43 lines
1.6 KiB
Ruby
43 lines
1.6 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
module Gitlab
|
|
module FrontMatter
|
|
DELIM_LANG = {
|
|
'---' => 'yaml',
|
|
'+++' => 'toml',
|
|
';;;' => 'json'
|
|
}.freeze
|
|
|
|
DELIM_UNTRUSTED = "(?:#{Gitlab::FrontMatter::DELIM_LANG.keys.map { |x| RE2::Regexp.escape(x) }.join('|')})".freeze
|
|
|
|
# Original pattern:
|
|
# \A(?<encoding>[^\r\n]*coding:[^\r\n]*\R)? # optional encoding line
|
|
# (?<before>\s*)
|
|
# ^(?<delim>#{DELIM})[ \t]*(?<lang>\S*)\R # opening front matter marker (optional language specifier)
|
|
# (?<front_matter>.*?) # front matter block content (not greedy)
|
|
# ^(\k<delim> | \.{3}) # closing front matter marker
|
|
# [^\S\r\n]*(\R|\z)
|
|
# rubocop:disable Style/StringConcatenation
|
|
# rubocop:disable Style/LineEndConcatenation
|
|
PATTERN_UNTRUSTED =
|
|
# optional encoding line
|
|
"\\A(?P<encoding>[^\\r\\n]*coding:[^\\r\\n]*#{::Gitlab::UntrustedRegexp::BACKSLASH_R})?" +
|
|
'(?P<before>\s*)' +
|
|
|
|
# opening front matter marker (optional language specifier)
|
|
"^(?P<delim>#{DELIM_UNTRUSTED})[ \\t]*(?P<lang>\\S*)#{::Gitlab::UntrustedRegexp::BACKSLASH_R}" +
|
|
|
|
# front matter block content (not greedy)
|
|
'(?P<front_matter>(?:\n|.)*?)' +
|
|
|
|
# closing front matter marker
|
|
"^((?P<delim_closing>#{DELIM_UNTRUSTED})|\\.{3})" +
|
|
"[^\\S\\r\\n]*(#{::Gitlab::UntrustedRegexp::BACKSLASH_R}|\\z)"
|
|
# rubocop:enable Style/LineEndConcatenation
|
|
# rubocop:enable Style/StringConcatenation
|
|
|
|
PATTERN_UNTRUSTED_REGEX =
|
|
Gitlab::UntrustedRegexp.new(PATTERN_UNTRUSTED, multiline: true).freeze
|
|
end
|
|
end
|