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if !has_key(g:polyglot_is_disabled, 'twig')
finish
endif
if exists("b:ran_once")
finish
endif
let b:ran_once = 1
let s:baseIndentExpr=&indentexpr
setlocal indentexpr=GetTwigIndent(v:lnum)
fun! GetTwigIndent(currentLineNumber)
let currentLine = getline(a:currentLineNumber)
let previousLineNumber = prevnonblank(a:currentLineNumber - 1)
let previousLine = getline(previousLineNumber)
if (previousLine =~ s:startStructures || previousLine =~ s:middleStructures) && (currentLine !~ s:endStructures && currentLine !~ s:middleStructures)
return indent(previousLineNumber) + &shiftwidth
elseif currentLine =~ s:endStructures || currentLine =~ s:middleStructures
let previousOpenStructureNumber = s:FindPreviousOpenStructure(a:currentLineNumber)
let previousOpenStructureLine = getline(previousOpenStructureNumber)
return indent(previousOpenStructureNumber)
endif
return s:CallBaseIndent()
endf
function! s:CallBaseIndent()
exe 'redir => s:outputOfBaseIndent'
exe 'silent echo ' . s:baseIndentExpr
exe 'redir END'
return split(s:outputOfBaseIndent)[0]
endf
function! s:FindPreviousOpenStructure(lineNumber)
let countOpen = 0
let countClosed = 0
let lineNumber = a:lineNumber
while lineNumber != 1 && countOpen <= countClosed
let lineNumber -= 1
let currentLine = getline(lineNumber)
if currentLine =~ s:startStructures
let countOpen += 1
elseif currentLine =~ s:endStructures
let countClosed += 1
endif
endwhile
return lineNumber
endfunction
function! s:StartStructure(name)
return '^\s*{%\s*' . a:name . '.*%}'
endfunction
function! s:EndStructure(name)
return '^\s*{%\s*end' . a:name . '.*%}'
endfunction
function! s:Map(Fun, list)
if len(a:list) == 0
return []
else
return [a:Fun(a:list[0])] + s:Map(a:Fun, a:list[1:])
endif
endfunction
fun! s:BuildStructures()
let structures = ['if','for','block']
let mStructures = ['elseif','else']
let s:startStructures = join(s:Map(function('s:StartStructure'), structures), '\|')
let s:endStructures = join(s:Map(function('s:EndStructure'), structures), '\|')
let s:middleStructures = join(s:Map(function('s:StartStructure'), mStructures), '\|')
endfun
call s:BuildStructures()
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