// Root search represents the search's entrypoint via the DOM
// Delegations for different search methods are made upon here
//
// Root search is only executed for the first query in the query-chain
// All subsequent searches are based on a array of previous resulted tokens
func (q *Query) RootSearch() *searchutil.Result {
for {
// true by default
success := true
tokenType := q.tokenizer.Next()
if tokenType == html.ErrorToken {
break
}
token := q.tokenizer.Token()
success = q.Match(token)
if success == true {
tokenChain := tokenutil.NewChainFromTokenizer(q.tokenizer)
q.result.Add(tokenChain)
// as suggested by GetTokenChainFromTokenizer() we research in the inner of the chain
// for other matches
q.TokenSearch(tokenChain)
}
}
return q.result
}
// Builds a clean prepared token chain for all test methods
func getTokenChain() *tokenutil.Chain {
// example DOM
dom := `<div class="myClass1"><b>myValue1</b></div><span class="myClass2">myValue2</span>`
// tokenizer takes a io.Reader instance as arg
tokenizer := html.NewTokenizer(strings.NewReader(dom))
// simulate one next, as the chain expects a "used" tokenizer
tokenizer.Next()
// building a new chain from our tokenizer
chain := tokenutil.NewChainFromTokenizer(tokenizer)
return chain
}
