Using bracket expressions to prevent ' leaning toothpick syndrome' (= the \\\\\\ misery) might be useful, and embedded (?x) lets you add comments to a regex, like so: 

select 'word.01234' ~ E'(?x)
                        ^                # begin-of-string 
                            word         #   root word
                            [.]          #   dot
                            [[:digit:]]+ #   digits...
                        $                # end-of-string
                     '
;

-- caveat:
--   the (?x) option overrides any previously determined
--   options including RE flavor and case sensitivity.

[download]

tilly is right regarding placeholdering, of course - see also dbi, placeholder and postgres regular expression problem.

In reply to Re: Perl and PostgreSQL regex by erix
in thread Perl and PostgreSQL regex by chrishowe

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