The first line of a script may be in format of #! interpreter, so the shell will execute the script using the specific interpreter. This is so called shebang or shbang.
Similarly, there can be some special comment like
# -*- language -*-
or
# vim: tabstop=4 :
etc. Just like shbang is used to denote which interpreter to use, these comments are used to adjust the editor's behavior.
How to call these special comments? Maybe shdash or shvim? Are there some already defined slangs for these?
And is there wiki pages to show the list of shxxx, and those softwares follow such conventions?