Merge: names and concerns in model

[nit.git] / lib / standard / string.nit

diff --git a/lib/standard/string.nit b/lib/standard/string.nit
index 13bf585..fcc1f1b 100644 (file)
--- a/lib/standard/string.nit
+++ b/lib/standard/string.nit
@@ -611,6 +611,12 @@ abstract class String
        redef type SELFTYPE: String
 
        redef fun to_s do return self
+
+       fun append(s: String): SELFTYPE is abstract
+
+       fun prepend(s: String): SELFTYPE is abstract
+
+       fun insert_at(s: String, pos: Int): SELFTYPE is abstract
 end
 
 private class FlatSubstringsIter