正则表达式公式不在HTML标记内

Question

My regex pattern works for all text not contained within HTML tags: 我的正则表达式模式适用于HTML标记中未包含的所有文本：

((?<!-)\btest(?!-)\b)(?=[^<>]*(?:<\w|$))

In the example below I need it to find both instances of 'test' in these two strings: 在下面的示例中，我需要它在这两个字符串中找到“ test”的两个实例：

vdsv ds test dsv sdlvk 
<b>dsjn vkjsd test sv</b>

Answer 1

In .NET, you may leverage an infinite width lookbehind: 在.NET中，您可以在后面使用无限宽度：

\b(?<!-)test\b(?<!<[^<>]*)(?!-|[^<>]*>)

In code: 在代码中：

var pattern = @"\b(?<!-)test\b(?<!<[^<>]*)(?!-|[^<>]*>)";

Details 细节

\\b - word boundary \\b单词边界
(?<!-) - a negative lookbehind that fails the match if there is a - immediately to the left of the current location (?<!-) -如果在当前位置的左侧紧跟着-则负向后搜索将使匹配失败
test - word test test -单词test
\\b - word boundary \\b单词边界
(?<!<[^<>]*) - a negative lookbehind that fails the match if there is a < and any 0 or more chars other than < and > immediately to the left of the current location (?<!<[^<>]*) -如果在当前位置的左边有一个<以及除<和>以外的0个或多个字符，匹配失败将失败。
(?!-|[^<>]*>) - a negative lookahead that fails the match if there is a - or any 0+ chars other than < and > followed with a > immediately to the right of the current location. (?!-|[^<>]*>) -失败的匹配，如果有一个负先行-或比其他任何0+字符<和>遵循的>立即到当前位置的右侧。