3 PCRE - Perl-compatible regular expressions
10 .B int pcre_exec(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
12 .B "const char *\fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
14 .B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP);
19 This function matches a compiled regular expression against a given subject
20 string, using a matching algorithm that is similar to Perl's. It returns
21 offsets to captured substrings. Its arguments are:
23 \fIcode\fP Points to the compiled pattern
24 \fIextra\fP Points to an associated \fBpcre_extra\fP structure,
26 \fIsubject\fP Points to the subject string
27 \fIlength\fP Length of the subject string, in bytes
28 \fIstartoffset\fP Offset in bytes in the subject at which to
30 \fIoptions\fP Option bits
31 \fIovector\fP Points to a vector of ints for result offsets
32 \fIovecsize\fP Number of elements in the vector (a multiple of 3)
36 PCRE_ANCHORED Match only at the first position
37 PCRE_BSR_ANYCRLF \eR matches only CR, LF, or CRLF
38 PCRE_BSR_UNICODE \eR matches all Unicode line endings
39 PCRE_NEWLINE_ANY Recognize any Unicode newline sequence
40 PCRE_NEWLINE_ANYCRLF Recognize CR, LF, and CRLF as newline sequences
41 PCRE_NEWLINE_CR Set CR as the newline sequence
42 PCRE_NEWLINE_CRLF Set CRLF as the newline sequence
43 PCRE_NEWLINE_LF Set LF as the newline sequence
44 PCRE_NOTBOL Subject is not the beginning of a line
45 PCRE_NOTEOL Subject is not the end of a line
46 PCRE_NOTEMPTY An empty string is not a valid match
47 PCRE_NO_START_OPTIMIZE Do not do "start-match" optimizations
48 PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8
49 validity (only relevant if PCRE_UTF8
50 was set at compile time)
51 PCRE_PARTIAL Return PCRE_ERROR_PARTIAL for a partial match
53 There are restrictions on what may appear in a pattern when partial matching is
54 requested. For details, see the
60 A \fBpcre_extra\fP structure contains the following fields:
62 \fIflags\fP Bits indicating which fields are set
63 \fIstudy_data\fP Opaque data from \fBpcre_study()\fP
64 \fImatch_limit\fP Limit on internal resource use
65 \fImatch_limit_recursion\fP Limit on internal recursion depth
66 \fIcallout_data\fP Opaque data passed back to callouts
67 \fItables\fP Points to character tables or is NULL
69 The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
70 PCRE_EXTRA_MATCH_LIMIT_RECURSION, PCRE_EXTRA_CALLOUT_DATA, and
73 There is a complete description of the PCRE native API in the
77 page and a description of the POSIX API in the
