xigang

const (
	regular = "^(1[3-8][0-9]|14[57]|15[0-35-9]|18[07-9])\\d{8}$"
)

func Validate(mobileNum string) bool {
	reg := regexp.MustCompile(regular)
	return reg.MatchString(mobileNum)
}

xigang

func MD5(s string) string {
	h := md5.New()
	h.Write([]byte(s))
	return hex.EncodeToString(h.Sum(nil))
}

func TwiceMD5(s string) string {
	return MD5(MD5(s))
}

xigang

import "regexp"

// Basic regular expressions for validating strings
const (
	Email          string = "^(((([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+(\\.([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.)+(([a-zA-Z]|[\\

xigang

// Contains check if the string contains the substring.
func Contains(str, substring string) bool {
	return strings.Contains(str, substring)
}

// Matches check if string matches the pattern (pattern is regular expression)
// In case of error return false
func Matches(str, pattern string) bool {
	match, _ := regexp.MatchString(pattern, str)
	return match

xigang

// Abs returns absolute value of number
func Abs(value float64) float64 {
	return value * Sign(value)
}

// Sign returns signum of number: 1 in case of value > 0, -1 in case of value < 0, 0 otherwise
func Sign(value float64) float64 {
	if value > 0 {
		return 1
	} else if value < 0 {

xigang

package main

import (
	"flag"
	"fmt"
	"log"

	uuid "github.com/nu7hatch/gouuid"
)

xigang

package main

import (
	"encoding/json"
	"fmt"
	"io"
	"log"
	"strings"
)

xigang

package main

import (
	"encoding/json"
	"fmt"
	"os"
)

type ColorGroup struct {
	ID     int

xigang

package main

import (
	"log"
	"os"
	"text/template"
)

func main() {
	// Define a template.

xigang

package main

import "fmt"

func VersionOrdinal(version string) string {
	// ISO/IEC 14651:2011
	const maxByte = 1<<8 - 1
	vo := make([]byte, 0, len(version)+8)
	j := -1
	for i := 0; i < len(version); i++ {