2ce08cb20b
this man page to prevent half of it from coming out with underlines. This man page needs to be gone over to fully convert it to mdoc format. This closes PR#1440. Submitted by: Jens Schweikhardt <schweikhardt@rus.uni-stuttgart.de>
232 lines
7.3 KiB
Groff
232 lines
7.3 KiB
Groff
.\" Copyright (c) 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Paul Borman at Krystal Technologies.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)euc.4 8.1 (Berkeley) 6/4/93
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.\"
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.Dd "June 4, 1993"
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.Dt EUC 4
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.Os
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.Sh NAME
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.Nm euc
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.Nd EUC encoding of runes
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.Sh SYNOPSIS
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\fBENCODING "EUC"\fP
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.br
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\fBVARIABLE \fP\fIlen1 mask1 len2 mask2 len3 mask3 len4 mask4 mask\fP
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.Sh DESCRIPTION
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The
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.Nm EUC
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encoding is provided for compatibility with
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.Ux
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based systems.
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See
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.Xr mklocale 1
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for a complete description of the
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.Ev LC_CTYPE
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source file format.
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.Pp
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.Nm EUC
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implements a system of 4 multibyte codesets.
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A multibyte character in the first codeset consists of
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.Ar len1
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bytes starting with a byte in the range of 0x00 to 0x7f.
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To allow use of ASCII,
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.Ar len1
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is always 1.
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A multibyte character in the second codeset consists of
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.Ar len2
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bytes starting with a byte in the range of 0x80-0xff excluding 0x8e and 0x8f.
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A multibyte character in the third codeset consists of
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.Ar len3
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bytes starting with the byte 0x8e.
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A multibyte character in the fourth codeset consists of
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.Ar len4
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bytes starting with the byte 0x8f.
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.Pp
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The
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.Ev rune_t
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encoding of
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.Nm EUC
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multibyte characters is dependent on the
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.Ar len
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and
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.Ar mask
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arguments.
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First, the bytes are moved into a
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.Ev rune_t
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as follows:
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.Bd -literal
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byte0 << ((\fIlen\fPN-1) * 8) | byte1 << ((\fIlen\fPN-2) * 8) | ... | byte\fIlen\fPN-1
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.Ed
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.sp
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The result is then ANDed with
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.Ar ~mask
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and ORed with
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.Ar maskN .
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Codesets 2 and 3 are special in that the leading byte (0x8e or 0x8f) is
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first removed and the
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.Ar lenN
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argument is reduced by 1.
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.sp
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For example, the Japanese locale has the following
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.Ev VARIABLE
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line:
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.Bd -literal
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VARIABLE 1 0x0000 2 0x8080 2 0x0080 3 0x8000 0x8080
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.Ed
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.sp
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Codeset 1 consists of the values 0x0000 - 0x007f.
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.sp
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Codeset 2 consists of the values who have the bits 0x8080 set.
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.sp
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Codeset 3 consists of the values 0x0080 - 0x00ff.
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.sp
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Codeset 4 consists of the values 0x8000 - 0xff7f excluding the values
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which have the 0x0080 bit set.
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.sp
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Notice that the global
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.Ar mask
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is set to 0x8080, this implies that from those 2 bits the codeset can
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be determined.
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.Sh "EXAMPLE - Japanese Locale"
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This is a complete example of an
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.Ev LC_CTYPE
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source file for the Japanese locale
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.Bd -literal
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/*
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* Japanese LOCALE_CTYPE definitions using EUC of JIS character sets
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*/
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ENCODING "EUC"
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/* JIS JIS JIS */
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/* X201 X208 X201 */
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/* 00-7f 84-fe */
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VARIABLE 1 0x0000 2 0x8080 2 0x0080 3 0x8000 0x8080
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/*
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* Code Set 1
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*/
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ALPHA 'A' - 'Z' 'a' - 'z'
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CONTROL 0x00 - 0x1f 0x7f
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DIGIT '0' - '9'
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GRAPH 0x21 - 0x7e
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LOWER 'a' - 'z'
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PUNCT 0x21 - 0x2f 0x3a - 0x40 0x5b - 0x60 0x7b - 0x7e
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SPACE 0x09 - 0x0d 0x20
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UPPER 'A' - 'Z'
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XDIGIT 'a' - 'f' 'A' - 'F'
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BLANK ' ' '\t'
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PRINT 0x20 - 0x7e
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MAPLOWER < 'A' - 'Z' : 'a' > < 'a' - 'z' : 'a' >
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MAPUPPER < 'A' - 'Z' : 'A' > < 'a' - 'z' : 'A' >
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TODIGIT < '0' - '9' : 0 >
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TODIGIT < 'A' - 'F' : 10 > < 'a' - 'f' : 10 >
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/*
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* Code Set 2
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*/
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SPACE 0xa1a1
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PHONOGRAM 0xa1bc
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SPECIAL 0xa1a2 - 0xa1fe
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PUNCT 0xa1a2 - 0xa1f8 /* A few too many in here... */
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SPECIAL 0xa2a1 - 0xa2ae 0xa2ba - 0xa2c1 0xa2ca - 0xa2d0 0xa2dc - 0xa2ea
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SPECIAL 0xa2f2 - 0xa2f9 0xa2fe
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DIGIT 0xa3b0 - 0xa3b9
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UPPER 0xa3c1 - 0xa3da /* Romaji */
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LOWER 0xa3e1 - 0xa3fa /* Romaji */
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MAPLOWER < 0xa3c1 - 0xa3da : 0xa3e1 > /* English */
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MAPLOWER < 0xa3e1 - 0xa3fa : 0xa3e1 > /* English */
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MAPUPPER < 0xa3c1 - 0xa3da : 0xa3c1 >
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MAPUPPER < 0xa3e1 - 0xa3fa : 0xa3c1 >
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XDIGIT 0xa3c1 - 0xa3c6 0xa3e1 - 0xa3e6
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TODIGIT < 0xa3b0 - 0xa3b9 : 0 >
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TODIGIT < 0xa3c1 - 0xa3c6 : 10 > < 0xa3e1 - 0xa3e6 : 10 >
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PHONOGRAM 0xa4a1 - 0xa4f3
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PHONOGRAM 0xa5a1 - 0xa5f6
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UPPER 0xa6a1 - 0xa6b8 /* Greek */
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LOWER 0xa6c1 - 0xa6d8 /* Greek */
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MAPLOWER < 0xa6a1 - 0xa6b8 : 0xa6c1 > < 0xa6c1 - 0xa6d8 : 0xa6c1 >
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MAPUPPER < 0xa6a1 - 0xa6b8 : 0xa6a1 > < 0xa6c1 - 0xa6d8 : 0xa6a1 >
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UPPER 0xa7a1 - 0xa7c1 /* Cyrillic */
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LOWER 0xa7d1 - 0xa7f1 /* Cyrillic */
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MAPLOWER < 0xa7a1 - 0xa7c1 : 0xa7d1 > < 0xa7d1 - 0xa7f1 : 0xa7d1 >
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MAPUPPER < 0xa7a1 - 0xa7c1 : 0xa7a1 > < 0xa7d1 - 0xa7f1 : 0xa7a1 >
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SPECIAL 0xa8a1 - 0xa8c0
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IDEOGRAM 0xb0a1 - 0xb0fe 0xb1a1 - 0xb1fe 0xb2a1 - 0xb2fe
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IDEOGRAM 0xb3a1 - 0xb3fe 0xb4a1 - 0xb4fe 0xb5a1 - 0xb5fe
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IDEOGRAM 0xb6a1 - 0xb6fe 0xb7a1 - 0xb7fe 0xb8a1 - 0xb8fe
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IDEOGRAM 0xb9a1 - 0xb9fe 0xbaa1 - 0xbafe 0xbba1 - 0xbbfe
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IDEOGRAM 0xbca1 - 0xbcfe 0xbda1 - 0xbdfe 0xbea1 - 0xbefe
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IDEOGRAM 0xbfa1 - 0xbffe 0xc0a1 - 0xc0fe 0xc1a1 - 0xc1fe
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IDEOGRAM 0xc2a1 - 0xc2fe 0xc3a1 - 0xc3fe 0xc4a1 - 0xc4fe
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IDEOGRAM 0xc5a1 - 0xc5fe 0xc6a1 - 0xc6fe 0xc7a1 - 0xc7fe
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IDEOGRAM 0xc8a1 - 0xc8fe 0xc9a1 - 0xc9fe 0xcaa1 - 0xcafe
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IDEOGRAM 0xcba1 - 0xcbfe 0xcca1 - 0xccfe 0xcda1 - 0xcdfe
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IDEOGRAM 0xcea1 - 0xcefe 0xcfa1 - 0xcfd3 0xd0a1 - 0xd0fe
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IDEOGRAM 0xd1a1 - 0xd1fe 0xd2a1 - 0xd2fe 0xd3a1 - 0xd3fe
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IDEOGRAM 0xd4a1 - 0xd4fe 0xd5a1 - 0xd5fe 0xd6a1 - 0xd6fe
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IDEOGRAM 0xd7a1 - 0xd7fe 0xd8a1 - 0xd8fe 0xd9a1 - 0xd9fe
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IDEOGRAM 0xdaa1 - 0xdafe 0xdba1 - 0xdbfe 0xdca1 - 0xdcfe
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IDEOGRAM 0xdda1 - 0xddfe 0xdea1 - 0xdefe 0xdfa1 - 0xdffe
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IDEOGRAM 0xe0a1 - 0xe0fe 0xe1a1 - 0xe1fe 0xe2a1 - 0xe2fe
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IDEOGRAM 0xe3a1 - 0xe3fe 0xe4a1 - 0xe4fe 0xe5a1 - 0xe5fe
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IDEOGRAM 0xe6a1 - 0xe6fe 0xe7a1 - 0xe7fe 0xe8a1 - 0xe8fe
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IDEOGRAM 0xe9a1 - 0xe9fe 0xeaa1 - 0xeafe 0xeba1 - 0xebfe
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IDEOGRAM 0xeca1 - 0xecfe 0xeda1 - 0xedfe 0xeea1 - 0xeefe
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IDEOGRAM 0xefa1 - 0xeffe 0xf0a1 - 0xf0fe 0xf1a1 - 0xf1fe
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IDEOGRAM 0xf2a1 - 0xf2fe 0xf3a1 - 0xf3fe 0xf4a1 - 0xf4a4
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/*
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* This is for Code Set 3, half-width kana
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*/
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SPECIAL 0xa1 - 0xdf
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PHONOGRAM 0xa1 - 0xdf
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CONTROL 0x84 - 0x97 0x9b - 0x9f 0xe0 - 0xfe
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.Ed
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.Sh "SEE ALSO"
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.Xr mklocale 1 ,
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.Xr setlocale 3
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