Add in many more digit separator flags.

This adds in the logic for new digit separator flags defining a number format, as well as enhances our documentation on the specification, however, it does not implement the parsing logic yet. Therefore, the unittests are expected to be broken now.

[skip ci]

Author: Alexhuszagh

CHANGELOG

@@ -19,7 +19,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Support for `required_integer_digits_with_exponent`, `required_fraction_digits_with_exponent`, and `required_mantissa_digits_with_exponent`, that is,`1.e5` and `.1e5`, as opposed to just requiring`1e5` (#215).
 - Added `supports_parsing_integers`, `supports_parsing_floats`, `supports_writing_integers`, and `supports_writing_floats` for our number formats (#215).
 - Added `required_base_prefix` and `required_base_suffix` for our number formats, requiring base prefixes and/or suffixes when parsing, and allowing writing base prefixes and/or suffixes (#215).
-- Added `NumberFormatBuilder::none()` for create a format with no flags set.
+- Added `NumberFormatBuilder::none()` for create a format with no flags set (#215).
+- Added in many more digit separator flags for the `NumberFormat`, including for signs, base prefixes, base suffixes, and restricting digit separators at the start of the number (#215).
 
 ### Changed
 

lexical-parse-integer/src/algorithm.rs

@@ -792,8 +792,7 @@ macro_rules! algorithm {
         );
     }
 
-    #[cfg(all(feature = "format", feature = "power-of-two"))]
-    if format.required_base_suffix() && !has_suffix {
+    if cfg!(all(feature = "format", feature = "power-of-two")) && format.required_base_suffix() && !has_suffix {
         return Err(Error::MissingBaseSuffix(iter.cursor()));
     }