Added case insentive variation of fl-contains

README.md

@@ -259,9 +259,10 @@ Here you find all the [CSS selectors](https://www.w3.org/TR/selectors/#selectors
 
 There are also some selectors based on non-standard specifications. They are:
 
-| Pattern | Description |
-|----------------------|-----------------------------------------------------|
-| E:fl-contains('foo') | an E element that contains "foo" inside a text node |
+| Pattern | Description |
+|-----------------------|------------------------------------------------------------------------|
+| E:fl-contains('foo') | an E element that contains "foo" inside a text node |
+| E:fl-icontains('foo') | an E element that contains "foo" inside a text node (case insensitive) |
 
 ## Special thanks
 

lib/floki/selector.ex

@@ -210,6 +210,11 @@ defmodule Floki.Selector do
  PseudoClass.match_contains?(tree, html_node, pseudo_class)
  end
 
+ # Case insensitive contains
+ defp pseudo_class_match?(html_node, pseudo_class = %{name: "fl-icontains"}, tree) do
+ PseudoClass.match_icontains?(tree, html_node, pseudo_class)
+ end
+
  defp pseudo_class_match?(html_node, %{name: "root"}, tree) do
  PseudoClass.match_root?(html_node, tree)
  end

lib/floki/selector/pseudo_class.ex

@@ -72,6 +72,21 @@ defmodule Floki.Selector.PseudoClass do
  res != nil
  end
 
+ # Case insensitive contains
+ def match_icontains?(tree, html_node, %__MODULE__{value: value}) do
+ downcase_value = String.downcase(value)
+
+ res =
+ Enum.find(html_node.children_nodes_ids, fn id ->
+ case Map.get(tree.nodes, id) do
+ %Text{content: content} -> String.downcase(content) =~ downcase_value
+ _ -> false
+ end
+ end)
+
+ res != nil
+ end
+
  defp match_position?(relative_position, value, name) do
  case value do
  position when is_integer(position) ->

test/floki_test.exs

@@ -1160,6 +1160,14 @@ defmodule FlokiTest do
  ]
  end
 
+ test "icontains pseudo-class" do
+ doc = document!(html_body(~s(<p>One</p><p>Two</p><div>nothing<b>42</b></div>)))
+
+ assert Floki.find(doc, "p:fl-icontains('two')") == [
+ {"p", [], ["Two"]}
+ ]
+ end
+
  test "contains psuedo-class with substring" do
  html =
  document!(