RosettaCodeData/Task/Partial-function-application/REXX/partial-function-applicatio...

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1.5 KiB
Rexx

/*REXX program demonstrates a method of a partial function application. */
s=; do a=0 to 3 /*build 1st series of some low integers*/
s=strip(s a) /*append to the integer to the S list*/
end /*a*/
call fs 'f1',s; say 'for f1: series=' s", result=" result
call fs 'f2',s; say 'for f2: series=' s", result=" result
s=; do b=2 to 8 by 2 /*build 2nd series, low even integers. */
s=strip(s b) /*append to the integer to the S list*/
end /*b*/
call fs 'f1',s; say 'for f1: series=' s", result=" result
call fs 'f2',s; say 'for f2: series=' s", result=" result
exit /*stick a fork in it, we're all done. */
/*────────────────────────────────────────────────────────────────────────────*/
f1: return arg(1)* 2
f2: return arg(1)**2
/*────────────────────────────────────────────────────────────────────────────*/
fs: procedure; arg f,s; $=; do j=1 for words(s); z=word(s,j)
interpret '$=$' f"("z')'
end /*j*/
return strip($)