Permit patching Operator Mono to succeed despite missing glyphs

[emanuelhouse]

In support of powerline/fonts#154

Patching Operator Mono produced the following errors due to attempting to remove missing glyphs:

Traceback (most recent call last):
File "./powerline-fontpatcher", line 144, in
raise SystemExit(main(sys.argv[1:]))
File "./powerline-fontpatcher", line 141, in main
return patch_fonts(args.source_font, args.target_fonts, args.rename_font)
File "./powerline-fontpatcher", line 133, in patch_fonts
patch_one_font(source_font, target_font, rename_font)
File "./powerline-fontpatcher", line 117, in patch_one_font
target_font[0xFB01].removePosSub('*') # fi ligature
TypeError: No such glyph

This commit first checks for the existence of glyphs 0xFB01 and 0xFB02 before attempting to remove them.

[pie6k]

That think should be merged. I've lost like 2 hours trying to convert my 'operator mono' font.

[MrZhang123]

@pie6k how to use fontpatcher ? I dowload the fontpatcher project and let the font in fontpatcher folder , i input the command in terminale

fontforge -script /Users/imac/Downloads/fontpatcher/setup.py OperatorMono-Book.otf

but console errorinvalid command name 'OperatorMono-Book.otf'
how to use fontpatcher ?

[juicejuice]

I don't know why this patch isn't merged. It works great.
Here's how I got things working (new install of MacOS X High Sierra 10.13.4).

1. Install Homebrew according to the one-liner on the brew.sh homepage
2. Install Fontforge and Python: brew install fontforge
3. Download the fontpatcher script and .sfd file from Github
4. Edit the fontpatcher script and change first line to: #!/usr/local/bin/python
5. Apply @emanuelhouse patch to the fontpatcher script
6. Patch all .otf files: ./powerline-fontpatcher.py --source-font powerline-symbols.sfd *.otf

[jsatk]

This should be merged. I even covered this in a blog post I wrote two years ago. https://jsatk.us/vim-tmux-italics-and-insanity-9a96b69eeca6

[ehartford]

can this be merged?