Golang implementing PHP's Version_compare function

This is a creation in Article, where the information may have evolved or changed.

PHP Version_compare is a version number string that compares two "php normalization".

mixed version_compare ( string $version1 , string $version2 [, string $operator ] )

Use Golang to implement some of the commonly used features.

Package Utilimport "strings"//This function compares whether two version numbers are equal, is greater than or less than the relationship//return value: 0 means V1 is equal to V2, 1 means V1 is greater than v2;2 means V1 is less than V2func Compare (v1, v2 string) int {//replace some common version symbols Replacemap: = map[string]string{"V": "", "V": "", "-": ".",}//keywords: = {"Alpha,bet A,rc,p "} for K, V: = range Replacemap {if strings. Contains (v1, k) {strings. Replace (v1, K, V,-1)} if strings. Contains (v2, k) {strings. Replace (v2, K, V,-1)}} ver1: = Strings.    Split (v1, ".") Ver2: = Strings.    Split (v2, ".") Find out which V1 and V2 are the shortest var shorter int if Len (ver1) > Len (ver2) {shorter = Len (ver2)} else {shorter = Len (ver1)}//Loop compare for I: = 0; i < shorter;                    i++ {if ver1[i] = = Ver2[i] {if shorter-1 = = i {if len (ver1) = = Len (ver2) { Return 0} else {//@todo check for keywords if len (ver1) &G T   Len (ver2) {return 1                 } else {return 2}}} else If ver1[i] > Ver2[i] {return 1} else {return 2}} Return-1}func Version            Compare (v1, v2, operator string) bool {com: = Compare (v1,v2) switch operator {case "= =": if com = = 0 {        return true} case "<": if com = = 2 {return true} case ">": if com = = 1 {return true} case "<=": if com = = 0 | | com = = 2 {return true} case ">=": if com = = 0 | | com = = 1{return True}} return False}

Test Unit:

package utilimport (    "testing")var (    v1 = "2.0.1"    v1_1 = "2.0.1.1"    v2 = "2.1.1")// 该函数比较两个版本号是否相等，是否大于或小于的关系// 返回值：0表示v1与v2相等；1表示v1大于v2；2表示v1小于v2func TestCompare(t *testing.T) {    if 0 != Compare(v1,v1) {        t.Errorf("v1 %s == v1 %s ",v1,v1)    }    if 1 != Compare(v2,v1) {        t.Errorf("v2 %s > v1 %s",v2,v1)    }    if 2 != Compare(v1,v2) {        t.Errorf("v1 %s < v2 %s",v1,v2)    }}func TestVersionCompare(t *testing.T)  {    if !VersionCompare(v1,v1_1,"<") {        t.Errorf("v1 %s < v1_1 %s ",v1,v1_1)    }    if !VersionCompare(v2,v1_1,">") {        t.Errorf("v2 %s < v1_1 %s ",v2,v1_1)    }    if !VersionCompare(v2,v1,">=") {        t.Errorf("v2 %s >= v1 %s ",v2,v1)    }    if !VersionCompare(v1,v2,"<=") {        t.Errorf("v1 %s >= v2 %s ",v1,v2)    }    if !VersionCompare(v1,v1,"==") {        t.Errorf("v1 %s == v1 %s ",v1,v1)    }}

The code simply implements the "<,>,<=,>=,==".