Programmer Guide/Command Reference/SET: Difference between revisions
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{{DISPLAYTITLE:{{SUBPAGENAME}}}} | {{DISPLAYTITLE:{{SUBPAGENAME}}}} | ||
var := SET anyvalue | <var>var</var> := SET anyvalue | ||
Assign a value to a variable. For example: | Assign a value to a variable. For example: | ||
#question := set 'How much wood would a wood chuck chuck?' | <var>#question</var> := set 'How much wood would a wood chuck chuck?' | ||
Under certain conditions it is possible to omit the <code>SET</code> keyword altogether, but this is strongly discouraged | Under certain conditions it is possible to omit the <code>SET</code> keyword altogether, but this is strongly discouraged because you can never be sure if these conditions apply (we can't either). | ||
For the curious: The keyword <code>SET</code> may be omitted if (and only if) the first word of the value to assign is ''neither'' a built-in {{STX}} command ''nor'' the name of a macro, member function, and so on. Since this is nearly impossible to guarantee, we strongly encourage to ''never omit the <code>SET</code> keyword.'' | For the curious: The keyword <code>SET</code> may be omitted if (and only if) the first word of the value to assign is ''neither'' a built-in {{STX}} command ''nor'' the name of a macro, member function, and so on. Since this is nearly impossible to guarantee, we strongly encourage to ''never omit the <code>SET</code> keyword.'' | ||
Revision as of 18:07, 29 April 2014
var := SET anyvalue
Assign a value to a variable. For example:
#question := set 'How much wood would a wood chuck chuck?'
Under certain conditions it is possible to omit the SET keyword altogether, but this is strongly discouraged because you can never be sure if these conditions apply (we can't either).
For the curious: The keyword SET may be omitted if (and only if) the first word of the value to assign is neither a built-in STx command nor the name of a macro, member function, and so on. Since this is nearly impossible to guarantee, we strongly encourage to never omit the SET keyword.
