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Size: 1.79 KB
Versions: 10
Compression:
Stored size: 1.79 KB
Contents
# frozen_string_literal: true
class SiteDiff
class Sanitizer
# Regular Expression Object.
class Regexp
##
# Creates a RegExp object.
def initialize(rule)
@rule = rule
end
##
# Whether the RegExp has a selector.
def selector?
false
end
##
# Whether the RegExp applies to the given markup.
def applies?(html, _node)
applies_to_string?(html)
end
##
# Applies the RegExp to the markup.
def apply(html)
gsub!(html)
end
##
# Creates a RegExp object as per rule.
def self.create(rule)
rule['selector'] ? WithSelector.new(rule) : new(rule)
end
##
# A RegExp with selector.
class WithSelector < Regexp
##
# Whether the RegExp has a selector.
def selector?
true
end
##
# TODO: Document what this method does.
def contexts(node, &block)
selectors = @rule['selector']
node.css(selectors).each(&block)
end
##
# Whether the RegExp applies to the given markup.
def applies?(_html, node)
enum_for(:contexts, node).any? { |e| applies_to_string?(e.to_html) }
end
##
# Applies the RegExp to the markup.
def apply(node)
contexts(node) { |e| e.replace(gsub!(e.to_html)) }
end
end
protected
def gsub!(str)
re = ::Regexp.new(@rule['pattern'])
sub = @rule['substitute'] || ''
# Expecting a mutation here. Do not reassign the variable str
# for the purpose of removing UTF-8 encoding errors.
str.gsub!(re, sub)
str
end
def applies_to_string?(str)
gsub!(str.dup) != str
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems