Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris
 
PerlMonks  

comment on

( [id://3333] : superdoc . print w/replies, xml ) Need Help??
In the spirit of laziness as it pertains to maintaining/adding-things-to code, I would rewrite the first example to automatically generate the words to be replaced from the keys in the hash (and, I was just a little bored, so I did this).
my %ch = ('green' => 'lousy', 'blue' => 'cool', 'pink' => 'mini',) ; my $str = 'I have a green hat, blue shirt, plus a pink jacket'; print $str . "\n" ; my $keyList = '('. (join '|', keys %ch) . ')'; my $regex = qr/$keyList/; $str =~ s/$regex/$ch{$1}/g; print $str ;
That way, if we wanted to change all instances of 'hat' to 'fedora', we just add it to the hash and go about our business.
my %ch = ('green' => 'lousy', 'blue' => 'cool', 'pink' => 'mini', 'hat' => 'fedora') ; my $str = 'I have a green hat, blue shirt, plus a pink jacket'; print $str . "\n" ; my $keyList = '('. (join '|', keys %ch) . ')'; my $regex = qr/$keyList/; $str =~ s/$regex/$ch{$1}/g; print $str ; __END__ I have a green hat, blue shirt, plus a pink jacket I have a lousy fedora, cool shirt, plus a mini jacket
TIMTOWTDI,
enoch

In reply to Re: 3 Examples of Multiple-Word Search n Replace by enoch
in thread 3 Examples of Multiple-Word Search n Replace by chunlou

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.