re

Overview ¶

Package re defines regular expression functions, it's intended to be a drop-in subset of python's re module for starlark: https://docs.python.org/3/library/re.html

TODO (b5): compile search, fullmatch, findall, finditer, subn, escape

outline: re
  re defines regular expression functions, it's intended to be a drop-in
  subset of python's re module for starlark: https://docs.python.org/3/library/re.html

  functions:
    findall(pattern, text, flags=0)
      Returns all non-overlapping matches of pattern in string, as a list of strings.
      The string is scanned left-to-right, and matches are returned in the order found.
      If one or more groups are present in the pattern, return a list of groups;
      this will be a list of tuples if the pattern has more than one group.
      Empty matches are included in the result.
      params:
        pattern string
          regular expression pattern string
        text string
          string to find within
        flags int
          integer flags to control regex behaviour. reserved for future use
    split(pattern, text, maxsplit=0, flags=0)
      Split text by the occurrences of pattern. If capturing parentheses are used in pattern,
      then the text of all groups in the pattern are also returned as part of the resulting list.
      If maxsplit is nonzero, at most maxsplit splits occur, and the remainder of the string
      is returned as the final element of the list.
      params:
        pattern string
          regular expression pattern string
        text string
          input string to split
        maxsplit int
          maximum number of splits to make. default 0 splits all matches
        flags int
          integer flags to control regex behaviour. reserved for future use
    sub(pattern, repl, text, count=0, flags=0)
      Return the string obtained by replacing the leftmost non-overlapping occurrences of pattern
      in string by the replacement repl. If the pattern isn’t found, string is returned unchanged.
      repl can be a string or a function; if it is a string, any backslash escapes in it are processed.
      That is, \n is converted to a single newline character, \r is converted to a carriage return, and so forth.
      params:
        pattern string
          regular expression pattern string
        repl string
          string to replace matches with
        text string
          input string to replace
        count int
          number of replacements to make, default 0 means replace all matches
        flags int
          integer flags to control regex behaviour. reserved for future use