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${extract {a} {a=v1 a=v2}}

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bill-exim at carpenter

Aug 23, 2008, 10:36 AM

Post #1 of 2 (195 views)
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${extract {a} {a=v1 a=v2}}

Suppose a key occurs more than once in string. Can I count on the
extract operator pulling out the first (leftmost) value? That's what
I've been getting in my experiments, but the spec doesn't say it
explicitly. I just want to know if it's an accident of implementation
or if it could conceivably change in the future.

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dot at dotat

Aug 26, 2008, 9:58 AM

Post #2 of 2 (158 views)
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Re: ${extract {a} {a=v1 a=v2}} [In reply to]

On Sat, 23 Aug 2008, WJCarpenter wrote:

> Suppose a key occurs more than once in string. Can I count on the
> extract operator pulling out the first (leftmost) value?

Yes.

Tony.
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<fanf[at]exim.org> <dot[at]dotat.at> http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}

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