1 files changed, 90 insertions, 0 deletions
diff --git a/plugin/icedteanp/java/sun/applet/PluginParameterParser.java b/plugin/icedteanp/java/sun/applet/PluginParameterParser.java
new file mode 100644
index 0000000..9ce578f
--- /dev/null
+++ b/plugin/icedteanp/java/sun/applet/PluginParameterParser.java
@@ -0,0 +1,90 @@
+package sun.applet;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
+import net.sourceforge.jnlp.PluginParameters;
+
+class PluginParameterParser {
+    static private final char DELIMITER_ESCAPE = ':';
+    static private final String KEY_VALUE_DELIMITER = ";";
+
+    /**
+     * Unescape characters passed from C++.
+     * Specifically, "\n" -> new line, "\\" -> "\", "\:" -> ";"
+     *
+     * @param str The string to unescape
+     * @return The unescaped string
+     */
+    static String unescapeString(String str) {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < str.length(); i++) {
+            char chr = str.charAt(i);
+            if (chr != '\\') {
+                sb.append(chr);
+            } else {
+                i++; // Skip ahead one
+                chr = str.charAt(i);
+                if (chr == 'n') {
+                    sb.append('\n');
+                } else if (chr == '\\') {
+                    sb.append('\\');
+                } else if (chr == DELIMITER_ESCAPE) {
+                    sb.append(KEY_VALUE_DELIMITER);
+                }
+            }
+        }
+        return sb.toString();
+    }
+
+    /**
+     * Parse semi-colon delimited key-value pairs.
+     * @param keyvalString the escaped, semicolon-delimited, string
+     * @return a map of the keys to the values
+     */
+    static Map<String, String> parseEscapedKeyValuePairs(String keyvalString) {
+        // Split on ';', ensuring empty strings at end are kept
+        String[] strs = keyvalString.split(KEY_VALUE_DELIMITER, -1 /* Keep empty strings */);
+        System.out.println("Split array: " + Arrays.toString(strs));
+
+        Map<String, String> attributes = new HashMap<String, String>();
+
+        /* Note that we will typically have one empty string at end */
+        for (int i = 0; i < strs.length - 1; i += 2) {
+            String key = unescapeString(strs[i]).toLowerCase();
+            String value = unescapeString(strs[i + 1]);
+            attributes.put(key, value);
+        }
+
+        return attributes;
+    }
+
+    static boolean isInt(String s) {
+        return s.matches("^-?\\d+$");
+    }
+
+    /**
+     * Parsers parameters given a string containing 
+     * parameters in quotes.
+     * 
+     * @param width default applet width
+     * @param height default applet height
+     * @param parameterString the parameters 
+     * @return the attributes in a hash table
+     */
+    public PluginParameters parse(String width,
+            String height, String parameterString) {
+        Map<String, String> params = parseEscapedKeyValuePairs(parameterString);
+
+        if (params.get("width") == null || !isInt(params.get("width"))) {
+            params.put("width", width);
+        }
+
+        if (params.get("height") == null || !isInt(params.get("height"))) {
+            params.put("height", height);
+        }
+
+        return new PluginParameters(params);
+    }
+}