wordof
int wordof(unsigned char, unsigned char *);
while (wordof(which, wcursor)) {
while (!margin() && wordof(which, wcursor))
if (wcursor < linebuf || !wordof(which, wcursor))
else if (!wordof(which, wcursor))
while (wordof(which, wcursor)) {
cp > ogcursor && wordof(c, pcp); cp = pcp, pcp = lastchr(ogcursor, cp))
cp > ogcursor && wordof(wdtype, pcp); cp = pcp, pcp = lastchr(ogcursor, pcp))