Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Not necessarily. It won't work for

print($regexp) Expect Gives -------------- ------------ ---------- \Q*\E\Q*\E \*\* \*\Q*\E \Q**LOL** \*\*LOL\*\* \Q**LOL** \\Quit\\Exit \\Quit\\Exit \Quit\Exit \Qfoo\\E foo\\\\E foo\\


my $in_quote = 0; $regexp =~ s/([^\\]|\\.)/ if ($in_quote) { if ($1 eq '\\E') { $in_quote = 0; '' } else { quotemeta($1) } } else { if ($1 eq '\\Q') { $in_quote = 1; '' } else { $1 } } /eg;

Update: Alternative:

$regexp =~ s/ \G ( (?:[^\\]|\\[^Q])* ) (?: \\Q (?:[^\\]|\\[^E])* (?:\\E)? )? / $1 . (defined($2) ? quotemeta($2) : '') /xge;

Neither snippet is fully tested. In fact, both are known to be unable to handle regexps in which (?{...}) or (?{{...}}) are used. What's wrong with what I suggested in my earlier post?

In reply to Re^3: Unrecognized escape \Q passed through in regex by ikegami
in thread Unrecognized escape \Q passed through in regex by Articuno

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 surveying the Monastery: (3)
As of 2022-01-19 21:00 GMT
Find Nodes?
    Voting Booth?
    In 2022, my preferred method to securely store passwords is:

    Results (56 votes). Check out past polls.