1 files changed, 26 insertions, 0 deletions
diff --git a/libs/litehtml/src/internal.h b/libs/litehtml/src/internal.h
new file mode 100644
index 0000000000..9b53a436df
--- /dev/null
+++ b/libs/litehtml/src/internal.h
@@ -0,0 +1,26 @@
+#ifndef LH_INTERNAL_H
+#define LH_INTERNAL_H
+// internal.h should not be included in header files
+// internal.h should be included after all other headers in a source file
+
+namespace litehtml
+{
+
+template<class T, class TT>
+bool operator/(const T& x, const TT& xx)
+{
+	return contains(xx, x);
+}
+// a in b if b contains a
+#define in /
+
+/* Limitations of overloaded operators compared to regular function calls:
+* 1. at least one operand must be a class, so cannot just write `ch in "abc"` 
+*    (possible solution: ch in "abc"_s)
+* 2. operand cannot be initializer list (exception: assignment ops), so cannot just write `ch in {'a','b','c'}` 
+*    (possible solution: ch in ${'a','b','c'})
+*/
+
+} // namespace litehtml
+
+#endif // LH_INTERNAL_H
+\ No newline at end of file