antlrdemo

参考https://github.com/wojiaxiaoyueyue/Antlr4.7-Calculator

https://gist.github.com/virtualsafety/9d27a62ab615c9425d830fb35a4d5b76

(1)重点关注如何使用ParseTreeProperty

https://zhenglinj.github.io/technology/2017/08/05/antlr4-maven-examples/

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

(2)sqlparser for postgresql

https://github.com/pgcodekeeper/pgcodekeeper/tree/master/apgdiff/antlr-src

antlr/grammars-v4#1501 https://github.com/apache/shardingsphere/blob/master/shardingsphere-sql-parser/shardingsphere-sql-parser-dialect/shardingsphere-sql-parser-postgresql/src/main/antlr4/imports/postgresql/Keyword.g4

把Keyword.g4中间中 WS : [ \t\r\n] + ->skip ;

替换为 WS : [ \t\r\n] + -> channel(HIDDEN) ;

测试案例： 输入： select * from table1,table2; 输出： select * to table_replaced,table_replaced;

测试代码： SqlParserMain.kt SqlParserListener.kt