Revert breaking change from df5f7ad

Also fix bug in Transducer::read which would not read in states if
they had no incoming or outgoing edges, leaving gaps

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
 cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
 project(lttoolbox
-	VERSION 3.7.12
+	VERSION 3.7.13
 	LANGUAGES CXX C
 	)
 set(VERSION ${PROJECT_VERSION})

lttoolbox/string_utils.cc

@@ -143,10 +143,9 @@ StringUtils::ftoa(double f)
 int
 StringUtils::stoi(const UString& str)
 {
-  int ret, len;
-  int c = u_sscanf(str.c_str(), "%d%n", &ret, &len);
-  // apparently %n isn't counted when calculating the return value of u_sscanf
-  if (c != 1 || static_cast<size_t>(len) != str.size()) {
+  int ret;
+  int c = u_sscanf(str.c_str(), "%d", &ret);
+  if (c != 1) {
     throw std::invalid_argument("unable to parse int");
   }
   return ret;

lttoolbox/transducer.cc

@@ -625,6 +625,9 @@ Transducer::read(FILE *input, int const decalage)
   {
     int number_of_local_transitions = Compression::multibyte_read(input);
     int tagbase = 0;
+    if (new_t.transitions.find(current_state) == new_t.transitions.end()) {
+      new_t.transitions[current_state].clear(); // force create
+    }
     while(number_of_local_transitions > 0)
     {
       number_of_local_transitions--;