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Warning!!! Warning!!! Warning!!! Warning!!! Warning!!! Warning!!!
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Warning!!! Warning!!! Warning!!! Warning!!! Warning!!! Warning!!!
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The programs in this directory are strictly cut-and-paste hack jobs to
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extract the data I needed from glibc's locale database. I'm ashamed to
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even let them into the light of day, and I consider them complete garbage.
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However, they are currently necessary to build the data needed for the
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locale support I've implemented, so I'm forced to include them here.
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NOTE: While its possible to use this stuff for native != target arch,
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you'll have to either write a converter to account for endianess and
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struct padding issues, or run the mmap file generator on your target
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arch. But all these programs will be rewritten at some point.
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All that being said, LC_CTYPE support has been added and supports the
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ctype.h and wctype.h function. Also, LC_TIME, LC_MONETARY, LC_NUMERIC,
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and LC_MESSAGES are supported wrt SUSv3. localeconv() works in both
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real and stub locale modes. nl_langinfo() currently only works with
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real locales enabled. That will be fixed though. wc->mb unsupported
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char replacement and basic translit support is on the way as well.
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Finally, some basic 8-bit codeset LC_COLLATE support should be in place
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in the next week or two (similar to what was in the previous locale
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implementation).
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Also, as one can probably guess, I'm working towards having the locale
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data accessed via a shared mmap. That will allow non-mmu platforms
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to use this without the current bloat.
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Currently, the output of size for my locale_data.o file is
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text data bss dec hex filename
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59072 4 0 59076 e6c4 extra/locale/locale_data.o
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which is for the C locale (automatic of course) + all codesets in
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charmaps/ and all 268 locales in LOCALES. I estimate that the
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translit support for those 8-bit codesets will add another 7-10k.
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One difference of note is that the special case upper/lower mappings
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in the turkish locale are currently not implemented. That will be
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fixed.
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Manuel
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Warning!!! Warning!!! Warning!!! Warning!!! Warning!!! Warning!!!
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Warning!!! Warning!!! Warning!!! Warning!!! Warning!!! Warning!!!
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1) In the toplevel dir, 'make headers'.
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2) Create a codesets.txt file in this dir listing the codesets you want
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to support. The easiest way to do this is to edit the output of
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'find ./charmaps -name "*.pairs" > codesets.txt'.
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NOTE: UTF-8 support is always included if you build with wide chars enabled.
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NOTE: The files in charmaps/ were created from glibc's charmap files
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with the awk script at the end of this file. You can add others
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but only single byte codesets are supported.
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3) Create a locales.txt file to select the locales you want to support.
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You can copy and edit the LOCALES file for example. Other locales could
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added provided you've included the appropriate codesets in step 2.
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NOTE: You have to have the approprite locales available for glibc!
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4) Run make here.
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5) Continue building uClibc from the toplevel dir.
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Script used to generate the charmaps/*.pairs files:
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cat $1 | awk 'BEGIN { i = 0 } ; { if ($1 == "CHARMAP") i=1 ; else if ($1 == "END") i=0 ; else if (i==1) { sub("/","0",$2) ; sub("","",$1) ; print "{", $2, ",", $1, "}," } }'
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