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Editing: line_endings.py
""" Functions for converting from DOS to UNIX line endings """ import os import re import sys def dos2unix(file): "Replace CRLF with LF in argument files. Print names of changed files." if os.path.isdir(file): print(file, "Directory!") return with open(file, "rb") as fp: data = fp.read() if '\0' in data: print(file, "Binary!") return newdata = re.sub("\r\n", "\n", data) if newdata != data: print('dos2unix:', file) with open(file, "wb") as f: f.write(newdata) return file else: print(file, 'ok') def dos2unix_one_dir(modified_files, dir_name, file_names): for file in file_names: full_path = os.path.join(dir_name, file) file = dos2unix(full_path) if file is not None: modified_files.append(file) def dos2unix_dir(dir_name): modified_files = [] os.path.walk(dir_name, dos2unix_one_dir, modified_files) return modified_files #---------------------------------- def unix2dos(file): "Replace LF with CRLF in argument files. Print names of changed files." if os.path.isdir(file): print(file, "Directory!") return with open(file, "rb") as fp: data = fp.read() if '\0' in data: print(file, "Binary!") return newdata = re.sub("\r\n", "\n", data) newdata = re.sub("\n", "\r\n", newdata) if newdata != data: print('unix2dos:', file) with open(file, "wb") as f: f.write(newdata) return file else: print(file, 'ok') def unix2dos_one_dir(modified_files, dir_name, file_names): for file in file_names: full_path = os.path.join(dir_name, file) unix2dos(full_path) if file is not None: modified_files.append(file) def unix2dos_dir(dir_name): modified_files = [] os.path.walk(dir_name, unix2dos_one_dir, modified_files) return modified_files if __name__ == "__main__": dos2unix_dir(sys.argv[1])
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