lib/haml/compiler/comment_compiler.rb
# frozen_string_literal: true
module Haml
class Compiler
class CommentCompiler
def compile(node, &block)
if node.value[:conditional]
compile_conditional_comment(node, &block)
else
compile_html_comment(node, &block)
end
end
private
def compile_html_comment(node, &block)
if node.children.empty?
[:html, :comment, compile_text(node)]
else
[:html, :comment, yield(node)]
end
end
def compile_conditional_comment(node, &block)
condition = node.value[:conditional]
if node.value[:conditional] =~ /\A\[(\[*[^\[\]]+\]*)\]/
condition = $1
end
content =
if node.children.empty?
compile_text(node)
else
yield(node)
end
[:html, :condcomment, condition, content, node.value[:revealed]]
end
def compile_text(node)
text =
if node.value[:parse]
# Just always escaping the result for safety. We could respect
# escape_html, but I don't see any use case for it.
[:escape, true, [:dynamic, node.value[:text]]]
else
[:static, node.value[:text]]
end
[:multi, [:static, ' '], text, [:static, ' ']]
end
end
end
end