MONTANA RIVERS INFORMATION SYSTEM 

 Rivers Report 



APPENDIX F (cont.) 



after it is initially opened. If it is "N" it will be closed. If it non-existent or 'T' it 

 will be left open. 



The directory for the index is taken from the preceding database definition 

 line. 



VARIABLES AS DIEIECTORIES 



When the directory field for a Database Definition Line starts with a "&" is 

 treated as a variable. This variable must be defined in one of two ways. 



1) If the variable is APP_DTA_DIR, APP_HLP_DIR, SYS_DTA_DIR, or 

 SYS_HLP_DIR it is one of the four pre-defined directory variables stored 

 in the SYSDIRS.MEM file. These variables are read into the program. To 

 change the values for these variables use the EDSYS program (See 

 Appendix G) or create Variable Definition Lines (Variable Definition Lines 

 overwrite the values assigned in the SYSDIRS.MEM file). 



2) Any other variable must be defined by adding a Variable Definition Line 

 to the Report Definition File. 



MODIFYING THE REPORT DEFINITION FILE 



The Report Definition File should be modified only if absolutely necessary. It 

 has been tested and should work as delivered. If you do need to modify it the 

 following should be noted: 



1) It is an ASCII (DOS) text file. If you use a word processor like Word 

 Perfect you must read the file in as a text file and save it as a text file. 



2) The File Count Definition Lines must occur before the corresponding 

 Database Definition Lines. The values for databases and indices must be 

 greater than or equal to the number of databases and indices in the 

 corresponding Database and Index Definition Lines. 



3) The second field (index count field) in a Database Definition Line must 

 equal the number of indices for that database. 



F - 6 



