Macro colprint 

macro_rules! colprint {
    ($fmt:expr, $($item:expr),* $(,)?) => { ... };
}

Macro for printing items in columns using a format string.

The format string specifies how each item should be displayed:

• {} for regular Display
• {:?} for Debug
• {:#?} for pretty Debug

You can also specify a width for each column by adding a colon and a number after the format:

• {:80} for Display with width 80
• {:?:60} for Debug with width 60
• {:#?:100} for pretty Debug with width 100

Any text between format specifications will be used as column separators:

• {} | {} will print a pipe with spaces between columns
• {} {} will print two spaces between columns
• {:?} -> {:#?} will print an arrow between columns

Examples

// Basic usage with Display
colprint!("{}{}", item1, item2);

// Using Debug format with separators
colprint!("{:?} | {:?}", item1, item2);

// Using pretty Debug with specific widths and separators
colprint!("{:#?:80} || {:#?:60}", item1, item2);

// Mixed formats with decorative separators
colprint!("{} -> {:?} => {:#?}", item1, item2, item3);