Failed to generate bindings for SDL 3.2.4

[RoqueDeicide]

My setup.py:

# NOTE: this is relative to `sdl_parser.py` if a relative path.
SDL_ROOT = "../SDL3Source/include/"


# NOTE: these are relative paths from SDL_ROOT,
# which defaults to "include" in the root of the project.
# All these paths should be reasonable defaults.
# Uncomment and change as needed.
PATH_BY_UNIT = {
    # "SDL": "SDL2/SDL.h",
     "SDL": "SDL3/SDL.h",
    # "SDL_main": "SDL3/SDL_main.h",
    # "SDL_vulkan": "SDL3/SDL_vulkan.h",
    # "SDL_image": "SDL3_image/SDL_image.h",
    # "SDL_mixer": "SDL3_mixer/SDL_mixer.h",
    # "SDL_ttf": "SDL3_ttf/SDL_ttf.h",
}

Command and its output:

python3 sdl_parser.py gen.cpp --module="sdl.raw.{ext}"
Note: Skipping SDL_Swap16 due to unnamed parameter
Note: Skipping SDL_Swap32 due to unnamed parameter
Note: Skipping SDL_Swap64 due to unnamed parameter
Note: Skipping _SDL_bsr_watcom due to unnamed parameter
Traceback (most recent call last):
  File "D:\Code\SDL_parser\sdl_parser.py", line 286, in <module>
    main()
  File "D:\Code\SDL_parser\sdl_parser.py", line 268, in main
    vis.visit(rules)
  File "D:\Code\SDL_parser\visitor.py", line 58, in visit
    self.visit_bitflag(rules)
  File "D:\Code\SDL_parser\gen\cpp.py", line 290, in visit_bitflag
    clean_name = _cut_similarity(
  File "D:\Code\SDL_parser\gen\cpp.py", line 67, in _cut_similarity
    if target[ti] == "_":
IndexError: string index out of range