java2xhtml.java

linux下建立JAVA虚拟机的源码KAFFE

/* gnu.classpath.tools.java2xhtml.Java2xhtml
   Copyright (C) 2005 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath 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 2, or (at your option)
any later version.
 
GNU Classpath 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 for more details.

You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */

/** Java2xhtml.java  Version 0.9
 *  Produces an XHTML file from Java source code with syntax highlighting,
 *  includes additional options (line numbering, tab spacing, etc.)
 * <P>
 * NOTE: Common java naming structure is assumed
 *       Capitalize the first letter that appears in a class or interface name
 *       Use lowercase for the first letter in a method or variable name
 *       Use only uppercase letters when naming constants 
 *
 * @version     0.9, March 2003
 * @author      Shayne Steele
 */
package gnu.classpath.tools.java2xhtml;

import java.io.*;
import java.util.*;

public class Java2xhtml
{
    //--- define CSS classes for individual output elements

    private static final String sourceCodeStyle = "source";
    private static final String lineNumberStyle = "line-number even";
    private static final String modulusLineNumberStyle = "line-number odd";

    private static final String keywordStyle = "keyword";
    private static final String methodStyle = "method member";
    private static final String variableStyle = "variable member";
    private static final String singleLineCommentStyle = "line comment";
    private static final String traditionalCommentStyle = "c comment";
    private static final String javadocCommentStyle = "javadoc comment";
    private static final String javadocTagStyle = "javadoc tag";
    private static final String importNameStyle = "import header type";
    private static final String packageNameStyle = "package header type";
    private static final String primitiveTypeStyle = "primitive type";
    private static final String nonPrimitiveTypeStyle = "non-primitive type";
    private static final String constructorStyle = "constructor member";
    private static final String constantStyle = "constant member";
    private static final String doubleQuoteStyle = "double quote";
    private static final String singleQuoteStyle = "single quote";
    private static final String numericLiteralStyle = "numeric literal";
    private static final String primitiveLiteralStyle = "primitive literal";

    private static final String iconStyle = "icon";



    // parse the command line arguments
    // give a decent responce for bad input
    // call the HTMLifier on good input
    public static void main(String args[])
    {
        // parse the invokation arguments 
        if (args.length < 1 || args.length > 3) // invoked program incorrectly
        {
            System.out.println("Java2xhtml Version 0.9 (C) 2005 Free Software Foundation");
            System.out.println("    Produces an XHTML file of Java source" +
                               " code with syntax highlighting,");
            System.out.println("    includes additional options " +
                               "(line numbering, tab spacing, etc.)");
            System.out.println("    This tool is part of GNU Classpath.");
            System.out.println("    GNU Classpath is free software; you can redistribute it and/or modify");
            System.out.println("    it under the terms of the GNU General Public License as published by");
            System.out.println("    the Free Software Foundation; either version 2, or (at your option)");
            System.out.println("    any later version.");
            System.out.println("    NOTE: Common java naming structure is " +
                               "assumed");
            System.out.println("");
            System.out.println("USAGE:");
            System.out.println("java  [java options]  Java2xhtml  " +
                               "source.java  [options file]  " +
                               "[output file]");
            System.out.println("");
            System.out.println("  - java is the name of the Java interpreter");
            System.out.println("  - [java options] are the optional options " +
                               "of the Java interpreter");
            System.out.println("  - Java2xhtml is the name of this " +
                               "application");
            System.out.println("  - source is a file or the directory to the " +
                               "Java source file(s)");
            System.out.println("  - [options file] is the optional " +
                               "path of a file with");
            System.out.println("    a structure like this:");
            System.out.println("        externalStyleSheetName=file_name" +
                               " (default style.css)");
            System.out.println("        tabSize=integer  (default value is 4)");
            System.out.println("        extraIndentation=integer  " +
                               "(default value is 0)");
            System.out.println("        lineModulus=integer (default value 5)");
            System.out.println("        isCodeSnippet=boolean" +
                               " (default false)");
            System.out.println("        isXHTML_1_1=boolean" +
                               " (default true)");
            System.out.println("        hasInternalStyleSheet=boolean" +
                               " (default true)");
            System.out.println("        hasExternalStyleSheet=boolean" +
                               " (default true)");
            System.out.println("        hasTitle=boolean" +
                               " (default false)");
            System.out.println("        hasLegend=boolean" +
                               " (default false)");
            System.out.println("        hasAllBoldSourceCode=boolean" +
                               " (default false)");
            System.out.println("        hasLineNumbers=boolean" +
                               " (default false)");
            System.out.println("        hasLineModulusDrawnLines=boolean" + 
                               " (default false)");
            System.out.println("        hasLineModulusCodeBlocks=boolean" +
                               " (default false)");
            System.out.println("        hasFooter=boolean" + 
                               " (default false)");
            System.out.println("        hasFooterIcons=boolean" + 
                               " (default false)");
            System.out.println("        hasFooterDate=boolean" + 
                               " (default true)");
            System.out.println("    NOTE: filename must end with '.prop'");
            System.out.println("    Default [options file] is " +
                               "options.prop");
            System.out.println("  - [output file] is name of the XHTML file " +
                               "that is produced");
            System.out.println("    Default [output file] is source_java.html");
            System.out.println("");
            System.out.println("Output: source.java --> [output file]");
            System.out.println("    Default Output is ");
            System.out.println("    source.java --> source_java.html");
            System.out.println("");
            System.out.println("Examples of calling the program:");
            System.out.println(" process one file (say Java2xhtml.java):");
            System.out.println("    java  Java2xhtml  Java2xhtml.java");
            System.out.println(" process one directory (say C:\\HOME):");
            System.out.println("    java  Java2xhtml  C:\\HOME");
            System.out.println(" process one directory (say C:\\HOME with a " +
                               "given options file (options.prop)):");
            System.out.println("    java  Java2xhtml  C:\\HOME options.prop");
        }
        else  
        {
            // invoked program correctly, now get command line arguments
            // get the source file name
            String sourceName;
            sourceName = args[0];
            // make sure that the source file exist and if so HTMLify it
            File sourceFilePath = new File(sourceName);
            if (sourceFilePath.exists())  
            {
                // good pathname so HTMLify it
                // get the default html options file name
                String propertiesFileName = "options.prop";
                // create a unique default html file name, 
                // bubba.java -> bubba_java.html
                String htmlFileName = sourceName.replace('.', '_') + ".html";
                if (args.length == 2 || args.length == 3)
                {
                    if (args[1].endsWith(".prop"))
                    {
                        // get the user supplied html options file name
                        propertiesFileName = args[1];
                    }
                    else
                    {
                        // get the user supplied html outputfile name
                        htmlFileName = args[1];
                    }
                }
                if (args.length == 3) 
                {
                    if (args[2].endsWith(".prop"))
                    {
                        // get the user supplied html options file name
                        propertiesFileName = args[2];
                    }
                    else
                    {
                        // get the user supplied html outputfile name
                        htmlFileName = args[2];
                    }
                }
                new Java2xhtml(propertiesFileName, sourceFilePath, 
                               htmlFileName);
            }
            else // source file does not exist, print message and exit normally
            {
                System.out.println("The source parameter must be an existent" +
                                   " file or directory");
                System.out.println("Run Java2xHtml without parameters for " +
                                   "help");
            }                 
        }
    }
    
    // collect various sets of keywords
    static Collection keywordCollection;
    static Collection primitiveTypeCollection;
    static Collection primitiveLiteralCollection;
    static Collection javadocTagCollection;

    // all these variables are changeable by a options file
    int extraIndentation = 0;
    int tabSize = 4;
    int lineModulus = 5;
    boolean hasLegend = false;
    boolean hasLineNumbers = false;
    boolean hasLineModulusDrawnLines = false;
    boolean hasLineModulusCodeBlocks = false;
    boolean hasFooter = false;
    boolean hasFooterIcons = false;
    boolean hasFooterDate = true;
    boolean isCodeSnippet = false;
    boolean isXHTML_1_1 = true;
    boolean hasTitle = false;
    boolean hasAllBoldSourceCode = false;
    boolean hasInternalStyleSheet = true;
    boolean hasExternalStyleSheet = true;
    String externalStyleSheetName = "style.css";

    static 
    {
        // collection type is Hashset for unique elements and fast retieval 
        String keywordArray[] =
            {
                "abstract", "default",      "if",           "private",      
                "do",       "implements",   "protected",    "throws",
                "break",    "import",       "public",       "transient",
                "else",     "instanceof",   "return",       "try",
                "case",     "extends",      "throw",        "static",
                "catch",    "final",        "interface",    "while",       
                "volatile", "finally",      "super",        "synchronized",
                "class",    "native",       "switch",       "package",
                "const",    "for",          "new",          "goto",
                "continue", "this",         "assert",       "strictfp"       
            };
        keywordCollection = new HashSet(Arrays.asList(keywordArray));
        String primitiveTypeArray[] =
            {
                "boolean",  "char",     "byte",         "short",        "int",
                "long",     "float",    "double",       "void"
            };
        primitiveTypeCollection = 
            new HashSet(Arrays.asList(primitiveTypeArray));
        String primitiveLiteralArray[]=
            {
                "false", "null", "true"
            };
        primitiveLiteralCollection = 
            new HashSet(Arrays.asList(primitiveLiteralArray));