#include "quote.h"
#include "getargs.h"
#include "files.h"
-#include "xalloc.h"
#include "symtab.h"
+#include "options.h"
#include "lex.h"
#include "gram.h"
#include "complain.h"
#include "output.h"
#include "reader.h"
#include "conflicts.h"
-#include "macrotab.h"
+#include "muscle_tab.h"
/* Number of slots allocated (but not necessarily used yet) in `rline' */
static int rline_allocated;
#if 0
if (!no_lines_flag)
- obstack_fgrow2 (&attrs_obstack, "#line %d %s\n",
- lineno, quotearg_style (c_quoting_style, infile));
+ {
+ obstack_fgrow2 (&attrs_obstack, muscle_find ("linef"),
+ lineno, quotearg_style (c_quoting_style,
+ muscle_find("filename")));
+ }
#endif
after_percent = 0;
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, "\n#line %d %s\n",
- lineno, quotearg_style (c_quoting_style, infile));
- else
+ /* FIXME: I'm worried: are you sure attrs_obstack is properly
+ filled? */
+ 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 (&union_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_macro_decl (void)
+parse_muscle_decl (void)
{
int ch = ungetc (skip_white_space (), finput);
- char* macro_key;
- char* macro_value;
+ char* muscle_key;
+ char* muscle_value;
/* Read key. */
if (!isalpha (ch) && ch != '_')
skip_to_char ('%');
return;
}
- copy_identifier (finput, ¯o_obstack);
- obstack_1grow (¯o_obstack, 0);
- macro_key = obstack_finish (¯o_obstack);
-
+ copy_identifier (finput, &muscle_obstack);
+ obstack_1grow (&muscle_obstack, 0);
+ muscle_key = obstack_finish (&muscle_obstack);
+
/* Read value. */
ch = skip_white_space ();
if (ch != '"')
else
fatal (_("Premature EOF after %s"), "\"");
}
- copy_string2 (finput, ¯o_obstack, '"', 0);
- obstack_1grow (¯o_obstack, 0);
- macro_value = obstack_finish (¯o_obstack);
+ copy_string2 (finput, &muscle_obstack, '"', 0);
+ obstack_1grow (&muscle_obstack, 0);
+ muscle_value = obstack_finish (&muscle_obstack);
/* Store the (key, value) pair in the environment. */
- macro_insert (macro_key, macro_value);
+ muscle_insert (muscle_key, muscle_value);
}
/* 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_macro_decl ();
+ parse_muscle_decl ();
break;
-
+
case tok_skel:
parse_skel_decl ();
break;
if (semantic_parser)
stack_offset = 0;
- sprintf (buf, "\ncase %d:\n", nrules);
- obstack_grow (&action_obstack, buf, strlen (buf));
+ obstack_fgrow1 (&action_obstack, "\ncase %d:\n", nrules);
if (!no_lines_flag)
{
- sprintf (buf, "#line %d %s\n",
- lineno, quotearg_style (c_quoting_style, infile));
- obstack_grow (&action_obstack, buf, strlen (buf));
+ obstack_fgrow2 (&action_obstack, muscle_find ("linef"),
+ lineno, quotearg_style (c_quoting_style,
+ muscle_find ("filename")));
}
obstack_1grow (&action_obstack, '{');
obstack_fgrow1 (&guard_obstack, "\ncase %d:\n", nrules);
if (!no_lines_flag)
- obstack_fgrow2 (&guard_obstack, "#line %d %s\n",
- lineno, quotearg_style (c_quoting_style, infile));
+ obstack_fgrow2 (&guard_obstack, muscle_find ("linef"),
+ lineno, quotearg_style (c_quoting_style,
+ muscle_find ("filename")));
obstack_1grow (&guard_obstack, '{');
count = 0;
if (nrules == 0)
fatal (_("no rules in the input grammar"));
-#if 0 /* This code is in the skeleton now. */
- /* JF put out same default YYSTYPE as YACC does */
- if (typed == 0
- && !value_components_used)
- {
- /* We used to use `unsigned long' as YYSTYPE on MSDOS,
- but it seems better to be consistent.
- Most programs should declare their own type anyway. */
- obstack_sgrow (&attrs_obstack,
- "#ifndef YYSTYPE\n#define YYSTYPE int\n#endif\n");
- if (defines_flag)
- obstack_sgrow (&defines_obstack, "\
-# ifndef YYSTYPE\n\
-# define YYSTYPE int\n\
-# endif\n");
- }
-#endif
-
/* Report any undefined symbols and consider them nonterminals. */
for (bp = firstsymbol; bp; bp = bp->next)
}
/* At the end of the grammar file, some C source code must
- be stored. It is going to be associated to the user_code
+ be stored. It is going to be associated to the epilogue
directive. */
static void
read_additionnal_code (void)
{
char c;
- struct obstack uc_obstack;
-
- obstack_init (&uc_obstack);
+ struct obstack el_obstack;
+
+ obstack_init (&el_obstack);
while ((c = getc (finput)) != EOF)
- obstack_1grow (&uc_obstack, c);
-
- obstack_1grow (&uc_obstack, 0);
- macro_insert ("user_code", obstack_finish (&uc_obstack));
+ obstack_1grow (&el_obstack, c);
+
+ obstack_1grow (&el_obstack, 0);
+ muscle_insert ("epilogue", obstack_finish (&el_obstack));
}
\f
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);
}
-
- /* obstack_1grow (oout, '\n'); */
}
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[] = "$";
- /* int lossage = 0; JF set but not used */
-
tags = XCALLOC (char *, nsyms + 1);
tags[0] = DOLLAR;
user_toknums = XCALLOC (short, nsyms + 1);
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);
- macro_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 (!no_parser_flag)
- output_token_defines (&table_obstack); */
+#if 0
+ if (!no_parser_flag)
+ output_token_defines (&table_obstack);
+#endif
if (startval->class == unknown_sym)
fatal (_("the start symbol %s is undefined"), startval->tag);
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 macro obstack. */
- obstack_init (¯o_obstack);
+ /* Initialize the muscle obstack. */
+ obstack_init (&muscle_obstack);
/* Initialize the symbol table. */
tabinit ();
TABLE_OBSTACK and FDEFINES file. Also notice any %token, %left,
etc. found there. */
read_declarations ();
- /* Start writing the guard and action files, if they are needed. */
-#if 0
- output_headers ();
-#endif
/* Read in the grammar, build grammar in list form. Write out
guards and actions. */
readgram ();
/* Some C code is given at the end of the grammar file. */
read_additionnal_code ();
+
/* Now we know whether we need the line-number stack. If we do,
- write its type into the .tab.h file. */
-#if 0
- if (defines_flag)
- reader_output_yylsp (&defines_obstack);
-#endif
- /* Write closing delimiters for actions and guards. */
-#if 0
- output_trailers ();
- if (locations_flag)
- obstack_sgrow (&table_obstack, "#define YYLSP_NEEDED 1\n\n");
-#endif
+ write its type into the .tab.h file.
+ This is no longer need with header skeleton. */
+
/* Assign the symbols their symbol numbers. Write #defines for the
token symbols into FDEFINES if requested. */
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