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Feature #11094
closedRemove traces of 6-byte UTF-8
Status:
Closed
Assignee:
-
Target version:
-
Description
UTF-8 was originally defined with a codespace up to 31 bits, and therefore with up to 6 bytes per character. Since quite a few years ago, it has been reduced in all the relevant definitions (ISO, Unicode, IETF) to a codespace up to 0x10FFFF and a maximum of 4 bytes per character. Many places in the Ruby code base are updated to this 4 byte limit (e.g. EncLen_UTF8 in enc/utf_8.c). But other places in the Ruby code base are not yet updated to this limit (e.g. code_to_mbclen in enc/utf_8.c). This should be fixed.
[I have classified this as a feature because I wasn't able to find a way to expose this problem in Ruby code, but this should be reclassified as a bug if such a problem can be found.]
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