Joined: 31 Oct 2006
|Posted: Thu Feb 02, 2023 1:23 pm Post subject: Re:
I used to use tabs to get to column 7 a lot.
Tabs in data files do not have the same intended meaning as in Fortran fixed form source files. When a user creates a Fortran source file using a text editor, pressing the tab key may cause the cursor to move right to the next tab stop, but the tab characters are usually not saved to the Fortran source file, just to avoid trouble with the compiler.
FTN95 provides a /tabs option (appears to be selected, by default) to control how tabs are treated. Plato has an option (selected by default) to replace tabs by spaces.
My experience is that having tab characters in Fortran source files amounts to asking for trouble. Card punch machines and typewriters had control drums and tab bars for setting tab stops, but the output cards and paper sheets had only spaces.