630 lines
26 KiB
PHP
630 lines
26 KiB
PHP
<?php
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namespace SqlParser;
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/**
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* Default MySQL context (based on MySQL 5.7).
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*
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* @category Contexts
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* @package SqlParser
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* @author Dan Ungureanu <udan1107@gmail.com>
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* @license http://opensource.org/licenses/GPL-2.0 GNU Public License
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*/
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abstract class Context
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{
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/**
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* The maximum length of a keyword.
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*
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* @see static::$TOKEN_KEYWORD
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*
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* @var int
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*/
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const KEYWORD_MAX_LENGTH = 30;
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/**
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* The maximum length of an operator.
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*
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* @see static::$TOKEN_OPERATOR
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*
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* @var int
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*/
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const OPERATOR_MAX_LENGTH = 4;
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/**
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* The name of the default content.
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*
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* @var string
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*/
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public static $defaultContext = '\\SqlParser\\Contexts\\Context_MySQL50700';
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/**
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* The name of the loaded context.
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*
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* @var string
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*/
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public static $loadedContext = '\\SqlParser\\Contexts\\Context_MySQL50700';
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// -------------------------------------------------------------------------
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// Keywords.
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/**
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* List of keywords.
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*
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* Because, PHP's associative arrays are basically hash tables, it is more
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* efficient to store keywords as keys instead of values.
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*
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* There are multiple types of keyword, depending on the value associated:
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* 1 - reserved keywords
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* 2 - keyword
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* 3 - composite keyword (unofficial); used to make the job of the lexer
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* much easier by grouping keywords that may appear together
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*
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* Keywords below are sorted by type, length and keyword.
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*
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* @var array
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*/
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public static $KEYWORDS = array(
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'AS' => 1, 'BY' => 1, 'IF' => 1, 'IN' => 1, 'IS' => 1,
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'ON' => 1, 'OR' => 1, 'TO' => 1,
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'ADD' => 1, 'ALL' => 1, 'AND' => 1, 'ASC' => 1, 'DEC' => 1,
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'DIV' => 1, 'FOR' => 1, 'GET' => 1, 'INT' => 1, 'KEY' => 1,
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'MOD' => 1, 'NOT' => 1, 'OUT' => 1, 'SET' => 1, 'SQL' => 1,
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'SSL' => 1, 'USE' => 1, 'XOR' => 1,
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'BLOB' => 1, 'BOTH' => 1, 'CALL' => 1, 'CASE' => 1,
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'CHAR' => 1, 'DESC' => 1, 'DROP' => 1, 'DUAL' => 1,
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'EACH' => 1, 'ELSE' => 1, 'EXIT' => 1, 'FROM' => 1,
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'INT1' => 1, 'INT2' => 1, 'INT3' => 1, 'INT4' => 1,
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'INT8' => 1, 'INTO' => 1, 'JOIN' => 1, 'KEYS' => 1,
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'KILL' => 1, 'LEFT' => 1, 'LIKE' => 1, 'LOAD' => 1,
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'LOCK' => 1, 'LONG' => 1, 'LOOP' => 1, 'NULL' => 1,
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'READ' => 1, 'REAL' => 1, 'SHOW' => 1, 'THEN' => 1,
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'TRUE' => 1, 'UNDO' => 1, 'WHEN' => 1, 'WITH' => 1,
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'ALTER' => 1, 'CHECK' => 1, 'CROSS' => 1, 'FALSE' => 1,
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'FETCH' => 1, 'FLOAT' => 1, 'FORCE' => 1, 'GRANT' => 1,
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'GROUP' => 1, 'INDEX' => 1, 'INNER' => 1, 'INOUT' => 1,
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'LEAVE' => 1, 'LIMIT' => 1, 'LINES' => 1, 'MATCH' => 1,
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'ORDER' => 1, 'OUTER' => 1, 'PURGE' => 1, 'RANGE' => 1,
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'READS' => 1, 'RIGHT' => 1, 'RLIKE' => 1, 'TABLE' => 1,
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'UNION' => 1, 'USAGE' => 1, 'USING' => 1, 'WHERE' => 1,
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'WHILE' => 1, 'WRITE' => 1,
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'BEFORE' => 1, 'BIGINT' => 1, 'BINARY' => 1, 'CHANGE' => 1,
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'COLUMN' => 1, 'CREATE' => 1, 'CURSOR' => 1, 'DELETE' => 1,
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'DOUBLE' => 1, 'ELSEIF' => 1, 'EXISTS' => 1, 'FLOAT4' => 1,
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'FLOAT8' => 1, 'HAVING' => 1, 'IGNORE' => 1, 'INFILE' => 1,
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'INSERT' => 1, 'LINEAR' => 1, 'OPTION' => 1, 'REGEXP' => 1,
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'RENAME' => 1, 'REPEAT' => 1, 'RETURN' => 1, 'REVOKE' => 1,
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'SCHEMA' => 1, 'SELECT' => 1, 'SIGNAL' => 1, 'STORED' => 1,
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'UNIQUE' => 1, 'UNLOCK' => 1, 'UPDATE' => 1, 'VALUES' => 1,
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'ANALYZE' => 1, 'BETWEEN' => 1, 'CASCADE' => 1, 'COLLATE' => 1,
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'CONVERT' => 1, 'DECIMAL' => 1, 'DECLARE' => 1, 'DEFAULT' => 1,
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'DELAYED' => 1, 'ESCAPED' => 1, 'EXPLAIN' => 1, 'FOREIGN' => 1,
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'INTEGER' => 1, 'ITERATE' => 1, 'LEADING' => 1, 'NATURAL' => 1,
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'NUMERIC' => 1, 'OUTFILE' => 1, 'PRIMARY' => 1, 'RELEASE' => 1,
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'REPLACE' => 1, 'REQUIRE' => 1, 'SCHEMAS' => 1, 'SPATIAL' => 1,
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'TINYINT' => 1, 'TRIGGER' => 1, 'VARCHAR' => 1, 'VARYING' => 1,
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'VIRTUAL' => 1,
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'CONTINUE' => 1, 'DATABASE' => 1, 'DAY_HOUR' => 1,
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'DESCRIBE' => 1, 'DISTINCT' => 1, 'ENCLOSED' => 1,
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'FULLTEXT' => 1, 'INTERVAL' => 1, 'LONGBLOB' => 1,
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'LONGTEXT' => 1, 'MAXVALUE' => 1, 'MODIFIES' => 1,
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'OPTIMIZE' => 1, 'RESIGNAL' => 1, 'RESTRICT' => 1,
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'SMALLINT' => 1, 'SPECIFIC' => 1, 'SQLSTATE' => 1,
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'STARTING' => 1, 'TINYBLOB' => 1, 'TINYTEXT' => 1,
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'TRAILING' => 1, 'UNSIGNED' => 1, 'UTC_DATE' => 1,
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'UTC_TIME' => 1, 'ZEROFILL' => 1,
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'CHARACTER' => 1, 'CONDITION' => 1, 'DATABASES' => 1,
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'GENERATED' => 1, 'LOCALTIME' => 1, 'MEDIUMINT' => 1,
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'MIDDLEINT' => 1, 'PARTITION' => 1, 'PRECISION' => 1,
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'PROCEDURE' => 1, 'SENSITIVE' => 1, 'SEPARATOR' => 1,
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'VARBINARY' => 1,
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'ACCESSIBLE' => 1, 'ASENSITIVE' => 1, 'CONSTRAINT' => 1,
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'DAY_MINUTE' => 1, 'DAY_SECOND' => 1, 'MEDIUMBLOB' => 1,
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'MEDIUMTEXT' => 1, 'OPTIONALLY' => 1, 'READ_WRITE' => 1,
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'REFERENCES' => 1, 'SQLWARNING' => 1, 'TERMINATED' => 1,
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'YEAR_MONTH' => 1,
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'DISTINCTROW' => 1, 'HOUR_MINUTE' => 1, 'HOUR_SECOND' => 1,
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'INSENSITIVE' => 1, 'MASTER_BIND' => 1,
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'CURRENT_DATE' => 1, 'CURRENT_TIME' => 1, 'CURRENT_USER' => 1,
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'LOW_PRIORITY' => 1, 'SQLEXCEPTION' => 1, 'VARCHARACTER' => 1,
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'DETERMINISTIC' => 1, 'HIGH_PRIORITY' => 1, 'MINUTE_SECOND' => 1,
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'STRAIGHT_JOIN' => 1, 'UTC_TIMESTAMP' => 1,
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'IO_AFTER_GTIDS' => 1, 'LOCALTIMESTAMP' => 1, 'SQL_BIG_RESULT' => 1,
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'DAY_MICROSECOND' => 1, 'IO_BEFORE_GTIDS' => 1, 'OPTIMIZER_COSTS' => 1,
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'HOUR_MICROSECOND' => 1, 'SQL_SMALL_RESULT' => 1,
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'CURRENT_TIMESTAMP' => 1,
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'MINUTE_MICROSECOND' => 1, 'NO_WRITE_TO_BINLOG' => 1,
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'SECOND_MICROSECOND' => 1,
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'SQL_CALC_FOUND_ROWS' => 1,
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'MASTER_SSL_VERIFY_SERVER_CERT' => 1,
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'AT' => 2, 'DO' => 2, 'IO' => 2, 'NO' => 2, 'XA' => 2,
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'ANY' => 2, 'AVG' => 2, 'BIT' => 2, 'CPU' => 2, 'DAY' => 2, 'END' => 2,
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'IPC' => 2, 'NDB' => 2, 'NEW' => 2, 'ONE' => 2, 'ROW' => 2, 'XID' => 2,
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'XML' => 2,
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'BOOL' => 2, 'BYTE' => 2, 'CODE' => 2, 'CUBE' => 2, 'DATA' => 2, 'DATE' => 2,
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'DISK' => 2, 'ENDS' => 2, 'ENUM' => 2, 'FAST' => 2, 'FILE' => 2, 'FULL' => 2,
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'HASH' => 2, 'HELP' => 2, 'HOST' => 2, 'HOUR' => 2, 'LAST' => 2, 'LESS' => 2,
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'LIST' => 2, 'LOGS' => 2, 'MODE' => 2, 'NAME' => 2, 'NEXT' => 2, 'NONE' => 2,
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'ONLY' => 2, 'OPEN' => 2, 'PAGE' => 2, 'PORT' => 2, 'PREV' => 2, 'ROWS' => 2,
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'SLOW' => 2, 'SOME' => 2, 'STOP' => 2, 'TEXT' => 2, 'THAN' => 2, 'TIME' => 2,
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'TYPE' => 2, 'USER' => 2, 'VIEW' => 2, 'WAIT' => 2, 'WEEK' => 2, 'WORK' => 2,
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'X509' => 2, 'YEAR' => 2,
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'AFTER' => 2, 'ASCII' => 2, 'BEGIN' => 2, 'BLOCK' => 2, 'BTREE' => 2,
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'CACHE' => 2, 'CHAIN' => 2, 'CLOSE' => 2, 'ERROR' => 2, 'EVENT' => 2,
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'EVERY' => 2, 'FIRST' => 2, 'FIXED' => 2, 'FLUSH' => 2, 'FOUND' => 2,
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'HOSTS' => 2, 'LEVEL' => 2, 'LOCAL' => 2, 'LOCKS' => 2, 'MERGE' => 2,
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'MONTH' => 2, 'MUTEX' => 2, 'NAMES' => 2, 'NCHAR' => 2, 'NEVER' => 2,
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'OWNER' => 2, 'PHASE' => 2, 'POINT' => 2, 'PROXY' => 2, 'QUERY' => 2,
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'QUICK' => 2, 'RELAY' => 2, 'RESET' => 2, 'RTREE' => 2, 'SHARE' => 2,
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'SLAVE' => 2, 'START' => 2, 'SUPER' => 2, 'SWAPS' => 2, 'TYPES' => 2,
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'UNTIL' => 2, 'VALUE' => 2,
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'ACTION' => 2, 'ALWAYS' => 2, 'BACKUP' => 2, 'BINLOG' => 2, 'CIPHER' => 2,
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'CLIENT' => 2, 'COMMIT' => 2, 'ENABLE' => 2, 'ENGINE' => 2, 'ERRORS' => 2,
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'ESCAPE' => 2, 'EVENTS' => 2, 'EXPIRE' => 2, 'EXPORT' => 2, 'FAULTS' => 2,
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'FIELDS' => 2, 'FILTER' => 2, 'FORMAT' => 2, 'GLOBAL' => 2, 'GRANTS' => 2,
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'IMPORT' => 2, 'ISSUER' => 2, 'LEAVES' => 2, 'MASTER' => 2, 'MEDIUM' => 2,
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'MEMORY' => 2, 'MINUTE' => 2, 'MODIFY' => 2, 'NUMBER' => 2, 'OFFSET' => 2,
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'PARSER' => 2, 'PLUGIN' => 2, 'RELOAD' => 2, 'REMOVE' => 2, 'REPAIR' => 2,
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'RESUME' => 2, 'ROLLUP' => 2, 'SECOND' => 2, 'SERIAL' => 2, 'SERVER' => 2,
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'SIGNED' => 2, 'SIMPLE' => 2, 'SOCKET' => 2, 'SONAME' => 2, 'SOUNDS' => 2,
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'SOURCE' => 2, 'STARTS' => 2, 'STATUS' => 2, 'STRING' => 2, 'TABLES' => 2,
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'ACCOUNT' => 2, 'AGAINST' => 2, 'ANALYSE' => 2, 'BOOLEAN' => 2, 'CHANGED' => 2,
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'CHANNEL' => 2, 'CHARSET' => 2, 'COLUMNS' => 2, 'COMMENT' => 2, 'COMPACT' => 2,
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'CONTEXT' => 2, 'CURRENT' => 2, 'DEFINER' => 2, 'DISABLE' => 2, 'DISCARD' => 2,
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'DYNAMIC' => 2, 'ENGINES' => 2, 'EXECUTE' => 2, 'FOLLOWS' => 2, 'GENERAL' => 2,
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'HANDLER' => 2, 'INDEXES' => 2, 'INSTALL' => 2, 'INVOKER' => 2, 'LOGFILE' => 2,
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'MIGRATE' => 2, 'NO_WAIT' => 2, 'OPTIONS' => 2, 'PARTIAL' => 2, 'PLUGINS' => 2,
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'POLYGON' => 2, 'PREPARE' => 2, 'PROFILE' => 2, 'QUARTER' => 2, 'REBUILD' => 2,
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'RECOVER' => 2, 'RESTORE' => 2, 'RETURNS' => 2, 'REVERSE' => 2, 'ROUTINE' => 2,
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'SESSION' => 2, 'STACKED' => 2, 'STORAGE' => 2, 'SUBJECT' => 2, 'SUSPEND' => 2,
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'UNICODE' => 2, 'UNKNOWN' => 2, 'UPGRADE' => 2, 'USE_FRM' => 2, 'WITHOUT' => 2,
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'WRAPPER' => 2,
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'CASCADED' => 2, 'CHECKSUM' => 2, 'COALESCE' => 2, 'CONTAINS' => 2,
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'DATAFILE' => 2, 'DATETIME' => 2, 'DUMPFILE' => 2, 'EXCHANGE' => 2,
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'EXTENDED' => 2, 'FUNCTION' => 2, 'GEOMETRY' => 2, 'LANGUAGE' => 2,
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'MAX_ROWS' => 2, 'MAX_SIZE' => 2, 'MIN_ROWS' => 2, 'NATIONAL' => 2,
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'NVARCHAR' => 2, 'PASSWORD' => 2, 'PRECEDES' => 2, 'PRESERVE' => 2,
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'PROFILES' => 2, 'REDOFILE' => 2, 'RELAYLOG' => 2, 'ROLLBACK' => 2,
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'SCHEDULE' => 2, 'SECURITY' => 2, 'SHUTDOWN' => 2, 'SNAPSHOT' => 2,
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'SWITCHES' => 2, 'TRIGGERS' => 2, 'TRUNCATE' => 2, 'UNDOFILE' => 2,
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'WARNINGS' => 2,
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'AGGREGATE' => 2, 'ALGORITHM' => 2, 'COLLATION' => 2, 'COMMITTED' => 2,
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'DIRECTORY' => 2, 'DUPLICATE' => 2, 'EXPANSION' => 2, 'IO_THREAD' => 2,
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'ISOLATION' => 2, 'NODEGROUP' => 2, 'PACK_KEYS' => 2, 'READ_ONLY' => 2,
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'REDUNDANT' => 2, 'ROW_COUNT' => 2, 'SAVEPOINT' => 2, 'SQL_CACHE' => 2,
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'TEMPORARY' => 2, 'TEMPTABLE' => 2, 'TIMESTAMP' => 2, 'UNDEFINED' => 2,
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'UNINSTALL' => 2, 'VARIABLES' => 2,
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'COMPLETION' => 2, 'COMPRESSED' => 2, 'CONCURRENT' => 2, 'CONNECTION' => 2,
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'CONSISTENT' => 2, 'DEALLOCATE' => 2, 'GET_FORMAT' => 2, 'IDENTIFIED' => 2,
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'LINESTRING' => 2, 'MASTER_SSL' => 2, 'MULTIPOINT' => 2, 'NDBCLUSTER' => 2,
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'PARTITIONS' => 2, 'PLUGIN_DIR' => 2, 'PRIVILEGES' => 2, 'REORGANIZE' => 2,
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'REPEATABLE' => 2, 'ROW_FORMAT' => 2, 'SQL_THREAD' => 2, 'TABLESPACE' => 2,
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'TABLE_NAME' => 2, 'VALIDATION' => 2,
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'COLUMN_NAME' => 2, 'COMPRESSION' => 2, 'CURSOR_NAME' => 2, 'DIAGNOSTICS' => 2,
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'EXTENT_SIZE' => 2, 'MASTER_HOST' => 2, 'MASTER_PORT' => 2, 'MASTER_USER' => 2,
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'MICROSECOND' => 2, 'MYSQL_ERRNO' => 2, 'NONBLOCKING' => 2, 'PROCESSLIST' => 2,
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'REPLICATION' => 2, 'SCHEMA_NAME' => 2, 'SQL_TSI_DAY' => 2, 'TRANSACTION' => 2,
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'UNCOMMITTED' => 2,
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'CATALOG_NAME' => 2, 'CLASS_ORIGIN' => 2, 'DEFAULT_AUTH' => 2,
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'DES_KEY_FILE' => 2, 'INITIAL_SIZE' => 2, 'MASTER_DELAY' => 2,
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'MESSAGE_TEXT' => 2, 'MULTIPOLYGON' => 2, 'OLD_PASSWORD' => 2,
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'PARTITIONING' => 2, 'RELAY_THREAD' => 2, 'SERIALIZABLE' => 2,
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'SQL_NO_CACHE' => 2, 'SQL_TSI_HOUR' => 2, 'SQL_TSI_WEEK' => 2,
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'SQL_TSI_YEAR' => 2, 'SUBPARTITION' => 2, 'TIMESTAMPADD' => 2,
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'COLUMN_FORMAT' => 2, 'INSERT_METHOD' => 2, 'MASTER_SSL_CA' => 2,
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'RELAY_LOG_POS' => 2, 'SQL_TSI_MONTH' => 2, 'SUBPARTITIONS' => 2,
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'TIMESTAMPDIFF' => 2, 'WEIGHT_STRING' => 2,
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'AUTO_INCREMENT' => 2, 'AVG_ROW_LENGTH' => 2, 'KEY_BLOCK_SIZE' => 2,
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'MASTER_LOG_POS' => 2, 'MASTER_SSL_CRL' => 2, 'MASTER_SSL_KEY' => 2,
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'RELAY_LOG_FILE' => 2, 'SQL_TSI_MINUTE' => 2, 'SQL_TSI_SECOND' => 2,
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'TABLE_CHECKSUM' => 2, 'USER_RESOURCES' => 2,
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'AUTOEXTEND_SIZE' => 2, 'CONSTRAINT_NAME' => 2, 'DELAY_KEY_WRITE' => 2,
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'FILE_BLOCK_SIZE' => 2, 'MASTER_LOG_FILE' => 2, 'MASTER_PASSWORD' => 2,
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'MASTER_SSL_CERT' => 2, 'MULTILINESTRING' => 2, 'PARSE_GCOL_EXPR' => 2,
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'REPLICATE_DO_DB' => 2, 'SQL_AFTER_GTIDS' => 2, 'SQL_TSI_QUARTER' => 2,
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'SUBCLASS_ORIGIN' => 2,
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'MASTER_SERVER_ID' => 2, 'REDO_BUFFER_SIZE' => 2, 'SQL_BEFORE_GTIDS' => 2,
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'STATS_PERSISTENT' => 2, 'UNDO_BUFFER_SIZE' => 2,
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'CONSTRAINT_SCHEMA' => 2, 'GROUP_REPLICATION' => 2, 'IGNORE_SERVER_IDS' => 2,
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'MASTER_SSL_CAPATH' => 2, 'MASTER_SSL_CIPHER' => 2, 'RETURNED_SQLSTATE' => 2,
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'SQL_BUFFER_RESULT' => 2, 'STATS_AUTO_RECALC' => 2,
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'CONSTRAINT_CATALOG' => 2, 'GEOMETRYCOLLECTION' => 2, 'MASTER_RETRY_COUNT' => 2,
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'MASTER_SSL_CRLPATH' => 2, 'MAX_STATEMENT_TIME' => 2, 'REPLICATE_DO_TABLE' => 2,
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'SQL_AFTER_MTS_GAPS' => 2, 'STATS_SAMPLE_PAGES' => 2,
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'REPLICATE_IGNORE_DB' => 2,
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'MASTER_AUTO_POSITION' => 2, 'MASTER_CONNECT_RETRY' => 2,
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'MAX_QUERIES_PER_HOUR' => 2, 'MAX_UPDATES_PER_HOUR' => 2,
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'MAX_USER_CONNECTIONS' => 2, 'REPLICATE_REWRITE_DB' => 2,
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'REPLICATE_IGNORE_TABLE' => 2,
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'MASTER_HEARTBEAT_PERIOD' => 2, 'REPLICATE_WILD_DO_TABLE' => 2,
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'MAX_CONNECTIONS_PER_HOUR' => 2,
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'REPLICATE_WILD_IGNORE_TABLE' => 2,
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'NOT NULL' => 4,
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'INDEX KEY' => 4,
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'UNIQUE KEY' => 4,
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'FOREIGN KEY' => 4, 'PRIMARY KEY' => 4, 'PRIMARY KEY' => 4, 'SPATIAL KEY' => 4,
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'FULLTEXT KEY' => 4, 'UNIQUE INDEX' => 4,
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'CHARACTER SET' => 4, 'IF NOT EXISTS' => 4, 'SPATIAL INDEX' => 4,
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'DATA DIRECTORY' => 4, 'FULLTEXT INDEX' => 4,
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'DEFAULT COLLATE' => 4, 'INDEX DIRECTORY' => 4,
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'DEFAULT CHARACTER SET' => 4,
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);
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// -------------------------------------------------------------------------
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// Keys and Data Types.
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/**
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* Types of keys.
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*
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* @var array
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*/
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public static $KEY_TYPES = array(
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'FOREIGN KEY' => 1, 'FULLTEXT INDEX' => 1, 'FULLTEXT KEY' => 1,
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'INDEX KEY' => 1, 'INDEX' => 1, 'KEY' => 1, 'PRIMARY KEY' => 1,
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'SPATIAL INDEX' => 1, 'SPATIAL KEY' => 1, 'UNIQUE INDEX' => 1,
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'UNIQUE KEY' => 1, 'UNIQUE' => 1,
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);
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/**
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* All data types.
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*
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* @var array
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*/
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public static $DATA_TYPES = array(
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'ARRAY' => 1, 'BIGINT' => 1, 'BINARY' => 1, 'BINARY VARYING' => 1,
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'BLOB' => 1, 'BOOLEAN' => 1, 'CHAR' => 1, 'CHARACTER' => 1, 'DATE' => 1,
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'DATETIME' => 1, 'DECIMAL' => 1, 'DOUBLE' => 1, 'ENUM' => 1,
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'FLOAT' => 1, 'INT' => 1, 'INTEGER' => 1, 'INTERVAL' => 1,
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'LONGBLOB' => 1, 'LONGTEXT' => 1, 'MEDIUMBLOB' => 1, 'MEDIUMINT' => 1,
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'MEDIUMTEXT' => 1, 'MULTISET' => 1, 'NUMERIC' => 1, 'REAL' => 1,
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'SET' => 1, 'SMALLINT' => 1, 'TEXT' => 1, 'TIME' => 1, 'TIMESTAMP' => 1,
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'TINYBLOB' => 1, 'TINYINT' => 1, 'TINYTEXT' => 1, 'VARBINARY' => 1,
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'VARCHAR' => 1, 'XML' => 1, 'YEAR' => 1
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);
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// -------------------------------------------------------------------------
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// Operators.
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/**
|
|
* List of operators and their flags.
|
|
*
|
|
* @var array
|
|
*/
|
|
public static $OPERATORS = array(
|
|
|
|
// Some operators (*, =) may have ambigous flags, because they depend on
|
|
// the context they are being used in.
|
|
// For example: 1. SELECT * FROM table; # SQL specific (wildcard)
|
|
// SELECT 2 * 3; # arithmetic
|
|
// 2. SELECT * FROM table WHERE foo = 'bar';
|
|
// SET @i = 0;
|
|
|
|
// @see Token::FLAG_OPERATOR_ARITHMETIC
|
|
'%' => 1, '*' => 1, '+' => 1, '-' => 1, '/' => 1,
|
|
|
|
// @see Token::FLAG_OPERATOR_LOGICAL
|
|
'!' => 2, '!==' => 2, '&&' => 2, '<' => 2, '<=' => 2,
|
|
'<=>' => 2, '<>' => 2, '=' => 2, '>' => 2, '>=' => 2,
|
|
'||' => 2,
|
|
|
|
// @see Token::FLAG_OPERATOR_BITWISE
|
|
'&' => 4, '<<' => 4, '>>' => 4, '^' => 4, '|' => 4,
|
|
'~' => 4,
|
|
|
|
// @see Token::FLAG_OPERATOR_ASSIGNMENT
|
|
':=' => 8,
|
|
|
|
// @see Token::FLAG_OPERATOR_SQL
|
|
'(' => 16, ')' => 16, '.' => 16, ',' => 16,
|
|
);
|
|
|
|
// -------------------------------------------------------------------------
|
|
// SQL Modes.
|
|
|
|
/*
|
|
* Server SQL Modes
|
|
* https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html
|
|
*/
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_allow_invalid_dates
|
|
const ALLOW_INVALID_DATES = 1;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_ansi_quotes
|
|
const ANSI_QUOTES = 2;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_error_for_division_by_zero
|
|
const ERROR_FOR_DIVISION_BY_ZERO = 4;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_high_not_precedence
|
|
const HIGH_NOT_PRECEDENCE = 8;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_ignore_space
|
|
const IGNORE_SPACE = 16;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_auto_create_user
|
|
const NO_AUTO_CREATE_USER = 32;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_auto_value_on_zero
|
|
const NO_AUTO_VALUE_ON_ZERO = 64;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_backslash_escapes
|
|
const NO_BACKSLASH_ESCAPES = 128;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_dir_in_create
|
|
const NO_DIR_IN_CREATE = 256;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_dir_in_create
|
|
const NO_ENGINE_SUBSTITUTION = 512;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_field_options
|
|
const NO_FIELD_OPTIONS = 1024;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_key_options
|
|
const NO_KEY_OPTIONS = 2048;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_table_options
|
|
const NO_TABLE_OPTIONS = 4096;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_unsigned_subtraction
|
|
const NO_UNSIGNED_SUBTRACTION = 8192;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_zero_date
|
|
const NO_ZERO_DATE = 16384;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_no_zero_in_date
|
|
const NO_ZERO_IN_DATE = 32768;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_only_full_group_by
|
|
const ONLY_FULL_GROUP_BY = 65536;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_pipes_as_concat
|
|
const PIPES_AS_CONCAT = 131072;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_real_as_float
|
|
const REAL_AS_FLOAT = 262144;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_strict_all_tables
|
|
const STRICT_ALL_TABLES = 524288;
|
|
|
|
// https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_strict_trans_tables
|
|
const STRICT_TRANS_TABLES = 1048576;
|
|
|
|
/*
|
|
* Combination SQL Modes
|
|
* https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sql-mode-combo
|
|
*/
|
|
|
|
// REAL_AS_FLOAT, PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE
|
|
const SQL_MODE_ANSI = 393234;
|
|
|
|
// PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, NO_KEY_OPTIONS,
|
|
// NO_TABLE_OPTIONS, NO_FIELD_OPTIONS,
|
|
const SQL_MODE_DB2 = 138258;
|
|
|
|
// PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, NO_KEY_OPTIONS,
|
|
// NO_TABLE_OPTIONS, NO_FIELD_OPTIONS, NO_AUTO_CREATE_USER
|
|
const SQL_MODE_MAXDB = 138290;
|
|
|
|
// PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, NO_KEY_OPTIONS,
|
|
// NO_TABLE_OPTIONS, NO_FIELD_OPTIONS
|
|
const SQL_MODE_MSSQL = 138258;
|
|
|
|
// PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, NO_KEY_OPTIONS,
|
|
// NO_TABLE_OPTIONS, NO_FIELD_OPTIONS, NO_AUTO_CREATE_USER
|
|
const SQL_MODE_ORACLE = 138290;
|
|
|
|
// PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, NO_KEY_OPTIONS,
|
|
// NO_TABLE_OPTIONS, NO_FIELD_OPTIONS
|
|
const SQL_MODE_POSTGRESQL = 138258;
|
|
|
|
// STRICT_TRANS_TABLES, STRICT_ALL_TABLES, NO_ZERO_IN_DATE, NO_ZERO_DATE,
|
|
// ERROR_FOR_DIVISION_BY_ZERO, NO_AUTO_CREATE_USER
|
|
const SQL_MODE_TRADITIONAL = 1622052;
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Keyword.
|
|
|
|
/**
|
|
* Checks if the given string is a keyword.
|
|
*
|
|
* @param string $str String to be checked.
|
|
* @param bool $isReserved Checks if the keyword is reserved.
|
|
*
|
|
* @return int
|
|
*/
|
|
public static function isKeyword($str, $isReserved = false)
|
|
{
|
|
$str = strtoupper($str);
|
|
|
|
if (isset(static::$KEYWORDS[$str])) {
|
|
if ($isReserved) {
|
|
if (!(static::$KEYWORDS[$str] & Token::FLAG_KEYWORD_RESERVED)) {
|
|
return null;
|
|
}
|
|
}
|
|
return static::$KEYWORDS[$str];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Operator.
|
|
|
|
/**
|
|
* Checks if the given string is an operator.
|
|
*
|
|
* @param string $str String to be checked.
|
|
*
|
|
* @return int The appropriate flag for the operator.
|
|
*/
|
|
public static function isOperator($str)
|
|
{
|
|
if (!isset(static::$OPERATORS[$str])) {
|
|
return null;
|
|
}
|
|
return static::$OPERATORS[$str];
|
|
}
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Whitespace.
|
|
|
|
/**
|
|
* Checks if the given character is a whitespace.
|
|
*
|
|
* @param string $ch String to be checked.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function isWhitespace($ch)
|
|
{
|
|
return ($ch === ' ') || ($ch === "\r") || ($ch === "\n") || ($ch === "\t");
|
|
}
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Comment.
|
|
|
|
/**
|
|
* Checks if the given string is the beginning of a whitespace.
|
|
*
|
|
* @param string $str String to be checked.
|
|
*
|
|
* @return int The appropriate flag for the comment type.
|
|
*/
|
|
public static function isComment($str)
|
|
{
|
|
$len = strlen($str);
|
|
if ($str[0] === '#') {
|
|
return Token::FLAG_COMMENT_BASH;
|
|
} elseif (($len > 1) && ((($str[0] === '/') && ($str[1] === '*'))
|
|
|| (($str[0] === '*') && ($str[1] === '/')))
|
|
) {
|
|
return Token::FLAG_COMMENT_C;
|
|
} elseif (($len > 2) && ($str[0] === '-')
|
|
&& ($str[1] === '-') && ($str[2] !== "\n")
|
|
&& (static::isWhitespace($str[2]))
|
|
) {
|
|
return Token::FLAG_COMMENT_SQL;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Bool.
|
|
|
|
/**
|
|
* Checks if the given string is a boolean value.
|
|
* This actually check only for `TRUE` and `FALSE` because `1` or `0` are
|
|
* actually numbers and are parsed by specific methods.
|
|
*
|
|
* @param string $ch String to be checked.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function isBool($ch)
|
|
{
|
|
$ch = strtoupper($ch);
|
|
return ($ch === 'TRUE') || ($ch === 'FALSE');
|
|
}
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Number.
|
|
|
|
/**
|
|
* Checks if the given character can be a part of a number.
|
|
*
|
|
* @param string $ch String to be checked.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function isNumber($ch)
|
|
{
|
|
return (($ch >= '0') && ($ch <= '9')) || ($ch === '.')
|
|
|| ($ch === '-') || ($ch === '+') || ($ch === 'e') || ($ch === 'E');
|
|
}
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Symbol.
|
|
|
|
/**
|
|
* Checks if the given character is the beginning of a symbol. A symbol
|
|
* can be either a variable or a field name.
|
|
*
|
|
* @param string $ch String to be checked.
|
|
*
|
|
* @return int The appropriate flag for the symbol type.
|
|
*/
|
|
public static function isSymbol($ch)
|
|
{
|
|
if ($ch[0] === '@') {
|
|
return Token::FLAG_SYMBOL_VARIABLE;
|
|
} elseif ($ch[0] === '`') {
|
|
return Token::FLAG_SYMBOL_BACKTICK;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// -------------------------------------------------------------------------
|
|
// String.
|
|
|
|
/**
|
|
* Checks if the given character is the beginning of a string.
|
|
*
|
|
* @param string $str String to be checked.
|
|
*
|
|
* @return int The appropriate flag for the string type.
|
|
*/
|
|
public static function isString($str)
|
|
{
|
|
if ($str[0] === '\'') {
|
|
return Token::FLAG_STRING_SINGLE_QUOTES;
|
|
} elseif ($str[0] === '"') {
|
|
return Token::FLAG_STRING_DOUBLE_QUOTES;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Delimiter.
|
|
|
|
/**
|
|
* Checks if the given character can be a separator for two lexems.
|
|
*
|
|
* @param string $ch String to be checked.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function isSeparator($ch)
|
|
{
|
|
return !ctype_alnum($ch) && $ch !== '_';
|
|
}
|
|
|
|
/**
|
|
* Loads the specified context.
|
|
*
|
|
* Contexts may be used by accessing the context directly.
|
|
*
|
|
* @param string $context Name of the context or full class name that
|
|
* defines the context.
|
|
*
|
|
* @return void
|
|
*/
|
|
public static function load($context = '')
|
|
{
|
|
if (empty($context)) {
|
|
$context = self::$defaultContext;
|
|
}
|
|
if ($context[0] !== '\\') {
|
|
// Short context name (must be formatted into class name).
|
|
$context = '\\SqlParser\\Contexts\\Context_' . $context;
|
|
}
|
|
if (!class_exists($context)) {
|
|
throw new \Exception('Specified context ("' . $context . '") doesn\'t exist.');
|
|
}
|
|
static::$loadedContext = $context;
|
|
static::$KEYWORDS = $context::$KEYWORDS;
|
|
}
|
|
}
|
