Computer Shopper 139/dpcs0999.iso/Web/CFserver/data1.cab/Java/allaire/util/template/LoopElement.class

Java Class File | 1999-04-12 | 3.6 KB | 152 lines

package allaire.util.template;

import allaire.util.TextUtils;
import netscape.util.Enumeration;
import netscape.util.Vector;

class LoopElement extends TemplateTagElement {
   private static final int LOOP_LIST = 0;
   private static final int LOOP_INDEX = 1;
   private static final int LOOP_CONDITION = 2;
   private static final String INDEX = "INDEX";
   private static final String FROM = "FROM";
   // $FF: renamed from: TO java.lang.String
   private static final String field_0 = "TO";
   private static final String STEP = "STEP";
   private static final String LIST = "LIST";
   private static final String CONDITION = "CONDITION";

   private void doIndexLoop(String var1, int var2, int var3, int var4, TemplateOutput var5) throws TemplateException {
      Vector var6 = new Vector();

      for(int var7 = var2; var7 <= var3; var7 += var4) {
         var6.addElement(String.valueOf(var7));
      }

      this.doListLoop(var1, var6, var5);
   }

   public void process(TemplateOutput var1) throws TemplateException {
      try {
         this.doLoop(var1);
      } catch (LoopBreakException var2) {
      }
   }

   private void stripTrailingSpaces() {
      Vector var1 = ((TemplateTagElement)this).getSubElements();
      if (var1.size() > 0) {
         TemplateElement var2 = (TemplateElement)var1.lastElement();
         if (var2 instanceof TextElement) {
            TextElement var3 = (TextElement)var2;
            String var4 = var3.getText();
            int var5 = var4.length();

            for(int var6 = var5 - 1; var6 >= 0; --var6) {
               char var7 = var4.charAt(var6);
               if (!Character.isSpace(var7)) {
                  break;
               }

               if (var7 == '\n') {
                  var4 = var4.substring(0, var6 + 1);
                  var3.setText(var4);
                  return;
               }
            }
         }
      }

   }

   private void doLoop(TemplateOutput var1) throws TemplateException {
      this.stripLeadingNewline();
      this.stripTrailingSpaces();
      TagAttributes var2 = ((TemplateTagElement)this).getAttributesRaw();
      String var3 = var2.get("CONDITION");
      if (var3 != null) {
         this.doConditionalLoop(var3, var1);
      } else {
         String var4 = var2.get("LIST");
         if (var4 != null) {
            String var10 = var2.getRequired("INDEX");
            Vector var11 = TextUtils.getListElements(((TemplateElement)this).resolveExpressionsInText(var4));
            this.doListLoop(var10, var11, var1);
         } else {
            String var5 = var2.getRequired("INDEX");
            int var6 = Integer.parseInt(((TemplateElement)this).resolveExpressionsInText(var2.getRequired("FROM")));
            int var7 = Integer.parseInt(((TemplateElement)this).resolveExpressionsInText(var2.getRequired("TO")));
            int var8 = 1;
            String var9 = var2.get("STEP");
            if (var9 != null) {
               var8 = Integer.parseInt(((TemplateElement)this).resolveExpressionsInText(var9));
            }

            this.doIndexLoop(var5, var6, var7, var8, var1);
         }
      }
   }

   private void doListLoop(String var1, Vector var2, TemplateOutput var3) throws TemplateException {
      Enumeration var4 = var2.elements();

      while(var4.hasMoreElements()) {
         String var5 = (String)var4.nextElement();
         SymbolTable var6 = ((TemplateElement)this).getParser().getRuntimeContext().getSymbolTable();
         var6.set(var1, var5);

         try {
            this.processChildren(var3);
         } catch (LoopContinueException var7) {
         }
      }

   }

   private void doConditionalLoop(String var1, TemplateOutput var2) throws TemplateException {
      while(((TemplateTagElement)this).evaluateExpression(var1)) {
         try {
            this.processChildren(var2);
         } catch (LoopContinueException var3) {
         }
      }

   }

   private void processChildren(TemplateOutput var1) throws TemplateException {
      Enumeration var2 = ((TemplateTagElement)this).getSubElements().elements();

      while(var2.hasMoreElements()) {
         TemplateElement var3 = (TemplateElement)var2.nextElement();
         var3.process(var1);
      }

   }

   private void stripLeadingNewline() {
      Vector var1 = ((TemplateTagElement)this).getSubElements();
      if (var1.size() > 0) {
         TemplateElement var2 = (TemplateElement)var1.elementAt(0);
         if (var2 instanceof TextElement) {
            TextElement var3 = (TextElement)var2;
            String var4 = var3.getText();
            int var5 = var4.length();

            for(int var6 = 0; var6 < var5; ++var6) {
               char var7 = var4.charAt(var6);
               if (!Character.isSpace(var7)) {
                  break;
               }

               if (var7 == '\n') {
                  var4 = var4.substring(Math.min(var6 + 1, var5 - 1));
                  var3.setText(var4);
                  return;
               }
            }
         }
      }

   }
}