IPP Mail Archive: RE: IPP> How does this ABNF look for the M

RE: IPP> How does this ABNF look for the Media Size Self Describi ng Name?

From: Bergman, Ron (Ron.Bergman@Hitachi-hkis.com)
Date: Thu May 03 2001 - 21:19:23 EDT

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    Tom,

    It is hard to imagine a doument less than an inch wide let alone less than a
    millimeter wide. Maybe in a special label printer, but is this class of
    device going to make use of this standard? Most printers would have many
    such labels on a single sheet. But as long as a description of this
    situation is not required, it can remain in the ABNF.

    Also, in response to Don Wright's email, I have proposed that the "x" be
    changed to a "-".

            Ron

    -----Original Message-----
    From: Hastings, Tom N [mailto:hastings@cp10.es.xerox.com]
    Sent: Thursday, May 03, 2001 3:22 PM
    To: ipp (E-mail)
    Subject: IPP> How does this ABNF look for the Media Size Self Describing
    Name?

    How does this ABNF look for the Media Size Self Describing Name?

    We agreed in Portland that if a size was ever smaller than an inch or a mm,
    the it would have a single zero for the integer part. Otherwise, the
    integer part is without leading zeros. Also the fraction part, if present,
    has no trailing zeros. I left the prefix as a separate token because we
    probably want to mention it in the text as a separate section:

    5.1.1 prefix This string part is present to indicate the name space or
    jurisdiction for the size name in order to prevent name clashes. Examples
    include "na" for North America, "iso" for the International Standards
    Organization, etc.
     

    Thanks,
    Tom

       media-size-self-describing-name = size-name "_" short-dim "x" long-dim
    units
       size-name = prefix "-" lowalpha *( lowalpha | digit | "-" )
       prefix = lowalpha *lowalpha
       short-dim = dim
       long-dim = dim
       units = "in" | "mm"
       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"

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