/Users/deen/code/yugabyte-db/src/postgres/src/include/regex/regex.h

Source (jump to first uncovered line)
#ifndef _REGEX_H_
#define _REGEX_H_       /* never again */
/*
 * regular expressions
 *
 * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
 *
 * Development of this software was funded, in part, by Cray Research Inc.,
 * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
 * Corporation, none of whom are responsible for the results.  The author
 * thanks all of them.
 *
 * Redistribution and use in source and binary forms -- with or without
 * modification -- are permitted for any purpose, provided that
 * redistributions in source form retain this entire copyright notice and
 * indicate the origin and nature of any modifications.
 *
 * I'd appreciate being given credit for this package in the documentation
 * of software which uses it, but that is not a requirement.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * src/include/regex/regex.h
 */

/*
 * Add your own defines, if needed, here.
 */
#include "mb/pg_wchar.h"

/*
 * interface types etc.
 */

/*
 * regoff_t has to be large enough to hold either off_t or ssize_t,
 * and must be signed; it's only a guess that long is suitable.
 */
typedef long regoff_t;

/*
 * other interface types
 */

/* the biggie, a compiled RE (or rather, a front end to same) */
typedef struct
{
  int     re_magic;   /* magic number */
  size_t    re_nsub;    /* number of subexpressions */
  long    re_info;    /* information about RE */
#define  REG_UBACKREF    000001
#define  REG_ULOOKAROUND   000002
#define  REG_UBOUNDS   000004
#define  REG_UBRACES   000010
#define  REG_UBSALNUM    000020
#define  REG_UPBOTCH   000040
#define  REG_UBBS    000100
#define  REG_UNONPOSIX     000200
#define  REG_UUNSPEC   000400
#define  REG_UUNPORT   001000
#define  REG_ULOCALE   002000
#define  REG_UEMPTYMATCH   004000
#define  REG_UIMPOSSIBLE   010000
#define  REG_USHORTEST     020000
  int     re_csize;   /* sizeof(character) */
  char     *re_endp;    /* backward compatibility kludge */
  Oid     re_collation; /* Collation that defines LC_CTYPE behavior */
  /* the rest is opaque pointers to hidden innards */
  char     *re_guts;    /* `char *' is more portable than `void *' */
  char     *re_fns;
} regex_t;

/* result reporting (may acquire more fields later) */
typedef struct
{
  regoff_t  rm_so;      /* start of substring */
  regoff_t  rm_eo;      /* end of substring */
} regmatch_t;

/* supplementary control and reporting */
typedef struct
{
  regmatch_t  rm_extend;    /* see REG_EXPECT */
} rm_detail_t;



/*
 * regex compilation flags
 */
#define REG_BASIC 000000    /* BREs (convenience) */
#define REG_EXTENDED  000001  /* EREs */
#define REG_ADVF  000002    /* advanced features in EREs */
#define REG_ADVANCED  000003  /* AREs (which are also EREs) */
#define REG_QUOTE 000004    /* no special characters, none */
#define REG_NOSPEC  REG_QUOTE /* historical synonym */
#define REG_ICASE 000010    /* ignore case */
#define REG_NOSUB 000020    /* don't care about subexpressions */
#define REG_EXPANDED  000040  /* expanded format, white space & comments */
#define REG_NLSTOP  000100    /* \n doesn't match . or [^ ] */
#define REG_NLANCH  000200    /* ^ matches after \n, $ before */
#define REG_NEWLINE 000300    /* newlines are line terminators */
#define REG_PEND  000400    /* ugh -- backward-compatibility hack */
#define REG_EXPECT  001000    /* report details on partial/limited matches */
#define REG_BOSONLY 002000    /* temporary kludge for BOS-only matches */
#define REG_DUMP  004000    /* none of your business :-) */
#define REG_FAKE  010000    /* none of your business :-) */
#define REG_PROGRESS  020000  /* none of your business :-) */



/*
 * regex execution flags
 */
#define REG_NOTBOL  0001    /* BOS is not BOL */
#define REG_NOTEOL  0002    /* EOS is not EOL */
#define REG_STARTEND  0004  /* backward compatibility kludge */
#define REG_FTRACE  0010    /* none of your business */
#define REG_MTRACE  0020    /* none of your business */
#define REG_SMALL 0040    /* none of your business */


/*
 * error reporting
 * Be careful if modifying the list of error codes -- the table used by
 * regerror() is generated automatically from this file!
 */
#define REG_OKAY   0      /* no errors detected */
#define REG_NOMATCH  1      /* failed to match */
#define REG_BADPAT   2      /* invalid regexp */
#define REG_ECOLLATE   3    /* invalid collating element */
#define REG_ECTYPE   4      /* invalid character class */
#define REG_EESCAPE  5      /* invalid escape \ sequence */
#define REG_ESUBREG  6      /* invalid backreference number */
#define REG_EBRACK   7      /* brackets [] not balanced */
#define REG_EPAREN   8      /* parentheses () not balanced */
#define REG_EBRACE   9      /* braces {} not balanced */
#define REG_BADBR 10      /* invalid repetition count(s) */
#define REG_ERANGE  11      /* invalid character range */
#define REG_ESPACE  12      /* out of memory */
#define REG_BADRPT  13      /* quantifier operand invalid */
#define REG_ASSERT  15      /* "can't happen" -- you found a bug */
#define REG_INVARG  16      /* invalid argument to regex function */
#define REG_MIXED 17      /* character widths of regex and string differ */
#define REG_BADOPT  18      /* invalid embedded option */
#define REG_ETOOBIG 19      /* regular expression is too complex */
#define REG_ECOLORS 20      /* too many colors */
#define REG_CANCEL  21      /* operation cancelled */
/* two specials for debugging and testing */
#define REG_ATOI  101      /* convert error-code name to number */
#define REG_ITOA  102      /* convert error-code number to name */
/* non-error result codes for pg_regprefix */
#define REG_PREFIX  (-1)    /* identified a common prefix */
#define REG_EXACT (-2)    /* identified an exact match */



/*
 * the prototypes for exported functions
 */

/* regcomp.c */
extern int  pg_regcomp(regex_t *, const pg_wchar *, size_t, int, Oid);
extern int  pg_regexec(regex_t *, const pg_wchar *, size_t, size_t, rm_detail_t *, size_t, regmatch_t[], int);
extern int  pg_regprefix(regex_t *, pg_wchar **, size_t *);
extern void pg_regfree(regex_t *);
extern size_t pg_regerror(int, const regex_t *, char *, size_t);

/* regexp.c */
extern regex_t *RE_compile_and_cache(text *text_re, int cflags, Oid collation);
extern bool RE_compile_and_execute(text *text_re, char *dat, int dat_len,
             int cflags, Oid collation,
             int nmatch, regmatch_t *pmatch);

#endif              /* _REGEX_H_ */

Line	Count	Source (jump to first uncovered line)
1		#ifndef _REGEX_H_
2		#define _REGEX_H_ /* never again */
3		/*
4		* regular expressions
5		*
6		* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
7		*
8		* Development of this software was funded, in part, by Cray Research Inc.,
9		* UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
10		* Corporation, none of whom are responsible for the results. The author
11		* thanks all of them.
12		*
13		* Redistribution and use in source and binary forms -- with or without
14		* modification -- are permitted for any purpose, provided that
15		* redistributions in source form retain this entire copyright notice and
16		* indicate the origin and nature of any modifications.
17		*
18		* I'd appreciate being given credit for this package in the documentation
19		* of software which uses it, but that is not a requirement.
20		*
21		* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
22		* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
23		* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
24		* HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25		* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26		* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
27		* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28		* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29		* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
30		* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31		*
32		* src/include/regex/regex.h
33		*/
34
35		/*
36		* Add your own defines, if needed, here.
37		*/
38		#include "mb/pg_wchar.h"
39
40		/*
41		* interface types etc.
42		*/
43
44		/*
45		* regoff_t has to be large enough to hold either off_t or ssize_t,
46		* and must be signed; it's only a guess that long is suitable.
47		*/
48		typedef long regoff_t;
49
50		/*
51		* other interface types
52		*/
53
54		/* the biggie, a compiled RE (or rather, a front end to same) */
55		typedef struct
56		{
57		int re_magic; /* magic number */
58		size_t re_nsub; /* number of subexpressions */
59		long re_info; /* information about RE */
60	2.25k	#define REG_UBACKREF 000001
61		#define REG_ULOOKAROUND 000002
62		#define REG_UBOUNDS 000004
63		#define REG_UBRACES 000010
64		#define REG_UBSALNUM 000020
65		#define REG_UPBOTCH 000040
66		#define REG_UBBS 000100
67		#define REG_UNONPOSIX 000200
68		#define REG_UUNSPEC 000400
69		#define REG_UUNPORT 001000
70		#define REG_ULOCALE 002000
71	75	#define REG_UEMPTYMATCH 004000
72	2.37k	#define REG_UIMPOSSIBLE 010000
73		#define REG_USHORTEST 020000
74		int re_csize; /* sizeof(character) */
75		char re_endp; / backward compatibility kludge */
76		Oid re_collation; /* Collation that defines LC_CTYPE behavior */
77		/* the rest is opaque pointers to hidden innards */
78		char re_guts; / `char ' is more portable than `void ' */
79		char *re_fns;
80		} regex_t;
81
82		/* result reporting (may acquire more fields later) */
83		typedef struct
84		{
85		regoff_t rm_so; /* start of substring */
86		regoff_t rm_eo; /* end of substring */
87		} regmatch_t;
88
89		/* supplementary control and reporting */
90		typedef struct
91		{
92		regmatch_t rm_extend; /* see REG_EXPECT */
93		} rm_detail_t;
94
95
96
97		/*
98		* regex compilation flags
99		*/
100		#define REG_BASIC 000000 /* BREs (convenience) */
101	200	#define REG_EXTENDED 000001 /* EREs */
102	126	#define REG_ADVF 000002 /* advanced features in EREs */
103	360	#define REG_ADVANCED 000003 /* AREs (which are also EREs) */
104	300	#define REG_QUOTE 000004 /* no special characters, none */
105		#define REG_NOSPEC REG_QUOTE /* historical synonym */
106	777	#define REG_ICASE 000010 /* ignore case */
107	2.28k	#define REG_NOSUB 000020 /* don't care about subexpressions */
108	1.28k	#define REG_EXPANDED 000040 /* expanded format, white space & comments */
109	117	#define REG_NLSTOP 000100 /* \n doesn't match . or [^ ] */
110	168	#define REG_NLANCH 000200 /* ^ matches after \n, $ before */
111	28	#define REG_NEWLINE 000300 /* newlines are line terminators */
112		#define REG_PEND 000400 /* ugh -- backward-compatibility hack */
113	4.53k	#define REG_EXPECT 001000 /* report details on partial/limited matches */
114	100	#define REG_BOSONLY 002000 /* temporary kludge for BOS-only matches */
115		#define REG_DUMP 004000 /* none of your business :-) */
116	0	#define REG_FAKE 010000 /* none of your business :-) */
117		#define REG_PROGRESS 020000 /* none of your business :-) */
118
119
120
121		/*
122		* regex execution flags
123		*/
124	2.23k	#define REG_NOTBOL 0001 /* BOS is not BOL */
125	1.11k	#define REG_NOTEOL 0002 /* EOS is not EOL */
126		#define REG_STARTEND 0004 /* backward compatibility kludge */
127		#define REG_FTRACE 0010 /* none of your business */
128		#define REG_MTRACE 0020 /* none of your business */
129	2.34k	#define REG_SMALL 0040 /* none of your business */
130
131
132		/*
133		* error reporting
134		* Be careful if modifying the list of error codes -- the table used by
135		* regerror() is generated automatically from this file!
136		*/
137	12.4k	#define REG_OKAY 0 /* no errors detected */
138	2.16k	#define REG_NOMATCH 1 /* failed to match */
139		#define REG_BADPAT 2 /* invalid regexp */
140		#define REG_ECOLLATE 3 /* invalid collating element */
141		#define REG_ECTYPE 4 /* invalid character class */
142		#define REG_EESCAPE 5 /* invalid escape \ sequence */
143		#define REG_ESUBREG 6 /* invalid backreference number */
144		#define REG_EBRACK 7 /* brackets [] not balanced */
145		#define REG_EPAREN 8 /* parentheses () not balanced */
146		#define REG_EBRACE 9 /* braces {} not balanced */
147		#define REG_BADBR 10 /* invalid repetition count(s) */
148		#define REG_ERANGE 11 /* invalid character range */
149	0	#define REG_ESPACE 12 /* out of memory */
150		#define REG_BADRPT 13 /* quantifier operand invalid */
151	0	#define REG_ASSERT 15 /* "can't happen" -- you found a bug */
152	0	#define REG_INVARG 16 /* invalid argument to regex function */
153	0	#define REG_MIXED 17 /* character widths of regex and string differ */
154		#define REG_BADOPT 18 /* invalid embedded option */
155	0	#define REG_ETOOBIG 19 /* regular expression is too complex */
156		#define REG_ECOLORS 20 /* too many colors */
157	0	#define REG_CANCEL 21 /* operation cancelled */
158		/* two specials for debugging and testing */
159	0	#define REG_ATOI 101 /* convert error-code name to number */
160	0	#define REG_ITOA 102 /* convert error-code number to name */
161		/* non-error result codes for pg_regprefix */
162	272	#define REG_PREFIX (-1) /* identified a common prefix */
163	292	#define REG_EXACT (-2) /* identified an exact match */
164
165
166
167		/*
168		* the prototypes for exported functions
169		*/
170
171		/* regcomp.c */
172		extern int pg_regcomp(regex_t , const pg_wchar , size_t, int, Oid);
173		extern int pg_regexec(regex_t , const pg_wchar , size_t, size_t, rm_detail_t *, size_t, regmatch_t[], int);
174		extern int pg_regprefix(regex_t , pg_wchar , size_t );
175		extern void pg_regfree(regex_t *);
176		extern size_t pg_regerror(int, const regex_t , char , size_t);
177
178		/* regexp.c */
179		extern regex_t RE_compile_and_cache(text text_re, int cflags, Oid collation);
180		extern bool RE_compile_and_execute(text text_re, char dat, int dat_len,
181		int cflags, Oid collation,
182		int nmatch, regmatch_t *pmatch);
183
184		#endif /* _REGEX_H_ */

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Created: 2022-03-09 17:30