math-at-point - Evaluate a math expression at point using calc-eval

• math-at-point

  2 12 3.7 Emacs Lisp

  Evaluate math expression at point using calc-eval

• cexp

  1 2 0.0 Emacs Lisp

I had been using a simpler version of this that didn't allow parentheses (now called math-at-point-simple). I figured that this would likely only be useful to others if it could handle parens, but that proved to be challenging, as balanced parens can't be matched by any regular expressions. I tried a few solutions I found online, but they were either overkill (e.g.,parsing expression grammars) or placed restrictions on the balanced parens (e.g., cexp). I got it to work using an idea from this StackExchange thread, which suggested adapting code from forward-sexp to systematically find and count all balanced parens in a string.

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• GNU Emacs

  242 4,246 9.9 Emacs Lisp

  Mirror of GNU Emacs

  

-> is dash.el analog (I prefer it because it's shorter) of thread-first

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