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ANTLR Runtime Source Code
ANTLR is a powerful parser generator for multiple programming languages including Java.
ANTLR contains 2 major modules:
ANTLR Runtime 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/runtime/Token.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.runtime; /** A token has properties: text, type, line, character position in the line * (so we can ignore tabs), token channel, index, and source from which * we obtained this token. */ public interface Token { public static final int INVALID_TYPE = 0; /** During lookahead operations, this "token" signifies we hit rule end ATN state * and did not follow it despite needing to. */ public static final int EPSILON = -2; public static final int MIN_USER_TOKEN_TYPE = 1; public static final int EOF = IntStream.EOF; /** All tokens go to the parser (unless skip() is called in that rule) * on a particular "channel". The parser tunes to a particular channel * so that whitespace etc... can go to the parser on a "hidden" channel. */ public static final int DEFAULT_CHANNEL = 0; /** Anything on different channel than DEFAULT_CHANNEL is not parsed * by parser. */ public static final int HIDDEN_CHANNEL = 1; /** * This is the minimum constant value which can be assigned to a * user-defined token channel. * * <p> * The non-negative numbers less than {@link #MIN_USER_CHANNEL_VALUE} are * assigned to the predefined channels {@link #DEFAULT_CHANNEL} and * {@link #HIDDEN_CHANNEL}.</p> * * @see Token#getChannel() */ public static final int MIN_USER_CHANNEL_VALUE = 2; /** * Get the text of the token. */ String getText(); /** Get the token type of the token */ int getType(); /** The line number on which the 1st character of this token was matched, * line=1..n */ int getLine(); /** The index of the first character of this token relative to the * beginning of the line at which it occurs, 0..n-1 */ int getCharPositionInLine(); /** Return the channel this token. Each token can arrive at the parser * on a different channel, but the parser only "tunes" to a single channel. * The parser ignores everything not on DEFAULT_CHANNEL. */ int getChannel(); /** An index from 0..n-1 of the token object in the input stream. * This must be valid in order to print token streams and * use TokenRewriteStream. * * Return -1 to indicate that this token was conjured up since * it doesn't have a valid index. */ int getTokenIndex(); /** The starting character index of the token * This method is optional; return -1 if not implemented. */ int getStartIndex(); /** The last character index of the token. * This method is optional; return -1 if not implemented. */ int getStopIndex(); /** Gets the {@link TokenSource} which created this token. */ TokenSource getTokenSource(); /** * Gets the {@link CharStream} from which this token was derived. */ CharStream getInputStream(); }
⏎ org/antlr/v4/runtime/Token.java
Or download all of them as a single archive file:
File name: antlr-runtime-4.10.1-sources.jar File size: 308953 bytes Release date: 2022-04-15 Download
⇐ What Is ANTLR Parser Generator
2018-10-21, 30997👍, 0💬
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