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Current File : //lib/calibre/calibre/ebooks/rtf2xml/check_encoding.py

#!/usr/bin/env python3


import sys


class CheckEncoding:

    def __init__(self, bug_handler):
        self.__bug_handler = bug_handler

    def __get_position_error(self, line, encoding, line_num):
        char_position = 0
        for char in line:
            char_position +=1
            try:
                char.decode(encoding)
            except ValueError as msg:
                sys.stderr.write('line: %s char: %s\n%s\n' %  (line_num, char_position, str(msg)))

    def check_encoding(self, path, encoding='us-ascii', verbose=True):
        line_num = 0
        with open(path, 'rb') as read_obj:
            for line in read_obj:
                line_num += 1
                try:
                    line.decode(encoding)
                except ValueError:
                    if verbose:
                        if len(line) < 1000:
                            self.__get_position_error(line, encoding, line_num)
                        else:
                            sys.stderr.write('line: %d has bad encoding\n' % line_num)
                    return True
        return False


if __name__ == '__main__':
    check_encoding_obj = CheckEncoding()
    check_encoding_obj.check_encoding(sys.argv[1])

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