If you don't post it to a site I'd like to receive a copy at mailto:malcolm@mjfreelancing.com TIA. Malcolm Smith -----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org]On Behalf Of Stefan Slapeta Sent: Monday, 6 September 2004 21:20 To: boost@lists.boost.org Subject: [boost] Interest in custom numeric formatting? Hi all, I've recently developed a small lib for custom numeric formatting, which is part of many programming languages. You pass any number and a format string which controls the formatting. Some examples (using the US locale): num_format ( 3332123.3332, "$#,0.00" ) -> "$3,332,123.33" num_format ( 123, "#.00" ) -> "123.00" num_format ( 12, "000" ) -> "012" num_format ( 12.9, "000" ) -> "013" (rounded!) num_format ( -123.1, "#.#;-#.00" ) -> "-123.10" num_format ( -123, "$#;- $0.00;0" ) -> "- $123.00" num_format ( 0, "0.00;-0.00;<Zero>" ) -> "<Zero>" num_format ( 1000000, "#,#,.00" ) -> "1,000.00" Short explanation for the format string: . marks the decimal separator , has two functions: - if the format string contains any "," before, but not immediately before the decimal separator, there will be thousand separators in the output. - if the format string contains any "," immediately before the decimal separator, the number will be divided by the number of "," characters multiplied by 1000. 0 If there is no digit in this position, there will be a 0 in the output string # If there is a digit in this position, it is copied to the output string (except non-significant zeros) ; Section separator: if there is one section in the format string, it applies to all values. If there are two sections, the first applies to positive values and to zeros and the second applies to negative values. If there are three sections, the first applies to positive values, the second to negative values and the third to zeros, except if the second section is empty, in which case the first section applies to all non-negative values. Everything in enclosed by ' or " in the format string will be copied to the output as is. I've been looking for a (C++) solution for this for a long time and as I didn't find anything appropriate, I developed it myself finally. If anybody is interested, I could post source somewhere. Stefan _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.752 / Virus Database: 503 - Release Date: 03/09/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.752 / Virus Database: 503 - Release Date: 03/09/2004