def preprocess_source(source, filename=None, include_dirs=[]):
"""
``preprocess_source`` run the C preprocessor on the given source or source filename.
:param str source: source to pre-process
:param str filename: optional filename to pre-process
:param list(str) include_dirs: list of string directories to use as include directories.
:return: returns a tuple of (preprocessed_source, error_string)
:rtype: tuple(str,str)
:Example:
>>> source = "#define TEN 10\\nint x[TEN];\\n"
>>> preprocess_source(source)
('#line 1 "input"\\n\\n#line 2 "input"\\n int x [ 10 ] ;\\n', '')
>>>
"""
if filename is None:
filename = "input"
dir_buf = (ctypes.c_char_p * len(include_dirs))()
for i in range(0, len(include_dirs)):
dir_buf[i] = include_dirs[i].encode('charmap')
output = ctypes.c_char_p()
errors = ctypes.c_char_p()
result = core.BNPreprocessSource(source, filename, output, errors, dir_buf,
len(include_dirs))
output_str = output.value
error_str = errors.value
core.BNFreeString(ctypes.cast(output, ctypes.POINTER(ctypes.c_byte)))
core.BNFreeString(ctypes.cast(errors, ctypes.POINTER(ctypes.c_byte)))
if result:
return (output_str, error_str)
return (None, error_str)
def preprocess_source(
source: str,
filename: str = None,
include_dirs: Optional[List[str]] = None) -> Tuple[Optional[str], str]:
"""
``preprocess_source`` run the C preprocessor on the given source or source filename.
:param str source: source to pre-process
:param str filename: optional filename to pre-process
:param include_dirs: list of string directories to use as include directories.
:type include_dirs: list(str)
:return: returns a tuple of (preprocessed_source, error_string)
:rtype: tuple(str,str)
:Example:
>>> source = "#define TEN 10\\nint x[TEN];\\n"
>>> preprocess_source(source)
('#line 1 "input"\\n\\n#line 2 "input"\\n int x [ 10 ] ;\\n', '')
>>>
"""
if filename is None:
filename = "input"
if include_dirs is None:
include_dirs = []
dir_buf = (ctypes.c_char_p * len(include_dirs))()
for i in range(0, len(include_dirs)):
dir_buf[i] = include_dirs[i].encode('charmap')
output = ctypes.c_char_p()
errors = ctypes.c_char_p()
result = core.BNPreprocessSource(source, filename, output, errors, dir_buf,
len(include_dirs))
assert output.value is not None
assert errors.value is not None
output_str = output.value.decode('utf-8')
error_str = errors.value.decode('utf-8')
core.free_string(output)
core.free_string(errors)
if result:
return output_str, error_str
return None, error_str