redsquirrel · October 14, 2008 10:21 · Oct 14, 2008
diff --git a/gistfile1.java b/gistfile1.java
@@ -0,0 +1,34 @@
+  class SymbolReplacer {
+    protected String stringToReplace;
+
+    SymbolReplacer(String s) {
+      this.stringToReplace = s;
+    }
+
+    String replace() {
+      Pattern symbolPattern = Pattern.compile("\\$([a-zA-Z]\\w*)");
+      int startingPosition = 0;
+      while (true) {
+        Matcher symbolMatcher =
+symbolPattern.matcher(stringToReplace.substring(startingPosition));
+        if (symbolMatcher.find()) {
+          startingPosition += replaceSymbol(symbolMatcher);
+        } else
+          break;
+      }
+      return stringToReplace;
+    }
+
+    private int replaceSymbol(Matcher symbolMatcher) {
+      String symbolName = symbolMatcher.group(1);
+      if (getSymbol(symbolName) != null)
+        stringToReplace = stringToReplace.replace("$" + symbolName,
+translate(symbolName));
+      return symbolMatcher.start(1);
+    }
+
+    protected String translate(String symbolName) {
+      return getSymbol(symbolName);
+    }
+
+  }