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Tristan Matthews04616462013-11-14 16:09:34 -05001.TH PCRE_COMPILE 3
2.SH NAME
3PCRE - Perl-compatible regular expressions
4.SH SYNOPSIS
5.rs
6.sp
7.B #include <pcre.h>
8.PP
9.SM
10.B pcre *pcre_compile(const char *\fIpattern\fP, int \fIoptions\fP,
11.ti +5n
12.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
13.ti +5n
14.B const unsigned char *\fItableptr\fP);
15.
16.SH DESCRIPTION
17.rs
18.sp
19This function compiles a regular expression into an internal form. It is the
20same as \fBpcre_compile2()\fP, except for the absence of the \fIerrorcodeptr\fP
21argument. Its arguments are:
22.sp
23 \fIpattern\fP A zero-terminated string containing the
24 regular expression to be compiled
25 \fIoptions\fP Zero or more option bits
26 \fIerrptr\fP Where to put an error message
27 \fIerroffset\fP Offset in pattern where error was found
28 \fItableptr\fP Pointer to character tables, or NULL to
29 use the built-in default
30.sp
31The option bits are:
32.sp
33 PCRE_ANCHORED Force pattern anchoring
34 PCRE_AUTO_CALLOUT Compile automatic callouts
35 PCRE_BSR_ANYCRLF \eR matches only CR, LF, or CRLF
36 PCRE_BSR_UNICODE \eR matches all Unicode line endings
37 PCRE_CASELESS Do caseless matching
38 PCRE_DOLLAR_ENDONLY $ not to match newline at end
39 PCRE_DOTALL . matches anything including NL
40 PCRE_DUPNAMES Allow duplicate names for subpatterns
41 PCRE_EXTENDED Ignore whitespace and # comments
42 PCRE_EXTRA PCRE extra features
43 (not much use currently)
44 PCRE_FIRSTLINE Force matching to be before newline
45 PCRE_JAVASCRIPT_COMPAT JavaScript compatibility
46 PCRE_MULTILINE ^ and $ match newlines within data
47 PCRE_NEWLINE_ANY Recognize any Unicode newline sequence
48 PCRE_NEWLINE_ANYCRLF Recognize CR, LF, and CRLF as newline
49 sequences
50 PCRE_NEWLINE_CR Set CR as the newline sequence
51 PCRE_NEWLINE_CRLF Set CRLF as the newline sequence
52 PCRE_NEWLINE_LF Set LF as the newline sequence
53 PCRE_NO_AUTO_CAPTURE Disable numbered capturing paren-
54 theses (named ones available)
55 PCRE_NO_UTF8_CHECK Do not check the pattern for UTF-8
56 validity (only relevant if
57 PCRE_UTF8 is set)
58 PCRE_UCP Use Unicode properties for \ed, \ew, etc.
59 PCRE_UNGREEDY Invert greediness of quantifiers
60 PCRE_UTF8 Run in UTF-8 mode
61.sp
62PCRE must be built with UTF-8 support in order to use PCRE_UTF8 and
63PCRE_NO_UTF8_CHECK, and with UCP support if PCRE_UCP is used.
64.P
65The yield of the function is a pointer to a private data structure that
66contains the compiled pattern, or NULL if an error was detected. Note that
67compiling regular expressions with one version of PCRE for use with a different
68version is not guaranteed to work and may cause crashes.
69.P
70There is a complete description of the PCRE native API in the
71.\" HREF
72\fBpcreapi\fP
73.\"
74page and a description of the POSIX API in the
75.\" HREF
76\fBpcreposix\fP
77.\"
78page.