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39934: if a widget execution fails, try to execute a corresponding immortal widget instead.

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Barton E. Schaefer 2016-11-13 15:52:09 -08:00
parent 7b8f638713
commit cbb9ca3dfb
2 changed files with 18 additions and 3 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2016-11-13 Barton E. Schaefer <schaefer@zsh.org>
* 39934: Src/Zle/zle_main.c: if a widget execution fails, try to
execute a corresponding immortal widget instead.
* 39933: Src/Zle/zle_main.c: more of zlecallhook() in redrawhook(),
add commentary on some of the differences

18
Src/Zle/zle_main.c
View file

@ -1368,6 +1368,16 @@ zleread(char **lp, char **rp, int flags, int context, char *init, char *finish)
return s;
}
/**/
static int
execimmortal(Thingy func, char **args)
{
Thingy immortal = rthingy_nocreate(dyncat(".", func->nam));
if (immortal)
return execzlefunc(immortal, args, 0);
return 1;
}
/*
* Execute a widget. The third argument indicates that the global
* variable bindk should be set temporarily so that WIDGET etc.
@ -1389,7 +1399,7 @@ execzlefunc(Thingy func, char **args, int set_bindk)
remetafy = 1;
}
if(func->flags & DISABLED) {
if (func->flags & DISABLED) {
/* this thingy is not the name of a widget */
char *nm = nicedup(func->nam, 0);
char *msg = tricat("No such widget `", nm, "'");
@ -1397,7 +1407,7 @@ execzlefunc(Thingy func, char **args, int set_bindk)
zsfree(nm);
showmsg(msg);
zsfree(msg);
ret = 1;
ret = execimmortal(func, args);
} else if((w = func->widget)->flags & (WIDGET_INT|WIDGET_NCOMP)) {
int wflags = w->flags;
@ -1461,7 +1471,7 @@ execzlefunc(Thingy func, char **args, int set_bindk)
zsfree(nm);
showmsg(msg);
zsfree(msg);
ret = 1;
ret = execimmortal(func, args);
} else {
int osc = sfcontext, osi = movefd(0);
int oxt = isset(XTRACE);
@ -1483,6 +1493,8 @@ execzlefunc(Thingy func, char **args, int set_bindk)
opts[XTRACE] = oxt;
sfcontext = osc;
endparamscope();
if (errflag == ERRFLAG_ERROR && !(ret = execimmortal(func, args)))
errflag &= ~ERRFLAG_ERROR;
lastcmd = w->flags & ~(WIDGET_INUSE|WIDGET_FREE);
if (inuse) {
w->flags &= WIDGET_INUSE|WIDGET_FREE;