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Versions: 2
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Contents
module Liquor # Holds variables. Variables are only loaded "just in time" # and are not evaluated as part of the render stage # # {{ monkey }} # {{ user.name }} # # Variables can be combined with filters: # # {{ user | link }} # class Variable FilterParser = /(?:#{FilterSeparator}|(?:\s*(?!(?:#{FilterSeparator}))(?:(?:#{StrictQuotedFragment})(?:#{FirstFilterArgument}(?:#{OtherFilterArgument})*)?|\S+)\s*)+)/ attr_accessor :filters, :name def initialize(markup) @markup = markup @name = nil @filters = [] if match = markup.match(/\s*(#{QuotedFragment})(.*)/) @name = match[1] if match[2].match(/#{FilterSeparator}\s*(.*)/) filters = Regexp.last_match(1).scan(FilterParser) filters.each do |f| if matches = f.match(/\s*(\w+)/) filtername = matches[1] filterargs = f.scan(/(?:#{FilterArgumentSeparator}|#{ArgumentSeparator})\s*(#{QuotedFragment})/).flatten @filters << [filtername.to_sym, filterargs] end end end end end def render(context) return '' if @name.nil? @filters.inject(context[@name]) do |output, filter| filterargs = filter[1].to_a.collect do |a| context[a] end begin context.invoke(filter[0], output, *filterargs) rescue FilterNotFound raise FilterNotFound, "Error - filter '#{filter[0]}' in '#{@markup.strip}' could not be found." end end end end end
Version data entries
2 entries across 2 versions & 1 rubygems
Version | Path |
---|---|
liquor-0.1.1 | lib/liquor/variable.rb |
liquor-0.1.0 | lib/liquor/variable.rb |