Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
I have a configuration file that I need to parse through. The lines will follow one of, say, three formats:
Managed Node XYZ123 = MN Type = Combo Rim = Planner
What I need to be able to do is grab any line that starts with "Managed Node" and store the values on either side of the "=" sign in a hash. Simple enough, but I'd like to double check the regex I came up with to see if anything better out there to catch user formatting...differences (i.e. - "a=b" vs "a = b", etc). I'd like to make this as forgiving as possible. On the left side of the "=" sign, numbers, letters, underscores, and dashes. On the right side, I'd like to limit it to a number of possibilities, set in a "|" delimited global variable.
my $options = 'A|B|C|D'; if ($line =~ /^Managed Node ([a-zA-Z0-9_-])\s*=\s*($options)/i) { my ($node, $value) = ($1, $2); }
The second thing I need to be able to do is two fold. If a line matches ABC = XYZ, I need to be able to grab both sides of the "=" sign and, in this case, create a variable called $ABC and set its value to "XYZ". I'm not sure how to go about dynamically creating variables like this, but here is my regex:
if ($line =~ /^(\w*)\s*=\s*(\w*)/);
or would this be better
if ($line =~ /%(.*)\s*=\s*(.*)/);
Thanks for the help.

In reply to some regex help by emilford

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (2)
As of 2022-07-01 16:25 GMT
Find Nodes?
    Voting Booth?
    My most frequent journeys are powered by:

    Results (99 votes). Check out past polls.