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Almost ready to merge with main branch now,

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These are mostly updates to the docs, with some compiler fixes and general warning suppressions.


[SVN r26648]
This commit is contained in:
John Maddock
2005-01-09 16:59:23 +00:00
parent 436ecdf654
commit 2d27c152c2
108 changed files with 8075 additions and 2431 deletions
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doc/syntax_basic.html
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@@ -60,7 +60,8 @@ boost::regex e2(my_expression, boost::regex::basic|boost::regex::icase);</PRE>
<H4>Marked sub-expressions:</H4>
<P>A section beginning \( and ending \) acts as a marked sub-expression.&nbsp;
Whatever matched the sub-expression is split out in a separate field by the
matching algorithms.&nbsp; Marked sub-expressions can also repeated, or referred-to by a back-reference.</P>
matching algorithms.&nbsp; Marked sub-expressions can also repeated, or
referred-to by a back-reference.</P>
<H4>Repeats:</H4>
<P>Any atom (a single character, a marked sub-expression, or a character class)
can be repeated with the * operator.</P>
@@ -133,7 +134,7 @@ aaaa</PRE>
<P>matches a NUL character.</P>
<H5>Equivalence classes:</H5>
<P>
An expression of the form [[=col=]], matches any character or collating element
An expression of the form[[=col=]], matches any character or collating element
whose primary sort key is the same as that for collating element <EM>col</EM>,
as with collating elements the name <EM>col</EM> may be a <A href="collating_names.html">
symbolic name</A>.&nbsp; A primary sort key is one that ignores case,
@@ -152,7 +153,11 @@ aaaa</PRE>
character.&nbsp; This can be used to make the special characters .[\*^$,
"ordinary".&nbsp; Note that the escape character loses its special meaning
inside a character set, so [\^] will match either a literal '\' or a '^'.</P>
<H3><A name="variations"></A>Variations</H3>
<H4>What Gets Matched</H4>
<P>When there is more that one way to match a regular expression, the "best"
possible match is obtained using the <A href="syntax_leftmost_longest.html">leftmost-longest
rule</A>.</P>
<H3>Variations</H3>
<H4><A name="grep"></A>Grep</H4>
<P>When an expression is compiled with the flag <EM>grep</EM> set, then the
expression is treated as a newline separated list of <A href="#Basic">POSIX-Basic</A>
@@ -192,6 +197,11 @@ aaaa</PRE>
<P>\&lt; matches zero characters only at the start of a word.</P>
<P>\&gt; matches zero characters only at the end of a word.</P>
</BLOCKQUOTE>
<P dir="ltr">Finally, you should note that emacs style regular expressions are
matched according to the <A href="syntax_perl.html#what">Perl "depth first search"
rules</A>.&nbsp; Emacs expressions are matched this way because they contain
Perl-like extensions, that do not interact well with the <A href="syntax_leftmost_longest.html">
POSIX-style leftmost-longest rule</A>.</P>
<H3><A name="options"></A>Options</H3>
<P>There are a <A href="syntax_option_type.html#basic">variety of flags</A> that
may be combined with the <EM>basic</EM> and <EM>grep</EM> options when