I need a regex (will be used in ZF2 routing, I believe it uses the preg_match of php) that matches anything except a specific string.
我需要一个正则表达式（将在ZF2路由中使用，我相信它使用php的preg_match）匹配除特定字符串之外的任何内容。
For example: I need to match anything except "red", "green" or "blue".
例如：我需要匹配除“红色”，“绿色”或“蓝色”之外的任何内容。
I currently have the regex:
我目前有正则表达式：
^(?!red|green|blue).*$
test -> match (correct)
testred -> match (correct)
red -> doesn't match (correct)
redtest -> doesn't match (incorrect)
In the last case, the regex is not behaving like I want. It should match "redtest" because "redtest" is not ("red", "green" or "blue").
在最后一种情况下，正则表达式的行为并不像我想要的那样。它应匹配“redtest”，因为“redtest”不是（“red”，“green”或“blue”）。
Any ideas of how to fix the regex?
有关如何修复正则表达式的任何想法？
3 个解决方案
#1
11
You can include the end of string anchor in the lookahead
您可以在前瞻中包含字符串锚点的结尾
^(?!(red|blue|green)$)
#2
2
Perhaps this regex can help you out:
也许这个正则表达式可以帮助你：
^(?!red|green|blue)(.+)|(.+)(?<!red|green|blue)$
Check out this at Rubular.
在Rubular看看这个。
#3
0
Regexp like this includes condition of second block - YOUR_REGEXP, and exclude condition of first block. In this case if your string will contains red, green or blue result always would be false
像这样的正则表达式包括第二个块的条件 - YOUR_REGEXP，并排除第一个块的条件。在这种情况下，如果您的字符串将包含红色，绿色或蓝色结果，则始终为false
'(?si)(?!.*(red|green|blue).*)(.*(YOUR_REGEXP).*)'
#1
11
You can include the end of string anchor in the lookahead
您可以在前瞻中包含字符串锚点的结尾
^(?!(red|blue|green)$)
#2
2
Perhaps this regex can help you out:
也许这个正则表达式可以帮助你：
^(?!red|green|blue)(.+)|(.+)(?<!red|green|blue)$
Check out this at Rubular.
在Rubular看看这个。
#3
0
Regexp like this includes condition of second block - YOUR_REGEXP, and exclude condition of first block. In this case if your string will contains red, green or blue result always would be false
像这样的正则表达式包括第二个块的条件 - YOUR_REGEXP，并排除第一个块的条件。在这种情况下，如果您的字符串将包含红色，绿色或蓝色结果，则始终为false
'(?si)(?!.*(red|green|blue).*)(.*(YOUR_REGEXP).*)'