mirror of
https://gitee.com/wangbin579/cetus.git
synced 2024-11-30 10:57:37 +08:00
299 lines
10 KiB
Plaintext
299 lines
10 KiB
Plaintext
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%{
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#include <stdio.h>
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#include <glib.h>
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#include "myparser.y.h"
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%}
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%option reentrant
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%option noyywrap
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%option never-interactive
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/*yyin and yyout set to NULL*/
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%option nostdinit
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/*%option outfile="mylexer.c" header-file="mylexer.h"*/
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%option nodefault
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%option warn
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%option case-insensitive
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%x PROPERTY
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%x COMMENT
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%x MYSQL_HINT
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HEX_DIGIT [0-9a-fA-F]
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%%
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[ \t\r\n]+ /* ignore whitespace */;
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";" return TK_SEMI;
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"(" return TK_LP ;
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")" return TK_RP ;
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"," return TK_COMMA ;
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"<>" return TK_NE ;
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"!=" return TK_NE ;
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"=" return TK_EQ ;
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"==" return TK_EQ ;
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">" return TK_GT ;
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"<=" return TK_LE ;
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"<" return TK_LT ;
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">=" return TK_GE ;
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"&" return TK_BITAND ;
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"|" return TK_BITOR ;
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"~" return TK_BITNOT ;
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"<<" return TK_LSHIFT ;
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">>" return TK_RSHIFT ;
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"+" return TK_PLUS ;
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"-" return TK_MINUS ;
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"*" return TK_STAR ;
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"/" return TK_SLASH ;
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"%" return TK_REM ; /*REMAIN */
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"." return TK_DOT ;
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"?" return TK_VARIABLE ;
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"TABLE" return TK_TABLE ;
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"CREATE" return TK_CREATE ;
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"IF" return TK_IF ;
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"NOT" return TK_NOT ;
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"!" return TK_NOT;
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"EXISTS" return TK_EXISTS ;
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"TEMP" return TK_TEMP ;
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"AS" return TK_AS ;
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"WITHOUT" return TK_WITHOUT ;
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"OR" return TK_OR ;
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"||" return TK_OR;
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"AND" return TK_AND ;
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"&&" return TK_AND;
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"IS" return TK_IS ;
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"MATCH" return TK_MATCH ;
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"LIKE" return TK_LIKE_KW ;
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"REGEXP" return TK_LIKE_KW;
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"BETWEEN" return TK_BETWEEN ;
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"IN" return TK_IN ;
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/*"ISNULL" return TK_ISNULL ;*/
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/*"NOTNULL" return TK_NOTNULL ;*/
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/*"||" return TK_CONCAT ;*/ /*for ansi sql_mode*/
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"COLLATE" return TK_COLLATE ;
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"ABORT" return TK_ABORT ;
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"ACTION" return TK_ACTION ;
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"AFTER" return TK_AFTER ;
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"ANALYZE" return TK_ANALYZE ;
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"ASC" return TK_ASC ;
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"ATTACH" return TK_ATTACH ;
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"BEFORE" return TK_BEFORE ;
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"BEGIN" return TK_BEGIN;
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"BY" return TK_BY ;
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"CASCADE" return TK_CASCADE ;
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"CAST" return TK_CAST ;
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"COLUMN" return TK_COLUMNKW ;
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"CONFLICT" return TK_CONFLICT ;
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"DATABASE" return TK_DATABASE ;
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"SCHEMA" return TK_SCHEMA;
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"DESC" return TK_DESC ;
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"DETACH" return TK_DETACH ;
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"EACH" return TK_EACH ;
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"END" return TK_END ;
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"FAIL" return TK_FAIL ;
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"FOR" return TK_FOR ;
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"IGNORE" return TK_IGNORE ;
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"INITIALLY" return TK_INITIALLY ;
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"INSTEAD" return TK_INSTEAD ;
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"NO" return TK_NO ;
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"PLAN" return TK_PLAN ;
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"QUERY" return TK_QUERY ;
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"KEY" return TK_KEY ;
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"OF" return TK_OF ;
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"TO" return TK_TO;
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"OFFSET" return TK_OFFSET ;
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"PRAGMA" return TK_PRAGMA ;
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"RAISE" return TK_RAISE ;
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"RECURSIVE" return TK_RECURSIVE ;
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"RELEASE" return TK_RELEASE ;
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"REPLACE" return TK_REPLACE ;
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"RESTRICT" return TK_RESTRICT ;
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"ROW" return TK_ROW ;
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"TRANSACTION" return TK_TRANSACTION;
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"START" return TK_START;
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"COMMIT" return TK_COMMIT;
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"ROLLBACK" return TK_ROLLBACK ;
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"SAVEPOINT" return TK_SAVEPOINT ;
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"TRIGGER" return TK_TRIGGER ;
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"VACUUM" return TK_VACUUM ;
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"VIEW" return TK_VIEW ;
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"VIRTUAL" return TK_VIRTUAL ;
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"WITH" return TK_WITH ;
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"INDEX" return TK_INDEX ;
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"RENAME" return TK_RENAME ;
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/*
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"DATE" return TK_CTIME_KW ;
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"TIME" return TK_CTIME_KW ;
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"NOW" return TK_CTIME_KW ;
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"TIMESTAMP" return TK_CTIME_KW ;
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"TIMEDIFF" return TK_CTIME_KW ;
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*/
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"LEFT" return TK_JOIN_KW;
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"RIGHT" return TK_JOIN_KW;
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"INNER" return TK_JOIN_KW;
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"OUTER" return TK_JOIN_KW;
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"FULL" return TK_JOIN_KW;
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"ANY" return TK_ANY ;
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"CONSTRAINT" return TK_CONSTRAINT ;
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"DEFAULT" return TK_DEFAULT ;
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"CHECK" return TK_CHECK ;
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"AUTO_INCREMENT" return TK_AUTO_INCREMENT ;
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"PRIMARY" return TK_PRIMARY ;
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"UNIQUE" return TK_UNIQUE ;
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"FOREIGN" return TK_FOREIGN ;
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"DROP" return TK_DROP ;
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"SELECT" return TK_SELECT ;
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"DISTINCT" return TK_DISTINCT ;
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"FROM" return TK_FROM ;
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"JOIN" return TK_JOIN ;
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"ON" return TK_ON ;
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"USING" return TK_USING ;
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"ORDER" return TK_ORDER ;
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"GROUP" return TK_GROUP ;
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"HAVING" return TK_HAVING ;
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"LIMIT" return TK_LIMIT ;
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"DELETE" return TK_DELETE ;
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"WHERE" return TK_WHERE ;
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"UPDATE" return TK_UPDATE ;
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"SET" return TK_SET ;
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"INTO" return TK_INTO ;
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"VALUES" return TK_VALUES ;
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"INSERT" return TK_INSERT ;
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"NULL" return TK_NULL ;
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"BLOB" return TK_BLOB ;
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"CASE" return TK_CASE ;
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"WHEN" return TK_WHEN ;
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"THEN" return TK_THEN ;
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"ELSE" return TK_ELSE ;
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"EXPLAIN" return TK_EXPLAIN;
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"DESCRIBE" return TK_DESCRIBE;
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"SHOW" return TK_SHOW;
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"SQL_CALC_FOUND_ROWS" return TK_SQL_CALC_FOUND_ROWS;
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"NAMES" return TK_NAMES;
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"USE" return TK_USE;
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"CALL" return TK_CALL;
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"CHARACTER" return TK_CHARACTER;
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"CHARSET" return TK_CHARSET;
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"SESSION" return TK_SESSION;
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"GLOBAL" return TK_GLOBAL;
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"KILL" return TK_KILL;
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"READ" return TK_READ;
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"WRITE" return TK_WRITE;
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"ONLY" return TK_ONLY;
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"UNION" return TK_UNION;
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"ALL" return TK_ALL;
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"DUPLICATE" return TK_DUPLICATE;
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"INTERVAL" return TK_INTERVAL;
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"DAY" return TK_TIME_UNIT;
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"MONTH" return TK_TIME_UNIT;
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"YEAR" return TK_TIME_UNIT;
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"HOUR" return TK_TIME_UNIT;
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"MINUTE" return TK_TIME_UNIT;
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"SECOND" return TK_TIME_UNIT;
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"SHARD_EXPLAIN" return TK_SHARD_EXPLAIN;
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"ALTER" return TK_ALTER;
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"FORCE" return TK_FORCE;
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"COLUMNS" return TK_COLUMNS;
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"FIELDS" return TK_FIELDS;
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"COMMENT" return TK_COMMENT_KW;
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"LOCK" return TK_LOCK;/*R*/
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"SHARE" return TK_SHARE;
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"MODE" return TK_MODE;
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"UNLOCK" return TK_UNLOCK;/*R*/
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"TABLES" return TK_TABLES;
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"LOCAL" return TK_LOCAL;
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"LOW_PRIORITY" return TK_LOW_PRIORITY;/*R*/
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"ISOLATION" return TK_ISOLATION;
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"LEVEL" return TK_LEVEL;
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"COMMITTED" return TK_COMMITTED;
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"UNCOMMITTED" return TK_UNCOMMITTED;
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"SERIALIZABLE" return TK_SERIALIZABLE;
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"REPEATABLE" return TK_REPEATABLE;
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"TRIM" return TK_TRIM;
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"BOTH" return TK_TRIM_SPEC;
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"LEADING" return TK_TRIM_SPEC;
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"TRAILING" return TK_TRIM_SPEC;
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"POSITION" return TK_POSITION;
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"TRUNCATE" return TK_TRUNCATE;
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"XA" return TK_XA;
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"RECOVER" return TK_RECOVER;
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"CURRENT_DATE" return TK_CURRENT_DATE;
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"SIGNED" return TK_SIGNED;
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"UNSIGNED" return TK_UNSIGNED;
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"DECIMAL" return TK_DECIMAL;
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"BINARY" return TK_BINARY;
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"NCHAR" return TK_NCHAR;
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"INT" return TK_INT_SYM;
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"ESCAPE" return TK_ESCAPE;
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"CETUS_SEQUENCE" return TK_CETUS_SEQUENCE;
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"CETUS_VERSION" return TK_CETUS_VERSION;
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"WARNINGS" return TK_WARNINGS;
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[0-9]+ return TK_INTEGER; /*sign symbol is handled in parser*/
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0[xX]{HEX_DIGIT}+ return TK_INTEGER;
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[xX]'({HEX_DIGIT}{HEX_DIGIT})+' return TK_HEX_NUM; /* X'even num of digit' */
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0b[01]+ return TK_BIN_NUM;
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[bB]'[01]+' return TK_BIN_NUM;
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[0-9]*\.[0-9]+([eE][-+]?[0-9]+)? return TK_FLOAT;
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[a-zA-Z][a-zA-Z0-9_]* return TK_ID;
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"@" return TK_AT_SIGN;
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'([^'\\]|\\.|'')*' return TK_STRING;
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\"([^"\\]|\"\"|\\.)*\" return TK_STRING;
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`([^`]|``)*` return TK_ID;
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"/*#" { BEGIN(PROPERTY); return TK_PROPERTY_START;}
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<PROPERTY>[a-zA-Z0-9_.-]+ return TK_ID;
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<PROPERTY>"=" return TK_EQ;
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<PROPERTY>\"([^"\\]|\"\"|\\.)*\" return TK_STRING;
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<PROPERTY>'([^'\\]|\\.|'')*' return TK_STRING;
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<PROPERTY>[ \t\n\r,;]+ /* ignore */
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<PROPERTY>. { g_warning("### bad char in property comment: %02x\n", yytext[0]);}
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<PROPERTY>"*"+"/" { BEGIN(INITIAL); return TK_PROPERTY_END;}
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"/*" { BEGIN(COMMENT); }
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<COMMENT>[^*]*
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<COMMENT>"*"+[^*/]*
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<COMMENT>"*"+"/" { BEGIN(INITIAL); }
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"/*!" { BEGIN(MYSQL_HINT); }
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<MYSQL_HINT>[^*]*
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<MYSQL_HINT>"*"+[^*/]*
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<MYSQL_HINT>"*"+"/" { BEGIN(INITIAL); return TK_MYSQL_HINT;}
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"#".* { /* useless comment */ }
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"--"[ \t\n].* { /* useless comment */ }
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. {g_warning("### flex: bad input character: %02x\n", yytext[0]);return 0;}
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%%
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/*hack function to restore user allocated string.
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input string will be modified in the process of lexing
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the string will be restored in the end of lexing, however,
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if we break in the middle of lex process, the input
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string will be left dirty, flex does not supply a
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function to restore it. we use this function as a hack,
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its declaration is in sql-expression.h
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*/
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void yylex_restore_buffer(void* yyscanner)
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{
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struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
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if ( YY_CURRENT_BUFFER )
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{
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/* Flush out information for old buffer. */
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*yyg->yy_c_buf_p = yyg->yy_hold_char;
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YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
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YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
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}
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}
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