<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">On 3:<div class=""><br class=""></div><div class=""><a href="https://depth-first.com/articles/2020/05/04/stereochemistry-and-atom-parity-in-smiles/" class="">https://depth-first.com/articles/2020/05/04/stereochemistry-and-atom-parity-in-smiles/</a></div><div class=""><br class=""></div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Oct 13, 2021, at 12:54 PM, Jon Zingale <<a href="mailto:jonzingale@gmail.com" class="">jonzingale@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:#333333">Thanks Roger, Marcus. I am a newbie in this area and so it might be good for me to ask some potentially obvious questions about SMILES (since they are used everywhere).</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:#333333"><br class=""></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:#333333">1. Is the SMILES isomorphism problem equivalent to the graph isomorphism problem, or is there some advantage from being context free parsable?</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:#333333"><br class=""></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:#333333">2. In practice, do the edge cases that Roger mentioned effectively get added into the rewrite rules for the grammar or are they a separate kind of thing?</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:#333333"><br class=""></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:#333333">3. How is chirality handled?</div></div>
<br class="">.-- .- -. - / .- -.-. - .. --- -. ..--.. / -.-. --- -. .--- ..- --. .- - .<br class="">FRIAM Applied Complexity Group listserv<br class="">Zoom Fridays 9:30a-12p Mtn UTC-6 <a href="http://bit.ly/virtualfriam" class="">bit.ly/virtualfriam</a><br class="">un/subscribe <a href="https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fredfish.com%2fmailman%2flistinfo%2ffriam_redfish.com&c=E,1,XYjbO1ZAVRlib8fPIFQWN4tyOji6_fwfRFrsnlUJjk9xEJHqP8Ko70k-qN6bfFMVt6uNqS7YL8Qidg02Ffgfg9xv8XKfQnyM5AWPmEhYAkrf&typo=1" class="">https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fredfish.com%2fmailman%2flistinfo%2ffriam_redfish.com&c=E,1,XYjbO1ZAVRlib8fPIFQWN4tyOji6_fwfRFrsnlUJjk9xEJHqP8Ko70k-qN6bfFMVt6uNqS7YL8Qidg02Ffgfg9xv8XKfQnyM5AWPmEhYAkrf&typo=1</a><br class="">FRIAM-COMIC <a href="https://linkprotect.cudasvc.com/url?a=http%3a%2f%2ffriam-comic.blogspot.com%2f&c=E,1,Okl2WYznFj7N6cKJuOLYc7EyG7iF2i6TlimNEH_k31-XK564dYo-o89I0kIAjCoMUCTFVXsCKXOUZ7rfFdA6YFj2qQykT674bMjrXDZTtz6klTz0YKD_Bh-8_XXM&typo=1" class="">https://linkprotect.cudasvc.com/url?a=http%3a%2f%2ffriam-comic.blogspot.com%2f&c=E,1,Okl2WYznFj7N6cKJuOLYc7EyG7iF2i6TlimNEH_k31-XK564dYo-o89I0kIAjCoMUCTFVXsCKXOUZ7rfFdA6YFj2qQykT674bMjrXDZTtz6klTz0YKD_Bh-8_XXM&typo=1</a><br class="">archives:<br class=""> 5/2017 thru present <a href="https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fredfish.com%2fpipermail%2ffriam_redfish.com%2f&c=E,1,KGmT--s4vUHhSm9XmK0v0z4bd2EUpGRoKtiJb7OU5NGol5msc2ut0y-YXZMPyWYjWoUizIQ3lSJ1EnT6hC-OQTVJcwa4Fd-K26-eSWJswKNRwDI-YINdBIZHRw,,&typo=1" class="">https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fredfish.com%2fpipermail%2ffriam_redfish.com%2f&c=E,1,KGmT--s4vUHhSm9XmK0v0z4bd2EUpGRoKtiJb7OU5NGol5msc2ut0y-YXZMPyWYjWoUizIQ3lSJ1EnT6hC-OQTVJcwa4Fd-K26-eSWJswKNRwDI-YINdBIZHRw,,&typo=1</a><br class=""> 1/2003 thru 6/2021 <a href="http://friam.383.s1.nabble.com/" class="">http://friam.383.s1.nabble.com/</a><br class=""></div></blockquote></div><br class=""></div></body></html>