From 999cdf0007c004450c6ef17516ff9de4f765e30b Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Thu, 14 Jan 2016 22:02:46 -0500
Subject: [PATCH] common: Added unicodeLatinDigit

---
 src/common/unicode.cpp | 9 +++++++++
 src/common/unicode.h   | 1 +
 2 files changed, 10 insertions(+)

diff --git a/src/common/unicode.cpp b/src/common/unicode.cpp
index 8d2a36a9..889cde0e 100644
--- a/src/common/unicode.cpp
+++ b/src/common/unicode.cpp
@@ -78,3 +78,12 @@ bool unicodeLatinAlpha (unsigned int c)
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// Digits 0-9.
+//
+// TODO This list should be derived from the Unicode database.
+bool unicodeLatinDigit (unsigned int c)
+{
+  return c >= 0x30 && c <= 0x39;
+}
+
+////////////////////////////////////////////////////////////////////////////////
diff --git a/src/common/unicode.h b/src/common/unicode.h
index 51c3b21c..bf4b3ff8 100644
--- a/src/common/unicode.h
+++ b/src/common/unicode.h
@@ -29,6 +29,7 @@
 
 bool unicodeWhitespace (unsigned int);
 bool unicodeLatinAlpha (unsigned int);
+bool unicodeLatinDigit (unsigned int);
 
 #endif
 ////////////////////////////////////////////////////////////////////////////////