487 lines
13 KiB
VimL
487 lines
13 KiB
VimL
" vimtex - LaTeX plugin for Vim
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"
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" Maintainer: Karl Yngve Lervåg
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" Email: karl.yngve@gmail.com
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"
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function! vimtex#toc#init_options() " {{{1
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call vimtex#util#set_default('g:vimtex_toc_enabled', 1)
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if !g:vimtex_toc_enabled | return | endif
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call vimtex#util#set_default('g:vimtex_toc_fold', 0)
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call vimtex#util#set_default('g:vimtex_toc_fold_levels', 10)
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call vimtex#util#set_default('g:vimtex_toc_number_width', 0)
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call vimtex#util#set_default('g:vimtex_toc_secnumdepth', 3)
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call vimtex#util#set_default('g:vimtex_toc_show_numbers', 1)
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call vimtex#util#set_default('g:vimtex_toc_show_preamble', 1)
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endfunction
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" }}}1
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function! vimtex#toc#init_script() " {{{1
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call vimtex#util#set_highlight('VimtexTocNum', 'Number')
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call vimtex#util#set_highlight('VimtexTocSec0', 'Title')
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call vimtex#util#set_highlight('VimtexTocSec1', 'Normal')
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call vimtex#util#set_highlight('VimtexTocSec2', 'helpVim')
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call vimtex#util#set_highlight('VimtexTocSec3', 'NonText')
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call vimtex#util#set_highlight('VimtexTocSec4', 'Comment')
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call vimtex#util#set_highlight('VimtexTocHelp', 'helpVim')
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if !g:vimtex_toc_enabled | return | endif
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let s:name = 'Table of contents (vimtex)'
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"
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" Define TOC variables
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"
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" Define counters
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let s:max_level = 0
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let s:count_matters = 0
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" Define dictionary to keep track of TOC numbers
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let s:number = {
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\ 'part' : 0,
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\ 'chapter' : 0,
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\ 'section' : 0,
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\ 'subsection' : 0,
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\ 'subsubsection' : 0,
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\ 'subsubsubsection' : 0,
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\ 'current_level' : 0,
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\ 'preamble' : 0,
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\ 'frontmatter' : 0,
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\ 'mainmatter' : 0,
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\ 'appendix' : 0,
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\ 'backmatter' : 0,
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\ }
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" Map for section hierarchy
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let s:sec_to_value = {
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\ '_' : 0,
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\ 'subsubsubsection' : 1,
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\ 'subsubsection' : 2,
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\ 'subsection' : 3,
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\ 'section' : 4,
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\ 'chapter' : 5,
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\ 'part' : 6,
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\ }
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" Define regular expressions to match document parts
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let s:re_sec = '\v^\s*\\%(part|chapter|%(sub)*section)\*?\s*%(\[.{-}\])?\{'
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let s:re_sec_starred = '\v^\s*\\%(part|chapter|%(sub)*section)\*'
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let s:re_sec_level = '\v^\s*\\\zs%(part|chapter|%(sub)*section)'
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let s:re_sec_title = s:re_sec . '\zs.{-}\ze\}?\s*$'
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let s:re_matters = '\v^\s*\\%(front|main|back)matter>'
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let s:re_structure = '\v^\s*\\((front|main|back)matter|appendix)>'
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let s:re_structure_match = '\v((front|main|back)matter|appendix)'
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let s:re_other = {
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\ 'toc' : {
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\ 'title' : 'Table of contents',
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\ 're' : '\v^\s*\\tableofcontents',
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\ },
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\ 'index' : {
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\ 'title' : 'Alphabetical index',
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\ 're' : '\v^\s*\\printindex\[?',
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\ },
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\ 'bib' : {
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\ 'title' : 'Bibliography',
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\ 're' : '\v^\s*\\%('
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\ . 'printbib%(liography|heading)\s*(\{|\[)?'
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\ . '|begin\s*\{\s*thebibliography\s*\}'
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\ . '|bibliography\s*\{)',
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\ },
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\ }
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let s:nocomment = '\v%(%(\\@<!%(\\\\)*)@<=\%.*)@<!'
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let s:re_bibs = s:nocomment
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let s:re_bibs .= '\\(bibliography|add(bibresource|globalbib|sectionbib))'
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let s:re_bibs .= '\m\s*{\zs[^}]\+\ze}'
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endfunction
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" }}}1
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function! vimtex#toc#init_buffer() " {{{1
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if !g:vimtex_toc_enabled | return | endif
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" Define commands
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command! -buffer VimtexTocOpen call vimtex#toc#open()
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command! -buffer VimtexTocToggle call vimtex#toc#toggle()
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" Define mappings
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nnoremap <buffer> <plug>(vimtex-toc-open) :call vimtex#toc#open()<cr>
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nnoremap <buffer> <plug>(vimtex-toc-toggle) :call vimtex#toc#toggle()<cr>
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endfunction
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" }}}1
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function! vimtex#toc#open() " {{{1
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if vimtex#index#open(s:name) | return | endif
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let index = {
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\ 'name' : s:name,
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\ 'calling_file' : expand('%:p'),
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\ 'calling_line' : line('.'),
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\ 'entries' : vimtex#toc#get_entries(),
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\ 'show_numbers' : g:vimtex_toc_show_numbers,
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\ 'max_level' : s:max_level,
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\ 'topmatters' : s:count_matters,
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\ 'secnumdepth' : g:vimtex_toc_secnumdepth,
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\ 'help' : [
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\ '-: decrease secnumpdeth',
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\ '+: increase secnumpdeth',
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\ 's: hide numbering',
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\ ],
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\ 'hook_init_post' : function('s:index_hook_init_post'),
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\ 'print_entries' : function('s:index_print_entries'),
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\ 'print_entry' : function('s:index_print_entry'),
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\ 'print_number' : function('s:index_print_number'),
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\ 'increase_depth' : function('s:index_secnumdepth_increase'),
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\ 'decrease_depth' : function('s:index_secnumdepth_decrease'),
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\ 'syntax' : function('s:index_syntax'),
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\ 'toggle_numbers' : function('s:index_toggle_numbers'),
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\ }
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call vimtex#index#create(index)
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endfunction
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" }}}1
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function! vimtex#toc#toggle() " {{{1
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if vimtex#index#open(s:name)
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call vimtex#index#close(s:name)
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else
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call vimtex#toc#open()
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silent execute 'wincmd w'
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endif
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endfunction
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" }}}1
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function! vimtex#toc#get_entries() " {{{1
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if !exists('b:vimtex') | return [] | endif
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"
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" Parses tex project for TOC entries
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"
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" The function returns a list of entries. Each entry is a dictionary:
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"
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" entry = {
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" title : "Some title",
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" number : "3.1.2",
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" file : /path/to/file.tex,
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" line : 142,
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" level : 2,
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" }
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"
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let l:parsed = vimtex#parser#tex(b:vimtex.tex)
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let s:max_level = 0
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let s:count_matters = 0
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for [l:file, l:lnum, l:line] in l:parsed
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if l:line =~# s:re_sec
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let s:max_level = max([s:max_level,
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\ s:sec_to_value[matchstr(l:line, s:re_sec_level)]])
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elseif l:line =~# s:re_matters
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let s:count_matters += 1
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endif
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endfor
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call s:number_reset('preamble')
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let l:toc = []
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for [l:file, l:lnum, l:line] in l:parsed
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" Bibliography files
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if l:line =~# s:re_bibs
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call add(l:toc, s:parse_bib_input(l:line))
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continue
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endif
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" Preamble
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if s:number.preamble
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if g:vimtex_toc_show_preamble && l:line =~# '\v^\s*\\documentclass'
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call add(l:toc, {
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\ 'title' : 'Preamble',
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\ 'number' : '',
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\ 'file' : l:file,
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\ 'line' : l:lnum,
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\ 'level' : s:max_level,
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\ })
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continue
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endif
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if l:line =~# '\v^\s*\\begin\{document\}'
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let s:number.preamble = 0
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endif
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continue
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endif
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" Document structure (front-/main-/backmatter, appendix)
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if l:line =~# s:re_structure
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call s:number_reset(matchstr(l:line, s:re_structure_match))
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continue
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endif
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" Sections (\parts, \chapters, \sections, and \subsections, ...)
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if l:line =~# s:re_sec
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call add(l:toc, s:parse_line_sec(l:file, l:lnum, l:line))
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continue
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endif
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" Other stuff
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for l:other in values(s:re_other)
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if l:line =~# l:other.re
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call add(l:toc, {
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\ 'title' : l:other.title,
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\ 'number' : '',
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\ 'file' : l:file,
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\ 'line' : l:lnum,
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\ 'level' : s:max_level,
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\ })
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continue
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endif
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endfor
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endfor
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return l:toc
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endfunction
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" }}}1
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function! s:index_fold_level(lnum) " {{{1
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let pline = getline(a:lnum - 1)
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let cline = getline(a:lnum)
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let nline = getline(a:lnum + 1)
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let l:pn = matchstr(pline, '\d$')
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let l:cn = matchstr(cline, '\d$')
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let l:nn = matchstr(nline, '\d$')
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" Don't fold options
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if cline =~# '^\s*$'
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return 0
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endif
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if l:nn > l:cn && g:vimtex_toc_fold_levels >= l:nn
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return '>' . l:nn
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endif
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if l:cn < l:pn && l:cn >= l:nn && g:vimtex_toc_fold_levels >= l:cn
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return l:cn
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endif
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return '='
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endfunction
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" }}}1
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function! s:index_fold_text() " {{{1
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return getline(v:foldstart)
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endfunction
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" }}}1
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function! s:index_hook_init_post() dict " {{{1
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if g:vimtex_toc_fold
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let self.fold_level = function('s:index_fold_level')
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let self.fold_text = function('s:index_fold_text')
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setlocal foldmethod=expr
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setlocal foldexpr=b:index.fold_level(v:lnum)
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setlocal foldtext=b:index.fold_text()
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endif
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nnoremap <buffer> <silent> s :call b:index.toggle_numbers()<cr>
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nnoremap <buffer> <silent> - :call b:index.decrease_depth()<cr>
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nnoremap <buffer> <silent> + :call b:index.increase_depth()<cr>
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" Jump to closest index
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call setpos('.', self.pos_closest)
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endfunction
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" }}}1
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function! s:index_print_entries() dict " {{{1
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if g:vimtex_toc_number_width
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let self.number_width = g:vimtex_toc_number_width
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else
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let self.number_width = 2*(self.secnumdepth + 2)
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endif
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let self.number_width = max([0, self.number_width])
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let self.number_format = '%-' . self.number_width . 's'
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let index = 0
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let closest_index = 0
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for entry in self.entries
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let index += 1
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call self.print_entry(entry)
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if entry.file == self.calling_file && entry.line <= self.calling_line
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let closest_index = index
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endif
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endfor
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let self.pos_closest = [0, closest_index + self.help_nlines, 0, 0]
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endfunction
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" }}}1
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function! s:index_print_entry(entry) dict " {{{1
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let level = self.max_level - a:entry.level
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let output = ''
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if self.show_numbers
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let number = level >= self.secnumdepth + 2 ? ''
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\ : strpart(self.print_number(a:entry.number), 0, self.number_width - 1)
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let output .= printf(self.number_format, number)
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endif
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let output .= printf('%-140S%s', a:entry.title, level)
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call append('$', output)
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endfunction
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" }}}1
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function! s:index_print_number(number) dict " {{{1
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if empty(a:number) | return '' | endif
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let number = [
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\ a:number.part,
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\ a:number.chapter,
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\ a:number.section,
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\ a:number.subsection,
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\ a:number.subsubsection,
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\ a:number.subsubsubsection,
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\ ]
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" Remove unused parts
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while number[0] == 0
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call remove(number, 0)
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endwhile
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while number[-1] == 0
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call remove(number, -1)
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endwhile
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" Change numbering in frontmatter, appendix, and backmatter
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if self.topmatters > 1
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\ && (a:number.frontmatter || a:number.backmatter)
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return ''
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elseif a:number.appendix
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let number[0] = nr2char(number[0] + 64)
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endif
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return join(number, '.')
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endfunction
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" }}}1
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function! s:index_secnumdepth_decrease() dict "{{{1
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let self.secnumdepth = max([self.secnumdepth - 1, -2])
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call self.refresh()
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endfunction
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" }}}1
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function! s:index_secnumdepth_increase() dict "{{{1
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let self.secnumdepth = min([self.secnumdepth + 1, 5])
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call self.refresh()
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endfunction
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" }}}1
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function! s:index_syntax() dict "{{{1
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syntax match VimtexTocNum
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\ /^\(\([A-Z]\+\>\|\d\+\)\(\.\d\+\)*\)\?\s*/ contained
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syntax match VimtexTocSec0 /^.*0$/ contains=VimtexTocNum,@Tex
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syntax match VimtexTocSec1 /^.*1$/ contains=VimtexTocNum,@Tex
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syntax match VimtexTocSec2 /^.*2$/ contains=VimtexTocNum,@Tex
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syntax match VimtexTocSec3 /^.*3$/ contains=VimtexTocNum,@Tex
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syntax match VimtexTocSec4 /^.*4$/ contains=VimtexTocNum,@Tex
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syntax match VimtexTocHelp /^\S.*: .*/
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endfunction
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" }}}1
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function! s:index_toggle_numbers() dict "{{{1
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let self.show_numbers = self.show_numbers ? 0 : 1
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call self.refresh()
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endfunction
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" }}}1
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function! s:parse_line_sec(file, lnum, line) " {{{1
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let title = matchstr(a:line, s:re_sec_title)
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let level = matchstr(a:line, s:re_sec_level)
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" Check if section is starred
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if a:line =~# s:re_sec_starred
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let number = ''
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let s:number.current_level = s:sec_to_value[level]
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else
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let number = s:number_increment(level)
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endif
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return {
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\ 'title' : title,
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\ 'number' : number,
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\ 'file' : a:file,
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\ 'line' : a:lnum,
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\ 'level' : s:number.current_level,
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\ }
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endfunction
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" }}}1
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function! s:parse_bib_input(line) " {{{1
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let l:file = matchstr(a:line, s:re_bibs)
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" Ensure that the file name has extension
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if l:file !~# '\.bib$'
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let l:file .= '.bib'
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endif
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return {
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\ 'title' : printf('Included bib file: %-.60s', fnamemodify(l:file, ':t')),
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\ 'number' : '',
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\ 'file' : vimtex#util#kpsewhich(l:file),
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\ 'line' : 0,
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\ 'level' : s:max_level,
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\ }
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endfunction
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" }}}1
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function! s:number_reset(part) " {{{1
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for key in keys(s:number)
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let s:number[key] = 0
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endfor
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let s:number[a:part] = 1
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endfunction
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" }}}1
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function! s:number_increment(level) " {{{1
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if a:level ==# 'part'
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let s:number.part += 1
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let s:number.chapter = 0
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let s:number.section = 0
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let s:number.subsection = 0
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let s:number.subsubsection = 0
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let s:number.subsubsubsection = 0
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elseif a:level ==# 'chapter'
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let s:number.chapter += 1
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let s:number.section = 0
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let s:number.subsection = 0
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let s:number.subsubsection = 0
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let s:number.subsubsubsection = 0
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elseif a:level ==# 'section'
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let s:number.section += 1
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let s:number.subsection = 0
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let s:number.subsubsection = 0
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let s:number.subsubsubsection = 0
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elseif a:level ==# 'subsection'
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let s:number.subsection += 1
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let s:number.subsubsection = 0
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let s:number.subsubsubsection = 0
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elseif a:level ==# 'subsubsection'
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let s:number.subsubsection += 1
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let s:number.subsubsubsection = 0
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elseif a:level ==# 'subsubsubsection'
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let s:number.subsubsubsection += 1
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endif
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" Store current level
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let s:number.current_level = s:sec_to_value[a:level]
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return copy(s:number)
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endfunction
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" }}}1
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" vim: fdm=marker sw=2
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