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// Copyright 2021 The Hugo Authors. All rights reserved.
//
// Licensed 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 htime
import (
"strings"
"time"
"github.com/spf13/cast"
toml "github.com/pelletier/go-toml/v2"
"github.com/gohugoio/locales"
)
var (
longDayNames = []string{
"Sunday",
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
}
shortDayNames = []string{
"Sun",
"Mon",
"Tue",
"Wed",
"Thu",
"Fri",
"Sat",
}
shortMonthNames = []string{
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec",
}
longMonthNames = []string{
"January",
"February",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December",
}
)
func NewTimeFormatter(ltr locales.Translator) TimeFormatter {
if ltr == nil {
panic("must provide a locales.Translator")
}
return TimeFormatter{
ltr: ltr,
}
}
// TimeFormatter is locale aware.
type TimeFormatter struct {
ltr locales.Translator
}
func (f TimeFormatter) Format(t time.Time, layout string) string {
if layout == "" {
return ""
}
if layout[0] == ':' {
// It may be one of Hugo's custom layouts.
switch strings.ToLower(layout[1:]) {
case "date_full":
return f.ltr.FmtDateFull(t)
case "date_long":
return f.ltr.FmtDateLong(t)
case "date_medium":
return f.ltr.FmtDateMedium(t)
case "date_short":
return f.ltr.FmtDateShort(t)
case "time_full":
return f.ltr.FmtTimeFull(t)
case "time_long":
return f.ltr.FmtTimeLong(t)
case "time_medium":
return f.ltr.FmtTimeMedium(t)
case "time_short":
return f.ltr.FmtTimeShort(t)
}
}
s := t.Format(layout)
monthIdx := t.Month() - 1 // Month() starts at 1.
dayIdx := t.Weekday()
s = strings.ReplaceAll(s, longMonthNames[monthIdx], f.ltr.MonthWide(t.Month()))
if !strings.Contains(s, f.ltr.MonthWide(t.Month())) {
s = strings.ReplaceAll(s, shortMonthNames[monthIdx], f.ltr.MonthAbbreviated(t.Month()))
}
s = strings.ReplaceAll(s, longDayNames[dayIdx], f.ltr.WeekdayWide(t.Weekday()))
if !strings.Contains(s, f.ltr.WeekdayWide(t.Weekday())) {
s = strings.ReplaceAll(s, shortDayNames[dayIdx], f.ltr.WeekdayAbbreviated(t.Weekday()))
}
return s
}
func ToTimeInDefaultLocationE(i any, location *time.Location) (tim time.Time, err error) {
switch vv := i.(type) {
case toml.LocalDate:
return vv.AsTime(location), nil
case toml.LocalDateTime:
return vv.AsTime(location), nil
// issue #8895
// datetimes parsed by `go-toml` have empty zone name
// convert back them into string and use `cast`
case time.Time:
i = vv.Format(time.RFC3339)
}
return cast.ToTimeInDefaultLocationE(i, location)
}
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