Class JFlexLexer

java.lang.Object
com.thoughtworks.qdox.parser.impl.JFlexLexer
All Implemented Interfaces:
CommentScanner, JavaLexer, Lexer

public class JFlexLexer extends Object implements JavaLexer
  • Field Details

  • Constructor Details

    • JFlexLexer

      public JFlexLexer(Reader reader, Writer writer)
    • JFlexLexer

      public JFlexLexer(InputStream stream)
    • JFlexLexer

      public JFlexLexer(InputStream stream, Writer writer)
    • JFlexLexer

      public JFlexLexer(Reader in)
      Creates a new scanner
      Parameters:
      in - the java.io.Reader to read input from.
  • Method Details

    • text

      public String text()
      Specified by:
      text in interface Lexer
    • lex

      public int lex() throws IOException
      Specified by:
      lex in interface Lexer
      Throws:
      IOException
    • getLine

      public int getLine()
      Specified by:
      getLine in interface Lexer
    • getColumn

      public int getColumn()
      Specified by:
      getColumn in interface Lexer
    • getCodeBody

      public String getCodeBody()
      Specified by:
      getCodeBody in interface Lexer
    • 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 interface CommentScanner
      Parameters:
      handler - the commentHandler to add to the CommentScanner
    • yyclose

      public final void yyclose() throws IOException
      Closes the input reader.
      Throws:
      IOException - if the reader could not be closed.
    • yyreset

      public final void yyreset(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.
    • 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 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.
    • 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 int yylex() throws 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:
      IOException - if any I/O-Error occurs.