Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/libcst/_tabs.py: 9%

1# Copyright (c) Meta Platforms, Inc. and affiliates. 

2# 

3# This source code is licensed under the MIT license found in the 

4# LICENSE file in the root directory of this source tree. 

5 

6 

7def expand_tabs(line: str) -> str: 

8 """ 

9 Tabs are treated as 1-8 spaces according to 

10 https://docs.python.org/3/reference/lexical_analysis.html#indentation 

11 

12 Given a string with tabs, this removes all tab characters and replaces them with the 

13 appropriate number of spaces. 

14 """ 

15 result_list = [] 

16 total = 0 

17 for ch in line: 

18 if ch == "\t": 

19 prev_total = total 

20 total = ((total + 8) // 8) * 8 

21 result_list.append(" " * (total - prev_total)) 

22 else: 

23 total += 1 

24 result_list.append(ch) 

25 

26 return "".join(result_list)