I'd like to have vim display my comments in italics, and I understand I need to place
cterm=italic
in the
hi Comment
line in the color.vim file I'm using. This, however, is having no effect on the text display, which I suspect has to do with some Terminal.app setting, unless I'm misunderstanding the vim syntax. I'd appreciate if someone can show me how to enable this feature.
Additionally, I am currently using the Monaco font, which does not have a separate italic file (however, the italic syntax-highlighting doesn't work for Consolas, Lucida, Bitstream Vera or other italic- or oblique-enabled fonts either). Assuming that a solution exists for fonts with italics, do I have to jump through any further hoops to get Monaco working?
Thanks for any input.
EDIT:
I'm surprised I haven't gotten an answer yet; this doesn't seem like it should be too difficult to do. Maybe it is. Alternatively, could someone explain why this would not be possible?
As of SnowLeopard, Terminal doesn’t support the italic attribute (SGR, value 3). Feel free to file a request at http://bugreporter.apple.com.
Update: Italic support was added to Terminal in macOS Sierra 10.12. Note that the xterm terminfo files included with that version of ncurses do not declare the italic sitm capability. See the vim-specific workaround in Bahman Eslami’s answer https://stackoverflow.com/a/53625973/754997 or cheon’s answer https://stackoverflow.com/a/48512956/754997 for creating a terminfo file that declares sitm.