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[英]Works in Chrome, but breaks in Safari: Invalid regular expression: invalid group specifier name /(?<=\/)([^#]+)(?=#*)/
[英]This regular expression breaks on safari but works in Google Chrome, how do I make it work in both
我有一個正則表達式:
var regex = /(layout)(^|\s*)((?<!=)=(?!=))(^|\s*)/;
這適用於 Google Chrome,但不適用於 Safari,也不適用於 Internet Explorer。 在 Safari 上,錯誤是:
"Invalid regular expression: invalid group specifier name"
請問我該如何解決這個問題?
更新我有一個 xml 輸入,我在將其提供給 xml 解析器之前對其進行了一些檢查。 其中一項檢查是我使用字符串解析來提取包含文件名的布局名稱。
我嘗試識別“布局”屬性上的空格並清理它,例如
<Container
width="match_parent"
height="wrap_content">
<include
width="20px"
height="30px"
layout = "subcontent.xml"
/>
</Container>
將更改為
<Container
width="match_parent"
height="wrap_content">
<include
width="20px"
height="30px"
layout="subcontent.xml"
/>
</Container>
我使用 String.replace 執行此操作,然后提取包含的文件名並從存儲中加載它並將其排隊以進行解析。
所以想:
let check = 'layout=';
//change layout[space....]=[space.....] to layout=
let regex = /(layout)(^|\s*)((?<!=)=(?!=))(^|\s*)/;
xml = xml.replace(regex, check);
我希望它現在更清楚。
利用
let check = 'layout='; let xml = "change layout = "; let regex = /layout\s*=(?!=)\s*/g; xml = xml.replace(regex, check); console.log(xml)
請參閱正則表達式證明。
解釋
"layout" - matches the characters layout literally (case sensitive)
"\s*" matches any whitespace character between zero and unlimited times, as many times as possible, giving back as needed (greedy)
"=" - matches the character = with index 6110 (3D16 or 758) literally
- Negative Lookahead "(?!=)":
Assert that the Regex below does not match
"=" - matches the character = with index 6110 (3D16 or 758) literally
"\s*" - matches any whitespace character between zero and unlimited times, as many times as possible, giving back as needed (greedy)
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