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class DenseSingleLineBlockException(Exception):
"""
This class defines the exception type for dense single line-block.
"""
def __init__(self, message="DenseSingleLineBlockException"):
self.message = message
super().__init__(self.message)
def __str__(self):
return f"{self.message}"
def __repr__(self):
return f"{self.message}"
class TitleDetectionException(Exception):
"""
This class defines the exception type for title detection.
"""
def __init__(self, message="TitleDetectionException"):
self.message = message
super().__init__(self.message)
def __str__(self):
return f"{self.message}"
def __repr__(self):
return f"{self.message}"
class TitleLevelException(Exception):
"""
This class defines the exception type for title level.
"""
def __init__(self, message="TitleLevelException"):
self.message = message
super().__init__(self.message)
def __str__(self):
return f"{self.message}"
def __repr__(self):
return f"{self.message}"
class ParaSplitException(Exception):
"""
This class defines the exception type for paragraph splitting.
"""
def __init__(self, message="ParaSplitException"):
self.message = message
super().__init__(self.message)
def __str__(self):
return f"{self.message}"
def __repr__(self):
return f"{self.message}"
class ParaMergeException(Exception):
"""
This class defines the exception type for paragraph merging.
"""
def __init__(self, message="ParaMergeException"):
self.message = message
super().__init__(self.message)
def __str__(self):
return f"{self.message}"
def __repr__(self):
return f"{self.message}"
class DiscardByException:
"""
This class discards pdf files by exception
"""
def __init__(self) -> None:
pass
def discard_by_single_line_block(self, pdf_dic, exception: DenseSingleLineBlockException):
"""
This function discards pdf files by single line block exception
Parameters
----------
pdf_dic : dict
pdf dictionary
exception : str
exception message
Returns
-------
error_message : str
"""
exception_page_nums = 0
page_num = 0
for page_id, page in pdf_dic.items():
if page_id.startswith("page_"):
page_num += 1
if "preproc_blocks" in page.keys():
preproc_blocks = page["preproc_blocks"]
all_single_line_blocks = []
for block in preproc_blocks:
if len(block["lines"]) == 1:
all_single_line_blocks.append(block)
if len(preproc_blocks) > 0 and len(all_single_line_blocks) / len(preproc_blocks) > 0.9:
exception_page_nums += 1
if page_num == 0:
return None
if exception_page_nums / page_num > 0.1: # Low ratio means basically, whenever this is the case, it is discarded
return exception.message
return None
def discard_by_title_detection(self, pdf_dic, exception: TitleDetectionException):
"""
This function discards pdf files by title detection exception
Parameters
----------
pdf_dic : dict
pdf dictionary
exception : str
exception message
Returns
-------
error_message : str
"""
# return exception.message
return None
def discard_by_title_level(self, pdf_dic, exception: TitleLevelException):
"""
This function discards pdf files by title level exception
Parameters
----------
pdf_dic : dict
pdf dictionary
exception : str
exception message
Returns
-------
error_message : str
"""
# return exception.message
return None
def discard_by_split_para(self, pdf_dic, exception: ParaSplitException):
"""
This function discards pdf files by split para exception
Parameters
----------
pdf_dic : dict
pdf dictionary
exception : str
exception message
Returns
-------
error_message : str
"""
# return exception.message
return None
def discard_by_merge_para(self, pdf_dic, exception: ParaMergeException):
"""
This function discards pdf files by merge para exception
Parameters
----------
pdf_dic : dict
pdf dictionary
exception : str
exception message
Returns
-------
error_message : str
"""
# return exception.message
return None
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