RichString: refactor writing limited amount of columns

Closes: #468

1 files changed, 5 insertions, 0 deletions

diff --git a/RichString.h b/RichString.h
index 73e78204..7464fff1 100644
--- a/RichString.h
+++ b/RichString.h
@@ -52,10 +52,15 @@ void RichString_setAttr(RichString* this, int attrs);
 
 void RichString_appendChr(RichString* this, int attrs, char c, int count);
 
+/* All appending and writing functions return the number of written characters (not columns). */
+
 int RichString_appendWide(RichString* this, int attrs, const char* data);
 
 int RichString_appendnWide(RichString* this, int attrs, const char* data, int len);
 
+/* columns takes the maximum number of columns to write and contains on return the number of columns written. */
+int RichString_appendnWideColumns(RichString* this, int attrs, const char* data, int len, int* columns);
+
 int RichString_writeWide(RichString* this, int attrs, const char* data);
 
 int RichString_appendAscii(RichString* this, int attrs, const char* data);