java.lang.Object
- com.fasterxml.jackson.dataformat.toml.Lexer

```
class Lexer
extends java.lang.Object
```

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`BASIC_STRING`
`private TomlStreamReadException.ErrorContext`	`errorContext`
`static int`	`EXPECT_ARRAY_SEP`
`static int`	`EXPECT_EOL`
`static int`	`EXPECT_EXPRESSION`
`static int`	`EXPECT_INLINE_KEY`
`static int`	`EXPECT_TABLE_SEP`
`static int`	`EXPECT_VALUE`
`private com.fasterxml.jackson.core.io.IOContext`	`ioContext`
`static int`	`LITERAL_STRING`
`static int`	`ML_BASIC_STRING`
`static int`	`ML_LITERAL_STRING`
`private int`	`nestingDepth`
`(package private) boolean`	`prohibitInternalBufferAllocate`
`private boolean`	`releaseTokenBuffer`
`private com.fasterxml.jackson.core.StreamReadConstraints`	`streamReadConstraints`
`(package private) com.fasterxml.jackson.core.util.TextBuffer`	`textBuffer`
`private boolean`	`trimmedNewline`
`private long`	`yychar`	Number of characters up to the start of the matched text.
`private int`	`yycolumn`	Number of characters from the last newline up to the start of the matched text.
`static int`	`YYEOF`	This character denotes the end of file.
`static int`	`YYINITIAL`
`private int`	`yyline`	Number of newlines encountered up to the start of the matched text.
`private static int[]`	`ZZ_ACTION`	Translates DFA states to action switch labels.
`private static java.lang.String`	`ZZ_ACTION_PACKED_0`
`private static int[]`	`ZZ_ATTRIBUTE`	ZZ_ATTRIBUTE[aState] contains the attributes of state `aState`
`private static java.lang.String`	`ZZ_ATTRIBUTE_PACKED_0`
`private static int`	`ZZ_BUFFERSIZE`	Initial size of the lookahead buffer.
`private static int[]`	`ZZ_CMAP_BLOCKS`	Second-level tables for translating characters to character classes
`private static java.lang.String`	`ZZ_CMAP_BLOCKS_PACKED_0`
`private static int[]`	`ZZ_CMAP_TOP`	Top-level table for translating characters to character classes
`private static java.lang.String`	`ZZ_CMAP_TOP_PACKED_0`
`private static java.lang.String[]`	`ZZ_ERROR_MSG`	Error messages for `ZZ_UNKNOWN_ERROR`, `ZZ_NO_MATCH`, and `ZZ_PUSHBACK_2BIG` respectively.
`private static int[]`	`ZZ_LEXSTATE`	ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l at the beginning of a line l is of the form l = 2*k, k a non negative integer
`private static int`	`ZZ_NO_MATCH`	Error code for "could not match input".
`private static int`	`ZZ_PUSHBACK_2BIG`	Error code for "pushback value was too large".
`private static int[]`	`ZZ_ROWMAP`	Translates a state to a row index in the transition table
`private static java.lang.String`	`ZZ_ROWMAP_PACKED_0`
`private static int[]`	`ZZ_TRANS`	The transition table of the DFA
`private static java.lang.String`	`ZZ_TRANS_PACKED_0`
`private static int`	`ZZ_UNKNOWN_ERROR`	Error code for "Unknown internal scanner error".
`private boolean`	`zzAtBOL`	Whether the scanner is currently at the beginning of a line.
`private boolean`	`zzAtEOF`	Whether the scanner is at the end of file.
`private char[]`	`zzBuffer`	This buffer contains the current text to be matched and is the source of the `yytext()` string.
`private int`	`zzCurrentPos`	Current text position in the buffer.
`private int`	`zzEndRead`	Marks the last character in the buffer, that has been read from input.
`private boolean`	`zzEOFDone`	Whether the user-EOF-code has already been executed.
`private int`	`zzFinalHighSurrogate`	The number of occupied positions in `zzBuffer` beyond `zzEndRead`.
`private int`	`zzLexicalState`	Current lexical state.
`private int`	`zzMarkedPos`	Text position at the last accepting state.
`private java.io.Reader`	`zzReader`	Input device.
`private int`	`zzStartRead`	Marks the beginning of the `yytext()` string in the buffer.
`private int`	`zzState`	Current state of the DFA.

Constructor Summary

Constructors
Constructor	Description
`Lexer(java.io.Reader in, com.fasterxml.jackson.core.io.IOContext ioContext, TomlStreamReadException.ErrorContext errorContext)`	Creates a new scanner

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private void`	`appendNewlineWithPossibleTrim()`
`private void`	`appendNormalTextToken()`
`private void`	`appendUnicodeEscapeLong()`
`private void`	`appendUnicodeEscapeShort()`
`(package private) long`	`getCharPos()`
`(package private) int`	`getColumn()`
`(package private) int`	`getLine()`
`int`	`getNestingDepth()`
`(package private) char[]`	`getTextBuffer()`
`(package private) int`	`getTextBufferEnd()`
`(package private) int`	`getTextBufferStart()`
`void`	`releaseBuffers()`
`private void`	`requestLargerBuffer()`
`private void`	`startString()`
`boolean`	`yyatEOF()`	Returns whether the scanner has reached the end of the reader it reads from.
`void`	`yybegin(int newState)`	Enters a new lexical state.
`char`	`yycharat(int position)`	Returns the character at the given position from the matched text.
`void`	`yyclose()`	Closes the input reader.
`int`	`yylength()`	How many characters were matched.
`TomlToken`	`yylex()`	Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
`void`	`yypushback(int number)`	Pushes the specified amount of characters back into the input stream.
`private void`	`yyResetPosition()`	Resets the input position.
`int`	`yystate()`	Returns the current lexical state.
`java.lang.String`	`yytext()`	Returns the text matched by the current regular expression.
`private boolean`	`zzCanGrow()`	Whether the scanner buffer can grow to accommodate a larger token.
`private static int`	`zzCMap(int input)`	Translates raw input code points to DFA table row
`private int`	`zzMaxBufferLen()`	Returns the maximum size of the scanner buffer, which limits the size of tokens.
`private boolean`	`zzRefill()`	Refills the input buffer.
`private static void`	`zzScanError(int errorCode)`	Reports an error that occurred while scanning.
`private static int[]`	`zzUnpackAction()`
`private static int`	`zzUnpackAction(java.lang.String packed, int offset, int[] result)`
`private static int[]`	`zzUnpackAttribute()`
`private static int`	`zzUnpackAttribute(java.lang.String packed, int offset, int[] result)`
`private static int[]`	`zzUnpackcmap_blocks()`
`private static int`	`zzUnpackcmap_blocks(java.lang.String packed, int offset, int[] result)`
`private static int[]`	`zzUnpackcmap_top()`
`private static int`	`zzUnpackcmap_top(java.lang.String packed, int offset, int[] result)`
`private static int[]`	`zzUnpackRowMap()`
`private static int`	`zzUnpackRowMap(java.lang.String packed, int offset, int[] result)`
`private static int[]`	`zzUnpacktrans()`
`private static int`	`zzUnpacktrans(java.lang.String packed, int offset, int[] result)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - YYEOF
```
public static final int YYEOF
```
    This character denotes the end of file.
    
    See Also:
    
    Constant Field Values
  - ZZ_BUFFERSIZE
```
private static final int ZZ_BUFFERSIZE
```
    Initial size of the lookahead buffer.
    
    See Also:
    
    Constant Field Values
  - YYINITIAL
```
public static final int YYINITIAL
```
    See Also:
    
    Constant Field Values
  - EXPECT_EXPRESSION
```
public static final int EXPECT_EXPRESSION
```
    See Also:
    
    Constant Field Values
  - EXPECT_INLINE_KEY
```
public static final int EXPECT_INLINE_KEY
```
    See Also:
    
    Constant Field Values
  - EXPECT_VALUE
```
public static final int EXPECT_VALUE
```
    See Also:
    
    Constant Field Values
  - EXPECT_EOL
```
public static final int EXPECT_EOL
```
    See Also:
    
    Constant Field Values
  - EXPECT_ARRAY_SEP
```
public static final int EXPECT_ARRAY_SEP
```
    See Also:
    
    Constant Field Values
  - EXPECT_TABLE_SEP
```
public static final int EXPECT_TABLE_SEP
```
    See Also:
    
    Constant Field Values
  - ML_BASIC_STRING
```
public static final int ML_BASIC_STRING
```
    See Also:
    
    Constant Field Values
  - BASIC_STRING
```
public static final int BASIC_STRING
```
    See Also:
    
    Constant Field Values
  - ML_LITERAL_STRING
```
public static final int ML_LITERAL_STRING
```
    See Also:
    
    Constant Field Values
  - LITERAL_STRING
```
public static final int LITERAL_STRING
```
    See Also:
    
    Constant Field Values
  - ZZ_LEXSTATE
```
private static final int[] ZZ_LEXSTATE
```
    ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l at the beginning of a line l is of the form l = 2*k, k a non negative integer
  - ZZ_CMAP_TOP
```
private static final int[] ZZ_CMAP_TOP
```
    Top-level table for translating characters to character classes
  - ZZ_CMAP_TOP_PACKED_0
```
private static final java.lang.String ZZ_CMAP_TOP_PACKED_0
```
    See Also:
    
    Constant Field Values
  - ZZ_CMAP_BLOCKS
```
private static final int[] ZZ_CMAP_BLOCKS
```
    Second-level tables for translating characters to character classes
  - ZZ_CMAP_BLOCKS_PACKED_0
```
private static final java.lang.String ZZ_CMAP_BLOCKS_PACKED_0
```
    See Also:
    
    Constant Field Values
  - ZZ_ACTION
```
private static final int[] ZZ_ACTION
```
    Translates DFA states to action switch labels.
  - ZZ_ACTION_PACKED_0
```
private static final java.lang.String ZZ_ACTION_PACKED_0
```
    See Also:
    
    Constant Field Values
  - ZZ_ROWMAP
```
private static final int[] ZZ_ROWMAP
```
    Translates a state to a row index in the transition table
  - ZZ_ROWMAP_PACKED_0
```
private static final java.lang.String ZZ_ROWMAP_PACKED_0
```
    See Also:
    
    Constant Field Values
  - ZZ_TRANS
```
private static final int[] ZZ_TRANS
```
    The transition table of the DFA
  - ZZ_TRANS_PACKED_0
```
private static final java.lang.String ZZ_TRANS_PACKED_0
```
    See Also:
    
    Constant Field Values
  - ZZ_UNKNOWN_ERROR
```
private static final int ZZ_UNKNOWN_ERROR
```
    Error code for "Unknown internal scanner error".
    
    See Also:
    
    Constant Field Values
  - ZZ_NO_MATCH
```
private static final int ZZ_NO_MATCH
```
    Error code for "could not match input".
    
    See Also:
    
    Constant Field Values
  - ZZ_PUSHBACK_2BIG
```
private static final int ZZ_PUSHBACK_2BIG
```
    Error code for "pushback value was too large".
    
    See Also:
    
    Constant Field Values
  - ZZ_ERROR_MSG
```
private static final java.lang.String[] ZZ_ERROR_MSG
```
    Error messages for ZZ_UNKNOWN_ERROR, ZZ_NO_MATCH, and ZZ_PUSHBACK_2BIG respectively.
  - ZZ_ATTRIBUTE
```
private static final int[] ZZ_ATTRIBUTE
```
    ZZ_ATTRIBUTE[aState] contains the attributes of state aState
  - ZZ_ATTRIBUTE_PACKED_0
```
private static final java.lang.String ZZ_ATTRIBUTE_PACKED_0
```
    See Also:
    
    Constant Field Values
  - zzReader
```
private java.io.Reader zzReader
```
    Input device.
  - zzState
```
private int zzState
```
    Current state of the DFA.
  - zzLexicalState
```
private int zzLexicalState
```
    Current lexical state.
  - zzBuffer
```
private char[] zzBuffer
```
    This buffer contains the current text to be matched and is the source of the yytext() string.
  - zzMarkedPos
```
private int zzMarkedPos
```
    Text position at the last accepting state.
  - zzCurrentPos
```
private int zzCurrentPos
```
    Current text position in the buffer.
  - zzStartRead
```
private int zzStartRead
```
    Marks the beginning of the yytext() string in the buffer.
  - zzEndRead
```
private int zzEndRead
```
    Marks the last character in the buffer, that has been read from input.
  - zzAtEOF
```
private boolean zzAtEOF
```
    Whether the scanner is at the end of file.
    
    See Also:
    
    yyatEOF()
  - zzFinalHighSurrogate
```
private int zzFinalHighSurrogate
```
    The number of occupied positions in zzBuffer beyond zzEndRead.
    When a lead/high surrogate has been read from the input stream into the final zzBuffer position, this will have a value of 1; otherwise, it will have a value of 0.
  - yyline
```
private int yyline
```
    Number of newlines encountered up to the start of the matched text.
  - yycolumn
```
private int yycolumn
```
    Number of characters from the last newline up to the start of the matched text.
  - yychar
```
private long yychar
```
    Number of characters up to the start of the matched text.
  - zzAtBOL
```
private boolean zzAtBOL
```
    Whether the scanner is currently at the beginning of a line.
  - zzEOFDone
```
private boolean zzEOFDone
```
    Whether the user-EOF-code has already been executed.
  - ioContext
```
private final com.fasterxml.jackson.core.io.IOContext ioContext
```
  - errorContext
```
private final TomlStreamReadException.ErrorContext errorContext
```
  - prohibitInternalBufferAllocate
```
boolean prohibitInternalBufferAllocate
```
  - releaseTokenBuffer
```
private boolean releaseTokenBuffer
```
  - trimmedNewline
```
private boolean trimmedNewline
```
  - textBuffer
```
final com.fasterxml.jackson.core.util.TextBuffer textBuffer
```
  - streamReadConstraints
```
private final com.fasterxml.jackson.core.StreamReadConstraints streamReadConstraints
```
  - nestingDepth
```
private int nestingDepth
```
- Constructor Detail
  - Lexer
```
Lexer(java.io.Reader in,
      com.fasterxml.jackson.core.io.IOContext ioContext,
      TomlStreamReadException.ErrorContext errorContext)
```
    Creates a new scanner
    
    Parameters:
    
    in - the java.io.Reader to read input from.
- Method Detail
  - zzUnpackcmap_top
```
private static int[] zzUnpackcmap_top()
```
  - zzUnpackcmap_top
```
private static int zzUnpackcmap_top(java.lang.String packed,
                                    int offset,
                                    int[] result)
```
  - zzUnpackcmap_blocks
```
private static int[] zzUnpackcmap_blocks()
```
  - zzUnpackcmap_blocks
```
private static int zzUnpackcmap_blocks(java.lang.String packed,
                                       int offset,
                                       int[] result)
```
  - zzUnpackAction
```
private static int[] zzUnpackAction()
```
  - zzUnpackAction
```
private static int zzUnpackAction(java.lang.String packed,
                                  int offset,
                                  int[] result)
```
  - zzUnpackRowMap
```
private static int[] zzUnpackRowMap()
```
  - zzUnpackRowMap
```
private static int zzUnpackRowMap(java.lang.String packed,
                                  int offset,
                                  int[] result)
```
  - zzUnpacktrans
```
private static int[] zzUnpacktrans()
```
  - zzUnpacktrans
```
private static int zzUnpacktrans(java.lang.String packed,
                                 int offset,
                                 int[] result)
```
  - zzUnpackAttribute
```
private static int[] zzUnpackAttribute()
```
  - zzUnpackAttribute
```
private static int zzUnpackAttribute(java.lang.String packed,
                                     int offset,
                                     int[] result)
```
  - requestLargerBuffer
```
private void requestLargerBuffer()
                          throws TomlStreamReadException
```
    Throws:
    
    TomlStreamReadException
  - releaseBuffers
```
public void releaseBuffers()
```
  - getNestingDepth
```
public int getNestingDepth()
```
  - startString
```
private void startString()
```
  - appendNormalTextToken
```
private void appendNormalTextToken()
                            throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - appendNewlineWithPossibleTrim
```
private void appendNewlineWithPossibleTrim()
                                    throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - appendUnicodeEscapeShort
```
private void appendUnicodeEscapeShort()
                               throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - appendUnicodeEscapeLong
```
private void appendUnicodeEscapeLong()
                              throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - getLine
```
int getLine()
```
  - getColumn
```
int getColumn()
```
  - getCharPos
```
long getCharPos()
```
  - getTextBuffer
```
char[] getTextBuffer()
```
  - getTextBufferStart
```
int getTextBufferStart()
```
  - getTextBufferEnd
```
int getTextBufferEnd()
```
  - zzMaxBufferLen
```
private int zzMaxBufferLen()
```
    Returns the maximum size of the scanner buffer, which limits the size of tokens.
  - zzCanGrow
```
private boolean zzCanGrow()
```
    Whether the scanner buffer can grow to accommodate a larger token.
  - zzCMap
```
private static int zzCMap(int input)
```
    Translates raw input code points to DFA table row
  - zzRefill
```
private boolean zzRefill()
                  throws java.io.IOException
```
    Refills the input buffer.
    
    Returns:
    
    false iff there was new input.
    
    Throws:
    
    java.io.IOException - if any I/O-Error occurs
  - yyclose
```
public final void yyclose()
                   throws java.io.IOException
```
    Closes the input reader.
    
    Throws:
    
    java.io.IOException - if the reader could not be closed.
  - yyResetPosition
```
private final void yyResetPosition()
```
    Resets the input position.
  - yyatEOF
```
public final boolean yyatEOF()
```
    Returns whether the scanner has reached the end of the reader it reads from.
    
    Returns:
    
    whether the scanner has reached EOF.
  - yystate
```
public final int yystate()
```
    Returns the current lexical state.
    
    Returns:
    
    the current lexical state.
  - yybegin
```
public final void yybegin(int newState)
```
    Enters a new lexical state.
    
    Parameters:
    
    newState - the new lexical state
  - yytext
```
public final java.lang.String yytext()
```
    Returns the text matched by the current regular expression.
    
    Returns:
    
    the matched text.
  - yycharat
```
public final char yycharat(int position)
```
    Returns the character at the given position from the matched text.
    It is equivalent to yytext().charAt(pos), but faster.
    
    Parameters:
    
    position - the position of the character to fetch. A value from 0 to yylength()-1.
    
    Returns:
    
    the character at position.
  - yylength
```
public final int yylength()
```
    How many characters were matched.
    
    Returns:
    
    the length of the matched text region.
  - zzScanError
```
private static void zzScanError(int errorCode)
```
    Reports an error that occurred while scanning.
    In a well-formed scanner (no or only correct usage of yypushback(int) and a match-all fallback rule) this method will only be called with things that "Can't Possibly Happen".
    If this method is called, something is seriously wrong (e.g. a JFlex bug producing a faulty scanner etc.).
    Usual syntax/scanner level error handling should be done in error fallback rules.
    
    Parameters:
    
    errorCode - the code of the error message to display.
  - yypushback
```
public void yypushback(int number)
```
    Pushes the specified amount of characters back into the input stream.
    They will be read again by then next call of the scanning method.
    
    Parameters:
    
    number - the number of characters to be read again. This number must not be greater than yylength().
  - yylex
```
public TomlToken yylex()
                throws java.io.IOException
```
    Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
    
    Returns:
    
    the next token.
    
    Throws:
    
    java.io.IOException - if any I/O-Error occurs.

Class Lexer

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

YYEOF

ZZ_BUFFERSIZE

YYINITIAL

EXPECT_EXPRESSION

EXPECT_INLINE_KEY

EXPECT_VALUE

EXPECT_EOL

EXPECT_ARRAY_SEP

EXPECT_TABLE_SEP

ML_BASIC_STRING

BASIC_STRING

ML_LITERAL_STRING

LITERAL_STRING

ZZ_LEXSTATE

ZZ_CMAP_TOP

ZZ_CMAP_TOP_PACKED_0

ZZ_CMAP_BLOCKS

ZZ_CMAP_BLOCKS_PACKED_0

ZZ_ACTION

ZZ_ACTION_PACKED_0

ZZ_ROWMAP

ZZ_ROWMAP_PACKED_0

ZZ_TRANS

ZZ_TRANS_PACKED_0

ZZ_UNKNOWN_ERROR

ZZ_NO_MATCH

ZZ_PUSHBACK_2BIG

ZZ_ERROR_MSG

ZZ_ATTRIBUTE

ZZ_ATTRIBUTE_PACKED_0

zzReader

zzState

zzLexicalState

zzBuffer

zzMarkedPos

zzCurrentPos

zzStartRead

zzEndRead

zzAtEOF

zzFinalHighSurrogate

yyline

yycolumn

yychar

zzAtBOL

zzEOFDone

ioContext

errorContext

prohibitInternalBufferAllocate

releaseTokenBuffer

trimmedNewline

textBuffer

streamReadConstraints

nestingDepth

Constructor Detail

Lexer

Method Detail

zzUnpackcmap_top

zzUnpackcmap_top

zzUnpackcmap_blocks

zzUnpackcmap_blocks

zzUnpackAction

zzUnpackAction

zzUnpackRowMap

zzUnpackRowMap

zzUnpacktrans

zzUnpacktrans

zzUnpackAttribute

zzUnpackAttribute

requestLargerBuffer

releaseBuffers

getNestingDepth

startString

appendNormalTextToken

appendNewlineWithPossibleTrim