diff --git a/src/StringView/StringView.c b/src/StringView/StringView.c
index aace3d5..50fb023 100644
--- a/src/StringView/StringView.c
+++ b/src/StringView/StringView.c
@@ -132,6 +132,15 @@ StringView StringView_TakeWhile(StringView string, StringViewContinue function)
 	return StringView_Take(string, length);
 }
 
+StringView StringView_SpanWhile(StringView* source, StringViewContinue function)
+{
+	StringView result = StringView_TakeWhile(*source, function);
+
+	*source = StringView_Slice(*source, result.length, source->length);
+
+	return result;
+}
+
 StringView StringView_Take(StringView string, size_t length)
 {
 	return StringView_Slice(string, 0, length);
diff --git a/src/StringView/StringView.h b/src/StringView/StringView.h
index 98e1f79..bee2e2c 100644
--- a/src/StringView/StringView.h
+++ b/src/StringView/StringView.h
@@ -50,6 +50,7 @@ StringView StringView_Slice(StringView string, size_t start, size_t end); // sta
 StringView StringView_Drop(StringView string, size_t length);
 StringView StringView_Take(StringView string, size_t length);
 StringView StringView_TakeWhile(StringView string, StringViewContinue function);
+StringView StringView_SpanWhile(StringView* source, StringViewContinue function);
 
 bool StringView_Partition(StringView* left, StringView* right, StringView source, StringView delim);
 bool StringView_NextSplit(StringView* dest, StringView* source, StringView delim);