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crazy-max_diun/vendor/github.com/dromara/carbon/v2/parser.go

105 lines
2.9 KiB
Go

package carbon
import (
"strconv"
"time"
)
// Parse parses a standard time string as a Carbon instance.
// 将标准格式时间字符串解析成 Carbon 实例
func (c Carbon) Parse(value string, timezone ...string) Carbon {
if len(value) == 0 {
c.Error = invalidValueError(value)
return c
}
if len(timezone) > 0 {
c.loc, c.Error = getLocationByTimezone(timezone[0])
}
switch value {
case "now":
return c.Now(timezone...)
case "yesterday":
return c.Yesterday(timezone...)
case "tomorrow":
return c.Tomorrow(timezone...)
}
for _, layout := range layouts {
t, err := time.ParseInLocation(layout, value, c.loc)
if err == nil {
c.time = t
return c
}
}
c.Error = invalidValueError(value)
return c
}
// Parse parses a standard time string as a Carbon instance.
// 将标准时间字符串解析成 Carbon 实例
func Parse(value string, timezone ...string) Carbon {
return NewCarbon().Parse(value, timezone...)
}
// ParseByFormat parses a time string as a Carbon instance by format.
// 通过格式模板将时间字符串解析成 Carbon 实例
func (c Carbon) ParseByFormat(value, format string, timezone ...string) Carbon {
carbon := c.ParseByLayout(value, format2layout(format), timezone...)
if carbon.Error != nil {
carbon.Error = invalidFormatError(value, format)
}
return carbon
}
// ParseByFormat parses a time string as a Carbon instance by format.
// 通过格式模板将时间字符串解析成 Carbon 实例
func ParseByFormat(value, format string, timezone ...string) Carbon {
return NewCarbon().ParseByFormat(value, format, timezone...)
}
// ParseByLayout parses a time string as a Carbon instance by layout.
// 通过布局模板将时间字符串解析成 Carbon 实例
func (c Carbon) ParseByLayout(value, layout string, timezone ...string) Carbon {
if len(value) == 0 {
c.Error = invalidValueError(value)
return c
}
if len(timezone) > 0 {
c.loc, c.Error = getLocationByTimezone(timezone[0])
}
if c.Error != nil {
return c
}
if len(layout) == 0 {
layout = defaultLayout
}
if layout == "timestamp" {
timestamp, _ := strconv.ParseInt(value, 10, 64)
return c.CreateFromTimestamp(timestamp)
}
if layout == "timestampMilli" {
timestamp, _ := strconv.ParseInt(value, 10, 64)
return c.CreateFromTimestampMilli(timestamp)
}
if layout == "timestampMicro" {
timestamp, _ := strconv.ParseInt(value, 10, 64)
return c.CreateFromTimestampMicro(timestamp)
}
if layout == "timestampNano" {
timestamp, _ := strconv.ParseInt(value, 10, 64)
return c.CreateFromTimestampNano(timestamp)
}
tt, err := time.ParseInLocation(layout, value, c.loc)
if err != nil {
c.Error = invalidLayoutError(value, layout)
return c
}
c.time = tt
return c
}
// ParseByLayout parses a time string as a Carbon instance by layout.
// 通过布局模板将时间字符串解析成 Carbon 实例
func ParseByLayout(value, layout string, timezone ...string) Carbon {
return NewCarbon().ParseByLayout(value, layout, timezone...)
}