/[pcre]/code/trunk/NEWS
ViewVC logotype

Contents of /code/trunk/NEWS

Parent Directory Parent Directory | Revision Log Revision Log


Revision 53 - (hide annotations) (download)
Sat Feb 24 21:39:42 2007 UTC (7 years, 2 months ago) by nigel
File size: 3518 byte(s)
Load pcre-3.5 into code/trunk.

1 nigel 41 News about PCRE releases
2     ------------------------
3    
4 nigel 53 Release 3.5 15-Aug-01
5     ---------------------
6    
7     1. The configuring system has been upgraded to use later versions of autoconf
8     and libtool. By default it builds both a shared and a static library if the OS
9     supports it. You can use --disable-shared or --disable-static on the configure
10     command if you want only one of them.
11    
12     2. The pcretest utility is now installed along with pcregrep because it is
13     useful for users (to test regexs) and by doing this, it automatically gets
14     relinked by libtool. The documentation has been turned into a man page, so
15     there are now .1, .txt, and .html versions in /doc.
16    
17     3. Upgrades to pcregrep:
18     (i) Added long-form option names like gnu grep.
19     (ii) Added --help to list all options with an explanatory phrase.
20     (iii) Added -r, --recursive to recurse into sub-directories.
21     (iv) Added -f, --file to read patterns from a file.
22    
23     4. Added --enable-newline-is-cr and --enable-newline-is-lf to the configure
24     script, to force use of CR or LF instead of \n in the source. On non-Unix
25     systems, the value can be set in config.h.
26    
27     5. The limit of 200 on non-capturing parentheses is a _nesting_ limit, not an
28     absolute limit. Changed the text of the error message to make this clear, and
29     likewise updated the man page.
30    
31     6. The limit of 99 on the number of capturing subpatterns has been removed.
32     The new limit is 65535, which I hope will not be a "real" limit.
33    
34    
35 nigel 49 Release 3.3 01-Aug-00
36     ---------------------
37    
38     There is some support for UTF-8 character strings. This is incomplete and
39     experimental. The documentation describes what is and what is not implemented.
40     Otherwise, this is just a bug-fixing release.
41    
42    
43 nigel 43 Release 3.0 01-Feb-00
44     ---------------------
45 nigel 41
46 nigel 43 1. A "configure" script is now used to configure PCRE for Unix systems. It
47     builds a Makefile, a config.h file, and the pcre-config script.
48    
49     2. PCRE is built as a shared library by default.
50    
51     3. There is support for POSIX classes such as [:alpha:].
52    
53     5. There is an experimental recursion feature.
54    
55 nigel 41 ----------------------------------------------------------------------------
56     IMPORTANT FOR THOSE UPGRADING FROM VERSIONS BEFORE 2.00
57    
58     Please note that there has been a change in the API such that a larger
59     ovector is required at matching time, to provide some additional workspace.
60     The new man page has details. This change was necessary in order to support
61     some of the new functionality in Perl 5.005.
62    
63     IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.00
64    
65     Another (I hope this is the last!) change has been made to the API for the
66     pcre_compile() function. An additional argument has been added to make it
67     possible to pass over a pointer to character tables built in the current
68     locale by pcre_maketables(). To use the default tables, this new arguement
69     should be passed as NULL.
70    
71     IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.05
72    
73     Yet another (and again I hope this really is the last) change has been made
74     to the API for the pcre_exec() function. An additional argument has been
75     added to make it possible to start the match other than at the start of the
76     subject string. This is important if there are lookbehinds. The new man
77     page has the details, but you just want to convert existing programs, all
78     you need to do is to stick in a new fifth argument to pcre_exec(), with a
79     value of zero. For example, change
80    
81     pcre_exec(pattern, extra, subject, length, options, ovec, ovecsize)
82     to
83     pcre_exec(pattern, extra, subject, length, 0, options, ovec, ovecsize)
84    
85     ****

webmaster@exim.org
ViewVC Help
Powered by ViewVC 1.1.12