\ is special to all forms of quoting in Perl except for single-quoted here-docs. If you want two \'s in Perl then you need to put in four \'s: 

print '\\decs17\dq';
# prints \decs17\dq

print '\\\\decs17\dq';
# prints \\decs17\dq

print '\\\\decs17\\dq';
# also prints \\decs17\dq

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Note that I tend to use the last version because I find that it discourages me from getting confused into thinking that \ isn't special inside of single quotes and so I'm less likely to run into the problem you just did. (:

        - tye (but my friends call me "Tye")

In reply to (tye)Re: string interpolation in RE by tye
in thread string interpolation in RE by asinghvi

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