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* src/derives.h: New file.

Browse Source 
* src/main.c, src/derives.h: Use it.
Formatting changes.
* src/Makefile.am (noinst_HEADERS): Adjust.
This commit is contained in:
Akim Demaille
2000-09-20 13:14:11 +00:00
parent db5b3a89b4
commit cc84fd5dc7
12 changed files with 158 additions and 133 deletions
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88
src/main.c
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@@ -24,8 +24,9 @@
#include "getargs.h"
#include "files.h"
#include "complain.h"
#include "derives.h"
#if 0 /* XXX currently unused. */
#if 0 /* XXX currently unused. */
/* Nonzero means failure has been detected; don't write a parser file. */
static int failure;
#endif
@@ -33,23 +34,21 @@ static int failure;
/* The name this program was run with, for messages. */
char *program_name;
extern char *printable_version PARAMS((int));
extern void berror PARAMS((const char *));
extern char *printable_version PARAMS ((int));
extern void berror PARAMS ((const char *));
extern void openfiles PARAMS((void));
extern void reader PARAMS((void));
extern void reduce_grammar PARAMS((void));
extern void set_derives PARAMS((void));
extern void free_derives PARAMS((void));
extern void set_nullable PARAMS((void));
extern void free_nullable PARAMS((void));
extern void generate_states PARAMS((void));
extern void lalr PARAMS((void));
extern void initialize_conflicts PARAMS((void));
extern void finalize_conflicts PARAMS((void));
extern void verbose PARAMS((void));
extern void terse PARAMS((void));
extern void output PARAMS((void));
extern void openfiles PARAMS ((void));
extern void reader PARAMS ((void));
extern void reduce_grammar PARAMS ((void));
extern void set_nullable PARAMS ((void));
extern void free_nullable PARAMS ((void));
extern void generate_states PARAMS ((void));
extern void lalr PARAMS ((void));
extern void initialize_conflicts PARAMS ((void));
extern void finalize_conflicts PARAMS ((void));
extern void verbose PARAMS ((void));
extern void terse PARAMS ((void));
extern void output PARAMS ((void));
/* VMS complained about using `int'. */
@@ -63,59 +62,58 @@ main (int argc, char *argv[])
textdomain (PACKAGE);
lineno = 0;
getargs(argc, argv);
getargs (argc, argv);
/* Be ready to clean up if we exit.*/
/* Be ready to clean up if we exit. */
atexit (done);
openfiles();
openfiles ();
/* read the input. Copy some parts of it to fguard, faction, ftable and fattrs.
In file reader.c.
The other parts are recorded in the grammar; see gram.h. */
/* Read the input. Copy some parts of it to FGUARD, FACTION, FTABLE
and FATTRS. In file reader.c. The other parts are recorded in
the grammar; see gram.h. */
reader ();
if (complain_message_count)
exit (1);
/* find useless nonterminals and productions and reduce the grammar. In
file reduce.c */
reduce_grammar();
reduce_grammar ();
/* record other info about the grammar. In files derives and nullable. */
set_derives();
set_nullable();
set_derives ();
set_nullable ();
/* convert to nondeterministic finite state machine. In file LR0.
See state.h for more info. */
generate_states();
generate_states ();
/* make it deterministic. In file lalr. */
lalr();
lalr ();
/* Find and record any conflicts: places where one token of lookahead is not
enough to disambiguate the parsing. In file conflicts.
Also resolve s/r conflicts based on precedence declarations. */
initialize_conflicts();
/* Find and record any conflicts: places where one token of
lookahead is not enough to disambiguate the parsing. In file
conflicts. Also resolve s/r conflicts based on precedence
declarations. */
initialize_conflicts ();
/* print information about results, if requested. In file print. */
/* Print information about results, if requested. In file print.
*/
if (verboseflag)
verbose();
verbose ();
else
terse();
terse ();
/* output the tables and the parser to ftable. In file output. */
output();
/* Output the tables and the parser to ftable. In file output. */
output ();
finalize_conflicts();
free_nullable();
free_derives();
finalize_conflicts ();
free_nullable ();
free_derives ();
exit (complain_message_count ? 1 : 0);
}
/* functions to report errors which prevent a parser from being generated */
/* Return a string containing a printable version of C:
either C itself, or the corresponding \DDD code. */
@@ -124,7 +122,7 @@ printable_version (int c)
{
static char buf[10];
if (c < ' ' || c >= '\177')
sprintf(buf, "\\%o", c);
sprintf (buf, "\\%o", c);
else
{
buf[0] = c;
@@ -139,5 +137,5 @@ void
berror (const char *s)
{
fprintf (stderr, _("%s: internal error: %s\n"), program_name, s);
abort();
abort ();
}