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root/Development/ray/src/rt/editline.c

Comparing ray/src/rt/editline.c (file contents):
Revision 1.1 by greg, Thu Feb 2 10:41:22 1989 UTC vs.
Revision 1.2 by greg, Fri Sep 29 13:23:54 1989 UTC

#	Line 10 | Line 10 | static char SCCSid[] = "$SunId$ LBL";
10		*      10/5/88
11		*/
12
13	<	#include  <ctype.h>
13	>	#define iscntrl(c)      ((c) < ' ')
14	>	#define isblank(c)      ((c) == ' ')
15	>	#define iserase(c)      ((c) == '\b' || (c) == 127)
16	>	#define iswerase(c)     ((c) == 'W'-'@')
17	>	#define iskill(c)       ((c) == 'U'-'@' || (c) == 'X'-'@')
18
19
20	<	editline(buf, c_get, s_put, c_erase, c_kill)    /* edit input line */
20	>	editline(buf, c_get, s_put)     /* edit input line */
21		char  *buf;
22		int  (*c_get)(), (*s_put)();
19	–	int  c_erase, c_kill;
23		{
24		static char  erases[] = "\b \b";
25		static char  obuf[4];
#	Line 25 | Line 28 | int  c_erase, c_kill;
28
29		i = 0;
30		while ((c = (*c_get)()&0177) != '\n' && c != '\r')
31	<	if (c == c_erase) {             /* single char erase */
31	>	if (iserase(c)) {               /* single char erase */
32		if (i > 0) {
33		(*s_put)(erases);
34		--i;
35		}
36	<	} else if (c == c_kill) {       /* kill line */
36	>	} else if (iswerase(c)) {       /* word erase */
37	>	while (i > 0 && isblank(buf[i-1])) {
38	>	(*s_put)(erases);
39	>	--i;
40	>	}
41	>	while (i > 0 && !isblank(buf[i-1])) {
42	>	(*s_put)(erases);
43	>	--i;
44	>	}
45	>	} else if (iskill(c)) {         /* kill line */
46		while (i > 0) {
47		(*s_put)(erases);
48		--i;

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