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Maven 3 Plugin for processing JavaCC grammar files.
// Copyright 2012 Google Inc. All Rights Reserved.
// Author: [email protected] (Sreeni Viswanadha)
/* Copyright (c) 2006, Sun Microsystems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.javacc.parser;
import java.util.ArrayList;
import java.util.List;
/**
* Generates the Constants file.
*/
public class OtherFilesGenCPP extends JavaCCGlobals implements JavaCCParserConstants
{
static public void start () throws MetaParseException
{
Token t = null;
if (JavaCCErrors.get_error_count () != 0)
throw new MetaParseException ();
CPPFiles.gen_JavaCCDefs ();
CPPFiles.gen_CharStream ();
CPPFiles.gen_Token (); // TODO(theov): issued twice??
CPPFiles.gen_TokenManager ();
CPPFiles.gen_TokenMgrError ();
CPPFiles.gen_ParseException ();
CPPFiles.gen_Token (); // TODO(theov): issued twice??
CPPFiles.gen_ErrorHandler ();
try
{
ostr = new java.io.PrintWriter (new java.io.BufferedWriter (new java.io.FileWriter (new java.io.File (Options.getOutputDirectory (),
cu_name +
"Constants.h")),
8192));
}
catch (final java.io.IOException e)
{
JavaCCErrors.semantic_error ("Could not open file " + cu_name + "Constants.h for writing.");
throw new Error ();
}
final List tn = new ArrayList (toolNames);
tn.add (toolName);
ostr.println ("/* " + getIdString (tn, cu_name + "Constants.java") + " */");
if (cu_to_insertion_point_1.size () != 0 && ((Token) cu_to_insertion_point_1.get (0)).kind == PACKAGE)
{
for (int i = 1; i < cu_to_insertion_point_1.size (); i++)
{
if (((Token) cu_to_insertion_point_1.get (i)).kind == SEMICOLON)
{
printTokenSetup ((Token) (cu_to_insertion_point_1.get (0)));
for (int j = 0; j <= i; j++)
{
t = (Token) (cu_to_insertion_point_1.get (j));
printToken (t, ostr);
}
printTrailingComments (t, ostr);
ostr.println ("");
ostr.println ("");
break;
}
}
}
ostr.println ("");
ostr.println ("/**");
ostr.println (" * Token literal values and constants.");
ostr.println (" * Generated by org.javacc.parser.OtherFilesGen#start()");
ostr.println (" */");
final String define = (cu_name + "Constants_h").toUpperCase ();
ostr.println ("#ifndef " + define);
ostr.println ("#define " + define);
ostr.println ("#include \"JavaCC.h\"");
ostr.println ("");
if (Options.stringValue (Options.USEROPTION_CPP_NAMESPACE).length () > 0)
{
ostr.println ("namespace " + Options.stringValue ("NAMESPACE_OPEN"));
}
RegularExpression re;
final String constPrefix = "const";
ostr.println (" /** End of File. */");
ostr.println (constPrefix + " int _EOF = 0;");
for (final java.util.Iterator it = ordered_named_tokens.iterator (); it.hasNext ();)
{
re = (RegularExpression) it.next ();
ostr.println (" /** RegularExpression Id. */");
ostr.println (constPrefix + " int " + re.label + " = " + re.ordinal + ";");
}
ostr.println ("");
if (!Options.getUserTokenManager () && Options.getBuildTokenManager ())
{
for (int i = 0; i < LexGen.lexStateName.length; i++)
{
ostr.println (" /** Lexical state. */");
ostr.println (constPrefix + " int " + LexGen.lexStateName[i] + " = " + i + ";");
}
ostr.println ("");
}
ostr.println (" /** Literal token values. */");
int cnt = 0;
ostr.println (" static JAVACC_CHAR_TYPE tokenImage_arr_" + cnt + "[] = ");
printCharArray (ostr, "");
ostr.println (";");
for (final java.util.Iterator it = rexprlist.iterator (); it.hasNext ();)
{
final TokenProduction tp = (TokenProduction) (it.next ());
final List respecs = tp.respecs;
for (final java.util.Iterator it2 = respecs.iterator (); it2.hasNext ();)
{
final RegExprSpec res = (RegExprSpec) (it2.next ());
re = res.rexp;
ostr.println (" static JAVACC_CHAR_TYPE tokenImage_arr_" + ++cnt + "[] = ");
if (re instanceof RStringLiteral)
{
printCharArray (ostr, "\"" + ((RStringLiteral) re).image + "\"");
}
else
if (!re.label.equals (""))
{
printCharArray (ostr, "\"<" + re.label + ">\"");
}
else
{
if (re.tpContext.kind == TokenProduction.TOKEN)
{
JavaCCErrors.warning (re, "Consider giving this non-string token a label for better error reporting.");
}
printCharArray (ostr, "\"\"");
}
ostr.println (";");
}
}
ostr.println (" static JAVACC_STRING_TYPE tokenImage[] = {");
for (int i = 0; i <= cnt; i++)
{
ostr.println ("tokenImage_arr_" + i + ", ");
}
ostr.println (" };");
ostr.println ("");
if (Options.stringValue (Options.USEROPTION_CPP_NAMESPACE).length () > 0)
{
ostr.println (Options.stringValue ("NAMESPACE_CLOSE"));
}
ostr.println ("#endif");
ostr.close ();
}
// Used by the CPP code generatror
public static void printCharArray (final java.io.PrintWriter ostr, final String s)
{
ostr.print ("{");
for (int i = 0; i < s.length (); i++)
{
ostr.print ("0x" + Integer.toHexString (s.charAt (i)) + ", ");
}
ostr.print ("0}");
}
static private java.io.PrintWriter ostr;
public static void reInit ()
{
ostr = null;
}
}