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1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
2<html>
3   <head>
4      <title>Boost.Regex: History</title>
5      <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
6      <link rel="stylesheet" type="text/css" href="../../../boost.css">
7   </head>
8   <body>
9      <P>
10         <TABLE id="Table1" cellSpacing="1" cellPadding="1" width="100%" border="0">
11            <TR>
12               <td valign="top" width="300">
13                  <h3><a href="../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
14               </td>
15               <TD width="353">
16                  <H1 align="center">Boost.Regex</H1>
17                  <H2 align="center">History</H2>
18               </TD>
19               <td width="50">
20                  <h3><a href="index.html"><img height="45" width="43" alt="Boost.Regex Index" src="uarrow.gif" border="0"></a></h3>
21               </td>
22            </TR>
23         </TABLE>
24      </P>
25      <HR>
26      <p></p>
27      <P>Boost 1.33.1</P>
28      <UL>
29         <LI>
30         Fixed broken makefiles.
31         <LI>
32         Fixed configuration setup to allow building with VC7.1 - STLport-4.6.2 when
33         using /Zc:wchar_t.
34         <LI>
35         Moved declarations class-inline in static_mutex.hpp so that SGI Irix compiler
36         can cope.
37         <LI>
38         Added needed standard library #includes to fileiter.hpp, regex_workaround.hpp
39         and cpp_regex_traits.hpp.
40         <LI>
41         Fixed a bug where non-greedy repeats could in certain strange curcumstances
42         repeat more times than their maximum value.
43         <LI>
44         Fixed the value returned by basic_regex&lt;&gt;::empty() from a default
45         constructed object.
46         <LI>
47         Changed the deffinition of regex_error to make it backwards compatible with
48         Boost-1.32.0.
49         <LI>
50         Disabled external templates for Intel C++ 8.0 and earlier - otherwise
51         unresolved references can occur.
52         <LI>
53         Rewritten extern template code for gcc so that only specific member functions
54         are exported: otherwise strange unresolved references can occur when linking
55         and mixing debug and non-debug code.
56         <LI>
57         Initialise all the data members of the unicode_iterators: this keeps gcc from
58         issuing needless warnings.
59         <LI>
60         Ported the ICU integration code to VC6 and VC7.
61         <LI>
62         Ensured code is STLport debug mode clean.
63         <LI>
64         Fixed lookbehind assertions so that fixed length repeats are permitted, and so
65         that regex iteration allows lookbehind to look back before the current search
66         range (into the last match).
67         <LI>
68         Fixed strange bug with non-greedy repeats inside forward lookahead assertions.
69         <LI>
70         Enabled negated character classes inside character sets.
71         <LI>
72         Fixed regression so that [a-z-] is a valid expression again.
73         <LI>
74            Fixed bug that allowed some invalid expressions to be accepted.</LI></UL>
75      <P>Boost 1.33.0.</P>
76      <UL>
77         <LI>
78         Completely rewritten expression parsing code, and traits class support; now
79         conforms to the standardization proposal.
80         <LI>
81            <STRONG>Breaking Change:</STRONG> The <A href="syntax_option_type.html">syntax
82               options</A> that can be passed to <A href="basic_regex.html">basic_regex
83               constructors</A> have been rationalized.&nbsp; The default option (perl) now
84            has a value of zero, and it is now clearly documented which options apply to
85            which <A href="syntax.html">regular expression syntax styles (perl,
86               POSIX-extended, POSIX-basic etc)</A>.&nbsp; Some of the more esoteric
87         options have now been removed, so there is the possibility that existing code
88         may fail to compile: however equivalent functionality should still be
89         available.
90         <LI>
91            <STRONG>Breaking Change: </STRONG>
92         POSIX-extended and POSIX-basic regular expressions now enforce the letter of
93         the POSIX standard much more closely than before.
94         <LI>
95            Added <A href="syntax_perl.html#Perl">support for (?imsx-imsx) constructs</A>.
96         <LI>
97            Added <A href="syntax_perl.html#Perl">support for lookbehind expressions
98               (?&lt;=positive-lookbehind) and (?&lt;!negative-lookbehind)</A>.
99         <LI>
100            Added <A href="syntax_perl.html#Perl">support for conditional expressions
101               (?(assertion)true-expresion|false-expression)</A>.
102         <LI>
103            Added <A href="mfc_strings.html">MFC/ATL string wrappers</A>.
104         <LI>
105            Added <A href="unicode.html">Unicode support; based on ICU</A>.
106         <LI>
107         Changed newline support to recognise \f as a line separator (all character
108         types), and \x85 as a line separator for wide characters / Unicode only.
109         <LI>
110            Added a new format flag <A href="match_flag_type.html"><code>format_literal</code></A>
111            that treats the replace string as a literal, rather than a Perl or Sed style <A href="format_syntax.html">
112               format string</A>.
113         <LI>
114            Errors are now reported by throwing exceptions of type <A href="bad_expression.html">
115               <code>regex_error</code></A>. The types used previously - <code>bad_expression</code>
116            and <code>bad_pattern</code> - are now just typedefs for <code>regex_error</code>.
117            Type <code>regex_error</code> has a couple of new members: <code>code()</code> to
118            report an error code rather than a string, and <code>position()</code> to
119            report where in the expression the error occured.</LI></UL>
120      <P>Boost 1.32.1.</P>
121      <UL>
122         <LI>
123            Fixed bug in partial matches of bounded repeats of '.'.</LI></UL>
124      <P>Boost 1.31.0.</P>
125      <UL>
126         <LI>
127         Completely rewritten pattern matching code - it is now up to 10 times faster
128         than before.
129         <LI>
130         Reorganized documentation.
131         <LI>
132            Deprecated all interfaces that are not part of the <A href="http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/papers/2003/n1429.htm">
133               regular expression standardization proposal</A>.
134         <LI>
135            Added <A href="regex_iterator.html">regex_iterator</A> and <A href="regex_token_iterator.html">
136               regex_token_iterator</A>
137         .
138         <LI>
139         Added support for Perl style independent sub-expressions.
140         <LI>
141            Added non-member operators to the<A href="sub_match.html"> sub_match class</A>,
142         so that you can compare sub_match's with strings, or add them to a string to
143         produce a new string.
144         <LI>
145            Added experimental support for <A href="captures.html">extended capture
146               information</A>.
147         <LI>
148            Changed the match flags so that they are a distinct type (not an integer), if
149            you try to pass the match flags as an integer rather than<A href="match_flag_type.html">
150               match_flag_type</A> to the regex algorithms then you will now get a compiler
151            error.</LI></UL>
152      <P>
153         <HR>
154      <P></P>
155      <p>Revised&nbsp; 
156         <!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan --> 
157         28 June 2004&nbsp; 
158         <!--webbot bot="Timestamp" endspan i-checksum="39359" --></p>
159      <p><i>© Copyright John Maddock&nbsp;1998-
160            <!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%Y" startspan -->  2004<!--webbot bot="Timestamp" endspan i-checksum="39359" --></i></p>
161      <P><I>Use, modification and distribution are subject to the Boost Software License,
162            Version 1.0. (See accompanying file <A href="../../../LICENSE_1_0.txt">LICENSE_1_0.txt</A>
163            or copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>)</I></P>
164   </body>
165</html>
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