Expect Invoker and Fedora build fixes

1 files changed, 27 insertions, 0 deletions

diff --git a/src/uscxml/Convenience.h b/src/uscxml/Convenience.h
index 0177476..cfaf617 100644
--- a/src/uscxml/Convenience.h
+++ b/src/uscxml/Convenience.h
@@ -20,6 +20,7 @@
 #ifndef CONVENIENCE_H_LU7GZ6CB
 #define CONVENIENCE_H_LU7GZ6CB
 
+#include <inttypes.h>
 #include <boost/detail/endian.hpp>
 
 namespace uscxml {
@@ -69,6 +70,32 @@ inline bool equals(const std::string& a, const std::string& b) {
 	return true;
 }
 
+inline std::string unescape(const std::string& a) {
+	std::stringstream b;
+	// see http://en.cppreference.com/w/cpp/language/escape
+	
+	std::string::const_iterator it = a.begin();
+	while (it != a.end()) {
+		char c = *it++;
+		if (c == '\\' && it != a.end()) {
+			switch (*it++) {
+				case '\\': c = '\\'; break;
+				case '0': c = '\0'; break;
+				case 'a': c = '\a'; break;
+				case 'b': c = '\b'; break;
+				case 'f': c = '\f'; break;
+				case 'n': c = '\n'; break;
+				case 'r': c = '\r'; break;
+				case 't': c = '\t'; break;
+				case 'v': c = '\v'; break;
+			}
+		}
+		b << c;
+	}
+
+	return b.str();
+}
+	
 // see http://www.cplusplus.com/forum/general/27544/
 
 // Little-endian operating systems: