Update TODO.

[bison.git] / src / main.c

diff --git a/src/main.c b/src/main.c
index eaa85596258219aedcadfc7ac37ab775ff4a2e4b..8070446683212b4a47598e89431979d34588d70f 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.


@@ -33,14 +33,16 @@
 #include "print.h"
 #include "LR0.h"
 #include "conflicts.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;
 
 extern void berror PARAMS((const char *));
 
 
 /* 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[])
 {


@@ -52,9 +54,7 @@ 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);
-
+  muscle_init ();

   open_files ();
 
   /* Read the input.  Copy some parts of it to FGUARD, FACTION, FTABLE
   open_files ();
 
   /* Read the input.  Copy some parts of it to FGUARD, FACTION, FTABLE


@@ -64,15 +64,16 @@ 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.
+     In file reduce.c.  */

   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 ();
 


@@ -83,38 +84,50 @@ 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 ();
+
+  /* Stop if there were errors, to avoid trashing previous output
+     files.  */
+  if (complain_message_count)
+    exit (1);

 
 

-  /* Print information about results, if requested.  */
+  /* Output the detailed report on the grammar.  */

   print_results ();
 
   print_results ();
 

+  /* Output the VCG graph.  */
+  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 ();
+  /* Close the input files. */
+  close_files ();
+
+  /* Free the symbol table data structure.  */
+  free_symtab ();
+
+  lex_free ();
+
+  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.  */
+  output_files ();

 
 

-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;
-}
+  /* 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

 
 

+  return complain_message_count ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+\f

 /* Abort for an internal error denoted by string S.  */
 
 void
 /* Abort for an internal error denoted by string S.  */
 
 void