Module: Gitlab::FrontMatter

Defined in:

lib/gitlab/front_matter.rb

Constant Summary

DELIM_LANG =

{
  '---' => 'yaml',
  '+++' => 'toml',
  ';;;' => 'json'
}.freeze

DELIM_UNTRUSTED =

"(?:#{Gitlab::FrontMatter::DELIM_LANG.keys.map { |x| RE2::Regexp.escape(x) }.join('|')})".freeze

PATTERN_UNTRUSTED =

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

"\\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)"

PATTERN_UNTRUSTED_REGEX =

rubocop:enable Style/LineEndConcatenation rubocop:enable Style/StringConcatenation

Gitlab::UntrustedRegexp.new(PATTERN_UNTRUSTED, multiline: true).freeze