ANTLR

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{{SeeWikipedia}}
 
{{SeeWikipedia}}
  
[[Image:antlr-editor.jpg|right|thumb|Editor]]
 
 
ANTLR, ANother Tool for Language Recognition, is a language tool that provides a framework for constructing recognizers, interpreters, compilers, and translators from grammatical descriptions containing actions in a variety of target languages. ANTLR provides excellent support for tree construction, tree walking, translation, error recovery, and error reporting.
 
ANTLR, ANother Tool for Language Recognition, is a language tool that provides a framework for constructing recognizers, interpreters, compilers, and translators from grammatical descriptions containing actions in a variety of target languages. ANTLR provides excellent support for tree construction, tree walking, translation, error recovery, and error reporting.
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==简介==
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==功能==
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==指南==
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===mac OS===
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$ cd /usr/local/lib
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$ sudo curl -O https://www.antlr.org/download/antlr-4.7.1-complete.jar
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$ export CLASSPATH=".:/usr/local/lib/antlr-4.7.1-complete.jar:$CLASSPATH"
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$ alias antlr4='java -jar /usr/local/lib/antlr-4.7.1-complete.jar'
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$ alias grun='java org.antlr.v4.gui.TestRig'
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touch Expr.g4
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grammar Expr;
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prog: (expr NEWLINE)* ;
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expr: expr ('*'|'/') expr
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    | expr ('+'|'-') expr
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    | INT
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    | '(' expr ')'
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    ;
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NEWLINE : [\r\n]+ ;
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INT    : [0-9]+ ;
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编译运行
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$ antlr4 Expr.g4
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$ javac Expr*.java
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$ grun Expr prog -gui
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100+2*34
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^D
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==语言==
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*[https://github.com/apache/groovy/tree/master/src/antlr Groovy]词法分析、语法分析  [[Groovy]] [https://github.com/apache/groovy/blob/master/src/main/antlr2/org/codehaus/groovy/antlr/groovy.g Main程序]
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==项目==
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==图集==
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<gallery>
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image:antlr-editor.jpg|Editor
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image:antlr-parse-tree-insepector.png|语法分析树
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</gallery>
  
 
==链接==
 
==链接==

2018年5月4日 (五) 07:00的最后版本

Wikipedia-35x35.png 您可以在Wikipedia上了解到此条目的英文信息 ANTLR Thanks, Wikipedia.

ANTLR, ANother Tool for Language Recognition, is a language tool that provides a framework for constructing recognizers, interpreters, compilers, and translators from grammatical descriptions containing actions in a variety of target languages. ANTLR provides excellent support for tree construction, tree walking, translation, error recovery, and error reporting.

目录

[编辑] 简介

[编辑] 功能

[编辑] 指南

[编辑] mac OS

$ cd /usr/local/lib
$ sudo curl -O https://www.antlr.org/download/antlr-4.7.1-complete.jar
$ export CLASSPATH=".:/usr/local/lib/antlr-4.7.1-complete.jar:$CLASSPATH"
$ alias antlr4='java -jar /usr/local/lib/antlr-4.7.1-complete.jar'
$ alias grun='java org.antlr.v4.gui.TestRig'

touch Expr.g4

grammar Expr;		
prog:	(expr NEWLINE)* ;
expr:	expr ('*'|'/') expr
    |	expr ('+'|'-') expr
    |	INT
    |	'(' expr ')'
    ;
NEWLINE : [\r\n]+ ;
INT     : [0-9]+ ;

编译运行

$ antlr4 Expr.g4
$ javac Expr*.java
$ grun Expr prog -gui
100+2*34
^D

[编辑] 语言

[编辑] 项目

[编辑] 图集

[编辑] 链接

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