WANTED: macro which extracts first char of its argument - possible? - Article 845 - go-pugleaf

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Article #845

WANTED: macro which extracts first char of its argument - possible?

#845

From: Christian Schaepper
Date: Wed, 05 Aug 1992 13:33

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Dear TeXnicians,

is it possible to write a macro which extracts the first character of
its argument (such that, for example, `\firstchar{abc}' yields `a') ?

The intended usage is as follows: \def\myinput#1{\input \firstchar{#1}/#1}
(\myinput{file} should really input f/file).

	Regards
	 -Christian Sch\"apper

-- 
+-----------------------------------------------------------------------------+
| Christian Schaepper, Zurich, Switzerland      schaeppe@nessie.cs.id.ethz.ch |
|                                 DECnet: UZPH7::SCHAEPPER (57560::SCHAEPPER) |
+-----------------------------------------------------------------------------+

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From: schaeppe@nessie.cs.id.ethz.ch (Christian Schaepper)
Subject: WANTED: macro which extracts first char of its argument - possible?
Message-ID: <1992Aug5.133331.9379@bernina.ethz.ch>
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Organization: Swiss Federal Institute of Technology (ETH), Zurich, CH
Date: Wed, 5 Aug 1992 13:33:31 GMT
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