RosettaCodeData/Task/Letter-frequency/FutureBasic/letter-frequency.basic

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include "NSLog.incl"
include resources "MyTextFile.txt"
void local fn DoIt
CFURLRef url
CFStringRef string
NSUInteger length, index
unichar chr
CountedSetRef set
CFNumberRef number
url = fn BundleURLForResource( fn BundleMain, @"MyTextFile", @"txt", NULL )
string = fn StringWithContentsOfURL( url, NSUTF8StringEncoding, NULL )
if ( string )
set = fn CountedSetWithCapacity(0)
length = len(string)
for index = 0 to length - 1
chr = fn StringCharacterAtIndex( string, index )
CountedSetAddObject( set, @(chr) )
next
for number in set
NSLog(@"%C = %ld",intVal(number),fn CountedSetCountForObject( set, number ))
next
end if
end fn
fn DoIt
HandleEvents