- From: jean-frederic clere <jfrederic.clere@fujitsu-siemens.com>
- Date: Wed, 05 Nov 2003 18:02:43 +0100
- To: Markus Scherer <markus.scherer@jtcsv.com>
- Cc: ietf-charsets@iana.org, Guenther Kammermeier <guenther.kammermeier@fujitsu-siemens.com>, Martin Kraemer <Martin.Kraemer@fujitsu-siemens.com>
Markus Scherer wrote: > Do BS2000 conversion implementations that convert between these charsets > and Unicode/ISO 10646 only use roundtrip mappings, or do they also use > fallback/one-way mappings? I assume that all mappings in the supplied > tables are roundtrip mappings. > > What substitution character byte sequence is used for these charsets? It > should be added to the registration. Is it the same for all of them? > (IBM's SUB character for EBCDIC SBCS is 0x3F.) > > See "fallback" and "substitution" in http://www.unicode.org/reports/tr22/ > > markus > > For OSD_EBCDIC_DF04_1 and OSD_EBCDIC_DF04_15 that is a 8 bits roundtrip mapping but for 2 bytes mapping, undefined characters are mapped as '?' 0x6F. In OSD_EBCDIC_DF03_IRV there is no 8 bits roundtrip mapping, undefined characters are mapped as '?' 0x6F. Jean-Frederic
Received on Wednesday, 5 November 2003 12:04:44 UTC