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warning: regexp constant for parameter #1 yields boolean value


From: J Naman
Subject: warning: regexp constant for parameter #1 yields boolean value
Date: Thu, 4 Aug 2022 11:39:23 -0400

I am sorry, I do not understand what this warning means in this case.
code:
r0=gensub(/([0-9])[,]([0-9])/,"\\1\\2","g",r0);
warning: regexp constant for parameter #1 yields boolean value
# want "1,234,567" => "1234567"
Thanks


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