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47 lines
936 B
47 lines
936 B
5 years ago
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package humanize
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import (
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"strconv"
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"strings"
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)
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func stripTrailingZeros(s string) string {
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offset := len(s) - 1
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for offset > 0 {
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if s[offset] == '.' {
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offset--
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break
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}
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if s[offset] != '0' {
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break
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}
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offset--
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}
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return s[:offset+1]
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}
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func stripTrailingDigits(s string, digits int) string {
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if i := strings.Index(s, "."); i >= 0 {
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if digits <= 0 {
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return s[:i]
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}
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i++
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if i+digits >= len(s) {
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return s
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}
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return s[:i+digits]
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}
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return s
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}
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// Ftoa converts a float to a string with no trailing zeros.
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func Ftoa(num float64) string {
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return stripTrailingZeros(strconv.FormatFloat(num, 'f', 6, 64))
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}
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// FtoaWithDigits converts a float to a string but limits the resulting string
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// to the given number of decimal places, and no trailing zeros.
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func FtoaWithDigits(num float64, digits int) string {
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return stripTrailingZeros(stripTrailingDigits(strconv.FormatFloat(num, 'f', 6, 64), digits))
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}
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