131 lines
6.0 KiB
C
131 lines
6.0 KiB
C
/*
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* IRC - Internet Relay Chat, include/ircd_chattr.h
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* Copyright (C) 1998 Andrea Cocito
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/** @file
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* @brief Character attribute definitions and arrays.
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* @version $Id: ircd_chattr.h 1221 2004-10-05 02:10:00Z entrope $
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*
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* This character set code is adapted from Nemesi's Tools Library,
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* which gives us the prefix NTL_ on these macros.
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*/
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#ifndef INCLUDED_ircd_chattr_h
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#define INCLUDED_ircd_chattr_h
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#ifndef INCLUDED_limits_h
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#include <limits.h>
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#define INCLUDED_limits_h
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#endif
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#ifndef INCLUDED_sys_types_h
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#include <sys/types.h>
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#define INCLUDED_sys_types_h
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#endif
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/*
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* Character attribute macros
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*/
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#define NTL_ALNUM 0x0001 /**< (NTL_ALPHA | NTL_DIGIT) */
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#define NTL_ALPHA 0x0002 /**< (NTL_LOWER | NTL_UPPER) */
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#define NTL_CNTRL 0x0004 /**< \\000 - \\037 == 0x00 - 0x1F */
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#define NTL_DIGIT 0x0008 /**< 0123456789 */
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#define NTL_GRAPH 0x0010 /**< (NTL_ALNUM | NTL_PUNCT) */
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#define NTL_LOWER 0x0020 /**< abcdefghijklmnopqrstuvwxyz{|}~ */
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#define NTL_PRINT 0x0040 /**< (NTL_GRAPH | ' ') */
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#define NTL_PUNCT 0x0080 /**< !"#$%&'()*+,-./:;<=>?\@_` */
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#define NTL_SPACE 0x0100 /**< \\011\\012\\013\\014\\015\\040 */
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#define NTL_UPPER 0x0200 /**< ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^ */
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#define NTL_IRCCH 0x0400 /**< Channel's names charset */
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#define NTL_IRCCL 0x0800 /**< Force toLower() in ch-name */
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#define NTL_IRCNK 0x1000 /**< Nick names charset, aka isvalid() */
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#define NTL_IRCUI 0x2000 /**< UserIDs charset, IRCHN plus tilde */
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#define NTL_IRCHN 0x4000 /**< Hostnames charset (weak, RFC 1033) */
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#define NTL_IRCIP 0x8000 /**< Numeric IPs charset (DIGIT and .) */
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#define NTL_EOL 0x10000 /**< \\r\\n */
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#define NTL_KTIME 0x20000 /**< Valid character for a k:line time */
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#define NTL_CHPFX 0x40000 /**< channel prefix char # & + */
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#define NTL_IRCIP6 0x80000 /**< Numeric IPv6 character (hex or colon) */
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/*
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* Tables used for translation and classification macros
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*/
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/** Array mapping characters to RFC 1459 lower-case versions.
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* Yes, the variable name lies about the encoding.
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*/
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extern const char ToLowerTab_8859_1[];
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/** Array mapping characters to RFC 1459 upper-case versions.
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* Yes, the variable name lies about the encoding.
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*/
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extern const char ToUpperTab_8859_1[];
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/** Array mapping characters to attribute bitmasks. */
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extern const unsigned int IRCD_CharAttrTab[];
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/*
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* Translation macros for channel name case translation
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* NOTE: Channel names are supposed to be lower case insensitive for
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* ISO 8859-1 character sets.
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*/
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/** Convert a character to its lower-case equivalent. */
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#define ToLower(c) (ToLowerTab_8859_1[(c) - CHAR_MIN])
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/** Convert a character to its upper-case equivalent. */
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#define ToUpper(c) (ToUpperTab_8859_1[(c) - CHAR_MIN])
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/*
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* Character classification macros
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* NOTE: The IsUpper and IsLower macros do not apply to the complete
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* ISO 8859-1 character set, unlike the ToUpper and ToLower macros above.
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* IsUpper and IsLower only apply for comparisons of the US ASCII subset.
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*/
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/** Test whether a character is alphanumeric. */
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#define IsAlnum(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_ALNUM)
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/** Test whether a character is alphabetic. */
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#define IsAlpha(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_ALPHA)
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/** Test whether a character is a digit. */
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#define IsDigit(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_DIGIT)
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/** Test whether a character is lower case. */
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#define IsLower(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_LOWER)
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/** Test whether a character is whitespace. */
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#define IsSpace(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_SPACE)
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/** Test whether a character is upper case. */
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#define IsUpper(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_UPPER)
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/** Test whether a character is a control character. */
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#define IsCntrl(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_CNTRL)
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/** Test whether a character is valid in a channel name. */
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#define IsChannelChar(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_IRCCH)
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/** Test whether a character is a lower-case channel name character. */
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#define IsChannelLower(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_IRCCL)
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/** Test whether a character is a channel prefix. */
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#define IsChannelPrefix(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_CHPFX)
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/** Test whether a character is valid in a nickname. */
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#define IsNickChar(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_IRCNK)
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/** Test whether a character is valid in a userid. */
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#define IsUserChar(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_IRCUI)
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/** Test whether a character is valid in a hostname. */
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#define IsHostChar(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_IRCHN)
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/** Test whether a character is valid in an IPv4 address. */
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#define IsIPChar(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_IRCIP)
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/** Test whether a character is valid in an IPv6 address. */
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#define IsIP6Char(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_IRCIP6)
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/** Test whether a character is an end-of-line character. */
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#define IsEol(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_EOL)
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/** Test whether a character is valid in a K: line expiration string. */
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#define IsKTimeChar(c) (IRCD_CharAttrTab[(c) - CHAR_MIN] & NTL_KTIME)
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#endif /* INCLUDED_ircd_chattr_h */
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