youtubebeat/vendor/github.com/elastic/beats/libbeat/common/dtfmt/util.go

61 lines
1.4 KiB
Go

// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package dtfmt
import (
"math"
"strconv"
)
func appendUnpadded(bs []byte, i int) []byte {
return strconv.AppendInt(bs, int64(i), 10)
}
func appendPadded(bs []byte, i, sz int) []byte {
if i < 0 {
bs = append(bs, '-')
i = -i
}
if i < 10 {
for ; sz > 1; sz-- {
bs = append(bs, '0')
}
return append(bs, byte(i)+'0')
}
if i < 100 {
for ; sz > 2; sz-- {
bs = append(bs, '0')
}
return strconv.AppendInt(bs, int64(i), 10)
}
digits := 0
if i < 1000 {
digits = 3
} else if i < 10000 {
digits = 4
} else {
digits = int(math.Log10(float64(i))) + 1
}
for ; sz > digits; sz-- {
bs = append(bs, '0')
}
return strconv.AppendInt(bs, int64(i), 10)
}