javacc-7.0.1.src.main.java.org.javacc.parser.OtherFilesGenCPP Maven / Gradle / Ivy
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JavaCC is a parser/scanner generator for Java.
// 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_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 (java.io.IOException e) {
JavaCCErrors.semantic_error("Could not open file " + cu_name + "Constants.h for writing.");
throw new Error();
}
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(" */");
String define = (cu_name + "Constants_h").toUpperCase();
ostr.println("#pragma once");
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;
String constPrefix = "const";
ostr.println(" /** End of File. */");
ostr.println(constPrefix + " int _EOF = 0;");
for (java.util.Iterator it = ordered_named_tokens.iterator(); it.hasNext();) {
re = 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 < Main.lg.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 const JJChar tokenImage_arr_" + cnt + "[] = ");
printCharArray(ostr, "");
ostr.println(";");
for (java.util.Iterator it = rexprlist.iterator(); it.hasNext();) {
TokenProduction tp = it.next();
List respecs = tp.respecs;
for (java.util.Iterator it2 = respecs.iterator(); it2.hasNext();) {
RegExprSpec res = it2.next();
re = res.rexp;
ostr.println(" static const JJChar 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 const JJChar* const 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.close();
}
// Used by the CPP code generatror
public static void printCharArray(java.io.PrintWriter ostr, String s) {
ostr.print("{");
for (int i = 0; i < s.length(); i++) {
ostr.print("0x" + Integer.toHexString((int)s.charAt(i)) + ", ");
}
ostr.print("0}");
}
static private java.io.PrintWriter ostr;
public static void reInit()
{
ostr = null;
}
}