435c0d9fc8
This PR switches the Nomad repository from using govendor to Go modules for managing dependencies. Aspects of the Nomad workflow remain pretty much the same. The usual Makefile targets should continue to work as they always did. The API submodule simply defers to the parent Nomad version on the repository, keeping the semantics of API versioning that currently exists.
117 lines
2.4 KiB
Go
117 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:], ",")
|
|
}
|