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adobe-fonts / source-code-pro

Monospaced font family for user interface and coding environments
https://adobe-fonts.github.io/source-code-pro/
SIL Open Font License 1.1
19.83k stars 1.62k forks source link

Long arrows should be a multiple of monospace #194

Open wadler opened 6 years ago

wadler commented 6 years ago

Currently, long arrows (⟵ ⟸ ⟶ ⟹) have a length about 11/12 of the monospaced characters. For laying out code (e.g., in Agda) it would be extremely helpful if their length was an exact multiple of a monospace, with 3 characters wide being the obvious choice.

Similarly, floor and ceiling brackets (⌊ ⌋ ⌈ ⌉) have a width about 5/6 of the monospaced characters. Again, it would be extremely helpful if they were the same width as all the monospaced characters.

I am writing an online textbook for which Source Code Pro would be the perfect choice, if these issues were fixed. Thank you for creating Source Code Pro, which looks beautiful!

miguelsousa commented 6 years ago

Source Code (v2.030) does not support any of those arrow characters, so what you're getting is from a different font.

wadler commented 6 years ago

Aha! Thank you. Any chance that it could support them? Apologies for a newbie question, but how do I check which characters are in the font and which are not?

frankrolf commented 6 years ago

There are a few sites to test font files, among them https://wakamaifondue.com/ https://fontdrop.info

frankrolf commented 6 years ago

That said, it is difficult to support double-or triple-width characters in a true monospaced font. If not all glyphs have the same width, some environments won’t recognize the font as a monospaced font anymore.

wadler commented 6 years ago

Thank you to miguelsousa and frankrolf for the additional explanations.

PerBothner commented 2 years ago

That said, it is difficult to support double-or triple-width characters in a true monospaced font. If not all glyphs have the same width, some environments won’t recognize the font as a monospaced font anymore.

Certain characters (Emoji, CJK Kanji, some grapheme clusters, and others) are expected to be double-width in an otherwise monospace context. Ideally one would like to have monospace full-width (double-width) fonts that are designed to be used along with a matching monospace font.