converting google hunt query postgresql "tsquery"

how i modify google hunt query something i feed postgresql's to_tsquery() ?

if there's existent library out there, should i parsing google hunt query libel php?

for example, i'd take following google-ish hunt query:

("used cars" "new cars") -ford -mistubishi

and spin to_tsquery()-friendly string:

('used cars' | 'new cars') & !ford & !mistubishi

i fudge regexes, nonetheless that's best i do. there strong verbatim research slight going this? i'd means support extended hunt operators too (like google's site: intitle:) ask opposite database fields, so need distant tsquery string.

update: i comprehend special operators becomes google sql where-clause conversion, rather google tsquery conversion. nonetheless where apportionment competence enclose some-more tsqueries.

for example, google-style query:

((color:blue "4x4") style:coupe) -color:red used

should furnish an sql where-clause this:

where to_tsvector(description) review to_tsquery('used')
  tone <> 'red'
  ( (color = 'blue' to_tsvector(description) review to_tsquery('4x4') )
    impression = 'coupe'
  );

i'm certain above illusory regex?