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Parameter references

The ADAM versions of MSG and ERR allow reference to ADAM program parameters within the message text. Reference can be made either to parameter-keyword associations or to the name of an ADAM data system object, data file or device associated with a parameter. In message text used in calls to MSG and ERR routines these parameter associations are indicated by the percent, ``%'', and dollar, ``$'', escape characters respectively. EMS does not have access to the ADAM parameter system and so cannot refer to ADAM parameters in the text of messages. The escape characters ``%'' and ``$'' are therefore treated literally as part of the message text in calls to EMS_REP and EMS_EXPND (or the deprecated EMS_MLOAD), as they are in the stand-alone versions of MSG and ERR.



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EMS Error Message Service
Starlink System Note 4
P C T Rees
A J Chipperfield
28 September 2001
E-mail:ussc@star.rl.ac.uk

Copyright © 2001 Council for the Central Laboratory of the Research Councils