1 files changed, 0 insertions, 339 deletions
diff --git a/libexec/y2racc b/libexec/y2racc
deleted file mode 100755
index 7933f94153..0000000000
--- a/libexec/y2racc
+++ /dev/null
@@ -1,339 +0,0 @@
-#!/usr/local/bin/ruby
-#
-# $Id$
-#
-# Copyright (c) 1999-2006 Minero Aoki
-#
-# This program is free software.
-# You can distribute/modify this program under the terms of
-# the GNU LGPL, Lesser General Public License version 2.1.
-# For details of the GNU LGPL, see the file "COPYING".
-#
-
-require 'racc/info'
-require 'strscan'
-require 'forwardable'
-require 'optparse'
-
-def main
-  @with_action = true
-  @with_header = false
-  @with_usercode = false
-  cname = 'MyParser'
-  input = nil
-  output = nil
-  parser = OptionParser.new
-  parser.banner = "Usage: #{File.basename($0)} [-Ahu] [-c <classname>] [-o <filename>] <input>"
-  parser.on('-o', '--output=FILENAME', 'output file name [<input>.racc]') {|name|
-    output = name
-  }
-  parser.on('-c', '--classname=NAME', "Name of the parser class. [#{cname}]") {|name|
-    cname = name
-  }
-  parser.on('-A', '--without-action', 'Does not include actions.') {
-    @with_action = false
-  }
-  parser.on('-h', '--with-header', 'Includes header (%{...%}).') {
-    @with_header = true
-  }
-  parser.on('-u', '--with-user-code', 'Includes user code.') {
-    @with_usercode = true
-  }
-  parser.on('--version', 'Prints version and quit.') {
-    puts "y2racc version #{Racc::Version}"
-    exit 0
-  }
-  parser.on('--copyright', 'Prints copyright and quit.') {
-    puts Racc::Copyright
-    exit 0
-  }
-  parser.on('--help', 'Prints this message and quit.') {
-    puts parser.help
-    exit 1
-  }
-  begin
-    parser.parse!
-  rescue OptionParser::ParseError => err
-    $stderr.puts err.message
-    $stderr.puts parser.help
-    exit 1
-  end
-  if ARGV.empty?
-    $stderr.puts 'no input'
-    exit 1
-  end
-  if ARGV.size > 1
-    $stderr.puts 'too many input'
-    exit 1
-  end
-  input = ARGV[0]
-
-  begin
-    result = YaccFileParser.parse_file(input)
-    File.open(output || "#{input}.racc", 'w') {|f|
-      convert cname, result, f
-    }
-  rescue SystemCallError => err
-    $stderr.puts err.message
-    exit 1
-  end
-end
-
-def convert(classname, result, f)
-  init_indent = 'token'.size
-  f.puts %<# Converted from "#{result.filename}" by y2racc version #{Racc::Version}>
-  f.puts
-  f.puts "class #{classname}"
-  unless result.terminals.empty?
-    f.puts
-    f.print 'token'
-    columns = init_indent
-    result.terminals.each do |t|
-      if columns > 60
-        f.puts
-        f.print ' ' * init_indent
-        columns = init_indent
-      end
-      columns += f.write(" #{t}")
-    end
-    f.puts
-  end
-  unless result.precedence_table.empty?
-    f.puts
-    f.puts 'preclow'
-    result.precedence_table.each do |assoc, toks|
-      f.printf "  %-8s %s\n", assoc, toks.join(' ')  unless toks.empty?
-    end
-    f.puts 'prechigh'
-  end
-  if result.start
-    f.puts
-    f.puts "start #{@start}"
-  end
-
-  f.puts
-  f.puts 'rule'
-  texts = @with_action ? result.grammar : result.grammar_without_actions
-  texts.each do |text|
-    f.print text
-  end
-
-  if @with_header and result.header
-    f.puts
-    f.puts '---- header'
-    f.puts result.header
-  end
-  if @with_usercode and result.usercode
-    f.puts
-    f.puts '---- footer'
-    f.puts result.usercode
-  end
-end
-
-class ParseError < StandardError; end
-
-class StringScanner_withlineno
-  def initialize(src)
-    @s = StringScanner.new(src)
-    @lineno = 1
-  end
-
-  extend Forwardable
-  def_delegator "@s", :eos?
-  def_delegator "@s", :rest
-
-  attr_reader :lineno
-
-  def scan(re)
-    advance_lineno(@s.scan(re))
-  end
-
-  def scan_until(re)
-    advance_lineno(@s.scan_until(re))
-  end
-
-  def skip(re)
-    str = advance_lineno(@s.scan(re))
-    str ? str.size : nil
-  end
-
-  def getch
-    advance_lineno(@s.getch)
-  end
-
-  private
-
-  def advance_lineno(str)
-    @lineno += str.count("\n") if str
-    str
-  end
-end
-
-class YaccFileParser
-
-  Result = Struct.new(:terminals, :precedence_table, :start,
-                      :header, :grammar, :usercode, :filename)
-  class Result   # reopen
-    def initialize
-      super
-      self.terminals = []
-      self.precedence_table = []
-      self.start = nil
-      self.grammar = []
-      self.header = nil
-      self.usercode = nil
-      self.filename = nil
-    end
-
-    def grammar_without_actions
-      grammar().map {|text| text[0,1] == '{' ? '{}' : text }
-    end
-  end
-
-  def YaccFileParser.parse_file(filename)
-    new().parse(File.read(filename), filename)
-  end
-
-  def parse(src, filename = '-')
-    @result = Result.new
-    @filename = filename
-    @result.filename = filename
-    s = StringScanner_withlineno.new(src)
-    parse_header s
-    parse_grammar s
-    @result
-  end
-
-  private
-
-  COMMENT = %r</\*[^*]*\*+(?:[^/*][^*]*\*+)*/>
-  CHAR = /'((?:[^'\\]+|\\.)*)'/
-  STRING = /"((?:[^"\\]+|\\.)*)"/
-
-  def parse_header(s)
-    skip_until_percent s
-    until s.eos?
-      case
-      when t = s.scan(/left/)
-        @result.precedence_table.push ['left', scan_symbols(s)]
-      when t = s.scan(/right/)
-        @result.precedence_table.push ['right', scan_symbols(s)]
-      when t = s.scan(/nonassoc/)
-        @result.precedence_table.push ['nonassoc', scan_symbols(s)]
-      when t = s.scan(/token/)
-        list = scan_symbols(s)
-        list.shift if /\A<(.*)>\z/ =~ list[0]
-        @result.terminals.concat list
-      when t = s.scan(/start/)
-        @result.start = scan_symbols(s)[0]
-      when s.skip(%r<(?:
-            type | union | expect | thong | binary |
-            semantic_parser | pure_parser | no_lines |
-            raw | token_table
-            )\b>x)
-        skip_until_percent s
-      when s.skip(/\{/)   # header (%{...%})
-        str = s.scan_until(/\%\}/)
-        str.chop!
-        str.chop!
-        @result.header = str
-        skip_until_percent s
-      when s.skip(/\%/)   # grammar (%%...)
-        return
-      else
-        raise ParseError, "#{@filename}:#{s.lineno}: scan error"
-      end
-    end
-  end
-
-  def skip_until_percent(s)
-    until s.eos?
-      s.skip /[^\%\/]+/
-      next if s.skip(COMMENT)
-      return if s.getch == '%'
-    end
-  end
-
-  def scan_symbols(s)
-    list = []
-    until s.eos?
-      s.skip /\s+/
-      if s.skip(COMMENT)
-        ;
-      elsif t = s.scan(CHAR)
-        list.push t
-      elsif t = s.scan(STRING)
-        list.push t
-      elsif s.skip(/\%/)
-        break
-      elsif t = s.scan(/\S+/)
-        list.push t
-      else
-        raise ParseError, "#{@filename}:#{@lineno}: scan error"
-      end
-    end
-    list
-  end
-
-  def parse_grammar(s)
-    buf = []
-    until s.eos?
-      if t = s.scan(/[^%'"{\/]+/)
-        buf.push t
-        break if s.eos?
-      end
-      if s.skip(/\{/)
-        buf.push scan_action(s)
-      elsif t = s.scan(/'(?:[^'\\]+|\\.)*'/) then buf.push t
-      elsif t = s.scan(/"(?:[^"\\]+|\\.)*"/) then buf.push t
-      elsif t = s.scan(COMMENT) then buf.push t
-      elsif s.skip(/%prec\b/)   then buf.push '='
-      elsif s.skip(/%%/)
-        @result.usercode = s.rest
-        break
-      else
-        buf.push s.getch
-      end
-    end
-    @result.grammar = buf
-  end
-
-  def scan_action(s)
-    buf = '{'
-    nest = 1
-    until s.eos?
-      if t = s.scan(%r<[^/{}'"]+>)
-        buf << t
-        break if s.eos?
-      elsif t = s.scan(COMMENT)
-        buf << t
-      elsif t = s.scan(CHAR)
-        buf << t
-      elsif t = s.scan(STRING)
-        buf << t
-      else
-        c = s.getch
-        buf << c
-        case c
-        when '{'
-          nest += 1
-        when '}'
-          nest -= 1
-          return buf if nest == 0
-        end
-      end
-    end
-    $stderr.puts "warning: unterminated action in #{@filename}"
-    buf
-  end
-
-end
-
-unless Object.method_defined?(:funcall)
-  class Object
-    alias funcall __send__
-  end
-end
-
-
-main