| " Vim indent file |
| " Language: LaTeX |
| " Maintainer: Zhou YiChao <broken.zhou AT gmail.com> |
| " Created: Sat, 16 Feb 2002 16:50:19 +0100 |
| " Last Change: 2012 Mar 18 19:19:50 |
| " Version: 0.7 |
| " Please email me if you found something we can do. Bug report and |
| " feature request is welcome. |
| |
| " Last Update: {{{ |
| " 25th Sep 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 <kaminsky AT math.huji.ac.il> |
| " (*) New variables: |
| " g:tex_items, g:tex_itemize_env, g:tex_noindent_env |
| " 2011/3/6, by Zhou YiChao <broken.zhou AT gmail.com> |
| " (*) 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 |
| " 2011/9/25, by Zhou Yichao <broken.zhou AT gmail.com> |
| " (*) Bug fix: smartindent-like indent for "[]" |
| " (*) New features: Align with "&". |
| " (*) New variable: g:tex_indent_and. |
| " 2011/10/23 by Zhou Yichao <broken.zhou AT gmail.com> |
| " (*) Bug fix: improve the smartindent-like indent for "{}" and |
| " "[]". |
| " 2012/02/27 by Zhou Yichao <broken.zhou AT gmail.com> |
| " (*) Bug fix: support default folding marker. |
| " (*) Indent with "&" is not very handy. Make it not enable by |
| " default. |
| " 2012/03/06 by Zhou Yichao <broken.zhou AT gmail.com> |
| " (*) Modify "&" behavior and make it default again. Now "&" |
| " won't align when there are more then one "&" in the previous |
| " line. |
| " (*) Add indent "\left(" and "\right)" |
| " (*) Trust user when in "verbatim" and "lstlisting" |
| " 2012/03/11 by Zhou Yichao <broken.zhou AT gmail.com> |
| " (*) Modify "&" so that only indent when current line start with |
| " "&". |
| " 2012/03/12 by Zhou Yichao <broken.zhou AT gmail.com> |
| " (*) Modify indentkeys. |
| " 2012/03/18 by Zhou Yichao <broken.zhou AT gmail.com> |
| " (*) Add &cpo |
| " }}} |
| |
| " Document: {{{ |
| " |
| " 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'. |
| " |
| " * g:tex_indent_and |
| " |
| " If this variable is unset or zero, vim will try to align the line with first |
| " "&". This is pretty useful when you use environment like table or align. |
| " Note that this feature need to search back some line, so vim may become |
| " a little slow. |
| " |
| " }}} |
| |
| " Only define the function once |
| if exists("*GetTeXIndent") |
| finish |
| endif |
| |
| if exists("b:did_indent") |
| finish |
| endif |
| |
| let s:cpo_save = &cpo |
| set cpo&vim |
| |
| " Define global variable {{{ |
| |
| let b:did_indent = 1 |
| |
| 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 !exists("g:tex_indent_and") |
| let g:tex_indent_and = 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_indent_paretheses") |
| let g:tex_indent_paretheses = 1 |
| endif |
| |
| if !exists("g:tex_noindent_env") |
| let g:tex_noindent_env = 'document\|verbatim\|lstlisting' |
| endif "}}} |
| |
| " VIM Setting " {{{ |
| setlocal autoindent |
| setlocal nosmartindent |
| setlocal indentexpr=GetTeXIndent() |
| setlocal indentkeys& |
| exec 'setlocal indentkeys+=[,(,{,),},],\&' . substitute(g:tex_items, '^\|\(\\|\)', ',=', 'g') |
| let g:tex_items = '^\s*' . substitute(g:tex_items, '^\(\^\\s\*\)*', '', '') |
| " }}} |
| |
| function GetTeXIndent() " {{{ |
| " Find a non-blank line above the current line. |
| let lnum = prevnonblank(v:lnum - 1) |
| |
| " Comment line is not what we need. |
| while lnum != 0 && getline(lnum) =~ '^\s*%' |
| let lnum = prevnonblank(lnum - 1) |
| endwhile |
| |
| " At the start of the file use zero indent. |
| if lnum == 0 |
| return 0 |
| endif |
| |
| let line = substitute(getline(lnum), '%.*', ' ','g') " last line |
| let cline = substitute(getline(v:lnum), '%.*', ' ', 'g') " current line |
| |
| " We are in verbatim, so do what our user what. |
| if synIDattr(synID(v:lnum, indent(v:lnum), 1), "name") == "texZone" |
| if empty(cline) |
| return indent(lnum) |
| else |
| return indent(v:lnum) |
| end |
| endif |
| |
| " You want to align with "&" |
| if g:tex_indent_and |
| " Align only when current line start with "&" |
| if line =~ '&.*\\\\' && cline =~ '^\s*&' |
| return indent(v:lnum) + stridx(line, "&") - stridx(cline, "&") |
| endif |
| |
| " set line & lnum to the line which doesn't contain "&" |
| while lnum != 0 && (stridx(line, "&") != -1 || line =~ '^\s*%') |
| let lnum = prevnonblank(lnum - 1) |
| let line = getline(lnum) |
| endwhile |
| endif |
| |
| |
| if lnum == 0 |
| return 0 |
| endif |
| |
| let ind = indent(lnum) |
| |
| " 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 \begin{document} and \begin{verbatim} |
| ""if line =~ '^\s*\\begin{\(.*\)}' && line !~ 'verbatim' |
| " LH modification : \begin does not always start a line |
| " ZYC modification : \end after \begin won't cause wrong indent anymore |
| if line =~ '\\begin{.*}' && line !~ g:tex_noindent_env |
| let ind = ind + &sw |
| |
| if g:tex_indent_items |
| " Add another sw for item-environments |
| if line =~ g:tex_itemize_env |
| let ind = ind + &sw |
| endif |
| endif |
| endif |
| |
| " Subtract a 'shiftwidth' when an environment ends |
| if cline =~ '\\end{.*}' && cline !~ g:tex_noindent_env |
| |
| if g:tex_indent_items |
| " Remove another sw for item-environments |
| if cline =~ g:tex_itemize_env |
| let ind = ind - &sw |
| endif |
| endif |
| |
| let ind = ind - &sw |
| endif |
| |
| if g:tex_indent_brace |
| let sum1 = 0 |
| for i in range(0, strlen(line)-1) |
| if line[i] == "}" || line[i] == "]" || |
| \ strpart(line, i, 7) == '\right)' |
| let sum1 = max([0, sum1-1]) |
| endif |
| if line[i] == "{" || line[i] == "[" || |
| \ strpart(line, i, 6) == '\left(' |
| let sum1 += 1 |
| endif |
| endfor |
| |
| let sum2 = 0 |
| for i in reverse(range(0, strlen(cline)-1)) |
| if cline[i] == "{" || cline[i] == "[" || |
| \ strpart(cline, i, 6) == '\left(' |
| let sum2 = max([0, sum2-1]) |
| endif |
| if cline[i] == "}" || cline[i] == "]" || |
| \ strpart(cline, i, 7) == '\right)' |
| let sum2 += 1 |
| endif |
| endfor |
| |
| let ind += (sum1 - sum2) * &sw |
| endif |
| |
| if g:tex_indent_paretheses |
| 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 "}}} |
| |
| let &cpo = s:cpo_save |
| unlet s:cpo_save |
| |
| " vim: set sw=4 textwidth=80: |
