Well, yes, maybe you could provide the data :-)

For details please see
http://wiki.services.openoffice.org/wiki/How_to_submit_new_Locale_Data

Thanks
  Eike

Here we go :
http://www.it46.se/localegen/locale/1233064040_acx_OM.xml

Thanks. A comment: the number formats for currency use a parenthesized form for
negative amounts ([CURRENCY]#,##0.00) that usually is only correct for locales
based on an en-US locale, which probably is an oversight here. Please check and
correct if appropriate.

Another try :

http://www.it46.se/localegen/locale/1233076272_acx_OM.xml

Created attachment 59712 [details]
ar_OM local data

Thank you for your contribution.
Please note that to integrate code or data contributed we need a signed
Contributor Agreement form (SCA) filled-out. If you do not plan further
contributions to the OOo code base that would need a signed SCA (see
http://wiki.services.openoffice.org/wiki/Sun_Contributor_Agreement ) you
may as well make use of the joint copyright agreement as lined out in
http://www.it46.se/localegen/copyright.php

@it46: For this I formally ask Alberto Escudero-Pascual to contribute
the attached locale data file to the OOo code base under the JCA/SCA he
signed.

Thanks
  Eike

In cws locales32:

revision 273185
i18npool/source/localedata/data/ar_OM.xml
i18npool/source/localedata/data/localedata_others.map
i18npool/source/localedata/data/makefile.mk
i18npool/source/localedata/localedata.cxx

Note that I changed ISO 639 acx-OM to ar-OM generic macrolanguage Arabic code,
because so far OOo doesn't make a distinction there.

When test compiling the data I got:

Warning: QuotationStart and QuotationEnd are both ASCII characters. Not
necessarily an error, but unusual.
Warning: DoubleQuotationStart and DoubleQuotationEnd are both ASCII characters.
Not necessarily an error, but unusual.
Warning: QuotationStart equals QuotationEnd. Not necessarily an error, but unusual.
Warning: DoubleQuotationStart equals DoubleQuotationEnd. Not necessarily an
error, but unusual.
Error: CurrencyID is not ISO 4217
Error: BankSymbol is not ISO 4217

I fixed CurrencyID and BankSymbol to ISO 4217 code 'OMR'.

But what about the ASCII quotation characters? Usually these are some
typographic quotation characters instead.

Btw, noticed that all other ar_* locales use different separators:
      <ThousandSeparator>٬</ThousandSeparator>
      <DecimalSeparator>٫</DecimalSeparator>
whereas ar_OM uses
      <ThousandSeparator>,</ThousandSeparator>
      <DecimalSeparator>.</DecimalSeparator>

On purpose?

Changed ListSeparator to ';' semicolon instead of ',' comma, for consistency. It
is currently not used though.

Reassigning to QA for verification.

Verified in CWS locales32.

OK in OOO320_m7. Closed.