# README
regex_go
golang与Per5和.net兼容的正则处理包
比较regexp和regex_go
| Category | regexp | regex_go |
|---|---|---|
| Catastrophic backtracking possible | no, constant execution time guarantees | yes, if your pattern is at risk you can use the re.MatchTimeout field |
| Python-style capture groups (?Pre) | yes | no (yes in RE2 compat mode) |
| .NET-style capture groups (?re) or (?'name're) | no | yes |
| comments (?#comment) | no | yes |
| branch numbering reset (?|a|b) | no | no |
| possessive match (?>re) | no | yes |
| positive lookahead (?=re) | no | yes |
| negative lookahead (?!re) | no | yes |
| positive lookbehind (?<=re) | no | yes |
| negative lookbehind (? | no | yes |
| back reference \1 | no | yes |
| named back reference \k'name' | no | yes |
| named ascii character class [[:foo:]] | yes | no (yes in RE2 compat mode) |
| conditionals (?(expr)yes|no) | no | yes |