Add tally formatter

src/formatting.rs

@@ -63,6 +63,12 @@
 //! `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`/`ccr`](https://en.wikipedia.org/wiki/Counting_rods), [`chinese_tally`/`ct`, `western_tally`/`wt`, `western_tally_ungrouped`/`wtu`](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

@@ -25,6 +25,8 @@ macro_rules! new_fmt {
 
 mod bar;
 pub use bar::BarFormatter;
+mod tally;
+pub use tally::TallyFormatter;
 mod datetime;
 pub use datetime::{DatetimeFormatter, DEFAULT_DATETIME_FORMATTER};
 mod eng;
@@ -51,6 +53,7 @@ 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}'"))),
     }
 }