commit 09ce82527947669e15fd0339d32673fd7d66473e
Author: Daniel Swanson <popcorn.tomato.dude@gmail.com>
Date:   Mon Jun 14 19:32:10 2021 -0500

    lttoolbox is switching to ICU, so the interface is changing

diff --git a/src/lexd.cc b/src/lexd.cc
index 6d528ba..7b0ff31 100644
--- a/src/lexd.cc
+++ b/src/lexd.cc
@@ -32,7 +32,7 @@ int main(int argc, char *argv[])
   bool single = false;
   bool stats = false;
   UFILE* input = u_finit(stdin, NULL, NULL);
-  FILE* output = stdout;
+  UFILE* output = u_finit(stdout, NULL, NULL);
   LexdCompiler comp;
 
   LtLocale::tryToSetLocale();
@@ -146,7 +146,7 @@ int main(int argc, char *argv[])
 
   if(outfile != "" && outfile != "-")
   {
-    output = fopen(outfile.c_str(), "wb");
+    output = u_fopen(outfile.c_str(), "wb", NULL, NULL);
     if(!output)
     {
       cerr << "Error: Cannot open file '" << outfile << "' for writing." << endl;
@@ -173,13 +173,13 @@ int main(int argc, char *argv[])
     //comp.alphabet.write(output);
     //Compression::multibyte_write(1, output);
     //Compression::wstring_write(L"main", output);
-    transducer->write(output);
+    //transducer->write(output);
   }
   else
   {
     transducer->show(comp.alphabet, output, 0, true);
   }
-  if(output != stdout) fclose(output);
+  u_fclose(output);
   delete transducer;
   return 0;
 }
diff --git a/src/lexdcompiler.cc b/src/lexdcompiler.cc
index 1cc1046..0c09509 100644
--- a/src/lexdcompiler.cc
+++ b/src/lexdcompiler.cc
@@ -63,13 +63,13 @@ const UnicodeString &LexdCompiler::name(string_ref r) const
 
 trans_sym_t LexdCompiler::alphabet_lookup(const UnicodeString &symbol)
 {
-  wstring wsymbol = to_wstring(symbol);
-  if(wsymbol.length() == 1)
-    return trans_sym_t((int)wsymbol[0]);
-  else
-  {
-    alphabet.includeSymbol(wsymbol);
-    return trans_sym_t(alphabet(wsymbol));
+  if (!symbol.hasMoreChar32Than(0, symbol.length(), 1)) {
+    return trans_sym_t((int)symbol.char32At(0));
+  } else {
+    UString temp;
+    temp.append(symbol.getBuffer(), symbol.length());
+    alphabet.includeSymbol(temp);
+    return trans_sym_t(alphabet(temp));
   }
 }
 trans_sym_t LexdCompiler::alphabet_lookup(trans_sym_t l, trans_sym_t r)
diff --git a/src/lexicon.cc b/src/lexicon.cc
index 9800e32..fcafcff 100644
--- a/src/lexicon.cc
+++ b/src/lexicon.cc
@@ -95,7 +95,9 @@ Lexicon::getTransducerWithFlags(Alphabet& alpha, Side side, unsigned int part, w
     int state = t->getInitial();
     if(flag.size() > 0)
     {
-      wstring f = L"@U." + flag + L"." + to_wstring(e) + L"@";
+      UChar buf[64];
+      u_snprintf(buf, 64, "@U.%S.%d@", flag.c_str(), e);
+      UString f = buf;
       alpha.includeSymbol(f);
       int s = alpha(f);
       state = t->insertSingleTransduction(alpha(s, s), state);