Module fmt 

Source text formatter with span highlights and notes.

Here are the kind of things you can produce with the Formatter (without colors):

 1 | /     pub fn fibonacci(n: i32) -> u64 {
   | |                     ^______^        ^
   | |  __________________________|________|
   | | |                          |
   | | |                          this is a pair of parenthesis
 2 | | |       if n < 0 {
   | | |  ______________^
 3 | | | |         panic!("{} is negative!", n);
   | | | |               ^"^^             "   ^ this is a pair of parenthesis
   | | | |               ||_|_____________|   |
   | | | |               |__|_____________|___|
   | | | |                  |             |
   | | | |                  |             this is a string
   | | | |                  |
   | | | |                  this is a pair of braces
 4 | | | |     } else if n == 0 {
   | | | |_____^                ^
   | | |  _____|________________|
   | | | |     |
   | | | |     this is a pair of braces
 5 | | | |         panic!("zero is not a right argument to fibonacci()!");
   | | | |               ^"                                         ^^ "^ parentheses
   | | | |               ||__________________________________________|_||
   | | | |               |___________________________________________|_||
   | | | |                                                           | |
   | | | |                                                           | this is a string
   | | | |                                                           |
   | | | |                                                           parentheses
 6 | | | |     } else if n == 1 {
   | | | |_____^                ^
   | | |       |                |
   | | |  _____|________________|
   | | | |     |
   | | | |     this is a pair of braces
 7 | | | |         return 1;
 8 | | | |     }
   | | | |_____^ this is a pair of braces
 9 | | |
10 | | |       let mut sum = 0;
11 | | |       let mut last = 0;
12 | | |       let mut curr = 1;
13 | | |       for _i in 1..n {
   | | |  ____________________^
14 | | | |         sum = last + curr;
15 | | | |         last = curr;
16 | | | |         curr = sum;
17 | | | |     }
   | | | |_____^ this is a pair of braces
18 | | |       sum
19 | | |   }
   | | |___^^ this is the whole program
   | |_____|| what a nice program!
   |       |
   |       this is a pair of braces
20 |

Structs

Formatted

Formatted text.

Formatter

Text formatter with span highlights.

Highlight

Text highlight.

Enums

Char

Character with style information.

Color

Colors used to render the text.

ImportantLines

A set of important lines to render.

Style

Highlight format description.