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Re: foo=${(z)${(s:.:)SECONDS}} ; echo ${foo[1]}.${(r:2:)foo[2]}

X-seq: zsh-users 12107
From: Angel Olivera <redondos@xxxxxxxxxxx>
To: zsh-users@xxxxxxxxxx
Subject: Re: foo=${(z)${(s:.:)SECONDS}} ; echo ${foo[1]}.${(r:2:)foo[2]}
Date: Thu, 25 Oct 2007 10:00:05 +0200
In-reply-to: <20071025033706.12434.qmail@xxxxxxxxxxx>
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References: <20071025033706.12434.qmail@xxxxxxxxxxx>

On Thu 25.Oct.07 16:37, Atom Smasher wrote:

i want that number to be reported only to hundredths of a second (twodecimal places). i could just say that there are 10 decimal places andi want to get rid of eight:
	print "${SECONDS/%????????/}"
	25867.46
but that would break if the number of digits after the decimal pointchanges. which leads me to:
	% foo=${(z)${(s:.:)SECONDS}} ; echo ${foo[1]}.${(r:2:)foo[2]}
	25969.87
which works fine, but i'm wondering if there's a more graceful way to dothat without an intermediate variable (foo, in this case).


Use backreferences, e.g.:

print ${SECONDS//(#b)(*.??)*/${match[1]}}

--
redondos

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References:
- foo=${(z)${(s:.:)SECONDS}} ; echo ${foo[1]}.${(r:2:)foo[2]}
  - From: Atom Smasher

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