Package jflex

Class Emitter

java.lang.Object
jflex.Emitter
public final class Emitter extends Object
This class manages the actual code generation, putting the scanner together, filling in skeleton sections etc.

Table compression, String packing etc. is also done here.

Version:
JFlex 1.7.0

  • Field Details

    • JAVADOC_COMMENT_AND_MAYBE_ANNOTATIONS_PATTERN

      private static final Pattern JAVADOC_COMMENT_AND_MAYBE_ANNOTATIONS_PATTERN

    • FINAL

      private static final int FINAL
      See Also:

    • NOLOOK

      private static final int NOLOOK
      See Also:

    • inputFile

      private File inputFile

    • out

      private PrintWriter out

    • skel

      private Skeleton skel

    • scanner

      private LexScan scanner

    • parser

      private LexParse parser

    • dfa

      private DFA dfa

    • isTransition

      private boolean[] isTransition

    • numRows

      private int numRows

    • rowMap

      private int[] rowMap

    • rowKilled

      private boolean[] rowKilled

    • numCols

      private int numCols

    • colMap

      private int[] colMap

    • colKilled

      private boolean[] colKilled

    • actionTable

      private Map<Action,Integer> actionTable
      maps actions to their switch label

    • intervals

      private CharClassInterval[] intervals

    • visibility

      private String visibility

  • Constructor Details

  • Method Details

    • getBaseName

      public static String getBaseName(String className)
      Computes base name of the class name. Needs to take into account generics.
      Parameters:
      className - Class name for which to construct the base name
      Returns:
      the
      See Also:

    • normalize

      public static File normalize(String name, File input)
      Constructs a file in Options.getDir() or in the same directory as another file. Makes a backup if the file already exists.
      Parameters:
      name - the name (without path) of the file
      input - fall back location if path = null (expected to be a file in the directory to write to)
      Returns:
      The constructed File

    • println

      private void println()

    • println

      private void println(String line)

    • println

      private void println(int i)

    • print

      private void print(String line)

    • print

      private void print(int i)

    • print

      private void print(int i, int tab)

    • hasGenLookAhead

      private boolean hasGenLookAhead()

    • emitLookBuffer

      private void emitLookBuffer()

    • emitScanError

      private void emitScanError()

    • emitMain

      private void emitMain()

    • emitNoMatch

      private void emitNoMatch()

    • emitNextInput

      private void emitNextInput()

    • emitHeader

      private void emitHeader()

    • emitUserCode

      private void emitUserCode()

    • emitClassName

      private void emitClassName()

    • endsWithJavadoc

      public static boolean endsWithJavadoc(StringBuilder usercode)
      Try to find out if user code ends with a javadoc comment, maybe followed by one or more annotations
      Parameters:
      usercode - the user code
      Returns:
      true if it ends with a javadoc comment and zero or more annotations

    • emitLexicalStates

      private void emitLexicalStates()

    • emitDynamicInit

      private void emitDynamicInit()

    • emitCharMapInitFunction

      private void emitCharMapInitFunction(int packedCharMapPairs)

    • emitCharMapArrayUnPacked

      private void emitCharMapArrayUnPacked()

    • emitCharMapArray

      private int emitCharMapArray()
      Returns the number of elements in the packed char map array, or zero if the char map array will be not be packed.

      This will be more than intervals.length if the count for any of the values is more than 0xFFFF, since the number of char map array entries per value is ceil(count / 0xFFFF)

    • printUC

      private void printUC(int c)
      Print number as octal/unicode escaped string character.
      Parameters:
      c - the value to print

    • emitRowMapArray

      private void emitRowMapArray()

    • emitAttributes

      private void emitAttributes()

    • emitClassCode

      private void emitClassCode()

    • emitConstructorDecl

      private void emitConstructorDecl()

    • emitConstructorDecl

      private void emitConstructorDecl(boolean printCtorArgs)

    • emitCtorArgs

      private void emitCtorArgs()

    • emitDoEOF

      private void emitDoEOF()

    • emitLexFunctHeader

      private void emitLexFunctHeader()

    • emitGetRowMapNext

      private void emitGetRowMapNext()

    • escapify

      private String escapify(String s)
      Escapes all " ' \ tabs and newlines
      Parameters:
      s - The string to escape
      Returns:
      The escaped string

    • emitActionTable

      public void emitActionTable()
      emitActionTable.

    • emitActions

      private void emitActions()

    • emitEOFVal

      private void emitEOFVal()

    • findActionStates

      private void findActionStates()

    • reduceColumns

      private void reduceColumns()

    • reduceRows

      private void reduceRows()

    • setupEOFCode

      private void setupEOFCode()
      Set up EOF code section according to scanner.eofcode

    • emit

      public void emit()
      Main Emitter method.