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bug#59531: 29.0.50: An alternative to `string-to-number` which throws an
From: |
Ramesh Nedunchezian |
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 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.2 |
`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.
- 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 <=