118 lines
4.4 KiB
Python
118 lines
4.4 KiB
Python
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import json
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import argparse
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import os
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program_name = 'SplitOCR'
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program_description = 'Splits the given frt file into frt files for it\'s component pages.'
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parser = argparse.ArgumentParser(prog=program_name, description=program_description, add_help=False)
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# Constant values for printing.
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red_error = '\033[91mError:\033[0m'
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yellow_warning = '\033[93mWARNING:\033[0m'
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blue_okay = '\033[94mOK\033[0m'
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# Constant values for script.
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NUM_PAGES_TAG = 'numPages'
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ORIG_SRC_TYPE_TAG = 'originalSourceType'
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ORIG_SRC_FILE_TAG = 'originalSourceFile'
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FIXED_UP_TAG = 'fixedUp'
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PAGES_TAG = 'pages'
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# Parses the pages into a list of dicts form the given file.
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def parse_pages(file_name):
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"""
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Parses the pages from the given '.frt' file into a list of dictionaries containing the json info for the pages.
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:param file_name: The source '.frt' file to parse the pages form.
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:return: A list of dictionaries containing the json data for each page.
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"""
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pages_result = []
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with open(file_name) as reader:
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frt_json = json.load(reader)
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num_pages = frt_json[NUM_PAGES_TAG]
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orig_src_type = frt_json[ORIG_SRC_TYPE_TAG]
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orig_src_file = frt_json[ORIG_SRC_FILE_TAG]
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fixed_up = frt_json[FIXED_UP_TAG]
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pages_json = frt_json[PAGES_TAG]
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print('Parsing %s pages from %s', num_pages, file_name)
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for page in pages_json:
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# There is only one page!
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pages_result.append({NUM_PAGES_TAG: '1',
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ORIG_SRC_TYPE_TAG: orig_src_type,
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ORIG_SRC_FILE_TAG: orig_src_file,
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FIXED_UP_TAG: fixed_up,
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PAGES_TAG: page})
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return pages_result
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# Writes the data from
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def write_pages(pages_array, file_name, overwrite):
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"""
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Writes the pages in the passed list to a file named [file_name].[page_idx].frt
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:param pages_array: The list of page dictionaries parsed from file_name to write.
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:param file_name: The source file the dictionaries in pages_array were parsed from.
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:param overwrite: Weather or not to overwrite files if they exist.
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If set to True, they will be overwritten, if set to false, they will not.
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:return: nothing.
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"""
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for i in range(len(pages_array)):
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new_file = file_name.replace('.frt', '.{:04d}.frt'.format(i))
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# If the file exists and we aren't auto overwriting,
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if os.path.exists(new_file) and not overwrite:
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# Ask for permission.
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yes_or_no('%s File will be overwritten (%s)\n'
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' Continue (y/n)? ', yellow_warning, new_file)
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page = pages_array[i]
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with open(new_file, 'w+') as writer:
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json.dump(page, writer, indent=1)
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def main(in_file, auto_overwrite):
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pages = parse_pages(in_file)
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write_pages(pages, in_file, auto_overwrite)
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def check_args(in_file):
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fatal_error = False
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if not in_file.endswith('.frt'):
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print('%s File is not the correct type (.frt): %s', red_error, in_file)
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fatal_error = True
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if not os.path.exists(in_file):
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print('%s File does not exist: %s', red_error, in_file)
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fatal_error = True
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if fatal_error:
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parser.print_help()
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print('Fatal error occurred, Exiting...')
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exit(-1)
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# Will ask the user to input yes or no and if they input yes the program will continue to execute. If however, they
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# input no, the program will exit with status 0. 0 status is used here because there was no error, the user just chose
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# to exit rather than continue executing.
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def yes_or_no(message):
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decision = input(message)
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if decision.lower() == 'y' or decision.lower() == 'yes':
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print('%s continuing...', blue_okay)
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return
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elif decision.lower() == 'n' or decision.lower() == 'no':
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exit(0)
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else:
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yes_or_no(' Invalid input, enter Y(es) or N(o): ')
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if __name__ == '__main__':
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required_args = parser.add_argument_group('Required')
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optional_args = parser.add_argument_group('Optional')
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required_args.add_argument('-i', '--input_file', required=True,
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help='The input frt file to split the pages out of.')
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optional_args.add_argument('-w', '--overwrite', required=False, action='set_true',
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help='If used, previous files will be overwritten without asking permission.')
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optional_args.add_argument('-h', '--help', action='help', help='Prints the help message.')
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