Package: procmail
Version: 3.22-19
Severity: normal
Tong on the debian-user mailing list reported that \<...\> was not
working. I investigated it somewhat, can confirm the broken behavior,
and after looking at it a little I think it is a bug in \< expansion.
The procmailrc man page says:
\< or \> Match the character before or after a word. They are merely
a shorthand for `[^a-zA-Z0-9_]', but can also match newlines.
Since they match actual characters, they are only suitable to
delimit words, not to delimit inter-word space.
The \< appears broken. However quite interestingly \\< appears to
work okay. I wondered if there was a problem with backslash handling
and tried a few combinations of it and found that \\< seems to behave
as \< should be behaving. For example the following test case and
looking at the verbose output to see what is matched and what is not
matched.
VERBOSE=on
:0 HB
* 1^0 testword
* 1^0 \<testword\>
* 1^0 \<testword
* 1^0 testword\>
* 1^0 \\<testword
* 1^0 \\<testword\>
testwordfolder
It appears that \\< works where \< should work. I didn't look at the
code to see how this only affected the before word case and not the
after word case too. There should be a clue there.
Thank you for maintaining procmail!
Bob
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.1.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages procmail depends on:
ii libc6 2.13-24
Versions of packages procmail recommends:
ii postfix [mail-transport-agent] 2.8.5-1.1
procmail suggests no packages.
-- no debconf information
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