Make indoc work with tab-based indentation

[Boscop]

I use tabs for indentation and spaces for alignment, and would really appreciate it if indoc would also work with tab-based indentation.

[David Tolnay]

That would be a nice improvement! I would accept a PR to make indoc handle tab-based indentation. Here is the relevant code that removes indentation from a string:

---

indoc/unindent/src/lib.rs

Lines 49 to 78 in 5694843

 pub fn unindent_bytes(s: &[u8]) -> Vec<u8> { 
     // Document may start either on the same line as opening quote or 
     // on the next line 
     let ignore_first_line = s.starts_with(b"\n") || 
                             s.starts_with(b"\r\n"); 
  
     // Largest number of spaces that can be removed from every 
     // non-whitespace-only line after the first 
     let spaces = s.lines() 
         .skip(1) 
         .filter_map(count_spaces) 
         .min() 
         .unwrap_or(0); 
  
     let mut result = Vec::with_capacity(s.len()); 
     for (i, line) in s.lines().enumerate() { 
         if i > 1 || (i == 1 && !ignore_first_line) { 
             result.push(b'\n'); 
         } 
         if i == 0 { 
             // Do not un-indent anything on same line as opening quote 
             result.extend_from_slice(line); 
         } else if line.len() > spaces { 
             // Whitespace-only lines may have fewer than the number of spaces 
             // being removed 
             result.extend_from_slice(&line[spaces..]); 
         } 
     } 
     result 
 } 

[David Tolnay]

Closing for now because I don't plan to pursue this.