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