Method MatchToken

parse/parser/state.go:220–227

MatchToken returns true if token matches at given position -- must be a valid position!

(tkey token.KeyToken, pos lexer.Pos)

// MatchToken returns true if token matches at given position -- must be
// a valid position!
func (ps *State) MatchToken(tkey token.KeyToken, pos lexer.Pos) bool {
	tok := tkey.Token
	isCat := tok.Cat() == tok
	isSubCat := tok.SubCat() == tok
	lx := ps.Src.LexAt(pos)
	tkey.Depth = lx.Token.Depth
	return ps.MatchLex(lx, tkey, isCat, isSubCat, pos)
}

// FindTokenReverse looks *backwards* for token in given region, with same depth as reg.Ed-1 end
// where the search starts. Returns position where found, false if not.