp_xstrdup(input) : NULL;
ppy_out = output;
pp_writestring("# 1 \"%s\" 1\n", input ? input : "");
ret = ppy_parse();
/* If there were errors during processing, return an error code */
if (!ret && pp_status.state) ret = pp_status.state;
if (input)
{
wpp_callbacks->close(pp_status.file);
free(pp_status.input);
}
/* Clean if_stack, it could remain dirty on errors */
while (pp_get_if_depth()) pp_pop_if();
del_special_defines();
del_cmdline_defines();
pp_pop_define_state();
return ret;
}
