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Move symbols handling code out of the reader.

Browse Source 
* src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
(axiom): Move to...
* src/symtab.h, src/symtab.c: here.
* src/gram.c (start_symbol): Remove: use startsymbol->number.
* src/reader.c (startval): Rename as...
* src/symtab.h, src/symtab.c (startsymbol): this.
* src/reader.c: Adjust.
* src/reader.c (symbol_check_defined, symbol_make_alias)
(symbol_check_alias_consistence, symbol_pack, symbol_translation)
(token_translations_init)
Move to...
* src/symtab.c: here.
* src/reader.c (packsymbols): Move to...
* src/symtab.h, src/symtab.c (symbols_pack): here.
* src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
argument.
This commit is contained in:
Akim Demaille
2002-06-10 08:35:39 +00:00
parent e9bca3aded
commit 2f1afb737f
18 changed files with 1071 additions and 1192 deletions
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10
src/reduce.c
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@@ -165,9 +165,9 @@ inaccessable_symbols (void)
Pp = bitset_create (nrules + 1, BITSET_FIXED);
/* If the start symbol isn't useful, then nothing will be useful. */
if (bitset_test (N, start_symbol - ntokens))
if (bitset_test (N, axiom->number - ntokens))
{
bitset_set (V, start_symbol);
bitset_set (V, axiom->number);
while (1)
{
@@ -315,7 +315,7 @@ nonterminals_reduce (void)
if (ISVAR (*rhsp))
*rhsp = symbol_number_as_item_number (nontermmap[*rhsp]);
}
start_symbol = nontermmap[start_symbol];
axiom->number = nontermmap[axiom->number];
}
nsyms -= nuseless_nonterminals;
@@ -435,9 +435,9 @@ reduce_grammar (void)
reduce_print ();
if (!bitset_test (N, start_symbol - ntokens))
if (!bitset_test (N, axiom->number - ntokens))
fatal (_("Start symbol %s does not derive any sentence"),
quotearg_style (escape_quoting_style, symbols[start_symbol]->tag));
quotearg_style (escape_quoting_style, symbols[axiom->number]->tag));
/* First reduce the nonterminals, as they renumber themselves in the
whole grammar. If you change the order, nonterms would be