added indent support

Author: a-programmer-person

indent/twig.vim

@@ -0,0 +1,76 @@
+if exists("b:ran_once")
+	finish
+endif
+
+let b:ran_once = 1
+
+setlocal indentexpr=GetTwigIndent()
+
+fun! GetTwigIndent()
+	let currentLineNumber = v:lnum
+	let currentLine = getline(currentLineNumber)
+	let previousLineNumber = prevnonblank(currentLineNumber - 1)
+	let previousLine = getline(previousLineNumber)
+
+	if (previousLine =~ s:startStructures || previousLine =~ s:middleStructures) && (currentLine !~ s:endStructures && currentLine !~ s:middleStructures)
+		echo "below start or middle"
+		return indent(previousLineNumber) + &shiftwidth
+	elseif currentLine =~ s:endStructures || currentLine =~ s:middleStructures
+		let previousOpenStructureNumber = s:FindPreviousOpenStructure(0, 0, currentLineNumber)
+		let previousOpenStructureLine = getline(previousOpenStructureNumber)
+		echo "finding previous open structure"
+		return indent(previousOpenStructureNumber)
+	endif
+
+	echo "none"
+
+	return HtmlIndent()
+endf
+
+
+function! s:FindPreviousOpenStructure(countOpen, countClosed, lineNumber)
+	echo a:countOpen . a:countClosed . a:lineNumber
+	if a:countOpen > a:countClosed
+		return a:lineNumber
+	elseif a:lineNumber <= 0
+		return 0
+	endif
+
+	let currentLineNumber = a:lineNumber - 1
+	let currentLine = getline(currentLineNumber)
+	if currentLine =~ s:startStructures
+		return s:FindPreviousOpenStructure(a:countOpen + 1, a:countClosed, currentLineNumber)
+	elseif currentLine =~ s:endStructures
+		return s:FindPreviousOpenStructure(a:countOpen, a:countClosed + 1, currentLineNumber)
+	else
+		return s:FindPreviousOpenStructure(a:countOpen, a:countClosed, currentLineNumber)
+	endif
+
+endfunction
+
+function! s:StartStructure(name)
+	return '{%\s*' . a:name . '.*%}'
+endfunction
+
+function! s:EndStructure(name)
+	return '{%\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), '\|')
+	let s:allStructures = '{%.*%}'
+endfun
+
+call s:BuildStructures()