String utils¶
- re_find(regex, s, flags=0)¶
Finds regex in s, returning the match in most simple form guessed by captures in given regular expression:
Captures Return value no captures a matched string single positional capture a substring matched by capture only positional captures a tuple of substrings for captures only named captures a dict of substrings for captures mixed pos/named captures a match object Returns None on mismatch.
# Find first number in a line silent(int)(re_find(r'\d+', line)) # Find number of men in a line re_find(r'(\d+) m[ae]n', line) # Parse uri into nice dict re_find(r'^/post/(?P<id>\d+)/(?P<action>\w+)$', uri)
- re_test(regex, s, flags=0)¶
Tests whether regex can be found in s.
- re_all(regex, s, flags=0)¶
- re_iter(regex, s, flags=0)¶
Returns a list or iterator of all matches of regex in s. Matches are presented in most simple form possible, see table in re_find() docs.
# A fast and dirty way to parse ini section into dict dict(re_iter('(\w+)=(\w+)', ini_text))
- re_finder(regex, flags=0)¶
Returns a function that calls re_find() for it’s sole argument. It’s main purpose is quickly constructing mapper functions for map() and friends.
See also Extended function semantics.
- re_tester(regex, flags=0)¶
Returns a function that calls re_test() for it’s sole argument. Aimed at quick construction of predicates for use in filter() and friends.
See also Extended function semantics.
- str_join([sep="", ]seq)¶
Joins sequence by sep. Same as sep.join(seq), but forcefully converts all elements to separator type, str by default.
See also joining().
- cut_prefix(s, prefix)¶
Cuts prefix from given string if it’s present.
- cut_suffix(s, suffix)¶
Cuts suffix from given string if it’s present.