Forum: Cfengine Help
Subject: Re: Variable to lowercase
Author: sauer
Link to topic: https://cfengine.com/forum/read.php?3,22431,22524#msg-22524
I was looking for a solution to this earlier as well. I thought I'd be
super-clever and use the \L escape from perl's regexps (which lowercases
everything up to the next \E). I thought I'd do a regextract with "\L(.*)\E"
as the pattern, and use the first backreference to get the lower-case'd
version. But that plays "wha wha whaaaa" out the speaker (well, it should) and
gives this error:
!! Could not parse regular expression '\L(.*)\E'
!!! System error for CompileRegExp: "Operation not permitted"
Regular expression error "PCRE does not support \L, \l, \N, \U, or \u" in
expression "\L(.*)\E" at 1
So, back to the drawing bord... :) I'm still using tr. Well, actually I use a
perl script in the modules directory to set a variable using the module
protocol like this:
user@host $ cat ./tolower
#!/usr/bin/perl
print q{=},shift,q{=};
print lc($_) foreach (@ARGV);
print qq{\n};
user@host $ ./tolower lowercased HeLLo
=lowercased=hello
but it's the same basic idea. ;)
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