How to read values with unknown format from text file?

[jirina]

I would like to read real values from a text file, not knowing in advance their format (width and position of the decimal point).

E.g., a user specifies

0.915
1000
12.300

and I would like to read these values into real variables. Is there any way of opening and reading the text file so that I would not have to force the user to specify values in a certain format?

[jirina]

It is Murphy's law - I think I found a solution right after posting my questions. It seems that

[cpp]OPEN ( unit, FILE='...', FORM='FORMATTED', ACCESS='SEQUENTIAL', ACTION='READ' )

READ ( unit, * ) value[/cpp]

could do the job; I just hope there is nothing wrong about it.

[TimP]

For your example, list-directed is fine. F12.0 would work too.