Date: Thu, 14 Oct 1999 21:34:15 +0900 From: Shigio Yamaguchi <shigio@tamacom.com> To: hackers@FreeBSD.ORG Subject: Nvi's new variable '@' Message-ID: <199910141234.VAA07300@tamacom.com>
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Hi,
I made a private patch for nvi(1) that enable you to use new variable '@'
in arguments of ex's ! or !! command.
The '@' is similar to '%' which means the editing file name.
If you are editing file.c at 110 line then ':!echo @' means ':!echo 110'.
It is convenient to use with gozilla(1).
If you have hypertext of source code generated by htags with -l option then
you can display editing text on mozilla as a hypertext.
:!gozilla +@ %
Suggested .nexrc:
+--------------------------
|map ^G :!gozilla +@ %^M
But this is a serious modification of nvi's spec. You cannot use '@' as a
constant in nvi's shell command line.
So, you had better use this patch personally.
Here is a patch for /usr/src/contrib/nvi/ex/ex_argv.c in freebsd-current.
*** ex_argv.c.org Fri Nov 1 15:45:30 1996
--- ex_argv.c Thu Oct 14 20:30:04 1999
***************
*** 326,331 ****
--- 326,332 ----
EX_PRIVATE *exp;
char *bp, *t;
size_t blen, len, off, tlen;
+ char b[30];
/* Replace file name characters. */
for (bp = *bpp, blen = *blenp, len = *lenp; cmdlen > 0; --cmdlen, ++cmd)
***************
*** 348,354 ****
F_SET(excp, E_MODIFY);
break;
case '%':
! if ((t = sp->frp->name) == NULL) {
msgq(sp, M_ERR,
"116|No filename to substitute for %%");
return (1);
--- 349,359 ----
F_SET(excp, E_MODIFY);
break;
case '%':
! case '@': /* replace with line number */
! if (*cmd == '@') {
! snprintf(b, sizeof(b), "%d", sp->lno);
! t = b;
! } else if ((t = sp->frp->name) == NULL) {
msgq(sp, M_ERR,
"116|No filename to substitute for %%");
return (1);
--
Shigio Yamaguchi - Tama Communications Corporation
Mail: shigio@tamacom.com, WWW: http://www.tamacom.com
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