Bug #46701 for Encode: Incorrect character mapping in Encode::GSM0338

# Sat Jun 06 06:03:09 2009 bhawkeslewis [...] googlemail.com - Ticket created

Subject:

Incorrect character mapping in Encode::GSM0338

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As you can see from the source code: http://cpansearch.perl.org/src/DANKOGAI/Encode- 2.33/lib/Encode/GSM0338.pm Encode::GSM maps 0x09 in GSM to lowercase c cedilla in Unicode (U+00E7). "\x{00E7}" => "\x09", # LATIN SMALL LETTER C WITH CEDILLA But I think this is wrong. GSM 03.38 maps the same character to /uppercase/ c cedilla (U+00C7). See ETSI TS 100 900 V7.2.0 (1999-07) Digital cellular telecommunications system (Phase 2+); Alphabets and language-specific information (GSM 03.38 version 7.2.0 Release 1998), Section 6.2.1 ("Default Alphabet"): http://pda.etsi.org/exchangefolder/ts_100900v070200p.pdf So this line needs changing to: "\x{00C7}" => "\x09", # LATIN CAPITAL LETTER C WITH CEDILLA

# Wed Jul 08 09:16:19 2009 DANKOGAI [...] cpan.org - Correspondence added

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On Sat Jun 06 06:03:09 2009, benjaminhawkeslewis wrote: Show quoted text

> As you can see from the source code: > > http://cpansearch.perl.org/src/DANKOGAI/Encode- > 2.33/lib/Encode/GSM0338.pm > > Encode::GSM maps 0x09 in GSM to lowercase c cedilla in Unicode (U+00E7). > > "\x{00E7}" => "\x09", # LATIN SMALL LETTER C WITH CEDILLA > > But I think this is wrong. > > GSM 03.38 maps the same character to /uppercase/ c cedilla (U+00C7). > > See ETSI TS 100 900 V7.2.0 (1999-07) Digital cellular telecommunications > system (Phase 2+); Alphabets and language-specific information (GSM > 03.38 version 7.2.0 Release 1998), Section 6.2.1 ("Default Alphabet"): > > http://pda.etsi.org/exchangefolder/ts_100900v070200p.pdf > > So this line needs changing to: > > "\x{00C7}" => "\x09", # LATIN CAPITAL LETTER C WITH CEDILLA

But that conflicts with what http://pda.etsi.org/exchangefolder/ts_100900v070200p.pdf says. Section 6.2.1 just shows the glyph. No unicode code point. Dan the Encode Maintainer

# Wed Jul 08 09:16:19 2009 The RT System itself - Status changed from 'new' to 'open'

# Wed Sep 18 20:37:34 2013 wiml [...] hhhh.org - Correspondence added

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The Unicode Consortium's mapping table for GSM 03.38 has this to say on the matter: # The ETSI GSM 03.38 specification shows an uppercase C-cedilla # glyph at 0x09. This may be the result of limited display # capabilities for handling characters with descenders. However, the # language coverage intent is clearly for the lowercase c-cedilla, as shown # in the mapping below. The mapping for uppercase C-cedilla is shown # in a commented line in the mapping table. The other accented characters in column 0000 of the table are mostly lowercase with no uppercase equivalents elsewhere in the mapping, so who knows.