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127 lines
4.1 KiB
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127 lines
4.1 KiB
Plaintext
*ft_raku.txt* The Raku programming language filetype
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*vim-raku*
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Vim-raku provides syntax highlighting, indentation, and other support for
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editing Raku programs.
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1. Using Unicode in your Raku files |raku-unicode|
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==============================================================================
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1. Using Unicode in your Raku files *raku-unicode*
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Defining new operators using Unicode symbols is a good way to make your
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Raku program easy to read. See:
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https://perl6advent.wordpress.com/2012/12/18/day-18-formulas-resistance-is-futile/
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While Raku does define ASCII alternatives for some common operators (see
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https://docs.raku.org/language/unicode_ascii), using the full range of
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Unicode operators is highly desirable. Your operating system provides input
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facilities, but using the features built in to Vim may be preferable.
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The natural way to produce these symbols in Vim is to use digraph shortcuts
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(:help |digraphs-use|). Many of them are defined; type `:digraphs` to get
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the list. A convenient way to read the list of digraphs is to save them in a
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file. From the shell: >
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vim +'redir >/tmp/vim-digraphs-listing.txt' +digraphs +'redir END' +q
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Some of them are available with standard Vim digraphs:
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<< « /0 ∅ !< ≮ ~
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>> » Ob ∘ !> ≯ ~
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., … 00 ∞ (C ⊂ ~
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(U ∩ -: ÷ )C ⊃ ~
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)U ∪ (_ ⊆ >= ≥ ~
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?= ≅ )_ ⊇ =< ≤ ~
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(- ∈ ?= ≅ != ≠ ~
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-) ∋ ?- ≃ ~
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The Greek alphabet is available with '*' followed by a similar Latin symbol:
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*p π ~
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*t τ ~
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*X × ~
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Numbers, subscripts and superscripts are available with 's' and 'S':
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0s ₀ 0S ⁰ ~
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1s ₁ 1S ¹ ~
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2s ₂ 9S ⁹ ~
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But some don't come defined by default. Those are digraph definitions you can
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add in your ~/.vimrc file. >
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exec 'digraph \\ '.char2nr('∖')
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exec 'digraph \< '.char2nr('≼')
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exec 'digraph \> '.char2nr('≽')
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exec 'digraph (L '.char2nr('⊈')
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exec 'digraph )L '.char2nr('⊉')
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exec 'digraph (/ '.char2nr('⊄')
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exec 'digraph )/ '.char2nr('⊅')
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exec 'digraph )/ '.char2nr('⊅')
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exec 'digraph U+ '.char2nr('⊎')
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exec 'digraph 0- '.char2nr('⊖')
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" Euler's constant
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exec 'digraph ne '.char2nr('𝑒')
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" Raku's atomic operations marker
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exec 'digraph @@ '.char2nr('⚛')
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Alternatively, you can write Insert mode abbreviations that convert ASCII-
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based operators into their single-character Unicode equivalent. >
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iabbrev <buffer> !(<) ⊄
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iabbrev <buffer> !(<=) ⊈
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iabbrev <buffer> !(>) ⊅
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iabbrev <buffer> !(>=) ⊉
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iabbrev <buffer> !(cont) ∌
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iabbrev <buffer> !(elem) ∉
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iabbrev <buffer> != ≠
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iabbrev <buffer> (&) ∩
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iabbrev <buffer> (+) ⊎
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iabbrev <buffer> (-) ∖
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iabbrev <buffer> (.) ⊍
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iabbrev <buffer> (<) ⊂
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iabbrev <buffer> (<+) ≼
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iabbrev <buffer> (<=) ⊆
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iabbrev <buffer> (>) ⊃
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iabbrev <buffer> (>+) ≽
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iabbrev <buffer> (>=) ⊇
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iabbrev <buffer> (\|) ∪
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iabbrev <buffer> (^) ⊖
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iabbrev <buffer> (atomic) ⚛
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iabbrev <buffer> (cont) ∋
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iabbrev <buffer> (elem) ∈
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iabbrev <buffer> * ×
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iabbrev <buffer> **0 ⁰
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iabbrev <buffer> **1 ¹
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iabbrev <buffer> **2 ²
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iabbrev <buffer> **3 ³
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iabbrev <buffer> **4 ⁴
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iabbrev <buffer> **5 ⁵
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iabbrev <buffer> **6 ⁶
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iabbrev <buffer> **7 ⁷
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iabbrev <buffer> **8 ⁸
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iabbrev <buffer> **9 ⁹
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iabbrev <buffer> ... …
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iabbrev <buffer> / ÷
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iabbrev <buffer> << «
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iabbrev <buffer> <<[=]<< «=«
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iabbrev <buffer> <<[=]>> «=»
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iabbrev <buffer> <= ≤
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iabbrev <buffer> =~= ≅
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iabbrev <buffer> >= ≥
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iabbrev <buffer> >> »
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iabbrev <buffer> >>[=]<< »=«
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iabbrev <buffer> >>[=]>> »=»
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iabbrev <buffer> Inf ∞
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iabbrev <buffer> atomic-add-fetch ⚛+=
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iabbrev <buffer> atomic-assign ⚛=
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iabbrev <buffer> atomic-fetch ⚛
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iabbrev <buffer> atomic-dec-fetch --⚛
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iabbrev <buffer> atomic-fetch-dec ⚛--
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iabbrev <buffer> atomic-fetch-inc ⚛++
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iabbrev <buffer> atomic-inc-fetch ++⚛
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iabbrev <buffer> atomic-sub-fetch ⚛−=
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iabbrev <buffer> e 𝑒
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iabbrev <buffer> o ∘
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iabbrev <buffer> pi π
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iabbrev <buffer> set() ∅
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iabbrev <buffer> tau τ
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<
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vim:tw=78:ts=8:noet:ft=help:norl:
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