Revision: 746
http://vcs.pcre.org/viewvc?view=rev&revision=746
Author: ph10
Date: 2011-11-15 15:07:02 +0000 (Tue, 15 Nov 2011)
Log Message:
-----------
Caseless matching of backreferences with fixed length repetitions was broken.
Modified Paths:
--------------
code/trunk/ChangeLog
code/trunk/pcre_compile.c
code/trunk/testdata/testinput1
code/trunk/testdata/testoutput1
Modified: code/trunk/ChangeLog
===================================================================
--- code/trunk/ChangeLog 2011-11-14 11:41:03 UTC (rev 745)
+++ code/trunk/ChangeLog 2011-11-15 15:07:02 UTC (rev 746)
@@ -20,7 +20,11 @@
5. Supporting of \x, \U and \u in JavaScript compatibility mode based on the
ECMA-262 standard.
+6. Lookbehinds such as (?<=a{2}b) that contained a fixed repetition were
+ erroneously being rejected as "not fixed length" if PCRE_CASELESS was set.
+ This bug was probably introduced by change 9 of 8.13.
+
Version 8.20 21-Oct-2011
------------------------
Modified: code/trunk/pcre_compile.c
===================================================================
--- code/trunk/pcre_compile.c 2011-11-14 11:41:03 UTC (rev 745)
+++ code/trunk/pcre_compile.c 2011-11-15 15:07:02 UTC (rev 746)
@@ -1646,6 +1646,7 @@
need to skip over a multibyte character in UTF8 mode. */
case OP_EXACT:
+ case OP_EXACTI:
branchlength += GET2(cc,1);
cc += 4;
#ifdef SUPPORT_UTF8
Modified: code/trunk/testdata/testinput1
===================================================================
--- code/trunk/testdata/testinput1 2011-11-14 11:41:03 UTC (rev 745)
+++ code/trunk/testdata/testinput1 2011-11-15 15:07:02 UTC (rev 746)
@@ -4251,4 +4251,14 @@
/[:a]xxx[b:]/
:xxx:
+/(?<=a{2})b/i
+ xaabc
+ ** Failers
+ xabc
+
+/(?<!a{2})b/i
+ xabc
+ ** Failers
+ xaabc
+
/-- End of testinput1 --/
Modified: code/trunk/testdata/testoutput1
===================================================================
--- code/trunk/testdata/testoutput1 2011-11-14 11:41:03 UTC (rev 745)
+++ code/trunk/testdata/testoutput1 2011-11-15 15:07:02 UTC (rev 746)
@@ -6952,4 +6952,20 @@
:xxx:
0: :xxx:
+/(?<=a{2})b/i
+ xaabc
+ 0: b
+ ** Failers
+No match
+ xabc
+No match
+
+/(?<!a{2})b/i
+ xabc
+ 0: b
+ ** Failers
+No match
+ xaabc
+No match
+
/-- End of testinput1 --/
