Question

我正在尝试捕获看起来像这样的行，例如：

2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process'

我使用以下正则表达式模式：

\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} \[.*\]\[.*\] Executing Process '.*'

然而，该线未被捕获。我注意到它一直工作到单引号。但如果我添加单引号，它就会失败。我认为可能有两种不同类型的单引号，但我复制并粘贴了所使用的引用，但它仍然没有用。这两个引号也是由相同的代码生成的，因此一个引号应该与另一个引用相同。

编辑：
这是正则表达式代码。

regexPattern := `\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} \[.*\]\[.*\] Executing Process '.*'`

log = highlight(log, regexPattern)
...
func highlight(log, pattern string) string {
    regex := regexp.MustCompile(
    matches := regex.FindAllString(log, -1)

编辑：
我想到了。我回来的日志是HTML转义的，所以单引号实际上是＃39。这阻止了与单引号的匹配

Answer 1

尝试使用此工作示例代码（使用&#39）：

package main

import "fmt"
import "regexp"
import "time"

var rgx = regexp.MustCompile(`(\d){4}\/(\d){2}\/(\d){2} (\d){2}:(\d){2}:(\d){2} (\[\w*\]){2} ([\w ])+ &#39.*&#39`)

func main() {
    s := time.Now().UTC().Format("2006/01/02 15:04:05") + ` [DEV][INFO] Executing Process &#39Some process&#39 `
    r := rgx.FindAllString(s, -1)
    fmt.Println(r)
}

输出：

[2016/08/11 18:13:41 [DEV][INFO] Executing Process &#39Some process&#39]

尝试使用此工作示例代码（使用'）：

package main

import "fmt"
import "regexp"
import "time"

var rgx = regexp.MustCompile(`(\d){4}\/(\d){2}\/(\d){2} (\d){2}:(\d){2}:(\d){2} (\[\w*\]){2} ([\w ])+ '.*'`)

func main() {
    s := time.Now().UTC().Format("2006/01/02 15:04:05") + ` [DEV][INFO] Executing Process 'Some process' `
    r := rgx.FindAllString(s, -1)
    fmt.Println(r) //

    s = `2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process'`
    r = rgx.FindAllString(s, -1)
    fmt.Println(r) // 2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process'
    fmt.Println()

    s = ` dfgfsdfg sdf gsdf gsdf 2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process' 2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process'`
    r = rgx.FindAllString(s, -1)
    fmt.Println(r) // [2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process' 2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process']
    fmt.Println()

    s = `aaaaaaaaaaaaaaaaa asdfsf 'asdfasdf'`
    r = rgx.FindAllString(s, -1)
    fmt.Println(r) // []
}

输出;

[2016/08/11 18:09:01 [DEV][INFO] Executing Process 'Some process']
[2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process']

[2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process' 2016/07/27 21:37:50 [DEV][INFO] Executing Process 'Some process']

[]

Answer 2

请尝试这个稍加修改的正则表达式。

(\d){4}\/(\d){2}\/(\d){2} (\d){2}:(\d){2}:(\d){2} (\[\w*\]){2} ([\w ])+ '.*'

我希望它有所帮助！如果您有任何疑问，请询问！

无法在正则表达式中捕获单引号

2 个答案: