multiline text editor

text widget overview - overview of gtktextbuffer, gtktextview, and friends
gtktextiter - text buffer iterator
gtktextmark - a position in the buffer preserved across buffer modifications
gtktextbuffer - stores attributed text for display in a gtktextview
gtktexttag - a tag that can be applied to text in a gtktextbuffer
gtktexttagtable - collection of tags that can be used together
gtktextview - widget that displays a gtktextbuffer