[texhax] remove `pt' from end of string

Alexander Grahn A.Grahn at fz-rossendorf.de
Wed Oct 5 13:16:11 CEST 2005

Dear TeX-Friends,

I'm trying to write a macro that removes the `pt' unit from a string.
While the macro \removept works on a hardcoded string, case (1)
of attached example, it fails on a string which itself is a macro,
although it is an \edef'ed one, case (2).

Would you please help me to adjust the macro so that it works in case
(2) as well?




\def\bufa{ 1.31415pt}

\edef\bufb{ \the\mylength}
  (1) works:\expandafter\removept\bufa
  \typeout{bufb: \bufb} %indeed, it's 1.31415pt

  (2) doesn't:\expandafter\removept\bufb

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