Delete unused filter parser.

jplag/src/main/javacc/filter.jj

@@ -1,182 +0,0 @@
-/* Hey Emacs, this is -*- mode: java; page-delimiter: "^%%$"; -*- */
-
-options {
-  JAVA_UNICODE_ESCAPE = true;
-  FORCE_LA_CHECK = true;
-}
-
-PARSER_BEGIN(FilterParser)
-package de.jplag.filter;
-import java.io.*;
-import java.util.*;
-
-public class FilterParser {
-  private static de.jplag.Token javatoken;
-  private static int[] table;
-  private static boolean[] abgebildet;
- 
-  public static int[] parse(String fileName, de.jplag.Token token,FilterParser parser) {
-    javatoken = token;
-    table = new int[token.numberOfTokens()];
-    abgebildet = new boolean[javatoken.numberOfTokens()];
-    for (int i=0; i<javatoken.numberOfTokens(); i++) {
-      table[i] = i;
-      abgebildet[i] = false;
-    }
-    parseFile(fileName,parser);
-    return table;
-  }
-
-  public static void add(Token pToken, Token pGoalToken) {
-    int aInt = -2;
-    int bInt = -2;
-    String a = pToken.image;
-    String b = (pGoalToken==null ? "" : pGoalToken.image);
-    // Tokennummer feststellen:
-    for (int i=0; 
-	 ((i<javatoken.numberOfTokens()) && ((aInt==-2) || (bInt==-2)));
-	 i++) {
-      String str = javatoken.type2string(i);
-      //      System.out.print("  "+str);
-      if (str.equals(a))
-	aInt = i;
-      if (str.equals(b))
-	bInt = i;
-    }
-    if (b.equals("")) bInt = -1;   // == auf "nichts" abbilden
-    // Nummer ueberpruefen:
-    if (aInt==-2) {
-      System.out.println("Fehler: '"+a+"' ist kein erlaubtes Symbol! (Zeile: "+
-			 pToken.beginLine+")");
-      return;
-    }
-    if (bInt==-2) {
-      System.out.println("Fehler: '"+b+"' ist kein erlaubtes Symbol! (Zeile: "+
-			 pGoalToken.beginLine+")");
-      return;
-    }
-    if (abgebildet[aInt]) {
-      System.out.println("Warnung: '"+a+
-			 "' wird ein zweites Mal abgebildet in Zeile: "+
-			 pToken.beginLine);
-    }
-    table[aInt] = bInt;
-    abgebildet[aInt] = true;
-    //System.out.println("Abbildung: "+a+" -> "+b+";\t\t("+aInt+"->"+bInt+")");
-  }
-
-  /* // nur zum test
-  public static void main(String[] args) {
-  
-    parse(args[0], new de.jplag.javax.JavaToken(0,null,0),new FilterParser());
-  }
-  
-  */
-
-  // PARSER:
-
- // private static FilterParser parser = null;
-  private static boolean parseFile(String fileName,FilterParser parser) {
-    File file=null;
-    try {
-      FileInputStream in = new FileInputStream(file=new File(fileName));
-      if (parser==null) {
-	parser = new FilterParser(in);
-      } else {
-	parser.ReInit(in);
-      }
-    } catch (FileNotFoundException e) {
-      System.out.println("FilterParser: File " + fileName +
-			 " not found.");
-      return false;
-    }
-    try {
-      parser.File();
-    } catch (ParseException e) {
-      System.out.println("Parsing Error in '"+
-			 (file==null ? fileName : file.toString())+
-			 "':\n"+e.getMessage());
-      return false;
-    } catch (TokenMgrError e) {
-      System.out.println("Scanning Error in '"+
-			 (file==null ? fileName : file.toString())+
-			 "':\n"+e.getMessage());
-      return true; //false;
-    }
-    return true;
-  }
-}
-
-PARSER_END(FilterParser)
-
-
-/* WHITE SPACE */
-
-SKIP :
-{
-  " "
-| "\t"
-| "\n"
-| "\r"
-| "\f"
-| "\u001a"
-
-}
-
-/* COMMENTS */
-
-MORE :
-{
-  "#" : IN_SINGLE_LINE_COMMENT
-}
-
-<IN_SINGLE_LINE_COMMENT>
-SPECIAL_TOKEN :
-{
-  <SINGLE_LINE_COMMENT: "\n" | "\r" | "\r\n"> : DEFAULT
-}
-
-<IN_SINGLE_LINE_COMMENT>
-MORE :
-{
-  < ~[] >
-}
-
-/* IDENTIFIERS */
-
-TOKEN :
-{
-  < ID: (["A"-"Z","_"])+ >
-}
-
-TOKEN :
-{
-  < COMMA: "," >
-| < PROD: "->" >
-| < SEMICOLON: ";" >
-}
-
-void File() :
-{}
-{
-  ( Line() )*
-  <EOF>
-}
-
-void Line() :
-{
-  Vector tokens = new Vector();
-  Token goal = null; }
-{  
-  <ID>         { tokens.addElement(token); }
-  ("," <ID>    { tokens.addElement(token); } )*
-  "->"
-    [<ID>      { goal = token; } ] ";"
-    { 
-      Enumeration enum1 = tokens.elements();
-      while (enum1.hasMoreElements()) {
-	Token t = (Token)enum1.nextElement();
-	add(t,goal);
-      }
-    }
-}