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d4de0e6f1e
I was über lazy at first, so took libs from SM. But actually it's quite easy to compile, so let's update to latest version \o/.
55 lines
1.5 KiB
Groff
55 lines
1.5 KiB
Groff
.TH PCRE_STUDY 3 " 24 June 2012" "PCRE 8.30"
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.SH NAME
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PCRE - Perl-compatible regular expressions
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.SH SYNOPSIS
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.rs
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.sp
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.B #include <pcre.h>
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.PP
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.nf
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.B pcre_extra *pcre_study(const pcre *\fIcode\fP, int \fIoptions\fP,
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.B " const char **\fIerrptr\fP);"
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.sp
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.B pcre16_extra *pcre16_study(const pcre16 *\fIcode\fP, int \fIoptions\fP,
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.B " const char **\fIerrptr\fP);"
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.sp
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.B pcre32_extra *pcre32_study(const pcre32 *\fIcode\fP, int \fIoptions\fP,
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.B " const char **\fIerrptr\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 function studies a compiled pattern, to see if additional information can
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be extracted that might speed up matching. Its arguments are:
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.sp
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\fIcode\fP A compiled regular expression
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\fIoptions\fP Options for \fBpcre[16|32]_study()\fP
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\fIerrptr\fP Where to put an error message
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.sp
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If the function succeeds, it returns a value that can be passed to
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\fBpcre[16|32]_exec()\fP or \fBpcre[16|32]_dfa_exec()\fP via their \fIextra\fP
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arguments.
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.P
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If the function returns NULL, either it could not find any additional
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information, or there was an error. You can tell the difference by looking at
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the error value. It is NULL in first case.
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.P
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The only option is PCRE_STUDY_JIT_COMPILE. It requests just-in-time compilation
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if possible. If PCRE has been compiled without JIT support, this option is
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ignored. See the
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.\" HREF
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\fBpcrejit\fP
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.\"
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page for further details.
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.P
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There is a complete description of the PCRE native API in the
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.\" HREF
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\fBpcreapi\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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\fBpcreposix\fP
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.\"
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page.
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