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[bison.git] / src / main.c

diff --git a/src/main.c b/src/main.c
index 6b07e2097d936f82378d45ba769bf9f6bb77e827..55dca624c4579f45b4372745ffde7fa592ee4425 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -1,5 +1,5 @@
 /* Top level entry point of bison,
 /* Top level entry point of bison,

-   Copyright (C) 1984, 1986, 1989, 1992, 1995, 2000
+   Copyright 1984, 1986, 1989, 1992, 1995, 2000, 2001

    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.


@@ -32,14 +32,15 @@
 #include "nullable.h"
 #include "print.h"
 #include "LR0.h"
 #include "nullable.h"
 #include "print.h"
 #include "LR0.h"

+#include "conflicts.h"
+#include "print_graph.h"
+#include "muscle_tab.h"
+#include "symtab.h"
+#include "lex.h"

 
 /* The name this program was run with, for messages.  */
 char *program_name;
 
 
 /* The name this program was run with, for messages.  */
 char *program_name;
 

-extern void berror PARAMS((const char *));
-
-extern char *printable_version PARAMS ((int));
-

 int
 main (int argc, char *argv[])
 {
 int
 main (int argc, char *argv[])
 {


@@ -51,10 +52,7 @@ main (int argc, char *argv[])
   lineno = 0;
   getargs (argc, argv);
 
   lineno = 0;
   getargs (argc, argv);
 

-  /* Be ready to clean up if we exit. */
-  atexit (done);
-
-  open_files ();
+  muscle_init ();

 
   /* Read the input.  Copy some parts of it to FGUARD, FACTION, FTABLE
      and FATTRS.  In file reader.c.  The other parts are recorded in
 
   /* Read the input.  Copy some parts of it to FGUARD, FACTION, FTABLE
      and FATTRS.  In file reader.c.  The other parts are recorded in


@@ -63,15 +61,15 @@ main (int argc, char *argv[])
   if (complain_message_count)
     exit (1);
 
   if (complain_message_count)
     exit (1);
 

-  /* find useless nonterminals and productions and reduce the grammar.  In
-     file reduce.c */
+  /* Find useless nonterminals and productions and reduce the grammar. */

   reduce_grammar ();
 
   reduce_grammar ();
 

-  /* record other info about the grammar.  In files derives and nullable.  */
+  /* 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.
+  /* Convert to nondeterministic finite state machine.  In file LR0.

      See state.h for more info.  */
   generate_states ();
 
      See state.h for more info.  */
   generate_states ();
 


@@ -82,43 +80,41 @@ main (int argc, char *argv[])
      lookahead is not enough to disambiguate the parsing.  In file
      conflicts.  Also resolve s/r conflicts based on precedence
      declarations.  */
      lookahead is not enough to disambiguate the parsing.  In file
      conflicts.  Also resolve s/r conflicts based on precedence
      declarations.  */

-  initialize_conflicts ();
+  solve_conflicts ();
+  conflicts_print ();
+
+  /* Output file names. */
+  compute_output_file_names ();
+
+  /* Output the detailed report on the grammar.  */
+  if (verbose_flag)
+    print_results ();
+
+  /* Stop if there were errors, to avoid trashing previous output
+     files.  */
+  if (complain_message_count)
+    exit (1);

 
 

-  /* Print information about results, if requested.  */
-  print_results ();
+  /* Output the VCG graph.  */
+  if (graph_flag)
+    print_graph ();

 
   /* 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 the symbol table data structure.  */
+  free_symtab ();
+
+  reduce_free ();
+  free_conflicts ();

   free_nullable ();
   free_derives ();
 
   free_nullable ();
   free_derives ();
 

-  exit (complain_message_count ? 1 : 0);
-}
-\f
-/* Return a string containing a printable version of C:
-   either C itself, or the corresponding \DDD code.  */
+  /* If using alloca.c, flush the alloca'ed memory for the benefit of
+     people running Bison as a library in IDEs.  */
+#if C_ALLOCA
+    alloca (0);
+#endif

 
 

-char *
-printable_version (int c)
-{
-  static char buf[10];
-  if (c < ' ' || c >= '\177')
-    sprintf (buf, "\\%o", c);
-  else
-    {
-      buf[0] = c;
-      buf[1] = '\0';
-    }
-  return buf;
-}
-
-/* Abort for an internal error denoted by string S.  */
-
-void
-berror (const char *s)
-{
-  fprintf (stderr, _("%s: internal error: %s\n"), program_name, s);
-  abort ();
+  return complain_message_count ? EXIT_FAILURE : EXIT_SUCCESS;

 }
 }