rPossessive constant Null safety

String const rPossessive

Selects all possessive apostrophes:

  • selects all instances of "'s" or "'S" where U+0027 is followed by an "s", preceded by a letter or digit and followed by a character other than a letter or digit.
  • selects all instances of "'" where U+0027 is preceded by "s" or "S" and followed by a character other than a letter or digit.

Implementation

static const rPossessive =
    r"(?<=[a-zA-Z0-9])('s|'S)(?=[^a-zA-Z0-9])|(?<=[sS])(')(?=[^a-zA-Z])";