Regular Expression description

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Original
Http://www.blogjava.net/zhugf000/archive/2005/12/12/23414.html
Thank you for your efforts!
The article is a regular expression in Java, which is very detailed. In fact, many things can also be used in DOTNET's regular expressions. With the help of DOTNET, a lot of content in the article has not been broken down for introduction. So after reading this introduction, I still have a lot of benefits.

Directory

Regular Expressions
Matching Mode
Character subset
Line terminator
Group and reference
Unicode support

Regular expression syntax reference

1. Character
2. Logical operators
3. Back Reference
4. Boundary Element character
5. Repeated indicator
6. Character subset
7. Pre-defined subset (metacharacters)
8. Extended subset (metacharacters)
9. Extended Chinese subset (metacharacters)
10. POSIX character subset (ASCII only)
11. Unicode block and Classification

Replacement expression
Replacement expression

1. Special characters
2. Custom replacement table