Bob,
Not so simple. Here is a specific example:
xyz..ibis is in "C:/.../library/ibis/".
"C:/.../library/ibis/" is 128 characters long.
The "system path name" of xyz.ibs is 128+7=135 characters long.
In xyz.ibs is a file "<pkg folder/>xyz.ims".
<pkg folder/> is 100 characters long.
"<pkg folder/>xyz.ims" is 100+7=107 characters long
In xyz.ims is a file "<subckt folder/>xyz.s256p"
< subckt folder /> is 100 characters long.
"<pkg folder/>< subckt folder /> xyz. xyz.s256p" is 100+100+9=209
characters long relative to directory containing the .ibs file ("full path
name")
"C:/.../library/ibis/"<pkg folder/>< subckt folder /> xyz.s256p" is
128+209=337 characters long ("system path name")
Translating the following statement
If there are "file names" specified in files referenced by the IBIS file,
then the full path name relative to the directory containing the IBIS file
shall not exceed one hundred and twenty eight (128) characters.
For this example:
If there are "file names" (xyz.s256p) specified in files referenced by the
IBIS file ("<pkg folder/>xyz.ims". ), then the full path name relative to
the directory containing the IBIS file ("<pkg folder/>< subckt folder />
xyz. xyz.s256p" = 209) shall not exceed one hundred and twenty eight (128)
characters.
I think the wording is precise and correct. To Arpads point I think we
should define:
"full path name" is the name of a file in the IBIS file and in any file
referenced in the IBIS file including all of the folders in the file name
between the directory containing the IBIS file.
"system path name" is the name of the file in the IBIS file and in any
file referenced in the IBIS file including all of the folders in the file
name between the file system root directory and the file.
Walter
Walter Katz
<mailto:wkatz@xxxxxxxxxx> wkatz@xxxxxxxxxx
Phone 303.449-2308
Mobile 303.335-6156
From: Bob Ross [mailto:bob@xxxxxxxxxxxxxxxxx] ;
Sent: Wednesday, April 19, 2017 12:34 AM
To: wkatz@xxxxxxxxxx; 'IBIS-ATM' <ibis-macro@xxxxxxxxxxxxx>
Subject: RE: [ibis-macro] Bird 186.3_Draft_1 (character length
restrictions on file naming rules.
Walter,
"File name" is optional path plus base name plus optional extension.
The base name plus (optional) extension is limited to 64 characters,
Optional path is limited to 64 characters
Why do we need the additional statement below, which is always satisifed?
If there are "file names" specified in files referenced by the IBIS file,
then the full path name relative to the directory containing the IBIS file
shall not exceed one hundred and twenty eight (128) characters.
Bob
From: <mailto:ibis-macro-bounce@xxxxxxxxxxxxx>
ibis-macro-bounce@xxxxxxxxxxxxx [ <mailto:ibis-macro-bounce@xxxxxxxxxxxxx>
mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Walter Katz
Sent: Tuesday, April 18, 2017 1:17 PM
To: IBIS-ATM
Subject: [ibis-macro] Bird 186.3_Draft_1 (character length restrictions on
file naming rules.
All,
The new paragraph below in red was added to 186.3. Two other lines were
deleted as a result.
3. "file name" shall mean the name of the file, including the path
relative to the directory containing the file that references the "file
name". A "file name" may not be a directory. The "file name" has three
sections, "path name" (optional), "base name" and "extension name"
(characters following the last "." In "file name"). The number of
character in the combined "base name" and "extension name" shall not
exceed sixty-four (64) characters. The number of characters in "path name"
shall not exceed sixty-four (64) characters. If there are "file names"
specified in files referenced by the IBIS file, then the full path name
relative to the directory containing the IBIS file shall not exceed one
hundred and twenty eight (128) characters.
The file name must use characters from the following set (space, " ", 0x20
is not included):
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
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
0 1 2 3 4 5 6 7 8 9 _ ^ $ ~ ! # % & - { } ) ( @ ' ` . /
Note that files names in the Windows operating system are case insensitive
and case preserving, while file names in Linux operating systems are case
sensitive. When a <https://en.wikipedia.org/wiki/Computer> computer
<https://en.wikipedia.org/wiki/File_system> file system stores file names,
the computer may keep or discard
<https://en.wikipedia.org/wiki/Letter_case> case information. When the
case is stored, it is called case preservation. File names in IBIS files
should be case sensitive so that the IBIS file and the files it references
will work properly on both Windows and Linux operating systems. The "/"
character is used to delineate directories in a file name. The character
sequence "../" is not permitted, except that it is permitted if generated
by the EDA tool. Absolute or relative paths can be generated by the EDA
tool in applications as needed. The EDA tool is responsible for making any
operating system-specific adjustments (for example, replacing forward
slashes "/" with backslashes "\") if necessary.
The characters after the last "." are considered the file name extension,
where the extension shall not contain a "/". There are places in this
document that specify the file name extension for specific files types
(e.g. .ibs, .pkg, and .ami). These extensions are case sensitive.
A "file name" may not be a directory.
Directory (path) names follow the same rules as file names, except that
they shall be the name of a directory.
Walter Katz
<mailto:wkatz@xxxxxxxxxx> wkatz@xxxxxxxxxx
Phone 303.449-2308
Mobile 303.335-6156
