X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDevel%2FDeclare.pm;h=ed296868a7100e80a3d7308683f63bc0067aa8a1;hb=78bb475dd0c334ce6f507f501d7b9e1d8cbd8b0b;hp=8557b212b2c849aa0002748ea39f317f97d8b8a7;hpb=fb4e2a38b19e9f6cc64e1b8ade89c8c6890a93dc;p=p5sagit%2FDevel-Declare.git

diff --git a/lib/Devel/Declare.pm b/lib/Devel/Declare.pm
index 8557b21..ed29686 100644
--- a/lib/Devel/Declare.pm
+++ b/lib/Devel/Declare.pm
@@ -4,7 +4,7 @@ use strict;
 use warnings;
 use 5.008001;
 
-our $VERSION = '0.005009';
+our $VERSION = '0.006006';
 
 use constant DECLARE_NAME => 1;
 use constant DECLARE_PROTO => 2;
@@ -14,7 +14,7 @@ use constant DECLARE_PACKAGE => 8+1; # name implicit
 use vars qw(%declarators %declarator_handlers @ISA);
 use base qw(DynaLoader);
 use Scalar::Util 'set_prototype';
-use B::Hooks::OP::Check;
+use B::Hooks::OP::Check 0.19;
 
 bootstrap Devel::Declare;
 
@@ -513,8 +513,21 @@ things like C<q(this is a quote)>).
 
 Also it Does The Right Thing with nested delimiters (like C<q(this (is (a) quote))>).
 
-It returns the length of the expression matched.  Use C<get_lex_stuff> to
-get the actual matched text.
+It returns the effective length of the expression matched.  Really, what
+it returns is the difference in position between where the string started,
+within the buffer, and where it finished.  If the string extended across
+multiple lines then the contents of the buffer may have been completely
+replaced by the new lines, so this position difference is not the same
+thing as the actual length of the expression matched.  However, because
+moving backward in the buffer causes problems, the function arranges
+for the effective length to always be positive, padding the start of
+the buffer if necessary.
+
+Use C<get_lex_stuff> to get the actual matched text, the content of
+the string.  Because of the behaviour around multiline strings, you
+can't reliably get this from the buffer.  In fact, after the function
+returns, you can't rely on any content of the buffer preceding the end
+of the string.
 
 =head4 C<get_lex_stuff>