A typical format string structure would look something like:
(rDw.o rDw.o)
where r stands for the number of repetitions of a given format, D for the descriptor of the information to be printed in the field (ie what type of info it is, like character or integer), w for the width of the field and o for options, if available. Besides the descriptor, all the necessary values are integers and are optional. The most interesting types are:
- A: Characters
- F: Floating point characters, where
o represents the number of digits after the decimal point.
- I: Integers, where
o represent the minimum number of digits to be printed
Example:
(A8,3A2,I10.5,F4.2)
would be:
- A string of 8 characters
- 3 strings of 2 characters
- An integer of up to 10 digits, with padding 0 to make it at least 5 characters long
- A floating number, 4 characters wide with 2 digits after the decimal poin
