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| (一)idea配置ANTLR plugin | |
| https://blog.dgunia.de/2017/10/26/creating-and-testing-an-antlr-parser-with-intellij-idea-or-android-studio/ | |
| https://qiita.com/kazy/items/ad99142111bba2f0e708(kotlin版) | |
| (二)简单例子 | |
| --Hello.g4 | |
| grammar Hello; | |
| main: 'Hello ' name '!'; | |
| name: ANY+; | |
| ANY: .; | |
| --Hello.kt | |
| package antlrdemo | |
| import com.huawei.antr.* | |
| import org.antlr.v4.runtime.CommonTokenStream | |
| import org.antlr.v4.runtime.CharStreams | |
| fun main(args: Array<String>) { | |
| val text = "Hello world!" | |
| val source = CharStreams.fromString(text) | |
| val lexer = HelloLexer(source) | |
| val tokenStream = CommonTokenStream(lexer) | |
| val parser = HelloParser(tokenStream) | |
| val name = parser.main().name().text | |
| println(name) | |
| } | |
| (三)问题 | |
| (1)Caused by: java.io.InvalidClassException: org.antlr.v4.runtime.atn.ATN; Could not deserialize ATN with UUID 59627784-3be5-417a-b9eb-8131a7286089 (expected aadb8d7e-aeef-4415-ad2b-8204d6cf042e or a legacy UUID). | |
| ANTLR plugin版本和项目中maven依赖的antlr版本不一致 | |
| https://www.cnblogs.com/dsj2016/p/9575712.html |
https://github.com/antlr/antlr4/blob/master/doc/listeners.md
See the book for more information on listeners and to learn how to use visitors. (The biggest difference between the listener and visitor mechanisms is that listener methods are called independently by an ANTLR-provided walker object, whereas visitor methods must walk their children with explicit visit calls. Forgetting to invoke visitor methods on a node’s children, means those subtrees don’t get visited.)
https://abcdabcd987.com/notes-on-antlr4/
ANTLR 4 Runtime 提供了一个 ParseTreeProperty ，其实大致就是个 IdentityHashMap。你可以把 Context 当作 key 把相关的东西丢进去。
https://zhenglinj.github.io/technology/2017/08/05/antlr4-maven-examples/
ParseTreeProperty
https://github.com/tcoenraad/compiler-construction/blob/master/block-2/pp/block2/cc/antlr/Calculator.java
https://blog.csdn.net/qq_37771475/article/details/106546742
https://stuff.mit.edu/afs/athena/software/antlr_v4.5/code/listeners/TestLEvaluatorWithProps.java
重点关注如何使用ParseTreeProperty
升级到版本4.9.2，同时只生成listner模式的代码，解决了listener模式下不进入exitXXX函数的问题；
antlr4 -o D:/IdeaProject/IdeaProjects/antlrdemo\gen -listener -no-visitor -lib D:/IdeaProject/IdeaProjects/antlrdemo D:/IdeaProject/IdeaProjects/antlrdemo\Calc.g4
Why there's no grammar for PostgreSQL?
antlr/grammars-v4#1501
https://github.com/pgcodekeeper/pgcodekeeper/blob/master/apgdiff/antlr-src/SQLParser.g4
Grammar Structure
https://github.com/antlr/antlr4/blob/master/doc/grammars.md
import org.antlr.v4.runtime.ParserRuleContext
override fun exitEveryRule(ctx: ParserRuleContext ) {
println("test")
println(ctx.javaClass)
}
https://stackoverflow.com/questions/41180399/modify-expressions-generated-by-antlr
https://stackoverflow.com/questions/2228810/how-can-i-modify-the-text-of-tokens-in-a-commontokenstream-with-antlr
重写输入流
https://www.bookstack.cn/read/antlr4-short-course/rewriting-input-stream.md
https://www.antlr.org/api/Java/org/antlr/v4/runtime/TokenStreamRewriter.html
WS
: [ \t\r\n] + -> channel(HIDDEN)
;
将词法符号送入不同通道
https://blog.csdn.net/pourtheworld/article/details/108293630
https://blog.csdn.net/pourtheworld/article/details/108430250
An arithmetic expressions evaluator with Kotlin and ANTLR4
https://flavluc.github.io/blog/kotlin-antlr/
ANTLR4 Language Target, Runtime for Go
https://github.com/antlr/antlr4/blob/master/doc/go-target.md
https://github.com/wojiaxiaoyueyue/Antlr4.7-Calculator/blob/master/antlr4-short-course.pdf