string/find-all

    cfunction
    src/core/string.c on line 349, column 1

    (string/find-all patt str &opt start-index)

    Searches for all instances of pattern `patt` in string `str`. 
    Returns an array of all indices of found patterns. Overlapping 
    instances of the pattern are counted individually, meaning a byte 
    in `str` may contribute to multiple found patterns.