IPP> RE: Revised ABNF per Monday's Phone Conference

IPP> RE: Revised ABNF per Monday's Phone Conference

Hastings, Tom N hastings at cp10.es.xerox.com
Tue May 15 14:00:45 EDT 2001


I believe that we agreed that the mm class names wouldn't need to be
explicitly listed in the ABNF, since most new class names that are
registered will be using the "mm" units.  Then we don't have to update the
ABNF, except in the unlikely event that a class name that uses "in" units is
registered.

Also we agreed that the registered class names couldn't have "-" in them,
but could have "." (as in registry path names).

So here is my suggested ABNF instead (which just changes the class2 line):

media-size-self-describing-name = 
          ( class1 "_" size-name "_" short-dim "x" long-dim "in" ) |
          ( class2 "_" size-name "_" short-dim "x" long-dim "mm" )

   class1 = "na" | "asme" | "oe" 

   class2 = lowalpha *( lowalpha | digit | "." )

   size-name = ( lowalpha | digit ) *( lowalpha | digit | "-" )

   short-dim = dim

   long-dim = dim

   dim = integer-part [fraction-part] | "0" fraction-part

   integer-part = non-zero-digit *digit

   fraction-part = "." *digit non-zero-digit

   lowalpha = "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" |
              "j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" |
              "s" | "t" | "u" | "v" | "w" | "x" | "y" | "z"

   non-zero-digit = "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"

   digit    = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"


-----Original Message-----
From: Bergman, Ron [mailto:Ron.Bergman at Hitachi-hkis.com]
Sent: Tuesday, May 15, 2001 09:18
To: Tom Hastings (E-mail); Ira McDonald (E-mail); Don Wright (E-mail)
Cc: 'ipp at pwg.org'
Subject: Revised ABNF per Monday's Phone Conference


Here is my proposed ABNF to document the agreed restrictions in yesterday's
phone call.  I may be missing some of the class names but this should
correctly linl\k each class to only one set of units.


media-size-self-describing-name = 
          ( class1 "_" size-name "_" short-dim "-" long-dim "in" ) |
          ( class2 "_" size-name "_" short-dim "-" long-dim "mm" )

   class1 = "na" | "asme" | "oe" 

   class2 = "iso" | "jis" | "jpn" | "prc" | "roc" | "om"

   size-name = ( lowalpha | digit ) *( lowalpha | digit | "-" )

   short-dim = dim

   long-dim = dim

   dim = integer-part [fraction-part] | "0" fraction-part

   integer-part = non-zero-digit *digit

   fraction-part = "." *digit non-zero-digit

   lowalpha = "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" |
              "j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" |
              "s" | "t" | "u" | "v" | "w" | "x" | "y" | "z"

   non-zero-digit = "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"

   digit    = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"


Any comments?

	Ron




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