[pstricks] Temporary bug: \foreach needs pgfmath when looping index is specified

Donut E. Knot the.counterterrorist at yahoo.com
Sat Jan 18 23:57:07 CET 2014

Dear folks,

In the released version of `pgffor` as opposed to the development version, 
`\foreach` needs  `pgfmath` explicitly loaded when the looping index via `[count]` is specified.

\usepackage{pgfmath}% don't forget this line!
\foreach \x [count=\xi from 0] in {A,2,3,4,5,6,7,8,9,T,J,Q,K}
\pnodes(!3 \xi\space neg \pst at angleunit 90 add PtoC){X\x}
\uput[!N-X\x.y N-X\x.x atan 1 \pst at angleunit div](X\x){\x}

According to Jubobs, the dependency issue has been fixed in the development version of `pgffor`.
For more detailed discussion, visit http://tex.stackexchange.com/q/154784/19356.

I don't know exactly what we should do in `pstricks.tex`, either

	* load `pgfmath` sandwiched in if-then-else clause checking the version of `pgffor` or

	* just leave it as is.
IMHO, the former option should be better.

Thank you in advance.

Best regards,

A PSTricks user

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