Merge remote-tracking branch 'origin/maint'

[bison.git] / src / main.c

diff --git a/src/main.c b/src/main.c
index d7a7f65f8b284454d6313de9399176a8515ec9f8..093e9cb26674aeb0502b16e892f2c2906ae97e43 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -1,7 +1,7 @@
 /* Top level entry point of Bison.
 
-   Copyright (C) 1984, 1986, 1989, 1992, 1995, 2000, 2001, 2002, 2004,
-   2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 1992, 1995, 2000-2002, 2004-2012 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -24,10 +24,12 @@
 #include <bitset_stats.h>
 #include <bitset.h>
 #include <configmake.h>
+#include <progname.h>
 #include <quotearg.h>
 #include <timevar.h>
 
 #include "LR0.h"
+#include "closeout.h"
 #include "complain.h"
 #include "conflicts.h"
 #include "derives.h"
@@ -35,12 +37,14 @@
 #include "getargs.h"
 #include "gram.h"
 #include "lalr.h"
+#include "ielr.h"
 #include "muscle-tab.h"
 #include "nullable.h"
 #include "output.h"
 #include "print.h"
 #include "print_graph.h"
 #include "print-xml.h"
+#include <quote.h>
 #include "reader.h"
 #include "reduce.h"
 #include "scan-code.h"
@@ -51,16 +55,25 @@
 #include "uniqstr.h"
 
 
-
 int
 main (int argc, char *argv[])
 {
-  program_name = argv[0];
+  set_program_name (argv[0]);
   setlocale (LC_ALL, "");
   (void) bindtextdomain (PACKAGE, LOCALEDIR);
   (void) bindtextdomain ("bison-runtime", LOCALEDIR);
   (void) textdomain (PACKAGE);
 
+  {
+    char const *cp = getenv ("LC_CTYPE");
+    if (cp && STREQ (cp, "C"))
+      set_custom_quoting (&quote_quoting_options, "'", "'");
+    else
+      set_quoting_style (&quote_quoting_options, locale_quoting_style);
+  }
+
+  atexit (close_stdout);
+
   uniqstrs_new ();
   muscle_init ();
 
@@ -96,16 +109,15 @@ main (int argc, char *argv[])
   nullable_compute ();
   timevar_pop (TV_SETS);
 
-  /* Convert to nondeterministic finite state machine.  In file LR0.
-     See state.h for more info.  */
+  /* Compute LR(0) parser states.  See state.h for more info.  */
   timevar_push (TV_LR0);
   generate_states ();
   timevar_pop (TV_LR0);
 
-  /* make it deterministic.  In file lalr.  */
-  timevar_push (TV_LALR);
-  lalr ();
-  timevar_pop (TV_LALR);
+  /* Add lookahead sets to parser states.  Except when LALR(1) is
+     requested, split states to eliminate LR(1)-relative
+     inadequacies.  */
+  ielr ();
 
   /* Find and record any conflicts: places where one token of
      lookahead is not enough to disambiguate the parsing.  In file
@@ -113,8 +125,7 @@ main (int argc, char *argv[])
      declarations.  */
   timevar_push (TV_CONFLICTS);
   conflicts_solve ();
-  muscle_percent_define_default ("lr.keep_unreachable_states", "false");
-  if (!muscle_percent_define_flag_if ("lr.keep_unreachable_states"))
+  if (!muscle_percent_define_flag_if ("lr.keep-unreachable-states"))
     {
       state_number *old_to_new = xnmalloc (nstates, sizeof *old_to_new);
       state_number nstates_old = nstates;
@@ -131,8 +142,7 @@ main (int argc, char *argv[])
   tables_generate ();
   timevar_pop (TV_ACTIONS);
 
-  grammar_rules_useless_report
-    (_("rule useless in parser due to conflicts"));
+  grammar_rules_useless_report (_("rule useless in parser due to conflicts"));
 
   /* Output file names. */
   compute_output_file_names ();