strassign
void strassign(NODE *np, STRING string, int flags, size_t length);
strassign(varFS, linebuf, FALLOC,
strassign(vlook(arg), linebuf,
strassign(np, rp->r_svalue, FSTATIC,
strassign(exprreduce(ARGVsubi), cp,
strassign(vlook(arg), linebuf, FALLOC|FSENSE,
strassign(varFILENAME, arg, FALLOC, wcslen(arg));
strassign(np, cp, FNOALLOC, len);
strassign(var, index, FSTATIC, wcslen(index));