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revision 96 by nigel, Fri Mar 2 13:10:43 2007 UTC revision 182 by ph10, Wed Jun 13 15:09:54 2007 UTC
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1  News about PCRE releases  News about PCRE releases
2  ------------------------  ------------------------
4  Release 7.0 23-Nov-06  
5    Release 7.2 13-Jun-07
6    ---------------------
8    WARNING: saved patterns that were compiled by earlier versions of PCRE must be
9    recompiled for use with 7.2 (necessitated by the addition of \K, \h, \H, \v,
10    and \V).
12    Correction to the notes for 7.1: the note about shared libraries for Windows is
13    wrong. Previously, three libraries were built, but each could function
14    independently. For example, the pcreposix library also included all the
15    functions from the basic pcre library. The change is that the three libraries
16    are no longer independent. They are like the Unix libraries. To use the
17    pcreposix functions, for example, you need to link with both the pcreposix and
18    the basic pcre library.
20    Some more features from Perl 5.10 have been added:
22      (?-n) and (?+n) relative references for recursion and subroutines.
24      (?(-n) and (?(+n) relative references as conditions.
26      \k{name} and \g{name} are synonyms for \k<name>.
28      \K to reset the start of the matched string; for example, (foo)\Kbar
29      matches bar preceded by foo, but only sets bar as the matched string.
31      (?| introduces a group where the capturing parentheses in each alternative
32      start from the same number; for example, (?|(abc)|(xyz)) sets capturing
33      parentheses number 1 in both cases.
35      \h, \H, \v, \V match horizontal and vertical whitespace, respectively.
38    Release 7.1 24-Apr-07
39    ---------------------
41    There is only one new feature in this release: a linebreak setting of
42    PCRE_NEWLINE_ANYCRLF. It is a cut-down version of PCRE_NEWLINE_ANY, which
43    recognizes only CRLF, CR, and LF as linebreaks.
45    A few bugs are fixed (see ChangeLog for details), but the major change is a
46    complete re-implementation of the build system. This now has full Autotools
47    support and so is now "standard" in some sense. It should help with compiling
48    PCRE in a wide variety of environments.
50    NOTE: when building shared libraries for Windows, three dlls are now built,
51    called libpcre, libpcreposix, and libpcrecpp. Previously, everything was
52    included in a single dll.
54    Another important change is that the dftables auxiliary program is no longer
55    compiled and run at "make" time by default. Instead, a default set of character
56    tables (assuming ASCII coding) is used. If you want to use dftables to generate
57    the character tables as previously, add --enable-rebuild-chartables to the
58    "configure" command. You must do this if you are compiling PCRE to run on a
59    system that uses EBCDIC code.
61    There is a discussion about character tables in the README file. The default is
62    not to use dftables so that that there is no problem when cross-compiling.
65    Release 7.0 19-Dec-06
66  ---------------------  ---------------------
68  This release has a new major number because there have been some internal  This release has a new major number because there have been some internal

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