X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=MText.cs;h=b28180898a25d02e4266c77f10df1f3d6c90327d;hb=948496e0c55cfffced24b1053d17b19a9369f747;hp=9180c6204ef280b9e9e31bd9f9d2777a1a4d5b32;hpb=471297b4ac15917a2500cc391f2f1e28311e4308;p=m17n%2Fm17n-lib-cs.git

diff --git a/MText.cs b/MText.cs
index 9180c62..b281808 100644
--- a/MText.cs
+++ b/MText.cs
@@ -227,6 +227,16 @@ namespace M17N.Core
 
     public override string ToString () { return sb.ToString (); }
 
+    public static implicit operator MText (string str)
+    {
+      return new MText (str);
+    }
+
+    public static explicit operator string (MText mt)
+    {
+      return mt.ToString ();
+    }
+
     private static int inc_idx (StringBuilder sb, int i)
     {
       return (i + (Char.IsHighSurrogate (sb[i]) ? 2 : 1));
@@ -462,6 +472,11 @@ namespace M17N.Core
       return this;
     }
 
+    public MText Del ()
+    {
+      return Del (0, Length);
+    }
+
     public MText Del (int from, int to)
     {
       if (check_range (from, to, true))
@@ -621,7 +636,8 @@ namespace M17N.Core
 
     public object FindProp (MSymbol key, int pos, out int from, out int to)
     {
-      from = to = pos;
+      from = 0;
+      to = Length;
       check_pos (pos, false);
       
       MInterval i = (MInterval) intervals.Get (key);