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#!/usr/bin/env python
"""\
This script replaces tab characters with spaces in source code files.
$LicenseInfo:firstyear=2024&license=viewerlgpl$
Second Life Viewer Source Code
Copyright (C) 2024, Linden Research, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation;
version 2.1 of the License only.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
$/LicenseInfo$
"""
import argparse
import os
def convert_tabs_to_spaces(file_path, tab_stop):
"""Convert tabs in a file to spaces, considering tab stops."""
with open(file_path, 'r') as file:
lines = file.readlines()
# Skip files with no tabs
if not any('\t' in line for line in lines):
return
new_lines = []
for line in lines:
# Remove trailing spaces
line = line.rstrip()
new_line = ''
column = 0 # Track the column index for calculating tab stops
for char in line:
if char == '\t':
# Calculate spaces needed to reach the next tab stop
spaces_needed = tab_stop - (column % tab_stop)
new_line += ' ' * spaces_needed
column += spaces_needed
else:
new_line += char
column += 1
new_lines.append(new_line + '\n')
with open(file_path, 'w') as file:
file.writelines(new_lines)
def process_directory(directory, extensions, tab_stop):
"""Recursively process files in directory, considering tab stops."""
extensions = tuple(extensions)
for root, dirs, files in os.walk(directory):
for file in files:
if file.endswith(extensions):
file_path = os.path.join(root, file)
print(f"Processing {file_path}")
convert_tabs_to_spaces(file_path, tab_stop)
def main():
parser = argparse.ArgumentParser(description='Convert tabs to spaces in files, considering tab stops.')
parser.add_argument('-e', '--extensions', type=str, default='c,cpp,h,hpp,inl,py,glsl,cmake', help='Comma-separated list of file extensions to process (default: "c,cpp,h,hpp,inl,py,glsl,cmake")')
parser.add_argument('-t', '--tabstop', type=int, default=4, help='Tab stop size (default: 4)')
parser.add_argument('-d', '--directory', type=str, required=True, help='Directory to process')
args = parser.parse_args()
extensions = args.extensions.split(',')
# Add a dot prefix to each extension if not present
extensions = [ext if ext.startswith('.') else f".{ext}" for ext in extensions]
process_directory(args.directory, extensions, args.tabstop)
print("Processing completed.")
if __name__ == "__main__":
main()
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