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* lib/ucs2_string: Speed up ucs2_utf8size()Lukas Wunner2016-09-091-1/+1
| | | | | | | | No need to calculate the string length on every loop iteration. Signed-off-by: Lukas Wunner <lukas@wunner.de> Cc: Peter Jones <pjones@redhat.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
* lib/ucs2_string: Correct ucs2 -> utf8 conversionJason Andryuk2016-02-161-7/+7
| | | | | | | | | | | | | | | | | | The comparisons should be >= since 0x800 and 0x80 require an additional bit to store. For the 3 byte case, the existing shift would drop off 2 more bits than intended. For the 2 byte case, there should be 5 bits bits in byte 1, and 6 bits in byte 2. Signed-off-by: Jason Andryuk <jandryuk@gmail.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Cc: Peter Jones <pjones@redhat.com> Cc: Matthew Garrett <mjg59@coreos.com> Cc: "Lee, Chun-Yi" <jlee@suse.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
* lib/ucs2_string: Add ucs2 -> utf8 helper functionsPeter Jones2016-02-101-0/+62
| | | | | | | | | | This adds ucs2_utf8size(), which tells us how big our ucs2 string is in bytes, and ucs2_as_utf8, which translates from ucs2 to utf8.. Signed-off-by: Peter Jones <pjones@redhat.com> Tested-by: Lee, Chun-Yi <jlee@suse.com> Acked-by: Matthew Garrett <mjg59@coreos.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
* Move utf16 functions to kernel core and renameMatthew Garrett2013-04-151-0/+51
We want to be able to use the utf16 functions that are currently present in the EFI variables code in platform-specific code as well. Move them to the kernel core, and in the process rename them to accurately describe what they do - they don't handle UTF16, only UCS2. Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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