Commit | Line | Data |
---|---|---|
8584be19 | 1 | #ifndef lint |
30647f51 | 2 | static char *sccsid = "@(#)wwmisc.c 3.1 83/08/11"; |
8584be19 EW |
3 | #endif |
4 | ||
5 | #include "ww.h" | |
6 | ||
2ea355ad EW |
7 | char * |
8 | unctrl(c) | |
9 | register char c; | |
10 | { | |
11 | static char buf[5]; | |
12 | register char *p = buf; | |
13 | ||
14 | if (c == DEL) { | |
15 | *p++ = '^'; | |
16 | *p++ = '?'; | |
17 | } else if (c < ' ') { | |
18 | *p++ = '^'; | |
19 | *p++ = c + '@'; | |
20 | } else if (c > DEL) { | |
21 | *p++ = '\\'; | |
22 | *p++ = (c >> 6 & 3) + '0'; | |
23 | *p++ = (c >> 3 & 7) + '0'; | |
24 | *p++ = (c & 7) + '0'; | |
25 | } else | |
26 | *p++ = c; | |
27 | *p = 0; | |
28 | return buf; | |
29 | } |