On 2019-03-24 08:42, Alex Grigoryev wrote:
Following the discussion here
<https://link.getmailspring.com/link/7d84d131-65b6-4ef7-9c43-51957f9df...@getmailspring.com/0?redirect=https%3A%2F%2Fbugs.python.org%2Fissue36410&recipient=cHl0aG9uLWlkZWFzQHB5dGhvbi5vcmc%3D>
I propose to add 3 new string methods: str.trim, str.ltrim, str.rtrim
Another option would be to change API for str.split method to work
correctly with sequences.
In [1]: def ltrim(s, seq):
...: return s[len(seq):] if s.startswith(seq) else s
...:
This has a subtle bug:
In [2]: def rtrim(s, seq):
...: return s[:-len(seq)] if s.endswith(seq) else s
...:
If len(seq) == 0, then rtrim will return ''.
It needs to be:
def rtrim(s, seq):
return s[ : len(s) - len(seq)] if s.endswith(seq) else s
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