private void emitActions()

in jflex/src/main/java/jflex/generator/Emitter.java [1085:1164]
72 lines of code
10 McCabe index (conditional complexity)

  private void emitActions() {
    println("        switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {");

    int i = actionTable.size() + 1;

    for (Map.Entry<Action, Integer> entry : actionTable.entrySet()) {
      Action action = entry.getKey();
      int label = entry.getValue();

      println("          case " + label + ":");

      if (action.lookAhead() == Action.Kind.FIXED_BASE) {
        println("            // lookahead expression with fixed base length");
        println("            zzMarkedPos = Character.offsetByCodePoints");
        println(
            "                (zzBufferL, zzStartRead, zzEndRead - zzStartRead, zzStartRead, "
                + action.getLookLength()
                + ");");
      }

      if (action.lookAhead() == Action.Kind.FIXED_LOOK
          || action.lookAhead() == Action.Kind.FINITE_CHOICE) {
        println("            // lookahead expression with fixed lookahead length");
        println("            zzMarkedPos = Character.offsetByCodePoints");
        println(
            "                (zzBufferL, zzStartRead, zzEndRead - zzStartRead, zzMarkedPos, -"
                + action.getLookLength()
                + ");");
      }

      if (action.lookAhead() == Action.Kind.GENERAL_LOOK) {
        println("            // general lookahead, find correct zzMarkedPos");
        println("            { int zzFState = " + dfa.entryState(action.getEntryState()) + ";");
        println("              int zzFPos = zzStartRead;");
        println("              if (zzFin.length <= zzBufferL.length) {");
        println("                zzFin = new boolean[zzBufferL.length+1];");
        println("              }");
        println("              boolean zzFinL[] = zzFin;");
        println("              while (zzFState != -1 && zzFPos < zzMarkedPos) {");
        println("                zzFinL[zzFPos] = ((zzAttrL[zzFState] & 1) == 1);");
        println("                zzInput = Character.codePointAt(zzBufferL, zzFPos, zzMarkedPos);");
        println("                zzFPos += Character.charCount(zzInput);");
        println("                zzFState = zzTransL[ zzRowMapL[zzFState] + zzCMap(zzInput) ];");
        println("              }");
        println("              if (zzFState != -1) {");
        println("                zzFinL[zzFPos++] = ((zzAttrL[zzFState] & 1) == 1);");
        println("              }");
        println("              while (zzFPos <= zzMarkedPos) {");
        println("                zzFinL[zzFPos++] = false;");
        println("              }");
        println();
        println("              zzFState = " + dfa.entryState(action.getEntryState() + 1) + ";");
        println("              zzFPos = zzMarkedPos;");
        println("              while (!zzFinL[zzFPos] || (zzAttrL[zzFState] & 1) != 1) {");
        println(
            "                zzInput = Character.codePointBefore(zzBufferL, zzFPos, zzStartRead);");
        println("                zzFPos -= Character.charCount(zzInput);");
        println("                zzFState = zzTransL[ zzRowMapL[zzFState] + zzCMap(zzInput) ];");
        println("              };");
        println("              zzMarkedPos = zzFPos;");
        println("            }");
      }

      if (scanner.debugOption()) {
        print("            System.out.println(");
        if (scanner.lineCount()) print("\"line: \"+(yyline+1)+\" \"+");
        if (scanner.columnCount()) print("\"col: \"+(yycolumn+1)+\" \"+");
        if (scanner.charCount()) print("\"char: \"+yychar+\" \"+");
        println("\"match: --\"+zzToPrintable(yytext())+\"--\");");
        print("            System.out.println(\"action [" + action.priority + "] { ");
        print(escapify(action.content));
        println(" }\");");
      }

      println("            { " + action.content);
      println("            }");
      println("          // fall through");
      println("          case " + (i++) + ": break;");
    }
  }