How to align multiple fields together in fmt?

Is it possible to align multiple fields together?

E.g.,

std::format("{:{}:<12} text", file, line)

to align as

main.cpp:1   text

and not as

main.cpp:   1 text

>Solution :

For the desired output, you could do:

std::cout << std::format("{0}:{1:<12} text", file, line) << '\n';

where:

• {0} refers to the first argument (i.e. file)

• {1:<12} is a nested field specifier for the second argument (i.e. line). The 1 refers to the second argument, and
  :<12 means left-align and pad to 12 characters

See live demo