REORG Delete everything that's not innduct or build system or changed for innduct

[innduct.git] / frontends / encode.c

diff --git a/frontends/encode.c b/frontends/encode.c
deleted file mode 100644 (file)
index f23b882..0000000
--- a/frontends/encode.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*  $Id: encode.c 6119 2003-01-13 07:59:39Z rra $
-**
-**  Produce a seven-bit printable encoding of stdin on stdout.
-**  From @(#)encode.c 1.3 5/15/85, distributed with B2.11 News.
-**
-**  The encoding uses characters from 0x20 (' ') through 0x7A ('z').
-**  (That fits nicely into the UUCP 'f' protocol by Piet Beertema.) First,
-**  expand three eight-bit charcters into four six-bit ones.  Collect
-**  until we have 13, and spread the last one over the first 12, so that
-**  we have 12 6.5-bit characters.  Since there are very few half-bit
-**  machines, collect them into pairs, making six 13-bit characters.  We
-**  can do this as A * 91 + B where A and B are less then 91 after we add
-**  0x20 to make it printable.
-**
-**  And if you thought that was unclear, then we won't even get into the
-**  terminating conditions!
-*/
-
-#include "config.h"
-#include "clibrary.h"
-
-
-/*
-**  These characters can't appear in normal output, so we use them to
-**  mark that the data that follows is the terminator.  The character
-**  immediately following this pair is the length of the terminator (which
-**  otherwise might be indeterminable)
-*/
-#define ENDMARK1       ((90 * 91 + 90) / 91 + ' ')
-#define ENDMARK2       ((90 * 91 + 90) % 91 + ' ')
-
-static char    Buffer[13];
-static int     Count;
-
-
-static void
-dumpcode(char *p, int n)
-{
-    int        last;
-    int        c;
-
-    if (n == 13) {
-       n--;
-       last = p[12];
-    }
-    else if (n & 1)
-       last = 1 << (6 - 1);
-    else
-       last = 0;
-
-    for (; n > 0; n -= 2) {
-       c = *p++ << 6;
-       c |= *p++;
-       if (last & (1 << (6 - 1)))
-           c |= (1 << 12);
-       last <<= 1;
-
-       putchar((c / 91) + ' ');
-       putchar((c % 91) + ' ');
-    }
-}
-
-static void
-flushout(void)
-{
-    putchar(ENDMARK1);
-    putchar(ENDMARK2);
-    putchar(Count + ' ');
-    dumpcode(Buffer, Count);
-}
-
-
-static void
-encode(char *dest, int n)
-{
-    char       *p;
-    int        i;
-    int        j;
-    char               b4[4];
-
-    b4[0] = (dest[0] >> 2) & 0x3F;
-    b4[1] = ((dest[0] & 0x03) << 4) | ((dest[1] >> 4) & 0x0F);
-    b4[2] = ((dest[1] & 0x0F) << 2) | ((dest[2] >> 6) & 0x03);
-    b4[3] = (char)(n == 3 ? dest[2] & 0x3F : n);
-
-    for (p = b4, i = Count, dest = &Buffer[i], j = 4; --j >= 0; i++) {
-       if (i == 13) {
-           dumpcode(Buffer, 13);
-           dest = Buffer;
-           i = 0;
-       }
-       *dest++ = *p++;
-    }
-    Count = i;
-}
-
-
-int
-main(void)
-{
-    char       *p;
-    int        c;
-    char               b3[3];
-
-    for (p = b3; (c = getchar()) != EOF; ) {
-       *p++ = (char)c;
-       if (p == &b3[3]) {
-           encode(b3, 3);
-           p = b3;
-       }
-    }
-    encode(b3, (int)(p - b3));
-    flushout();
-    exit(0);
-    /* NOTREACHED */
-}