Use underscores instead of spaces for all internal names. And renamed some script functions at the same time.

* cannocial_name_form now outputs "_", where it used to use " "
* this simplifies reflectio and scripting code, because now C++ names are also MSE internal names
* added 'caption' property to fields. This is used instead of the name in NativeLookEditor, since the latter will now contain underscores.
* renamed text related script functions for consistency, since we were touching that part of the code anyway.

src/util/string.cpp

@@ -168,22 +168,47 @@ String capitalize_sentence(const String& s) {
   return ret;
 }
 
+wxUniChar canonical_name_form(wxUniChar c) {
+  if (c == _(' ')) return _('_');
+  return c;
+}
 String canonical_name_form(const String& str) {
   String ret;
   ret.reserve(str.size());
-  bool leading = true;
+  FOR_EACH_CONST(c, str) {
+    ret += canonical_name_form(c);
+  }
+  return ret;
+}
+
+wxUniChar uncanonical_name_form(wxUniChar c) {
+  if (c == _('_')) return _(' ');
+  return c;
+}
+String uncanonical_name_form(const String& str) {
+  String ret;
+  ret.reserve(str.size());
+  FOR_EACH_CONST(c, str) {
+    ret += uncanonical_name_form(c);
+  }
+  return ret;
+}
+
+String name_to_caption(const String& str) {
+  String ret;
+  ret.reserve(str.size());
+  bool leading = true, first = true;
   FOR_EACH_CONST(c, str) {
     if ((c == _('_') || c == _(' '))) {
-      ret += leading ? c : wxUniChar(' ');
+      ret += leading ? c : _(' ');
+    } else if (first) {
+      // capitalize_sentence
+      ret += toUpper(c);
+      leading = false;
+      first = false;
     } else {
       ret += c;
       leading = false;
-/*      
-    } else if (isAlnum(c) || c == _('-')) {
-      ret += toLower(c);
-      leading = false;
-    } else {
-      // ignore non alpha numeric*/
     }
   }
   return ret;
@@ -392,9 +417,10 @@ bool is_substr_i(const String& str, size_t pos, const String& cmp) {
 }
 
 bool canonical_name_compare(const String& as, const Char* b) {
+  assert(canonical_name_form(b) == b);
   const Char* a = as.c_str();
   while (true) {
-    if (*a != *b && !(*a == _(' ') && *b == _('_'))) return false;
+    if (*a != *b && !(*a == _('_') && *b == _(' '))) return false;
     if (*a == _('\0')) return true;
     a++; b++;
   }