32 lines
599 B
Go
32 lines
599 B
Go
package trinary
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import (
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"errors"
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"fmt"
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"math"
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)
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// ParseTrinary takes a trinary string and returns the
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// decimal value
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func ParseTrinary(in string) (int64, error) {
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fmt.Println("=== New Parse (" + in + ") ===")
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var ret int
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place := len(in)
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for i := range in {
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fmt.Print("Finding ", (place - i), " place value ", string(in[i]))
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switch in[i] {
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case '0':
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case '1':
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ret = ret + ((place - i) * 3)
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case '2':
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ret = ret + ((place - i) * int(math.Pow(3, 2)))
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default:
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return 0, errors.New("Invalid String")
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}
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fmt.Println("==", ret)
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place--
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}
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return int64(ret), nil
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}
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