Regex 使用lookahead反转正则表达式以查找匹配的字符串
我有这个正则表达式(由其他人提供),我需要使用匹配的字符串进行测试Regex 使用lookahead反转正则表达式以查找匹配的字符串,regex,Regex,我有这个正则表达式(由其他人提供),我需要使用匹配的字符串进行测试 "(?<=[H|h]at [\'|\""]).*?(?=[\'|\""])" (?其中包括: 而实际匹配的文本是分隔符字符之间的任何字符((“|“|”、“|\\|”)) 值得一提的是,如果您有机会在您的代码库中重写此代码,现在可能是一个合适的时机。:)让我们来分析一下 首先,看起来我们正在努力确保单词“hat”或“hat”后面有一个单独的引语出现在我们匹配的任何东西之前 (?我注意到的第一件事是,正则表达式显然是由不
"(?<=[H|h]at [\'|\""]).*?(?=[\'|\""])"
(?其中包括:
而实际匹配的文本是分隔符字符之间的任何字符((“|“|”、“|\\|”)
)
值得一提的是,如果您有机会在您的代码库中重写此代码,现在可能是一个合适的时机。:)让我们来分析一下
首先,看起来我们正在努力确保单词“hat”或“hat”后面有一个单独的引语出现在我们匹配的任何东西之前
(?我注意到的第一件事是,正则表达式显然是由不知道自己在做什么的人编写的,因此我建议将它扔掉,自己编写。
Hat 'pretty much anything in apostrophes' hat 'pretty much anything in apostrophes' |at 'pretty much anything in apostrophes' Hat |pretty much anything in pipes| hat |pretty much anything in pipes| |at |pretty much anything in pipes| Hat "pretty much anything in double quotes" hat "pretty much anything in double quotes" |at "pretty much anything in double quotes" Hat ""pretty much anything in double double quotes"" hat ""pretty much anything in double double quotes"" |at ""pretty much anything in double double quotes"" Hat "and pretty much anything in any combination of those| hat |and pretty much anything in any combination of those' |at ""and pretty much anything in any combination of those"
[Hh]at\s['"]
(?=['"])