Hi All,

Could one of the perl elders kindly provide some insight into this regex question.

I have an array of user-input terms which may be "concatenated" or not (see @terms). I would like the array to look like @separated_terms. Basically just cleave each element if it has an uppercase letter following a lower case. 
# Input
@terms = qw/Genetics Genomics phylogeny allele            
            ChromosomeLocusLink geneExpression       
            RasSignalTransductionPathway/;

foreach my $words (@terms) {
        my @wordlist = $words =~ /(?:(.+?[a-z])([A-Z].+))+/g;
}

# Desired Result

@separated_terms = qw/Genetics Genomics phylogeny 
                      allele Chromosome Locus Link 
                      gene Expression Ras Signal
                      Transduction Pathway/;

[download]
---- Here are my attempts, using @wordlist to hold the substrings (several variations omitted) : 
# does not work - removes last lowercase and first uppercase letter at
+ each boundary
#       my @wordlist = split /[a-z][A-Z]/, $words;

# does not work - only separates the last term from the list
        my @wordlist = $words =~ /(?:(.+?[a-z])([A-Z].+))+/g;

[download]

In reply to Regular Expression - split string by lower/upper case by MiamiGenome

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