Module format_string_exprs 

Tools to work with expressions present in format string literals for the format_args! family of macros. Primarily meant for assists and completions.

Enums

Arg

Enum for representing extracted format string args. Can either be extracted expressions (which includes identifiers), or placeholders {}.

Functions

parse_format_exprs

Parser for a format-like string. It is more allowing in terms of string contents, as we expect variable placeholders to be filled with expressions.

with_placeholders

Add placeholders like $1 and $2 in place of Arg::Placeholder, and unwraps the Arg::Ident and Arg::Expr enums.