class Inkcite::Renderer::Property
Constants
- DOLLAR
- EQUALS
- SLASH
- VARIABLE_REGEX
Public Instance Methods
render(tag, opt, ctx)
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# File lib/inkcite/renderer/property.rb, line 5 def render tag, opt, ctx html = ctx[tag] if html.nil? ctx.error 'Unknown tag or property', { :tag => tag, :opt => "[#{opt.to_query}]" } return nil end # True if this is a opening tag - e.g. {feature ...}, not {/feature} is_open_tag = !tag.starts_with?(SLASH) # When a custom opening tag is encountered, if there is a corresponding # closing tag, we'll save the options provided at open so that they # can be pop'd by the closing tag and used in the closing HTML. if is_open_tag # Verify that a closing tag has been defined and push the opts # onto the stack. No need to push opts and pollute the stack if # there is no closing tag to take advantage of them. close_tag = "#{SLASH}#{tag}" ctx.tag_stack(tag) << opt unless ctx[close_tag].nil? else # Chop off the forward slash to reveal the original open tag. Then # grab the tag stack for said open tag. Pop the most recently provided # opts off the stack so those values are available again. open_tag = tag[1..-1] tag_stack = ctx.tag_stack(open_tag) # The provided opts take precedence over the ones passed to the open tag. if tag_stack # Need to verify that there are open opts to pop - if a tag is closed that # hasn't been opened (e.g. {h3}...{/h2}) the open_opt can be nil. open_opt = tag_stack.pop opt = open_opt.merge(opt) if open_opt end end # Need to clone the property - otherwise, we modify the original property. # Which is bad. html = html.clone Parser.each html, VARIABLE_REGEX do |pair| # Split the declaration on the equals sign. variable, default = pair.split(EQUALS, 2) # Check to see if the variable has been defined in the parameters. If so, use that # value - otherwise, inherit the default. (opt[variable.to_sym] || default).to_s end end