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in reply to perlfunc index name conflict

If you would like to use supplied Perl index function, qualify it CORE::index.

Also, the second parameter should be a substring to match, not a regular expression. See index.

Good luck. -c

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Re^2: perlfunc index name conflict
by dpath2o (Acolyte) on Sep 24, 2012 at 00:11 UTC
    Thank you CORE::index has solved my problem.
[reply]
Re^2: perlfunc index name conflict
by Anonymous Monk on Sep 24, 2012 at 00:09 UTC

    the second parameter should be a substring to match, not a regular expression

    Well, /(\w+)/ will return a substring

[reply]

      In scalar context such as supplied by index, a successfully matching regex will return 1, which will be stringized to '1' for the substring for which to search: 

      >perl -wMstrict -le
"my $str = 'abc1def';
 $_ = 'xyz';
 ;;
 print 'index: ', index $str, /(\w+)/;
 print qq{captured: '$1'};
"
index: 3
captured: 'xyz'

      [download]

      An unsuccessful regex match returns the empty string in scalar context.

[reply]
[d/l]

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