add string_to_int to MiscUtils.h

docs/changelog.txt

@@ -73,7 +73,7 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 - ``Lua::PushInterfaceKeys()``: transforms viewscreen ``feed()`` keys into something that can be interpreted by lua-based widgets
 - ``Lua::Push()``: now handles maps with otherwise supported keys and values
 - Constructions module: added ``insert()`` to insert constructions into the game's sorted list.
-- MiscUtils: moved the following string transformation functions from ``uicommon.h``: ``int_to_string``, ``ltrim``, ``rtrim``, and ``trim``
+- MiscUtils: moved the following string transformation functions from ``uicommon.h``: ``int_to_string``, ``ltrim``, ``rtrim``, and ``trim``; added ``string_to_int``
 
 ## Lua
 - ``widgets.Scrollbar``: new scrollbar widget that can be paired with an associated scrollable widget. Integrated with ``widgets.Label`` and ``widgets.List``.

library/include/MiscUtils.h

@@ -387,13 +387,21 @@ DFHACK_EXPORT std::string toUpper(const std::string &str);
 DFHACK_EXPORT std::string toLower(const std::string &str);
 DFHACK_EXPORT std::string to_search_normalized(const std::string &str);
 
-static inline std::string int_to_string(const int n)
-{
+static inline std::string int_to_string(const int n) {
     std::ostringstream ss;
     ss << n;
     return ss.str();
 }
 
+static inline int string_to_int(const std::string s, int default_ = 0) {
+    try {
+        return std::stoi(s);
+    }
+    catch (std::exception&) {
+        return default_;
+    }
+}
+
 // trim from start
 static inline std::string &ltrim(std::string &s) {
     s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](char x){ return !std::isspace(x); }));

plugins/autochop.cpp

@@ -185,18 +185,6 @@ private:
 
 static WatchedBurrows watchedBurrows;
 
-static int string_to_int(string s, int default_ = 0)
-{
-    try
-    {
-        return std::stoi(s);
-    }
-    catch (std::exception&)
-    {
-        return default_;
-    }
-}
-
 static void save_config()
 {
     config_autochop.val() = watchedBurrows.getSerialisedIds();