Module: LinkifyRe

Included in:: Linkify

Defined in:: lib/linkify-it-rb/re.rb

Constant Summary collapse

SRC_ANY = Use direct extract instead of ‘regenerate` to reduce size

UCMicro::Properties::Any::REGEX.source

SRC_CC =

UCMicro::Categories::Cc::REGEX.source

SRC_Z =

UCMicro::Categories::Z::REGEX.source

SRC_P =

UCMicro::Categories::P::REGEX.source

SRC_Z_P_CC = pZPCc (white spaces + control + punctuation)

[ SRC_Z, SRC_P, SRC_CC ].join('|')

SRC_Z_CC = pZCc (white spaces + control)

[ SRC_Z, SRC_CC ].join('|')

SRC_PSEUDO_LETTER = All possible word characters (everything without punctuation, spaces & controls) Defined via punctuation & spaces to save space Should be something like pLNSM (w but without ‘_`)

'(?:(?!' + SRC_Z_P_CC + ')' + SRC_ANY + ')'

SRC_PSEUDO_LETTER_NON_D = The same as above but without [0-9]

'(?:(?![0-9]|' + SRC_Z_P_CC + ')' + SRC_ANY + ')'

SRC_IP4 =

'(?:(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)'

SRC_AUTH =

'(?:(?:(?!' + SRC_Z_CC + ').)+@)?'

SRC_PORT =

'(?::(?:6(?:[0-4]\\d{3}|5(?:[0-4]\\d{2}|5(?:[0-2]\\d|3[0-5])))|[1-5]?\\d{1,4}))?'

SRC_HOST_TERMINATOR =

'(?=$|' + SRC_Z_P_CC + ')(?!-|_|:\\d|\\.-|\\.(?!$|' + SRC_Z_P_CC + '))'

SRC_PATH =

'(?:' +
  '[/?#]' +
    '(?:' +
      '(?!' + SRC_Z_CC + '|[()\\[\\]{}.,"\'?!\\-]).|' +
      '\\[(?:(?!' + SRC_Z_CC + '|\\]).)*\\]|' +
      '\\((?:(?!' + SRC_Z_CC + '|[)]).)*\\)|' +
      '\\{(?:(?!' + SRC_Z_CC + '|[}]).)*\\}|' +
      '\\"(?:(?!' + SRC_Z_CC + '|["]).)+\\"|' +
      "\\'(?:(?!" + SRC_Z_CC + "|[']).)+\\'|" +
      "\\'(?=" + SRC_PSEUDO_LETTER + ').|' +  # allow `I'm_king` if no pair found
      '\\.{2,3}[a-zA-Z0-9%]|' + # github has ... in commit range links. Restrict to
                                # english & percent-encoded only, until more examples found.
      '\\.(?!' + SRC_Z_CC + '|[.]).|' +
      '\\-(?!' + SRC_Z_CC + '|--(?:[^-]|$))(?:[-]+|.)|' +  # `---` => long dash, terminate
      '\\,(?!' + SRC_Z_CC + ').|' +      # allow `,,,` in paths
      '\\!(?!' + SRC_Z_CC + '|[!]).|' +
      '\\?(?!' + SRC_Z_CC + '|[?]).' +
    ')+' +
  '|\\/' +
')?'

SRC_EMAIL_NAME =

'[\\-;:&=\\+\\$,\\"\\.a-zA-Z0-9_]+'

SRC_XN =

'xn--[a-z0-9\\-]{1,59}'

SRC_DOMAIN_ROOT = More to read about domain names serverfault.com/questions/638260/

'(?:' +
  SRC_XN +
  '|' +
  SRC_PSEUDO_LETTER_NON_D + '{1,63}' +
')'

SRC_DOMAIN =

'(?:' +
  SRC_XN +
  '|' +
  '(?:' + SRC_PSEUDO_LETTER + ')' +
  '|' +
  # don't allow `--` in domain names, because:
  # - that can conflict with markdown &mdash; / &ndash;
  # - nobody use those anyway
  '(?:' + SRC_PSEUDO_LETTER + '(?:-(?!-)|' + SRC_PSEUDO_LETTER + '){0,61}' + SRC_PSEUDO_LETTER + ')' +
')'

SRC_HOST =

'(?:' +
  SRC_IP4 +
'|' +
  '(?:(?:(?:' + SRC_DOMAIN + ')\\.)*' + SRC_DOMAIN_ROOT + ')' +
')'

TPL_HOST_FUZZY =

'(?:' +
  SRC_IP4 +
'|' +
  '(?:(?:(?:' + SRC_DOMAIN + ')\\.)+(?:%TLDS%))' +
')'

SRC_HOST_STRICT =

SRC_HOST + SRC_HOST_TERMINATOR

TPL_HOST_FUZZY_STRICT =

TPL_HOST_FUZZY + SRC_HOST_TERMINATOR

SRC_HOST_PORT_STRICT =

SRC_HOST + SRC_PORT + SRC_HOST_TERMINATOR

TPL_HOST_PORT_FUZZY_STRICT =

TPL_HOST_FUZZY + SRC_PORT + SRC_HOST_TERMINATOR

TPL_HOST_FUZZY_TEST = Rude test fuzzy links by host, for quick deny

'localhost|\\.\\d{1,3}\\.|(?:\\.(?:%TLDS%)(?:' + SRC_Z_P_CC + '|$))'

TPL_EMAIL_FUZZY =

'(^|>|' + SRC_Z_CC + ')(' + SRC_EMAIL_NAME + '@' + TPL_HOST_FUZZY_STRICT + ')'

TPL_LINK_FUZZY =

'(^|(?![.:/\\-_@])(?:[$+<=>^`|]|' + SRC_Z_P_CC + '))' +
'((?![$+<=>^`|])' + TPL_HOST_PORT_FUZZY_STRICT + SRC_PATH + ')'