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. mycmd6 sum mpg weight if foreign
program define mycmd6 /* `0' : sum mpg weight if foreign */
version 6.0
gettoken subcmd 0 : 0 /* `subcmd' : sum */
/* `0' : mpg weight if foreign */
syntax [varlist] [if] [in]
if "`subcmd'" == "sum" {
...
}
...
end
This is similar to the following in Perl:
($subcmd,$zero) = split(/ /,$zero,2) ;
