Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!usenet.blueworldhosting.com!feeder01.blueworldhosting.com!border2.nntp.dca1.giganews.com!nntp.giganews.com!ottix-news.ottix.net!newsswitch.lcs.mit.edu!bloom-beacon.mit.edu!bloom-beacon.mit.edu!panix!not-for-mail From: rodd@panix.com (Rod Dorman) Newsgroups: comp.lang.postscript Subject: Re: The Dawn of Desktop Publishing - Computerphile [Apple Laserwriter history video - youtube] Date: Sat, 20 Dec 2014 01:20:44 +0000 (UTC) Organization: Public Access Networks Corp. Lines: 24 Message-ID: References: <30f25c6e-aa41-4446-ac96-893a13b4dbae@googlegroups.com> <28cc97dd-aa6e-4490-973d-1e67d12367da@googlegroups.com> NNTP-Posting-Host: panix1.panix.com X-Trace: reader1.panix.com 1419038444 6696 166.84.1.1 (20 Dec 2014 01:20:44 GMT) X-Complaints-To: abuse@panix.com NNTP-Posting-Date: Sat, 20 Dec 2014 01:20:44 +0000 (UTC) X-Newsreader: trn 4.0-test76 (Apr 2, 2001) Xref: csiph.com comp.lang.postscript:2133 In article <28cc97dd-aa6e-4490-973d-1e67d12367da@googlegroups.com>, luser- -droog wrote: >On Friday, December 19, 2014 2:19:18 PM UTC-6, jdaw1 wrote: >> > Programming in Postscript 15:22 >> > https://www.youtube.com/watch?v=S_NXz7I5dQc >> >> At time 4:12 in >> https://www.youtube.com/watch?v=S_NXz7I5dQc >> the narrator shows a printout of a PostScript program. The first line of that program is "%!PS-Adobe-2.0". As discussed in >> https://groups.google.com/forum/#!topic/comp.lang.postscript/mW5wSd-3aPY >> such a first line promises a PostScript program obeying document structure rules. >> >> żDoes that program obey? > >(As I guess you've already guessed) No, it doesn't. > ... >Unfortunately, there's no standard technique for declaring >conformance to a particular standard lang. For the most part, The DSC %%LanguageLevel: comment would be the way to do it. -- -- Rod -- rodd(at)polylogics(dot)com