init

converter/converter.go

@@ -0,0 +1,100 @@
+// Copyright © 2018 ehlxr <ehlxr.me@gmail.com>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package converter
+
+import (
+	"math"
+	"strconv"
+	"strings"
+
+	"github.com/ehlxr/hex-convert/metadata"
+)
+
+func ToDecimal(scale int, data string) (int, error) {
+	var new_num float64
+	new_num = 0.0
+	nNum := len(strings.Split(data, "")) - 1
+	for _, value := range strings.Split(data, "") {
+		tmp := float64(findkey(value))
+		if tmp != -1 {
+			new_num = new_num + tmp*math.Pow(float64(scale), float64(nNum))
+			nNum = nNum - 1
+		} else {
+			break
+		}
+	}
+	return int(new_num), nil
+}
+
+func ToBinary(scale int, data string) (string, error) {
+	result, err := ToDecimal(scale, data)
+	if err != nil {
+		return "", err
+	}
+
+	return fromDecimal(2, result)
+}
+
+func ToHex(scale int, data string) (string, error) {
+	result, err := ToDecimal(scale, data)
+	if err != nil {
+		return "", err
+	}
+
+	return fromDecimal(16, result)
+}
+
+func ToOctal(scale int, data string) (string, error) {
+	result, err := ToDecimal(scale, data)
+	if err != nil {
+		return "", err
+	}
+
+	return fromDecimal(8, result)
+}
+
+func findkey(in string) int {
+	result := -1
+	for k, v := range metadata.TEN_TO_ANY {
+		if in == v {
+			result = k
+		}
+	}
+	return result
+}
+
+func fromDecimal(scale, data int) (string, error) {
+	new_num_str := ""
+	var remainder int
+	var remainder_string string
+	for data != 0 {
+		remainder = data % scale
+		if 76 > remainder && remainder > 9 {
+			remainder_string = metadata.TEN_TO_ANY[remainder]
+		} else {
+			remainder_string = strconv.Itoa(remainder)
+		}
+		new_num_str = remainder_string + new_num_str
+		data = data / scale
+	}
+
+	return new_num_str, nil
+}