Package com.alibaba.druid.sql.dialect.mysql.parser

Class MySqlLexer

java.lang.Object

com.alibaba.druid.sql.parser.Lexer

com.alibaba.druid.sql.dialect.mysql.parser.MySqlLexer

public class MySqlLexer
extends Lexer

Nested Class Summary

Nested classes/interfaces inherited from class com.alibaba.druid.sql.parser.Lexer

Lexer.CommentHandler, Lexer.SavePoint

Field Summary

Fields

Modifier and Type	Field	Description
static final Keywords	DEFAULT_MYSQL_KEYWORDS
static SymbolTable	quoteTable

Fields inherited from class com.alibaba.druid.sql.parser.Lexer

buf, bufPos, ch, commentCount, commentHandler, comments, dbType, endOfComment, features, hash, hashLCase, keepComments, keepSourceLocation, keywords, line, lines, mark, numberExp, numberSale, optimizedForParameterized, pos, posColumn, posLine, skipComment, startPos, stringVal, symbols_l2, text, timeZone, token

Constructor Summary

Constructors

Constructor	Description
MySqlLexer(char[] input, int inputLength, boolean skipComment)
MySqlLexer(String input)
MySqlLexer(String input, boolean skipComment, boolean keepComments)
MySqlLexer(String input, SQLParserFeature... features)

Method Summary

Modifier and Type	Method	Description
static boolean	isIdentifierChar(char c)
static boolean	isIdentifierCharForVariable(char c)	employee.code=:employee.code 解析异常 修复:变量名支持含符号.
void	scanComment()
void	scanIdentifier()
void	scanSharp()
protected final void	scanString()
void	scanVariable()
protected void	scanVariable_at()
void	skipFirstHintsOrMultiCommentAndNextToken()

Methods inherited from class com.alibaba.druid.sql.parser.Lexer

addComment, addSymbol, arraycopy, bp, charAt, computeRowAndColumn, config, current, decimalValue, getCommentCount, getCommentHandler, getComments, getDbType, getKeywords, getLine, getPosColumn, getPosLine, getSource, getTimeZone, hasComment, hashLCase, hexString, identifierEquals, identifierEquals, info, initBuff, integerValue, isAllowComment, isDigit, isDigit2, isEnabled, isEndOfComment, isEOF, isKeepComments, isNegativeIntegerValue, isSafeComment, lexError, mark, markOut, nextPath, nextToken, nextTokenAlias, nextTokenBy, nextTokenComma, nextTokenCommaValue, nextTokenEq, nextTokenForSet, nextTokenIdent, nextTokenLParen, nextTokenNotOrNull, nextTokenValue, nextVarIndex, numberExpr, numberExpr, numberExpr, numberString, parameterize, pos, putChar, readAndResetComments, reset, reset, reset, reset, scanAlias, scanChar, scanHexaDecimal, scanHiveComment, scanLBracket, scanLineArgument, scanNumber, scanSQLType, scanSQLTypeV2, scanString2, scanString2_d, setAllowComment, setCommentHandler, setKeepComments, setTimeZone, setToken, skipToEOF, skipToNextLine, skipToNextLineOrParameter, stringVal, sub_chars, subString, subString, token, unscan

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

quoteTable

public static SymbolTable quoteTable

DEFAULT_MYSQL_KEYWORDS

public static final Keywords DEFAULT_MYSQL_KEYWORDS

Constructor Details

MySqlLexer

public MySqlLexer(char[] input,
 int inputLength,
 boolean skipComment)

MySqlLexer

public MySqlLexer(String input)

MySqlLexer

public MySqlLexer(String input,
 SQLParserFeature... features)

MySqlLexer

public MySqlLexer(String input,
 boolean skipComment,
 boolean keepComments)

Method Details

scanSharp

public void scanSharp()

Overrides:

scanSharp in class Lexer

scanVariable

public void scanVariable()

Overrides:

scanVariable in class Lexer

scanVariable_at

protected void scanVariable_at()

Overrides:

scanVariable_at in class Lexer

scanIdentifier

public void scanIdentifier()

Overrides:

scanIdentifier in class Lexer

scanString

protected final void scanString()

Overrides:

scanString in class Lexer

skipFirstHintsOrMultiCommentAndNextToken

public void skipFirstHintsOrMultiCommentAndNextToken()

scanComment

public void scanComment()

Overrides:

scanComment in class Lexer

isIdentifierChar

public static boolean isIdentifierChar(char c)

isIdentifierCharForVariable

public static boolean isIdentifierCharForVariable(char c)

employee.code=:employee.code 解析异常 修复:变量名支持含符号.

Parameters:

c - the character to check

Returns:

true if the character is a valid identifier character for variables; otherwise false