jeff@voder.UUCP (12/10/86)
Index: sys/tty.c 4.3BSD
Description:
The standard action of ^W (the word erase character) erases one
"word" of input, where a word is a sequence of non-{blank,tab}
characters, followed by zero or more {blank,tab} characters.
The following patch changes ^W to also consider '/' a word
delimiter. Basically, typing ^W will erase back to the first
previous blank, tab, or '/'. This is very handy when you make
a typing error half-way through a long pathname.
Fix:
RCS file: RCS/tty.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -c -r1.1 -r1.2
*** /tmp/,RCSt1014814 Wed Dec 10 11:22:11 1986
--- /tmp/,RCSt2014814 Wed Dec 10 11:22:19 1986
***************
*** 875,897 ****
*/
if (tp->t_line == NTTYDISC) {
if (c == tp->t_werasc) {
! if (tp->t_rawq.c_cc == 0)
! goto endcase;
! do {
c = unputc(&tp->t_rawq);
! if (c != ' ' && c != '\t')
goto erasenb;
ttyrub(c, tp);
! } while (tp->t_rawq.c_cc);
! goto endcase;
erasenb:
! do {
ttyrub(c, tp);
! if (tp->t_rawq.c_cc == 0)
! goto endcase;
c = unputc(&tp->t_rawq);
! } while (c != ' ' && c != '\t');
! (void) putc(c, &tp->t_rawq);
goto endcase;
}
if (c == tp->t_rprntc) {
--- 875,906 ----
*/
if (tp->t_line == NTTYDISC) {
if (c == tp->t_werasc) {
! while (tp->t_rawq.c_cc > 0) {
c = unputc(&tp->t_rawq);
! if (c != ' ' && c != '\t') {
! (void) putc(c, &tp->t_rawq);
goto erasenb;
+ }
ttyrub(c, tp);
! }
erasenb:
! while (tp->t_rawq.c_cc > 0) {
! c = unputc(&tp->t_rawq);
! if (c == ' ' || c == '\t' || c == '/') {
! (void) putc(c, &tp->t_rawq);
! goto eraseslash;
! }
ttyrub(c, tp);
! }
! eraseslash:
! while (tp->t_rawq.c_cc > 0) {
c = unputc(&tp->t_rawq);
! if (c != '/') {
! (void) putc(c, &tp->t_rawq);
! goto endcase;
! }
! ttyrub(c, tp);
! }
goto endcase;
}
if (c == tp->t_rprntc) {
--
Jeff Gilliam {ucbvax,pyramid,nsc}!voder!jeff