From: Jim Cromie <jcromie@cpan.org>
Date: Sun, 18 Nov 2007 18:01:13 +0000 (-0700)
Subject: rc1 patch - delta, comment nits
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=e15dad31518e417fb393c47e2ea49139c989feee;p=p5sagit%2Fp5-mst-13.2.git

rc1 patch - delta, comment nits
Message-ID: <4740E059.30808@gmail.com>

p4raw-id: //depot/perl@32401
---

diff --git a/pod/perl5100delta.pod b/pod/perl5100delta.pod
index b37a7dc..b3c14d6 100644
--- a/pod/perl5100delta.pod
+++ b/pod/perl5100delta.pod
@@ -111,10 +111,10 @@ nested balanced angle brackets:
      $                      # end of line
     /x
 
-Note, users experienced with PCRE will find that the Perl implementation
-of this feature differs from the PCRE one in that it is possible to
-backtrack into a recursed pattern, whereas in PCRE the recursion is
-atomic or "possessive" in nature. (Yves Orton)
+PCRE users should note that Perl's recursive regex feature allows
+backtracking into a recursed pattern, whereas in PCRE the recursion is
+atomic or "possessive" in nature.  As in the example above, you can
+add (?>) to control this selectively.  (Yves Orton)
 
 =item Named Capture Buffers
 
@@ -124,7 +124,7 @@ It's possible to backreference to a named buffer with the C<< \k<NAME> >>
 syntax. In code, the new magical hashes C<%+> and C<%-> can be used to
 access the contents of the capture buffers.
 
-Thus, to replace all doubled chars, one could write
+Thus, to replace all doubled chars with a single copy, one could write
 
     s/(?<letter>.)\k<letter>/$+{letter}/g
 
@@ -1036,7 +1036,7 @@ released.
 =item Aho-Corasick start-point optimisation
 
 When a pattern starts with a trie-able alternation and there aren't
-better optimisations available the regex engine will use Aho-Corasick
+better optimisations available, the regex engine will use Aho-Corasick
 matching to find the start point. (Yves Orton)
 
 =back
diff --git a/sv.c b/sv.c
index 7d3c583..824db49 100644
--- a/sv.c
+++ b/sv.c
@@ -544,7 +544,8 @@ Perl_sv_clean_all(pTHX)
   memory in the last arena-set (1/2 on average).  In trade, we get
   back the 1st slot in each arena (ie 1.7% of a CV-arena, less for
   smaller types).  The recovery of the wasted space allows use of
-  small arenas for large, rare body types,
+  small arenas for large, rare body types, by changing array* fields
+  in body_details_by_type[] below.
 */
 struct arena_desc {
     char       *arena;		/* the raw storage, allocated aligned */
@@ -555,7 +556,7 @@ struct arena_desc {
 struct arena_set;
 
 /* Get the maximum number of elements in set[] such that struct arena_set
-   will fit within PERL_ARENA_SIZE, which is probabably just under 4K, and
+   will fit within PERL_ARENA_SIZE, which is probably just under 4K, and
    therefore likely to be 1 aligned memory page.  */
 
 #define ARENAS_PER_SET  ((PERL_ARENA_SIZE - sizeof(struct arena_set*) \