From 4e4d733f90fb17f3c6b3458c4d8878882b682527 Mon Sep 17 00:00:00 2001
From: Phil Nash <github@philnash.me>
Date: Wed, 11 Jan 2017 16:24:00 +0000
Subject: [PATCH] Added \ as escape character in test names on the command line
 - so you can run tests by name when they contain , or [

---
 include/internal/catch_test_spec_parser.hpp | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/include/internal/catch_test_spec_parser.hpp b/include/internal/catch_test_spec_parser.hpp
index 3f794c6b..efe3a63c 100644
--- a/include/internal/catch_test_spec_parser.hpp
+++ b/include/internal/catch_test_spec_parser.hpp
@@ -19,11 +19,12 @@
 namespace Catch {
 
     class TestSpecParser {
-        enum Mode{ None, Name, QuotedName, Tag };
+        enum Mode{ None, Name, QuotedName, Tag, EscapedName };
         Mode m_mode;
         bool m_exclusion;
         std::size_t m_start, m_pos;
         std::string m_arg;
+        std::vector<std::size_t> m_escapeChars;
         TestSpec::Filter m_currentFilter;
         TestSpec m_testSpec;
         ITagAliasRegistry const* m_tagAliases;
@@ -36,6 +37,7 @@ namespace Catch {
             m_exclusion = false;
             m_start = std::string::npos;
             m_arg = m_tagAliases->expandAliases( arg );
+            m_escapeChars.clear();
             for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
                 visitChar( m_arg[m_pos] );
             if( m_mode == Name )
@@ -54,6 +56,7 @@ namespace Catch {
                 case '~': m_exclusion = true; return;
                 case '[': return startNewMode( Tag, ++m_pos );
                 case '"': return startNewMode( QuotedName, ++m_pos );
+                case '\\': return escape();
                 default: startNewMode( Name, m_pos ); break;
                 }
             }
@@ -69,7 +72,11 @@ namespace Catch {
                         addPattern<TestSpec::NamePattern>();
                     startNewMode( Tag, ++m_pos );
                 }
+                else if( c == '\\' )
+                    escape();
             }
+            else if( m_mode == EscapedName )
+                m_mode = Name;
             else if( m_mode == QuotedName && c == '"' )
                 addPattern<TestSpec::NamePattern>();
             else if( m_mode == Tag && c == ']' )
@@ -79,10 +86,17 @@ namespace Catch {
             m_mode = mode;
             m_start = start;
         }
+        void escape() {
+            m_mode = EscapedName;
+            m_escapeChars.push_back( m_pos );
+        }
         std::string subString() const { return m_arg.substr( m_start, m_pos - m_start ); }
         template<typename T>
         void addPattern() {
             std::string token = subString();
+            for( size_t i = 0; i < m_escapeChars.size(); ++i )
+                token = token.substr( 0, m_escapeChars[i] ) + token.substr( m_escapeChars[i]+1 );
+            m_escapeChars.clear();
             if( startsWith( token, "exclude:" ) ) {
                 m_exclusion = true;
                 token = token.substr( 8 );