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- /*
- * ++jrb, turn it into a fn
- */
-
- static char ret[3] = { '\0', '\0', '\0' };
-
- char *unctrl(ch)
- int ch;
- {
- int c = ch & 0377; /* Note 8bit chars get mapped to themselves */
-
- if((c < ' ') || (c == 0177))
- {
- ret[0] = '^';
- ret[1] = (c == 0177) ? '?' : c | 0100;
- }
- else
- {
- ret[0] = c;
- ret[1] = '\0';
- }
- return ret;
- }
-
-
- #if 0
- /*
- * Copyright (c) 1981 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)unctrl.c 5.3 (Berkeley) 6/30/88";
- #endif /* not lint */
-
- /*
- * define unctrl codes for each character
- *
- */
-
- /* LINTLIBRARY */
- char *_unctrl[] = { /* unctrl codes for ttys */
- "^@", "^A", "^B", "^C", "^D", "^E", "^F", "^G", "^H", "^I", "^J", "^K",
- "^L", "^M", "^N", "^O", "^P", "^Q", "^R", "^S", "^T", "^U", "^V", "^W",
- "^X", "^Y", "^Z", "^[", "^\\", "^]", "^~", "^_",
- " ", "!", "\"", "#", "$", "%", "&", "'", "(", ")", "*", "+", ",", "-",
- ".", "/", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", ":", ";",
- "<", "=", ">", "?", "@", "A", "B", "C", "D", "E", "F", "G", "H", "I",
- "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W",
- "X", "Y", "Z", "[", "\\", "]", "^", "_", "`", "a", "b", "c", "d", "e",
- "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s",
- "t", "u", "v", "w", "x", "y", "z", "{", "|", "}", "~", "^?"
- };
- #endif
-