twarn about \w no arg - plan9port - [fork] Plan 9 from user space
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       ---
 (DIR) commit d0648192ab892f41213db3a3d92b0619de995e3d
 (DIR) parent 14b4a4702c719bf185dde797999a0ba5cad5465f
 (HTM) Author: rsc <devnull@localhost>
       Date:   Sat, 21 Apr 2007 22:37:13 +0000
       
       warn about \w no arg
       
       Diffstat:
         M src/cmd/htmlroff/t11.c              |       7 ++++++-
       
       1 file changed, 6 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/src/cmd/htmlroff/t11.c b/src/cmd/htmlroff/t11.c
       t@@ -72,8 +72,13 @@ e_w(void)
        {
                Rune *a;
                Rune buf[40];
       -        
       +        static Rune zero;
       +
                a = getqarg();
       +        if(a == nil){
       +                warn("no arg for \\w");
       +                a = &zero;
       +        }
                runesnprint(buf, sizeof buf, "%ld", runestrlen(a));
                pushinputstring(buf);
                nr(L("st"), 0);