From 5a16bda0fa232eaaf3a497f569939a4f1bcf727f Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 11 Sep 2023 09:40:05 +0200
Subject: Recognize --file-list value `-` as request to write to stdout

---
 xsd/xsd/xsd.cxx | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

(limited to 'xsd/xsd/xsd.cxx')

diff --git a/xsd/xsd/xsd.cxx b/xsd/xsd/xsd.cxx
index 0df4ea0..5a239d5 100644
--- a/xsd/xsd/xsd.cxx
+++ b/xsd/xsd/xsd.cxx
@@ -770,38 +770,43 @@ main (int argc, char* argv[])
       try
       {
         OutputFileStream ofs;
-        SemanticGraph::Path path (fl);
+        if (fl != "-")
+        {
+          SemanticGraph::Path path (fl);
 
-        ofs.open (path.string ().c_str (), ios_base::out);
+          ofs.open (path.string ().c_str (), ios_base::out);
 
-        if (!ofs.is_open ())
-        {
-          wcerr << path << ": error: unable to open in write mode" << endl;
-          return 1;
+          if (!ofs.is_open ())
+          {
+            wcerr << path << ": error: unable to open in write mode" << endl;
+            return 1;
+          }
         }
 
+        std::ostream& os (ofs.is_open () ? ofs : cout);
+
         NarrowString d (common_ops.file_list_delim ());
         expand_nl (d);
 
         if (NarrowString p = common_ops.file_list_prologue ())
         {
           expand_nl (p);
-          ofs << p;
+          os << p;
         }
 
         for (FileList::iterator i (file_list.begin ()), e (file_list.end ());
              i != e;)
         {
-          ofs << *i;
+          os << *i;
 
           if (++i != e)
-            ofs << d;
+            os << d;
         }
 
         if (NarrowString e = common_ops.file_list_epilogue ())
         {
           expand_nl (e);
-          ofs << e;
+          os << e;
         }
       }
       catch (SemanticGraph::InvalidPath const&)
-- 
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