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70 lines
2.4 KiB
Markdown
70 lines
2.4 KiB
Markdown
## Fira Code: monospaced font with programming ligatures
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#### [Download Fira Code v0.3](https://github.com/tonsky/FiraCode/releases/download/0.3/FiraCode-Regular.otf)
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### Problem
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Programmers use a lot of symbols, often encoded with several characters. For human brain sequences like `->`, `<=` or `:=` are single logical token, even if they take two or three places on the screen. Your eye spends non-zero amount of evergy to scan, parse and join multiple characters into a single logical one. Ideally, all programming languages should be designed with full-fledged Unicode symbols for operators, but that’s not the case yet.
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### Solution
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Fira Code is a Fira Mono font extended with a set of ligatures for common programming multi-character combinations. This is just a font rendering feature: underlying code remains ASCII-compatible. This helps to read and understand code faster. For some frequent sequences like `..` or `//` ligatures allow us to correct spacing.
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### Fira Code (with ligatures):
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<img src="./showcases/all_ligatures.png" style="width: 728px; height: 175px;"/>
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Compare to Fira Mono (without ligatures):
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<img src="./showcases/no_ligatures.png" style="width: 728px; height: 175px;"/>
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### Editor support
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Please refer to [Hasklig Readme](https://github.com/i-tu/Hasklig) for editor support
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_Note:_ I’m not a font designer, and Fira Code is built in sort of [a hacky way](https://github.com/mozilla/Fira/issues/62) from OTF version of Fira Mono. Please forgive me if it doesn’t work for you. Help will be greatly appreciated.
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### Code examples
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Erlang:
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<img src="./showcases/erlang.png" width="405" height="433" />
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Go:
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<img src="./showcases/go.png" width="274" height="171"/>
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Haskell:
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<img src="./showcases/haskell.png" width="319" height="265"/>
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JavaScript:
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<img src="./showcases/javascript.png" width="361" height="183"/>
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Ruby:
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<img src="./showcases/ruby.png" width="464" height="143"/>
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### Credits
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This work is based on OFL-licensed [Fira Mono font](https://github.com/mozilla/Fira). Original Fira Mono font was not changed, only extended.
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Fira Code was inspired by [Hasklig font](https://github.com/i-tu/Hasklig): Ligatures for Haskell code
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### Changelog
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**0.3**: `~@` `#?` `=:=` `=<`
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**0.2.1**: Fixed witdh of `&&` and `||`
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**0.2**: `-->` `<--` `&&` `||` `=>>` `=/=`
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**0.1**
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`>>=` `=<<` `<<=` `->>` `->` `=>` `<<-` `<-`
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`===` `==` `<=>` `>=` `<=` `>>` `<<` `!==` `!=` `<>`
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`:=` `++` `#(` `#_`
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`::` `...` `..` `!!` `//` `/*` `*/` `/>`
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