comparison runtime/indent/elm.vim @ 20753:661eb972cb22

Update runtime files Commit: https://github.com/vim/vim/commit/acc224064033e5cea21ef7f1eefb356ca06ff11d Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 7 21:07:18 2020 +0200 Update runtime files
author Bram Moolenaar <Bram@vim.org>
date Sun, 07 Jun 2020 21:15:04 +0200
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children 9c221ad9634a
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20752:47b5de84b7f7 20753:661eb972cb22
1 " Elm indent plugin file
2 " Language: Elm
3 " Maintainer: Andreas Scharf <as@99n.de>
4 " Original Author: Joseph Hager <ajhager@gmail.com>
5 " Copyright: Joseph Hager <ajhager@gmail.com>
6 " License: BSD3
7 " Latest Revision: 2020-05-29
8
9 " Only load this indent file when no other was loaded.
10 if exists('b:did_indent')
11 finish
12 endif
13 let b:did_indent = 1
14
15 " Local defaults
16 setlocal expandtab
17 setlocal indentexpr=GetElmIndent()
18 setlocal indentkeys+=0=else,0=if,0=of,0=import,0=then,0=type,0\|,0},0\],0),=-},0=in
19 setlocal nolisp
20 setlocal nosmartindent
21
22 " Only define the function once.
23 if exists('*GetElmIndent')
24 finish
25 endif
26
27 " Indent pairs
28 function! s:FindPair(pstart, pmid, pend)
29 "call search(a:pend, 'bW')
30 return indent(searchpair(a:pstart, a:pmid, a:pend, 'bWn', 'synIDattr(synID(line("."), col("."), 0), "name") =~? "string\\|comment"'))
31 endfunction
32
33 function! GetElmIndent()
34 let l:lnum = v:lnum - 1
35
36 " Ident 0 if the first line of the file:
37 if l:lnum == 0
38 return 0
39 endif
40
41 let l:ind = indent(l:lnum)
42 let l:lline = getline(l:lnum)
43 let l:line = getline(v:lnum)
44
45 " Indent if current line begins with '}':
46 if l:line =~? '^\s*}'
47 return s:FindPair('{', '', '}')
48
49 " Indent if current line begins with 'else':
50 elseif l:line =~# '^\s*else\>'
51 if l:lline !~# '^\s*\(if\|then\)\>'
52 return s:FindPair('\<if\>', '', '\<else\>')
53 endif
54
55 " Indent if current line begins with 'then':
56 elseif l:line =~# '^\s*then\>'
57 if l:lline !~# '^\s*\(if\|else\)\>'
58 return s:FindPair('\<if\>', '', '\<then\>')
59 endif
60
61 " HACK: Indent lines in case with nearest case clause:
62 elseif l:line =~# '->' && l:line !~# ':' && l:line !~# '\\'
63 return indent(search('^\s*case', 'bWn')) + &shiftwidth
64
65 " HACK: Don't change the indentation if the last line is a comment.
66 elseif l:lline =~# '^\s*--'
67 return l:ind
68
69 " Align the end of block comments with the start
70 elseif l:line =~# '^\s*-}'
71 return indent(search('{-', 'bWn'))
72
73 " Indent double shift after let with an empty rhs
74 elseif l:lline =~# '\<let\>.*\s=$'
75 return l:ind + 4 + &shiftwidth
76
77 " Align 'in' with the parent let.
78 elseif l:line =~# '^\s*in\>'
79 return indent(search('^\s*let', 'bWn'))
80
81 " Align bindings with the parent let.
82 elseif l:lline =~# '\<let\>'
83 return l:ind + 4
84
85 " Align bindings with the parent in.
86 elseif l:lline =~# '^\s*in\>'
87 return l:ind
88
89 endif
90
91 " Add a 'shiftwidth' after lines ending with:
92 if l:lline =~# '\(|\|=\|->\|<-\|(\|\[\|{\|\<\(of\|else\|if\|then\)\)\s*$'
93 let l:ind = l:ind + &shiftwidth
94
95 " Add a 'shiftwidth' after lines starting with type ending with '=':
96 elseif l:lline =~# '^\s*type' && l:line =~# '^\s*='
97 let l:ind = l:ind + &shiftwidth
98
99 " Back to normal indent after comments:
100 elseif l:lline =~# '-}\s*$'
101 call search('-}', 'bW')
102 let l:ind = indent(searchpair('{-', '', '-}', 'bWn', 'synIDattr(synID(line("."), col("."), 0), "name") =~? "string"'))
103
104 " Ident some operators if there aren't any starting the last line.
105 elseif l:line =~# '^\s*\(!\|&\|(\|`\|+\||\|{\|[\|,\)=' && l:lline !~# '^\s*\(!\|&\|(\|`\|+\||\|{\|[\|,\)=' && l:lline !~# '^\s*$'
106 let l:ind = l:ind + &shiftwidth
107
108 elseif l:lline ==# '' && getline(l:lnum - 1) !=# ''
109 let l:ind = indent(search('^\s*\S+', 'bWn'))
110
111 endif
112
113 return l:ind
114 endfunc