mirror of
https://github.com/go-gitea/gitea
synced 2024-12-29 16:14:36 +01:00
116 lines
2.4 KiB
Go
116 lines
2.4 KiB
Go
package humanize
|
|
|
|
import (
|
|
"bytes"
|
|
"math"
|
|
"math/big"
|
|
"strconv"
|
|
"strings"
|
|
)
|
|
|
|
// Comma produces a string form of the given number in base 10 with
|
|
// commas after every three orders of magnitude.
|
|
//
|
|
// e.g. Comma(834142) -> 834,142
|
|
func Comma(v int64) string {
|
|
sign := ""
|
|
|
|
// Min int64 can't be negated to a usable value, so it has to be special cased.
|
|
if v == math.MinInt64 {
|
|
return "-9,223,372,036,854,775,808"
|
|
}
|
|
|
|
if v < 0 {
|
|
sign = "-"
|
|
v = 0 - v
|
|
}
|
|
|
|
parts := []string{"", "", "", "", "", "", ""}
|
|
j := len(parts) - 1
|
|
|
|
for v > 999 {
|
|
parts[j] = strconv.FormatInt(v%1000, 10)
|
|
switch len(parts[j]) {
|
|
case 2:
|
|
parts[j] = "0" + parts[j]
|
|
case 1:
|
|
parts[j] = "00" + parts[j]
|
|
}
|
|
v = v / 1000
|
|
j--
|
|
}
|
|
parts[j] = strconv.Itoa(int(v))
|
|
return sign + strings.Join(parts[j:], ",")
|
|
}
|
|
|
|
// Commaf produces a string form of the given number in base 10 with
|
|
// commas after every three orders of magnitude.
|
|
//
|
|
// e.g. Commaf(834142.32) -> 834,142.32
|
|
func Commaf(v float64) string {
|
|
buf := &bytes.Buffer{}
|
|
if v < 0 {
|
|
buf.Write([]byte{'-'})
|
|
v = 0 - v
|
|
}
|
|
|
|
comma := []byte{','}
|
|
|
|
parts := strings.Split(strconv.FormatFloat(v, 'f', -1, 64), ".")
|
|
pos := 0
|
|
if len(parts[0])%3 != 0 {
|
|
pos += len(parts[0]) % 3
|
|
buf.WriteString(parts[0][:pos])
|
|
buf.Write(comma)
|
|
}
|
|
for ; pos < len(parts[0]); pos += 3 {
|
|
buf.WriteString(parts[0][pos : pos+3])
|
|
buf.Write(comma)
|
|
}
|
|
buf.Truncate(buf.Len() - 1)
|
|
|
|
if len(parts) > 1 {
|
|
buf.Write([]byte{'.'})
|
|
buf.WriteString(parts[1])
|
|
}
|
|
return buf.String()
|
|
}
|
|
|
|
// CommafWithDigits works like the Commaf but limits the resulting
|
|
// string to the given number of decimal places.
|
|
//
|
|
// e.g. CommafWithDigits(834142.32, 1) -> 834,142.3
|
|
func CommafWithDigits(f float64, decimals int) string {
|
|
return stripTrailingDigits(Commaf(f), decimals)
|
|
}
|
|
|
|
// BigComma produces a string form of the given big.Int in base 10
|
|
// with commas after every three orders of magnitude.
|
|
func BigComma(b *big.Int) string {
|
|
sign := ""
|
|
if b.Sign() < 0 {
|
|
sign = "-"
|
|
b.Abs(b)
|
|
}
|
|
|
|
athousand := big.NewInt(1000)
|
|
c := (&big.Int{}).Set(b)
|
|
_, m := oom(c, athousand)
|
|
parts := make([]string, m+1)
|
|
j := len(parts) - 1
|
|
|
|
mod := &big.Int{}
|
|
for b.Cmp(athousand) >= 0 {
|
|
b.DivMod(b, athousand, mod)
|
|
parts[j] = strconv.FormatInt(mod.Int64(), 10)
|
|
switch len(parts[j]) {
|
|
case 2:
|
|
parts[j] = "0" + parts[j]
|
|
case 1:
|
|
parts[j] = "00" + parts[j]
|
|
}
|
|
j--
|
|
}
|
|
parts[j] = strconv.Itoa(int(b.Int64()))
|
|
return sign + strings.Join(parts[j:], ",")
|
|
}
|