I trying to implement lexer and trying to create regex what will match anything but not the following:
我试图实现lexer并尝试创建regex，它将匹配任何内容，但不匹配以下内容:
- <
- <
- {{
- { {
- {%
- { %
There is that i'm trying:
我正在尝试:
[^(<|{{|{%)]+
But it also does not watch ant single "{" and "%" symbols.
但它也不关注ant的单个“{”和“%”符号。
It it possible to do with regex?
可以用regex吗?
Input: "foo {{ bar < baz {%" Output: "foo ", " bar ", "baz "
输入:“foo {bar < baz{%”输出:“foo”，“bar”，“baz”
2 个解决方案
#1
2
You can use lookaround based regex:
你可以使用lookaround的regex:
(?<=\s|^)(?!{[{%]|<)\S+
(?!{[{%]) is negative lookahead to match any non-space text that is not {{ or {%.
(?!{[{%])为负值，以匹配非{{或{%}的非空格文本。
RegEx演示
#2
1
I think you are writing a templating language and you may want to split on these characters, right? If so, then you split on the positive regex: (<|{{|{%)
我认为你正在编写模板语言你可能想要对这些字符进行分割，对吧?如果是，那么您将在正的regex:(<|{|{%)上进行分割
Use http://www.regexr.com/ to learn more about regexes.
使用http://www.regexr.com/了解关于regex的更多信息。
#1
2
You can use lookaround based regex:
你可以使用lookaround的regex:
(?<=\s|^)(?!{[{%]|<)\S+
(?!{[{%]) is negative lookahead to match any non-space text that is not {{ or {%.
(?!{[{%])为负值，以匹配非{{或{%}的非空格文本。
RegEx演示
#2
1
I think you are writing a templating language and you may want to split on these characters, right? If so, then you split on the positive regex: (<|{{|{%)
我认为你正在编写模板语言你可能想要对这些字符进行分割，对吧?如果是，那么您将在正的regex:(<|{|{%)上进行分割
Use http://www.regexr.com/ to learn more about regexes.
使用http://www.regexr.com/了解关于regex的更多信息。