Mercurial > vim
annotate runtime/indent/clojure.vim @ 33152:8c9c79b00316 v9.0.1858
patch 9.0.1858: [security] heap use after free in ins_compl_get_exp()
Commit: https://github.com/vim/vim/commit/ee9166eb3b41846661a39b662dc7ebe8b5e15139
Author: Christian Brabandt <cb@256bit.org>
Date: Sun Sep 3 21:24:33 2023 +0200
patch 9.0.1858: [security] heap use after free in ins_compl_get_exp()
Problem: heap use after free in ins_compl_get_exp()
Solution: validate buffer before accessing it
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
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date | Sun, 03 Sep 2023 21:30:02 +0200 |
parents | e3d6184b89fa |
children |
rev | line source |
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4098 | 1 " Vim indent file |
23931 | 2 " Language: Clojure |
26100 | 3 " Maintainer: Alex Vear <alex@vear.uk> |
23931 | 4 " Former Maintainers: Sung Pae <self@sungpae.com> |
5 " Meikel Brandmeyer <mb@kotka.de> | |
6 " URL: https://github.com/clojure-vim/clojure.vim | |
7 " License: Vim (see :h license) | |
28246 | 8 " Last Change: 2022-03-24 |
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9 |
4098 | 10 if exists("b:did_indent") |
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11 finish |
4098 | 12 endif |
13 let b:did_indent = 1 | |
14 | |
15 let s:save_cpo = &cpo | |
16 set cpo&vim | |
17 | |
5734 | 18 let b:undo_indent = 'setlocal autoindent< smartindent< expandtab< softtabstop< shiftwidth< indentexpr< indentkeys<' |
4098 | 19 |
20 setlocal noautoindent nosmartindent | |
21 setlocal softtabstop=2 shiftwidth=2 expandtab | |
22 setlocal indentkeys=!,o,O | |
23 | |
24 if exists("*searchpairpos") | |
25 | |
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26 if !exists('g:clojure_maxlines') |
26100 | 27 let g:clojure_maxlines = 300 |
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28 endif |
4098 | 29 |
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30 if !exists('g:clojure_fuzzy_indent') |
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31 let g:clojure_fuzzy_indent = 1 |
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32 endif |
4098 | 33 |
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34 if !exists('g:clojure_fuzzy_indent_patterns') |
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35 let g:clojure_fuzzy_indent_patterns = ['^with', '^def', '^let'] |
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36 endif |
4098 | 37 |
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38 if !exists('g:clojure_fuzzy_indent_blacklist') |
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39 let g:clojure_fuzzy_indent_blacklist = ['-fn$', '\v^with-%(meta|out-str|loading-context)$'] |
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40 endif |
4098 | 41 |
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42 if !exists('g:clojure_special_indent_words') |
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43 let g:clojure_special_indent_words = 'deftype,defrecord,reify,proxy,extend-type,extend-protocol,letfn' |
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44 endif |
4098 | 45 |
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46 if !exists('g:clojure_align_multiline_strings') |
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47 let g:clojure_align_multiline_strings = 0 |
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48 endif |
4098 | 49 |
5577 | 50 if !exists('g:clojure_align_subforms') |
51 let g:clojure_align_subforms = 0 | |
52 endif | |
53 | |
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54 function! s:syn_id_name() |
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55 return synIDattr(synID(line("."), col("."), 0), "name") |
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56 endfunction |
4098 | 57 |
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58 function! s:ignored_region() |
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59 return s:syn_id_name() =~? '\vstring|regex|comment|character' |
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60 endfunction |
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61 |
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62 function! s:current_char() |
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63 return getline('.')[col('.')-1] |
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64 endfunction |
4098 | 65 |
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66 function! s:current_word() |
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67 return getline('.')[col('.')-1 : searchpos('\v>', 'n', line('.'))[1]-2] |
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68 endfunction |
4098 | 69 |
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70 function! s:is_paren() |
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71 return s:current_char() =~# '\v[\(\)\[\]\{\}]' && !s:ignored_region() |
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72 endfunction |
4098 | 73 |
26100 | 74 " Returns 1 if string matches a pattern in 'patterns', which should be |
75 " a list of patterns. | |
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76 function! s:match_one(patterns, string) |
26100 | 77 for pat in a:patterns |
5763 | 78 if a:string =~# pat | return 1 | endif |
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79 endfor |
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80 endfunction |
4098 | 81 |
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82 function! s:match_pairs(open, close, stopat) |
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83 " Stop only on vector and map [ resp. {. Ignore the ones in strings and |
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84 " comments. |
23931 | 85 if a:stopat == 0 && g:clojure_maxlines > 0 |
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86 let stopat = max([line(".") - g:clojure_maxlines, 0]) |
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87 else |
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88 let stopat = a:stopat |
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89 endif |
4098 | 90 |
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91 let pos = searchpairpos(a:open, '', a:close, 'bWn', "!s:is_paren()", stopat) |
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92 return [pos[0], col(pos)] |
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93 endfunction |
4098 | 94 |
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95 function! s:clojure_check_for_string_worker() |
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96 " Check whether there is the last character of the previous line is |
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97 " highlighted as a string. If so, we check whether it's a ". In this |
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98 " case we have to check also the previous character. The " might be the |
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99 " closing one. In case the we are still in the string, we search for the |
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100 " opening ". If this is not found we take the indent of the line. |
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101 let nb = prevnonblank(v:lnum - 1) |
4098 | 102 |
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103 if nb == 0 |
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104 return -1 |
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105 endif |
4098 | 106 |
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107 call cursor(nb, 0) |
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108 call cursor(0, col("$") - 1) |
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109 if s:syn_id_name() !~? "string" |
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110 return -1 |
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111 endif |
4098 | 112 |
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113 " This will not work for a " in the first column... |
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114 if s:current_char() == '"' |
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115 call cursor(0, col("$") - 2) |
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116 if s:syn_id_name() !~? "string" |
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117 return -1 |
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118 endif |
23931 | 119 if s:current_char() != '\' |
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120 return -1 |
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121 endif |
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122 call cursor(0, col("$") - 1) |
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123 endif |
4098 | 124 |
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125 let p = searchpos('\(^\|[^\\]\)\zs"', 'bW') |
4098 | 126 |
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127 if p != [0, 0] |
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128 return p[1] - 1 |
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129 endif |
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130 |
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131 return indent(".") |
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132 endfunction |
4098 | 133 |
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134 function! s:check_for_string() |
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135 let pos = getpos('.') |
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136 try |
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137 let val = s:clojure_check_for_string_worker() |
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138 finally |
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139 call setpos('.', pos) |
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140 endtry |
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141 return val |
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142 endfunction |
4098 | 143 |
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144 function! s:strip_namespace_and_macro_chars(word) |
5763 | 145 return substitute(a:word, "\\v%(.*/|[#'`~@^,]*)(.*)", '\1', '') |
146 endfunction | |
147 | |
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148 function! s:clojure_is_method_special_case_worker(position) |
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149 " Find the next enclosing form. |
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150 call search('\S', 'Wb') |
4098 | 151 |
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152 " Special case: we are at a '(('. |
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153 if s:current_char() == '(' |
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154 return 0 |
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155 endif |
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156 call cursor(a:position) |
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157 |
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158 let next_paren = s:match_pairs('(', ')', 0) |
4098 | 159 |
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160 " Special case: we are now at toplevel. |
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161 if next_paren == [0, 0] |
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162 return 0 |
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163 endif |
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164 call cursor(next_paren) |
4098 | 165 |
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166 call search('\S', 'W') |
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167 let w = s:strip_namespace_and_macro_chars(s:current_word()) |
23931 | 168 |
5763 | 169 if g:clojure_special_indent_words =~# '\V\<' . w . '\>' |
23931 | 170 |
171 " `letfn` is a special-special-case. | |
172 if w ==# 'letfn' | |
173 " Earlier code left the cursor at: | |
174 " (letfn [...] ...) | |
175 " ^ | |
176 | |
177 " Search and get coordinates of first `[` | |
178 " (letfn [...] ...) | |
179 " ^ | |
180 call search('\[', 'W') | |
181 let pos = getcurpos() | |
182 let letfn_bracket = [pos[1], pos[2]] | |
183 | |
184 " Move cursor to start of the form this function was | |
185 " initially called on. Grab the coordinates of the | |
186 " closest outer `[`. | |
187 call cursor(a:position) | |
188 let outer_bracket = s:match_pairs('\[', '\]', 0) | |
189 | |
190 " If the located square brackets are not the same, | |
191 " don't use special-case formatting. | |
192 if outer_bracket != letfn_bracket | |
193 return 0 | |
194 endif | |
195 endif | |
196 | |
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197 return 1 |
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198 endif |
4098 | 199 |
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200 return 0 |
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201 endfunction |
4098 | 202 |
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203 function! s:is_method_special_case(position) |
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204 let pos = getpos('.') |
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205 try |
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206 let val = s:clojure_is_method_special_case_worker(a:position) |
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207 finally |
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208 call setpos('.', pos) |
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209 endtry |
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210 return val |
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211 endfunction |
4098 | 212 |
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213 " Check if form is a reader conditional, that is, it is prefixed by #? |
26100 | 214 " or #?@ |
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215 function! s:is_reader_conditional_special_case(position) |
23931 | 216 return getline(a:position[0])[a:position[1] - 3 : a:position[1] - 2] == "#?" |
26100 | 217 \|| getline(a:position[0])[a:position[1] - 4 : a:position[1] - 2] == "#?@" |
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218 endfunction |
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219 |
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220 " Returns 1 for opening brackets, -1 for _anything else_. |
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221 function! s:bracket_type(char) |
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222 return stridx('([{', a:char) > -1 ? 1 : -1 |
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223 endfunction |
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224 |
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225 " Returns: [opening-bracket-lnum, indent] |
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226 function! s:clojure_indent_pos() |
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227 " Get rid of special case. |
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228 if line(".") == 1 |
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229 return [0, 0] |
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230 endif |
4098 | 231 |
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232 " We have to apply some heuristics here to figure out, whether to use |
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233 " normal lisp indenting or not. |
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234 let i = s:check_for_string() |
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235 if i > -1 |
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236 return [0, i + !!g:clojure_align_multiline_strings] |
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237 endif |
4098 | 238 |
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239 call cursor(0, 1) |
4098 | 240 |
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241 " Find the next enclosing [ or {. We can limit the second search |
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242 " to the line, where the [ was found. If no [ was there this is |
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243 " zero and we search for an enclosing {. |
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244 let paren = s:match_pairs('(', ')', 0) |
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245 let bracket = s:match_pairs('\[', '\]', paren[0]) |
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246 let curly = s:match_pairs('{', '}', bracket[0]) |
4098 | 247 |
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248 " In case the curly brace is on a line later then the [ or - in |
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249 " case they are on the same line - in a higher column, we take the |
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250 " curly indent. |
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251 if curly[0] > bracket[0] || curly[1] > bracket[1] |
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252 if curly[0] > paren[0] || curly[1] > paren[1] |
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253 return curly |
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254 endif |
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255 endif |
4098 | 256 |
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257 " If the curly was not chosen, we take the bracket indent - if |
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258 " there was one. |
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259 if bracket[0] > paren[0] || bracket[1] > paren[1] |
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260 return bracket |
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261 endif |
4098 | 262 |
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263 " There are neither { nor [ nor (, ie. we are at the toplevel. |
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264 if paren == [0, 0] |
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265 return paren |
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266 endif |
4098 | 267 |
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268 " Now we have to reimplement lispindent. This is surprisingly easy, as |
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269 " soon as one has access to syntax items. |
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270 " |
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271 " - Check whether we are in a special position after a word in |
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272 " g:clojure_special_indent_words. These are special cases. |
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273 " - Get the next keyword after the (. |
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274 " - If its first character is also a (, we have another sexp and align |
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275 " one column to the right of the unmatched (. |
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276 " - In case it is in lispwords, we indent the next line to the column of |
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277 " the ( + sw. |
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278 " - If not, we check whether it is last word in the line. In that case |
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279 " we again use ( + sw for indent. |
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280 " - In any other case we use the column of the end of the word + 2. |
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281 call cursor(paren) |
4098 | 282 |
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283 if s:is_method_special_case(paren) |
23931 | 284 return [paren[0], paren[1] + &shiftwidth - 1] |
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285 endif |
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286 |
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287 if s:is_reader_conditional_special_case(paren) |
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288 return paren |
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289 endif |
4098 | 290 |
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291 " In case we are at the last character, we use the paren position. |
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292 if col("$") - 1 == paren[1] |
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293 return paren |
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294 endif |
4098 | 295 |
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296 " In case after the paren is a whitespace, we search for the next word. |
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297 call cursor(0, col('.') + 1) |
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298 if s:current_char() == ' ' |
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299 call search('\v\S', 'W') |
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300 endif |
4098 | 301 |
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302 " If we moved to another line, there is no word after the (. We |
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303 " use the ( position for indent. |
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304 if line(".") > paren[0] |
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305 return paren |
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306 endif |
4098 | 307 |
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308 " We still have to check, whether the keyword starts with a (, [ or {. |
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309 " In that case we use the ( position for indent. |
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310 let w = s:current_word() |
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311 if s:bracket_type(w[0]) == 1 |
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312 return paren |
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313 endif |
4098 | 314 |
23931 | 315 " If the keyword begins with #, check if it is an anonymous |
316 " function or set, in which case we indent by the shiftwidth | |
317 " (minus one if g:clojure_align_subforms = 1), or if it is | |
318 " ignored, in which case we use the ( position for indent. | |
319 if w[0] == "#" | |
320 " TODO: Handle #=() and other rare reader invocations? | |
321 if w[1] == '(' || w[1] == '{' | |
322 return [paren[0], paren[1] + (g:clojure_align_subforms ? 0 : &shiftwidth - 1)] | |
323 elseif w[1] == '_' | |
324 return paren | |
325 endif | |
326 endif | |
327 | |
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328 " Test words without namespace qualifiers and leading reader macro |
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329 " metacharacters. |
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330 " |
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331 " e.g. clojure.core/defn and #'defn should both indent like defn. |
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332 let ww = s:strip_namespace_and_macro_chars(w) |
4098 | 333 |
5763 | 334 if &lispwords =~# '\V\<' . ww . '\>' |
23931 | 335 return [paren[0], paren[1] + &shiftwidth - 1] |
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336 endif |
4098 | 337 |
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338 if g:clojure_fuzzy_indent |
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339 \ && !s:match_one(g:clojure_fuzzy_indent_blacklist, ww) |
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340 \ && s:match_one(g:clojure_fuzzy_indent_patterns, ww) |
23931 | 341 return [paren[0], paren[1] + &shiftwidth - 1] |
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342 endif |
4098 | 343 |
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344 call search('\v\_s', 'cW') |
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345 call search('\v\S', 'W') |
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346 if paren[0] < line(".") |
23931 | 347 return [paren[0], paren[1] + (g:clojure_align_subforms ? 0 : &shiftwidth - 1)] |
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348 endif |
4098 | 349 |
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350 call search('\v\S', 'bW') |
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351 return [line('.'), col('.') + 1] |
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352 endfunction |
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353 |
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354 function! GetClojureIndent() |
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355 let lnum = line('.') |
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356 let orig_lnum = lnum |
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357 let orig_col = col('.') |
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358 let [opening_lnum, indent] = s:clojure_indent_pos() |
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359 |
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360 " Account for multibyte characters |
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361 if opening_lnum > 0 |
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362 let indent -= indent - virtcol([opening_lnum, indent]) |
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363 endif |
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364 |
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365 " Return if there are no previous lines to inherit from |
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366 if opening_lnum < 1 || opening_lnum >= lnum - 1 |
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367 call cursor(orig_lnum, orig_col) |
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368 return indent |
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369 endif |
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370 |
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371 let bracket_count = 0 |
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372 |
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373 " Take the indent of the first previous non-white line that is |
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374 " at the same sexp level. cf. src/misc1.c:get_lisp_indent() |
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375 while 1 |
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376 let lnum = prevnonblank(lnum - 1) |
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377 let col = 1 |
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378 |
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379 if lnum <= opening_lnum |
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380 break |
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381 endif |
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382 |
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383 call cursor(lnum, col) |
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384 |
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385 " Handle bracket counting edge case |
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386 if s:is_paren() |
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387 let bracket_count += s:bracket_type(s:current_char()) |
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388 endif |
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389 |
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390 while 1 |
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391 if search('\v[(\[{}\])]', '', lnum) < 1 |
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392 break |
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393 elseif !s:ignored_region() |
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394 let bracket_count += s:bracket_type(s:current_char()) |
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395 endif |
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396 endwhile |
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397 |
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398 if bracket_count == 0 |
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399 " Check if this is part of a multiline string |
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400 call cursor(lnum, 1) |
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401 if s:syn_id_name() !~? '\vstring|regex' |
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402 call cursor(orig_lnum, orig_col) |
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403 return indent(lnum) |
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404 endif |
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405 endif |
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406 endwhile |
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407 |
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408 call cursor(orig_lnum, orig_col) |
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commit https://github.com/vim/vim/commit/6f1d9a096bf22d50c727dca73abbfb8e3ff55176
Christian Brabandt <cb@256bit.org>
parents:
5763
diff
changeset
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409 return indent |
5362
ab1508486b12
Update runtime files. Add support for J.
Bram Moolenaar <bram@vim.org>
parents:
4098
diff
changeset
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410 endfunction |
4098 | 411 |
5362
ab1508486b12
Update runtime files. Add support for J.
Bram Moolenaar <bram@vim.org>
parents:
4098
diff
changeset
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412 setlocal indentexpr=GetClojureIndent() |
4098 | 413 |
414 else | |
415 | |
5362
ab1508486b12
Update runtime files. Add support for J.
Bram Moolenaar <bram@vim.org>
parents:
4098
diff
changeset
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416 " In case we have searchpairpos not available we fall back to |
ab1508486b12
Update runtime files. Add support for J.
Bram Moolenaar <bram@vim.org>
parents:
4098
diff
changeset
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417 " normal lisp indenting. |
ab1508486b12
Update runtime files. Add support for J.
Bram Moolenaar <bram@vim.org>
parents:
4098
diff
changeset
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418 setlocal indentexpr= |
ab1508486b12
Update runtime files. Add support for J.
Bram Moolenaar <bram@vim.org>
parents:
4098
diff
changeset
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419 setlocal lisp |
ab1508486b12
Update runtime files. Add support for J.
Bram Moolenaar <bram@vim.org>
parents:
4098
diff
changeset
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420 let b:undo_indent .= '| setlocal lisp<' |
4098 | 421 |
422 endif | |
423 | |
424 let &cpo = s:save_cpo | |
425 unlet! s:save_cpo | |
426 | |
5362
ab1508486b12
Update runtime files. Add support for J.
Bram Moolenaar <bram@vim.org>
parents:
4098
diff
changeset
|
427 " vim:sts=8:sw=8:ts=8:noet |