Package org.opengrok.indexer.analysis.powershell

Class PoshXref

java.lang.Object
org.opengrok.indexer.analysis.JFlexStateStacker
org.opengrok.indexer.analysis.JFlexSymbolMatcher
org.opengrok.indexer.analysis.powershell.PoshXref
All Implemented Interfaces:
JFlexLexer, JFlexStackingLexer, Resettable, ScanningSymbolMatcher, SymbolMatchedPublisher
public class PoshXref extends JFlexSymbolMatcher

  • Field Details

  • Constructor Details

    • PoshXref

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

  • Method Details

    • getYYCHAR

      public long getYYCHAR()
      Gets the yychar value.
      Returns:
      yychar

    • getYYEOF

      public int getYYEOF()
      Gets the YYEOF value.
      Specified by:
      getYYEOF in interface JFlexStackingLexer
      Specified by:
      getYYEOF in class JFlexStateStacker
      Returns:
      YYEOF

    • phLOC

      public void phLOC()
      Calls JFlexSymbolMatcher.onSourceCodeSeen(long) with yychar.

    • clearStack

      protected void clearStack()
      Description copied from class: JFlexStateStacker
      Clears the instance stack.
      Overrides:
      clearStack in class JFlexStateStacker

    • pushSpan

      public void pushSpan(int newState, String className) throws IOException
      Throws:
      IOException

    • yypop

      public void yypop() throws IOException
      Description copied from class: JFlexStateStacker
      Pops the last state from the stack, and enters the state with JFlexLexer.yybegin(int).
      Specified by:
      yypop in interface JFlexStackingLexer
      Overrides:
      yypop in class JFlexStateStacker
      Throws:
      IOException - if any error occurs while effecting the pop

    • chkLOC

      protected void chkLOC()

    • 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.