Scott
Is the explanation in this reference what you hoped you had correctly
recalled?:
<quote>
2.3.4.3 Rules for coding IEASYMxx
Follow these rules when coding IEASYMxx:
1. Define new system symbols that are 1- through 8 characters long,
excluding the required ampersand and the optional period. For example, you
can define a system symbol called &PAGESYM3, which contains an 8-
character name, using the following SYMDEF statement:
SYMDEF(&PAGESYM3='LOCAL3')
2. Do not define resolved substitution texts that are longer than system
symbol names (including the required ampersand and excluding the optional
period).
</quote>
If so this removes concern over the substitution text expanding the space
occupied by the symbol text.
Chris Mason
On Mon, 27 Jul 2009 15:47:55 -0400, Scott Rowe <[email protected]>
wrote:
>IIRC, system symbol values CAN NOT be longer than the name of the symbol
(including the ampersand).
>
>>>> Martin Kline <[email protected]> 7/27/2009 2:58 PM >>>
>My test showed system symbols were replaced by removing or adding
>characters as necessary. (Because I can't remember exactly how to get
>ampersands to diplay correctly on the list server and I'm too lazy to look it
up,
>my examples will use pound signs, '#', instead).
>
>For example '---#SYSNAME---' is displayed as '---SYS1---'. At least on the
>1.9 release I have installed. This does NOT display as '---SYS1 ---'.
>
>My advice is if you depend on exact positioning for the other characters on
>the screen such as drawing a box around your data, or drawing a pic of a
>dinosaur (like I do), then use SBA orders to position the trailing data
correctly.
>
>As Chris indicated, the other non-system symbols that can be replaced do
>specify what happens with alignment, spaces, numerics, etc. The issue is
with
>the system symbols, because the names of the variables may be either
longer
>or shorter than the values that get substituted.
>
>Bonus question:
>
>If your USS message contains SBA orders, and the address happens to end
in
>X'7C', such as such as X'11C17C' for row 2 column 45 on an 80-character
wide
>screen, and the following characters happen to match one of the allowed
>keywords, what happens? Likewise, what happens when the SBA happens to
>end in X'50'?
>
>
>Chris said:
>>I too would be interested in testing mainly because the manner in which the
>>MVS system symbol is inserted totally absent from the description, a
>>deficiency on a par with the botched way in which this new function has
>>been described.
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