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Ingy döt Net 2013-04-10 23:57:08 -07:00
parent 47bf37c096
commit b83f433714
12433 changed files with 156208 additions and 123 deletions
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12
Task/Parsing-RPN-calculator-algorithm/PicoLisp/parsing-rpn-calculator-algorithm-1.l Normal file
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(de rpnCalculator (Str)
(let (^ ** Stack) # Define '^' from the built-in '**'
(prinl "Token Stack")
(for Token (str Str "*+-/\^")
(if (num? Token)
(push 'Stack @)
(set (cdr Stack)
((intern Token) (cadr Stack) (pop 'Stack)) ) )
(prin Token)
(space 6)
(println Stack) )
(println (car Stack)) ) )

17
Task/Parsing-RPN-calculator-algorithm/PicoLisp/parsing-rpn-calculator-algorithm-2.l Normal file
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: (rpnCalculator "3 4 2 * 1 5 - 2 3 \^ \^ / +")
Token Stack
3 (3)
4 (4 3)
2 (2 4 3)
* (8 3)
1 (1 8 3)
5 (5 1 8 3)
- (-4 8 3)
2 (2 -4 8 3)
3 (3 2 -4 8 3)
^ (8 -4 8 3)
^ (65536 8 3)
/ (0 3)
+ (3)
3
-> 3