view: add split_on

view.hpp

@@ -750,6 +750,27 @@ namespace cruft {
     }
 
 
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename IteratorT>
+    std::pair<view<IteratorT>, view<IteratorT>>
+    split_on (
+        view<IteratorT> const buffer,
+        typename std::iterator_traits<IteratorT>::value_type const value
+    ) {
+        auto const pos = std::find (std::begin (buffer), std::end (buffer), value);
+        if (pos == std::end (buffer))
+            return {
+            buffer,
+            {std::end (buffer), std::end (buffer)}
+        };
+
+        return {
+            { buffer.begin (), pos, },
+            { pos + 1, buffer.end () }
+        };
+    }
+
+
     ///////////////////////////////////////////////////////////////////////////
     /// Returns a reference to a value of the designated type at the front of
     /// the word-view. if there is insufficient data for the extraction an