Essentially, implement the "self-documenting f-strings" from Python (link to feature). Note that today most of Python-style formatting is already supported OOTB (Link to cppfront documentation), since C++'s standard format specification is based on Python's specification (cppreference), this is just a small but nice productivity enhancement to have.
Examples:
>>> my_var = 42
>>> f"Prefix|{my_var}|Postfix"
'Prefix|42|Postfix'
>>> f"Prefix|{my_var=}|Postfix"
'Prefix|my_var=42|Postfix'
>>> f"Prefix|{my_var =}|Postfix"
'Prefix|my_var =42|Postfix'
>>> f"Prefix|{my_var = }|Postfix"
'Prefix|my_var = 42|Postfix'>>> my_f = lambda x: x+2
>>> f"Prefix|{my_f(2)}|Postfix"
'Prefix|4|Postfix'
>>> f"Prefix|{my_f(2)=}|Postfix"
'Prefix|my_f(2)=4|Postfix'
>>> f"Prefix|{my_f(2) =}|Postfix"
'Prefix|my_f(2) =4|Postfix'
>>> f"Prefix|{my_f(2) = }|Postfix"
'Prefix|my_f(2) = 4|Postfix'You can then imagine how cppfront's would look like:
test: std::string_view = "My String";
main: () = std::cout << "Prefix|(test = )$|Postfix";
// Outputs: Prefix|test = My String|Postfix
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Essentially, implement the "self-documenting f-strings" from Python (link to feature). Note that today most of Python-style formatting is already supported OOTB (Link to cppfront documentation), since C++'s standard format specification is based on Python's specification (cppreference), this is just a small but nice productivity enhancement to have.
Examples:
You can then imagine how cppfront's would look like: