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Diff for /embedaddon/pcre/doc/pcrejit.3 between versions 1.1 and 1.1.1.2

version 1.1, 2012/02/21 23:05:51	version 1.1.1.2, 2012/02/21 23:50:25
Line 7 PCRE - Perl-compatible regular expressions	Line 7 PCRE - Perl-compatible regular expressions
Just-in-time compiling is a heavyweight optimization that can greatly speed up	Just-in-time compiling is a heavyweight optimization that can greatly speed up
pattern matching. However, it comes at the cost of extra processing before the	pattern matching. However, it comes at the cost of extra processing before the
match is performed. Therefore, it is of most benefit when the same pattern is	match is performed. Therefore, it is of most benefit when the same pattern is
going to be matched many times. This does not necessarily mean many calls of	going to be matched many times. This does not necessarily mean many calls of a
\fPpcre_exec()\fP; if the pattern is not anchored, matching attempts may take	matching function; if the pattern is not anchored, matching attempts may take
place many times at various positions in the subject, even for a single call to	place many times at various positions in the subject, even for a single call.
\fBpcre_exec()\fP. If the subject string is very long, it may still pay to use	Therefore, if the subject string is very long, it may still pay to use JIT for
JIT for one-off matches.	one-off matches.
.P	.P
JIT support applies only to the traditional matching function,	JIT support applies only to the traditional Perl-compatible matching function.
\fBpcre_exec()\fP. It does not apply when \fBpcre_dfa_exec()\fP is being used.	It does not apply when the DFA matching function is being used. The code for
The code for this support was written by Zoltan Herczeg.	this support was written by Zoltan Herczeg.
.	.
.	.
	.SH "8-BIT and 16-BIT SUPPORT"
	.rs
	.sp
	JIT support is available for both the 8-bit and 16-bit PCRE libraries. To keep
	this documentation simple, only the 8-bit interface is described in what
	follows. If you are using the 16-bit library, substitute the 16-bit functions
	and 16-bit structures (for example, \fIpcre16_jit_stack\fP instead of
	\fIpcre_jit_stack\fP).
	.
	.
.SH "AVAILABILITY OF JIT SUPPORT"	.SH "AVAILABILITY OF JIT SUPPORT"
.rs	.rs
.sp	.sp
Line 28 JIT. The support is limited to the following hardware	Line 38 JIT. The support is limited to the following hardware
ARM v5, v7, and Thumb2	ARM v5, v7, and Thumb2
Intel x86 32-bit and 64-bit	Intel x86 32-bit and 64-bit
MIPS 32-bit	MIPS 32-bit
Power PC 32-bit and 64-bit (experimental)	Power PC 32-bit and 64-bit
.sp	.sp
The Power PC support is designated as experimental because it has not been	The Power PC support is designated as experimental because it has not been
fully tested. If --enable-jit is set on an unsupported platform, compilation	fully tested. If --enable-jit is set on an unsupported platform, compilation
Line 357 Cambridge CB2 3QH, England.	Line 367 Cambridge CB2 3QH, England.
.rs	.rs
.sp	.sp
.nf	.nf
Last updated: 26 November 2011	Last updated: 08 January 2012
Copyright (c) 1997-2011 University of Cambridge.	Copyright (c) 1997-2012 University of Cambridge.
.fi	.fi

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	Added in v.1.1.1.2