*X-seq*: zsh-workers 13943*From*: Peter Stephenson <pws@xxxxxxxxxxxxxxxxxxxxxxxx>*To*: zsh-workers@xxxxxxxxxxxxxx (Zsh hackers list)*Subject*: Re: Baffling bug with ${(S)...} or ${...//p/r} and math context*Date*: Wed, 11 Apr 2001 01:04:13 +0100*In-reply-to*: ""Bart Schaefer""'s message of "Mon, 02 Apr 2001 04:41:19 -0000." <1010402044119.ZM14251@xxxxxxxxxxxxxxxxxxxxxxx>*Mailing-list*: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm

"Bart Schaefer" wrote: > Now here's the strange bit: If I use that in a math expression (( ... )), > it gives the correct number, and the inequality evaluates correctly: > > ((${#${(f)${(%%)${(S)PS1//[%]\{*%\}/}}}[1]} > COLUMNS-2)) > > However, if I immediately evaluate the same expression again, the answer > is different! E.g., if I do > > print ${#${(f)${(%%)${(S)PS1//[%]\{*%\}/}}}[1]} > ((${#${(f)${(%%)${(S)PS1//[%]\{*%\}/}}}[1]} > COLUMNS-2)) > print ${#${(f)${(%%)${(S)PS1//[%]\{*%\}/}}}[1]} > > I'm likely to get > > 77 > 86 > > as the output. Hmm, it wouldn't be something to do with the fact that the length of the output, even excluding %{...%}'s, varies with the status of the previous command, by any chance? -- Peter Stephenson <pws@xxxxxxxxxxxxxxxxxxxxxxxx> Work: pws@xxxxxxx Web: http://www.pwstephenson.fsnet.co.uk

**Follow-Ups**:**Re: Baffling bug with ${(S)...} or ${...//p/r} and math context***From:*Bart Schaefer

**References**:**Baffling bug with ${(S)...} or ${...//p/r} and math context***From:*Bart Schaefer

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