FM / indent

/usr/share/vim/vim82/indent

Name	Size	Mode	Actions
aap.vim	265	0644	edit dl rm
ada.vim	11234	0644	edit dl rm
ant.vim	290	0644	edit dl rm
automake.vim	243	0644	edit dl rm
awk.vim	7774	0644	edit dl rm
bash.vim	350	0644	edit dl rm
bib.vim	346	0644	edit dl rm
bst.vim	1937	0644	edit dl rm
bzl.vim	2925	0644	edit dl rm
c.vim	325	0644	edit dl rm
cdl.vim	4342	0644	edit dl rm
ch.vim	470	0644	edit dl rm
chaiscript.vim	1138	0644	edit dl rm
changelog.vim	264	0644	edit dl rm
clojure.vim	11557	0644	edit dl rm
cmake.vim	2683	0644	edit dl rm
cobol.vim	8832	0644	edit dl rm
config.vim	2222	0644	edit dl rm
context.vim	752	0644	edit dl rm
cpp.vim	329	0644	edit dl rm
cs.vim	1756	0644	edit dl rm
css.vim	1813	0644	edit dl rm
cucumber.vim	2678	0644	edit dl rm
cuda.vim	305	0644	edit dl rm
d.vim	572	0644	edit dl rm
dictconf.vim	337	0644	edit dl rm
dictdconf.vim	338	0644	edit dl rm
docbk.vim	336	0644	edit dl rm
dosbatch.vim	1382	0644	edit dl rm
dtd.vim	11954	0644	edit dl rm
dtrace.vim	451	0644	edit dl rm
dune.vim	332	0644	edit dl rm
dylan.vim	2770	0644	edit dl rm
eiffel.vim	3317	0644	edit dl rm
elm.vim	3277	0644	edit dl rm
erlang.vim	50066	0644	edit dl rm
eruby.vim	3016	0644	edit dl rm
eterm.vim	743	0644	edit dl rm
falcon.vim	14077	0644	edit dl rm
fortran.vim	7664	0644	edit dl rm
framescript.vim	891	0644	edit dl rm
gitconfig.vim	841	0644	edit dl rm
gitolite.vim	1277	0644	edit dl rm
go.vim	1673	0644	edit dl rm
haml.vim	2203	0644	edit dl rm
hamster.vim	1692	0644	edit dl rm
hog.vim	1892	0644	edit dl rm
html.vim	33651	0644	edit dl rm
htmldjango.vim	273	0644	edit dl rm
idlang.vim	1683	0644	edit dl rm
ishd.vim	1877	0644	edit dl rm
j.vim	1812	0644	edit dl rm
java.vim	4287	0644	edit dl rm
javascript.vim	15362	0644	edit dl rm
javascriptreact.vim	109	0644	edit dl rm
json.vim	4528	0644	edit dl rm
jsonc.vim	4727	0644	edit dl rm
jsp.vim	462	0644	edit dl rm
julia.vim	15449	0644	edit dl rm
ld.vim	1867	0644	edit dl rm
less.vim	243	0644	edit dl rm
lifelines.vim	638	0644	edit dl rm
liquid.vim	1899	0644	edit dl rm
lisp.vim	353	0644	edit dl rm
logtalk.vim	1859	0644	edit dl rm
lua.vim	1927	0644	edit dl rm
mail.vim	355	0644	edit dl rm
make.vim	3565	0644	edit dl rm
matlab.vim	4923	0644	edit dl rm
meson.vim	5319	0644	edit dl rm
mf.vim	156	0644	edit dl rm
mma.vim	2273	0644	edit dl rm
mp.vim	11321	0644	edit dl rm
nginx.vim	362	0644	edit dl rm
nsis.vim	3305	0644	edit dl rm
objc.vim	1646	0644	edit dl rm
ocaml.vim	9191	0644	edit dl rm
occam.vim	4700	0644	edit dl rm
pascal.vim	5793	0644	edit dl rm
perl.vim	5905	0644	edit dl rm
php.vim	25901	0644	edit dl rm
postscr.vim	1708	0644	edit dl rm
pov.vim	2662	0644	edit dl rm
prolog.vim	1864	0644	edit dl rm
ps1.vim	410	0644	edit dl rm
pyrex.vim	326	0644	edit dl rm
python.vim	6984	0644	edit dl rm
r.vim	14037	0644	edit dl rm
raku.vim	3416	0644	edit dl rm
raml.vim	285	0644	edit dl rm
readline.vim	786	0644	edit dl rm
rhelp.vim	2840	0644	edit dl rm
rmd.vim	2187	0644	edit dl rm
rnoweb.vim	1087	0644	edit dl rm
rpl.vim	1863	0644	edit dl rm
rrst.vim	1195	0644	edit dl rm
rst.vim	1820	0644	edit dl rm
ruby.vim	30148	0644	edit dl rm
rust.vim	6498	0644	edit dl rm
sas.vim	5270	0644	edit dl rm
sass.vim	950	0644	edit dl rm
scala.vim	19656	0644	edit dl rm
scheme.vim	372	0644	edit dl rm
scss.vim	191	0644	edit dl rm
sdl.vim	2829	0644	edit dl rm
sh.vim	9257	0644	edit dl rm
sml.vim	6478	0644	edit dl rm
sql.vim	1204	0644	edit dl rm
sqlanywhere.vim	13269	0644	edit dl rm
sshconfig.vim	796	0644	edit dl rm
systemd.vim	205	0644	edit dl rm
systemverilog.vim	8629	0644	edit dl rm
tcl.vim	2542	0644	edit dl rm
tcsh.vim	1381	0644	edit dl rm
teraterm.vim	1413	0644	edit dl rm
tex.vim	13689	0644	edit dl rm
tf.vim	1549	0644	edit dl rm
tilde.vim	1013	0644	edit dl rm
treetop.vim	708	0644	edit dl rm
typescript.vim	14481	0644	edit dl rm
vb.vim	2089	0644	edit dl rm
verilog.vim	8168	0644	edit dl rm
vhdl.vim	14666	0644	edit dl rm
vim.vim	5764	0644	edit dl rm
vroom.vim	379	0644	edit dl rm
wast.vim	458	0644	edit dl rm
xf86conf.vim	709	0644	edit dl rm
xhtml.vim	269	0644	edit dl rm
xinetd.vim	1231	0644	edit dl rm
xml.vim	7784	0644	edit dl rm
xsd.vim	253	0644	edit dl rm
xslt.vim	297	0644	edit dl rm
yacc.vim	781	0644	edit dl rm
yaml.vim	5471	0644	edit dl rm
zimbu.vim	3947	0644	edit dl rm
zsh.vim	411	0644	edit dl rm

Edit: /usr/share/vim/vim82/indent/tex.vim (13689B)

" Vim indent file
" Language:     LaTeX
" Maintainer:   Yichao Zhou <broken.zhou AT gmail.com>
" Created:      Sat, 16 Feb 2002 16:50:19 +0100
" Version: 1.0.0
"   Please email me if you found something I can do.  Comments, bug report and
"   feature request are 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 Yichao Zhou <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 Yichao Zhou <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 Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Bug fix: improve the smartindent-like indent for "{}" and
"               "[]".
"               2012/02/27 by Yichao Zhou <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 Yichao Zhou <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 Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Modify "&" so that only indent when current line start with
"                   "&".
"               2012/03/12 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Modify indentkeys.
"               2012/03/18 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Add &cpo
"               2013/05/02 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Fix problem about GetTeXIndent checker. Thank Albert Netymk
"                   for reporting this.
"               2014/06/23 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Remove the feature g:tex_indent_and because it is buggy.
"               (*) If there is not any obvious indentation hints, we do not
"                   alert our user's current indentation.
"               (*) g:tex_indent_brace now only works if the open brace is the
"                   last character of that line.
"               2014/08/03 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Indent current line if last line has larger indentation
"               2016/11/08 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Fix problems for \[ and \].  Thanks Bruno for reporting.
"               2017/04/30 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Fix a bug between g:tex_noindent_env and g:tex_indent_items
"                   Now g:tex_noindent_env='document\|verbatim\|itemize' (Emacs
"                   style) is supported.  Thanks Miles Wheeler for reporting.
"               2018/02/07 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Make indentation more smart in the normal mode
"               2020/04/26 by Yichao Zhou <broken.zhou AT gmail.com>
"               (*) Fix a bug related to \[ & \].  Thanks Manuel Boni for
"               reporting.
"
" }}}

" Document: {{{
"
" For proper latex experience, please put
"         let g:tex_flavor = "latex"
" into your vimrc.
"
" * g:tex_indent_brace
"
"   If this variable is unset or non-zero, it will use smartindent-like style
"   for "{}" and "[]".  Now this only works if the open brace is the last
"   character of that line.
"
"         % Example 1
"         \usetikzlibrary{
"           external
"         }
"
"         % Example 2
"         \tikzexternalize[
"           prefix=tikz]
"
" * 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.
"
"              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'.
" }}}

" Only define the function once
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_max_scan_line")
    let g:tex_max_scan_line = 60
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\|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)
    let cnum = v:lnum

" 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), '\s*%.*', '','g')     " last line
    let cline = substitute(getline(v:lnum), '\s*%.*', '', 'g') " current line

let ccol = 1
    while cline[ccol] =~ '\s'
        let ccol += 1
    endwhile

"  We are in verbatim, so do what our user what.
    if synIDattr(synID(v:lnum, ccol, 1), "name") == "texZone"
        if empty(cline)
            return indent(lnum)
        else
            return indent(v:lnum)
        endif
    endif

if lnum == 0
        return 0
    endif

let ind = indent(lnum)
    let stay = 1

" 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{.*}' 
        if line !~ g:tex_noindent_env
            let ind = ind + shiftwidth()
            let stay = 0
        endif

if g:tex_indent_items
            " Add another sw for item-environments
            if line =~ g:tex_itemize_env
                let ind = ind + shiftwidth()
                let stay = 0
            endif
        endif
    endif

if cline =~ '\\end{.*}'
        let retn = s:GetEndIndentation(v:lnum)
        if retn != -1
            return retn
        endif
    end
    " Subtract a 'shiftwidth' when an environment ends
    if cline =~ '\\end{.*}'
                \ && cline !~ g:tex_noindent_env
                \ && cline !~ '\\begin{.*}.*\\end{.*}'
        if g:tex_indent_items
            " Remove another sw for item-environments
            if cline =~ g:tex_itemize_env
                let ind = ind - shiftwidth()
                let stay = 0
            endif
        endif

let ind = ind - shiftwidth()
        let stay = 0
    endif

if g:tex_indent_brace
        if line =~ '[[{]$'
            let ind += shiftwidth()
            let stay = 0
        endif

if cline =~ '^\s*\\\?[\]}]' && s:CheckPairedIsLastCharacter(v:lnum, ccol)
            let ind -= shiftwidth()
            let stay = 0
        endif

if line !~ '^\s*\\\?[\]}]'
            for i in range(1, strlen(line)-1)
                let char = line[i]
                if char == ']' || char == '}'
                    if s:CheckPairedIsLastCharacter(lnum, i)
                        let ind -= shiftwidth()
                        let stay = 0
                    endif
                endif
            endfor
        endif
    endif

" Special treatment for 'item'
    " ----------------------------

if g:tex_indent_items
        " '\item' or '\bibitem' itself:
        if cline =~ g:tex_items
            let ind = ind - shiftwidth()
            let stay = 0
        endif
        " lines following to '\item' are indented once again:
        if line =~ g:tex_items
            let ind = ind + shiftwidth()
            let stay = 0
        endif
    endif

if stay && mode() == 'i'
        " If there is no obvious indentation hint, and indentation is triggered
        " in insert mode, we trust our user.
        if empty(cline)
            return ind
        else
            return max([indent(v:lnum), s:GetLastBeginIndentation(v:lnum)])
        endif
    else
        return ind
    endif
endfunction "}}}

function! s:GetLastBeginIndentation(lnum) " {{{
    let matchend = 1
    for lnum in range(a:lnum-1, max([a:lnum - g:tex_max_scan_line, 1]), -1)
        let line = getline(lnum)
        if line =~ '\\end{.*}'
            let matchend += 1
        endif
        if line =~ '\\begin{.*}'
            let matchend -= 1
        endif
        if matchend == 0
            if line =~ g:tex_noindent_env
                return indent(lnum)
            endif
            if line =~ g:tex_itemize_env
                return indent(lnum) + 2 * shiftwidth()
            endif
            return indent(lnum) + shiftwidth()
        endif
    endfor
    return -1
endfunction

function! s:GetEndIndentation(lnum) " {{{
    if getline(a:lnum) =~ '\\begin{.*}.*\\end{.*}'
        return -1
    endif

let min_indent = 100
    let matchend = 1
    for lnum in range(a:lnum-1, max([a:lnum-g:tex_max_scan_line, 1]), -1)
        let line = getline(lnum)
        if line =~ '\\end{.*}'
            let matchend += 1
        endif
        if line =~ '\\begin{.*}'
            let matchend -= 1
        endif
        if matchend == 0
            return indent(lnum)
        endif
        if !empty(line)
            let min_indent = min([min_indent, indent(lnum)])
        endif
    endfor
    return min_indent - shiftwidth()
endfunction

" Most of the code is from matchparen.vim
function! s:CheckPairedIsLastCharacter(lnum, col) "{{{
    let c_lnum = a:lnum
    let c_col = a:col+1

let line = getline(c_lnum)
    if line[c_col-1] == '\'
        let c_col = c_col + 1
    endif
    let c = line[c_col-1]

let plist = split(&matchpairs, '.\zs[:,]')
    let i = index(plist, c)
    if i < 0
        return 0
    endif

" Figure out the arguments for searchpairpos().
    if i % 2 == 0
        let s_flags = 'nW'
        let c2 = plist[i + 1]
    else
        let s_flags = 'nbW'
        let c2 = c
        let c = plist[i - 1]
    endif
    if c == '['
        let c = '\['
        let c2 = '\]'
    endif

" Find the match.  When it was just before the cursor move it there for a
    " moment.
    let save_cursor = winsaveview()
    call cursor(c_lnum, c_col)

" When not in a string or comment ignore matches inside them.
    " We match "escape" for special items, such as lispEscapeSpecial.
    let s_skip ='synIDattr(synID(line("."), col("."), 0), "name") ' .
                \ '=~?  "string\\|character\\|singlequote\\|escape\\|comment"'
    execute 'if' s_skip '| let s_skip = 0 | endif'

let stopline = max([0, c_lnum - g:tex_max_scan_line])

" Limit the search time to 300 msec to avoid a hang on very long lines.
    " This fails when a timeout is not supported.
    try
        let [m_lnum, m_col] = searchpairpos(c, '', c2, s_flags, s_skip, stopline, 100)
    catch /E118/
    endtry

call winrestview(save_cursor)

if m_lnum > 0
        let line = getline(m_lnum)
        return strlen(line) == m_col
    endif

return 0
endfunction "}}}

let &cpo = s:cpo_save
unlet s:cpo_save

" vim: set sw=4 textwidth=80:

cmd: