lua_find C API?

[Rett Berg]

I'm thinking of writing a bytearray C extension and wanted to support find. Is there a reason the function which supports string.find isn't in the C API? Is it possible it could be added?

Thanks!

- Rett

[bil til]

You mean "pimping up" your C "function realm" with a C function
similar to string.find?

... but the string.find in strlib.c is quite clear, see the function
"str_find" there?

[Rett Berg]

Sorry, I should have been more clear.

https://www.lua.org/source/5.4/lstrlib.c.html

has "str_find_aux" which works off of the lua_State.

I'm asking if it could be slightly refactored to call a C function which is also exported for C extensions to use

// Find the pattern p in string s.

lua_Match lua_find(

  char* s, int s_len,   // subject

  char* p, int p_len); // pattern

And... I think I'm seeing why -- it's because that lua_Match object would be relatively complicated because of match groups. While it should be possible to define a lua_Match_next_group function or something to recursively extract the groups, I'm sure that wasn't seen as a high priority.

Thanks everyone, I answered my own question.

- Rett