111 lines
1.7 KiB
Go
111 lines
1.7 KiB
Go
package jsonpack
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import (
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"math"
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"regexp"
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"strings"
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"github.com/samber/lo"
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)
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type AstToken struct {
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category string // array null,
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index int
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child []AstToken
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}
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var baseCharacters = []rune("0123456789abcdefghijklmnopqrstuvwxyz")
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var baseCharactersMap = lo.Reduce[rune, map[rune]int](baseCharacters, func(carry map[rune]int, v rune, i int) map[rune]int {
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carry[v] = i
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return carry
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}, make(map[rune]int))
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var astEncodeReplace = map[string]string{
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" ": "+",
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"+": "%2B",
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"|": "%7C",
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"^": "%5E",
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"%": "%25",
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}
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var astDecodeReplace = map[string]string{
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"+": " ",
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"%2B": "+",
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"%7C": "|",
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"%5E": "^",
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"%25": "%",
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}
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// 字符串编码
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func astEncode(str string) string {
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reg := regexp.MustCompile(`[\+ \|\^\%]`)
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return reg.ReplaceAllStringFunc(str, func(s string) string {
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return astEncodeReplace[s]
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})
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}
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// 字符串界面
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func astDecode(str string) string {
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reg := regexp.MustCompile(`\+|%2B|%7C|%5E|%25`)
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return reg.ReplaceAllStringFunc(str, func(s string) string {
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return astDecodeReplace[s]
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})
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}
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// 10进制转36进制
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func astBase10to36(num int) string {
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if num == 0 {
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return "0"
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}
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isSubFlag := num < 0
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if isSubFlag {
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num = num * -1
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}
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str := ""
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for num != 0 {
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p := num % 36
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str = string(baseCharacters[p]) + str
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num = num / 36
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}
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if isSubFlag {
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return "-" + str
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}
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return str
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}
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// 36进制转10进制
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func astBase36to10(str string) int {
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str = strings.ToLower(str)
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isSubFlag := str[0:1] == "-"
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if isSubFlag {
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str = str[1:]
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}
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v := 0.0
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length := len(str)
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for i := 0; i < length; i++ {
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s := rune(str[i])
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index := baseCharactersMap[s]
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v += float64(index) * math.Pow(float64(36), float64(length-1-i)) // 倒序
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}
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if isSubFlag {
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return -int(v)
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}
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return int(v)
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}
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