1 files changed, 29 insertions, 0 deletions
diff --git a/src/cgeo/geocaching/cgCache.java b/src/cgeo/geocaching/cgCache.java
index 8b2bb00..dae75e6 100644
--- a/src/cgeo/geocaching/cgCache.java
+++ b/src/cgeo/geocaching/cgCache.java
@@ -3,8 +3,11 @@ package cgeo.geocaching;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 import android.text.Spannable;
+import android.util.Log;
 
 public class cgCache {
 
@@ -233,4 +236,30 @@ public class cgCache {
 		}
 		return true;
 	}
+
+	/**
+	 * checks if a page contains the guid of a cache
+	 *
+	 * @param cache  the cache to look for
+	 * @param page   the page to search in
+	 *
+	 * @return  true: page contains guid of cache, false: otherwise
+	 */
+	boolean isGuidContainedInPage(final String page) {
+		// check if the guid of the cache is anywhere in the page
+		if (guid == null  || guid.length() == 0) {
+			return false;
+		}
+		Pattern patternOk = Pattern.compile(guid, Pattern.CASE_INSENSITIVE);
+		Matcher matcherOk = patternOk.matcher(page);
+		if (matcherOk.find()) {
+			Log.i(cgSettings.tag, "cgCache.isGuidContainedInPage: guid '" + guid + "' found");
+			return true;
+		} else {
+			Log.i(cgSettings.tag, "cgCache.isGuidContainedInPage: guid '" + guid + "' not found");
+			return false;
+		}
+	}
+
+
 }