YinYangのFilterクラス for codeReview.cafe

part-of-yinyang.coffee

# [Filters]
# thru filter
class YinYang.filter
	constructor: (@args) ->
	process: (val) -> val

# default filter
# http://osscafe.github.com/yinyang/english/api.html#filter|default
class YinYang.filters.default extends YinYang.filter
	process: (val) -> val || @args[0] || ''

# nl2br filter
# http://osscafe.github.com/yinyang/english/api.html#filter|default
class YinYang.filters.nl2br extends YinYang.filter
	process: (val) -> val.replace /\n\r|\n|\r/gim, '<br />'

# truncate filter
# http://osscafe.github.com/yinyang/english/api.html#filter|default
class YinYang.filters.truncate extends YinYang.filter
	process: (val) ->
		max = @args[0] || 80
		txt = @args[1] || '...'
		if val.length > max then val.substring(0, max - txt.length) + txt else val