Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
Hi nursyza,

You've received good answers already, but I would add that the syntax could be simplified. Assuming that your target string is in the $_ default variable because you're reading the file in a while loop (for example a while (<$IN>) { # ... construct, assuming $IN is your file descriptor), then you don't need to test for "definedness," because the while loop already does that check. You also don't need the extra $MODULE_NAME variable; using directly the $_ variable makes the regex syntax simpler (if you don't specify any target string, a regex will by default match against $_). So putting this together, you could have something like this:

print "Module name = $1\n" if /(MODULE\s+\w+)\s*\(/; # Prints: Modul +e name = MODULE C17
Or, using the /x modifier already described by other monks:
print "Module name = $1\n" if /( MODULE \s+ \w+ ) \s* \(/x;

In reply to Re: Pattern matching by Laurent_R
in thread Pattern matching by nursyza

Title:
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 How to display code and escape characters are good places to start.
Log In?
Username:
Password:

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

How do I use this?Last hourOther CB clients
Other Users?
Others chanting in the Monastery: (4)
As of 2024-03-28 14:19 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found