A number of us have looked at the problem posed by Harry and Mark to define
a very simple "all-in-one" name syntax. This is our proposal. The entire
proposal is three pages, plus examples, including listing the values that we
currently have for Media Type and Media Color in the D0.5 draft. The
attached .doc file is the MS-WORD version.
We suggest that it could be a separate section or an Appendix in the Media
Names Standard. Comments?
Thanks,
Tom and Bob
Subj: Proposal for Simple Media Self Describing Names
From: Tom Hastings, Bob Herriot
File: simple-self-describing-names-010406.doc
Date: 4/6/01
This paper proposes a very simple definition for Media Self Describing
Names. It meets the objectives suggested by Harry and Mark for "all-in-one"
names. We think that calling these names Media Self Describing Names will
make the intent more clear. We suggest that Media Self Describing Names be
added to the next draft, either as a new section or an Appendix, to go along
side the D0.5 Draft Media Names which are: Media Size Self Describing
Names, Media Type Names, and Media Color Names.
Summary of Media Self Describing Names
The central idea for the Media Self Describing Name is to provide a simple
naming syntax that describes all of the salient characteristics of the
media. Each salient characteristic is represented as a field separated by a
"." character, starting with the Media Size Self Describing Name field.
Each field, except for size, has a default value, which is the most commonly
used value. To shorten the names and to follow existing media naming
practice, the default value is never represented in the name. For example,
the name: 'na-letter.8500-11000' represents white stationery, without holes,
and not recycled, etc, and the name:
'na-personal.3625-6500.envelope.bond.blue' represents a blue bond personal
envelope, not recycled, etc. This syntax is compatible with the IPP keyword
syntax (all lower case, plus "." and "-") and can be used with the current
IPP/1.1 client and Printer implementations of "media", "media-default",
"media-ready", and "media-supported" attributes.
A valid Media Self Describing Name MUST include the Media Size Self
Describing Name (both Size Name and Dimensions fields as defined in the D0.5
Draft) followed by other fields which MUST be in the following order:
Field Example Default Value
----- ------- ------------
1 Media Size Self Describing Name na-letter.8500-11000 --
2 Media Type Name envelope stationery
3 Media Stock Type Name bond plain
4 Media Color Name red white
5 Media Weight Name 80-gram unspecified
6 Media Hole Count Name holes-3 holes-0
7 Media Preprinted Name letterhead none
8 Media Recycled Name recycled none
9 Media Front Coating Name front-matte none
10 Media Back Coating Name back-glossy none
11 Media Order Count Name ordered-5 ordered-1
Any field whose value is the indicated default value MUST be omitted,
including the "." separator character.
Implementers MAY add additional fields. They MUST occur after the fields
defined in this standard. Implementers MAY add additional field values to
defined fields.
Note that if a given field is not supported by an implementation, omitting
that field is assumed to have the meaning as the default value. Thus this
specification allows implementations to support whatever additional fields
they want in addition to the REQUIRED Media Size Self Describing field.
Thus there is no burden on implementations in defining the following
additional fields in our Media Names standard. These definitions also
provide a simple one-to-one mapping to the PWG IEEE-ISTO 5100.3 Production
Printing Attributes - Set1 extension.
Values for each field of Media Self Describing Names
This section lists the values defined for each field of a Media Self
Describing Name. The order presented is the same as is REQUIRED in the name
when other than the default value is being represented.
Media Size Self Describing Name (see D0.5 Draft):
The ABNF for the Media Size Self Describing Name is:
["na-"] size_name "." short_dim "-" long_dim
Media Type Name (see D0.5 Draft):
stationery -- default
transparency
envelope
envelope-plain
envelope-window
continuous
continuous-long
continuous-short
tab-stock
pre-cut-tabs
full-cut-tabs
multi-part-form
labels
multi-layer
screen
screen-paged
photographic
cardstock
and we've agreed to add 'roll' and drop 'other'
Media Stock Type Name:
none -- default
bond
newsprint
bristol
Media Color Name (see D0.5 Draft):
no-color -- ISSUE - get rid of this and clarify white to mean
-- clear for transparency - white is the absence of
-- color
white -- default
pink
yellow
blue
green
buff
goldenrod
red
gray
ivory
orange
Media Weight Name:
unspecified -- default
nnn-grams
The default value is 'unspecified', meaning that leaving out the weight
means that the weight is unspecified.
Media Hole Count Name:
holes-0 -- default
holes-1
holes-2
holes-3
holes-4
holes-5
Media Preprinted Name:
none -- default
preprinted
letterhead
Media Recycled Name:
none -- default
recycled
The Media Front Coating Name:
none -- default
front-glossy
front-high-gloss
front-semi-gloss
front-satin
front-matte
The Media Back Coating Name:
none -- default
back-glossy
back-high-gloss
back-semi-gloss
back-satin
back-matte
Media Order Count Name:
ordered-1 -- default
ordered-2
ordered-3
ordered-4
ordered-5
ordered-6
Examples
na-letter.8500-11000 -- white stationery, no holes, etc. In other words,
the size name by itself is the white stationery media, as in IPP
na-personal.3625-6500.envelope -- white envelope, no holes, not recycled,
etc.
na-letter.8500-11000.transparency -- clear transparency (see issue above)
na-3x5.3000-5000.photographic.front-matte -- white photographic front matte
na-3x5.3000-5000.cardstock.blue -- blue 3x5 card stock
na-letter.8500-11000.blue -- blue stationery, no holes,
etc.
na-letter.8500-11000.front-glossy -- white glossy on front side
na-letter.8500-11000.front-glossy.back-glossy -- white glossy both sides
na-letter.8500-11000.holes-3 -- three holed white stationery
na-letter.8500-11000.envelope.blue -- blue envelope
na-letter.8500-11000.recycled -- recycled white stationery
na-letter.8500-11000.envelope.blue.recycled -- recycled blue envelope
na-letter.8500-11000.bond -- white bond stationery, no holes,
etc.
na-letter.8500-11000.envelope.bond -- white bond envelope, etc.
na-letter.8500-11000.letterhead.bond -- white bond letterhead, etc.
na-letter.8500-11000.80-gram -- 80 grams per square meter white stationery.
All of the examples above this one are of an unspecified weight, while this
one is 80 grams per square meter weight.
<<simple-self-desccribing-names-010406.doc>>
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