Assuming that you do indeed mean Layer Standard, and not Layer Key Style, and farther assuming that you do not consider what you can see in the Layer Standard Properties dialog does not constitue "reading", the best I can offer is the ability to export a Layer Standard to a text file. You could print that out and "read" it, but it is not a real page turner. In 2004 and later, you should be able to run the AecLayerSaveStdAsText AutoLISP function to generate a text file with the contents of the Layer Standard in it. The syntax is:
(AecLayerSaveStdAsText "LayerStandardNameHereInDoubleQuotes" "Drive:\\Path\\FileName.txt")
You will, of course, need to substitute the actual Layer Standard name, enclosed in double quotation marks, for "LayerStandardNameHereInDoubleQuotes" and the drive letter, path and file name of the text file you want to create, enclosed in double quotation marks, for "Drive:\\Path\\FileName.txt". For the latter, you can use a single forward slash in lieu of the double back slashes, to separate the drive letter, folder names and file name, if you want. Single back slashes, however, will not work (it is a LISP thing).
There is an ARX file that defines that AutoLISP function, along with other Layer-Standard-related functions, that has to be loaded for the function to work. This ARX file is not automatically loaded when you start ADT/ACD-A, and will not be demand loaded just by calling the AutoLISP function. You can find more on this in this blog article:
http://architects-desktop.blogspot.com/2007/06/acaadt-layer-lisp-functions.html
along with a link to Mark Webb's PDF that summarizes the various commands and what they do. Note also that ARX file name for both the 2008 and 2009 releases is the "unversioned" AecLMgrLisp.arx.
A brief excerpt from the beginning of the Layer Standard that is used where I work follows, to give you a sense of what the output of this function will be. There is also a function that will allow you to import a Layer Standard from a text file. I found this useful for getting the Minor1 and Minor2 Descriptive Fields to have the same pre-loaded values, without having to enter the values twice in the dialogs. There are also export and import functions that write to a "non-readable" LDF format, if the only reason for the export/import is to transfer a Layer Standard between machines without using a drawing file.
**EC Layer Standard
*c
-
Name Discipline Designator 1
MaxWidth 1
Delimiter
Wcmatch [~.],[~.][~.]
Optional No
Fixed Yes
Default A
MustMatch No
-
Name Discipline Designator 2
MaxWidth 1
Delimiter
Wcmatch [~.],[~.][~.]
Optional Yes
Fixed Yes
Default D
MustMatch No
-
Name Major
MaxWidth 4
Delimiter -
Wcmatch [~.][~.][~.][~.]
Optional No
Fixed Yes
Default Wall
MustMatch No
-
Name Minor1
MaxWidth 4
Delimiter -
Wcmatch *
Optional Yes
Fixed Yes
Default Iden
MustMatch No
-
Name Minor2
MaxWidth 4
Delimiter -
Wcmatch *
Optional Yes
Fixed Yes
Default Text
MustMatch No
-
Name Status
MaxWidth 1
Delimiter -
Wcmatch *
Optional Yes
Fixed Yes
Default N
MustMatch No
*
*d
-
Discipline Designator
0 1
A Architectural
*+
D Architectural Demolition
E Architectural Elements
F Architectural Finishes
G Architectural Graphics
I Architectural Interior
J Architectural (User Defined)
K Architectural (User Defined)
P Architectural Paving
S Architectural Site
T Architectural Transportation
*-
B Geotechnical
*+
J Geotechnical (User Defined)
K Geotechnical (User Defined)
*-
etc, etc, etc.
David Koch
AutoCAD Architecture and Revit User
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