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version 1.1.1.2, 2012/02/21 23:50:25	version 1.1.1.3, 2013/07/22 08:25:57
Line 26 man page, in case the conversion went wrong.	Line 26 man page, in case the conversion went wrong.
<P>	<P>
This document describes the two different algorithms that are available in PCRE	This document describes the two different algorithms that are available in PCRE
for matching a compiled regular expression against a given subject string. The	for matching a compiled regular expression against a given subject string. The
"standard" algorithm is the one provided by the <b>pcre_exec()</b> and	"standard" algorithm is the one provided by the <b>pcre_exec()</b>,
<b>pcre16_exec()</b> functions. These work in the same was as Perl's matching	<b>pcre16_exec()</b> and <b>pcre32_exec()</b> functions. These work in the same
function, and provide a Perl-compatible matching operation. The just-in-time	as as Perl's matching function, and provide a Perl-compatible matching operation.
(JIT) optimization that is described in the	The just-in-time (JIT) optimization that is described in the
<a href="pcrejit.html"><b>pcrejit</b></a>	<a href="pcrejit.html"><b>pcrejit</b></a>
documentation is compatible with these functions.	documentation is compatible with these functions.
</P>	</P>
<P>	<P>
An alternative algorithm is provided by the <b>pcre_dfa_exec()</b> and	An alternative algorithm is provided by the <b>pcre_dfa_exec()</b>,
<b>pcre16_dfa_exec()</b> functions; they operate in a different way, and are not	<b>pcre16_dfa_exec()</b> and <b>pcre32_dfa_exec()</b> functions; they operate in
Perl-compatible. This alternative has advantages and disadvantages compared	a different way, and are not Perl-compatible. This alternative has advantages
with the standard algorithm, and these are described below.	and disadvantages compared with the standard algorithm, and these are described
	below.
</P>	</P>
<P>	<P>
When there is only one possible way in which a given subject string can match a	When there is only one possible way in which a given subject string can match a
Line 167 always 1, and the value of the <i>capture_last</i> fie	Line 168 always 1, and the value of the <i>capture_last</i> fie
</P>	</P>
<P>	<P>
7. The \C escape sequence, which (in the standard algorithm) always matches a	7. The \C escape sequence, which (in the standard algorithm) always matches a
single data unit, even in UTF-8 or UTF-16 modes, is not supported in these	single data unit, even in UTF-8, UTF-16 or UTF-32 modes, is not supported in
modes, because the alternative algorithm moves through the subject string one	these modes, because the alternative algorithm moves through the subject string
character (not data unit) at a time, for all active paths through the tree.	one character (not data unit) at a time, for all active paths through the tree.
</P>	</P>
<P>	<P>
8. Except for (FAIL), the backtracking control verbs such as (PRUNE) are not	8. Except for (FAIL), the backtracking control verbs such as (PRUNE) are not

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