[英]antlr panic on pascal grammar
I want to generate Pascal
java parser and then use it in my gradle
application. 我想生成
Pascal
java解析器,然后在我的gradle
应用程序中使用它。
For Pascal
I used this grammar https://github.com/antlr/grammars-v4/tree/master/pascal 对于
Pascal
我使用了这个语法https://github.com/antlr/grammars-v4/tree/master/pascal
My build.gradle
looks like this. 我的
build.gradle
看起来像这样。 I used antlr
plugin. 我用过
antlr
插件。
apply plugin: 'groovy'
apply plugin: 'antlr'
repositories {
jcenter()
}
dependencies {
compile 'org.codehaus.groovy:groovy-all:2.4.6'
compile 'org.antlr:antlr4:4.5.3'
testCompile 'org.spockframework:spock-core:1.0-groovy-2.4'
testCompile 'junit:junit:4.12'
}
But when I try to run task generateGrammarSource
I get this error 但是当我尝试运行task
generateGrammarSource
我得到了这个错误
:generateGrammarSource
L:\app\src\main\antlr\pascal.g4:36:1: unexpected token: grammar
error: Token stream error reading grammar(s):
L:\app\src\main\antlr\pascal.g4:804:8: expecting ''', found '='
L:\app\src\main\antlr\pascal.g4:36:1: unexpected token: grammar
error: Token stream error reading grammar(s):
L:\app\src\main\antlr\pascal.g4:804:8: expecting ''', found '='
L:\app\src\main\antlr\pascal.g4:36:1: rule grammar trapped:
L:\app\src\main\antlr\pascal.g4:36:1: unexpected token: grammar
TokenStreamException: expecting ''', found '='
:generateGrammarSource FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':generateGrammarSource'.
> There was 1 error during grammar generation
> ANTLR Panic: TokenStreamException: expecting ''', found '='
What it is the problem? 这是什么问题?
from the plug in docs at https://docs.gradle.org/current/userguide/antlr_plugin.html#sec:antlr_dependency_management 来自插件文档https://docs.gradle.org/current/userguide/antlr_plugin.html#sec:antlr_dependency_management
"antlr:antlr:2.7.7 will be used as the default." “antlr:antlr:2.7.7将被用作默认值。”
to change this simply say which version to use as below 要改变这个,只需说出要使用的版本,如下所示
dependencies {
//antlr "org.antlr:antlr:3.5.2" // use ANTLR version 3
antlr "org.antlr:antlr4:4.5" // use ANTLR version 4
}
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