|
25056
|
1 *ft_raku.txt* The Raku programming language filetype
|
|
24520
|
2
|
|
|
3 *vim-raku*
|
|
|
4
|
|
|
5 Vim-raku provides syntax highlighting, indentation, and other support for
|
|
|
6 editing Raku programs.
|
|
|
7
|
|
|
8 1. Using Unicode in your Raku files |raku-unicode|
|
|
|
9
|
|
|
10 ==============================================================================
|
|
|
11 1. Using Unicode in your Raku files *raku-unicode*
|
|
|
12
|
|
|
13 Defining new operators using Unicode symbols is a good way to make your
|
|
|
14 Raku program easy to read. See:
|
|
|
15 https://perl6advent.wordpress.com/2012/12/18/day-18-formulas-resistance-is-futile/
|
|
|
16
|
|
|
17 While Raku does define ASCII alternatives for some common operators (see
|
|
|
18 https://docs.raku.org/language/unicode_ascii), using the full range of
|
|
|
19 Unicode operators is highly desirable. Your operating system provides input
|
|
|
20 facilities, but using the features built in to Vim may be preferable.
|
|
|
21
|
|
|
22 The natural way to produce these symbols in Vim is to use digraph shortcuts
|
|
|
23 (:help |digraphs-use|). Many of them are defined; type `:digraphs` to get
|
|
|
24 the list. A convenient way to read the list of digraphs is to save them in a
|
|
|
25 file. From the shell: >
|
|
|
26 vim +'redir >/tmp/vim-digraphs-listing.txt' +digraphs +'redir END' +q
|
|
|
27
|
|
|
28 Some of them are available with standard Vim digraphs:
|
|
|
29 << « /0 ∅ !< ≮ ~
|
|
|
30 >> » Ob ∘ !> ≯ ~
|
|
|
31 ., … 00 ∞ (C ⊂ ~
|
|
|
32 (U ∩ -: ÷ )C ⊃ ~
|
|
|
33 )U ∪ (_ ⊆ >= ≥ ~
|
|
|
34 ?= ≅ )_ ⊇ =< ≤ ~
|
|
|
35 (- ∈ ?= ≅ != ≠ ~
|
|
|
36 -) ∋ ?- ≃ ~
|
|
|
37
|
|
|
38 The Greek alphabet is available with '*' followed by a similar Latin symbol:
|
|
|
39 *p π ~
|
|
|
40 *t τ ~
|
|
|
41 *X × ~
|
|
|
42
|
|
|
43 Numbers, subscripts and superscripts are available with 's' and 'S':
|
|
|
44 0s ₀ 0S ⁰ ~
|
|
|
45 1s ₁ 1S ¹ ~
|
|
|
46 2s ₂ 9S ⁹ ~
|
|
|
47
|
|
24911
|
48 But some don't come defined by default. Those are digraph definitions you can
|
|
24520
|
49 add in your ~/.vimrc file. >
|
|
|
50 exec 'digraph \\ '.char2nr('∖')
|
|
|
51 exec 'digraph \< '.char2nr('≼')
|
|
|
52 exec 'digraph \> '.char2nr('≽')
|
|
|
53 exec 'digraph (L '.char2nr('⊈')
|
|
|
54 exec 'digraph )L '.char2nr('⊉')
|
|
|
55 exec 'digraph (/ '.char2nr('⊄')
|
|
|
56 exec 'digraph )/ '.char2nr('⊅')
|
|
|
57 exec 'digraph )/ '.char2nr('⊅')
|
|
|
58 exec 'digraph U+ '.char2nr('⊎')
|
|
|
59 exec 'digraph 0- '.char2nr('⊖')
|
|
|
60 " Euler's constant
|
|
|
61 exec 'digraph ne '.char2nr('𝑒')
|
|
|
62 " Raku's atomic operations marker
|
|
|
63 exec 'digraph @@ '.char2nr('⚛')
|
|
|
64
|
|
|
65 Alternatively, you can write Insert mode abbreviations that convert ASCII-
|
|
|
66 based operators into their single-character Unicode equivalent. >
|
|
|
67 iabbrev <buffer> !(<) ⊄
|
|
|
68 iabbrev <buffer> !(<=) ⊈
|
|
|
69 iabbrev <buffer> !(>) ⊅
|
|
|
70 iabbrev <buffer> !(>=) ⊉
|
|
|
71 iabbrev <buffer> !(cont) ∌
|
|
|
72 iabbrev <buffer> !(elem) ∉
|
|
|
73 iabbrev <buffer> != ≠
|
|
|
74 iabbrev <buffer> (&) ∩
|
|
|
75 iabbrev <buffer> (+) ⊎
|
|
|
76 iabbrev <buffer> (-) ∖
|
|
|
77 iabbrev <buffer> (.) ⊍
|
|
|
78 iabbrev <buffer> (<) ⊂
|
|
|
79 iabbrev <buffer> (<+) ≼
|
|
|
80 iabbrev <buffer> (<=) ⊆
|
|
|
81 iabbrev <buffer> (>) ⊃
|
|
|
82 iabbrev <buffer> (>+) ≽
|
|
|
83 iabbrev <buffer> (>=) ⊇
|
|
|
84 iabbrev <buffer> (\|) ∪
|
|
|
85 iabbrev <buffer> (^) ⊖
|
|
|
86 iabbrev <buffer> (atomic) ⚛
|
|
|
87 iabbrev <buffer> (cont) ∋
|
|
|
88 iabbrev <buffer> (elem) ∈
|
|
|
89 iabbrev <buffer> * ×
|
|
|
90 iabbrev <buffer> **0 ⁰
|
|
|
91 iabbrev <buffer> **1 ¹
|
|
|
92 iabbrev <buffer> **2 ²
|
|
|
93 iabbrev <buffer> **3 ³
|
|
|
94 iabbrev <buffer> **4 ⁴
|
|
|
95 iabbrev <buffer> **5 ⁵
|
|
|
96 iabbrev <buffer> **6 ⁶
|
|
|
97 iabbrev <buffer> **7 ⁷
|
|
|
98 iabbrev <buffer> **8 ⁸
|
|
|
99 iabbrev <buffer> **9 ⁹
|
|
|
100 iabbrev <buffer> ... …
|
|
|
101 iabbrev <buffer> / ÷
|
|
|
102 iabbrev <buffer> << «
|
|
|
103 iabbrev <buffer> <<[=]<< «=«
|
|
|
104 iabbrev <buffer> <<[=]>> «=»
|
|
|
105 iabbrev <buffer> <= ≤
|
|
|
106 iabbrev <buffer> =~= ≅
|
|
|
107 iabbrev <buffer> >= ≥
|
|
|
108 iabbrev <buffer> >> »
|
|
|
109 iabbrev <buffer> >>[=]<< »=«
|
|
|
110 iabbrev <buffer> >>[=]>> »=»
|
|
|
111 iabbrev <buffer> Inf ∞
|
|
|
112 iabbrev <buffer> atomic-add-fetch ⚛+=
|
|
|
113 iabbrev <buffer> atomic-assign ⚛=
|
|
|
114 iabbrev <buffer> atomic-fetch ⚛
|
|
|
115 iabbrev <buffer> atomic-dec-fetch --⚛
|
|
|
116 iabbrev <buffer> atomic-fetch-dec ⚛--
|
|
|
117 iabbrev <buffer> atomic-fetch-inc ⚛++
|
|
|
118 iabbrev <buffer> atomic-inc-fetch ++⚛
|
|
|
119 iabbrev <buffer> atomic-sub-fetch ⚛−=
|
|
|
120 iabbrev <buffer> e 𝑒
|
|
|
121 iabbrev <buffer> o ∘
|
|
|
122 iabbrev <buffer> pi π
|
|
|
123 iabbrev <buffer> set() ∅
|
|
|
124 iabbrev <buffer> tau τ
|
|
|
125 <
|
|
|
126 vim:tw=78:ts=8:noet:ft=help:norl:
|
