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# pcreposix.h

    00001 /*************************************************
    00002 *       Perl-Compatible Regular Expressions      *
    00003 *************************************************/
    00004
    00005 #ifndef _PCREPOSIX_H
    00006 #define _PCREPOSIX_H
    00007
    00008 /* This is the header for the POSIX wrapper interface to the PCRE Perl-
    00009 Compatible Regular Expression library. It defines the things POSIX says should
    00010 be there. I hope.
    00011
    00012             Copyright (c) 1997-2004 University of Cambridge
    00013
    00014 -----------------------------------------------------------------------------
    00015 Redistribution and use in source and binary forms, with or without
    00016 modification, are permitted provided that the following conditions are met:
    00017
    00018     * Redistributions of source code must retain the above copyright notice,
    00019       this list of conditions and the following disclaimer.
    00020
    00021     * Redistributions in binary form must reproduce the above copyright
    00022       notice, this list of conditions and the following disclaimer in the
    00023       documentation and/or other materials provided with the distribution.
    00024
    00025     * Neither the name of the University of Cambridge nor the names of its
    00026       contributors may be used to endorse or promote products derived from
    00027       this software without specific prior written permission.
    00028
    00029 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    00030 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    00031 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    00032 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    00033 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    00034 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    00035 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    00036 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    00037 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    00038 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    00039 POSSIBILITY OF SUCH DAMAGE.
    00040 -----------------------------------------------------------------------------
    00041 */
    00042
    00043 /* Have to include stdlib.h in order to ensure that size_t is defined. */
    00044
    00045 #include <stdlib.h>
    00046
    00047 /* Allow for C++ users */
    00048
    00049 #ifdef __cplusplus
    00050 extern "C" {
    00051 #endif
    00052
    00053 /* Options defined by POSIX. */
    00054
    00055 #define REG_ICASE     0x01
    00056 #define REG_NEWLINE   0x02
    00057 #define REG_NOTBOL    0x04
    00058 #define REG_NOTEOL    0x08
    00059
    00060 /* These are not used by PCRE, but by defining them we make it easier
    00061 to slot PCRE into existing programs that make POSIX calls. */
    00062
    00063 #define REG_EXTENDED  0
    00064 #define REG_NOSUB     0
    00065
    00066 /* Error values. Not all these are relevant or used by the wrapper. */
    00067
    00068 enum {
    00069   REG_ASSERT = 1,  /* internal error ? */
    00070   REG_BADBR,       /* invalid repeat counts in {} */
    00071   REG_BADPAT,      /* pattern error */
    00072   REG_BADRPT,      /* ? * + invalid */
    00073   REG_EBRACE,      /* unbalanced {} */
    00074   REG_EBRACK,      /* unbalanced [] */
    00075   REG_ECOLLATE,    /* collation error - not relevant */
    00076   REG_ECTYPE,      /* bad class */
    00077   REG_EESCAPE,     /* bad escape sequence */
    00078   REG_EMPTY,       /* empty expression */
    00079   REG_EPAREN,      /* unbalanced () */
    00080   REG_ERANGE,      /* bad range inside [] */
    00081   REG_ESIZE,       /* expression too big */
    00082   REG_ESPACE,      /* failed to get memory */
    00083   REG_ESUBREG,     /* bad back reference */
    00084   REG_INVARG,      /* bad argument */
    00085   REG_NOMATCH      /* match failed */
    00086 };
    00087
    00088
    00089 /* The structure representing a compiled regular expression. */
    00090
    00091 typedef struct {
    00092   void *re_pcre;
    00093   size_t re_nsub;
    00094   size_t re_erroffset;
    00095 } regex_t;
    00096
    00097 /* The structure in which a captured offset is returned. */
    00098
    00099 typedef int regoff_t;
    00100
    00101 typedef struct {
    00102   regoff_t rm_so;
    00103   regoff_t rm_eo;
    00104 } regmatch_t;
    00105
    00106 /* The functions */
    00107
    00108 extern int regcomp(regex_t *, const char *, int);
    00109 extern int regexec(const regex_t *, const char *, size_t, regmatch_t *, int);
    00110 extern size_t regerror(int, const regex_t *, char *, size_t);
    00111 extern void regfree(regex_t *);
    00112
    00113 #ifdef __cplusplus
    00114 }   /* extern "C" */
    00115 #endif
    00116
    00117 #endif /* End of pcreposix.h */