Experimental Physics and Industrial Control System
Subject: |
Announce: pyexpander - a macro processor also capable of replacing msi |
From: |
Goetz Pfeiffer <[email protected]> |
To: |
EPICS tech-talk <[email protected]> |
Date: |
Fri, 17 Jun 2011 11:10:48 +0200 |
Hello EPICS community,
I would like to announce pyexpander, a powerful macro processor based
on python. Instead of simple macro replacement it offers evaluation of
arbitrary python expressions and execution of python code.
It can also be used as an replacement for the EPICS msi tool.
Here is a link to the documentation:
http://pyexpander.sourceforge.net/
Here is the download link:
https://sourceforge.net/projects/pyexpander/files/
And here is the command to clone the repository:
hg clone
http://pyexpander.hg.sourceforge.net:8000/hgroot/pyexpander/pyexpander
This is the sourceforge project page:
https://sourceforge.net/projects/pyexpander/
Here is a short example how pyexpander can be used as a replacement for msi:
$template("adimovhgbl.template")\
$subst(
DESCVAR="adimovhgbl_ins.mac",
GBASE="U3IV:",
DRV="V",
AdiMopVer="9",
TRIG1="U3IV:AdiVGblPvr.PROC",
TRIG2="U3IV:AdiVGblMvr.PROC",
)\
$subst(
DESCVAR="adimovhgbl_ins.mac",
GBASE="U3IV:",
DRV="H",
AdiMopVer="9",
TRIG1="U3IV:AdiHGblPvr.PROC",
TRIG2="U3IV:AdiHGblMvr.PROC",
)\
$pattern(
("GBASE","DRV","AdiMopVer","TRIG1","TRIG2"),
("U3IV","C","9","U3IV:AdiCGblPvr.PROC", "U3IV:AdiCGblMvr.PROC"),
("U3IV","P","9","U3IV:AdiPGblPvr.PROC", "U3IV:AdiPGblMvr.PROC"),
)\
$template("adimogbl.template")\
$subst(
DESCVAR="adimogbl_ins.mac",
GBASE="U3IV:",
TRIG1="U3IV:AdiMoVGblTrg.PROC",
TRIG2="U3IV:AdiMoHGblTrg.PROC",
TRIG3="",
TRIG4="",
)\
Features of the package are:
* simple syntax definition, all expander commands start with a dollar ("$")
sign followed by word characters, parameters or python code enclosed in
brackets or both.
* the full power of the python programming language can be used, all
operators,
functions and modules.
* any python expression can be used to insert text.
* There is also a python library, pyexpander.py, which you can use to
develop
other macro tools based on pyexpander.
Greetings
Goetz Pfeiffer
________________________________
Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
Mitglied der Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentren e.V.
Aufsichtsrat: Vorsitzender Prof. Dr. Dr. h.c. mult. Joachim Treusch, stv. Vorsitzende Dr. Beatrix Vierkorn-Rudolph
Geschäftsführer: Prof. Dr. Anke Rita Kaysser-Pyzalla, Dr. Ulrich Breuer
Sitz Berlin, AG Charlottenburg, 89 HRB 5583
Postadresse:
Hahn-Meitner-Platz 1
D-14109 Berlin
http://www.helmholtz-berlin.de
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