Macwelt 1/Macwelt DVD 1.toast/Software für Mac-OS X/Entwickler-Tools/netbeans/modules/ext/djava.jar/koala/dynamicjava/interpreter/Main.class

Java Class File | 2000-03-14 | 4.0 KB | 192 lines

package koala.dynamicjava.interpreter;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import koala.dynamicjava.parser.wrapper.JavaCCParserFactory;

public class Main {
   private static String appname;

   public static void main(String[] var0) {
      appname = var0[0];
      String var1 = "standard input";
      String var2 = "";
      String var3 = "";
      Object var4 = System.in;
      String var5 = null;
      String var6 = null;
      TreeInterpreter var7 = new TreeInterpreter(new JavaCCParserFactory());
      var7.addLibrarySuffix(".java");
      int var8 = 1;

      while(var0.length > var8) {
         if (var0[var8].equals("-lp")) {
            ++var8;
            if (var0.length <= var8) {
               usage();
               return;
            }

            var2 = var0[var8++];
         } else if (var0[var8].equals("-cp")) {
            ++var8;
            if (var0.length <= var8) {
               usage();
               return;
            }

            var3 = var0[var8++];
         } else {
            if (!var0[var8].equals("-i")) {
               if (var0[var8].equals("-h")) {
                  usage();
                  return;
               }

               if (var0[var8].equals("-c")) {
                  ++var8;
                  if (var0.length <= var8) {
                     usage();
                     return;
                  }

                  var6 = var0[var8++] + ".main(new String[] {";
                  if (var8 < var0.length) {
                     var6 = var6 + '"' + var0[var8++] + '"';
                  }

                  while(var8 < var0.length) {
                     var6 = var6 + ", " + '"' + var0[var8] + '"';
                     ++var8;
                  }

                  var6 = var6 + " });";
               }
               break;
            }

            ++var8;
            if (var0.length <= var8) {
               usage();
               return;
            }

            var5 = var0[var8++];
         }
      }

      if (var0.length > var8 + 1) {
         usage();
      } else {
         setLibraryPath(var7, var2);
         setClassPath(var7, var3);
         if (var5 != null) {
            try {
               FileInputStream var9 = new FileInputStream(var5);

               try {
                  var7.interpret(var9, var5);
               } catch (InterpreterException var15) {
                  System.err.println(var15.getMessage());
               } catch (Throwable var16) {
                  System.err.println(var16);
               }
            } catch (FileNotFoundException var17) {
               System.out.println("File " + var5 + " not found.");
               return;
            }
         }

         if (var0.length > var8) {
            var1 = var0[var8];

            try {
               var4 = new FileInputStream(var1);
            } catch (FileNotFoundException var14) {
               System.out.println("File " + var1 + " not found.");
               return;
            }
         }

         try {
            if (var6 != null) {
               var7.interpret(new StringReader(var6), "main method call");
            } else {
               if (var4 == System.in) {
                  System.out.println("Reading from standard input");

                  while(true) {
                     String var25 = "";
                     InputStreamReader var10 = new InputStreamReader((InputStream)var4);
                     int var11 = 0;

                     int var13;
                     for(int var12 = 0; var11 < 2 && var12 < 2; var25 = var25 + (char)var13) {
                        var13 = ((Reader)var10).read();
                        if (var13 == 10) {
                           ++var11;
                        } else if (var13 == 13) {
                           ++var12;
                        } else {
                           var11 = 0;
                           var12 = 0;
                        }
                     }

                     Object var26 = var7.interpret(new StringReader(var25), var1);
                     System.out.println("=> " + var26);
                  }
               }

               var7.interpret((InputStream)var4, var1);
            }
         } catch (InterpreterException var18) {
            System.err.println(var18.getMessage());
         } catch (Throwable var19) {
            var19.printStackTrace();
            System.err.println(var19);
         }

         if (var4 == System.in) {
            System.out.println("Interactive loop stopped");
         }

      }
   }

   private static void setLibraryPath(Interpreter var0, String var1) {
      int var2;
      while((var2 = var1.indexOf(58)) != -1 || (var2 = var1.indexOf(59)) != -1) {
         var0.addLibraryPath(var1.substring(0, var2));
         var1 = var1.substring(var2 + 1, var1.length());
      }

      var0.addLibraryPath(var1);
   }

   private static void setClassPath(Interpreter var0, String var1) {
      int var2;
      while((var2 = var1.indexOf(58)) != -1 || (var2 = var1.indexOf(59)) != -1) {
         var0.addClassPath(var1.substring(0, var2));
         var1 = var1.substring(var2 + 1, var1.length());
      }

      var0.addClassPath(var1);
   }

   private static void usage() {
      System.out.println("Usage:");
      System.out.println("       " + appname + " [options] [file]");
      System.out.println("     or");
      System.out.println("       " + appname + " [options] -c classname [args ...]");
      System.out.println("Options:");
      System.out.println("       -cp path   the class path ((semi)colon separated paths)");
      System.out.println("       -lp path   the library path ((semi)colon separated paths)");
      System.out.println("       -i file    the initialization file");
   }
}