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(p5B296D28.dip.t-dialin.net [91.41.109.40]) by mx.google.com with ESMTPS id z10sm865862fka.38.2009.04.09.16.06.55 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 09 Apr 2009 16:06:55 -0700 (PDT) In-Reply-To: X-Mailer: Apple Mail (2.930.3) X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=209.85.220.176; country=US; region=CA; city=Mountain View; postalcode=94043; latitude=37.4192; longitude=-122.0574; metrocode=807; areacode=650; http://maps.google.com/maps?q=37.4192,-122.0574&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 206790369 - ee3a7de1b543 - 20090410 X-Scanned-By: CanIt (www . roaringpenguin . com) on 195.169.124.155 X-Virus-Scanned: amavisd-new at ntg.nl X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.11 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: ntg-context-bounces@ntg.nl Errors-To: ntg-context-bounces@ntg.nl X-Virus-Scanned: amavisd-new at ntg.nl Xref: news.gmane.org gmane.comp.tex.context:49277 Archived-At: Am 10.04.2009 um 00:53 schrieb luigi scarso: >> and why so many '%'? > prevent spurios spaces after \relax? >> \newdimen checks for the existence of a control sequence > > the point is that on minimals-beta there is an error, > on minimals no , but xpdf says > > Error: ExtGState 'Tr0' is unknown > Error: ExtGState 'Tr0' is unknown > Error: ExtGState 'Tr0' is unknown > Error: ExtGState 'Tr0' is unknown > Error: ExtGState 'Tr0' is unknown > > The code is not wrong -- maybe a bit strange works fine here with preview app or adobe reader > Also this is ok in minimals > fails in minimals-beta, > and I think It's legal code, but I can fail . > > \newdimen\currentlayerheight > \starttext > \currentlayerheight=\dimexpr 12pt +0pt\relax% > \the\currentlayerheight > \stoptex\newdimen\currentlayerheight current: \newdimen\currentlayerheight -> create new dimen register beta: \newdimen\currentlayerheight -> check if \currentlayerheight is already defined, it true write a message to the terminal and do nothing else create a new dimen register what did not happen here because \currentlayerheight is defined in page-lyr.tex Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________