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- /****************************************************************/
- /* Unctrl() routines of the PCcurses package */
- /* */
- /****************************************************************/
- /* This version of curses is based on ncurses, a curses version */
- /* originally written by Pavel Curtis at Cornell University. */
- /* I have made substantial changes to make it run on IBM PC's, */
- /* and therefore consider myself free to make it public domain. */
- /* Bjorn Larsson (...mcvax!enea!infovax!bl) */
- /****************************************************************/
- /* 1.0: Release: 870515 */
- /****************************************************************/
- /* Modified to run under the MINIX operating system by Don Cope */
- /* These changes are also released into the public domain. */
- /* 900906 */
- /****************************************************************/
-
- #include <curses.h>
- #include "curspriv.h"
-
- static char strbuf[3] = {0,0,0};
-
- /****************************************************************/
- /* Unctrl() returns a char pointer to a string corresponding to */
- /* argument character 'c'. */
- /****************************************************************/
-
- char *unctrl(c)
- char c;
- {
- int ic = c;
- ic &= 0xff;
-
- if ((ic >= ' ') && (ic != 0x7f)) /* normal characters */
- {
- strbuf[0] = ic;
- strbuf[1] = '\0';
- return(strbuf);
- } /* if */
- strbuf[0] = '^'; /* '^' prefix */
- if (c == 0x7f) /* DEL */
- strbuf[1] = '?';
- else /* other control */
- strbuf[1] = ic + '@';
- return(strbuf);
- } /* unctrl */
-