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util.go
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util.go
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package web
import (
"encoding/json"
"os"
"regexp"
"strconv"
"strings"
)
// if production enviroment
var RELEASE = os.Getenv("RELEASE") == "1"
var (
digestRegexp = regexp.MustCompile("^[0-9]+$")
)
func ValidPhoneNumber(s string) bool {
if s == "" {
return false
}
if s[0] == '+' {
return true
}
return digestRegexp.MatchString(s)
}
func AddIntSet(array []int, d int) []int {
for _, v := range array {
if v == d {
return array
}
}
return append(array, d)
}
func AddInt64Set(array []int64, d int64) []int64 {
for _, v := range array {
if v == d {
return array
}
}
return append(array, d)
}
func IntsRemove(array []int, d int) []int {
var n = len(array)
if n == 0 {
return array
}
var p = -1
for i, v := range array {
if v == d {
p = i
break
}
}
if p < 0 {
return array
}
var prev, next []int
if p == 0 {
next = array[1:]
} else if p >= n-1 {
prev = array[:n-1]
} else {
prev = array[:p]
next = array[p+1:]
}
return append(prev, next...)
}
func Int64sRemove(array []int64, d int64) []int64 {
var n = len(array)
if n == 0 {
return array
}
var out = make([]int64, 0, len(array))
for _, a := range array {
if a != d {
out = append(out, a)
}
}
return out
}
func InStrings(src string, array []string) bool {
for _, s := range array {
if src == s {
return true
}
}
return false
}
func InInt64s(src int64, array []int64) bool {
for _, v := range array {
if src == v {
return true
}
}
return false
}
func CmpInt64s(a, b []int64) int {
for i, av := range a {
if i >= len(b) {
return 1
}
bv := b[i]
if av > bv {
return 1
} else if av < bv {
return -1
}
}
if len(b) > len(a) {
return -1
}
return 0
}
func InInt32s(src int32, array []int32) bool {
for _, v := range array {
if src == v {
return true
}
}
return false
}
func InInts(src int, array []int) bool {
for _, v := range array {
if src == v {
return true
}
}
return false
}
func Int32sToInts(src []int32) []int {
var out []int
for _, v := range src {
out = append(out, int(v))
}
return out
}
func IntsToInt32s(src []int) []int32 {
var out []int32
for _, v := range src {
out = append(out, int32(v))
}
return out
}
func BoolToInt(b bool) int {
if b {
return 1
}
return 0
}
func ToJson(v interface{}) string {
b, _ := json.Marshal(v)
return string(b)
}
func JoinStrings(sl []string) string {
return strings.Join(sl, ",")
}
func JoinInts(il []int) string {
var s string
for _, v := range il {
if len(s) > 0 {
s += ","
}
s += strconv.Itoa(v)
}
return s
}
func ToInts(s string) []int {
vs := strings.Split(s, ",")
var out []int
for _, v := range vs {
id, err := strconv.Atoi(v)
if err == nil {
out = append(out, id)
}
}
return out
}
func JoinInt64s(il []int64) string {
var s string
for _, v := range il {
if len(s) > 0 {
s += ","
}
s += strconv.FormatInt(v, 10)
}
return s
}
// 归纳成统一的语言代码 zh/en/hant
func FormatLanguage(s string) string {
if strings.HasPrefix(s, "zh") && strings.Contains(s, "Hant") {
return "hant"
}
if len(s) > 2 {
s = strings.ToLower(s[:2])
}
return s
}
// 是中国语言
func IsZh(lang string) bool {
return lang == "zh" || lang == "hant"
}
// 返回true, 如果字符串由全数字组成
func IsDigit(s string) bool {
if len(s) == 0 {
return false
}
for _, c := range s {
if c < '0' || c > '9' {
return false
}
}
return true
}
// 返回true, 如果字符串是字母加数字
func IsAlnum(s string) bool {
if len(s) == 0 {
return false
}
for _, c := range s {
if !(c >= '0' && c <= '9' || c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z') {
return false
}
}
return true
}
// 数组转集合
func Int64sToSet(a []int64) map[int64]struct{} {
var out = make(map[int64]struct{}, len(a))
for _, d := range a {
out[d] = struct{}{}
}
return out
}
// 截取字符串
func TruncateString(s string, n int) string {
r := []rune(s)
if len(r) <= n {
return s
}
return string(r[:n]) + "..."
}
// 1.0.0-35
type AppleVersion struct {
Major int
Minor int
Patch int
Build int
}
func ParseAppleVersion(v string) *AppleVersion {
var out = &AppleVersion{}
tup := strings.Split(v, "-")
if len(tup) == 0 {
return out
}
if len(tup) >= 2 {
out.Build, _ = strconv.Atoi(tup[1])
}
fs := strings.Split(tup[0], ".")
fn := len(fs)
if fn > 0 {
out.Major, _ = strconv.Atoi(fs[0])
}
if fn > 1 {
out.Minor, _ = strconv.Atoi(fs[1])
}
if fn > 2 {
out.Patch, _ = strconv.Atoi(fs[2])
}
return out
}
// 比较苹果app_version
func CmpAppleVersion(v1, v2 string) int {
av1 := ParseAppleVersion(v1)
av2 := ParseAppleVersion(v2)
if av1.Major != av2.Major {
return av1.Major - av2.Major
}
if av1.Minor != av2.Minor {
return av1.Minor - av2.Minor
}
if av1.Patch != av2.Patch {
return av1.Patch - av2.Patch
}
if av1.Build != av2.Build {
return av1.Build - av2.Build
}
return 0
}
// 1.0.0
type AndroidVersion struct {
Major int
Minor int
Patch int
}
func ParseAndroidVersion(v string) *AndroidVersion {
var out = &AndroidVersion{}
fs := strings.Split(v, ".")
fn := len(fs)
if fn > 0 {
out.Major, _ = strconv.Atoi(fs[0])
}
if fn > 1 {
out.Minor, _ = strconv.Atoi(fs[1])
}
if fn > 2 {
out.Patch, _ = strconv.Atoi(fs[2])
}
return out
}
// 比较安卓app_version
func CmpAndroidVersion(v1, v2 string) int {
av1 := ParseAndroidVersion(v1)
av2 := ParseAndroidVersion(v2)
if av1.Major != av2.Major {
return av1.Major - av2.Major
}
if av1.Minor != av2.Minor {
return av1.Minor - av2.Minor
}
if av1.Patch != av2.Patch {
return av1.Patch - av2.Patch
}
return 0
}
var VALID_ADCODE_PATTERN = regexp.MustCompile("^[0-9]{6,8}$")
// 粗略检测行政区划编码格式(比如河南: 410000)
func VerifyAdCode(code string) bool {
return VALID_ADCODE_PATTERN.MatchString(code)
}
// 格式化城市行政编码
func FormatCityCode(code string) string {
if len(code) > 4 {
return code[:4] + "00"
}
return code
}