The character class \w matches an alphanumeric character, so it matches a digit as well as a letter (or underscore). You need a character class which excludes digits. But \D includes anything not a digit, so it matches whitespace. A negated character class [^\d\s] will match a character that is neither a digit nor a space:

my @names = $text =~ /\b[^\d\s]*\d[^\d\s]*\b/g;

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Or, more simply, specify the letters you want to match explicitly (note the /i modifier to make the regex case-insensitive):

my @names = $text =~ /\b[A-Z]*\d[A-Z]*\b/gi;

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See the section “Character Classes and other Special Escapes” in perlre#Regular-Expressions.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: regex search for words with one digit by Athanasius
in thread regex search for words with one digit by Anonymous Monk

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