An Elixir library to extract useful data from HTML documents, suitable for web scraping.
iex(1)> nodes = Select.parse """
...(1)> <html>
...(1)> <head>
...(1)> <title>A Title</title>
...(1)> </head>
...(1)> <body>
...(1)> <h1>An H1</h1>
...(1)> <!-- A Comment -->
...(1)> <ul>
...(1)> <li>A List Item</li>
...(1)> <!-- Another Comment -->
...(1)> <li>Another List Item</li>
...(1)> </ul>
...(1)> A Text Node
...(1)> </body>
...(1)> </html>
...(1)> """
[{"html", %{},
[{"head", %{}, [{"title", %{}, ["A Title"]}]},
{"body", %{},
[{"h1", %{}, ["An H1"]}, {:comment, " A Comment "},
{"ul", %{},
[{"li", %{}, ["A List Item"]}, {:comment, " Another Comment "},
{"li", %{}, ["Another List Item"]}]}, "\n A Text Node\n "]}]}]
iex(2)> nodes |> Select.find({:name, "li"})
[{"li", %{}, ["A List Item"]}, {"li", %{}, ["Another List Item"]}]
iex(3)> nodes |> Select.find(:text)
["A Title", "An H1", "A List Item", "Another List Item",
"\n A Text Node\n "]
iex(4)> nodes |> Select.find(:comment)
[comment: " A Comment ", comment: " Another Comment "]
iex(5)> nodes |> Select.find({:or, {:name, "li"}, :text})
["A Title", "An H1", {"li", %{}, ["A List Item"]}, "A List Item",
{"li", %{}, ["Another List Item"]}, "Another List Item",
"\n A Text Node\n "]
For more available matchers, check out the tests.
MIT