Subject: Re: [bitcoindev] New Proposal：String Substring Search in Bitcoin Script - OP_ISSUBSTR

From: Erik Aronesty <[email-masked]>
Date: Tue, 18 Mar 2025 09:41:56 -0700 (PDT)

foobar foo IsSubStr 

is equivalent to: 

foobar foo bar Cat Equal 

assuming bar is known (this excludes the nondeterministic example above) 

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