Hi,

This is a very easy question for professional programmers and has nothing to do with CFD, but I appreciate it if you could give me some advice or let me know of an online reference:

The 1st line of a file is:

24 struc.56 18 A B C

I am trying to write a FORTRAN program that read this file. Problem is that I need to separate struc. from 56; ie, struc. in a character variable and 56 in an integer variable. So, what is important is 56 that should be put into a variable like N.

How can I do that?

Thank you. Rose

How about using formatted input?

character :: cbuf*6, C1*2, C2*2, C3*2

open(9,file="myfile.txt") read(9,'(I3,A6,I2,X,I2,3A2)') i1, cbuf, i2, i3, C1, C2, C3

Cheers

Renato.

oops

I guess, some breaklines would be helpful ;-)

character :: cbuf*6, C1*2, C2*2, C3*2 open(9,file="myfile.txt") read(9,'(I3,A6,I2,X,I2,3A2)') i1, cbuf, i2, i3, C1, C2, C3

Thanks, that worked.

since you have know the length of each part of the sentence ,i don't think it is difficulty to read it !

If it wasn't, what was the solution? Because, I have some cases like that. Any clue?

Is this easier in MATLAB?

Thanks Rose

You don't need to worry about it. Formatted input data is something very common in Fortran and any other programming languages. If you need to "break" data in a reading statement you only need to know the data type (integer, character, real*4, real*8) the data width (how many columns) and set the formatted input accordingly with the FORMAT command as I suggested in my first post.

Hope it helps you

Regards

Renato.

ps.: Go through some Fortran user's guide on the session describing the FORMAT command that I'm sure you'll find a bunch of examples to guide you.