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Next: Customized Plot Titles and Enhanced Up: EMME/2 News 11 June 1991 Previous: Release 5.0 - A Summary

Flexible Input/Output File Naming

Up to now, EMME/2 used fixed file names for all input and output operations, such as printing reports, generating plot files, punching out data sets and reading in data using batch entry. On PC and UNIX systems, the file names "REPORTS", "PLOTS", "BATCHOUT" and "Dxyy.IN" are used, whereas on VAX/VMS systems the standard names are "REPORTS.LIS", "PLOTS.DAT", "Bxyy.IN" and "Dxyy.IN".

In Release 5.0, this rigid file naming scheme has been replaced by flexible file naming. This new feature provides the four new menu commands reports=, plots=, batchout= and batchin= to redefine the files names to be used for reports, plots, batch output and batch input. A fifth new menu command files is used to display the currently active file naming conventions.

Flexible file naming offers the following advantages:

With the new file naming scheme, the input/output files are only opened just before they are needed. As a consequence, none of the four files is open at the level of the main menu. This implies that command escapes which manipulate these files (such as "erase reports") can be used safely at the level of the main menu. Also, this type of commands no longer causes file access conflicts, even when the corresponding files are opened with exclusive access privileges. On DOS systems in particular, SHARE.EXE no longer causes conflicts with macros that use command escapes at the menu level. Thus, if you have previously removed the SHARE utility to avoid these conflicts, it is recommended that you reinstall it now with Release 5.0.

For more details on the new flexible file naming refer to sections III-2.6 and III-4.1.1 of the EMME/2 User's Manual.


next up previous
Next: Customized Plot Titles and Enhanced Up: EMME/2 News 11 June 1991 Previous: Release 5.0 - A Summary


Heinz Spiess, EMME/2 Support Center, Thu Jun 6 14:23:46 MET DST 1996