https://bugs.exim.org/show_bug.cgi?id=1879
Bug ID: 1879
Summary: Unable to create character range with certain
characters in charclass
Product: PCRE
Version: 8.39
Hardware: x86
OS: All
Status: NEW
Severity: bug
Priority: medium
Component: Code
Assignee: ph10@???
Reporter: firas.dib@???
CC: pcre-dev@???
If you try to create a character range with a character which is supposed to be
meaningless (plain text) in a charclass you get an error saying its invalid.
Reading from the docs:
The sequences \B, \N, \R, and \X are not special inside a character
class. Like any other unrecognized escape sequences, they are treated
as the literal characters "B", "N", "R", and "X" by default, but cause
an error if the PCRE_EXTRA option is set.
For example, [A-\B] gives an error, while [\B] matches the character 'B' fine.
This applies to a bunch of tokens: \G, \K, \X, \N (gives an error saying its
not supported, are docs wrong?), \R, \A, etc.
However, this only seems to occur if the escaped token is on the left hand
side. A range like this works fine: [\A-B]
A range with an otherwise meaningless token outside of a charclass that has
been escaped makes no difference, [A-\Y] works fine.
--
You are receiving this mail because:
You are on the CC list for the bug.
