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...

John says "GF" is the one he loves!

IsMatch / IsMatchString

Code Block
package main

import (
    "fmt"
    "github.com/gogf/gf/text/gregex"
)

func main() {
    patternStr := `\d+`
	g.Dump(gregex.IsMatch(patternStr, []byte("hello 2022! hello gf!")))
	g.Dump(gregex.IsMatch(patternStr, nil))
	g.Dump(gregex.IsMatch(patternStr, []byte("hello gf!")))
}

执行后，输出结果为：

Code Block
true
false
false

Match / MatchString

Code Block
package main

import (
    "fmt"
    "github.com/gogf/gf/text/gregex"
)

func main() {
    patternStr := `(\w+)=(\w+)`
	matchStr := "https://goframe.org/pages/viewpage.action?pageId=1114219&searchId=8QC5D1D2E!"
	// This method looks for the first match index
	result, err := gregex.MatchString(patternStr, matchStr)
	g.Dump(result)
	g.Dump(err)
}

执行后，输出结果为

Code Block
[
	    "pageId=1114219",
	    "pageId",
	    "1114219",
]

<nil>

MatchAll / MatchAllString

Code Block
package main

import (
    "fmt"
    "github.com/gogf/gf/text/gregex"
)

func main() {
    patternStr := `(\w+)=(\w+)`
	matchStr := "https://goframe.org/pages/viewpage.action?pageId=1114219&searchId=8QC5D1D2E!"
	result, err := gregex.MatchAllString(patternStr, matchStr)
	g.Dump(result)
	g.Dump(err)
}

执行代码后输出

Code Block
[
	    [
	        "pageId=1114219",
	        "pageId",
	        "1114219",
	    ],
	    [
	        "searchId=8QC5D1D2E",
	        "searchId",
	        "8QC5D1D2E",
	    ],
]

<nil>

Quote

Code Block
package main

import (
    "fmt"
    "github.com/gogf/gf/text/gregex"
)

func main() {
   	result := gregex.Quote(`[1-9]\d+`)
	g.Dump(result)
}

执行后输出

Code Block
"\[1-9\]\\d\+"

Replace / ReplaceString

Code Block
package main

import (
    "fmt"
    "github.com/gogf/gf/text/gregex"
)

func main() {
    var (
		patternStr  = `\d+`
		str         = "hello gf 2020!"
		repStr      = "2021"
		result, err = gregex.Replace(patternStr, []byte(repStr), []byte(str))
	)
	g.Dump(err)
	g.Dump(result)
}

执行后输出

Code Block
<nil>
"hello gf 2021!"

ReplaceFunc / ReplaceStringFunc

Code Block
package main

import (
    "fmt"
    "github.com/gogf/gf/text/gregex"
)

func main() {
    replaceStrMap := map[string]string{
		"2020": "2021",
	}
	// When the regular statement can match multiple results
	// func can be used to further control the value that needs to be modified
	result, err := gregex.ReplaceStringFunc(`\d+`, `hello gf 2018~2020!`, func(b string) string {
		if replaceStr, ok := replaceStrMap[b]; ok {
			return replaceStr
		}
		return b
	})
	g.Dump(result)
	g.Dump(err)

	result, err = gregex.ReplaceStringFunc(`[a-z]*`, "gf@goframe.org", strings.ToUpper)
	g.Dump(result)
	g.Dump(err)
}

执行后输出

Code Block
"hello gf 2018~2021!"
<nil>
"GF@GOFRAME.ORG"
<nil>

ReplaceFuncMatch / ReplaceStringFuncMatch

Code Block
package main

import (
    "fmt"
    "github.com/gogf/gf/text/gregex"
)

func main() {
    var (
		patternStr = `([A-Z])\w+`
		str        = "hello Golang 2018~2021!"
	)
	result, err := gregex.ReplaceStringFuncMatch(patternStr, str, func(match []string) string {
		match[0] = "Gf"
		return match[0]
	})
	g.Dump(result)
	g.Dump(err)
}

执行后输出

Code Block
"hello Gf 2018~2021!"
<nil>

Split

Validate