Re: [XEmacs] signal vs. error

Thursday, 6 January 2000

        Per Abrahamsen <abraham(a)dina.kvl.dk&gt; writes:

...
 There is a lot of changes in customize like this:

 -           (error "Keyword %s is missing an argument" keyword))
 +           (signal 'error (list "Keyword is missing an argument"
keyword)))

 What is the purpose of that change? 
Providing actual arguments to errors is a good idea, especially in
low-level code.  Code that traps the error can in that case get more
context about the error without the need to parse the error message
string.  Most errors in XEmacs C code are signaled that way.

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