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feat: allow loading preprocessors only if the file uses them

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When g:vue_pre_processors is set to 'auto', register pre-processors
automatically based on the file's contents, when the file is first
opened.

This works towards #128
This commit is contained in:
Adriaan Zonnenberg
2019-07-29 22:05:10 +02:00
parent 00d77ae375
commit af6d92c47d
1 changed files with 26 additions and 16 deletions
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syntax/vue.vim
+26 -16
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@@ -22,10 +22,21 @@ function! s:attr(name, value)
return a:name . '=\("\|''\)[^\1]*' . a:value . '[^\1]*\1' return a:name . '=\("\|''\)[^\1]*' . a:value . '[^\1]*\1'
endfunction endfunction
"" function! s:should_register(language, start_pattern)
" Check whether a syntax file for a given {language} exists. " Check whether a syntax file for {language} exists
function! s:syntax_available(language) if empty(globpath(&runtimepath, 'syntax/' . a:language . '.vim'))
return !empty(globpath(&runtimepath, 'syntax/' . a:language . '.vim')) return 0
endif
if exists('g:vue_pre_processors')
if type(g:vue_pre_processors) == v:t_list
return index(g:vue_pre_processors, s:language.name) != -1
elseif g:vue_pre_processors is# 'auto'
return search(a:start_pattern, 'n') != 0
endif
endif
return 1
endfunction endfunction
let s:languages = [ let s:languages = [
@@ -42,19 +53,18 @@ let s:languages = [
\ ] \ ]
for s:language in s:languages for s:language in s:languages
if !exists("g:vue_pre_processors") || index(g:vue_pre_processors, s:language.name) != -1 let s:attr_pattern = has_key(s:language, 'attr_pattern') ? s:language.attr_pattern : s:attr('lang', s:language.name)
let s:attr_pattern = has_key(s:language, 'attr_pattern') ? s:language.attr_pattern : s:attr('lang', s:language.name) let s:start_pattern = '<' . s:language.tag . '\>\_[^>]*' . s:attr_pattern . '\_[^>]*>'
if s:syntax_available(s:language.name) if s:should_register(s:language.name, s:start_pattern)
execute 'syntax include @' . s:language.name . ' syntax/' . s:language.name . '.vim' execute 'syntax include @' . s:language.name . ' syntax/' . s:language.name . '.vim'
unlet! b:current_syntax unlet! b:current_syntax
execute 'syntax region vue_' . s:language.name execute 'syntax region vue_' . s:language.name
\ 'keepend' \ 'keepend'
\ 'start=/<' . s:language.tag . '\>\_[^>]*' . s:attr_pattern . '\_[^>]*>/' \ 'start=/' . s:start_pattern . '/'
\ 'end="</' . s:language.tag . '>"me=s-1' \ 'end="</' . s:language.tag . '>"me=s-1'
\ 'contains=@' . s:language.name . ',vueSurroundingTag' \ 'contains=@' . s:language.name . ',vueSurroundingTag'
\ 'fold' \ 'fold'
endif
endif endif
endfor endfor