/[pcre]/code/trunk/doc/pcre_compile2.3
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Contents of /code/trunk/doc/pcre_compile2.3

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Revision 155 - (show annotations) (download)
Tue Apr 24 13:36:11 2007 UTC (7 years ago) by ph10
File size: 2822 byte(s)
Tidies and final updates for 7.1.

1 .TH PCRE_COMPILE2 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 .B pcre *pcre_compile2(const char *\fIpattern\fP, int \fIoptions\fP,
11 .ti +5n
12 .B int *\fIerrorcodeptr\fP,
13 .ti +5n
14 .B const char **\fIerrptr\fP, int *\fIerroffset\fP,
15 .ti +5n
16 .B const unsigned char *\fItableptr\fP);
17 .
18 .SH DESCRIPTION
19 .rs
20 .sp
21 This function compiles a regular expression into an internal form. It is the
22 same as \fBpcre_compile()\fP, except for the addition of the \fIerrorcodeptr\fP
23 argument. The arguments are:
24
25 .sp
26 \fIpattern\fR A zero-terminated string containing the
27 regular expression to be compiled
28 \fIoptions\fR Zero or more option bits
29 \fIerrorcodeptr\fP Where to put an error code
30 \fIerrptr\fR Where to put an error message
31 \fIerroffset\fR Offset in pattern where error was found
32 \fItableptr\fR Pointer to character tables, or NULL to
33 use the built-in default
34 .sp
35 The option bits are:
36 .sp
37 PCRE_ANCHORED Force pattern anchoring
38 PCRE_AUTO_CALLOUT Compile automatic callouts
39 PCRE_CASELESS Do caseless matching
40 PCRE_DOLLAR_ENDONLY $ not to match newline at end
41 PCRE_DOTALL . matches anything including NL
42 PCRE_DUPNAMES Allow duplicate names for subpatterns
43 PCRE_EXTENDED Ignore whitespace and # comments
44 PCRE_EXTRA PCRE extra features
45 (not much use currently)
46 PCRE_FIRSTLINE Force matching to be before newline
47 PCRE_MULTILINE ^ and $ match newlines within data
48 PCRE_NEWLINE_ANY Recognize any Unicode newline sequence
49 PCRE_NEWLINE_ANYCRLF Recognize CR, LF, and CRLF as newline 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_UNGREEDY Invert greediness of quantifiers
56 PCRE_UTF8 Run in UTF-8 mode
57 PCRE_NO_UTF8_CHECK Do not check the pattern for UTF-8
58 validity (only relevant if
59 PCRE_UTF8 is set)
60 .sp
61 PCRE must be built with UTF-8 support in order to use PCRE_UTF8 and
62 PCRE_NO_UTF8_CHECK.
63 .P
64 The yield of the function is a pointer to a private data structure that
65 contains the compiled pattern, or NULL if an error was detected. Note that
66 compiling regular expressions with one version of PCRE for use with a different
67 version is not guaranteed to work and may cause crashes.
68 .P
69 There is a complete description of the PCRE native API in the
70 .\" HREF
71 \fBpcreapi\fR
72 .\"
73 page and a description of the POSIX API in the
74 .\" HREF
75 \fBpcreposix\fR
76 .\"
77 page.

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