655 lines
20 KiB
VimL
655 lines
20 KiB
VimL
if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'julia') == -1
|
|
|
|
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
|
|
" Support for LaTex-to-Unicode conversion as in the Julia REPL "
|
|
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
|
|
|
|
function! s:L2U_Setup()
|
|
|
|
call s:L2U_SetupGlobal()
|
|
|
|
" Keep track of whether LaTeX-to-Unicode is activated
|
|
" (used when filetype changes)
|
|
if !has_key(b:, "l2u_enabled")
|
|
let b:l2u_enabled = 0
|
|
endif
|
|
|
|
" Did we install the L2U tab mappings?
|
|
if !has_key(b:, "l2u_tab_set")
|
|
let b:l2u_tab_set = 0
|
|
endif
|
|
if !has_key(b:, "l2u_cmdtab_set")
|
|
let b:l2u_cmdtab_set = 0
|
|
endif
|
|
if !has_key(b:, "l2u_keymap_set")
|
|
let b:l2u_keymap_set = 0
|
|
endif
|
|
|
|
" Did we activate the L2U as-you-type substitutions?
|
|
if !has_key(b:, "l2u_autosub_set")
|
|
let b:l2u_autosub_set = 0
|
|
endif
|
|
|
|
" Following are some flags used to pass information between the function which
|
|
" attempts the LaTeX-to-Unicode completion and the fallback function
|
|
|
|
" Was a (possibly partial) completion found?
|
|
let b:l2u_found_completion = 0
|
|
" Is the cursor just after a single backslash
|
|
let b:l2u_singlebslash = 0
|
|
" Backup value of the completeopt settings
|
|
" (since we temporarily add the 'longest' setting while
|
|
" attempting LaTeX-to-Unicode)
|
|
let b:l2u_backup_commpleteopt = &completeopt
|
|
" Are we in the middle of a L2U tab completion?
|
|
let b:l2u_tab_completing = 0
|
|
" Are we calling the tab fallback?
|
|
let b:l2u_in_fallback = 0
|
|
|
|
endfunction
|
|
|
|
function! s:L2U_SetupGlobal()
|
|
|
|
" Initialization of global and script-local variables
|
|
" is only performed once
|
|
if get(g:, "l2u_did_global_setup", 0)
|
|
return
|
|
endif
|
|
|
|
let g:l2u_did_global_setup = 1
|
|
|
|
let g:l2u_symbols_dict = julia_latex_symbols#get_dict()
|
|
|
|
call s:L2U_deprecated_options()
|
|
|
|
if v:version < 704
|
|
let g:latex_to_unicode_tab = 0
|
|
let g:latex_to_unicode_auto = 0
|
|
endif
|
|
|
|
" YouCompleteMe and neocomplcache/neocomplete/deoplete plug-ins do not work well
|
|
" with LaTeX symbols suggestions
|
|
if exists("g:loaded_youcompleteme") ||
|
|
\ exists("g:loaded_neocomplcache") ||
|
|
\ exists("g:loaded_neocomplete") ||
|
|
\ exists("g:loaded_deoplete")
|
|
let g:latex_to_unicode_suggestions = 0
|
|
endif
|
|
|
|
" A hack to forcibly get out of completion mode: feed
|
|
" this string with feedkeys()
|
|
if has("win32") || has("win64")
|
|
let s:l2u_esc_sequence = "\u0006"
|
|
else
|
|
let s:l2u_esc_sequence = "\u0091\b"
|
|
end
|
|
|
|
" Trigger for the previous mapping of <Tab>
|
|
let s:l2u_fallback_trigger = "\u0091L2UFallbackTab"
|
|
|
|
endfunction
|
|
|
|
" Each time the filetype changes, we may need to enable or
|
|
" disable the LaTeX-to-Unicode functionality
|
|
function! LaTeXtoUnicode#Refresh()
|
|
|
|
call s:L2U_Setup()
|
|
|
|
" by default, LaTeX-to-Unicode is only active on julia files
|
|
let file_types = s:L2U_file_type_regex(get(g:, "latex_to_unicode_file_types", "julia"))
|
|
let file_types_blacklist = s:L2U_file_type_regex(get(g:, "latex_to_unicode_file_types_blacklist", "$^"))
|
|
|
|
if match(&filetype, file_types) < 0 || match(&filetype, file_types_blacklist) >= 0
|
|
if b:l2u_enabled
|
|
call LaTeXtoUnicode#Disable()
|
|
else
|
|
return
|
|
endif
|
|
elseif !b:l2u_enabled
|
|
call LaTeXtoUnicode#Enable()
|
|
endif
|
|
|
|
endfunction
|
|
|
|
function! LaTeXtoUnicode#Enable()
|
|
|
|
if b:l2u_enabled
|
|
return
|
|
end
|
|
|
|
call s:L2U_ResetLastCompletionInfo()
|
|
|
|
let b:l2u_enabled = 1
|
|
|
|
" If we're editing the first file upon opening vim, this will only init the
|
|
" command line mode mapping, and the full initialization will be performed by
|
|
" the autocmd triggered by InsertEnter, defined in /ftdetect.vim.
|
|
" Otherwise, if we're opening a file from within a running vim session, this
|
|
" will actually initialize all the LaTeX-to-Unicode substitutions.
|
|
call LaTeXtoUnicode#Init()
|
|
|
|
return
|
|
|
|
endfunction
|
|
|
|
function! LaTeXtoUnicode#Disable()
|
|
if !b:l2u_enabled
|
|
return
|
|
endif
|
|
let b:l2u_enabled = 0
|
|
call LaTeXtoUnicode#Init()
|
|
return
|
|
endfunction
|
|
|
|
" Translate old options to their new equivalents
|
|
function! s:L2U_deprecated_options()
|
|
for [new, old] in [["latex_to_unicode_tab", "julia_latex_to_unicode"],
|
|
\ ["latex_to_unicode_auto", "julia_auto_latex_to_unicode"],
|
|
\ ["latex_to_unicode_suggestions", "julia_latex_suggestions_enabled"],
|
|
\ ["latex_to_unicode_eager", "julia_latex_to_unicode_eager"]]
|
|
if !has_key(g:, new) && has_key(g:, old)
|
|
exec "let g:" . new . " = g:" . old
|
|
endif
|
|
endfor
|
|
endfunction
|
|
|
|
function! s:L2U_file_type_regex(ft)
|
|
if type(a:ft) == 3
|
|
let file_types = "\\%(" . join(a:ft, "\\|") . "\\)"
|
|
elseif type(a:ft) == 1
|
|
let file_types = a:ft
|
|
else
|
|
echoerr "invalid file_type specification"
|
|
endif
|
|
return "^" . file_types . "$"
|
|
endfunction
|
|
|
|
" Some data used to keep track of the previous completion attempt.
|
|
" Used to detect
|
|
" 1) if we just attempted the same completion, or
|
|
" 2) if backspace was just pressed while completing
|
|
" This function initializes and resets the required info
|
|
|
|
function! s:L2U_ResetLastCompletionInfo()
|
|
let b:l2u_completed_once = 0
|
|
let b:l2u_bs_while_completing = 0
|
|
let b:l2u_last_compl = {
|
|
\ 'line': '',
|
|
\ 'col0': -1,
|
|
\ 'col1': -1,
|
|
\ }
|
|
endfunction
|
|
|
|
" This function only detects whether an exact match is found for a LaTeX
|
|
" symbol in front of the cursor
|
|
function! s:L2U_ismatch()
|
|
let col1 = col('.')
|
|
let l = getline('.')
|
|
let col0 = match(l[0:col1-2], '\\[^[:space:]\\]\+$')
|
|
if col0 == -1
|
|
return 0
|
|
endif
|
|
let base = l[col0 : col1-1]
|
|
return has_key(g:l2u_symbols_dict, base)
|
|
endfunction
|
|
|
|
" Helper function to sort suggestion entries
|
|
function! s:L2U_partmatches_sort(p1, p2)
|
|
return a:p1.word > a:p2.word ? 1 : a:p1.word < a:p2.word ? -1 : 0
|
|
endfunction
|
|
|
|
" Helper function to fix display of Unicode compose characters
|
|
" in the suggestions menu (they are displayed on top of '◌')
|
|
function! s:L2U_fix_compose_chars(uni)
|
|
let u = matchstr(a:uni, '^.')
|
|
let isc = ("\u0300" <= u && u <= "\u036F") ||
|
|
\ ("\u1DC0" <= u && u <= "\u1DFF") ||
|
|
\ ("\u20D0" <= u && u <= "\u20FF") ||
|
|
\ ("\uFE20" <= u && u <= "\uFE2F")
|
|
return isc ? "\u25CC" . a:uni : a:uni
|
|
endfunction
|
|
|
|
" Helper function to find the longest common prefix among
|
|
" partial completion matches (used when suggestions are disabled
|
|
" and in command line mode)
|
|
function! s:L2U_longest_common_prefix(partmatches)
|
|
let common = a:partmatches[0]
|
|
for i in range(1, len(a:partmatches)-1)
|
|
let p = a:partmatches[i]
|
|
if len(p) < len(common)
|
|
let common = common[0 : len(p)-1]
|
|
endif
|
|
for j in range(1, len(common)-1)
|
|
if p[j] != common[j]
|
|
let common = common[0 : j-1]
|
|
break
|
|
endif
|
|
endfor
|
|
endfor
|
|
return common
|
|
endfunction
|
|
|
|
" Omnicompletion function. Besides the usual two-stage omnifunc behaviour,
|
|
" it has the following peculiar features:
|
|
" *) keeps track of the previous completion attempt
|
|
" *) sets some info to be used by the fallback function
|
|
" *) either returns a list of completions if a partial match is found, or a
|
|
" Unicode char if an exact match is found
|
|
" *) forces its way out of completion mode through a hack in some cases
|
|
function! LaTeXtoUnicode#omnifunc(findstart, base)
|
|
if a:findstart
|
|
" first stage
|
|
" avoid infinite loop if the fallback happens to call omnicompletion
|
|
if b:l2u_in_fallback
|
|
let b:l2u_in_fallback = 0
|
|
return -3
|
|
endif
|
|
let b:l2u_in_fallback = 0
|
|
" set info for the callback
|
|
let b:l2u_tab_completing = 1
|
|
let b:l2u_found_completion = 1
|
|
" analyse current line
|
|
let col1 = col('.')
|
|
let l = getline('.')
|
|
let col0 = match(l[0:col1-2], '\\[^[:space:]\\]\+$')
|
|
" compare with previous completion attempt
|
|
let b:l2u_bs_while_completing = 0
|
|
let b:l2u_completed_once = 0
|
|
if col0 == b:l2u_last_compl['col0']
|
|
let prevl = b:l2u_last_compl['line']
|
|
if col1 == b:l2u_last_compl['col1'] && l ==# prevl
|
|
let b:l2u_completed_once = 1
|
|
elseif col1 == b:l2u_last_compl['col1'] - 1 && l ==# prevl[0 : col1-2] . prevl[col1 : -1]
|
|
let b:l2u_bs_while_completing = 1
|
|
endif
|
|
endif
|
|
" store completion info for next attempt
|
|
let b:l2u_last_compl['col0'] = col0
|
|
let b:l2u_last_compl['col1'] = col1
|
|
let b:l2u_last_compl['line'] = l
|
|
" is the cursor right after a backslash?
|
|
let b:l2u_singlebslash = (match(l[0:col1-2], '\\$') >= 0)
|
|
" completion not found
|
|
if col0 == -1
|
|
let b:l2u_found_completion = 0
|
|
call feedkeys(s:l2u_esc_sequence, 'n')
|
|
let col0 = -2
|
|
endif
|
|
return col0
|
|
else
|
|
" read settings (eager mode is implicit when suggestions are disabled)
|
|
let suggestions = get(g:, "latex_to_unicode_suggestions", 1)
|
|
let eager = get(g:, "latex_to_unicode_eager", 1) || !suggestions
|
|
" search for matches
|
|
let partmatches = []
|
|
let exact_match = 0
|
|
for k in keys(g:l2u_symbols_dict)
|
|
if k ==# a:base
|
|
let exact_match = 1
|
|
endif
|
|
if len(k) >= len(a:base) && k[0 : len(a:base)-1] ==# a:base
|
|
let menu = s:L2U_fix_compose_chars(g:l2u_symbols_dict[k])
|
|
if suggestions
|
|
call add(partmatches, {'word': k, 'menu': menu})
|
|
else
|
|
call add(partmatches, k)
|
|
endif
|
|
endif
|
|
endfor
|
|
" exact matches are replaced with Unicode
|
|
" exceptions:
|
|
" *) we reached an exact match by pressing backspace while completing
|
|
" *) the exact match is one among many, and the eager setting is
|
|
" disabled, and it's the first time this completion is attempted
|
|
if exact_match && !b:l2u_bs_while_completing && (len(partmatches) == 1 || eager || b:l2u_completed_once)
|
|
" the completion is successful: reset the last completion info...
|
|
call s:L2U_ResetLastCompletionInfo()
|
|
" ...force our way out of completion mode...
|
|
call feedkeys(s:l2u_esc_sequence, 'n')
|
|
" ...return the Unicode symbol
|
|
return [g:l2u_symbols_dict[a:base]]
|
|
endif
|
|
if !empty(partmatches)
|
|
" here, only partial matches were found; either keep just the longest
|
|
" common prefix, or pass them on
|
|
if !suggestions
|
|
let partmatches = [s:L2U_longest_common_prefix(partmatches)]
|
|
else
|
|
call sort(partmatches, "s:L2U_partmatches_sort")
|
|
endif
|
|
endif
|
|
if empty(partmatches)
|
|
call feedkeys(s:l2u_esc_sequence, 'n')
|
|
let b:l2u_found_completion = 0
|
|
endif
|
|
return partmatches
|
|
endif
|
|
endfunction
|
|
|
|
function! LaTeXtoUnicode#PutLiteral(k)
|
|
call feedkeys(a:k, 'ni')
|
|
return ''
|
|
endfunction
|
|
|
|
" Function which saves the current insert-mode mapping of a key sequence `s`
|
|
" and associates it with another key sequence `k` (e.g. stores the current
|
|
" <Tab> mapping into the Fallback trigger)
|
|
function! s:L2U_SetFallbackMapping(s, k)
|
|
let mmdict = maparg(a:s, 'i', 0, 1)
|
|
if empty(mmdict)
|
|
exe 'inoremap <buffer> ' . a:k . ' ' . a:s
|
|
return
|
|
endif
|
|
let rhs = mmdict["rhs"]
|
|
if rhs =~# '^<Plug>L2U'
|
|
return
|
|
endif
|
|
let pre = '<buffer>'
|
|
if mmdict["silent"]
|
|
let pre = pre . '<silent>'
|
|
endif
|
|
if mmdict["expr"]
|
|
let pre = pre . '<expr>'
|
|
endif
|
|
if mmdict["noremap"]
|
|
let cmd = 'inoremap '
|
|
else
|
|
let cmd = 'imap '
|
|
" This is a nasty hack used to prevent infinite recursion. It's not a
|
|
" general solution.
|
|
if mmdict["expr"]
|
|
let rhs = substitute(rhs, '\c' . a:s, "\<C-R>=LaTeXtoUnicode#PutLiteral('" . a:s . "')\<CR>", 'g')
|
|
endif
|
|
endif
|
|
exe cmd . pre . ' ' . a:k . ' ' . rhs
|
|
endfunction
|
|
|
|
" This is the function which is mapped to <Tab>
|
|
function! LaTeXtoUnicode#Tab()
|
|
" the <Tab> is passed through to the fallback mapping if the completion
|
|
" menu is present, and it hasn't been raised by the L2U tab, and there
|
|
" isn't an exact match before the cursor when suggestions are disabled
|
|
if pumvisible() && !b:l2u_tab_completing && (get(g:, "latex_to_unicode_suggestions", 1) || !s:L2U_ismatch())
|
|
call feedkeys(s:l2u_fallback_trigger)
|
|
return ''
|
|
endif
|
|
" reset the in_fallback info
|
|
let b:l2u_in_fallback = 0
|
|
" temporary change to completeopt to use the `longest` setting, which is
|
|
" probably the only one which makes sense given that the goal of the
|
|
" completion is to substitute the final string
|
|
let b:l2u_backup_commpleteopt = &completeopt
|
|
set completeopt+=longest
|
|
set completeopt-=noinsert
|
|
" invoke omnicompletion; failure to perform LaTeX-to-Unicode completion is
|
|
" handled by the CompleteDone autocommand.
|
|
return "\<C-X>\<C-O>"
|
|
endfunction
|
|
|
|
" This function is called at every CompleteDone event, and is meant to handle
|
|
" the failures of LaTeX-to-Unicode completion by calling a fallback
|
|
function! LaTeXtoUnicode#FallbackCallback()
|
|
if !b:l2u_tab_completing
|
|
" completion was not initiated by L2U, nothing to do
|
|
return
|
|
else
|
|
" completion was initiated by L2U, restore completeopt
|
|
let &completeopt = b:l2u_backup_commpleteopt
|
|
endif
|
|
" at this point L2U tab completion is over
|
|
let b:l2u_tab_completing = 0
|
|
" if the completion was successful do nothing
|
|
if b:l2u_found_completion == 1 || b:l2u_singlebslash == 1
|
|
return
|
|
endif
|
|
" fallback
|
|
let b:l2u_in_fallback = 1
|
|
call feedkeys(s:l2u_fallback_trigger)
|
|
return
|
|
endfunction
|
|
|
|
" This is the function that performs the substitution in command-line mode
|
|
function! LaTeXtoUnicode#CmdTab(triggeredbytab)
|
|
" first stage
|
|
" analyse command line
|
|
let col1 = getcmdpos() - 1
|
|
let l = getcmdline()
|
|
let col0 = match(l[0:col1-1], '\\[^[:space:]\\]\+$')
|
|
let b:l2u_singlebslash = (match(l[0:col1-1], '\\$') >= 0)
|
|
" completion not found
|
|
if col0 == -1
|
|
if a:triggeredbytab
|
|
call feedkeys("\<Tab>", 'nt') " fall-back to the default <Tab>
|
|
endif
|
|
return l
|
|
endif
|
|
let base = l[col0 : col1-1]
|
|
" search for matches
|
|
let partmatches = []
|
|
let exact_match = 0
|
|
for k in keys(g:l2u_symbols_dict)
|
|
if k ==# base
|
|
let exact_match = 1
|
|
endif
|
|
if len(k) >= len(base) && k[0 : len(base)-1] ==# base
|
|
call add(partmatches, k)
|
|
endif
|
|
endfor
|
|
if len(partmatches) == 0
|
|
if a:triggeredbytab
|
|
call feedkeys("\<Tab>", 'nt') " fall-back to the default <Tab>
|
|
endif
|
|
return l
|
|
endif
|
|
" exact matches are replaced with Unicode
|
|
if exact_match
|
|
let unicode = g:l2u_symbols_dict[base]
|
|
if col0 > 0
|
|
let pre = l[0 : col0 - 1]
|
|
else
|
|
let pre = ''
|
|
endif
|
|
let posdiff = col1-col0 - len(unicode)
|
|
call setcmdpos(col1 - posdiff + 1)
|
|
return pre . unicode . l[col1 : -1]
|
|
endif
|
|
" no exact match: complete with the longest common prefix
|
|
let common = s:L2U_longest_common_prefix(partmatches)
|
|
if col0 > 0
|
|
let pre = l[0 : col0 - 1]
|
|
else
|
|
let pre = ''
|
|
endif
|
|
let posdiff = col1-col0 - len(common)
|
|
call setcmdpos(col1 - posdiff + 1)
|
|
return pre . common . l[col1 : -1]
|
|
endfunction
|
|
|
|
" Setup the L2U tab mapping
|
|
function! s:L2U_SetTab(wait_insert_enter)
|
|
if !b:l2u_cmdtab_set && get(g:, "latex_to_unicode_tab", 1) && b:l2u_enabled
|
|
let b:l2u_cmdtab_keys = get(g:, "latex_to_unicode_cmd_mapping", ['<Tab>','<S-Tab>'])
|
|
if type(b:l2u_cmdtab_keys) != type([]) " avoid using v:t_list for backward compatibility
|
|
let b:l2u_cmdtab_keys = [b:l2u_cmdtab_keys]
|
|
endif
|
|
for k in b:l2u_cmdtab_keys
|
|
exec 'cnoremap <buffer> '.k.' <C-\>eLaTeXtoUnicode#CmdTab('.(k ==? '<Tab>').')<CR>'
|
|
endfor
|
|
let b:l2u_cmdtab_set = 1
|
|
endif
|
|
if b:l2u_tab_set
|
|
return
|
|
endif
|
|
" g:did_insert_enter is set from an autocommand in ftdetect
|
|
if a:wait_insert_enter && !get(g:, "did_insert_enter", 0)
|
|
return
|
|
endif
|
|
if !get(g:, "latex_to_unicode_tab", 1) || !b:l2u_enabled
|
|
return
|
|
endif
|
|
|
|
" Backup the previous omnifunc (the check is probably not really needed)
|
|
if get(b:, "prev_omnifunc", "") != "LaTeXtoUnicode#omnifunc"
|
|
let b:prev_omnifunc = &omnifunc
|
|
endif
|
|
setlocal omnifunc=LaTeXtoUnicode#omnifunc
|
|
|
|
call s:L2U_SetFallbackMapping('<Tab>', s:l2u_fallback_trigger)
|
|
imap <buffer> <Tab> <Plug>L2UTab
|
|
inoremap <buffer><expr> <Plug>L2UTab LaTeXtoUnicode#Tab()
|
|
|
|
augroup L2UTab
|
|
autocmd! * <buffer>
|
|
" Every time a completion finishes, the fallback may be invoked
|
|
autocmd CompleteDone <buffer> call LaTeXtoUnicode#FallbackCallback()
|
|
augroup END
|
|
|
|
let b:l2u_tab_set = 1
|
|
endfunction
|
|
|
|
" Revert the LaTeX-to-Unicode tab mapping settings
|
|
function! s:L2U_UnsetTab()
|
|
if b:l2u_cmdtab_set
|
|
for k in b:l2u_cmdtab_keys
|
|
exec 'cunmap <buffer> '.k
|
|
endfor
|
|
let b:l2u_cmdtab_set = 0
|
|
endif
|
|
if !b:l2u_tab_set
|
|
return
|
|
endif
|
|
exec "setlocal omnifunc=" . get(b:, "prev_omnifunc", "")
|
|
iunmap <buffer> <Tab>
|
|
if empty(maparg("<Tab>", "i"))
|
|
call s:L2U_SetFallbackMapping(s:l2u_fallback_trigger, '<Tab>')
|
|
endif
|
|
iunmap <buffer> <Plug>L2UTab
|
|
exe 'iunmap <buffer> ' . s:l2u_fallback_trigger
|
|
augroup L2UTab
|
|
autocmd! * <buffer>
|
|
augroup END
|
|
let b:l2u_tab_set = 0
|
|
endfunction
|
|
|
|
" Function which looks for viable LaTeX-to-Unicode supstitutions as you type
|
|
function! LaTeXtoUnicode#AutoSub(...)
|
|
let vc = a:0 == 0 ? v:char : a:1
|
|
let col1 = col('.')
|
|
let lnum = line('.')
|
|
if col1 == 1
|
|
if a:0 > 1
|
|
call feedkeys(a:2, 'n')
|
|
endif
|
|
return ''
|
|
endif
|
|
let bs = (vc != "\n")
|
|
let l = getline(lnum)[0 : col1-1-bs] . v:char
|
|
let col0 = match(l, '\\\%([_^]\?[A-Za-z]\+\%' . col1 . 'c\%([^A-Za-z]\|$\)\|[_^]\%([0-9()=+-]\)\%' . col1 .'c\%(.\|$\)\)')
|
|
if col0 == -1
|
|
if a:0 > 1
|
|
call feedkeys(a:2, 'n')
|
|
endif
|
|
return ''
|
|
endif
|
|
let base = l[col0 : -1-bs]
|
|
let unicode = get(g:l2u_symbols_dict, base, '')
|
|
if empty(unicode)
|
|
if a:0 > 1
|
|
call feedkeys(a:2, 'n')
|
|
endif
|
|
return ''
|
|
endif
|
|
call feedkeys("\<C-G>u", 'n')
|
|
call feedkeys(repeat("\b", len(base) + bs) . unicode . vc . s:l2u_esc_sequence, 'nt')
|
|
call feedkeys("\<C-G>u", 'n')
|
|
return ''
|
|
endfunction
|
|
|
|
" Setup the auto as-you-type LaTeX-to-Unicode substitution
|
|
function! s:L2U_SetAutoSub(wait_insert_enter)
|
|
if b:l2u_autosub_set
|
|
return
|
|
endif
|
|
" g:did_insert_enter is set from an autocommand in ftdetect
|
|
if a:wait_insert_enter && !get(g:, "did_insert_enter", 0)
|
|
return
|
|
endif
|
|
if !get(g:, "latex_to_unicode_auto", 0) || !b:l2u_enabled
|
|
return
|
|
endif
|
|
" Viable substitutions are searched at every character insertion via the
|
|
" autocmd InsertCharPre. The <Enter> key does not seem to be catched in
|
|
" this way though, so we use a mapping for that case.
|
|
imap <buffer> <CR> <Plug>L2UAutoSub
|
|
inoremap <buffer><expr> <Plug>L2UAutoSub LaTeXtoUnicode#AutoSub("\n", "\<CR>")
|
|
|
|
augroup L2UAutoSub
|
|
autocmd! * <buffer>
|
|
autocmd InsertCharPre <buffer> call LaTeXtoUnicode#AutoSub()
|
|
augroup END
|
|
|
|
let b:l2u_autosub_set = 1
|
|
endfunction
|
|
|
|
" Revert the auto LaTeX-to-Unicode settings
|
|
function! s:L2U_UnsetAutoSub()
|
|
if !b:l2u_autosub_set
|
|
return
|
|
endif
|
|
|
|
iunmap <buffer> <CR>
|
|
iunmap <buffer> <Plug>L2UAutoSub
|
|
augroup L2UAutoSub
|
|
autocmd! * <buffer>
|
|
augroup END
|
|
let b:l2u_autosub_set = 0
|
|
endfunction
|
|
|
|
function! s:L2U_SetKeymap()
|
|
if !b:l2u_keymap_set && get(g:, "latex_to_unicode_keymap", 0) && b:l2u_enabled
|
|
setlocal keymap=latex2unicode
|
|
let b:l2u_keymap_set = 1
|
|
endif
|
|
endfunction
|
|
|
|
function! s:L2U_UnsetKeymap()
|
|
if !b:l2u_keymap_set
|
|
return
|
|
endif
|
|
setlocal keymap=
|
|
let b:l2u_keymap_set = 0
|
|
endfunction
|
|
|
|
" Initialization. Can be used to re-init when global settings have changed.
|
|
function! LaTeXtoUnicode#Init(...)
|
|
let wait_insert_enter = a:0 > 0 ? a:1 : 1
|
|
|
|
if !wait_insert_enter
|
|
augroup L2UInit
|
|
autocmd!
|
|
augroup END
|
|
endif
|
|
|
|
call s:L2U_UnsetTab()
|
|
call s:L2U_UnsetAutoSub()
|
|
call s:L2U_UnsetKeymap()
|
|
|
|
call s:L2U_SetTab(wait_insert_enter)
|
|
call s:L2U_SetAutoSub(wait_insert_enter)
|
|
call s:L2U_SetKeymap()
|
|
endfunction
|
|
|
|
function! LaTeXtoUnicode#Toggle()
|
|
call s:L2U_Setup()
|
|
if b:l2u_enabled
|
|
call LaTeXtoUnicode#Disable()
|
|
echo "LaTeX-to-Unicode disabled"
|
|
else
|
|
call LaTeXtoUnicode#Enable()
|
|
echo "LaTeX-to-Unicode enabled"
|
|
endif
|
|
return
|
|
endfunction
|
|
|
|
endif
|