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+--- Thread: question : a trick to call function from a variable (/thread-7002.html)
question : a trick to call function from a variable - primer - 10-08-2016 10:12 PM
hello,
I have a function name in a variable, and I would like to call it, some one know how to do ?
example :
Code:
EXPORT myfct(x)
BEGIN
PRINT(x);
END;
EXPORT test(fct)
BEGIN
local call:=fct+"(123)";
EVAL(call);
END;But it does not works as I wanted :
it returns "myfct(123)" but does not execute it...
if someone can help me..
Thank you.
RE: question : a trick to call function from a variable - StephenG1CMZ - 10-08-2016 11:09 PM
I think
EVAL(EXPR(call))
Or perhaps just
EXPR(call)
Will do what you want.
RE: question : a trick to call function from a variable - primer - 10-09-2016 11:14 AM
Hi StephenG1CMZ,
Thank you very much, it's OK.
By the way, a note for thoses who may want to use such callback trick : if you want to use string as function parameters, you have to protect them with backslashs (\").
For example par2 accept string abcd
Code:
EXPORT myfct(par1, par2)
BEGIN
PRINT(par1+" and "+par2);
END;
EXPORT test(fct)
BEGIN
local call:=fct+"(123,\"abcd\")";
EVAL(call);
END;