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Contents of /code/trunk/doc/pcre_copy_substring.3

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Revision 1055 - (hide annotations) (download)
Tue Oct 16 15:53:30 2012 UTC (7 months ago) by chpe
File size: 1547 byte(s)
pcre32: Add 32-bit library

Create libpcre32 that operates on 32-bit characters (UTF-32).

This turned out to be surprisingly simple after the UTF-16 support
was introduced; mostly just extra ifdefs and adjusting and adding
some tests.
1 chpe 1055 .TH PCRE_COPY_SUBSTRING 3 "24 June 2012" "PCRE 8.30"
2 nigel 63 .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 nigel 75 .B int pcre_copy_substring(const char *\fIsubject\fP, int *\fIovector\fP,
11 nigel 63 .ti +5n
12 nigel 75 .B int \fIstringcount\fP, int \fIstringnumber\fP, char *\fIbuffer\fP,
13 nigel 63 .ti +5n
14 nigel 75 .B int \fIbuffersize\fP);
15 ph10 868 .PP
16     .B int pcre16_copy_substring(PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
17     .ti +5n
18     .B int \fIstringcount\fP, int \fIstringnumber\fP, PCRE_UCHAR16 *\fIbuffer\fP,
19     .ti +5n
20     .B int \fIbuffersize\fP);
21 chpe 1055 .PP
22     .B int pcre32_copy_substring(PCRE_SPTR32 \fIsubject\fP, int *\fIovector\fP,
23     .ti +5n
24     .B int \fIstringcount\fP, int \fIstringnumber\fP, PCRE_UCHAR32 *\fIbuffer\fP,
25     .ti +5n
26     .B int \fIbuffersize\fP);
27 nigel 75 .
28 nigel 63 .SH DESCRIPTION
29     .rs
30     .sp
31     This is a convenience function for extracting a captured substring into a given
32     buffer. The arguments are:
33 nigel 75 .sp
34     \fIsubject\fP Subject that has been successfully matched
35 chpe 1055 \fIovector\fP Offset vector that \fBpcre[16|32]_exec()\fP used
36     \fIstringcount\fP Value returned by \fBpcre[16|32]_exec()\fP
37 nigel 75 \fIstringnumber\fP Number of the required substring
38     \fIbuffer\fP Buffer to receive the string
39     \fIbuffersize\fP Size of buffer
40     .sp
41 nigel 93 The yield is the length of the string, PCRE_ERROR_NOMEMORY if the buffer was
42 nigel 63 too small, or PCRE_ERROR_NOSUBSTRING if the string number is invalid.
43 nigel 75 .P
44     There is a complete description of the PCRE native API in the
45 nigel 63 .\" HREF
46 nigel 75 \fBpcreapi\fP
47 nigel 63 .\"
48 nigel 75 page and a description of the POSIX API in the
49     .\" HREF
50     \fBpcreposix\fP
51     .\"
52 nigel 63 page.

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