--- code/trunk/doc/html/pcrecompat.html 2013/11/19 10:44:59 1403 +++ code/trunk/doc/html/pcrecompat.html 2013/11/19 15:36:57 1404 @@ -138,18 +138,24 @@

15. Perl recognizes comments in some places that PCRE does not, for example, between the ( and ? at the start of a subpattern. If the /x modifier is set, -Perl allows white space between ( and ? but PCRE never does, even if the -PCRE_EXTENDED option is set. +Perl allows white space between ( and ? (though current Perls warn that this is +deprecated) but PCRE never does, even if the PCRE_EXTENDED option is set.

-16. In PCRE, the upper/lower case character properties Lu and Ll are not +16. Perl, when in warning mode, gives warnings for character classes such as +[A-\d] or [a-[:digit:]]. It then treats the hyphens as literals. PCRE has no +warning features, so it gives an error in these cases because they are almost +certainly user mistakes. +

+

+17. In PCRE, the upper/lower case character properties Lu and Ll are not affected when case-independent matching is specified. For example, \p{Lu} always matches an upper case letter. I think Perl has changed in this respect; in the release at the time of writing (5.16), \p{Lu} and \p{Ll} match all letters, regardless of case, when case independence is specified.

-17. PCRE provides some extensions to the Perl regular expression facilities. +18. PCRE provides some extensions to the Perl regular expression facilities. Perl 5.10 includes new features that are not in earlier versions of Perl, some of which (such as named parentheses) have been in PCRE for some time. This list is with respect to Perl 5.10: @@ -220,7 +226,7 @@ REVISION

-Last updated: 19 March 2013 +Last updated: 10 November 2013
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