mirror of
https://github.com/charlienet/go-mixed.git
synced 2025-07-18 00:22:41 +08:00
139 lines
2.7 KiB
Go
139 lines
2.7 KiB
Go
package json
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import (
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"bytes"
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"log"
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"regexp"
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"strconv"
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"strings"
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"unicode"
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"github.com/charlienet/go-mixed/bytesconv"
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)
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// 下划线
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type SnakeCase struct {
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Value any
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}
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func (c SnakeCase) MarshalJSON() ([]byte, error) {
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var keyMatchRegex = regexp.MustCompile(`\"(\w+)\":`)
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var wordBarrierRegex = regexp.MustCompile(`(\w)([A-Z])`)
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marshalled, err := Marshal(c.Value)
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converted := keyMatchRegex.ReplaceAllFunc(
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marshalled,
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func(match []byte) []byte {
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return bytes.ToLower(wordBarrierRegex.ReplaceAll(
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match,
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bytesconv.StringToBytes(`${1}_${2}`),
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))
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},
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)
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return converted, err
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}
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// 驼峰
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type CamelCase struct {
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Value any
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}
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func (c CamelCase) MarshalJSON() ([]byte, error) {
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var keyMatchRegex = regexp.MustCompile(`\"(\w+)\":`)
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marshalled, err := Marshal(c.Value)
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converted := keyMatchRegex.ReplaceAllFunc(
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marshalled,
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func(match []byte) []byte {
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matchStr := bytesconv.BytesToString(match)
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key := matchStr[1 : len(matchStr)-2]
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resKey := Lcfirst(Case2Camel(key))
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return bytesconv.StringToBytes(`"` + resKey + `":`)
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},
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)
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return converted, err
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}
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// 驼峰式写法转为下划线写法
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func Camel2Case(name string) string {
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buffer := NewBuffer()
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for i, r := range name {
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if unicode.IsUpper(r) {
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if i != 0 {
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buffer.Append('_')
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}
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buffer.Append(unicode.ToLower(r))
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} else {
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buffer.Append(r)
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}
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}
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return buffer.String()
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}
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// 下划线写法转为驼峰写法
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func Case2Camel(name string) string {
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name = strings.Replace(name, "_", " ", -1)
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// name = strings.Title(name)
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return strings.Replace(name, " ", "", -1)
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}
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func Case2CamelBytes(name []byte) []byte {
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ret := Case2Camel(string(name))
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return bytesconv.StringToBytes(ret)
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}
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// 首字母大写
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func Ucfirst(str string) string {
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for i, v := range str {
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return string(unicode.ToUpper(v)) + str[i+1:]
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}
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return ""
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}
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// 首字母小写
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func Lcfirst(str string) string {
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for i, v := range str {
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return string(unicode.ToLower(v)) + str[i+1:]
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}
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return ""
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}
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// 内嵌bytes.Buffer，支持连写
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type Buffer struct {
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*bytes.Buffer
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}
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func NewBuffer() *Buffer {
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return &Buffer{Buffer: new(bytes.Buffer)}
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}
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func (b *Buffer) Append(i any) *Buffer {
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switch val := i.(type) {
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case int:
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b.append(strconv.Itoa(val))
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case int64:
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b.append(strconv.FormatInt(val, 10))
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case uint:
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b.append(strconv.FormatUint(uint64(val), 10))
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case uint64:
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b.append(strconv.FormatUint(val, 10))
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case string:
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b.append(val)
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case []byte:
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b.Write(val)
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case rune:
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b.WriteRune(val)
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}
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return b
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}
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func (b *Buffer) append(s string) *Buffer {
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defer func() {
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if err := recover(); err != nil {
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log.Println("*****内存不够了!******")
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}
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}()
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b.WriteString(s)
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return b
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}
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