X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/31984206a710101776d1db64009aff6c7962551c..24bb5f8fb7f14df4050cbefd27ae60fa9cef259d:/src/main.c?ds=sidebyside diff --git a/src/main.c b/src/main.c index 2b308298..3dbac3a9 100644 --- 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 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. @@ -28,6 +28,7 @@ #include #include "LR0.h" +#include "closeout.h" #include "complain.h" #include "conflicts.h" #include "derives.h" @@ -35,7 +36,8 @@ #include "getargs.h" #include "gram.h" #include "lalr.h" -#include "muscle_tab.h" +#include "ielr.h" +#include "muscle-tab.h" #include "nullable.h" #include "output.h" #include "print.h" @@ -61,7 +63,10 @@ main (int argc, char *argv[]) (void) bindtextdomain ("bison-runtime", LOCALEDIR); (void) textdomain (PACKAGE); + atexit (close_stdout); + uniqstrs_new (); + muscle_init (); getargs (argc, argv); @@ -72,8 +77,6 @@ main (int argc, char *argv[]) if (trace_flag & trace_bitsets) bitset_stats_enable (); - 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 the grammar; see gram.h. */ @@ -97,16 +100,15 @@ 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 @@ -114,8 +116,7 @@ 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; @@ -132,8 +133,8 @@ main (int argc, char *argv[]) tables_generate (); timevar_pop (TV_ACTIONS); - grammar_rules_never_reduced_report - (_("rule never reduced because of conflicts")); + grammar_rules_useless_report + (_("rule useless in parser due to conflicts")); /* Output file names. */ compute_output_file_names ();