On Thu, Oct 14, 2010 at 9:48 AM, Mohit Chawla <mohit.chawla.bin...@gmail.com> wrote: > > > On Thu, Oct 14, 2010 at 9:55 PM, Nigel Kersten <ni...@explanatorygap.net> > wrote: >> >> On Thu, Oct 14, 2010 at 7:18 AM, Mohit Chawla >> <mohit.chawla.bin...@gmail.com> wrote: >> > Split & Join inside an inline template should work well. >> >> Wouldn't it be a bit cleaner to use the builtin regsubst function? >> >> http://docs.puppetlabs.com/references/latest/function.html#regsubst >> >> "Example: >> >> Get the third octet from the node’s IP address: >> >> $i3 = >> regsubst($ipaddress,'^([0-9]+)[.]([0-9]+)[.]([0-9]+)[.]([0-9]+)$','\3')" >> >> >> I really try to avoid inline_template unless I absolutely have to, >> even though the actual Ruby code there is cleaner than the long regex. >> If you really only want the third octet, you could use a much simpler >> regex than the one above. >> >> Obligatory plug for the site I always use for regex references: >> http://www.regular-expressions.info as it's an easy domain name to >> remember. >> >> >> >> >> > For eg., >> > $nsip=inline_template('<%= ipaddress.split(".")[0..1].collect{|x| >> > x}.join(".") %>') >> > This will split an ip address, say 192.168.1.3, split it at each >> > occurrence >> > of a "." and will join the first two numbers ( referenced as [0..1] ), >> > to >> > give 192.168. >> > So, in your case, I guess something like <%= ipaddress.split(".")[1] %> >> > should work. >> > >> > >> > On Thu, Oct 14, 2010 at 7:27 PM, Dennis vdM <cybernijn...@gmail.com> >> > wrote: >> >> >> >> I'm trying to manipulate the following facter variable: >> >> >> >> ipaddress => 10.85.207.2 >> >> >> >> What I need is the second group of digits. If it's 84 then location is >> >> A, but if it's 85 then location is B. >> >> In puppet I couldn't grab this second set of digits, but maybe there >> >> is a way? >> >> >> >> I've already tried to make a custom fact, but my ruby knowledge is >> >> *ahem* pretty basic. >> >> So far I've only managed to manipulate a string with chop!, but that >> >> really isn't the way. >> >> Regular expressions in Ruby are a bit of a mystery to me.... >> >> >> >> Ideas anyone? >> >> >> >> -- >> >> You received this message because you are subscribed to the Google >> >> Groups >> >> "Puppet Users" group. >> >> To post to this group, send email to puppet-us...@googlegroups.com. >> >> To unsubscribe from this group, send email to >> >> puppet-users+unsubscr...@googlegroups.com. >> >> For more options, visit this group at >> >> http://groups.google.com/group/puppet-users?hl=en. >> >> >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "Puppet Users" group. >> > To post to this group, send email to puppet-us...@googlegroups.com. >> > To unsubscribe from this group, send email to >> > puppet-users+unsubscr...@googlegroups.com. >> > For more options, visit this group at >> > http://groups.google.com/group/puppet-users?hl=en. >> > >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Puppet Users" group. >> To post to this group, send email to puppet-us...@googlegroups.com. >> To unsubscribe from this group, send email to >> puppet-users+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/puppet-users?hl=en. >> > > > Hi Nigel, > > Thanks for pointing that out, I wasn't aware of regsubst. But, just for my > curiosity, what are the disadvantages of using an inline template, in such ( > trivial ? ) cases ? Would be nice to know.
I just find them less readable. those nasty angle brackets have sharp edges :) It's probably a personal preference, but I try to only resort to inline_template if I can't achieve what I need in a reasonable manner without it, and will often write a function instead of using inline_template if that's an option. -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To post to this group, send email to puppet-us...@googlegroups.com. To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en.
