RosettaCodeData/Task/Look-and-say-sequence/FutureBasic/look-and-say-sequence.basic

37 lines
864 B
Plaintext

include "NSLog.incl"
local fn LookAndSay( testWord as CFStringRef ) as CFStringRef
NSUInteger i, length, times
CFMutableStringRef result = fn MutableStringWithCapacity(0)
unichar repeat = fn StringCharacterAtIndex( testWord, 0 )
times = 1
testWord = fn StringWithFormat( @"%@ ", fn StringSubstringFromIndex( testWord, 1 ) )
length = len(testWord)
for i = 0 to length - 1
unichar actual = fn StringCharacterAtIndex( testWord, i )
if ( actual != repeat )
MutableStringAppendFormat( result, @"%d%c", times, repeat )
times = 1
repeat = actual
else
times++
end if
next
end fn = fn StringWithString( result )
void local fn DoIt
NSUInteger i
CFStringRef numStr = @"1"
for i = 1 to i <= 15
NSLog( @"%@", numStr )
numStr = fn LookAndSay( numStr )
next
end fn
fn DoIt
HandleEvents