{ NULL, -1 } };
#define KW_HASH_SIZE 64
+static struct keyword *kw_hash[KW_HASH_SIZE];
+static int kw_hash_inited;
+
#define SYM_HASH_SIZE 128
#define SYM_MAX_LEN 32
-static struct keyword *kw_hash[KW_HASH_SIZE];
-static struct symbol **sym_hash;
-
struct sym_scope {
struct sym_scope *next; /* Next on scope stack */
struct symbol *name; /* Name of this scope */
cf_find_sym(byte *c, unsigned int h0)
{
unsigned int h = h0 & (SYM_HASH_SIZE-1);
- struct symbol *s;
+ struct symbol *s, **ht;
int l;
- if (!sym_hash)
- sym_hash = cfg_allocz(SYM_HASH_SIZE * sizeof(struct keyword *));
- else
- for(s = sym_hash[h]; s; s=s->next)
+ if (ht = new_config->sym_hash)
+ {
+ for(s = ht[h]; s; s=s->next)
+ if (!strcmp(s->name, c) && s->scope->active)
+ return s;
+ }
+ if (new_config->sym_fallback)
+ {
+ /* We know only top-level scope is active */
+ for(s = new_config->sym_fallback[h]; s; s=s->next)
if (!strcmp(s->name, c) && s->scope->active)
return s;
+ }
+ if (!ht)
+ ht = new_config->sym_hash = cfg_allocz(SYM_HASH_SIZE * sizeof(struct keyword *));
l = strlen(c);
if (l > SYM_MAX_LEN)
cf_error("Symbol too long");
s = cfg_alloc(sizeof(struct symbol) + l);
- s->next = sym_hash[h];
- sym_hash[h] = s;
+ s->next = ht[h];
+ ht[h] = s;
s->scope = conf_this_scope;
s->class = SYM_VOID;
s->def = NULL;
sym->def = def;
}
+static void
+cf_lex_init_kh(void)
+{
+ struct keyword *k;
+
+ for(k=keyword_list; k->name; k++)
+ {
+ unsigned h = cf_hash(k->name) & (KW_HASH_SIZE-1);
+ k->next = kw_hash[h];
+ kw_hash[h] = k;
+ }
+ kw_hash_inited = 1;
+}
+
void
cf_lex_init(int is_cli)
{
- sym_hash = NULL;
+ if (!kw_hash_inited)
+ cf_lex_init_kh();
conf_lino = 1;
yyrestart(NULL);
if (is_cli)
conf_this_scope->active = 1;
}
-void
-cf_lex_init_tables(void)
-{
- struct keyword *k;
-
- for(k=keyword_list; k->name; k++)
- {
- unsigned h = cf_hash(k->name) & (KW_HASH_SIZE-1);
- k->next = kw_hash[h];
- kw_hash[h] = k;
- }
-}
-
void
cf_push_scope(struct symbol *sym)
{
char *err_msg; /* Parser error message */
int err_lino; /* Line containing error */
char *file_name; /* Name of configuration file */
+ struct symbol **sym_hash; /* Lexer: symbol hash table */
+ struct symbol **sym_fallback; /* Lexer: fallback symbol hash table */
};
extern struct config *config, *new_config;
extern int conf_lino;
-void cf_lex_init_tables(void);
int cf_lex(void);
void cf_lex_init(int is_cli);
struct symbol *cf_find_symbol(byte *c);