Mercurial > vim
comparison runtime/indent/tex.vim @ 3224:8b8ef1fed009
Update runtime files.
author | Bram Moolenaar <bram@vim.org> |
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date | Wed, 14 Dec 2011 21:17:39 +0100 |
parents | |
children | 91e53bcb7946 |
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3223:576648218cb5 | 3224:8b8ef1fed009 |
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1 " Vim indent file | |
2 " Language: LaTeX | |
3 " Maintainer: Zhou YiChao <broken.zhou@gmail.com> | |
4 " Created: Sat, 16 Feb 2002 16:50:19 +0100 | |
5 " Last Change: Tue, 25 Sep 2011 | |
6 " Last Update: 25th Sep 2002, by LH : | |
7 " (*) better support for the option | |
8 " (*) use some regex instead of several '||'. | |
9 " Oct 9th, 2003, by JT: | |
10 " (*) don't change indentation of lines starting with '%' | |
11 " 2005/06/15, Moshe Kaminsky <kaminsky@math.huji.ac.il> | |
12 " (*) New variables: | |
13 " g:tex_items, g:tex_itemize_env, g:tex_noindent_env | |
14 " 2011/3/6, by Zhou YiChao <broken.zhou@gmail.com> | |
15 " (*) Don't change indentation of lines starting with '%' | |
16 " I don't see any code with '%' and it doesn't work properly | |
17 " so I add some code. | |
18 " (*) New features: Add smartindent-like indent for "{}" and "[]". | |
19 " (*) New variables: g:tex_indent_brace | |
20 " 2011/9/25, by Zhou Yichao <broken.zhou@gmail.com> | |
21 " (*) Bug fix: smartindent-like indent for "[]" | |
22 " (*) New features: Align with "&". | |
23 " (*) New variable: g:tex_indent_and | |
24 " 2011/10/23 by Zhou Yichao <broken.zhou@gmail.com> | |
25 " (*) Bug fix: improve the smartindent-like indent for "{}" and | |
26 " "[]". | |
27 " | |
28 " Version: 0.62 | |
29 | |
30 " Options: {{{ | |
31 " | |
32 " To set the following options (ok, currently it's just one), add a line like | |
33 " let g:tex_indent_items = 1 | |
34 " to your ~/.vimrc. | |
35 " | |
36 " * g:tex_indent_brace | |
37 " | |
38 " If this variable is unset or non-zero, it will use smartindent-like style | |
39 " for "{}" and "[]" | |
40 " | |
41 " * g:tex_indent_items | |
42 " | |
43 " If this variable is set, item-environments are indented like Emacs does | |
44 " it, i.e., continuation lines are indented with a shiftwidth. | |
45 " | |
46 " NOTE: I've already set the variable below; delete the corresponding line | |
47 " if you don't like this behaviour. | |
48 " | |
49 " Per default, it is unset. | |
50 " | |
51 " set unset | |
52 " ---------------------------------------------------------------- | |
53 " \begin{itemize} \begin{itemize} | |
54 " \item blablabla \item blablabla | |
55 " bla bla bla bla bla bla | |
56 " \item blablabla \item blablabla | |
57 " bla bla bla bla bla bla | |
58 " \end{itemize} \end{itemize} | |
59 " | |
60 " | |
61 " * g:tex_items | |
62 " | |
63 " A list of tokens to be considered as commands for the beginning of an item | |
64 " command. The tokens should be separated with '\|'. The initial '\' should | |
65 " be escaped. The default is '\\bibitem\|\\item'. | |
66 " | |
67 " * g:tex_itemize_env | |
68 " | |
69 " A list of environment names, separated with '\|', where the items (item | |
70 " commands matching g:tex_items) may appear. The default is | |
71 " 'itemize\|description\|enumerate\|thebibliography'. | |
72 " | |
73 " * g:tex_noindent_env | |
74 " | |
75 " A list of environment names. separated with '\|', where no indentation is | |
76 " required. The default is 'document\|verbatim'. | |
77 " | |
78 " * g:tex_indent_and | |
79 " | |
80 " If this variable is unset or zero, vim will try to align the line with first | |
81 " "&". This is pretty useful when you use environment like table or align. | |
82 " Note that this feature need to search back some line, so vim may become | |
83 " a little slow. | |
84 " | |
85 " }}} | |
86 | |
87 if exists("b:did_indent") | |
88 finish | |
89 endif | |
90 let b:did_indent = 1 | |
91 | |
92 " Delete the next line to avoid the special indention of items | |
93 if !exists("g:tex_indent_items") | |
94 let g:tex_indent_items = 1 | |
95 endif | |
96 if !exists("g:tex_indent_brace") | |
97 let g:tex_indent_brace = 1 | |
98 endif | |
99 if !exists("g:tex_indent_and") | |
100 let g:tex_indent_and = 1 | |
101 endif | |
102 if g:tex_indent_items | |
103 if !exists("g:tex_itemize_env") | |
104 let g:tex_itemize_env = 'itemize\|description\|enumerate\|thebibliography' | |
105 endif | |
106 if !exists('g:tex_items') | |
107 let g:tex_items = '\\bibitem\|\\item' | |
108 endif | |
109 else | |
110 let g:tex_items = '' | |
111 endif | |
112 | |
113 if !exists("g:tex_noindent_env") | |
114 let g:tex_noindent_env = 'document\|verbatim\|lstlisting' | |
115 endif | |
116 | |
117 setlocal autoindent | |
118 setlocal nosmartindent | |
119 setlocal indentexpr=GetTeXIndent() | |
120 exec 'setlocal indentkeys+=},],\&' . substitute(g:tex_items, '^\|\(\\|\)', ',=', 'g') | |
121 let g:tex_items = '^\s*' . g:tex_items | |
122 | |
123 | |
124 " Only define the function once | |
125 if exists("*GetTeXIndent") | finish | |
126 endif | |
127 | |
128 | |
129 function GetTeXIndent() | |
130 " Find a non-blank line above the current line. | |
131 let lnum = prevnonblank(v:lnum - 1) | |
132 | |
133 " Comment line is not what we need. | |
134 while lnum != 0 && getline(lnum) =~ '^\s*%' | |
135 let lnum = prevnonblank(lnum - 1) | |
136 endwhile | |
137 | |
138 " At the start of the file use zero indent. | |
139 if lnum == 0 | |
140 return 0 | |
141 endif | |
142 | |
143 let line = getline(lnum) " last line | |
144 let cline = getline(v:lnum) " current line | |
145 | |
146 " You want to align with "&" | |
147 if g:tex_indent_and | |
148 " Align with last line if last line has a "&" | |
149 if stridx(cline, "&") != -1 && stridx(line, "&") != -1 | |
150 return indent(v:lnum) + stridx(line, "&") - stridx(cline, "&") | |
151 endif | |
152 | |
153 " set line & lnum to the line which doesn't contain "&" | |
154 while lnum != 0 && (stridx(line, "&") != -1 || line =~ '^\s*%') | |
155 let lnum = prevnonblank(lnum - 1) | |
156 let line = getline(lnum) | |
157 endwhile | |
158 endif | |
159 | |
160 | |
161 if lnum == 0 | |
162 return 0 | |
163 endif | |
164 | |
165 let ind = indent(lnum) | |
166 | |
167 " New code for comment: retain the indent of current line | |
168 if cline =~ '^\s*%' | |
169 return indent(v:lnum) | |
170 endif | |
171 | |
172 " Add a 'shiftwidth' after beginning of environments. | |
173 " Don't add it for \begin{document} and \begin{verbatim} | |
174 ""if line =~ '^\s*\\begin{\(.*\)}' && line !~ 'verbatim' | |
175 " LH modification : \begin does not always start a line | |
176 " ZYC modification : \end after \begin won't cause wrong indent anymore | |
177 if line =~ '\\begin{.*}' && line !~ g:tex_noindent_env | |
178 \ && line !~ '\\begin{.\{-}}.*\\end{.*}' | |
179 | |
180 let ind = ind + &sw | |
181 | |
182 if g:tex_indent_items | |
183 " Add another sw for item-environments | |
184 if line =~ g:tex_itemize_env | |
185 let ind = ind + &sw | |
186 endif | |
187 endif | |
188 endif | |
189 | |
190 | |
191 " Subtract a 'shiftwidth' when an environment ends | |
192 if cline =~ '^\s*\\end' && cline !~ g:tex_noindent_env | |
193 | |
194 if g:tex_indent_items | |
195 " Remove another sw for item-environments | |
196 if cline =~ g:tex_itemize_env | |
197 let ind = ind - &sw | |
198 endif | |
199 endif | |
200 | |
201 let ind = ind - &sw | |
202 endif | |
203 | |
204 if g:tex_indent_brace | |
205 " Add a 'shiftwidth' after a "{" or "[". | |
206 let sum1 = 0 | |
207 for i in range(0, strlen(line)-1) | |
208 if line[i] == "}" || line[i] == "]" | |
209 let sum1 = max([0, sum1-1]) | |
210 endif | |
211 if line[i] == "{" || line[i] == "[" | |
212 let sum1 += 1 | |
213 endif | |
214 endfor | |
215 | |
216 let sum2 = 0 | |
217 for i in reverse(range(0, strlen(cline)-1)) | |
218 if cline[i] == "{" || cline[i] == "[" | |
219 let sum2 = max([0, sum2-1]) | |
220 endif | |
221 if cline[i] == "}" || cline[i] == "]" | |
222 let sum2 += 1 | |
223 endif | |
224 endfor | |
225 | |
226 let ind += (sum1 - sum2) * &sw | |
227 endif | |
228 | |
229 | |
230 " Special treatment for 'item' | |
231 " ---------------------------- | |
232 | |
233 if g:tex_indent_items | |
234 | |
235 " '\item' or '\bibitem' itself: | |
236 if cline =~ g:tex_items | |
237 let ind = ind - &sw | |
238 endif | |
239 | |
240 " lines following to '\item' are intented once again: | |
241 if line =~ g:tex_items | |
242 let ind = ind + &sw | |
243 endif | |
244 | |
245 endif | |
246 | |
247 return ind | |
248 endfunction | |
249 | |
250 " vim: set sw=4 textwidth=80: |