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    Length: 2207 (0x89f)
    Types: TextFile
    Names: »ckdsq.man«

└─⟦9ae75bfbd⟧ Bits:30007242 EUUGD3: Starter Kit
    └─⟦3da672b63⟧ »EurOpenD3/misc/kermit.tar.Z« 
        └─⟦126dd3ca0⟧ 
            └─⟦this⟧ »ckdsq.man« 

TextFile

/* This program compresses a file without losing information.
 * The "usq" program is required to unsqueeze the file
 * before it can be used.
 *
 * Typical compression rates are between 30 and 50 percent for text files.
 *
 * Squeezing a really big file takes a few minutes.
 *
 * Useage:
 *	sq [file1] [file2] ... [filen]
 *
 * where file1 through filen are the names of the files to be squeezed.
 * The file type (under CP/M or MS-DOS) is changed to ".SQ"; under UN*X,
 * ".SQ" is appended to the file name. The original file name is stored
 * in the squeezed file.
 *
 * If no file name is given on the command line you will be
 * prompted for commands (one at a time). An empty command
 * terminates the program.
 *
 * The transformations compress strings of identical bytes and
 * then encode each resulting byte value and EOF as bit strings
 * having lengths in inverse proportion to their frequency of
 * occurrance in the intermediate input stream. The latter uses
 * the Huffman algorithm. Decoding information is included in
 * the squeezed file, so squeezing short files or files with
 * uniformly distributed byte values will actually increase size.
 */

/* Program to unsqueeze files formed by sq.com
 *
 * Useage:
 *
 *	usq [-count] [-fcount] [file1] [file2] ... [filen]
 *
 * where file1 through filen represent one or more files to be compressed,
 * and the following options may be specified:
 *
 *	-count		Previewing feature: redirects output
 * 			files to standard output with parity stripped
 *			and unprintables except CR, LF, TAB and  FF
 *			converted to periods. Limits each file
 *			to first count lines.
 *			Defaults to console, but see below how
 *			to capture all in one file for further
 *			processing, such as by PIP.
 *			Count defaults to a very high value.
 *			No CRC check is performed when previewing.
 *			Use drive: to cancel this.
 *
 *	-fcount		Same as -count except formfeed
 *			appended to preview of each file.
 *			Example: -f10.
 *
 * If no such items are given on the command line you will be
 * prompted for commands (one at a time). An empty command
 * terminates the program.
 *
 * The unsqueezed file name is recorded in the squeezed file.
 * 
 */