| Description: | A drop-in replacement for the re module.
It uses RE2 under the hood, of course, so various PCRE features (e.g.
backreferences, look-around assertions) are not supported. See
https://github.com/google/re2/wiki/Syntax for the canonical reference, but
known syntactic ”gotchas” relative to Python are:
• PCRE supports \Z and \z; RE2 supports \z; Python supports \z,
but calls it \Z. You must rewrite \Z to \z in pattern strings.
Known differences between this module’s API and the re module’s API:
• The error class does not provide any error information as attributes.
• The Options class replaces the re module’s flags with RE2’s options as
gettable/settable properties. Please see re2.h for their documentation.
• The pattern string and the input string do not have to be the same type.
Any str will be encoded to UTF-8.
• The pattern string cannot be str if the options specify Latin-1 encoding. |
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