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Re: MESSAGE facility
| Re: MESSAGE facility [message #8757] |
Wed, 23 April 1997 00:00  |
peter
Messages: 80
Registered: February 1994
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David Fanning (davidf@dfanning.com) wrote:
: Wayne Landsman writes :
: > One change in IDL V5.0 is that the default response of the MESSAGE
: > facility is now to include a traceback. At least, as of V5.0B5 there
: > is no way to suppress this response, e.g. there is no /NOTRACEBACK
: > keyword. This can lead to the following disconcerting behavior. A
: > function call that in V4.0.1 yields the following response:
: >
: > IDL> a = dbfind('dec>0')
: > % DB_INFO: No data base file(s) opened
: >
: > becomes in V5.0B5
: >
: > STIS>a = dbfind('dec>0')
: > % DB_INFO: No data base file(s) opened
: > % Error occurred at: DB_INFO 112/share/idl/astro_util/db_info.pro
: > % DBFIND 137/share/idl/astro_util/dbfind.pro
: > % $MAIN$
: > % Execution halted at:$MAIN$
: I am absolutely in favor of having a traceback option on the MESSAGE
: routine. How many times have I known there was an error in my
: code, but not where it was!
: But I agree with Wayne. I don't want it as the default. I want my
: users to see something more gentle and helpful. Please give me
: a keyword that can turn the trace on and perhaps (am I asking
: too much?) a variable to save it in! :-)
Can this be handled by using CATCH? Or will that only work when the
error is not at the main program level?
Peter
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