WSP
if (!WSP(buf[0])) { /* whitespace -> continuation */
if (!WSP(s[pos]) && s[pos] != ',' && s[pos] != ';') {
for (; pos < len && !pstate.quote && (WSP(s[pos]) || s[pos] == ':' ||
for (pos++; pos < len && WSP(s[pos]); pos++)
pstate.esc) && (s[pos] == '<' || WSP(s[pos]))))) {