" Vim indent file " Language: LaTeX " Maintainer: Johannes Tanzler " Version: 0.5 " Created: Sat, 16 Feb 2002 16:50:19 +0100 " Last Change: Mar, 27 Jun 2011 11:46:35 +0200 " Last Update: 18th feb 2002, by LH : " (*) better support for the option " (*) use some regex instead of several '||'. " Oct 9th, 2003, by JT: " (*) don't change indentation of lines starting with '%' " 2005/06/15, Moshe Kaminsky " (*) New variables: " g:tex_items, g:tex_itemize_env, g:tex_noindent_env " 2011/3/6, by Zhou Yi Chao " (*) Don't change indentation of lines starting with '%' " I don't see any code with '%' and it doesn't work properly " so I add some code. " (*) New features: Add smartindent-like indent " for "{}" and "[]". " (*) New variables: g:tex_indent_brace " " Options: {{{ " " To set the following options (ok, currently it's just one), add a line like " let g:tex_indent_items = 1 " to your ~/.vimrc. " " * g:tex_indent_brace " " If this variable is unset or non-zero, it will use smartindent-like style " for "{}" and "[]" " " * g:tex_indent_items " " If this variable is set, item-environments are indented like Emacs does " it, i.e., continuation lines are indented with a shiftwidth. " " NOTE: I've already set the variable below; delete the corresponding line " if you don't like this behaviour. " " Per default, it is unset. " " set unset " ---------------------------------------------------------------- " \begin{itemize} \begin{itemize} " \item blablabla \item blablabla " bla bla bla bla bla bla " \item blablabla \item blablabla " bla bla bla bla bla bla " \end{itemize} \end{itemize} " " " * g:tex_items " " A list of tokens to be considered as commands for the beginning of an item " command. The tokens should be separated with '\|'. The initial '\' should " be escaped. The default is '\\bibitem\|\\item'. " " * g:tex_itemize_env " " A list of environment names, separated with '\|', where the items (item " commands matching g:tex_items) may appear. The default is " 'itemize\|description\|enumerate\|thebibliography'. " " * g:tex_noindent_env " " A list of environment names. separated with '\|', where no indentation is " required. The default is 'document\|verbatim\|comment\|lstlisting'. " " }}} " " License: {{{ " Copyright (c) 2002-2011 Johannes Tanzler " Permission is hereby granted, free of charge, to any person obtaining " a copy of this software and associated documentation files (the " "Software"), to deal in the Software without restriction, including " without limitation the rights to use, copy, modify, merge, publish, " distribute, sublicense, and/or sell copies of the Software, and to " permit persons to whom the Software is furnished to do so, subject to " the following conditions: " " The above copyright notice and this permission notice shall be included " in all copies or substantial portions of the Software. " " THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, " EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF " MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. " IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY " CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, " TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE " SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. " }}} if exists("b:did_indent") finish endif let b:did_indent = 1 " Delete the next line to avoid the special indention of items if !exists("g:tex_indent_items") let g:tex_indent_items = 1 endif if !exists("g:tex_indent_brace") let g:tex_indent_brace = 1 endif if g:tex_indent_items if !exists("g:tex_itemize_env") let g:tex_itemize_env = 'itemize\|description\|enumerate\|thebibliography' endif if !exists('g:tex_items') let g:tex_items = '\\bibitem\|\\item' endif else let g:tex_items = '' endif if !exists("g:tex_noindent_env") let g:tex_noindent_env = 'document\|verbatim\|comment\|lstlisting' endif setlocal autoindent setlocal nosmartindent setlocal indentexpr=GetTeXIndent() exec 'setlocal indentkeys+=},]' . substitute(g:tex_items, '^\|\(\\|\)', ',=', 'g') let g:tex_items = '^\s*' . g:tex_items " Only define the function once if exists("*GetTeXIndent") | finish endif function GetTeXIndent() " Find a non-blank line above the current line. let lnum = prevnonblank(v:lnum - 1) " New code for comments: Comments is not what we need. while lnum != 0 if getline(lnum) !~ '^\s*%' break endif let lnum = prevnonblank(lnum - 1) endwhile " At the start of the file use zero indent. if lnum == 0 | return 0 endif let ind = indent(lnum) let line = getline(lnum) " last line let cline = getline(v:lnum) " current line " New code for comment: retain the indent of current line if cline =~ '^\s*%' return indent(v:lnum) endif " Add a 'shiftwidth' after beginning of environments. " Don't add it for environments identified by " g:tex_noindent_env " LH modification : \begin does not always start a line let current_regexp = '\\begin' while 1 let match_list = matchlist(line, current_regexp.'\s*{\(.*\)}') if (empty(match_list)) break endif let environment_type = get(match_list, 1) if environment_type !~ g:tex_noindent_env let ind = ind + &sw if g:tex_indent_items == 1 " Add another sw for item-environments if line =~ g:tex_itemize_env let ind = ind + &sw endif endif endif " Make the regexp match the following begin let current_regexp = current_regexp.'.*\\begin' endwhile " Subtract a 'shiftwidth' when an environment ends if cline =~ '^\s*\\end' && cline !~ g:tex_noindent_env if g:tex_indent_items == 1 " Remove another sw for item-environments if cline =~ g:tex_itemize_env let ind = ind - &sw endif endif let ind = ind - &sw endif " Subtract a 'shiftwidth' when an environment ended " the previous line but the shiftwidth wasn't " applied because it didn't begin the line let current_regexp = '\\end' while 1 let match_list = matchlist(line, current_regexp.'\s*{\(.*\)}') if (empty(match_list)) break endif let environment_type = get(match_list, 1) if environment_type !~ g:tex_noindent_env \ && (current_regexp != '\\end' || line !~ '^\s*\\end') " If the end begin the line, the shift width has already " been subtracted at the previous line let ind = ind - &sw if g:tex_indent_items == 1 " Add another sw for item-environments if line =~ g:tex_itemize_env let ind = ind - &sw endif endif endif " Make the regexp match the following end let current_regexp = current_regexp.'.*\\end' endwhile if g:tex_indent_brace " Add a 'shiftwidth' after a "{" or "[" while there are not "}" and "]" " after them. \m for magic if line =~ '\m\(\(\[[^\]]*\)\|\({[^}]*\)\)$' let ind = ind + &sw endif " Remove a 'shiftwidth' after a "}" or "]" while there are not "{" and "[" " before them. \m for magic if cline =~ '\m^\(\([^[]*\]\)\|\([^{]*}\)\)' let ind = ind - &sw endif endif " Special treatment for 'item' " ---------------------------- if g:tex_indent_items " '\item' or '\bibitem' itself: if cline =~ g:tex_items let ind = ind - &sw endif " lines following to '\item' are intented once again: if line =~ g:tex_items let ind = ind + &sw endif endif return ind endfunction " vim: set sw=4 textwidth=78: