feat: #190 improve mysql grammer (#196)

* refactor: generic rename to mysql

* refactor: g4 with mysql syntax

* test: mysql syntax

* refactor: remove useless keywords

* refactor: remove nonReserved keywords

* refactor: lint specificFunction

---------

Co-authored-by: liuyi <liuyi@dtstack.com>

src/grammar/generic/README.md

@@ -1,3 +0,0 @@
-# MySQL Grammar
-
-[MySQL Grammar](https://github.com/mysql/mysql-workbench/tree/8.0/library/parsers/grammars)

src/index.ts

@@ -2,8 +2,8 @@ export * from './parser';
 export * from './utils';
 export * from './lib/flinksql/FlinkSqlParserListener';
 export * from './lib/flinksql/FlinkSqlParserVisitor';
-export * from './lib/generic/SqlParserVisitor';
-export * from './lib/generic/SqlParserListener';
+export * from './lib/mysql/MySqlParserVisitor';
+export * from './lib/mysql/MySqlParserListener';
 export * from './lib/hive/HiveSqlParserListener';
 export * from './lib/hive/HiveSqlParserVisitor';
 export * from './lib/plsql/PlSqlParserListener';

src/parser/index.ts

@@ -1,4 +1,4 @@
-export { default as GenericSQL } from './generic';
+export { default as MySQL } from './mysql';
 export { default as PLSQL } from './plsql';
 export { default as HiveSQL } from './hive';
 export { default as FlinkSQL } from './flinksql';

src/parser/mysql.ts

@@ -1,18 +1,18 @@
 import { Token } from 'antlr4ts';
 import { CandidatesCollection } from 'antlr4-c3';
-import { SqlLexer } from '../lib/generic/SqlLexer';
-import { SqlParser, ProgramContext } from '../lib/generic/SqlParser';
+import { MySqlLexer } from '../lib/mysql/MySqlLexer';
+import { MySqlParser, ProgramContext } from '../lib/mysql/MySqlParser';
 import BasicParser from './common/basicParser';
 import { Suggestions } from './common/basic-parser-types';
 
-export default class GenericSQL extends BasicParser<SqlLexer, ProgramContext, SqlParser> {
-    protected createLexerFormCharStream(charStreams): SqlLexer {
-        const lexer = new SqlLexer(charStreams);
+export default class MySQL extends BasicParser<MySqlLexer, ProgramContext, MySqlParser> {
+    protected createLexerFormCharStream(charStreams): MySqlLexer {
+        const lexer = new MySqlLexer(charStreams);
         return lexer;
     }
 
-    protected createParserFromTokenStream(tokenStream): SqlParser {
-        return new SqlParser(tokenStream);
+    protected createParserFromTokenStream(tokenStream): MySqlParser {
+        return new MySqlParser(tokenStream);
     }
 
     protected preferredRules: Set<number> = new Set();