Daniel Kutenin

CTRE incorrectly cannot find any or two letter quantifier with repeat

3

Does not compile: ```cpp static_assert("\\A((.|QM){1}\\Z)"_ctre.search("QM")); static_assert("\\A((.|(QM)){1}\\Z)"_ctre.search("QM")); ``` Compiles: ```cpp static_assert("\\A((.|QM)\\Z)"_ctre.search("QM")); static_assert("\\A((.|Q){1}\\Z)"_ctre.search("Q")); static_assert("\\A((QM){1}\\Z)"_ctre.search("QM")); static_assert("((.|QM){1}\\Z)"_ctre.search("QM")); static_assert("(\\A(.|QM){1})"_ctre.search("QM")); ``` https://gcc.godbolt.org/z/rfsP6d

URL regexp does not search correctly with the word boundary

2

I was using CTRE for url finding in the text and apparently found that it does not search everything. Examples The original regex was `R"((?(http://www\.|https://www\.|http://|https://)?[a-zA-Z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(/[^\s]*)?/?\b))"`. I tried to simplify a...

Does not compile ```cpp static_assert("(;(?:((A(.|[\\w]Y)){1,2}))?\\Z)"_ctre.search(";AjYAb")); ``` Compiles: ```cpp static_assert("((?:((A(.|[\\w]Y)){1,2}))?\\Z)"_ctre.search("AjYAb")); ``` https://gcc.godbolt.org/z/TEjEbr https://regex101.com/r/oNZ6ri/1

Hi, while fuzzing I found a compile time error reproduces in the following example ```cpp int main() { using namespace ctre::literals; "[^\\w]*"_ctre.search(""); } ``` ``` contrib/compile-time-regular-expressions/include/ctre/evaluation.hpp:412:16: error: constexpr if condition...

Literal matching unknown error

5

Reproducible example ```cpp #undef NDEBUG #include #include /* Explanation: Failed to scan with hyperscan: HS_UNKNOWN_ERROR Version: 5.4.0 */ int on_match(unsigned int id, unsigned long long from, unsigned long long to,...

Can I pass any number of bytes to hs_deserialize_database and make sure that using it in other functions is memory safe if the call was successful? Some testing showed that's...

Replace bitsConsumed with bitsLeft to optimize BitStream

4

This change improves performance for x86 with BMI2 because before we were doing subtraction from 64 to shift but if we move it to bitsLeft, we are going to subtract...