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Use lib/hash for the symbol table.

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* src/gram.c (ntokens): Initialize to 1, to reserve a slot for
EOF.
* src/lex.c (lex): Set the `number' member of new terminals.
* src/reader.c (bucket_check_defined, bucket_make_alias)
(bucket_check_alias_consistence, bucket_translation): New.
(reader, grammar_free, readgram, token_translations_init)
(packsymbols): Adjust.
(reader): Number the predefined tokens.
* src/reduce.c (inaccessable_symbols): Just use hard coded numbers
for predefined tokens.
* src/symtab.h (bucket): Remove all the hash table related
members.
* src/symtab.c (symtab): Replace by...
(bucket_table): this.
(bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
(buckets_new, buckets_do): New.
This commit is contained in:
Akim Demaille
2002-04-07 17:43:21 +00:00
parent 280a38c306
commit 72a23c9797
7 changed files with 360 additions and 232 deletions
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16
src/lex.c
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@@ -364,9 +364,13 @@ lex (void)
obstack_1grow (&token_obstack, '\0');
token_buffer = obstack_finish (&token_obstack);
symval = getsym (token_buffer);
symval->class = token_sym;
if (symval->user_token_number == SUNDEF)
symval->user_token_number = code;
if (symval->number == -1)
{
symval->number = ntokens++;
symval->class = token_sym;
if (symval->user_token_number == SUNDEF)
symval->user_token_number = code;
}
return tok_identifier;
}
@@ -388,7 +392,11 @@ lex (void)
token_buffer = obstack_finish (&token_obstack);
symval = getsym (token_buffer);
symval->class = token_sym;
if (symval->number == -1)
{
symval->number = ntokens++;
symval->class = token_sym;
}
return tok_identifier;
}