From: Ramesh Nedunchezian <rameshnedunchezian@outlook.com>
To: 59531@debbugs.gnu.org
Subject: 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
Date: Thu, 24 Nov 2022 11:44:43 +0530 [thread overview]
Message-ID: <TY2PR0101MB3693F7DD75CC1CCBA0EB9543DA0F9@TY2PR0101MB3693.apcprd01.prod.exchangelabs.com> (raw)
`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.
next reply other threads:[~2022-11-24 6:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-24 6:14 Ramesh Nedunchezian [this message]
2022-11-24 8:00 ` 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 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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