On Fri, Dec 9, 2016 at 12:34 PM, BartC <b...@freeuk.com> wrote: > With a case-sensitive file system, how do you search only for 'harry', not > knowing what combinations of upper and lower case have been used? (It's a > good thing Google search isn't case sensitive!)
This is handled by "case correlations", which aren't quite the same as case conversions. In Python, that's the .casefold() method. You casefold the string "harry", and then casefold every file name that might potentially match, and see if they become the same. Taking my original example string: >>> "ßẞıİÅσςσ".casefold() 'ssssıi̇åσσσ' Any string that casefolds to that same string should be considered a match. This does NOT stop you from having multiple such files in the directory. >> much less other European languages (Russian, Greek), and >> certainly I had no way of working with non-alphabetic languages >> (Chinese, Japanese). Nor right-to-left languages (Hebrew, Arabic). > > > Did you really need to work with all those languages, or is this a generic > 'I'. In the 90s? No, I didn't, otherwise I'd have had a lot of trouble. Today? Yep. I can, and I do. Not as much as I work with English, but I definitely do support them. Took a good bit of work to make some of the RTL text behaviours the way I wanted them, but everything else was pretty smooth. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
