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authorLeo Tenenbaum <pommicket@gmail.com>2018-08-20 21:12:06 -0400
committerLeo Tenenbaum <pommicket@gmail.com>2018-08-20 21:12:06 -0400
commit63e87c2d0c9d263f14c77b68f85c67d46ece82a9 (patch)
tree6260365cbf7d24f37d27669e8538227fcb72e243 /gtk+-mingw/share/man/man3/pcre_exec.3
parenta4460f6d9453bbd7e584937686449cef3e19f052 (diff)
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-.TH PCRE_EXEC 3 "13 January 2012" "PCRE 8.30"
-.SH NAME
-PCRE - Perl-compatible regular expressions
-.SH SYNOPSIS
-.rs
-.sp
-.B #include <pcre.h>
-.PP
-.SM
-.B int pcre_exec(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
-.ti +5n
-.B "const char *\fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
-.ti +5n
-.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP);
-.PP
-.B int pcre16_exec(const pcre16 *\fIcode\fP, "const pcre16_extra *\fIextra\fP,"
-.ti +5n
-.B "PCRE_SPTR16 \fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
-.ti +5n
-.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP);
-.
-.SH DESCRIPTION
-.rs
-.sp
-This function matches a compiled regular expression against a given subject
-string, using a matching algorithm that is similar to Perl's. It returns
-offsets to captured substrings. Its arguments are:
-.sp
- \fIcode\fP Points to the compiled pattern
- \fIextra\fP Points to an associated \fBpcre[16]_extra\fP structure,
- or is NULL
- \fIsubject\fP Points to the subject string
- \fIlength\fP Length of the subject string, in bytes
- \fIstartoffset\fP Offset in bytes in the subject at which to
- start matching
- \fIoptions\fP Option bits
- \fIovector\fP Points to a vector of ints for result offsets
- \fIovecsize\fP Number of elements in the vector (a multiple of 3)
-.sp
-The options are:
-.sp
- PCRE_ANCHORED Match only at the first position
- PCRE_BSR_ANYCRLF \eR matches only CR, LF, or CRLF
- PCRE_BSR_UNICODE \eR matches all Unicode line endings
- PCRE_NEWLINE_ANY Recognize any Unicode newline sequence
- PCRE_NEWLINE_ANYCRLF Recognize CR, LF, & CRLF as newline sequences
- PCRE_NEWLINE_CR Recognize CR as the only newline sequence
- PCRE_NEWLINE_CRLF Recognize CRLF as the only newline sequence
- PCRE_NEWLINE_LF Recognize LF as the only newline sequence
- PCRE_NOTBOL Subject string is not the beginning of a line
- PCRE_NOTEOL Subject string is not the end of a line
- PCRE_NOTEMPTY An empty string is not a valid match
- PCRE_NOTEMPTY_ATSTART An empty string at the start of the subject
- is not a valid match
- PCRE_NO_START_OPTIMIZE Do not do "start-match" optimizations
- PCRE_NO_UTF16_CHECK Do not check the subject for UTF-16
- validity (only relevant if PCRE_UTF16
- was set at compile time)
- PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8
- validity (only relevant if PCRE_UTF8
- was set at compile time)
- PCRE_PARTIAL ) Return PCRE_ERROR_PARTIAL for a partial
- PCRE_PARTIAL_SOFT ) match if no full matches are found
- PCRE_PARTIAL_HARD Return PCRE_ERROR_PARTIAL for a partial match
- if that is found before a full match
-.sp
-For details of partial matching, see the
-.\" HREF
-\fBpcrepartial\fP
-.\"
-page. A \fBpcre_extra\fP structure contains the following fields:
-.sp
- \fIflags\fP Bits indicating which fields are set
- \fIstudy_data\fP Opaque data from \fBpcre[16]_study()\fP
- \fImatch_limit\fP Limit on internal resource use
- \fImatch_limit_recursion\fP Limit on internal recursion depth
- \fIcallout_data\fP Opaque data passed back to callouts
- \fItables\fP Points to character tables or is NULL
- \fImark\fP For passing back a *MARK pointer
- \fIexecutable_jit\fP Opaque data from JIT compilation
-.sp
-The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
-PCRE_EXTRA_MATCH_LIMIT_RECURSION, PCRE_EXTRA_CALLOUT_DATA,
-PCRE_EXTRA_TABLES, PCRE_EXTRA_MARK and PCRE_EXTRA_EXECUTABLE_JIT.
-.P
-There is a complete description of the PCRE native API in the
-.\" HREF
-\fBpcreapi\fP
-.\"
-page and a description of the POSIX API in the
-.\" HREF
-\fBpcreposix\fP
-.\"
-page.