The result of this mixin uses the same initialization arguments as the mixin's argument.
When files are saved from this text%, a check is made to see if there are any non-string-snip% objects in the text%. If so, it is saved using the file format 'std. (see set-file-format for more information. If not, the file format passed to save-file is used.
The line-spacing argument sets the additional amount of space (in DC units) inserted between each line in the editor when the editor is displayed. This spacing is included in the reported height of each line.
See set-tabs for information about tabstops.
A new keymap% object is created for the new editor. See also get-keymap and set-keymap.
A new style-list object is created for the new editor. See also get-style-list and set-style-list.