1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
--- code/trunk/pcre_compile.c 2011/08/02 11:00:40 654
+++ code/trunk/pcre_compile.c 2011/08/21 09:00:54 661
@@ -2295,8 +2295,13 @@
A user pointed out that PCRE was rejecting [:a[:digit:]] whereas Perl was not.
It seems that the appearance of a nested POSIX class supersedes an apparent
external class. For example, [:a[:digit:]b:] matches "a", "b", ":", or
-a digit. Also, unescaped square brackets may also appear as part of class
-names. For example, [:a[:abc]b:] gives unknown class "[:abc]b:]"in Perl.
+a digit.
+
+In Perl, unescaped square brackets may also appear as part of class names. For
+example, [:a[:abc]b:] gives unknown POSIX class "[:abc]b:]". However, for
+[:a[:abc]b][b:] it gives unknown POSIX class "[:abc]b][b:]", which does not
+seem right at all. PCRE does not allow closing square brackets in POSIX class
+names.
Arguments:
ptr pointer to the initial [
@@ -2314,6 +2319,7 @@
{
if (*ptr == CHAR_BACKSLASH && ptr[1] == CHAR_RIGHT_SQUARE_BRACKET)
ptr++;
+ else if (*ptr == CHAR_RIGHT_SQUARE_BRACKET) return FALSE;
else
{
if (*ptr == terminator && ptr[1] == CHAR_RIGHT_SQUARE_BRACKET)
|
