110801     CRU: Convert, Compress and Restore File Utility  Version:
July 1985
 
Submitted by: Gilbert J. DeLeeuw, Cardiology Consultants,
Philadelphia, PA
 
Operating System: RSX-11M V4.1D  Source Language: MACRO-11  Memory
Required: 16.2KW  Keywords: File Management
 
Abstract: This program is primarily designed for operations on text
files,
and includes the following options:
 
. Converts files between fixed and variable length records
. Converts carriage control types (FORTRAN, LIST, and NONE)
. Converts between 8 column tabs and spaces
. Truncates or padds records
. Removes trailing blanks and tabs from records
. Selects a range of pages for output
. Compresses (or restores) records
 
The compression algorithm is based on repeat characters, and is
therefore especially effective on reducing the storage required
for files which contain significant amounts of filler (spaces)
or nulls.
 
The program was written in MACRO-11 and uses large buffers for
efficient processing.
 
 
 
Restrictions: Carriage control conversion from FORTRAN to LIST does
not support
overstrike.
 
Media (Service Charge Code): User's Manual (EA), One RX01 Diskette
(KA)  Format: FILES-11, 600' Magnetic Tape (MA)  Format: FILES-11
 
 
