add ligature support

[zeke]

I'm keen on getting ligature support implemented in fontcustom, as Webkit doesn't currently support CSS transitions on :before elements and I find it cumbersome to have to use UTF8 characters like &#xf100 in my HTML code. I peeked around a little in the fontforge docs, but it didn't seem immediately obvious how to go about adding ligatures. Have you guys looked into it much?

In the implementation I'm imaginging, the ligatures would be determined by the original SVG filenames, e.g. foo.svg becomes foo.

Here's my interim workaround:

# This helper is a stand-in until one of these problems is fixed:
# 
#1. fontcustom supports ligatures
#2. webkit supports CSS transitions on :before elements
def icon_for(word)
  words = %w(fukuoka github moon sun twitter)
  return "?" unless words.include?(word.to_s)
  "&#xf#{100 + words.index(word.to_s)}".html_safe
end

[endtwist]

The API for adding ligatures in fontforge is quite confusing. I'm working my way through it to add support as soon as possible, though.

[zeke]

Update: Chrome Canary now supports CSS transitions on :before elements, but ligature support would still be nice. @endtwist how can I help push this forward?

[endtwist]

I haven't really had enough time to dig into/experiment with ligature support yet. If you'd like to, though, take a look at the FontForge Python docs: http://fontforge.org/python.html

I believe the implementation will involve using the "addLookup" method (under "font") with a "gsub_ligature" type. However, that's as far as I've gotten w/r/t looking into a solution.

[jareware]

Any progress on this? Would be lovely!

[zeke]

I put a bounty on this feature: https://www.bountysource.com/#issues/154665-add-ligature-support

[skyzyx]

👍

[jasmussen]

Another vote for ligature support in FontCustom.

[dashie]

I've added a simple ligature support solution [https://github.com/dashie/fontcustom].

[JoshuaWise]

+1

[dsozzi]

is the ligature complete? I saw @dashie implemented a solution. Is this included in Head?

[tomasdev]

Bump!