xref: /external/antlr/antlr-3.4/runtime/Ruby/lib/antlr3/template/group-file-parser.rb

#!/usr/bin/env ruby
#
# GroupFile.g
# 
# Generated using ANTLR version: 3.2.1-SNAPSHOT Jun 18, 2010 05:38:11
# Ruby runtime library version: 1.7.5
# Input grammar file: GroupFile.g
# Generated at: 2010-07-03 23:15:35
# 

# ~~~> start load path setup
this_directory = File.expand_path( File.dirname( __FILE__ ) )
$LOAD_PATH.unshift( this_directory ) unless $LOAD_PATH.include?( this_directory )

antlr_load_failed = proc do
  load_path = $LOAD_PATH.map { |dir| '  - ' << dir }.join( $/ )
  raise LoadError, <<-END.strip!
  
Failed to load the ANTLR3 runtime library (version 1.7.5):

Ensure the library has been installed on your system and is available
on the load path. If rubygems is available on your system, this can
be done with the command:
  
  gem install antlr3

Current load path:
#{ load_path }

  END
end

defined?( ANTLR3 ) or begin
  
  # 1: try to load the ruby antlr3 runtime library from the system path
  require 'antlr3'
  
rescue LoadError
  
  # 2: try to load rubygems if it isn't already loaded
  defined?( Gem ) or begin
    require 'rubygems'
  rescue LoadError
    antlr_load_failed.call
  end
  
  # 3: try to activate the antlr3 gem
  begin
    Gem.activate( 'antlr3', '~> 1.7.5' )
  rescue Gem::LoadError
    antlr_load_failed.call
  end
  
  require 'antlr3'
  
end
# <~~~ end load path setup

# - - - - - - begin action @parser::header - - - - - -
# GroupFile.g


module ANTLR3
module Template

# - - - - - - end action @parser::header - - - - - - -


module GroupFile
  # TokenData defines all of the token type integer values
  # as constants, which will be included in all 
  # ANTLR-generated recognizers.
  const_defined?( :TokenData ) or TokenData = ANTLR3::TokenScheme.new

  module TokenData

    # define the token constants
    define_tokens( :ID => 5, :EOF => -1, :T__19 => 19, :T__16 => 16, :WS => 9, 
                   :T__15 => 15, :T__18 => 18, :T__17 => 17, :T__12 => 12, 
                   :TEMPLATE => 6, :T__11 => 11, :T__14 => 14, :T__13 => 13, 
                   :T__10 => 10, :CONSTANT => 4, :COMMENT => 8, :STRING => 7 )

    # register the proper human-readable name or literal value
    # for each token type
    #
    # this is necessary because anonymous tokens, which are
    # created from literal values in the grammar, do not
    # have descriptive names
    register_names( "CONSTANT", "ID", "TEMPLATE", "STRING", "COMMENT", "WS", 
                    "'group'", "'::'", "';'", "'::='", "'('", "')'", "','", 
                    "'*'", "'&'", "'='" )
    
  end


  class Parser < ANTLR3::Parser
    @grammar_home = GroupFile

    RULE_METHODS = [ :group_spec, :group_name, :member, :parameter_declaration, 
                     :parameters, :parameter ].freeze


    include TokenData

    begin
      generated_using( "GroupFile.g", "3.2.1-SNAPSHOT Jun 18, 2010 05:38:11", "1.7.5" )
    rescue NoMethodError => error
      # ignore
    end

    def initialize( input, options = {} )
      super( input, options )


    end

      def fetch_group( namespace, name )
        if namespace.const_defined?( name )
          group = namespace.const_get( name )
          unless group.is_a?( ANTLR3::Template::Group )
          
          end
        else
          group = ANTLR3::Template::Group.new
          namespace.const_set( name, group )
        end
        return( group )
      end
      
      def unescape( text )
        text.gsub( /\\(?:([abefnrstv])|([0-7]{3})|x([0-9a-fA-F]{2})|(.))/ ) do
          if $1
            case $1[ 0 ]
            when ?a then "\a"
            when ?b then "\b"
            when ?e then "\e"
            when ?f then "\f"
            when ?n then "\n"
            when ?r then "\r"
            when ?s then "\s"
            when ?t then "\t"
            when ?v then "\v"
            end
          elsif $2 then $2.to_i( 8 ).chr
          elsif $3 then $3.to_i( 16 ).chr
          elsif $4 then $4
          end
        end
      end
      
      def extract_template( token )
        case token.type
        when TEMPLATE
          token.text.gsub( /\A<<<\r?\n?|\r?\n?>>>\Z/, '' )
        when STRING
          unescape( token.text[ 1...-1 ] )
        end
      end
      
      def group( namespace = ::Object )
        group_spec( namespace )
      end

    # - - - - - - - - - - - - Rules - - - - - - - - - - - - -

    # 
    # parser rule group_spec
    # 
    # (in GroupFile.g)
    # 79:1: group_spec[ namespace ] returns [ group ] : ( group_name[ $namespace ] | ) ( member[ $group ] )* ;
    # 
    def group_spec( namespace )
      # -> uncomment the next line to manually enable rule tracing
      # trace_in( __method__, 1 )
      group = nil
      group_name1 = nil

      begin
        # at line 80:5: ( group_name[ $namespace ] | ) ( member[ $group ] )*
        # at line 80:5: ( group_name[ $namespace ] | )
        alt_1 = 2
        look_1_0 = @input.peek( 1 )

        if ( look_1_0 == T__10 )
          alt_1 = 1
        elsif ( look_1_0 == EOF || look_1_0 == ID )
          alt_1 = 2
        else
          raise NoViableAlternative( "", 1, 0 )
        end
        case alt_1
        when 1
          # at line 80:7: group_name[ $namespace ]
          @state.following.push( TOKENS_FOLLOWING_group_name_IN_group_spec_85 )
          group_name1 = group_name( namespace )
          @state.following.pop
          # --> action
           group = group_name1 
          # <-- action

        when 2
          # at line 81:7: 
          # --> action
           group = ANTLR3::Template::Group.new 
          # <-- action

        end
        # at line 83:5: ( member[ $group ] )*
        while true # decision 2
          alt_2 = 2
          look_2_0 = @input.peek( 1 )

          if ( look_2_0 == ID )
            alt_2 = 1

          end
          case alt_2
          when 1
            # at line 83:5: member[ $group ]
            @state.following.push( TOKENS_FOLLOWING_member_IN_group_spec_108 )
            member( group )
            @state.following.pop

          else
            break # out of loop for decision 2
          end
        end # loop for decision 2

      rescue ANTLR3::Error::RecognitionError => re
        report_error( re )
        recover( re )

      ensure
        # -> uncomment the next line to manually enable rule tracing
        # trace_out( __method__, 1 )

      end
      
      return group
    end


    # 
    # parser rule group_name
    # 
    # (in GroupFile.g)
    # 86:1: group_name[ namespace ] returns [ group ] : 'group' (mod= CONSTANT '::' )* name= CONSTANT ( ';' )? ;
    # 
    def group_name( namespace )
      # -> uncomment the next line to manually enable rule tracing
      # trace_in( __method__, 2 )
      group = nil
      mod = nil
      name = nil

      begin
        # at line 87:5: 'group' (mod= CONSTANT '::' )* name= CONSTANT ( ';' )?
        match( T__10, TOKENS_FOLLOWING_T__10_IN_group_name_128 )
        # at line 88:5: (mod= CONSTANT '::' )*
        while true # decision 3
          alt_3 = 2
          look_3_0 = @input.peek( 1 )

          if ( look_3_0 == CONSTANT )
            look_3_1 = @input.peek( 2 )

            if ( look_3_1 == T__11 )
              alt_3 = 1

            end

          end
          case alt_3
          when 1
            # at line 89:7: mod= CONSTANT '::'
            mod = match( CONSTANT, TOKENS_FOLLOWING_CONSTANT_IN_group_name_144 )
            match( T__11, TOKENS_FOLLOWING_T__11_IN_group_name_146 )
            # --> action
             namespace = namespace.const_get( mod.text ) 
            # <-- action

          else
            break # out of loop for decision 3
          end
        end # loop for decision 3
        name = match( CONSTANT, TOKENS_FOLLOWING_CONSTANT_IN_group_name_169 )
        # --> action
         group = fetch_group( namespace, name.text ) 
        # <-- action
        # at line 93:5: ( ';' )?
        alt_4 = 2
        look_4_0 = @input.peek( 1 )

        if ( look_4_0 == T__12 )
          alt_4 = 1
        end
        case alt_4
        when 1
          # at line 93:5: ';'
          match( T__12, TOKENS_FOLLOWING_T__12_IN_group_name_177 )

        end

      rescue ANTLR3::Error::RecognitionError => re
        report_error( re )
        recover( re )

      ensure
        # -> uncomment the next line to manually enable rule tracing
        # trace_out( __method__, 2 )

      end
      
      return group
    end


    # 
    # parser rule member
    # 
    # (in GroupFile.g)
    # 96:1: member[ group ] : name= ID ( parameter_declaration )? '::=' (aliased= ID | TEMPLATE | STRING ) ;
    # 
    def member( group )
      # -> uncomment the next line to manually enable rule tracing
      # trace_in( __method__, 3 )
      name = nil
      aliased = nil
      __TEMPLATE3__ = nil
      __STRING4__ = nil
      parameter_declaration2 = nil
      # - - - - @init action - - - -
       params = nil 

      begin
        # at line 98:5: name= ID ( parameter_declaration )? '::=' (aliased= ID | TEMPLATE | STRING )
        name = match( ID, TOKENS_FOLLOWING_ID_IN_member_199 )
        # at line 98:13: ( parameter_declaration )?
        alt_5 = 2
        look_5_0 = @input.peek( 1 )

        if ( look_5_0 == ID || look_5_0 == T__14 || look_5_0.between?( T__17, T__18 ) )
          alt_5 = 1
        end
        case alt_5
        when 1
          # at line 98:15: parameter_declaration
          @state.following.push( TOKENS_FOLLOWING_parameter_declaration_IN_member_203 )
          parameter_declaration2 = parameter_declaration
          @state.following.pop
          # --> action
           params = parameter_declaration2 
          # <-- action

        end
        match( T__13, TOKENS_FOLLOWING_T__13_IN_member_210 )
        # at line 99:5: (aliased= ID | TEMPLATE | STRING )
        alt_6 = 3
        case look_6 = @input.peek( 1 )
        when ID then alt_6 = 1
        when TEMPLATE then alt_6 = 2
        when STRING then alt_6 = 3
        else
          raise NoViableAlternative( "", 6, 0 )
        end
        case alt_6
        when 1
          # at line 99:7: aliased= ID
          aliased = match( ID, TOKENS_FOLLOWING_ID_IN_member_220 )
          # --> action
           group.alias_template( name.text, aliased.text ) 
          # <-- action

        when 2
          # at line 100:7: TEMPLATE
          __TEMPLATE3__ = match( TEMPLATE, TOKENS_FOLLOWING_TEMPLATE_IN_member_230 )
          # --> action
           group.define_template( name.text, extract_template( __TEMPLATE3__ ), params ) 
          # <-- action

        when 3
          # at line 101:7: STRING
          __STRING4__ = match( STRING, TOKENS_FOLLOWING_STRING_IN_member_242 )
          # --> action
           group.define_template( name.text, extract_template( __STRING4__ ), params ) 
          # <-- action

        end

      rescue ANTLR3::Error::RecognitionError => re
        report_error( re )
        recover( re )

      ensure
        # -> uncomment the next line to manually enable rule tracing
        # trace_out( __method__, 3 )

      end
      
      return 
    end


    # 
    # parser rule parameter_declaration
    # 
    # (in GroupFile.g)
    # 105:1: parameter_declaration returns [ list ] : ( '(' ( parameters )? ')' | parameters );
    # 
    def parameter_declaration
      # -> uncomment the next line to manually enable rule tracing
      # trace_in( __method__, 4 )
      list = nil
      parameters5 = nil
      parameters6 = nil
      # - - - - @init action - - - -
       list = nil 

      begin
        # at line 107:3: ( '(' ( parameters )? ')' | parameters )
        alt_8 = 2
        look_8_0 = @input.peek( 1 )

        if ( look_8_0 == T__14 )
          alt_8 = 1
        elsif ( look_8_0 == ID || look_8_0.between?( T__17, T__18 ) )
          alt_8 = 2
        else
          raise NoViableAlternative( "", 8, 0 )
        end
        case alt_8
        when 1
          # at line 107:5: '(' ( parameters )? ')'
          match( T__14, TOKENS_FOLLOWING_T__14_IN_parameter_declaration_276 )
          # at line 107:9: ( parameters )?
          alt_7 = 2
          look_7_0 = @input.peek( 1 )

          if ( look_7_0 == ID || look_7_0.between?( T__17, T__18 ) )
            alt_7 = 1
          end
          case alt_7
          when 1
            # at line 107:11: parameters
            @state.following.push( TOKENS_FOLLOWING_parameters_IN_parameter_declaration_280 )
            parameters5 = parameters
            @state.following.pop
            # --> action
             list = parameters5 
            # <-- action

          end
          match( T__15, TOKENS_FOLLOWING_T__15_IN_parameter_declaration_287 )

        when 2
          # at line 108:5: parameters
          @state.following.push( TOKENS_FOLLOWING_parameters_IN_parameter_declaration_293 )
          parameters6 = parameters
          @state.following.pop
          # --> action
           list = parameters6 
          # <-- action

        end
      rescue ANTLR3::Error::RecognitionError => re
        report_error( re )
        recover( re )

      ensure
        # -> uncomment the next line to manually enable rule tracing
        # trace_out( __method__, 4 )

      end
      
      return list
    end


    # 
    # parser rule parameters
    # 
    # (in GroupFile.g)
    # 111:1: parameters returns [ list ] : parameter[ $list ] ( ',' parameter[ $list ] )* ;
    # 
    def parameters
      # -> uncomment the next line to manually enable rule tracing
      # trace_in( __method__, 5 )
      list = nil
      # - - - - @init action - - - -
       list = ANTLR3::Template::ParameterList.new 

      begin
        # at line 113:5: parameter[ $list ] ( ',' parameter[ $list ] )*
        @state.following.push( TOKENS_FOLLOWING_parameter_IN_parameters_317 )
        parameter( list )
        @state.following.pop
        # at line 113:24: ( ',' parameter[ $list ] )*
        while true # decision 9
          alt_9 = 2
          look_9_0 = @input.peek( 1 )

          if ( look_9_0 == T__16 )
            alt_9 = 1

          end
          case alt_9
          when 1
            # at line 113:26: ',' parameter[ $list ]
            match( T__16, TOKENS_FOLLOWING_T__16_IN_parameters_322 )
            @state.following.push( TOKENS_FOLLOWING_parameter_IN_parameters_324 )
            parameter( list )
            @state.following.pop

          else
            break # out of loop for decision 9
          end
        end # loop for decision 9

      rescue ANTLR3::Error::RecognitionError => re
        report_error( re )
        recover( re )

      ensure
        # -> uncomment the next line to manually enable rule tracing
        # trace_out( __method__, 5 )

      end
      
      return list
    end


    # 
    # parser rule parameter
    # 
    # (in GroupFile.g)
    # 116:1: parameter[ parameters ] : ( '*' name= ID | '&' name= ID | name= ID ( '=' v= STRING )? );
    # 
    def parameter( parameters )
      # -> uncomment the next line to manually enable rule tracing
      # trace_in( __method__, 6 )
      name = nil
      v = nil

      begin
        # at line 117:3: ( '*' name= ID | '&' name= ID | name= ID ( '=' v= STRING )? )
        alt_11 = 3
        case look_11 = @input.peek( 1 )
        when T__17 then alt_11 = 1
        when T__18 then alt_11 = 2
        when ID then alt_11 = 3
        else
          raise NoViableAlternative( "", 11, 0 )
        end
        case alt_11
        when 1
          # at line 117:5: '*' name= ID
          match( T__17, TOKENS_FOLLOWING_T__17_IN_parameter_342 )
          name = match( ID, TOKENS_FOLLOWING_ID_IN_parameter_346 )
          # --> action
           parameters.splat = name.text 
          # <-- action

        when 2
          # at line 118:5: '&' name= ID
          match( T__18, TOKENS_FOLLOWING_T__18_IN_parameter_354 )
          name = match( ID, TOKENS_FOLLOWING_ID_IN_parameter_358 )
          # --> action
           parameters.block = name.text 
          # <-- action

        when 3
          # at line 119:5: name= ID ( '=' v= STRING )?
          name = match( ID, TOKENS_FOLLOWING_ID_IN_parameter_368 )
          # --> action
           param = ANTLR3::Template::Parameter.new( name.text ) 
          # <-- action
          # at line 120:5: ( '=' v= STRING )?
          alt_10 = 2
          look_10_0 = @input.peek( 1 )

          if ( look_10_0 == T__19 )
            alt_10 = 1
          end
          case alt_10
          when 1
            # at line 120:7: '=' v= STRING
            match( T__19, TOKENS_FOLLOWING_T__19_IN_parameter_382 )
            v = match( STRING, TOKENS_FOLLOWING_STRING_IN_parameter_386 )
            # --> action
             param.default = v.text 
            # <-- action

          end
          # --> action
           parameters.add( param ) 
          # <-- action

        end
      rescue ANTLR3::Error::RecognitionError => re
        report_error( re )
        recover( re )

      ensure
        # -> uncomment the next line to manually enable rule tracing
        # trace_out( __method__, 6 )

      end
      
      return 
    end



    TOKENS_FOLLOWING_group_name_IN_group_spec_85 = Set[ 1, 5 ]
    TOKENS_FOLLOWING_member_IN_group_spec_108 = Set[ 1, 5 ]
    TOKENS_FOLLOWING_T__10_IN_group_name_128 = Set[ 4 ]
    TOKENS_FOLLOWING_CONSTANT_IN_group_name_144 = Set[ 11 ]
    TOKENS_FOLLOWING_T__11_IN_group_name_146 = Set[ 4 ]
    TOKENS_FOLLOWING_CONSTANT_IN_group_name_169 = Set[ 1, 12 ]
    TOKENS_FOLLOWING_T__12_IN_group_name_177 = Set[ 1 ]
    TOKENS_FOLLOWING_ID_IN_member_199 = Set[ 5, 13, 14, 17, 18 ]
    TOKENS_FOLLOWING_parameter_declaration_IN_member_203 = Set[ 13 ]
    TOKENS_FOLLOWING_T__13_IN_member_210 = Set[ 5, 6, 7 ]
    TOKENS_FOLLOWING_ID_IN_member_220 = Set[ 1 ]
    TOKENS_FOLLOWING_TEMPLATE_IN_member_230 = Set[ 1 ]
    TOKENS_FOLLOWING_STRING_IN_member_242 = Set[ 1 ]
    TOKENS_FOLLOWING_T__14_IN_parameter_declaration_276 = Set[ 5, 14, 15, 17, 18 ]
    TOKENS_FOLLOWING_parameters_IN_parameter_declaration_280 = Set[ 15 ]
    TOKENS_FOLLOWING_T__15_IN_parameter_declaration_287 = Set[ 1 ]
    TOKENS_FOLLOWING_parameters_IN_parameter_declaration_293 = Set[ 1 ]
    TOKENS_FOLLOWING_parameter_IN_parameters_317 = Set[ 1, 16 ]
    TOKENS_FOLLOWING_T__16_IN_parameters_322 = Set[ 5, 14, 17, 18 ]
    TOKENS_FOLLOWING_parameter_IN_parameters_324 = Set[ 1, 16 ]
    TOKENS_FOLLOWING_T__17_IN_parameter_342 = Set[ 5 ]
    TOKENS_FOLLOWING_ID_IN_parameter_346 = Set[ 1 ]
    TOKENS_FOLLOWING_T__18_IN_parameter_354 = Set[ 5 ]
    TOKENS_FOLLOWING_ID_IN_parameter_358 = Set[ 1 ]
    TOKENS_FOLLOWING_ID_IN_parameter_368 = Set[ 1, 19 ]
    TOKENS_FOLLOWING_T__19_IN_parameter_382 = Set[ 7 ]
    TOKENS_FOLLOWING_STRING_IN_parameter_386 = Set[ 1 ]

  end # class Parser < ANTLR3::Parser

end
# - - - - - - begin action @parser::footer - - - - - -
# GroupFile.g


end # module Template
end # module ANTLR3

# - - - - - - end action @parser::footer - - - - - - -


if __FILE__ == $0 and ARGV.first != '--'
  # - - - - - - begin action @parser::main - - - - - -
  # GroupFile.g


    defined?( ANTLR3::Template::GroupFile::Lexer ) or require 'antlr3/template/group-file'
    ANTLR3::Template::GroupFile::Parser.main( ARGV )

  # - - - - - - end action @parser::main - - - - - - -

end