code_page(5) — Macro Packages and Conventions
NAME
code_page, cp437, cp737, cp775, cp850, cp852, cp855, cp857, cp860, cp861, cp862, cp863, cp865, cp866, cp869, cp874, cp949, dingbats, symbol − Coded character sets that are used on Microsoft Windows and NT systems
DESCRIPTION
Code pages are coded character sets that are used on Microsoft Windows, Windows 95, and NT systems. Just as there are different UNIX codesets, there are different PC code pages, each supporting a particular set of character encodings.
A DIGITAL UNIX system supplies one locale, en_US.cp850, that directly supports a PC code-page format (MS-DOS Latin 1). For all other locales, data in code-page format is supported only through codeset converters. These converters can be run directly by users or by software or applications that exchange data between PC and DIGITAL UNIX systems. Fonts and other kinds of character support are available only for the native UNIX codeset to which a code page can be converted. See the i18n_intro(5) reference page for introductory information on locales and codesets. See the iconv_intro(5) reference page for an introduction to codeset conversion and the name format and location of codeset converters.
The following table lists and describes the code pages that have conversion support on a DIGITAL UNIX system:
| Code Page | Description |
| cp437 | MS-DOS United States |
| cp737 | Greek |
| cp775 | Baltic languages |
| cp850 | MS-DOS Multilingual (Latin 1) |
| cp852 | MS-DOS Slavic (Latin 2) |
| cp855 | IBM Cyrillic |
| cp857 | IBM Turkish |
| cp860 | MS-DOS Portuguese |
| cp861 | MS-DOS Icelandic |
| cp862 | Hebrew |
| cp863 | MS-DOS Canadian French |
| cp865 | MS-DOS Nordic languages |
| cp866 | MS-DOS Russian |
| cp869 | IBM Modern Greek |
| cp874 | Thai |
| cp949 | Korean |
| dingbats | Microsoft dingbat characters |
| symbol | Microsoft miscellaneous symbol characters |
In all cases, a code page can be converted to and from the UCS-2, UCS-4, and UTF-8 codesets. In addition, some code pages can be converted directly to ISO codesets as shown in the following table.
| Code Page | Can Be Converted Directly to: |
| cp437 | ISO8859-1 |
| cp737 | ISO8859-7 |
| cp775 | ISO8859-4 |
| cp850 | ISO8859-1 |
| cp852 | ISO8859-2 |
| cp855 | ISO8859-5 |
| cp857 | ISO8859-9 |
| cp860 | ISO8859-1 |
| cp861 | ISO8859-1 |
| cp862 | ISO8859-8 |
| cp863 | ISO8859-1 |
| cp865 | ISO8859-1 |
| cp866 | ISO8859-5 |
| cp869 | ISO8859-7 |
| cp874 | TACTIS |
See Unicode(5) for information about UCS-2, UCS-4, and UTF-8. Reference pages for UNIX implementations of the ISO codesets have the name format iso8859-number(5).
There are no codeset converters for Chinese and Japanese code pages because identical character encoding is provided in existing UNIX codesets. For Traditional Chinese, character encoding in PC code pages is identical to that in the Big-5 (big5) codeset. For Simplified Chinese, character encoding in PC code pages is identical to that in the DEC Hanzi (dechanzi) codeset. For Japanese, character encoding in PC code pages is identical to that in the Shift JIS (SJIS) codeset.
Caution
Conversion of text that starts out in code-page format to the DEC Korean (deckorean) codeset may result in loss of data. All of the DIGITAL UNIX codeset equivalents for the cp949 (Korean) code page support all the Hanja and miscellaneous characters also supported by the code page. However, only the UCS-2, UCS-4, and UTF-8 codesets support the complete set of Hangul characters supported by the cp949 code page. The deckorean codeset supports only a subset of these Hangul characters. Therefore, if data is converted from cp949 format to UCS-2, UCS-4, or UTF-8, no data is lost. However, if the data is then converted from UCS-2, UCS-4, or UTF-8 to deckorean, the unsupported Hangul characters will be lost.
SEE ALSO
Commands: iconv(1)
Functions: iconv(3), iconv_close(3), iconv_open(3)
Others: i18n_intro(5), iconv_intro(5), iso8859-1(5), Unicode(5)