The core logic for string formatting is located in:

String formatting is based on Python's parameters. The actual string formatting parameters are as follows:

‍{:(wide_char)(align_type)(wide)(.float)(ext_type)}

Name	Content	Dependency	Optional	Comment
:	:		No	Standard format starting character
align_type	<,>,^		Yes	Represent left align, right align, and center
wide_char	Custom char	align_type	Yes	Character used for alignment padding
wide	Positive int	align_type	No	Alignment width
.float	.float		Yes	Floating point precision
ext_type	Type specifier		Yes	For validation and formatting to some extent

Important: The biggest difference from Python's formatting parameters is that the order of alignment parameters is fixed, regardless of left, right, or center alignment.

ext_type can take the following values: