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Version 3.0 01-Feb-00 |
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1. Add support for the /+ modifier to perltest (to output $` like it does in |
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pcretest). |
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2. Add support for the /g modifier to perltest. |
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3. Fix pcretest so that it behaves even more like Perl for /g when the pattern |
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matches null strings. |
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4. Fix perltest so that it doesn't do unwanted things when fed an empty |
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pattern. Perl treats empty patterns specially - it reuses the most recent |
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pattern, which is not what we want. Replace // by /(?#)/ in order to avoid this |
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effect. |
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5. The POSIX interface was broken in that it was just handing over the POSIX |
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captured string vector to pcre_exec(), but (since release 2.00) PCRE has |
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required a bigger vector, with some working space on the end. This means that |
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the POSIX wrapper now has to get and free some memory, and copy the results. |
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6. Added some simple autoconf support, placing the test data and the |
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documentation in separate directories, re-organizing some of the |
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information files, and making it build pcre-config (a GNU standard). Also added |
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libtool support for building PCRE as a shared library, which is now the |
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default. |
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7. Got rid of the leading zero in the definition of PCRE_MINOR because 08 and |
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09 are not valid octal constants. Single digits will be used for minor values |
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less than 10. |
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8. Defined REG_EXTENDED and REG_NOSUB as zero in the POSIX header, so that |
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existing programs that set these in the POSIX interface can use PCRE without |
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modification. |
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9. Added a new function, pcre_fullinfo() with an extensible interface. It can |
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return all that pcre_info() returns, plus additional data. The pcre_info() |
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function is retained for compatibility, but is considered to be obsolete. |
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10. Added experimental recursion feature (?R) to handle one common case that |
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Perl 5.6 will be able to do with (?p{...}). |
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11. Added support for POSIX character classes like [:alpha:], which Perl is |
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adopting. |
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Version 2.08 31-Aug-99 |
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---------------------- |
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1. When startoffset was not zero and the pattern began with ".*", PCRE was not |
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trying to match at the startoffset position, but instead was moving forward to |
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the next newline as if a previous match had failed. |
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2. pcretest was not making use of PCRE_NOTEMPTY when repeating for /g and /G, |
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and could get into a loop if a null string was matched other than at the start |
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of the subject. |
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3. Added definitions of PCRE_MAJOR and PCRE_MINOR to pcre.h so the version can |
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be distinguished at compile time, and for completeness also added PCRE_DATE. |
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5. Added Paul Sokolovsky's minor changes to make it easy to compile a Win32 DLL |
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in GnuWin32 environments. |
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Version 2.07 29-Jul-99 |
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1. The documentation is now supplied in plain text form and HTML as well as in |
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the form of man page sources. |
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2. C++ compilers don't like assigning (void *) values to other pointer types. |
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In particular this affects malloc(). Although there is no problem in Standard |
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C, I've put in casts to keep C++ compilers happy. |
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3. Typo on pcretest.c; a cast of (unsigned char *) in the POSIX regexec() call |
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should be (const char *). |
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4. If NOPOSIX is defined, pcretest.c compiles without POSIX support. This may |
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be useful for non-Unix systems who don't want to bother with the POSIX stuff. |
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However, I haven't made this a standard facility. The documentation doesn't |
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mention it, and the Makefile doesn't support it. |
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5. The Makefile now contains an "install" target, with editable destinations at |
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the top of the file. The pcretest program is not installed. |
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6. pgrep -V now gives the PCRE version number and date. |
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7. Fixed bug: a zero repetition after a literal string (e.g. /abcde{0}/) was |
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causing the entire string to be ignored, instead of just the last character. |
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8. If a pattern like /"([^\\"]+|\\.)*"/ is applied in the normal way to a |
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non-matching string, it can take a very, very long time, even for strings of |
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quite modest length, because of the nested recursion. PCRE now does better in |
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some of these cases. It does this by remembering the last required literal |
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character in the pattern, and pre-searching the subject to ensure it is present |
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before running the real match. In other words, it applies a heuristic to detect |
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some types of certain failure quickly, and in the above example, if presented |
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with a string that has no trailing " it gives "no match" very quickly. |
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9. A new runtime option PCRE_NOTEMPTY causes null string matches to be ignored; |
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other alternatives are tried instead. |
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Version 2.06 09-Jun-99 |
Version 2.06 09-Jun-99 |
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---------------------- |
---------------------- |
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Revision Log
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Patch