From 3a0f20e68b700deccbc9ca3531876b3149d6b141 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Tue, 2 Aug 2016 18:50:26 +1000
Subject: [PATCH] ascii: add is_space

---
 ascii.hpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/ascii.hpp b/ascii.hpp
index 0d1daebf..b951ad93 100644
--- a/ascii.hpp
+++ b/ascii.hpp
@@ -52,6 +52,26 @@ namespace util { namespace ascii {
     {
         return c - 'A' + 'a';
     }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    constexpr inline
+    bool
+    is_space (char c)
+    {
+        switch (c) {
+        case ' ':
+        case '\f':
+        case '\n':
+        case '\r':
+        case '\t':
+        case '\v':
+            return true;
+
+        default:
+            return false;
+        }
+    }
 } }
 
 #endif