comparison runtime/indent/matlab.vim @ 15194:8b334e4cb97f

Update runtime files. commit https://github.com/vim/vim/commit/9d87a37ee9d87f5bdbc779bc940d5f1e6f055d0a Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 18 21:41:50 2018 +0100 Update runtime files.
author Bram Moolenaar <Bram@vim.org>
date Tue, 18 Dec 2018 21:45:08 +0100
parents 63b0b7b79b25
children a0e0f0256d0b
comparison
equal deleted inserted replaced
15193:0154f020f97e 15194:8b334e4cb97f
1 " Matlab indent file 1 " Vim indent file
2 " Language: Matlab 2 " Language: MATLAB
3 " Maintainer: Christophe Poucet <christophe.poucet@pandora.be> 3 " Maintainer: Axel Forsman <axelsfor@gmail.com>
4 " Last Change: 6 January, 2001 4 " Previous maintainer: Christophe Poucet <christophe.poucet@pandora.be>
5 5
6 " Only load this indent file when no other was loaded. 6 " Only load if no other indent file is loaded
7 if exists("b:did_indent") 7 if exists('b:did_indent') | finish | endif
8 finish
9 endif
10 let b:did_indent = 1 8 let b:did_indent = 1
11 9
12 " Some preliminary setting 10 setlocal indentexpr=GetMatlabIndent()
13 setlocal indentkeys=!,o,O=end,=case,=else,=elseif,=otherwise,=catch 11 setlocal indentkeys=!,o,O,e,0=end,0=elseif,0=case,0=otherwise,0=catch,0=function,0=elsei
14 12
13 " The value of the Function indenting format in
14 " MATLAB Editor/Debugger Language Preferences.
15 " The possible values are 0 for Classic, 1 for Indent nested functions
16 " and 2 for Indent all functions (default).
17 let b:MATLAB_function_indent = get(g:, 'MATLAB_function_indent', 2)
18 " The previous value of b:changedtick
19 let b:MATLAB_lasttick = -1
20 " The previously indented line
21 let b:MATLAB_lastline = -1
22 " Whether the line above was a line continuation
23 let b:MATLAB_waslc = 0
24 let b:MATLAB_bracketlevel = 0
15 25
16 setlocal indentexpr=GetMatlabIndent(v:lnum) 26 " Only define the function once
27 if exists("*GetMatlabIndent") | finish | endif
17 28
18 " Only define the function once. 29 let s:keepcpo = &cpo
19 if exists("*GetMatlabIndent") 30 set cpo&vim
20 finish
21 endif
22 31
23 function GetMatlabIndent(lnum) 32 let s:end = '\<end\>\%([^(]*)\)\@!' " Array indexing heuristic
24 " Give up if this line is explicitly joined. 33 let s:open_pat = 'for\|if\|parfor\|spmd\|switch\|try\|while\|classdef\|properties\|methods\|events\|enumeration'
25 if getline(a:lnum - 1) =~ '\\$' 34 let s:dedent_pat = '\C^\s*\zs\<\%(end\|else\|elseif\|catch\|\(case\|otherwise\|function\)\)\>'
26 return -1 35 let s:start_pat = '\C\<\%(function\|' . s:open_pat . '\)\>'
27 endif 36 let s:bracket_pair_pat = '\(\[\|{\)\|\(\]\|}\)'
37 let s:zflag = has('patch-7.4.984') ? 'z' : ''
28 38
29 " Search backwards for the first non-empty line. 39 " Returns whether a comment or string envelops the specified column.
30 let plnum = a:lnum - 1 40 function! s:IsCommentOrString(lnum, col)
31 while plnum > 0 && getline(plnum) =~ '^\s*$' 41 return synIDattr(synID(a:lnum, a:col, 1), "name") =~# 'matlabComment\|matlabMultilineComment\|matlabString'
32 let plnum = plnum - 1
33 endwhile
34
35 if plnum == 0
36 " This is the first non-empty line, use zero indent.
37 return 0
38 endif
39
40 let curind = indent(plnum)
41
42 " If the current line is a stop-block statement...
43 if getline(v:lnum) =~ '^\s*\(end\|else\|elseif\|case\|otherwise\|catch\)\>'
44 " See if this line does not follow the line right after an openblock
45 if getline(plnum) =~ '^\s*\(for\|if\|else\|elseif\|case\|while\|switch\|try\|otherwise\|catch\)\>'
46 " See if the user has already dedented
47 elseif indent(v:lnum) > curind - shiftwidth()
48 " If not, recommend one dedent
49 let curind = curind - shiftwidth()
50 else
51 " Otherwise, trust the user
52 return -1
53 endif
54 " endif
55
56 " If the previous line opened a block
57 elseif getline(plnum) =~ '^\s*\(for\|if\|else\|elseif\|case\|while\|switch\|try\|otherwise\|catch\)\>'
58 " See if the user has already indented
59 if indent(v:lnum) < curind + shiftwidth()
60 "If not, recommend indent
61 let curind = curind + shiftwidth()
62 else
63 " Otherwise, trust the user
64 return -1
65 endif
66 endif
67
68
69
70 " If we got to here, it means that the user takes the standardversion, so we return it
71 return curind
72 endfunction 42 endfunction
73 43
74 " vim:sw=2 44 " Returns whether the specified line continues on the next line.
45 function! s:IsLineContinuation(lnum)
46 let l = getline(a:lnum) | let c = -3
47 while 1
48 let c = match(l, '\.\{3}', c + 3)
49 if c == -1 | return 0
50 elseif !s:IsCommentOrString(a:lnum, c) | return 1 | endif
51 endwhile
52 endfunction
53
54 function! s:SubmatchCount(lnum, pattern, ...)
55 let endcol = a:0 >= 1 ? a:1 : 1 / 0 | let x = [0, 0, 0, 0]
56 call cursor(a:lnum, 1)
57 while 1
58 let [lnum, c, submatch] = searchpos(a:pattern, 'cpe' . s:zflag, a:lnum)
59 if !submatch || c >= endcol | break | endif
60 if !s:IsCommentOrString(lnum, c) | let x[submatch - 2] += 1 | endif
61 if cursor(0, c + 1) == -1 || col('.') == c | break | endif
62 endwhile
63 return x
64 endfunction
65
66 function! s:GetOpenCloseCount(lnum, pattern, ...)
67 let counts = call('s:SubmatchCount', [a:lnum, a:pattern] + a:000)
68 return counts[0] - counts[1]
69 endfunction
70
71 function! GetMatlabIndent()
72 let prevlnum = prevnonblank(v:lnum - 1)
73
74 if b:MATLAB_lasttick != b:changedtick || b:MATLAB_lastline != prevlnum
75 " Recalculate bracket count (only have to check same block and line above)
76 let b:MATLAB_bracketlevel = 0
77 let previndent = indent(prevlnum) | let l = prevlnum
78 while 1
79 let l = prevnonblank(l - 1) | let indent = indent(l)
80 if l <= 0 || previndent < indent | break | endif
81 let b:MATLAB_bracketlevel += s:GetOpenCloseCount(l, s:bracket_pair_pat)
82 if previndent != indent | break | endif
83 endwhile
84
85 let b:MATLAB_waslc = s:IsLineContinuation(prevlnum - 1)
86 endif
87 " If line above was blank it can impossibly have been a LC
88 let above_lc = b:MATLAB_lasttick == b:changedtick && prevlnum != v:lnum - 1 && b:MATLAB_lastline == prevlnum ? 0 : s:IsLineContinuation(v:lnum - 1)
89
90 let pair_pat = '\C\<\(' . s:open_pat . '\|'
91 \ . (b:MATLAB_function_indent == 1 ? '^\@<!' : '')
92 \ . (b:MATLAB_function_indent >= 1 ? 'function\|' : '')
93 \ . '\|\%(^\s*\)\@<=\%(else\|elseif\|case\|otherwise\|catch\)\)\>'
94 \ . '\|\S\s*\zs\(' . s:end . '\)'
95 let [open, close, b_open, b_close] = prevlnum ? s:SubmatchCount(prevlnum,
96 \ pair_pat . '\|' . s:bracket_pair_pat) : [0, 0, 0, 0]
97 let curbracketlevel = b:MATLAB_bracketlevel + b_open - b_close
98
99 call cursor(v:lnum, 1)
100 let submatch = search(s:dedent_pat, 'cp' . s:zflag, v:lnum)
101 if submatch && !s:IsCommentOrString(v:lnum, col('.'))
102 " Align end, et cetera with start of block
103 let [lnum, col] = searchpairpos(s:start_pat, '', '\C' . s:end, 'bW', 's:IsCommentOrString(line("."), col("."))')
104 let result = lnum ? indent(lnum) + shiftwidth() * (s:GetOpenCloseCount(lnum, pair_pat, col) + submatch == 2) : 0
105 else
106 " Count how many blocks the previous line opens/closes
107 " Line continuations/brackets indent once per statement
108 let result = indent(prevlnum) + shiftwidth() * (open - close
109 \ + (b:MATLAB_bracketlevel ? -!curbracketlevel : !!curbracketlevel)
110 \ + (curbracketlevel <= 0) * (above_lc - b:MATLAB_waslc))
111 endif
112
113 let b:MATLAB_waslc = above_lc
114 let b:MATLAB_bracketlevel = curbracketlevel
115 let b:MATLAB_lasttick = b:changedtick
116 let b:MATLAB_lastline = v:lnum
117 return result
118 endfunction
119
120 let &cpo = s:keepcpo
121 unlet s:keepcpo