/* This file is part of NIT ( http://www.nitlanguage.org ).
 *
 * Copyright 2008 Jean Privat <jean@pryen.org>
 * Based on algorithms developped for ( http://www.sablecc.org/ ).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

$ template make_abs_tokens()
$ foreach {//token}
$ if {@parser_index}    
class @ename
special Token
end
$ end
$ end
class EOF 
special Token
end
class PError
special EOF
end
$ end template

$ template make_tokens()

redef class Token
    readable writable attr _text: String 
    readable attr _filename: String 
    readable attr _line: Int 
    readable attr _pos: Int 
    
    meth parser_index: Int is abstract

    redef meth to_s: String do
        return "'{_text}'"
    end
end

$ foreach {//token}
$ if {@parser_index}    
redef class @ename
    redef meth parser_index: Int
    do
    	return @parser_index
    end

$ if {not(@text)}
    init(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
$ else
    init(fname: String, line: Int, pos: Int)
    do
        _text = once "${sablecc:string2escaped_unicode(@text)}"
$ end
	_filename = fname
        _line = line
        _pos = pos
    end
end

$ end if 
$ end foreach

redef class EOF 
    redef meth parser_index: Int
    do
    	return ${tokens/eof/@parser_index}
    end
    
    init(fname: String, line: Int, pos: Int)
    do
    	_filename = fname
        _text = ""
        _line = line
        _pos = pos
    end
end

redef class PError
    readable writable attr _message: String 
    
    init init_error(fname: String, line: Int, pos: Int, message: String)
    do
        init(fname, line, pos)
	_message = message
    end
end

$ end template