diff options
Diffstat (limited to 'lib/racc/parser.rb')
| -rw-r--r-- | lib/racc/parser.rb | 66 |
1 files changed, 26 insertions, 40 deletions
diff --git a/lib/racc/parser.rb b/lib/racc/parser.rb index 7d160f6c44..a7408dd00a 100644 --- a/lib/racc/parser.rb +++ b/lib/racc/parser.rb @@ -1,7 +1,7 @@ # -# parser.rb +# $originalId: parser.rb,v 1.8 2006/07/06 11:42:07 aamine Exp $ # -# Copyright (c) 1999-2003 Minero Aoki <aamine@loveruby.net> +# Copyright (c) 1999-2006 Minero Aoki # # This program is free software. # You can distribute/modify this program under the same terms of ruby. @@ -10,8 +10,6 @@ # into a Racc output file, you may use that output file # without restriction. # -# $raccId: parser.rb,v 1.4 2003/11/03 13:41:47 aamine Exp $ -# unless defined?(NotImplementedError) NotImplementedError = NotImplementError @@ -24,7 +22,6 @@ unless defined?(::ParseError) ParseError = Racc::ParseError end - module Racc unless defined?(Racc_No_Extentions) @@ -33,14 +30,14 @@ module Racc class Parser - Racc_Runtime_Version = '1.4.4' - Racc_Runtime_Revision = '$raccRevision: 1.4 $'.split[1] + Racc_Runtime_Version = '1.4.5' + Racc_Runtime_Revision = '$originalRevision: 1.8 $'.split[1] - Racc_Runtime_Core_Version_R = '1.4.4' - Racc_Runtime_Core_Revision_R = '$raccRevision: 1.4 $'.split[1] + Racc_Runtime_Core_Version_R = '1.4.5' + Racc_Runtime_Core_Revision_R = '$originalRevision: 1.8 $'.split[1] begin require 'racc/cparse' - # Racc_Runtime_Core_Version_C = (defined in extension) + # Racc_Runtime_Core_Version_C = (defined in extention) Racc_Runtime_Core_Revision_C = Racc_Runtime_Core_Id_C.split[2] unless new.respond_to?(:_racc_do_parse_c, true) raise LoadError, 'old cparse.so' @@ -106,7 +103,7 @@ module Racc raise NotImplementedError, "#{self.class}\#next_token is not defined" end - def _racc_do_parse_rb( arg, in_debug ) + def _racc_do_parse_rb(arg, in_debug) action_table, action_check, action_default, action_pointer, goto_table, goto_check, goto_default, goto_pointer, nt_base, reduce_table, token_table, shift_n, @@ -151,11 +148,11 @@ module Racc ### yyparse ### - def yyparse( recv, mid ) + def yyparse(recv, mid) __send__(Racc_YY_Parse_Method, recv, mid, _racc_setup(), true) end - def _racc_yyparse_rb( recv, mid, arg, c_debug ) + def _racc_yyparse_rb(recv, mid, arg, c_debug) action_table, action_check, action_default, action_pointer, goto_table, goto_check, goto_default, goto_pointer, nt_base, reduce_table, token_table, shift_n, @@ -174,7 +171,6 @@ module Racc end end recv.__send__(mid) do |tok, val| -# $stderr.puts "rd: tok=#{tok}, val=#{val}" unless tok @racc_t = 0 else @@ -188,12 +184,7 @@ module Racc act = action_table[i] and action_check[i] == @racc_state[-1] act = action_default[@racc_state[-1]] -# $stderr.puts "02: act=#{act}" -# $stderr.puts "curstate=#{@racc_state[-1]}" - else -# $stderr.puts "01: act=#{act}" end - while act = _racc_evalact(act, arg) ; end @@ -206,9 +197,6 @@ module Racc act = action_table[i] and action_check[i] == @racc_state[-1] act = action_default[@racc_state[-1]] -# $stderr.puts "04: act=#{act}" - else -# $stderr.puts "03: act=#{act}" end while act = _racc_evalact(act, arg) ; @@ -222,13 +210,12 @@ module Racc ### common ### - def _racc_evalact( act, arg ) -# $stderr.puts "ea: act=#{act}" + def _racc_evalact(act, arg) action_table, action_check, action_default, action_pointer, goto_table, goto_check, goto_default, goto_pointer, nt_base, reduce_table, token_table, shift_n, reduce_n, use_result, * = arg -nerr = 0 # tmp + nerr = 0 # tmp if act > 0 and act < shift_n # @@ -261,7 +248,7 @@ nerr = 0 # tmp when 2 # yyaccept return shift_n else - raise RuntimeError, '[Racc Bug] unknown jump code' + raise '[Racc Bug] unknown jump code' end end @@ -299,7 +286,6 @@ nerr = 0 # tmp break end end - throw :racc_end_parse, nil if @racc_state.size <= 1 @racc_state.pop @racc_vstack.pop @@ -311,7 +297,7 @@ nerr = 0 # tmp return act else - raise RuntimeError, "[Racc Bug] unknown action #{act.inspect}" + raise "[Racc Bug] unknown action #{act.inspect}" end racc_next_state(@racc_state[-1], @racc_state) if @yydebug @@ -319,7 +305,7 @@ nerr = 0 # tmp nil end - def _racc_do_reduce( arg, act ) + def _racc_do_reduce(arg, act) action_table, action_check, action_default, action_pointer, goto_table, goto_check, goto_default, goto_pointer, nt_base, reduce_table, token_table, shift_n, @@ -360,7 +346,7 @@ nerr = 0 # tmp goto_default[k1] end - def on_error( t, val, vstack ) + def on_error(t, val, vstack) raise ParseError, sprintf("\nparse error on value %s (%s)", val.inspect, token_to_str(t) || '?') end @@ -381,20 +367,20 @@ nerr = 0 # tmp # for debugging output # - def racc_read_token( t, tok, val ) + def racc_read_token(t, tok, val) @racc_debug_out.print 'read ' @racc_debug_out.print tok.inspect, '(', racc_token2str(t), ') ' @racc_debug_out.puts val.inspect @racc_debug_out.puts end - def racc_shift( tok, tstack, vstack ) + def racc_shift(tok, tstack, vstack) @racc_debug_out.puts "shift #{racc_token2str tok}" racc_print_stacks tstack, vstack @racc_debug_out.puts end - def racc_reduce( toks, sim, tstack, vstack ) + def racc_reduce(toks, sim, tstack, vstack) out = @racc_debug_out out.print 'reduce ' if toks.empty? @@ -413,20 +399,20 @@ nerr = 0 # tmp @racc_debug_out.puts end - def racc_e_pop( state, tstack, vstack ) + def racc_e_pop(state, tstack, vstack) @racc_debug_out.puts 'error recovering mode: pop token' racc_print_states state racc_print_stacks tstack, vstack @racc_debug_out.puts end - def racc_next_state( curstate, state ) + def racc_next_state(curstate, state) @racc_debug_out.puts "goto #{curstate}" racc_print_states state @racc_debug_out.puts end - def racc_print_stacks( t, v ) + def racc_print_stacks(t, v) out = @racc_debug_out out.print ' [' t.each_index do |i| @@ -435,19 +421,19 @@ nerr = 0 # tmp out.puts ' ]' end - def racc_print_states( s ) + def racc_print_states(s) out = @racc_debug_out out.print ' [' s.each {|st| out.print ' ', st } out.puts ' ]' end - def racc_token2str( tok ) + def racc_token2str(tok) self.class::Racc_token_to_s_table[tok] or - raise RuntimeError, "[Racc Bug] can't convert token #{tok} to string" + raise "[Racc Bug] can't convert token #{tok} to string" end - def token_to_str( t ) + def token_to_str(t) self.class::Racc_token_to_s_table[t] end |