Add tally formatter

src/formatting.rs

@@ -62,6 +62,12 @@
 //! `max_value`            | which value is treated as "full". For example, for battery level `100` is full. | `100`
 //! `vertical` or `v`      | whether to render the bar vertically or not                                     | `false`
 //!
+//! ## `tally` - Display numbers as tally marks
+//!
+//! Argument       | Description                                                                                                                                                                     |Default value
+//! ---------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------
+//! `style` or `s` | One of [chinese_counting_rods](https://en.wikipedia.org/wiki/Counting_rods), [chinese_tally, western_tally, western_tally_ungrouped](https://en.wikipedia.org/wiki/Tally_marks) | western_tally
+//!
 //! ## `pango-str` - Just display the text without pango markup escaping
 //!
 //! No arguments.

src/formatting/formatter.rs

@@ -11,6 +11,8 @@ use crate::errors::*;
 
 mod bar;
 pub use bar::BarFormatter;
+mod tally;
+pub use tally::TallyFormatter;
 mod datetime;
 pub use datetime::{DatetimeFormatter, DEFAULT_DATETIME_FORMATTER};
 mod eng;
@@ -37,6 +39,7 @@ pub fn new_formatter(name: &str, args: &[Arg]) -> Result<Box<dyn Formatter>> {
         "eng" => Ok(Box::new(EngFormatter::from_args(args)?)),
         "pango-str" => Ok(Box::new(PangoStrFormatter::from_args(args)?)),
         "str" => Ok(Box::new(StrFormatter::from_args(args)?)),
+        "tally" => Ok(Box::new(TallyFormatter::from_args(args)?)),
         _ => Err(Error::new(format!("Unknown formatter: '{name}'"))),
     }
 }