39 lines
1.1 KiB
Groff
39 lines
1.1 KiB
Groff
.TH PCRE2_SUBSTRING_NUMBER_FROM_NAME 3 "21 October 2014" "PCRE2 10.00"
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.SH NAME
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PCRE2 - Perl-compatible regular expressions (revised API)
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.SH SYNOPSIS
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.rs
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.sp
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.B #include <pcre2.h>
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.PP
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.nf
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.B int pcre2_substring_number_from_name(const pcre2_code *\fIcode\fP,
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.B " PCRE2_SPTR \fIname\fP);"
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.fi
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.
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.SH DESCRIPTION
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.rs
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.sp
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This convenience function finds the number of a named substring capturing
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parenthesis in a compiled pattern, provided that it is a unique name. The
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function arguments are:
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.sp
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\fIcode\fP Compiled regular expression
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\fIname\fP Name whose number is required
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.sp
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The yield of the function is the number of the parenthesis if the name is
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found, or PCRE2_ERROR_NOSUBSTRING if it is not found. When duplicate names are
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allowed (PCRE2_DUPNAMES is set), if the name is not unique,
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PCRE2_ERROR_NOUNIQUESUBSTRING is returned. You can obtain the list of numbers
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with the same name by calling \fBpcre2_substring_nametable_scan()\fP.
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.P
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There is a complete description of the PCRE2 native API in the
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.\" HREF
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\fBpcre2api\fP
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.\"
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page and a description of the POSIX API in the
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.\" HREF
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\fBpcre2posix\fP
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.\"
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page.
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