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ANTLR Tool Source Code
ANTLR is a powerful parser generator for multiple programming languages including Java.
ANTLR contains 2 major modules:
ANTLR Tool Source Code files are provided in the distribution packge (antlr4-4.10.1.zip). You can download them at ANTLR Website.
You can also browse the source code below:
✍: FYIcenter
⏎ org/antlr/v4/gui/Trees.java
/* * Copyright (c) 2012-2017 The ANTLR Project. All rights reserved. * Use of this file is governed by the BSD 3-clause license that * can be found in the LICENSE.txt file in the project root. */ package org.antlr.v4.gui; import org.antlr.v4.runtime.Parser; import org.antlr.v4.runtime.misc.Utils; import org.antlr.v4.runtime.tree.Tree; import javax.print.PrintException; import javax.swing.*; import java.io.BufferedWriter; import java.io.FileWriter; import java.io.IOException; import java.util.Arrays; import java.util.List; import java.util.concurrent.Future; public class Trees { /** Call this method to view a parse tree in a dialog box visually. */ public static Future<JFrame> inspect(Tree t, List<String> ruleNames) { TreeViewer viewer = new TreeViewer(ruleNames, t); return viewer.open(); } /** Call this method to view a parse tree in a dialog box visually. */ public static Future<JFrame> inspect(Tree t, Parser parser) { List<String> ruleNames = parser != null ? Arrays.asList(parser.getRuleNames()) : null; return inspect(t, ruleNames); } /** Save this tree in a postscript file */ public static void save(Tree t, Parser parser, String fileName) throws IOException, PrintException { List<String> ruleNames = parser != null ? Arrays.asList(parser.getRuleNames()) : null; save(t, ruleNames, fileName); } /** Save this tree in a postscript file using a particular font name and size */ public static void save(Tree t, Parser parser, String fileName, String fontName, int fontSize) throws IOException { List<String> ruleNames = parser != null ? Arrays.asList(parser.getRuleNames()) : null; save(t, ruleNames, fileName, fontName, fontSize); } /** Save this tree in a postscript file */ public static void save(Tree t, List<String> ruleNames, String fileName) throws IOException, PrintException { writePS(t, ruleNames, fileName); } /** Save this tree in a postscript file using a particular font name and size */ public static void save(Tree t, List<String> ruleNames, String fileName, String fontName, int fontSize) throws IOException { writePS(t, ruleNames, fileName, fontName, fontSize); } public static String getPS(Tree t, List<String> ruleNames, String fontName, int fontSize) { TreePostScriptGenerator psgen = new TreePostScriptGenerator(ruleNames, t, fontName, fontSize); return psgen.getPS(); } public static String getPS(Tree t, List<String> ruleNames) { return getPS(t, ruleNames, "Helvetica", 11); } public static void writePS(Tree t, List<String> ruleNames, String fileName, String fontName, int fontSize) throws IOException { String ps = getPS(t, ruleNames, fontName, fontSize); FileWriter f = new FileWriter(fileName); BufferedWriter bw = new BufferedWriter(f); try { bw.write(ps); } finally { bw.close(); } } public static void writePS(Tree t, List<String> ruleNames, String fileName) throws IOException { writePS(t, ruleNames, fileName, "Helvetica", 11); } /** Print out a whole tree in LISP form. Arg nodeTextProvider is used on the * node payloads to get the text for the nodes. * * @since 4.5.1 */ public static String toStringTree(Tree t, TreeTextProvider nodeTextProvider) { if ( t==null ) return "null"; String s = Utils.escapeWhitespace(nodeTextProvider.getText(t), false); if ( t.getChildCount()==0 ) return s; StringBuilder buf = new StringBuilder(); buf.append("("); s = Utils.escapeWhitespace(nodeTextProvider.getText(t), false); buf.append(s); buf.append(' '); for (int i = 0; i<t.getChildCount(); i++) { if ( i>0 ) buf.append(' '); buf.append(toStringTree(t.getChild(i), nodeTextProvider)); } buf.append(")"); return buf.toString(); } private Trees() { } }
⏎ org/antlr/v4/gui/Trees.java
Or download all of them as a single archive file:
File name: antlr-tool-4.10.1-sources.jar File size: 347718 bytes Release date: 2022-04-15 Download
2022-04-24, 26792👍, 0💬
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