/*
* Copyright (C) 2014 Alfons Wirtz
* website www.freerouting.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License at <http://www.gnu.org/licenses/>
* for more details.
*
* Parser.java
*
* Created on 24. Januar 2005, 08:29
*/
package designformats.specctra;
import board.Communication.SpecctraParserInfo;
/**
* Class for reading and writing parser scopes from dsn-files.
*
* @author Alfons Wirtz
*/
public class Parser extends ScopeKeyword
{
/** Creates a new instance of Parser */
public Parser()
{
super("parser");
}
public boolean read_scope(ReadScopeParameter p_par)
{
Object next_token = null;
for (;;)
{
Object prev_token = next_token;
try
{
next_token = p_par.scanner.next_token();
}
catch (java.io.IOException e)
{
System.out.println("Parser.read_scope: IO error scanning file");
return false;
}
if (next_token == null)
{
System.out.println("Parser.read_scope: unexpected end of file");
return false;
}
if (next_token == CLOSED_BRACKET)
{
// end of scope
break;
}
boolean read_ok = true;
if (prev_token == OPEN_BRACKET)
{
if (next_token == Keyword.STRING_QUOTE)
{
String quote_char = read_quote_char(p_par.scanner);
if (quote_char == null)
{
return false;
}
p_par.string_quote = quote_char;
}
else if (next_token == Keyword.HOST_CAD)
{
p_par.host_cad = DsnFile.read_string_scope(p_par.scanner);
}
else if (next_token == Keyword.HOST_VERSION)
{
p_par.host_version = DsnFile.read_string_scope(p_par.scanner);
}
else if (next_token == Keyword.CONSTANT)
{
String[] curr_constant = read_constant(p_par);
if (curr_constant != null)
{
p_par.constants.add(curr_constant);
}
}
else if (next_token == Keyword.WRITE_RESOLUTION)
{
p_par.write_resolution = read_write_solution(p_par);
}
else if (next_token == Keyword.GENERATED_BY_FREEROUTE)
{
p_par.dsn_file_generated_by_host = false;
// skip the closing bracket
skip_scope(p_par.scanner);
}
else
{
skip_scope(p_par.scanner);
}
}
if (!read_ok)
{
return false;
}
}
return true;
}
private static SpecctraParserInfo.WriteResolution read_write_solution(ReadScopeParameter p_par)
{
try
{
Object next_token = p_par.scanner.next_token();
if (!(next_token instanceof String))
{
System.out.println("Parser.read_write_solution: string expected");
return null;
}
String resolution_string = (String) next_token;
next_token = p_par.scanner.next_token();
if (!(next_token instanceof Integer))
{
System.out.println("Parser.read_write_solution: integer expected expected");
return null;
}
int resolution_value = (Integer) next_token;
next_token = p_par.scanner.next_token();
if (next_token != Keyword.CLOSED_BRACKET)
{
System.out.println("Parser.read_write_solution: closing_bracket expected");
return null;
}
return new SpecctraParserInfo.WriteResolution(resolution_string, resolution_value);
}
catch (java.io.IOException e)
{
System.out.println("Parser.read_write_solution: IO error scanning file");
return null;
}
}
private static String[] read_constant(ReadScopeParameter p_par)
{
try
{
String[] result = new String[2];
p_par.scanner.yybegin(SpecctraFileScanner.NAME);
Object next_token = p_par.scanner.next_token();
if (!(next_token instanceof String))
{
System.out.println("Parser.read_constant: string expected");
return null;
}
result[0] = (String) next_token;
p_par.scanner.yybegin(SpecctraFileScanner.NAME);
next_token = p_par.scanner.next_token();
if (!(next_token instanceof String))
{
System.out.println("Parser.read_constant: string expected");
return null;
}
result[1] = (String) next_token;
next_token = p_par.scanner.next_token();
if (next_token != Keyword.CLOSED_BRACKET)
{
System.out.println("Parser.read_constant: closing_bracket expected");
return null;
}
return result;
}
catch (java.io.IOException e)
{
System.out.println("Parser.read_constant: IO error scanning file");
return null;
}
}
/**
* p_reduced is true if the scope is written to a session file.
*/
public static void write_scope(datastructures.IndentFileWriter p_file, SpecctraParserInfo p_parser_info,
datastructures.IdentifierType p_identifier_type, boolean p_reduced) throws java.io.IOException
{
p_file.start_scope();
p_file.write("parser");
if (!p_reduced)
{
p_file.new_line();
p_file.write("(string_quote ");
p_file.write(p_parser_info.string_quote);
p_file.write(")");
p_file.new_line();
p_file.write("(space_in_quoted_tokens on)");
}
if (p_parser_info.host_cad != null)
{
p_file.new_line();
p_file.write("(host_cad ");
p_identifier_type.write(p_parser_info.host_cad, p_file);
p_file.write(")");
}
if (p_parser_info.host_version != null)
{
p_file.new_line();
p_file.write("(host_version ");
p_identifier_type.write(p_parser_info.host_version, p_file);
p_file.write(")");
}
if (p_parser_info.constants != null)
{
for (String[] curr_constant : p_parser_info.constants)
{
p_file.new_line();
p_file.write("(constant ");
for (int i = 0; i < curr_constant.length; ++i)
{
p_identifier_type.write(curr_constant[i], p_file);
p_file.write(" ");
}
p_file.write(")");
}
}
if (p_parser_info.write_resolution != null)
{
p_file.new_line();
p_file.write("(write_resolution ");
p_file.write(p_parser_info.write_resolution.char_name.substring(0, 1));
p_file.write(" ");
Integer positive_int = p_parser_info.write_resolution.positive_int;
p_file.write(positive_int.toString());
p_file.write(")");
}
if (!p_reduced)
{
p_file.new_line();
p_file.write("(generated_by_freeroute)");
}
p_file.end_scope();
}
private static String read_quote_char(Scanner p_scanner)
{
try
{
Object next_token = p_scanner.next_token();
if (!(next_token instanceof String))
{
System.out.println("Parser.read_quote_char: string expected");
return null;
}
String result = (String) next_token;
next_token = p_scanner.next_token();
if (next_token != Keyword.CLOSED_BRACKET)
{
System.out.println("Parser.read_quote_char: closing bracket expected");
return null;
}
return result;
}
catch (java.io.IOException e)
{
System.out.println("Parser.read_quote_char: IO error scanning file");
return null;
}
}
}