unless this is an exercise in learning clojure, why not use an existing calculator parser? eg. https://inst.eecs.berkeley.edu/~cs164/sp05/ta/calculator/Parser.java for a random example found with a quick google
On Sat, May 15, 2021 at 3:23 PM Blake Watson <dsblakewat...@gmail.com> wrote: > Hello, > > I've got a situation where I want to allow users some modest calculation > ability, and I've gone through various evolutions of possibilities, like > letting them put in raw Clojure code (that I will restrict at some point), > to (heh) using POI to let them use Excel to specify possibilities (which is > WAY overkill), to using infix. > > https://github.com/rm-hull/infix > > This is basically what I want, only expandable. I have some reservations, > however: > > 1. It's no longer maintained. > 2. It uses the author's own homegrown parser. > 3. The comparator operators don't seem to work. > 4. There's no function for "I can't calculate this because I don't know > the value of X." > > All of this is surmountable, of course. The question is, should I surmount > it? Or should I just start with Instaparse and a calculator grammar. Or is > there a third way? > > ===Blake=== > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/clojure/CAJAnwPmhNNKYY1yHvND5Z8pKwMnNBXqtox7DZrP%2BVwc5LJndmg%40mail.gmail.com > <https://groups.google.com/d/msgid/clojure/CAJAnwPmhNNKYY1yHvND5Z8pKwMnNBXqtox7DZrP%2BVwc5LJndmg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/clojure/CAGokn9J6v_CLjZu3vc9S87rbKmUUSSZ%3DSVzweS7t7gONEQmaZw%40mail.gmail.com.
