Class JFlexLexer
java.lang.Object
com.thoughtworks.qdox.parser.impl.JFlexLexer
- All Implemented Interfaces:
CommentScanner
,JavaLexer
,Lexer
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
FieldsModifier and TypeFieldDescriptionstatic final int
static final int
private int
static final int
private int
static final int
static final int
private boolean
private boolean
static final int
static final int
private int
static final int
private int
private boolean
static final int
private int
static final int
private int
private StringBuffer
private List<CommentHandler>
static final int
private boolean
static final int
static final int
static final int
static final int
static final int
static final int
static final int
private int
private boolean
static final int
private int
private int
static final int
private int
private int[]
static final int
static final int
private Writer
private int
the number of characters up to the start of the matched textprivate int
the number of characters from the last newline up to the start of the matched textstatic final int
This character denotes the end of filestatic final int
lexical statesprivate int
number of newlines encountered up to the start of the matched textprivate static final int[]
Translates DFA states to action switch labels.private static final String
private static final int[]
ZZ_ATTRIBUTE[aState] contains the attributes of stateaState
private static final String
private static final int
initial size of the lookahead bufferprivate static final char[]
Translates characters to character classesprivate static final String
Translates characters to character classesprivate static final String[]
private static final int[]
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 final int
private static final int
private static final int[]
Translates a state to a row index in the transition tableprivate static final String
private static final int[]
The transition table of the DFAprivate static final String
private static final int
private boolean
zzAtBOL == true iff the scanner is currently at the beginning of a lineprivate boolean
zzAtEOF == true iff the scanner is at the EOFprivate char[]
this buffer contains the current text to be matched and is the source of the yytext() stringprivate int
the current text position in the bufferprivate int
endRead marks the last character in the buffer, that has been read from inputprivate boolean
denotes if the user-EOF-code has already been executedprivate boolean[]
For the backwards DFA of general lookahead statementsprivate int
The number of occupied positions in zzBuffer beyond zzEndRead.private int
the current lexical stateprivate int
the textposition at the last accepting stateprivate Reader
the input deviceprivate int
startRead marks the beginning of the yytext() string in the bufferprivate int
the current state of the DFA -
Constructor Summary
ConstructorsConstructorDescriptionJFlexLexer
(InputStream stream, Writer writer) JFlexLexer
(Reader in) Creates a new scannerJFlexLexer
(Reader reader, Writer writer) -
Method Summary
Modifier and TypeMethodDescriptionvoid
addCommentHandler
(CommentHandler handler) Register this handler as a comment-listener.int
int
getLine()
int
lex()
private void
private int
parseValue
(String value, int defaultValue) private void
popState()
private void
pushState
(int newState) private void
text()
private void
write()
private void
final void
yybegin
(int newState) Enters a new lexical statefinal char
yycharat
(int pos) Returns the character at position pos from the matched text.final void
yyclose()
Closes the input stream.final 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.final void
Resets the scanner to read from a new input stream.final int
yystate()
Returns the current lexical state.final 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[]
private static int
zzUnpackAction
(String packed, int offset, int[] result) private static int[]
private static int
zzUnpackAttribute
(String packed, int offset, int[] result) private static char[]
zzUnpackCMap
(String packed) Unpacks the compressed character translation table.private static int[]
private static int
zzUnpackRowMap
(String packed, int offset, int[] result) private static int[]
private static int
zzUnpackTrans
(String packed, int offset, int[] result)
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Field Details
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YYEOF
public static final int YYEOFThis character denotes the end of file- See Also:
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ZZ_BUFFERSIZE
private static final int ZZ_BUFFERSIZEinitial size of the lookahead buffer- See Also:
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YYINITIAL
public static final int YYINITIALlexical states- See Also:
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JAVADOC
public static final int JAVADOC- See Also:
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JAVADOCTAG
public static final int JAVADOCTAG- See Also:
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JAVADOCLINE
public static final int JAVADOCLINE- See Also:
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CODEBLOCK
public static final int CODEBLOCK- See Also:
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PARENBLOCK
public static final int PARENBLOCK- See Also:
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ASSIGNMENT
public static final int ASSIGNMENT- See Also:
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STRING
public static final int STRING- See Also:
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CHAR
public static final int CHAR- See Also:
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SINGLELINECOMMENT
public static final int SINGLELINECOMMENT- See Also:
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MULTILINECOMMENT
public static final int MULTILINECOMMENT- See Also:
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ANNOTATION
public static final int ANNOTATION- See Also:
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ANNOSTRING
public static final int ANNOSTRING- See Also:
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ANNOCHAR
public static final int ANNOCHAR- See Also:
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ARGUMENTS
public static final int ARGUMENTS- See Also:
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NAME
public static final int NAME- See Also:
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ANNOTATIONTYPE
public static final int ANNOTATIONTYPE- See Also:
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ENUM
public static final int ENUM- See Also:
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MODULE
public static final int MODULE- See Also:
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TYPE
public static final int TYPE- See Also:
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ANNOTATIONNOARG
public static final int ANNOTATIONNOARG- See Also:
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ATANNOTATION
public static final int ATANNOTATION- See Also:
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NAME_OR_MODIFIER
public static final int NAME_OR_MODIFIER- See Also:
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ZZ_LEXSTATE
private static final int[] ZZ_LEXSTATEZZ_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_PACKED
Translates characters to character classes- See Also:
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ZZ_CMAP
private static final char[] ZZ_CMAPTranslates characters to character classes -
ZZ_ACTION
private static final int[] ZZ_ACTIONTranslates DFA states to action switch labels. -
ZZ_ACTION_PACKED_0
- See Also:
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ZZ_ROWMAP
private static final int[] ZZ_ROWMAPTranslates a state to a row index in the transition table -
ZZ_ROWMAP_PACKED_0
- See Also:
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ZZ_TRANS
private static final int[] ZZ_TRANSThe transition table of the DFA -
ZZ_TRANS_PACKED_0
- See Also:
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ZZ_UNKNOWN_ERROR
private static final int ZZ_UNKNOWN_ERROR- See Also:
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ZZ_NO_MATCH
private static final int ZZ_NO_MATCH- See Also:
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ZZ_PUSHBACK_2BIG
private static final int ZZ_PUSHBACK_2BIG- See Also:
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ZZ_ERROR_MSG
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ZZ_ATTRIBUTE
private static final int[] ZZ_ATTRIBUTEZZ_ATTRIBUTE[aState] contains the attributes of stateaState
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ZZ_ATTRIBUTE_PACKED_0
- See Also:
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zzReader
the input device -
zzState
private int zzStatethe current state of the DFA -
zzLexicalState
private int zzLexicalStatethe current lexical state -
zzBuffer
private char[] zzBufferthis buffer contains the current text to be matched and is the source of the yytext() string -
zzMarkedPos
private int zzMarkedPosthe textposition at the last accepting state -
zzCurrentPos
private int zzCurrentPosthe current text position in the buffer -
zzStartRead
private int zzStartReadstartRead marks the beginning of the yytext() string in the buffer -
zzEndRead
private int zzEndReadendRead marks the last character in the buffer, that has been read from input -
yyline
private int yylinenumber of newlines encountered up to the start of the matched text -
yychar
private int yycharthe number of characters up to the start of the matched text -
yycolumn
private int yycolumnthe number of characters from the last newline up to the start of the matched text -
zzAtBOL
private boolean zzAtBOLzzAtBOL == true iff the scanner is currently at the beginning of a line -
zzAtEOF
private boolean zzAtEOFzzAtEOF == true iff the scanner is at the EOF -
zzEOFDone
private boolean zzEOFDonedenotes if the user-EOF-code has already been executed -
zzFinalHighSurrogate
private int zzFinalHighSurrogateThe 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. -
zzFin
private boolean[] zzFinFor the backwards DFA of general lookahead statements -
writer
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commentHandlers
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classDepth
private int classDepth -
parenDepth
private int parenDepth -
nestingDepth
private int nestingDepth -
annotationDepth
private int annotationDepth -
assignmentDepth
private int assignmentDepth -
stateDepth
private int stateDepth -
codeblockDepth
private int codeblockDepth -
stateStack
private int[] stateStack -
braceMode
private int braceMode -
parenMode
private int parenMode -
annotatedElementLine
private int annotatedElementLine -
codeBody
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newMode
private boolean newMode -
bracketMode
private boolean bracketMode -
anonymousMode
private boolean anonymousMode -
enumConstantMode
private boolean enumConstantMode -
appendingToCodeBody
private boolean appendingToCodeBody
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Constructor Details
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JFlexLexer
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JFlexLexer
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JFlexLexer
Creates a new scanner- Parameters:
in
- the java.io.Reader to read input from.
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Method Details
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zzUnpackAction
private static int[] zzUnpackAction() -
zzUnpackAction
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zzUnpackRowMap
private static int[] zzUnpackRowMap() -
zzUnpackRowMap
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zzUnpackTrans
private static int[] zzUnpackTrans() -
zzUnpackTrans
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zzUnpackAttribute
private static int[] zzUnpackAttribute() -
zzUnpackAttribute
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write
private void write() -
write
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text
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lex
- Specified by:
lex
in interfaceLexer
- Throws:
IOException
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getLine
public int getLine() -
getColumn
public int getColumn() -
pushState
private void pushState(int newState) -
popState
private void popState() -
getCodeBody
- Specified by:
getCodeBody
in interfaceLexer
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addCommentHandler
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
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markAnnotatedElementLine
private void markAnnotatedElementLine() -
resetAnnotatedElementLine
private void resetAnnotatedElementLine() -
zzUnpackCMap
Unpacks the compressed character translation table.- Parameters:
packed
- the packed character translation table- Returns:
- the unpacked character translation table
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zzRefill
Refills the input buffer.- Returns:
false
, iff there was new input.- Throws:
IOException
- if any I/O-Error occurs
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yyclose
Closes the input stream.- Throws:
IOException
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yyreset
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. -
yybegin
public final void yybegin(int newState) Enters a new lexical state- Parameters:
newState
- the new lexical state
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yytext
Returns the text matched by the current regular expression. -
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. -
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
Contains user EOF-code, which will be executed exactly once, when the end of file is reached- Throws:
IOException
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yylex
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:
IOException
- if any I/O-Error occurs
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