From 4ec1f1755722bb59cdcc8650efa91b7e4f127171 Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Tue, 4 Nov 2014 22:34:18 -0500
Subject: [PATCH] CLI

- More strict definition of what is a tag.
---
 src/CLI.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/CLI.cpp b/src/CLI.cpp
index 6d0ea5cc6..b0740ff68 100644
--- a/src/CLI.cpp
+++ b/src/CLI.cpp
@@ -28,6 +28,7 @@
 #include <sstream>
 #include <algorithm>
 #include <iostream> // TODO Remove.
+#include <ctype.h>
 #include <Context.h>
 #include <Nibbler.h>
 #include <Lexer.h>
@@ -2065,10 +2066,15 @@ bool CLI::isCommand (const std::string& raw) const
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// Valid tag
+//   - Length > 1
+//   - Starts with +/-
+//   - Tag does not start with a digit
 bool CLI::isTag (const std::string& raw) const
 {
   if (raw.size () >= 2                 &&
       (raw[0] == '+' || raw[0] == '-') &&
+      ! isdigit(raw[1])                &&
       raw.find (' ') == std::string::npos)
     return true;