TextSpan: Added Append() method for convenience.

src/apps/haiku-depot/textview/TextSpan.cpp

@@ -75,6 +75,13 @@ TextSpan::SetStyle(const CharacterStyle& style)
 }
 
 
+bool
+TextSpan::Append(const BString& text)
+{
+	return Insert(fCharCount, text);
+}
+
+
 bool
 TextSpan::Insert(int32 offset, const BString& text)
 {

src/apps/haiku-depot/textview/TextSpan.h

@@ -33,6 +33,7 @@ public:
 	inline	int32				CountChars() const
 									{ return fCharCount; }
 
+			bool				Append(const BString& text);
 			bool				Insert(int32 offset, const BString& text);
 			bool				Remove(int32 start, int32 count);