ISO/IEC 10367
ISO/IEC 10367:1991 is a standard developed by ISO/IEC JTC 1/SC 2,[1] defining graphical character sets for use in character encodings implementing levels 2 and 3 of ISO/IEC 4873[2] (as opposed to ISO/IEC 8859, which defines character encodings at level 1 of ISO/IEC 4873).
Relationship to ISO/IEC 8859
The parts of ISO/IEC 8859 define complete encodings at level 1 of ISO/IEC 4873 (i.e. as stateless extended ASCII single-byte encodings, reserving the C1 area), and do not allow for use of multiple parts together. For use at levels 2 and 3 of ISO/IEC 4873 (i.e. with shift codes for additional graphical character sets), ISO/IEC 8859 stipulates that equivalent sets from ISO/IEC 10367 should be used instead.[3]
ISO/IEC 10367:1991 includes ASCII, as well as G1 sets matching the right-hand sides (non-ASCII parts) of ISO/IEC 8859 parts 1 through 9 (i.e. those parts which existed as of 1991, when it was published), and some additional graphical character sets supplementing the characters in those sets or defining box drawing characters.[2]
Box drawing set
The following shows the box drawing set from ISO/IEC 10367, which is registered for ISO/IEC 2022 use as ISO-IR-155. Although it does not make use of the 0x20/A0 or 0x7F/FF positions, it is registered as a 96-character set.[4]
Perl libintl includes a "ISO_10367-BOX" codec. This encodes/decodes ASCII over GL and the ISO-IR-155 box drawing set over GR with a few deviations. Specifically, it includes double-lined box-drawing characters in place of heavy-lined characters, and it replaces the upper half block (▀) at 0xCB with a private use character U+E019, documented as "Unit space B".[5]
References
- ^ ISO/IEC JTC 1/SC 2 (1991). "Information technology — Standardized coded graphic character sets for use in 8-bit codes". ISO. ISO/IEC 10367:1991.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ a b van Wingen, Johan W (1999). "8. Code Extension, ISO 2022 and 2375, ISO 4873 and 10367". Character sets. Letters, tokens and codes. Terena.
- ^ ISO/IEC JTC 1/SC 2 (1998-02-12). Final Text of DIS 8859-10, Information Technology — 8-bit single-byte coded graphic character sets — Part 10: Latin alphabet No. 6 (PDF). ISO/IEC FDIS 8859-10:1998, JTC1/SC2 N2992, WG3 N415.
{{citation}}
: CS1 maint: numeric names: authors list (link) - ^ a b ISO/IEC/JTC1/SC2/WG3 (1990-04-16). "Basic Box-Drawings Set" (PDF). ITSCJ/IPSJ. ISO-IR-155.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ Flohr, Guido. "Conversion routines for ISO_10367_BOX". libintl-perl. Locale::RecodeData::ISO_10367_BOX.