Could you please enlighten me to what am I doing wrong?

When you interpolate the string $number_string into the regex qr/.*$card,$sim.*$number_string.*/ the backslash you originally had on the '+' sign is effectively 'used up'. So by the time the regex comes to be used, that '+' will be treated as a regex meta character, specifically a quantifier modifier, for the preceding space.

Often when interpolating a string into a regex, the way to ensure any meta-like characters within as treated as literals is to bracket the interpolated variable in \Q and \E.

eg. qr/.*$card,$sim.*\Q$number_string\E.*/.

But as the string actually contains meta-characters that you want recognised as such, the other option is to double the backslashes on the '+' so that one remains by the time the regex is used. Ie.

my $number_string = 'Your number is \\+([0-9]+)';

$exp->expect($timeout,
        [ qr/.*$card,$sim.*$number_string.*/,
        ...

[download]

Which should resolve this particular problem.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re: qr// for Expect.pm problem by BrowserUk
in thread qr// for Expect.pm problem by Anonymous Monk

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


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.