popup error if infinite loop

git-svn-id: svn+ssh://svn.sourceforge.jp/svnroot/kita/kita/trunk@935 56b19765-1e22-0410-a548-a0f45d66c51a

diff --git a/kita/src/pref.cpp b/kita/src/pref.cpp
index 20e80f1..1b4c278 100644 (file)
--- a/kita/src/pref.cpp
+++ b/kita/src/pref.cpp
@@ -176,6 +176,12 @@ void DebugPrefPage::replace()
 {
     QString fromURL = fromURLLine->text();
     QString toURL = toURLLine->text();
+    
+    if ( toURL.find( fromURL ) == 0 ) {
+        QMessageBox::critical( this, QString( "replace" ),
+            QString( "'To' URL must not contain 'From' URL." ) );;
+        return;
+    }
 
     if ( QMessageBox::warning( this, QString( "replace" ),
         QString( "This tool may possibly break thread's info.\n"