Class JFlexLexer
- java.lang.Object
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- com.thoughtworks.qdox.parser.impl.JFlexLexer
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- All Implemented Interfaces:
CommentScanner
,JavaLexer
,Lexer
public class JFlexLexer extends java.lang.Object implements JavaLexer
This class is a scanner generated by JFlex 1.7.0 from the specification file src/grammar/lexer.flex
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Field Summary
Fields Modifier and Type Field Description static int
ANNOCHAR
static int
ANNOSTRING
private int
annotatedElementLine
static int
ANNOTATION
private int
annotationDepth
static int
ANNOTATIONNOARG
static int
ANNOTATIONTYPE
private boolean
anonymousMode
private boolean
appendingToCodeBody
static int
ARGUMENTS
static int
ASSIGNMENT
private int
assignmentDepth
static int
ATANNOTATION
private int
braceMode
private boolean
bracketMode
static int
CHAR
private int
classDepth
static int
CODEBLOCK
private int
codeblockDepth
private java.lang.StringBuffer
codeBody
private java.util.List<CommentHandler>
commentHandlers
static int
ENUM
private boolean
enumConstantMode
static int
JAVADOC
static int
JAVADOCLINE
static int
JAVADOCTAG
static int
MODULE
static int
MULTILINECOMMENT
static int
NAME
static int
NAME_OR_MODIFIER
private int
nestingDepth
private boolean
newMode
static int
PARENBLOCK
private int
parenDepth
private int
parenMode
static int
SINGLELINECOMMENT
private int
stateDepth
private int[]
stateStack
static int
STRING
static int
TYPE
private java.io.Writer
writer
private int
yychar
the number of characters up to the start of the matched textprivate int
yycolumn
the number of characters from the last newline up to the start of the matched textstatic int
YYEOF
This character denotes the end of filestatic int
YYINITIAL
lexical statesprivate int
yyline
number of newlines encountered up to the start of the matched textprivate 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 stateaState
private static java.lang.String
ZZ_ATTRIBUTE_PACKED_0
private static int
ZZ_BUFFERSIZE
initial size of the lookahead bufferprivate static char[]
ZZ_CMAP
Translates characters to character classesprivate static java.lang.String
ZZ_CMAP_PACKED
Translates characters to character classesprivate static java.lang.String[]
ZZ_ERROR_MSG
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 integerprivate static int
ZZ_NO_MATCH
private static int
ZZ_PUSHBACK_2BIG
private static int[]
ZZ_ROWMAP
Translates a state to a row index in the transition tableprivate static java.lang.String
ZZ_ROWMAP_PACKED_0
private static int[]
ZZ_TRANS
The transition table of the DFAprivate static java.lang.String
ZZ_TRANS_PACKED_0
private static int
ZZ_UNKNOWN_ERROR
private boolean
zzAtBOL
zzAtBOL == true iff the scanner is currently at the beginning of a lineprivate boolean
zzAtEOF
zzAtEOF == true iff the scanner is at the EOFprivate char[]
zzBuffer
this buffer contains the current text to be matched and is the source of the yytext() stringprivate int
zzCurrentPos
the current text position in the bufferprivate int
zzEndRead
endRead marks the last character in the buffer, that has been read from inputprivate boolean
zzEOFDone
denotes if the user-EOF-code has already been executedprivate boolean[]
zzFin
For the backwards DFA of general lookahead statementsprivate int
zzFinalHighSurrogate
The number of occupied positions in zzBuffer beyond zzEndRead.private int
zzLexicalState
the current lexical stateprivate int
zzMarkedPos
the textposition at the last accepting stateprivate java.io.Reader
zzReader
the input deviceprivate int
zzStartRead
startRead marks the beginning of the yytext() string in the bufferprivate int
zzState
the current state of the DFA
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Constructor Summary
Constructors Constructor Description JFlexLexer(java.io.InputStream stream, java.io.Writer writer)
JFlexLexer(java.io.Reader in)
Creates a new scannerJFlexLexer(java.io.Reader reader, java.io.Writer writer)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addCommentHandler(CommentHandler handler)
Register this handler as a comment-listener.java.lang.String
getCodeBody()
int
getColumn()
int
getLine()
int
lex()
private void
markAnnotatedElementLine()
private int
parseValue(java.lang.String value, int defaultValue)
private void
popState()
private void
pushState(int newState)
private void
resetAnnotatedElementLine()
java.lang.String
text()
private void
write()
private void
write(java.lang.String text)
void
yybegin(int newState)
Enters a new lexical statechar
yycharat(int pos)
Returns the character at position pos from the matched text.void
yyclose()
Closes the input stream.int
yylength()
Returns the length of the matched text region.int
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.void
yyreset(java.io.Reader reader)
Resets the scanner to read from a new input stream.int
yystate()
Returns the current lexical state.java.lang.String
yytext()
Returns the text matched by the current regular expression.private void
zzDoEOF()
Contains user EOF-code, which will be executed exactly once, when the end of file is reachedprivate boolean
zzRefill()
Refills the input buffer.private void
zzScanError(int errorCode)
Reports an error that occured 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 char[]
zzUnpackCMap(java.lang.String packed)
Unpacks the compressed character translation table.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)
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Field Detail
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YYEOF
public static final int YYEOF
This character denotes the end of file- See Also:
- Constant Field Values
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ZZ_BUFFERSIZE
private static final int ZZ_BUFFERSIZE
initial size of the lookahead buffer- See Also:
- Constant Field Values
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YYINITIAL
public static final int YYINITIAL
lexical states- See Also:
- Constant Field Values
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JAVADOC
public static final int JAVADOC
- See Also:
- Constant Field Values
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JAVADOCTAG
public static final int JAVADOCTAG
- See Also:
- Constant Field Values
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JAVADOCLINE
public static final int JAVADOCLINE
- See Also:
- Constant Field Values
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CODEBLOCK
public static final int CODEBLOCK
- See Also:
- Constant Field Values
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PARENBLOCK
public static final int PARENBLOCK
- See Also:
- Constant Field Values
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ASSIGNMENT
public static final int ASSIGNMENT
- See Also:
- Constant Field Values
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STRING
public static final int STRING
- See Also:
- Constant Field Values
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CHAR
public static final int CHAR
- See Also:
- Constant Field Values
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SINGLELINECOMMENT
public static final int SINGLELINECOMMENT
- See Also:
- Constant Field Values
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MULTILINECOMMENT
public static final int MULTILINECOMMENT
- See Also:
- Constant Field Values
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ANNOTATION
public static final int ANNOTATION
- See Also:
- Constant Field Values
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ANNOSTRING
public static final int ANNOSTRING
- See Also:
- Constant Field Values
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ANNOCHAR
public static final int ANNOCHAR
- See Also:
- Constant Field Values
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ARGUMENTS
public static final int ARGUMENTS
- See Also:
- Constant Field Values
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NAME
public static final int NAME
- See Also:
- Constant Field Values
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ANNOTATIONTYPE
public static final int ANNOTATIONTYPE
- See Also:
- Constant Field Values
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ENUM
public static final int ENUM
- See Also:
- Constant Field Values
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MODULE
public static final int MODULE
- See Also:
- Constant Field Values
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TYPE
public static final int TYPE
- See Also:
- Constant Field Values
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ANNOTATIONNOARG
public static final int ANNOTATIONNOARG
- See Also:
- Constant Field Values
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ATANNOTATION
public static final int ATANNOTATION
- See Also:
- Constant Field Values
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NAME_OR_MODIFIER
public static final int NAME_OR_MODIFIER
- See Also:
- Constant Field Values
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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
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ZZ_CMAP_PACKED
private static final java.lang.String ZZ_CMAP_PACKED
Translates characters to character classes- See Also:
- Constant Field Values
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ZZ_CMAP
private static final char[] ZZ_CMAP
Translates characters to character classes
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ZZ_ACTION
private static final int[] ZZ_ACTION
Translates DFA states to action switch labels.
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ZZ_ACTION_PACKED_0
private static final java.lang.String ZZ_ACTION_PACKED_0
- See Also:
- Constant Field Values
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ZZ_ROWMAP
private static final int[] ZZ_ROWMAP
Translates a state to a row index in the transition table
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ZZ_ROWMAP_PACKED_0
private static final java.lang.String ZZ_ROWMAP_PACKED_0
- See Also:
- Constant Field Values
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ZZ_TRANS
private static final int[] ZZ_TRANS
The transition table of the DFA
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ZZ_TRANS_PACKED_0
private static final java.lang.String ZZ_TRANS_PACKED_0
- See Also:
- Constant Field Values
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ZZ_UNKNOWN_ERROR
private static final int ZZ_UNKNOWN_ERROR
- See Also:
- Constant Field Values
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ZZ_NO_MATCH
private static final int ZZ_NO_MATCH
- See Also:
- Constant Field Values
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ZZ_PUSHBACK_2BIG
private static final int ZZ_PUSHBACK_2BIG
- See Also:
- Constant Field Values
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ZZ_ERROR_MSG
private static final java.lang.String[] ZZ_ERROR_MSG
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ZZ_ATTRIBUTE
private static final int[] ZZ_ATTRIBUTE
ZZ_ATTRIBUTE[aState] contains the attributes of stateaState
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ZZ_ATTRIBUTE_PACKED_0
private static final java.lang.String ZZ_ATTRIBUTE_PACKED_0
- See Also:
- Constant Field Values
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zzReader
private java.io.Reader zzReader
the input device
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zzState
private int zzState
the current state of the DFA
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zzLexicalState
private int zzLexicalState
the current lexical state
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zzBuffer
private char[] zzBuffer
this buffer contains the current text to be matched and is the source of the yytext() string
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zzMarkedPos
private int zzMarkedPos
the textposition at the last accepting state
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zzCurrentPos
private int zzCurrentPos
the current text position in the buffer
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zzStartRead
private int zzStartRead
startRead marks the beginning of the yytext() string in the buffer
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zzEndRead
private int zzEndRead
endRead marks the last character in the buffer, that has been read from input
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yyline
private int yyline
number of newlines encountered up to the start of the matched text
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yychar
private int yychar
the number of characters up to the start of the matched text
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yycolumn
private int yycolumn
the number of characters from the last newline up to the start of the matched text
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zzAtBOL
private boolean zzAtBOL
zzAtBOL == true iff the scanner is currently at the beginning of a line
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zzAtEOF
private boolean zzAtEOF
zzAtEOF == true iff the scanner is at the EOF
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zzEOFDone
private boolean zzEOFDone
denotes if the user-EOF-code has already been executed
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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.
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zzFin
private boolean[] zzFin
For the backwards DFA of general lookahead statements
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writer
private java.io.Writer writer
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commentHandlers
private java.util.List<CommentHandler> commentHandlers
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classDepth
private int classDepth
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parenDepth
private int parenDepth
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nestingDepth
private int nestingDepth
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annotationDepth
private int annotationDepth
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assignmentDepth
private int assignmentDepth
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stateDepth
private int stateDepth
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codeblockDepth
private int codeblockDepth
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stateStack
private int[] stateStack
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braceMode
private int braceMode
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parenMode
private int parenMode
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annotatedElementLine
private int annotatedElementLine
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codeBody
private java.lang.StringBuffer codeBody
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newMode
private boolean newMode
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bracketMode
private boolean bracketMode
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anonymousMode
private boolean anonymousMode
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enumConstantMode
private boolean enumConstantMode
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appendingToCodeBody
private boolean appendingToCodeBody
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Constructor Detail
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JFlexLexer
public JFlexLexer(java.io.Reader reader, java.io.Writer writer)
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JFlexLexer
public JFlexLexer(java.io.InputStream stream, java.io.Writer writer)
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JFlexLexer
public JFlexLexer(java.io.Reader in)
Creates a new scanner- Parameters:
in
- the java.io.Reader to read input from.
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Method Detail
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zzUnpackAction
private static int[] zzUnpackAction()
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zzUnpackAction
private static int zzUnpackAction(java.lang.String packed, int offset, int[] result)
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zzUnpackRowMap
private static int[] zzUnpackRowMap()
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zzUnpackRowMap
private static int zzUnpackRowMap(java.lang.String packed, int offset, int[] result)
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zzUnpackTrans
private static int[] zzUnpackTrans()
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zzUnpackTrans
private static int zzUnpackTrans(java.lang.String packed, int offset, int[] result)
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zzUnpackAttribute
private static int[] zzUnpackAttribute()
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zzUnpackAttribute
private static int zzUnpackAttribute(java.lang.String packed, int offset, int[] result)
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write
private void write()
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write
private void write(java.lang.String text)
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lex
public int lex() throws java.io.IOException
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pushState
private void pushState(int newState)
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popState
private void popState()
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getCodeBody
public java.lang.String getCodeBody()
- Specified by:
getCodeBody
in interfaceLexer
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addCommentHandler
public void addCommentHandler(CommentHandler handler)
Description copied from interface:CommentScanner
Register this handler as a comment-listener. If scanner hits a comment, all handlers will be triggered.- Specified by:
addCommentHandler
in interfaceCommentScanner
- Parameters:
handler
- the commentHandler to add to the CommentScanner
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parseValue
private int parseValue(java.lang.String value, int defaultValue)
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markAnnotatedElementLine
private void markAnnotatedElementLine()
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resetAnnotatedElementLine
private void resetAnnotatedElementLine()
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zzUnpackCMap
private static char[] zzUnpackCMap(java.lang.String packed)
Unpacks the compressed character translation table.- Parameters:
packed
- the packed character translation table- Returns:
- the unpacked character translation table
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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
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yyclose
public final void yyclose() throws java.io.IOException
Closes the input stream.- Throws:
java.io.IOException
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yyreset
public final void yyreset(java.io.Reader reader)
Resets the scanner to read from a new input stream. Does not close the old reader. All internal variables are reset, the old input stream cannot be reused (internal buffer is discarded and lost). Lexical state is set to ZZ_INITIAL. Internal scan buffer is resized down to its initial length, if it has grown.- Parameters:
reader
- the new input stream
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yystate
public final int yystate()
Returns the current lexical state.
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yybegin
public final void yybegin(int newState)
Enters a new lexical state- Parameters:
newState
- the new lexical state
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yytext
public final java.lang.String yytext()
Returns the text matched by the current regular expression.
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yycharat
public final char yycharat(int pos)
Returns the character at position pos from the matched text. It is equivalent to yytext().charAt(pos), but faster- Parameters:
pos
- the position of the character to fetch. A value from 0 to yylength()-1.- Returns:
- the character at position pos
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yylength
public final int yylength()
Returns the length of the matched text region.
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zzScanError
private void zzScanError(int errorCode)
Reports an error that occured while scanning. In a wellformed 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 errormessage to display
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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()!
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zzDoEOF
private void zzDoEOF() throws java.io.IOException
Contains user EOF-code, which will be executed exactly once, when the end of file is reached- Throws:
java.io.IOException
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yylex
public int 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
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