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Behavior of Longest

• To: mathgroup at smc.vnet.net
• Subject: [mg107909] Behavior of Longest
• From: dh <dh at metrohm.com>
• Date: Tue, 2 Mar 2010 07:54:27 -0500 (EST)

Hello,
can somebody give an explanation for the following behavior of Longest 
(mma version 7.0.1):
{1, 2} /. Longest[x__Integer]:>{x}    gives {{1}, {2}}

the same as Shortest:
{1, 2} /. Shortest[x__Integer]:>{x}  gives {{1}, {2}}

However, it works like expected in the following case:
{a, 1, 2, b} /. {x1___, Longest[x__Integer], x2___} :> {x1, {x}, x2} 
gives: {a, {1, 2}, b}

looks like a bug to me.

Daniel

-- 

Daniel Huber
Metrohm Ltd.
Oberdorfstr. 68
CH-9100 Herisau
Tel. +41 71 353 8585, Fax +41 71 353 8907
E-Mail:<mailto:dh at metrohm.com>
Internet:<http://www.metrohm.com>

• Follow-Ups:
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    • From: Leonid Shifrin <lshifr@gmail.com>
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    • From: Leonid Shifrin <lshifr@gmail.com>
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