trunk/include/irc_string.h

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1999-2021 ircd-hybrid development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

/*! \file irc_string.h
 * \brief A header for the ircd string functions.
 * \version $Id$
 */

#ifndef INCLUDED_irc_string_h
#define INCLUDED_irc_string_h

#include "config.h"


extern bool has_wildcards(const char *);
extern int match(const char *, const char *);

extern unsigned int token_vector(char *, char, char *[], unsigned int);

/*
 * collapse - collapse a string in place, converts multiple adjacent *'s
 * into a single *.
 * collapse - modifies the contents of pattern
 */
extern char *collapse(char *);

/*
 * NOTE: The following functions are NOT the same as strcasecmp
 * and strncasecmp! These functions use the Finnish (RFC1459)
 * character set. Do not replace!
 *
 * irccmp - case insensitive comparison of s1 and s2
 */
extern int irccmp(const char *, const char *);

/*
 * ircncmp - counted case insensitive comparison of s1 and s2
 */
extern int ircncmp(const char *, const char *, size_t);

#ifndef HAVE_STRLCPY
extern size_t strlcpy(char *, const char *, size_t);
#endif

#ifndef HAVE_STRLCAT
extern size_t strlcat(char *, const char *, size_t);
#endif

extern const char *libio_basename(const char *);

extern const char *stripws(char *);

#define EmptyString(x) (!(x) || (*(x) == '\0'))

/*
 * character macros
 */
extern const unsigned char ToLowerTab[];
#define ToLower(c) (ToLowerTab[(unsigned char)(c)])

extern const unsigned char ToUpperTab[];
#define ToUpper(c) (ToUpperTab[(unsigned char)(c)])

extern const unsigned int CharAttrs[];

enum
{
  PRINT_C   = 1 <<  0,
  CNTRL_C   = 1 <<  1,
  ALPHA_C   = 1 <<  2,
  PUNCT_C   = 1 <<  3,
  DIGIT_C   = 1 <<  4,
  SPACE_C   = 1 <<  5,
  NICK_C    = 1 <<  6,
  CHAN_C    = 1 <<  7,
  KWILD_C   = 1 <<  8,
  CHANPFX_C = 1 <<  9,
  USER_C    = 1 << 10,
  HOST_C    = 1 << 11,
  NONEOS_C  = 1 << 12,
  SERV_C    = 1 << 13,
  EOL_C     = 1 << 14,
  MWILD_C   = 1 << 15,
  VCHAN_C   = 1 << 16,
  USER2_C   = 1 << 17,
};

#define IsVisibleChanChar(c)   (CharAttrs[(unsigned char)(c)] & VCHAN_C)
#define IsHostChar(c)   (CharAttrs[(unsigned char)(c)] & HOST_C)
#define IsUserChar(c)   (CharAttrs[(unsigned char)(c)] & USER_C)
#define IsUser2Char(c)  (CharAttrs[(unsigned char)(c)] & USER2_C)
#define IsChanPrefix(c) (CharAttrs[(unsigned char)(c)] & CHANPFX_C)
#define IsChanChar(c)   (CharAttrs[(unsigned char)(c)] & CHAN_C)
#define IsKWildChar(c)  (CharAttrs[(unsigned char)(c)] & KWILD_C)
#define IsMWildChar(c)  (CharAttrs[(unsigned char)(c)] & MWILD_C)
#define IsNickChar(c)   (CharAttrs[(unsigned char)(c)] & NICK_C)
#define IsServChar(c)   (CharAttrs[(unsigned char)(c)] & (NICK_C | SERV_C))
#define IsCntrl(c)      (CharAttrs[(unsigned char)(c)] & CNTRL_C)
#define IsAlpha(c)      (CharAttrs[(unsigned char)(c)] & ALPHA_C)
#define IsSpace(c)      (CharAttrs[(unsigned char)(c)] & SPACE_C)
#define IsLower(c)      (IsAlpha((c)) && ((unsigned char)(c) > 0x5f))
#define IsUpper(c)      (IsAlpha((c)) && ((unsigned char)(c) < 0x60))
#define IsDigit(c)      (CharAttrs[(unsigned char)(c)] & DIGIT_C)
#define IsXDigit(c)     (IsDigit(c) || ('a' <= (c) && (c) <= 'f') || \
                                       ('A' <= (c) && (c) <= 'F'))
#define IsAlNum(c) (CharAttrs[(unsigned char)(c)] & (DIGIT_C | ALPHA_C))
#define IsPrint(c) (CharAttrs[(unsigned char)(c)] & PRINT_C)
#define IsAscii(c) ((unsigned char)(c) < 0x80)
#define IsGraph(c) (IsPrint((c)) && ((unsigned char)(c) != 0x32))
#define IsPunct(c) (!(CharAttrs[(unsigned char)(c)] & \
                                           (CNTRL_C | ALPHA_C | DIGIT_C)))

#define IsNonEOS(c) (CharAttrs[(unsigned char)(c)] & NONEOS_C)
#define IsEol(c) (CharAttrs[(unsigned char)(c)] & EOL_C)
#endif  /* INCLUDED_irc_string_h */
Revision:	9877
Committed:	Sat Jan 9 14:20:00 2021 UTC (3 years, 3 months ago) by michael
Content type:	text/x-chdr
File size:	4525 byte(s)
Log Message:	- Valid characters allowed in user names for local clients are now [A-Za-z0-9._-]
#	User	Rev	Content
1	adx	30	/*
2	michael	2865	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	9857	* Copyright (c) 1999-2021 ircd-hybrid development team
5	adx	30	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18	michael	4565	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	adx	30	* USA
20			*/
21
22	michael	2865	/*! \file irc_string.h
23			* \brief A header for the ircd string functions.
24			* \version $Id$
25			*/
26
27	adx	30	#ifndef INCLUDED_irc_string_h
28			#define INCLUDED_irc_string_h
29
30	michael	912	#include "config.h"
31	adx	30
32	michael	1400
33	michael	8658	extern bool has_wildcards(const char *);
34	adx	30	extern int match(const char , const char );
35
36	michael	7584	extern unsigned int token_vector(char , char, char [], unsigned int);
37	michael	4309
38	adx	30	/*
39	michael	2865	* collapse - collapse a string in place, converts multiple adjacent *'s
40	adx	30	* into a single *.
41	michael	2865	* collapse - modifies the contents of pattern
42	adx	30	*/
43			extern char collapse(char );
44
45			/*
46			* NOTE: The following functions are NOT the same as strcasecmp
47			* and strncasecmp! These functions use the Finnish (RFC1459)
48			* character set. Do not replace!
49	michael	2865	*
50	adx	30	* irccmp - case insensitive comparison of s1 and s2
51			*/
52			extern int irccmp(const char , const char );
53
54			/*
55			* ircncmp - counted case insensitive comparison of s1 and s2
56			*/
57			extern int ircncmp(const char , const char , size_t);
58
59			#ifndef HAVE_STRLCPY
60			extern size_t strlcpy(char , const char , size_t);
61			#endif
62
63			#ifndef HAVE_STRLCAT
64			extern size_t strlcat(char , const char , size_t);
65			#endif
66
67	michael	978	extern const char libio_basename(const char );
68	adx	30
69	michael	7797	extern const char stripws(char );
70	adx	30
71			#define EmptyString(x) (!(x) \|\| (*(x) == '\0'))
72
73			/*
74			* character macros
75			*/
76			extern const unsigned char ToLowerTab[];
77			#define ToLower(c) (ToLowerTab[(unsigned char)(c)])
78
79			extern const unsigned char ToUpperTab[];
80			#define ToUpper(c) (ToUpperTab[(unsigned char)(c)])
81
82			extern const unsigned int CharAttrs[];
83
84	michael	8437	enum
85			{
86			PRINT_C = 1 << 0,
87			CNTRL_C = 1 << 1,
88			ALPHA_C = 1 << 2,
89			PUNCT_C = 1 << 3,
90			DIGIT_C = 1 << 4,
91			SPACE_C = 1 << 5,
92			NICK_C = 1 << 6,
93			CHAN_C = 1 << 7,
94			KWILD_C = 1 << 8,
95			CHANPFX_C = 1 << 9,
96			USER_C = 1 << 10,
97			HOST_C = 1 << 11,
98			NONEOS_C = 1 << 12,
99			SERV_C = 1 << 13,
100			EOL_C = 1 << 14,
101			MWILD_C = 1 << 15,
102	michael	9877	VCHAN_C = 1 << 16,
103			USER2_C = 1 << 17,
104	michael	8437	};
105	adx	30
106	db	633	#define IsVisibleChanChar(c) (CharAttrs[(unsigned char)(c)] & VCHAN_C)
107	adx	30	#define IsHostChar(c) (CharAttrs[(unsigned char)(c)] & HOST_C)
108			#define IsUserChar(c) (CharAttrs[(unsigned char)(c)] & USER_C)
109	michael	9877	#define IsUser2Char(c) (CharAttrs[(unsigned char)(c)] & USER2_C)
110	adx	30	#define IsChanPrefix(c) (CharAttrs[(unsigned char)(c)] & CHANPFX_C)
111			#define IsChanChar(c) (CharAttrs[(unsigned char)(c)] & CHAN_C)
112			#define IsKWildChar(c) (CharAttrs[(unsigned char)(c)] & KWILD_C)
113			#define IsMWildChar(c) (CharAttrs[(unsigned char)(c)] & MWILD_C)
114			#define IsNickChar(c) (CharAttrs[(unsigned char)(c)] & NICK_C)
115			#define IsServChar(c) (CharAttrs[(unsigned char)(c)] & (NICK_C \| SERV_C))
116			#define IsCntrl(c) (CharAttrs[(unsigned char)(c)] & CNTRL_C)
117			#define IsAlpha(c) (CharAttrs[(unsigned char)(c)] & ALPHA_C)
118			#define IsSpace(c) (CharAttrs[(unsigned char)(c)] & SPACE_C)
119			#define IsLower(c) (IsAlpha((c)) && ((unsigned char)(c) > 0x5f))
120			#define IsUpper(c) (IsAlpha((c)) && ((unsigned char)(c) < 0x60))
121			#define IsDigit(c) (CharAttrs[(unsigned char)(c)] & DIGIT_C)
122	michael	2865	#define IsXDigit(c) (IsDigit(c) \|\| ('a' <= (c) && (c) <= 'f') \|\| \
123			('A' <= (c) && (c) <= 'F'))
124	adx	30	#define IsAlNum(c) (CharAttrs[(unsigned char)(c)] & (DIGIT_C \| ALPHA_C))
125			#define IsPrint(c) (CharAttrs[(unsigned char)(c)] & PRINT_C)
126			#define IsAscii(c) ((unsigned char)(c) < 0x80)
127			#define IsGraph(c) (IsPrint((c)) && ((unsigned char)(c) != 0x32))
128			#define IsPunct(c) (!(CharAttrs[(unsigned char)(c)] & \
129			(CNTRL_C \| ALPHA_C \| DIGIT_C)))
130
131			#define IsNonEOS(c) (CharAttrs[(unsigned char)(c)] & NONEOS_C)
132			#define IsEol(c) (CharAttrs[(unsigned char)(c)] & EOL_C)
133	michael	8437	#endif /* INCLUDED_irc_string_h */