Java Doc for JFlexLexer.java in  » Wiki-Engine » JAMWiki » org » jamwiki » parser » jflex » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Wiki Engine » JAMWiki » org.jamwiki.parser.jflex 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.jamwiki.parser.jflex.JFlexLexer

JFlexLexer
abstract public class JFlexLexer (Code)
Abstract class that is extended by the JFlex lexers. This class primarily contains utility methods useful during parsing.


Field Summary
protected  intmode
     Parser mode, which provides input to the parser about what steps to take.
protected  ParserInputparserInput
     Parser configuration information.
protected  ParserOutputparserOutput
     Parser parsing results.
protected  Stackstates
     Member variable used to keep track of the state history for the lexer.
protected  StacktagStack
     Stack of currently parsed tag content.


Method Summary
protected  voidappend(String content)
     Append content to the current tag in the tag stack.
protected  voidbeginState(int state)
     Begin a new parser state and store the old state onto the stack.
protected  voidendState()
     End processing of a parser state and switch to the previous parser state.
public  ParserOutputgetParserOutput()
     This method is used to set the ParserOutput field, which is used to retrieve parsed information from the parser.
final public  voidinit(ParserInput parserInput, ParserOutput parserOutput, int mode)
     Initialize the parser settings.
protected  StringparseToken(String raw, ParserTag parserTag)
     Parse a token using the specified parser tag handler.
protected  StringpopAllTags()
     Pop all tags off of the stack and return a string representation.
protected  JFlexTagItempopTag(String tagClose, boolean trimContent)
     Pop a the most recent HTML tag from the lexer stack.
protected  voidpushTag(String tagOpen)
     Push a new HTML tag onto the lexer stack.
abstract public  voidyybegin(int newState)
     JFlex internal method used to change the lexer state values.
abstract public  Stringyylex()
     JFlex internal method used to parse the next token.
abstract public  intyystate()
     JFlex internal method used to retrieve the current lexer state value.
abstract public  Stringyytext()
     JFlex internal method used to retrieve the current text matched by the yylex() method.

Field Detail
mode
protected int mode(Code)
Parser mode, which provides input to the parser about what steps to take.



parserInput
protected ParserInput parserInput(Code)
Parser configuration information.



parserOutput
protected ParserOutput parserOutput(Code)
Parser parsing results.



states
protected Stack states(Code)
Member variable used to keep track of the state history for the lexer.



tagStack
protected Stack tagStack(Code)
Stack of currently parsed tag content.





Method Detail
append
protected void append(String content)(Code)
Append content to the current tag in the tag stack.



beginState
protected void beginState(int state)(Code)
Begin a new parser state and store the old state onto the stack.
Parameters:
  state - The new parsing state that is being entered.



endState
protected void endState()(Code)
End processing of a parser state and switch to the previous parser state.



getParserOutput
public ParserOutput getParserOutput()(Code)
This method is used to set the ParserOutput field, which is used to retrieve parsed information from the parser. Parsed information generated by the parser



init
final public void init(ParserInput parserInput, ParserOutput parserOutput, int mode)(Code)
Initialize the parser settings. This functionality should be done from the constructor, but since JFlex generates code it is not possible to modify the constructor parameters.
Parameters:
  parserInput - The ParserInput object containing parser parametersrequired for successful parsing.
Parameters:
  parserOutput - The current parsed document. When parsing is donein multiple stages that output values are also built in stages.
Parameters:
  mode - The parser mode to use when parsing. Mode affects whattype of parsing actions are taken when processing raw text.



parseToken
protected String parseToken(String raw, ParserTag parserTag)(Code)
Parse a token using the specified parser tag handler. If an error occurs during processing then this method will return the raw text that was passed to it.
Parameters:
  raw - The raw token text that is to be parsed.
Parameters:
  parserTag - The parser tag handler to use when parsing the token. Returns the parsed text, or if an error occurs returns the rawtext that was passed to this method.



popAllTags
protected String popAllTags()(Code)
Pop all tags off of the stack and return a string representation.



popTag
protected JFlexTagItem popTag(String tagClose, boolean trimContent)(Code)
Pop a the most recent HTML tag from the lexer stack.



pushTag
protected void pushTag(String tagOpen)(Code)
Push a new HTML tag onto the lexer stack.



yybegin
abstract public void yybegin(int newState)(Code)
JFlex internal method used to change the lexer state values.



yylex
abstract public String yylex() throws Exception(Code)
JFlex internal method used to parse the next token.



yystate
abstract public int yystate()(Code)
JFlex internal method used to retrieve the current lexer state value.



yytext
abstract public String yytext()(Code)
JFlex internal method used to retrieve the current text matched by the yylex() method.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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