1package humanize
 2
 3import (
 4	"strconv"
 5	"strings"
 6)
 7
 8func stripTrailingZeros(s string) string {
 9	offset := len(s) - 1
10	for offset > 0 {
11		if s[offset] == '.' {
12			offset--
13			break
14		}
15		if s[offset] != '0' {
16			break
17		}
18		offset--
19	}
20	return s[:offset+1]
21}
22
23func stripTrailingDigits(s string, digits int) string {
24	if i := strings.Index(s, "."); i >= 0 {
25		if digits <= 0 {
26			return s[:i]
27		}
28		i++
29		if i+digits >= len(s) {
30			return s
31		}
32		return s[:i+digits]
33	}
34	return s
35}
36
37// Ftoa converts a float to a string with no trailing zeros.
38func Ftoa(num float64) string {
39	return stripTrailingZeros(strconv.FormatFloat(num, 'f', 6, 64))
40}
41
42// FtoaWithDigits converts a float to a string but limits the resulting string
43// to the given number of decimal places, and no trailing zeros.
44func FtoaWithDigits(num float64, digits int) string {
45	return stripTrailingZeros(stripTrailingDigits(strconv.FormatFloat(num, 'f', 6, 64), digits))
46}