Mercurial > vim
annotate runtime/indent/tex.vim @ 10444:2edda415c28a v8.0.0116
commit https://github.com/vim/vim/commit/6dbf66aa3e2197ce41f2b1cc7602bb9c15840548
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Dec 1 21:32:32 2016 +0100
patch 8.0.0116
Problem: When reading English help and using CTRl-] the language from
'helplang' is used.
Solution: Make help tag jumps keep the language. (Tatsuki, test by Hirohito
Higashi, closes #1249)
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Thu, 01 Dec 2016 21:45:04 +0100 |
| parents | 1bf1b88968a2 |
| children | d183d629509e |
| rev | line source |
|---|---|
| 3224 | 1 " Vim indent file |
| 2 " Language: LaTeX | |
| 4437 | 3 " Maintainer: YiChao Zhou <broken.zhou AT gmail.com> |
| 3224 | 4 " Created: Sat, 16 Feb 2002 16:50:19 +0100 |
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5 " Version: 0.9.2 |
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6 " Please email me if you found something I can do. Comments, bug report and |
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7 " feature request are welcome. |
| 3445 | 8 |
| 9 " Last Update: {{{ | |
| 10 " 25th Sep 2002, by LH : | |
| 3224 | 11 " (*) better support for the option |
| 12 " (*) use some regex instead of several '||'. | |
| 13 " Oct 9th, 2003, by JT: | |
| 14 " (*) don't change indentation of lines starting with '%' | |
| 3445 | 15 " 2005/06/15, Moshe Kaminsky <kaminsky AT math.huji.ac.il> |
| 3224 | 16 " (*) New variables: |
| 17 " g:tex_items, g:tex_itemize_env, g:tex_noindent_env | |
| 3445 | 18 " 2011/3/6, by Zhou YiChao <broken.zhou AT gmail.com> |
| 3224 | 19 " (*) Don't change indentation of lines starting with '%' |
| 20 " I don't see any code with '%' and it doesn't work properly | |
| 21 " so I add some code. | |
| 22 " (*) New features: Add smartindent-like indent for "{}" and "[]". | |
| 23 " (*) New variables: g:tex_indent_brace | |
| 3445 | 24 " 2011/9/25, by Zhou Yichao <broken.zhou AT gmail.com> |
| 3224 | 25 " (*) Bug fix: smartindent-like indent for "[]" |
| 26 " (*) New features: Align with "&". | |
| 3445 | 27 " (*) New variable: g:tex_indent_and. |
| 28 " 2011/10/23 by Zhou Yichao <broken.zhou AT gmail.com> | |
| 3224 | 29 " (*) Bug fix: improve the smartindent-like indent for "{}" and |
| 30 " "[]". | |
| 3445 | 31 " 2012/02/27 by Zhou Yichao <broken.zhou AT gmail.com> |
| 32 " (*) Bug fix: support default folding marker. | |
| 33 " (*) Indent with "&" is not very handy. Make it not enable by | |
| 34 " default. | |
| 35 " 2012/03/06 by Zhou Yichao <broken.zhou AT gmail.com> | |
| 36 " (*) Modify "&" behavior and make it default again. Now "&" | |
| 37 " won't align when there are more then one "&" in the previous | |
| 38 " line. | |
| 39 " (*) Add indent "\left(" and "\right)" | |
| 40 " (*) Trust user when in "verbatim" and "lstlisting" | |
| 41 " 2012/03/11 by Zhou Yichao <broken.zhou AT gmail.com> | |
| 42 " (*) Modify "&" so that only indent when current line start with | |
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43 " "&". |
| 3445 | 44 " 2012/03/12 by Zhou Yichao <broken.zhou AT gmail.com> |
| 45 " (*) Modify indentkeys. | |
| 46 " 2012/03/18 by Zhou Yichao <broken.zhou AT gmail.com> | |
| 47 " (*) Add &cpo | |
| 4437 | 48 " 2013/05/02 by Zhou Yichao <broken.zhou AT gmail.com> |
| 49 " (*) Fix problem about GetTeXIndent checker. Thank Albert Netymk | |
| 50 " for reporting this. | |
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51 " 2014/06/23 by Zhou Yichao <broken.zhou AT gmail.com> |
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52 " (*) Remove the feature g:tex_indent_and because it is buggy. |
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53 " (*) If there is not any obvious indentation hints, we do not |
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54 " alert our user's current indentation. |
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55 " (*) g:tex_indent_brace now only works if the open brace is the |
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56 " last character of that line. |
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57 " 2014/08/03 by Zhou Yichao <broken.zhou AT gmail.com> |
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58 " (*) Indent current line if last line has larger indentation |
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59 " 2014/08/09 by Zhou Yichao <broken.zhou AT gmail.com> |
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60 " (*) Add missing return value for s:GetEndIndentation(...) |
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61 " |
| 3445 | 62 " }}} |
| 3224 | 63 |
| 3445 | 64 " Document: {{{ |
| 3224 | 65 " |
| 66 " To set the following options (ok, currently it's just one), add a line like | |
| 67 " let g:tex_indent_items = 1 | |
| 68 " to your ~/.vimrc. | |
| 69 " | |
| 70 " * g:tex_indent_brace | |
| 71 " | |
| 72 " If this variable is unset or non-zero, it will use smartindent-like style | |
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73 " for "{}" and "[]". Now this only works if the open brace is the last |
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74 " character of that line. |
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75 " |
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76 " % Example 1 |
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77 " \usetikzlibrary{ |
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78 " external |
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79 " } |
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80 " |
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81 " % Example 2 |
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82 " \tikzexternalize[ |
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83 " prefix=tikz] |
| 3445 | 84 " |
| 3224 | 85 " * g:tex_indent_items |
| 86 " | |
| 87 " If this variable is set, item-environments are indented like Emacs does | |
| 88 " it, i.e., continuation lines are indented with a shiftwidth. | |
| 3445 | 89 " |
| 3224 | 90 " NOTE: I've already set the variable below; delete the corresponding line |
| 91 " if you don't like this behaviour. | |
| 92 " | |
| 93 " Per default, it is unset. | |
| 3445 | 94 " |
| 3224 | 95 " set unset |
| 96 " ---------------------------------------------------------------- | |
| 3445 | 97 " \begin{itemize} \begin{itemize} |
| 3224 | 98 " \item blablabla \item blablabla |
| 3445 | 99 " bla bla bla bla bla bla |
| 3224 | 100 " \item blablabla \item blablabla |
| 3445 | 101 " bla bla bla bla bla bla |
| 102 " \end{itemize} \end{itemize} | |
| 3224 | 103 " |
| 104 " | |
| 105 " * g:tex_items | |
| 106 " | |
| 3445 | 107 " A list of tokens to be considered as commands for the beginning of an item |
| 108 " command. The tokens should be separated with '\|'. The initial '\' should | |
| 3224 | 109 " be escaped. The default is '\\bibitem\|\\item'. |
| 110 " | |
| 111 " * g:tex_itemize_env | |
| 3445 | 112 " |
| 113 " A list of environment names, separated with '\|', where the items (item | |
| 114 " commands matching g:tex_items) may appear. The default is | |
| 3224 | 115 " 'itemize\|description\|enumerate\|thebibliography'. |
| 116 " | |
| 117 " * g:tex_noindent_env | |
| 118 " | |
| 3445 | 119 " A list of environment names. separated with '\|', where no indentation is |
| 3224 | 120 " required. The default is 'document\|verbatim'. |
| 3445 | 121 " }}} |
| 122 | |
| 123 " Only define the function once | |
| 3224 | 124 if exists("b:did_indent") |
| 125 finish | |
| 126 endif | |
| 3445 | 127 |
| 128 let s:cpo_save = &cpo | |
| 129 set cpo&vim | |
| 130 | |
| 131 " Define global variable {{{ | |
| 132 | |
| 3224 | 133 let b:did_indent = 1 |
| 134 | |
| 135 if !exists("g:tex_indent_items") | |
| 136 let g:tex_indent_items = 1 | |
| 137 endif | |
| 138 if !exists("g:tex_indent_brace") | |
| 139 let g:tex_indent_brace = 1 | |
| 140 endif | |
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141 if !exists("g:tex_max_scan_line") |
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142 let g:tex_max_scan_line = 60 |
| 3224 | 143 endif |
| 144 if g:tex_indent_items | |
| 145 if !exists("g:tex_itemize_env") | |
| 146 let g:tex_itemize_env = 'itemize\|description\|enumerate\|thebibliography' | |
| 147 endif | |
| 148 if !exists('g:tex_items') | |
| 3445 | 149 let g:tex_items = '\\bibitem\|\\item' |
| 3224 | 150 endif |
| 151 else | |
| 152 let g:tex_items = '' | |
| 153 endif | |
| 154 | |
| 155 if !exists("g:tex_noindent_env") | |
| 156 let g:tex_noindent_env = 'document\|verbatim\|lstlisting' | |
| 3445 | 157 endif "}}} |
| 3224 | 158 |
| 3445 | 159 " VIM Setting " {{{ |
| 3224 | 160 setlocal autoindent |
| 161 setlocal nosmartindent | |
| 162 setlocal indentexpr=GetTeXIndent() | |
| 3445 | 163 setlocal indentkeys& |
| 164 exec 'setlocal indentkeys+=[,(,{,),},],\&' . substitute(g:tex_items, '^\|\(\\|\)', ',=', 'g') | |
| 165 let g:tex_items = '^\s*' . substitute(g:tex_items, '^\(\^\\s\*\)*', '', '') | |
| 166 " }}} | |
| 3224 | 167 |
| 4437 | 168 function! GetTeXIndent() " {{{ |
| 3224 | 169 " Find a non-blank line above the current line. |
| 170 let lnum = prevnonblank(v:lnum - 1) | |
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171 let cnum = v:lnum |
| 3224 | 172 |
| 173 " Comment line is not what we need. | |
| 174 while lnum != 0 && getline(lnum) =~ '^\s*%' | |
| 175 let lnum = prevnonblank(lnum - 1) | |
| 176 endwhile | |
| 177 | |
| 178 " At the start of the file use zero indent. | |
| 179 if lnum == 0 | |
| 3445 | 180 return 0 |
| 3224 | 181 endif |
| 182 | |
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183 let line = substitute(getline(lnum), '\s*%.*', '','g') " last line |
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184 let cline = substitute(getline(v:lnum), '\s*%.*', '', 'g') " current line |
| 3224 | 185 |
| 3445 | 186 " We are in verbatim, so do what our user what. |
| 187 if synIDattr(synID(v:lnum, indent(v:lnum), 1), "name") == "texZone" | |
| 188 if empty(cline) | |
| 189 return indent(lnum) | |
| 190 else | |
| 191 return indent(v:lnum) | |
| 192 end | |
| 193 endif | |
| 194 | |
| 3224 | 195 if lnum == 0 |
| 3445 | 196 return 0 |
| 3224 | 197 endif |
| 198 | |
| 199 let ind = indent(lnum) | |
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200 let stay = 1 |
| 3224 | 201 |
| 202 " New code for comment: retain the indent of current line | |
| 203 if cline =~ '^\s*%' | |
| 204 return indent(v:lnum) | |
| 205 endif | |
| 206 | |
| 207 " Add a 'shiftwidth' after beginning of environments. | |
| 208 " Don't add it for \begin{document} and \begin{verbatim} | |
| 3445 | 209 ""if line =~ '^\s*\\begin{\(.*\)}' && line !~ 'verbatim' |
| 3224 | 210 " LH modification : \begin does not always start a line |
| 211 " ZYC modification : \end after \begin won't cause wrong indent anymore | |
| 212 if line =~ '\\begin{.*}' && line !~ g:tex_noindent_env | |
| 213 let ind = ind + &sw | |
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214 let stay = 0 |
| 3224 | 215 |
| 216 if g:tex_indent_items | |
| 217 " Add another sw for item-environments | |
| 218 if line =~ g:tex_itemize_env | |
| 219 let ind = ind + &sw | |
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220 let stay = 0 |
| 3224 | 221 endif |
| 222 endif | |
| 223 endif | |
| 224 | |
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225 if cline =~ '\\end{.*}' |
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226 let retn = s:GetEndIndentation(v:lnum) |
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227 if retn != -1 |
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228 return retn |
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229 endif |
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230 end |
| 3224 | 231 " Subtract a 'shiftwidth' when an environment ends |
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232 if cline =~ '\\end{.*}' |
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233 \ && cline !~ g:tex_noindent_env |
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234 \ && cline !~ '\\begin{.*}.*\\end{.*}' |
| 3224 | 235 if g:tex_indent_items |
| 236 " Remove another sw for item-environments | |
| 237 if cline =~ g:tex_itemize_env | |
| 238 let ind = ind - &sw | |
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239 let stay = 0 |
| 3224 | 240 endif |
| 241 endif | |
| 242 | |
| 243 let ind = ind - &sw | |
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244 let stay = 0 |
| 3224 | 245 endif |
| 246 | |
| 247 if g:tex_indent_brace | |
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248 let char = line[strlen(line)-1] |
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249 if char == '[' || char == '{' |
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250 let ind += &sw |
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251 let stay = 0 |
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252 endif |
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253 |
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254 let cind = indent(v:lnum) |
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255 let char = cline[cind] |
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256 if (char == ']' || char == '}') && |
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257 \ s:CheckPairedIsLastCharacter(v:lnum, cind) |
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258 let ind -= &sw |
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259 let stay = 0 |
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260 endif |
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261 |
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262 for i in range(indent(lnum)+1, strlen(line)-1) |
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263 let char = line[i] |
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264 if char == ']' || char == '}' |
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265 if s:CheckPairedIsLastCharacter(lnum, i) |
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266 let ind -= &sw |
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267 let stay = 0 |
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268 endif |
| 3224 | 269 endif |
| 270 endfor | |
| 3445 | 271 endif |
| 3224 | 272 |
| 273 " Special treatment for 'item' | |
| 274 " ---------------------------- | |
| 275 | |
| 276 if g:tex_indent_items | |
| 277 " '\item' or '\bibitem' itself: | |
| 278 if cline =~ g:tex_items | |
| 279 let ind = ind - &sw | |
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280 let stay = 0 |
| 3224 | 281 endif |
| 282 " lines following to '\item' are intented once again: | |
| 283 if line =~ g:tex_items | |
| 284 let ind = ind + &sw | |
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285 let stay = 0 |
| 3224 | 286 endif |
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287 endif |
| 3224 | 288 |
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289 if stay |
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290 " If there is no obvious indentation hint, we trust our user. |
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291 if empty(cline) |
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292 return ind |
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293 else |
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294 return max([indent(v:lnum), s:GetLastBeginIndentation(v:lnum)]) |
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295 endif |
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296 else |
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297 return ind |
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298 endif |
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299 endfunction "}}} |
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300 |
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301 function! s:GetLastBeginIndentation(lnum) " {{{ |
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302 let matchend = 1 |
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303 for lnum in range(a:lnum-1, max([a:lnum - g:tex_max_scan_line, 1]), -1) |
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304 let line = getline(lnum) |
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305 if line =~ '\\end{.*}' |
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306 let matchend += 1 |
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307 endif |
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308 if line =~ '\\begin{.*}' |
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309 let matchend -= 1 |
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310 endif |
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311 if matchend == 0 |
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312 if line =~ g:tex_itemize_env |
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313 return indent(lnum) + 2 * &sw |
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314 endif |
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315 if line =~ g:tex_noindent_env |
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316 return indent(lnum) |
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317 endif |
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318 return indent(lnum) + &sw |
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319 endif |
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320 endfor |
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321 return -1 |
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322 endfunction |
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323 |
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324 function! s:GetEndIndentation(lnum) " {{{ |
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325 if getline(a:lnum) =~ '\\begin{.*}.*\\end{.*}' |
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326 return -1 |
| 3224 | 327 endif |
| 328 | |
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329 let min_indent = 100 |
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330 let matchend = 1 |
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331 for lnum in range(a:lnum-1, max([a:lnum-g:tex_max_scan_line, 1]), -1) |
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332 let line = getline(lnum) |
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333 if line =~ '\\end{.*}' |
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334 let matchend += 1 |
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335 endif |
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336 if line =~ '\\begin{.*}' |
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337 let matchend -= 1 |
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338 endif |
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339 if matchend == 0 |
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340 return indent(lnum) |
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341 endif |
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342 if !empty(line) |
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343 let min_indent = min([min_indent, indent(lnum)]) |
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344 endif |
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345 endfor |
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346 return min_indent - &sw |
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347 endfunction |
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348 |
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349 " Most of the code is from matchparen.vim |
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350 function! s:CheckPairedIsLastCharacter(lnum, col) "{{{ |
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351 " Get the character under the cursor and check if it's in 'matchpairs'. |
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352 let c_lnum = a:lnum |
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353 let c_col = a:col+1 |
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354 |
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355 |
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356 let c = getline(c_lnum)[c_col-1] |
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357 let plist = split(&matchpairs, '.\zs[:,]') |
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358 let i = index(plist, c) |
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359 if i < 0 |
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360 return 0 |
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361 endif |
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362 |
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363 " Figure out the arguments for searchpairpos(). |
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364 if i % 2 == 0 |
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365 let s_flags = 'nW' |
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366 let c2 = plist[i + 1] |
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367 else |
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368 let s_flags = 'nbW' |
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369 let c2 = c |
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370 let c = plist[i - 1] |
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371 endif |
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372 if c == '[' |
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373 let c = '\[' |
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374 let c2 = '\]' |
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375 endif |
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376 |
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377 " Find the match. When it was just before the cursor move it there for a |
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378 " moment. |
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379 let save_cursor = winsaveview() |
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380 call cursor(c_lnum, c_col) |
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381 |
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382 " When not in a string or comment ignore matches inside them. |
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383 " We match "escape" for special items, such as lispEscapeSpecial. |
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384 let s_skip ='synIDattr(synID(line("."), col("."), 0), "name") ' . |
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385 \ '=~? "string\\|character\\|singlequote\\|escape\\|comment"' |
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386 execute 'if' s_skip '| let s_skip = 0 | endif' |
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387 |
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388 let stopline = max([0, c_lnum - g:tex_max_scan_line]) |
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389 |
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390 " Limit the search time to 300 msec to avoid a hang on very long lines. |
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391 " This fails when a timeout is not supported. |
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392 try |
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393 let [m_lnum, m_col] = searchpairpos(c, '', c2, s_flags, s_skip, stopline, 100) |
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394 catch /E118/ |
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395 endtry |
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396 |
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397 call winrestview(save_cursor) |
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398 |
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399 if m_lnum > 0 |
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400 let line = getline(m_lnum) |
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401 return strlen(line) == m_col |
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402 endif |
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403 |
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404 return 0 |
| 3445 | 405 endfunction "}}} |
| 3224 | 406 |
| 3237 | 407 let &cpo = s:cpo_save |
| 408 unlet s:cpo_save | |
| 409 | |
| 3224 | 410 " vim: set sw=4 textwidth=80: |