From: ldo@nz.invalid   
      
   On Wed, 3 Apr 2024 19:20:30 -0500, Lynn McGuire wrote:   
      
   > On 4/3/2024 5:38 PM, Lawrence D'Oliveiro wrote:   
   >   
   >> On Wed, 3 Apr 2024 15:47:13 -0500, Lynn McGuire wrote:   
   >>   
   >>> ... we still use Fortran carriage control in column 1 in all of our   
   >>> main write statements, about 40,000 of them in our code.   
   >>   
   >> Never too soon to start fixing them. Do it one at a time.   
   >   
   > Gotta do them all at once since the carriage control is controlled by   
   > the OPEN statement.   
      
   There is a way to do it: open a second output file, without the Fortran   
   carriage control setting. Send both outputs to pipes read by a separate   
   filter process that interleaves the lines back into the real output file.   
      
   Now you can go through gradually, changing those output statements one by   
   one to write to the second file. Once they are all done, you can get rid   
   of the first file and the filter process, and resume output directly to   
   the output file.   
      
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