Delphi-style Format
Spec: "%" [index ":"] ["-"] [width] ["." prec] type
Note that: Index, width, and precision specifiers can be specified directly, using a decimal digit string (for example "%10d"), or indirectly, using an asterisk character (for example "%*.*f")
Delphi-style Format Spec: "%" [index ":"] ["-"] [width] ["." prec] type Note that: Index, width, and precision specifiers can be specified directly, using a decimal digit string (for example "%10d"), or indirectly, using an asterisk character (for example "%*.*f")