2 files changed, 17 insertions, 0 deletions
diff --git a/butl/standard-version b/butl/standard-version
index 71bd5be..c198d3e 100644
--- a/butl/standard-version
+++ b/butl/standard-version
@@ -51,6 +51,7 @@ namespace butl
     //
     std::string string () const;             // Package version.
     std::string string_project () const;     // Project version (no epoch/rev).
+    std::string string_project_id () const;  // Project version id (no snapsn).
     std::string string_version () const;     // Version only (no snapshot).
     std::string string_pre_release () const; // Pre-release part only (a.1).
     std::string string_snapshot () const;    // Snapshot part only (1234.1f23).
@@ -186,6 +187,7 @@ namespace butl
       butl::optional<standard_version> min_version, bool min_open,
       butl::optional<standard_version> max_version, bool max_open);
 
+    explicit
     standard_version_constraint (const standard_version& v)
         : standard_version_constraint (v, false, v, false) {}
 
diff --git a/butl/standard-version.cxx b/butl/standard-version.cxx
index 3e049e2..1952653 100644
--- a/butl/standard-version.cxx
+++ b/butl/standard-version.cxx
@@ -332,6 +332,21 @@ namespace butl
   }
 
   string standard_version::
+  string_project_id () const
+  {
+    std::string r (string_version ());
+
+    if (snapshot ()) // Trailing dot already in id.
+    {
+      r += (snapshot_sn == latest_sn ? "z" :
+            snapshot_id.empty ()     ? to_string (snapshot_sn) :
+            snapshot_id);
+    }
+
+    return r;
+  }
+
+  string standard_version::
   string () const
   {
     std::string r;