From 9de15fec376a8ff90a38fad0ff322c72c2995765 Mon Sep 17 00:00:00 2001 From: Karl Williamson Date: Mon, 20 Sep 2010 18:57:24 -0600 Subject: Add /d, /l, /u (infixed) regex modifiers This patch adds recognition of these modifiers, with appropriate action for d and l. u does nothing useful yet. This allows for the interpolation of a regex into another one without losing the character set semantics that it was compiled with, as for the first time, the semantics is now specified in the stringification as one of these modifiers. To this end, it allocates an unused bit in the structures. The off- sets change so as to not disturb other bits. --- pod/perldiag.pod | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'pod/perldiag.pod') diff --git a/pod/perldiag.pod b/pod/perldiag.pod index e725749275..c6806c1c13 100644 --- a/pod/perldiag.pod +++ b/pod/perldiag.pod @@ -4035,8 +4035,10 @@ where the problem was discovered. See L. <-- HERE shows in the regular expression about where the problem was discovered. This happens when using the C<(?^...)> construct to tell Perl to use the default regular expression modifiers, and you -redundantly specify a default modifier. For other causes, see -L. +redundantly specify a default modifier; or having a modifier that can't +be turned off (such as C<"p"> or C<"l">) after a minus; or specifying +more than one of the C<"d">, C<"l">, or C<"u"> modifiers. For other +causes, see L. =item Sequence \%s... not terminated in regex; marked by <-- HERE in m/%s/ -- cgit v1.2.1