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Amiga Format CD 28
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yacoder
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codes.h
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C/C++ Source or Header
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1998-05-09
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1KB
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38 lines
/*
* $Header: /usr/people/tcl/src/uutar/RCS/codes.h,v 1.1.1.2 1993/09/11 18:41:46 tcl Exp $
* Tom Lawrence
* tcl@sgi.com
*/
/* number of printable characters in output character set */
extern int numchars;
/* encoding/decoding table. inuse indicates whether or not the character
* whose ascii code is the offset into this array is part of the output
* printable character set.
*
* When encoding, the next 8 bits (not necessarily byte aligned) in the
* input binary bitstream are used to index into this array. The code
* field then indicates the printable output character to append to the
* output, and the len field indicates how many of the input 8 bits
* should be comsumed by this operation, i.e. the input bitstream is
* advanced by len bits.
*
* When decoding, the input printable ascii character is used to index
* into this array. The variable length (8 bits or less) bitfield stored
* in code and whose length is len, is appended to the output binary
* bitstream.
*/
extern struct code {
char inuse;
char code;
char len;
} codes[256];
void init_codes();
void parse_charval_list();
void print_charval_list();
#define ENCODE 0
#define DECODE 1