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package main
import (
"errors"
"regexp"
"time"
)
type Entry struct {
Id int
Date time.Time
From *Time
To *Time
Tag *string
Comment string
}
type Date string
type Time string
var timeMatch = regexp.MustCompile("\\d\\d:\\d\\d")
var dateMatch = regexp.MustCompile("\\d\\d\\d\\d-\\d\\d-\\d\\d")
var (
ErrInvalidTime = errors.New("Invalid time string")
ErrInvalidDate = errors.New("Invalid date string")
)
func TimeFromStd(time time.Time) Time {
return Time(time.Format("15:04"))
}
func TimeFromString(str string) (*Time, error) {
if str == "" {
return nil, nil
}
matched := timeMatch.MatchString(str)
if !matched {
return nil, ErrInvalidTime
}
time := Time(str)
return &time, nil
}
func DateFromStd(time time.Time) Date {
return Date(time.Format("2006-01-02"))
}
func DateFromString(str string) (*Date, error) {
if str == "" {
return nil, nil
}
matched := dateMatch.MatchString(str)
if !matched {
return nil, ErrInvalidTime
}
date := Date(str)
return &date, nil
}
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