pcre-4.3/doc/pcre_exec.3

.TH PCRE 3
.SH NAME
PCRE - Perl-compatible regular expressions
.SH SYNOPSIS
.rs
.sp
.B #include <pcre.h>
.PP
.SM
.br
.B int pcre_exec(const pcre *\fIcode\fR, "const pcre_extra *\fIextra\fR,"
.ti +5n
.B "const char *\fIsubject\fR," int \fIlength\fR, int \fIstartoffset\fR,
.ti +5n
.B int \fIoptions\fR, int *\fIovector\fR, int \fIovecsize\fR);

.SH DESCRIPTION
.rs
.sp
This function matches a compiled regular expression against a given subject
string, and returns offsets to capturing subexpressions. Its arguments are:

  \fIcode\fR         Points to the compiled pattern
  \fIextra\fR        Points to an associated \fBpcre_extra\fR structure,
                 or is NULL
  \fIsubject\fR      Points to the subject string
  \fIlength\fR       Length of the subject string, in bytes
  \fIstartoffset\fR  Offset in bytes in the subject at which to
                 start matching
  \fIoptions\fR      Option bits
  \fIovector\fR      Points to a vector of ints for result offsets
  \fIovecsize\fR     Size of the vector (a multiple of 3)

The options are:

  PCRE_ANCHORED      Match only at the first position
  PCRE_NOTBOL        Subject is not the beginning of a line
  PCRE_NOTEOL        Subject is not the end of a line
  PCRE_NOTEMPTY      An empty string is not a valid match

There is a complete description of the PCRE API in the
.\" HREF
\fBpcreapi\fR
.\"
page.
1	.TH PCRE 3
2	.SH NAME
3	PCRE - Perl-compatible regular expressions
4	.SH SYNOPSIS
5	.rs
6	.sp
7	.B #include <pcre.h>
8	.PP
9	.SM
10	.br
11	.B int pcre_exec(const pcre \fIcode\fR, "const pcre_extra \fIextra\fR,"
12	.ti +5n
13	.B "const char *\fIsubject\fR," int \fIlength\fR, int \fIstartoffset\fR,
14	.ti +5n
15	.B int \fIoptions\fR, int *\fIovector\fR, int \fIovecsize\fR);
16
17	.SH DESCRIPTION
18	.rs
19	.sp
20	This function matches a compiled regular expression against a given subject
21	string, and returns offsets to capturing subexpressions. Its arguments are:
22
23	\fIcode\fR Points to the compiled pattern
24	\fIextra\fR Points to an associated \fBpcre_extra\fR structure,
25	or is NULL
26	\fIsubject\fR Points to the subject string
27	\fIlength\fR Length of the subject string, in bytes
28	\fIstartoffset\fR Offset in bytes in the subject at which to
29	start matching
30	\fIoptions\fR Option bits
31	\fIovector\fR Points to a vector of ints for result offsets
32	\fIovecsize\fR Size of the vector (a multiple of 3)
33
34	The options are:
35
36	PCRE_ANCHORED Match only at the first position
37	PCRE_NOTBOL Subject is not the beginning of a line
38	PCRE_NOTEOL Subject is not the end of a line
39	PCRE_NOTEMPTY An empty string is not a valid match
40
41	There is a complete description of the PCRE API in the
42	.\" HREF
43	\fBpcreapi\fR
44	.\"
45	page.