Package com.alibaba.druid.sql.parser

Class Lexer

java.lang.Object
com.alibaba.druid.sql.parser.Lexer
Direct Known Subclasses:
AdsLexer, AntsparkLexer, BlinkLexer, ClickhouseLexer, DB2Lexer, H2Lexer, HiveLexer, MySqlLexer, OdpsLexer, OracleLexer, OscarLexer, PGLexer, PhoenixLexer, PrestoLexer, SQLServerLexer
public class Lexer extends Object
Author:
wenshao [szujobs@hotmail.com]

  • Field Details

    • symbols_l2

      protected static SymbolTable symbols_l2

    • features

      protected int features

    • timeZone

      protected TimeZone timeZone

    • text

      public final String text

    • pos

      protected int pos

    • mark

      protected int mark

    • numberSale

      protected int numberSale

    • numberExp

      protected boolean numberExp

    • ch

      protected char ch

    • buf

      protected char[] buf

    • bufPos

      protected int bufPos

    • token

      protected Token token

    • keywords

      protected Keywords keywords

    • stringVal

      protected String stringVal

    • hashLCase

      protected long hashLCase

    • hash

      protected long hash

    • commentCount

      protected int commentCount

    • comments

      protected List<String> comments

    • skipComment

      protected boolean skipComment

    • commentHandler

      protected Lexer.CommentHandler commentHandler

    • endOfComment

      protected boolean endOfComment

    • keepComments

      protected boolean keepComments

    • line

      protected int line

    • lines

      protected int lines

    • dbType

      protected DbType dbType

    • optimizedForParameterized

      protected boolean optimizedForParameterized

    • keepSourceLocation

      protected boolean keepSourceLocation

    • startPos

      protected int startPos

    • posLine

      protected int posLine

    • posColumn

      protected int posColumn

  • Constructor Details

  • Method Details

    • isKeepComments

      public boolean isKeepComments()

    • setKeepComments

      public void setKeepComments(boolean keepComments)

    • getCommentHandler

      public Lexer.CommentHandler getCommentHandler()

    • setCommentHandler

      public void setCommentHandler(Lexer.CommentHandler commentHandler)

    • charAt

      public final char charAt(int index)

    • addSymbol

      public final String addSymbol()

    • subString

      public final String subString(int offset, int count)

    • subString

      public final String subString(int offset)

    • sub_chars

      public final char[] sub_chars(int offset, int count)

    • initBuff

      protected void initBuff(int size)

    • arraycopy

      public void arraycopy(int srcPos, char[] dest, int destPos, int length)

    • isAllowComment

      public boolean isAllowComment()

    • setAllowComment

      public void setAllowComment(boolean allowComment)

    • nextVarIndex

      public int nextVarIndex()

    • getKeywords

      public Keywords getKeywords()

    • mark

      @Deprecated public Lexer.SavePoint mark()
      Deprecated.

    • markOut

      public Lexer.SavePoint markOut()

    • reset

      public void reset(Lexer.SavePoint savePoint)

    • reset

      @Deprecated public void reset()
      Deprecated.

    • reset

      public void reset(int pos)

    • scanChar

      protected final void scanChar()

    • unscan

      protected void unscan()

    • isEOF

      public boolean isEOF()

    • lexError

      protected void lexError(String key, Object... args)
      Report an error at the given position using the provided arguments.

    • token

      public final Token token()
      Return the current token, set by nextToken().

    • setToken

      public void setToken(Token token)

    • getDbType

      public final DbType getDbType()

    • info

      public String info()

    • nextTokenComma

      public final void nextTokenComma()

    • nextTokenCommaValue

      public final void nextTokenCommaValue()

    • nextTokenEq

      public final void nextTokenEq()

    • nextTokenLParen

      public final void nextTokenLParen()

    • nextTokenValue

      public final void nextTokenValue()

    • nextTokenBy

      public final void nextTokenBy()

    • nextTokenNotOrNull

      public final void nextTokenNotOrNull()

    • nextTokenIdent

      public final void nextTokenIdent()

    • scanSQLType

      public final SQLType scanSQLType()

    • scanSQLTypeV2

      public final SQLType scanSQLTypeV2()

    • nextTokenAlias

      public final void nextTokenAlias()

    • nextPath

      public final void nextPath()

    • nextTokenForSet

      public final void nextTokenForSet()

    • skipToNextLine

      public final boolean skipToNextLine(int startPosition)

    • skipToNextLineOrParameter

      public final boolean skipToNextLineOrParameter(int startPosition)

    • nextToken

      public final void nextToken()

    • scanLBracket

      protected void scanLBracket()

    • scanString

      protected void scanString()

    • scanString2

      protected final void scanString2()

    • scanString2_d

      protected final void scanString2_d()

    • scanAlias

      protected final void scanAlias()

    • scanSharp

      public void scanSharp()

    • scanVariable

      public void scanVariable()

    • scanVariable_at

      protected void scanVariable_at()

    • scanComment

      public void scanComment()

    • scanHiveComment

      protected final void scanHiveComment()

    • scanLineArgument

      public List<String> scanLineArgument()

    • scanIdentifier

      public void scanIdentifier()

    • scanNumber

      public void scanNumber()

    • scanHexaDecimal

      public void scanHexaDecimal()

    • hexString

      public String hexString()

    • isDigit

      public final boolean isDigit(char ch)

    • isDigit2

      protected static final boolean isDigit2(char ch)

    • putChar

      protected final void putChar(char ch)
      Append a character to sbuf.

    • pos

      public final int pos()
      Return the current token's position: a 0-based offset from beginning of the raw input stream (before unicode translation)

    • stringVal

      public final String stringVal()
      The value of a literal token, recorded as a string. For integers, leading 0x and 'l' suffixes are suppressed.

    • identifierEquals

      public final boolean identifierEquals(String text)

    • identifierEquals

      public final boolean identifierEquals(long hash_lower)

    • hashLCase

      public final long hashLCase()

    • readAndResetComments

      public final List<String> readAndResetComments()

    • isNegativeIntegerValue

      public final boolean isNegativeIntegerValue()

    • integerValue

      public final Number integerValue()

    • bp

      public int bp()

    • current

      public char current()

    • reset

      @Deprecated public void reset(int mark, char markChar, Token token)
      Deprecated.

    • numberString

      public final String numberString()

    • decimalValue

      public BigDecimal decimalValue()

    • numberExpr

      public SQLNumberExpr numberExpr()

    • numberExpr

      public SQLNumberExpr numberExpr(SQLObject parent)

    • numberExpr

      public SQLNumberExpr numberExpr(boolean negate)

    • hasComment

      public boolean hasComment()

    • getCommentCount

      public int getCommentCount()

    • skipToEOF

      public void skipToEOF()

    • isEndOfComment

      public boolean isEndOfComment()

    • isSafeComment

      protected boolean isSafeComment(String comment)

    • addComment

      protected void addComment(String comment)

    • getComments

      public List<String> getComments()

    • getLine

      public int getLine()

    • computeRowAndColumn

      public void computeRowAndColumn()

    • getPosLine

      public int getPosLine()

    • getPosColumn

      public int getPosColumn()

    • config

      public void config(SQLParserFeature feature, boolean state)

    • getTimeZone

      public TimeZone getTimeZone()

    • setTimeZone

      public void setTimeZone(TimeZone timeZone)

    • isEnabled

      public final boolean isEnabled(SQLParserFeature feature)

    • parameterize

      public static String parameterize(String sql, DbType dbType)

    • getSource

      public String getSource()