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Don't disallow null search patterns --- they are interpreted as being

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identical to the previous pattern.

Noticed-by:	Jeroen Ruigrok/Asmodai
This commit is contained in:
hoek 1999-09-14 21:20:58 +00:00
parent 5c70f9812a
commit 81dbec517f
1 changed files with 10 additions and 7 deletions
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17
usr.bin/more/ncommand.c
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@ -1280,7 +1280,8 @@ cstat(cident, args)
*
* The magicasksearch will ask the user for a regexp and intuit whether they
* want to invert the sense of matching or not: if the first character of the
* regexp is a '!', it is removed and the sense is inverted.
* regexp is a '!', it is removed and the sense is inverted. If the regexp
* entered is null, then we will use ${_ls_regexp} (error if not set).
*
* The toggle options are called _ls_direction and _ls_sense. In addition,
* ${_ls_regexp} is set to the regexp used. These variables are only set
@ -1315,9 +1316,6 @@ csearch(cident, args)
else
getinput("Search: ?", buf, 2);
switch (*buf) {
case '\0':
/* Cancelled */
return args;
case '!':
/* Magic */
if (direction == FORW)
@ -1333,11 +1331,10 @@ csearch(cident, args)
getinput("Search: /", buf, sizeof(buf));
else
getinput("Search: ?", buf, sizeof(buf));
case '\0':
sense = NOINVERT;
break;
}
if (!*buf)
return args;
str = buf;
break;
case SEARCH:
@ -1350,8 +1347,14 @@ csearch(cident, args)
if (cident == SEARCH || cident == MAGICASKSEARCH) {
settog("_ls_direction", direction, 2, "forw", "back");
settog("_ls_sense", sense, 2, "noinvert", "invert");
setvar("_ls_regexp", str);
if (*str)
setvar("_ls_regexp", str);
}
/*
* XXX Currently search() contains magic to deal with (*str=='\0').
* This magic should be moved into this function so that we can work
* as described in the function comment header.
*/
search(!direction, str, N, !sense);
return args;
}