forked from flashcat/categraf
74 lines
1.4 KiB
Go
74 lines
1.4 KiB
Go
package conv
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import (
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"fmt"
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"strconv"
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)
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// ToFloat64 convert interface to float64
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func ToFloat64(val interface{}) (float64, error) {
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switch v := val.(type) {
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case string:
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if f, err := strconv.ParseFloat(v, 64); err == nil {
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return f, nil
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}
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// try int
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if i, err := strconv.ParseInt(v, 0, 64); err == nil {
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return float64(i), nil
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}
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// try bool
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b, err := strconv.ParseBool(v)
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if err == nil {
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if b {
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return 1, nil
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} else {
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return 0, nil
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}
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}
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if v == "Yes" || v == "yes" || v == "YES" || v == "Y" || v == "ON" || v == "on" || v == "On" || v == "ok" || v == "up" {
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return 1, nil
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}
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if v == "No" || v == "no" || v == "NO" || v == "N" || v == "OFF" || v == "off" || v == "Off" || v == "fail" || v == "err" || v == "down" {
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return 0, nil
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}
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return 0, fmt.Errorf("unparseable value %v", v)
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case float64:
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return v, nil
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case uint64:
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return float64(v), nil
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case uint32:
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return float64(v), nil
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case uint16:
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return float64(v), nil
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case uint8:
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return float64(v), nil
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case uint:
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return float64(v), nil
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case int64:
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return float64(v), nil
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case int32:
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return float64(v), nil
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case int16:
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return float64(v), nil
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case int8:
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return float64(v), nil
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case bool:
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if v {
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return 1, nil
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} else {
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return 0, nil
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}
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case int:
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return float64(v), nil
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case float32:
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return float64(v), nil
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default:
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return strconv.ParseFloat(fmt.Sprint(v), 64)
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}
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}
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