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On Wednesday 14 November 2007 01:33:54 Jan Kundrát wrote: |
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> Steve Long wrote: |
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> >> Is [[:alpha:]] locale-safe? |
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> > |
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> > Yes, all POSIX character classes listed here are: |
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> > http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap07.html |
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> |
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> Thanks for a nice link. If I read section 7.3.1 correctly, [[:alpha:]] |
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> always contains those letters, but might contain more, depending on the |
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> locale. So it's probably very minor point, but as long as the script |
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> runs with user-provided locale, one should be explicit here. Or am I |
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> missing something here? |
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If you think [a-zA-Z] is being explicit then you are clearly missing |
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something. E.g. if you google for the estonian alphabet you'll see a lot of |
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ansi letters are after z in that alphabet. So on estonian locales those |
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letters won't be included in [a-z] but they will be included in [:alpha:]. |
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-- |
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Bo Andresen |
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