#include "quote.h"
#include "getargs.h"
#include "files.h"
-#include "xalloc.h"
#include "symtab.h"
#include "options.h"
#include "lex.h"
if (!no_lines_flag)
{
obstack_fgrow2 (&attrs_obstack, muscle_find ("linef"),
- lineno, quotearg_style (c_quoting_style,
+ lineno, quotearg_style (c_quoting_style,
muscle_find("filename")));
}
#endif
static void
parse_token_decl (symbol_class what_is, symbol_class what_is_not)
{
- token_t token = 0;
- char *typename = 0;
+ token_t token = tok_undef;
+ char *typename = NULL;
/* The symbol being defined. */
struct bucket *symbol = NULL;
/* symbol and symval combined are only one symbol */
nsyms--;
}
- translations = 1;
symbol = NULL;
}
else if (token == tok_identifier)
else if (symbol && token == tok_number)
{
symbol->user_token_number = numval;
- translations = 1;
}
else
{
if (prev == tok_identifier)
{
symval->user_token_number = numval;
- translations = 1;
}
else
{
/*--------------------------------------------------------------.
-| Copy the union declaration into ATTRS_OBSTACK (and fdefines), |
-| where it is made into the definition of YYSTYPE, the type of |
-| elements of the parser value stack. |
+| Copy the union declaration into the stype muscle |
+| (and fdefines), where it is made into the definition of |
+| YYSTYPE, the type of elements of the parser value stack. |
`--------------------------------------------------------------*/
static void
{
int c;
int count = 0;
+ struct obstack union_obstack;
if (typed)
complain (_("multiple %s declarations"), "%union");
typed = 1;
-
- if (!no_lines_flag)
- {
- obstack_fgrow2 (&attrs_obstack, muscle_find ("linef"),
- lineno, quotearg_style (c_quoting_style,
- muscle_find("filename")));
- }
- else
+ if (no_lines_flag)
obstack_1grow (&attrs_obstack, '\n');
-
- obstack_sgrow (&attrs_obstack, "typedef union");
+
+ obstack_init (&union_obstack);
+ obstack_sgrow (&union_obstack, "union");
if (defines_flag)
obstack_sgrow (&defines_obstack, "typedef union");
while (c != EOF)
{
- obstack_1grow (&attrs_obstack, c);
- if (defines_flag)
- obstack_1grow (&defines_obstack, c);
+ /* If C contains '/', it is output by copy_comment (). */
+ if (c != '/')
+ {
+ obstack_1grow (&attrs_obstack, c);
+ if (defines_flag)
+ obstack_1grow (&defines_obstack, c);
+ }
switch (c)
{
break;
case '/':
- copy_comment2 (finput, &defines_obstack, &attrs_obstack);
+ copy_comment2 (finput, &defines_obstack, &union_obstack);
break;
case '{':
count--;
if (count <= 0)
{
- obstack_sgrow (&attrs_obstack, " YYSTYPE;\n");
if (defines_flag)
obstack_sgrow (&defines_obstack, " YYSTYPE;\n");
/* JF don't choke on trailing semi */
c = skip_white_space ();
if (c != ';')
ungetc (c, finput);
+ obstack_1grow (&union_obstack, 0);
+ muscle_insert ("stype", obstack_finish (&union_obstack));
return;
}
}
c = getc (finput);
}
+
}
char *typename = 0;
int usrtoknum;
- translations = 1;
token = lex (); /* fetch typename or first token */
if (token == tok_typename)
{
nsyms--;
}
-/* FIXME. */
-
static void
parse_muscle_decl (void)
{
copy_identifier (finput, &muscle_obstack);
obstack_1grow (&muscle_obstack, 0);
muscle_key = obstack_finish (&muscle_obstack);
-
+
/* Read value. */
ch = skip_white_space ();
if (ch != '"')
/* Complete with parse_dquoted_param () on the CVS branch 1.29. */
}
-/*------------------------------------------.
-| Parse what comes after %header_extension. |
-`------------------------------------------*/
-
-static void
-parse_header_extension_decl (void)
-{
- char buff[32];
-
- if (header_extension)
- complain (_("multiple %%header_extension declarations"));
- fscanf (finput, "%s", buff);
- header_extension = xstrdup (buff);
-}
-
-/*------------------------------------------.
-| Parse what comes after %source_extension. |
-`------------------------------------------*/
-
-static void
-parse_source_extension_decl (void)
-{
- char buff[32];
-
- if (src_extension)
- complain (_("multiple %%source_extension declarations"));
- fscanf (finput, "%s", buff);
- src_extension = xstrdup (buff);
-}
-
/*----------------------------------------------------------------.
| Read from finput until `%%' is seen. Discard the `%%'. Handle |
| any `%' declarations, and copy the contents of any `%{ ... %}' |
parse_assoc_decl (non_assoc);
break;
- case tok_hdrext:
- parse_header_extension_decl ();
- break;
-
- case tok_srcext:
- parse_source_extension_decl ();
- break;
-
case tok_define:
parse_muscle_decl ();
break;
-
+
case tok_skel:
parse_skel_decl ();
break;
if (!no_lines_flag)
{
obstack_fgrow2 (&action_obstack, muscle_find ("linef"),
- lineno, quotearg_style (c_quoting_style,
+ lineno, quotearg_style (c_quoting_style,
muscle_find ("filename")));
}
obstack_1grow (&action_obstack, '{');
{
char c;
struct obstack el_obstack;
-
+
obstack_init (&el_obstack);
while ((c = getc (finput)) != EOF)
obstack_1grow (&el_obstack, c);
-
+
obstack_1grow (&el_obstack, 0);
muscle_insert ("epilogue", obstack_finish (&el_obstack));
}
continue;
obstack_fgrow2 (oout, "# define\t%s\t%d\n",
- symbol,
- (translations ? bp->user_token_number : bp->value));
+ symbol, bp->user_token_number);
if (semantic_parser)
+ /* FIXME: This is certainly dead wrong, and should be just as
+ above. --akim. */
obstack_fgrow2 (oout, "# define\tT%s\t%d\n", symbol, bp->value);
}
}
static void
packsymbols (void)
{
- bucket *bp;
+ bucket *bp = NULL;
int tokno = 1;
- int i;
+ int i, j;
int last_user_token_number;
static char DOLLAR[] = "$";
if (bp->class == token_sym)
{
- if (translations && !(bp->user_token_number))
+ if (!bp->user_token_number)
bp->user_token_number = ++last_user_token_number;
if (bp->user_token_number > max_user_token_number)
max_user_token_number = bp->user_token_number;
user_toknums[bp->value] = bp->user_token_number;
sprec[bp->value] = bp->prec;
sassoc[bp->value] = bp->assoc;
-
}
- if (translations)
- {
- int j;
-
- token_translations = XCALLOC (short, max_user_token_number + 1);
+ token_translations = XCALLOC (short, max_user_token_number + 1);
- /* initialize all entries for literal tokens to 2, the internal
- token number for $undefined., which represents all invalid
- inputs. */
- for (j = 0; j <= max_user_token_number; j++)
- token_translations[j] = 2;
+ /* initialize all entries for literal tokens to 2, the internal
+ token number for $undefined., which represents all invalid
+ inputs. */
+ for (j = 0; j <= max_user_token_number; j++)
+ token_translations[j] = 2;
- for (bp = firstsymbol; bp; bp = bp->next)
- {
- if (bp->value >= ntokens)
- continue; /* non-terminal */
- if (bp->user_token_number == SALIAS)
- continue;
- if (token_translations[bp->user_token_number] != 2)
- complain (_("tokens %s and %s both assigned number %d"),
- tags[token_translations[bp->user_token_number]],
- bp->tag, bp->user_token_number);
- token_translations[bp->user_token_number] = bp->value;
- }
+ for (bp = firstsymbol; bp; bp = bp->next)
+ {
+ if (bp->value >= ntokens)
+ continue; /* non-terminal */
+ if (bp->user_token_number == SALIAS)
+ continue;
+ if (token_translations[bp->user_token_number] != 2)
+ complain (_("tokens %s and %s both assigned number %d"),
+ tags[token_translations[bp->user_token_number]],
+ bp->tag, bp->user_token_number);
+ token_translations[bp->user_token_number] = bp->value;
}
error_token_number = errtoken->value;
- output_token_defines (&output_obstack);
- obstack_1grow (&output_obstack, 0);
- muscle_insert ("tokendef", obstack_finish (&output_obstack));
+ {
+ struct obstack tokendefs;
+ obstack_init (&tokendefs);
+ output_token_defines (&tokendefs);
+ obstack_1grow (&tokendefs, 0);
+ muscle_insert ("tokendef", xstrdup (obstack_finish (&tokendefs)));
+ obstack_free (&tokendefs, NULL);
+ }
#if 0
if (!no_parser_flag)
start_flag = 0;
startval = NULL; /* start symbol not specified yet. */
-#if 0
- /* initially assume token number translation not needed. */
- translations = 0;
-#endif
- /* Nowadays translations is always set to 1, since we give `error' a
- user-token-number to satisfy the Posix demand for YYERRCODE==256.
- */
- translations = 1;
-
nsyms = 1;
nvars = 0;
nrules = 0;
grammar = NULL;
- init_lex ();
+ lex_init ();
lineno = 1;
/* Initialize the muscle obstack. */
packsymbols ();
/* Convert the grammar into the format described in gram.h. */
packgram ();
- /* Free the symbol table data structure since symbols are now all
- referred to by symbol number. */
- free_symtab ();
}
projects / bison.git / blobdiff