正則表達式匹配類似單詞后的字符串

Question

我試圖解析下面的日志文件; 但是，在所有“Step = Number”之后，我有點想弄清楚如何匹配結果。

Step = 10，Step = 11，Step = 12，Step = 13，Step = 14，Step = 15，Step = 16，Step = 18，Step = 17，Step = 20，Step = 19，Step = 25，Step = 21，Step = 26，Step = 28，Step = 24，Step = 22，Step = 23，Step = 27，Step = 30，Step = 29，Step = 35，Step = 34，Step = 32，Step = 31， Step = 38，Step = 37，Step = 36，Step = 50，Step = 45，Step = 48，Step = 41，Step = 52，Step = 42，Step = 57，Step = 65，Step = 61，Step = 62，Step = 64，Step = 54，Step = 53，Step = 59，Step = 63，Step = 84，Step = 71，SelectedAuthenticationIdentityStores = paddedvalue，NetworkDeviceName = exampledevice，NetworkDeviceGroups = Update Source：All Sources：ACS，NetworkDeviceGroups =設備類型：所有設備類型：無線，NetworkDeviceGroups =位置：所有位置，ServiceSelectionMatchedRule = Rule-1，IdentityPolicyMatchedRule =默認

在以下組合之后我考慮匹配：\\ d \\ s \\，\\ s

理想的目標是匹配以下內容：

SelectedAuthenticationIdentityStores = paddedvalue，NetworkDeviceName = exampledevice，NetworkDeviceGroups = Update Source：All Sources：ACS，NetworkDeviceGroups = Device Type：All Device Types：Wireless，NetworkDeviceGroups = Location：All Locations，ServiceSelectionMatchedRule = Rule-1，IdentityPolicyMatchedRule = Default

我嘗試了下面的正則表達式： \\d\\s\\\\,\\s(.*)但是匹配了第一步后的所有步驟=數字（步驟= 10）

Answer 1

您可以在現有模式的開頭使用另一個。*來貪婪地使用除最后一個匹配之外的所有匹配：

.*\d\s,\s(.*)

演示： https ： //regex101.com/r/Oc7jUK/1

或者，您可以使用正向lookbehind模式來確保匹配前面有\\d\\s,\\s和負前瞻模式，以確保后面不再有\\d\\s,\\s ：

(?<=\d\s,\s)(?!.*\d\s,\s).*

演示： https ： //regex101.com/r/Oc7jUK/2

Answer 2

為什么不使用與SelectedAuthenticationIdentityStores類的所有匹配的正則表達式，如SelectedAuthenticationIdentityStores.*或\\w{5,}.*

 const regex = /SelectedAuthenticationIdentityStores.*/g; const text = `Step=10 , Step=11 , Step=12 , Step=13 , Step=14 , Step=15 , Step=16 , Step=18 , Step=17 , Step=20 , Step=19 , Step=25 , Step=21 , Step=26 , Step=28 , Step=24 , Step=22 , Step=23 , Step=27 , Step=30 , Step=29 , Step=35 , Step=34 , Step=32 , Step=31 , Step=38 , Step=37 , Step=36 , Step=50 , Step=45 , Step=48 , Step=41 , Step=52 , Step=42 , Step=57 , Step=65 , Step=61 , Step=62 , Step=64 , Step=54 , Step=53 , Step=59 , Step=63 , Step=84 , Step=71 , SelectedAuthenticationIdentityStores=paddedvalue, NetworkDeviceName=exampledevice, NetworkDeviceGroups=Update Source:All Sources:ACS, NetworkDeviceGroups=Device Type:All Device Types:Wireless, NetworkDeviceGroups=Location:All Locations, ServiceSelectionMatchedRule=Rule-1, IdentityPolicyMatchedRule=Default` console.log(text.match(regex))