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* bug#59531: 29.0.50: An alternative to `string-to-number` which throws an error (or returns a NIL value) when input is non-parseable as number
@ 2022-11-24  6:14 Ramesh Nedunchezian
  2022-11-24  8:00 ` Eli Zaretskii
  2022-11-24 10:08 ` Jean Louis
  0 siblings, 2 replies; 5+ messages in thread
From: Ramesh Nedunchezian @ 2022-11-24  6:14 UTC (permalink / raw)
  To: 59531

`string-to-number` returns ZERO if the input is not a number.  


This return value is not very helpful.  The choice of a number ZERO as "Not A Number" doesn't help one to distinguish between the following two cases

(1) Input was a valid number, and it parses to number zero

(2) Input was NOT a valid number, and it was forcibly reported as ZERO

Consider amending `string-to-number` to throw an error (or return NIL) when the input is not parseable as a number, or providing an alternative API to validate numbers.  I am trying to parse some fields in an org table, and see if the field value is a number or not;

If there is already an alternative to what I am trying to accomplish, I would appreciate a recipe.








^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-12-16  6:28 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-11-24  6:14 bug#59531: 29.0.50: An alternative to `string-to-number` which throws an error (or returns a NIL value) when input is non-parseable as number Ramesh Nedunchezian
2022-11-24  8:00 ` Eli Zaretskii
2022-12-14 16:40   ` Robert Pluim
2022-12-16  6:28     ` Jean Louis
2022-11-24 10:08 ` Jean Louis

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