New upstream version 4.2.0upstream/4.2.0upstream

2 files changed, 435 insertions, 0 deletions

diff --git a/xsd/processing/cardinality/processor.cxx b/xsd/processing/cardinality/processor.cxx
new file mode 100644
index 0000000..c8c5dc5
--- /dev/null
+++ b/xsd/processing/cardinality/processor.cxx
@@ -0,0 +1,407 @@
+// file      : xsd/processing/cardinality/processor.cxx
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#include <map>
+
+#include <libxsd-frontend/semantic-graph.hxx>
+#include <libxsd-frontend/traversal.hxx>
+
+#include <xsd/elements.hxx>
+
+#include <xsd/processing/cardinality/processor.hxx>
+
+using namespace std;
+
+namespace Processing
+{
+  namespace SemanticGraph = XSDFrontend::SemanticGraph;
+  namespace Traversal = XSDFrontend::Traversal;
+
+  namespace Cardinality
+  {
+    namespace
+    {
+      //
+      //
+      struct ElementInfo
+      {
+        ElementInfo ()
+            : min (0), max (0), e_ (0)
+        {
+        }
+
+        ElementInfo (SemanticGraph::Element& e)
+            : min (1), max (1), e_ (&e)
+        {
+        }
+
+        ElementInfo (SemanticGraph::Element& e, size_t min_, size_t max_)
+            : min (min_), max (max_), e_ (&e)
+        {
+        }
+
+        SemanticGraph::Element&
+        element ()
+        {
+          assert (e_ != 0);
+          return *e_;
+        }
+
+      public:
+        size_t min, max;
+
+      private:
+        SemanticGraph::Element* e_;
+      };
+
+      typedef map<String, ElementInfo> ElementInfoMap;
+
+      //
+      //
+      struct AnyInfo
+      {
+        AnyInfo ()
+            : min (0), max (0), a_ (0)
+        {
+        }
+
+        AnyInfo (SemanticGraph::Any& a)
+            : min (1), max (1), a_ (&a)
+        {
+        }
+
+        AnyInfo (SemanticGraph::Any& a, size_t min_, size_t max_)
+            : min (min_), max (max_), a_ (&a)
+        {
+        }
+
+        SemanticGraph::Any&
+        any ()
+        {
+          assert (a_ != 0);
+          return *a_;
+        }
+
+      public:
+        size_t min, max;
+
+      private:
+        SemanticGraph::Any* a_;
+      };
+
+      typedef map<String, AnyInfo> AnyInfoMap;
+
+      //
+      //
+      struct Particle: Traversal::All,
+                       Traversal::Choice,
+                       Traversal::Sequence,
+                       Traversal::Element,
+                       Traversal::Any
+      {
+        virtual void
+        traverse (SemanticGraph::All& a)
+        {
+          traverse_sequence (a);
+        }
+
+        virtual void
+        traverse (SemanticGraph::Choice& c)
+        {
+          using SemanticGraph::Compositor;
+
+          // Go over all particles we contain and add them to the map.
+          //
+          for (Compositor::ContainsIterator ci (c.contains_begin ());
+               ci != c.contains_end (); ++ci)
+          {
+            Particle t;
+            t.dispatch (ci->particle ());
+
+            // Handle elements.
+            //
+            if (ci == c.contains_begin ())
+              el_map = t.el_map; // First arm.
+            else
+            {
+              // For elements that are in the map but not in this
+              // arm of choice, we need to set min to 0 while for
+              // those that are we need to choose minimum between
+              // the two for min and maximum for max.
+              //
+              for (ElementInfoMap::iterator i (el_map.begin ());
+                   i != el_map.end (); ++i)
+              {
+                String const& name (i->first);
+                ElementInfo& ei (i->second);
+
+                ElementInfoMap::iterator j (t.el_map.find (name));
+
+                if (j == t.el_map.end ())
+                  ei.min = 0;
+                else
+                {
+                  ei.min = j->second.min < ei.min ? j->second.min : ei.min;
+
+                  // Unbounded is encoded as 0.
+                  //
+                  if (j->second.max == 0 || ei.max == 0)
+                    ei.max = 0;
+                  else
+                    ei.max = j->second.max > ei.max ? j->second.max : ei.max;
+                }
+              }
+
+              // Now elements that are in this arm of choice but are
+              // not in the map, we need to add to the map and set their
+              // min to 0.
+              //
+              for (ElementInfoMap::iterator i (t.el_map.begin ());
+                   i != t.el_map.end (); ++i)
+              {
+                String const& name (i->first);
+                ElementInfo& ei (i->second);
+
+                ElementInfoMap::iterator j (el_map.find (name));
+
+                if (j == el_map.end ())
+                  el_map[name] = ElementInfo (ei.element (), 0, ei.max);
+              }
+            }
+
+            // Handle wildcards. Since each wildcard is treated as unique,
+            // we need to copy them from each arm of choice and set min to
+            // 0.
+            //
+            for (AnyInfoMap::iterator i (t.any_map.begin ());
+                 i != t.any_map.end (); ++i)
+            {
+              String const& name (i->first);
+              AnyInfo& ai (i->second);
+
+              assert (any_map.find (name) == any_map.end ());
+
+              any_map[name] = AnyInfo (ai.any (), 0, ai.max);
+            }
+          }
+
+          // Choice's min and max.
+          //
+          size_t cmin (c.min ()), cmax (c.max ());
+
+          // Iterate over elements and wildcards in the maps and multiply
+          // their cardinality by cmin and cmax.
+          //
+          for (ElementInfoMap::iterator i (el_map.begin ());
+               i != el_map.end (); ++i)
+          {
+            i->second.min *= cmin;
+            i->second.max *= cmax;
+          }
+
+          for (AnyInfoMap::iterator i (any_map.begin ());
+               i != any_map.end (); ++i)
+          {
+            i->second.min *= cmin; // Not really necessary since min == 0.
+            i->second.max *= cmax;
+          }
+        }
+
+        virtual void
+        traverse (SemanticGraph::Sequence& s)
+        {
+          traverse_sequence (s);
+        }
+
+        void
+        traverse_sequence (SemanticGraph::Compositor& c)
+        {
+          using SemanticGraph::Compositor;
+
+          // Sequence's min and max.
+          //
+          size_t smin (c.min ()), smax (c.max ());
+
+          // Go over all particles we contain and add them to the map.
+          //
+          for (Compositor::ContainsIterator ci (c.contains_begin ());
+               ci != c.contains_end (); ++ci)
+          {
+            Particle t;
+            t.dispatch (ci->particle ());
+
+            // Handle elements.
+            //
+            for (ElementInfoMap::iterator i (t.el_map.begin ());
+                 i != t.el_map.end (); ++i)
+            {
+              String const& name (i->first);
+              ElementInfo& ei (i->second);
+              size_t min (ei.min * smin);
+              size_t max (ei.max * smax);
+              ElementInfoMap::iterator j (el_map.find (name));
+
+              if (j != el_map.end ())
+              {
+                // Add i's cardinality to j
+                //
+                j->second.min += min;
+                j->second.max = (j->second.max == 0 || max == 0) ?
+                  0 : (j->second.max + max);
+              }
+              else
+                el_map[name] = ElementInfo (ei.element (), min, max);
+            }
+
+            // Handle wildcards.
+            //
+            for (AnyInfoMap::iterator i (t.any_map.begin ());
+                 i != t.any_map.end (); ++i)
+            {
+              String const& name (i->first);
+              AnyInfo& ai (i->second);
+              size_t min (ai.min * smin);
+              size_t max (ai.max * smax);
+
+              assert (any_map.find (name) == any_map.end ());
+
+              any_map[name] = AnyInfo (ai.any (), min, max);
+            }
+          }
+        }
+
+        virtual void
+        traverse (SemanticGraph::Element& e)
+        {
+          SemanticGraph::ContainsParticle& cp (e.contained_particle ());
+
+          String name (e.qualified_p ()
+                       ? e.namespace_ ().name () + L" " + e.name ()
+                       : e.name ());
+
+          el_map[name] = ElementInfo (e, cp.min (), cp.max ());
+        }
+
+        virtual void
+        traverse (SemanticGraph::Any& a)
+        {
+          SemanticGraph::ContainsParticle& cp (a.contained_particle ());
+
+          any_map[a.name ()] = AnyInfo (a, cp.min (), cp.max ());
+        }
+
+      public:
+        AnyInfoMap any_map;
+        ElementInfoMap el_map;
+      };
+
+
+      //
+      //
+      struct Complex: Traversal::Complex
+      {
+        virtual void
+        traverse (Type& c)
+        {
+          if (c.contains_compositor_p ())
+          {
+            Particle t;
+            t.dispatch (c.contains_compositor ().compositor ());
+
+            for (ElementInfoMap::iterator i (t.el_map.begin ());
+                 i != t.el_map.end (); ++i)
+            {
+              ElementInfo& ei (i->second);
+              SemanticGraph::Context& ctx (ei.element ().context ());
+
+              ctx.set ("min", ei.min);
+              ctx.set ("max", ei.max);
+            }
+
+            for (AnyInfoMap::iterator i (t.any_map.begin ());
+                 i != t.any_map.end (); ++i)
+            {
+              AnyInfo& ai (i->second);
+              SemanticGraph::Context& ctx (ai.any ().context ());
+
+              ctx.set ("min", ai.min);
+              ctx.set ("max", ai.max);
+            }
+          }
+
+          // Traverse attributes and anonymous types (via elements).
+          //
+          Complex::names (c);
+        }
+      };
+
+
+      //
+      //
+      struct Attribute: Traversal::Attribute
+      {
+        virtual void
+        traverse (Type& a)
+        {
+          SemanticGraph::Context& ctx (a.context ());
+
+          ctx.set ("min", size_t (a.optional_p () ? 0 : 1));
+          ctx.set ("max", size_t (1));
+        }
+      };
+
+      // Go into implied/included/imported schemas while making sure
+      // we don't process the same stuff more than once.
+      //
+      struct Uses: Traversal::Uses
+      {
+        virtual void
+        traverse (Type& u)
+        {
+          SemanticGraph::Schema& s (u.schema ());
+
+          if (!s.context ().count ("processing-cardinality-seen"))
+          {
+            s.context ().set ("processing-cardinality-seen", true);
+            Traversal::Uses::traverse (u);
+          }
+        }
+      };
+    }
+
+    void Processor::
+    process (SemanticGraph::Schema& tu, SemanticGraph::Path const&)
+    {
+      Traversal::Schema schema;
+      Uses uses;
+
+      schema >> uses >> schema;
+
+      Traversal::Names schema_names;
+      Traversal::Namespace ns;
+      Traversal::Names ns_names;
+
+      schema >> schema_names >> ns >> ns_names;
+
+      Complex complex_type;
+      AnonymousBase anonymous (complex_type);
+
+      ns_names >> complex_type;
+      ns_names >> anonymous;
+
+      Attribute attribute;
+      Traversal::Names names;
+
+      complex_type >> names;
+
+      names >> attribute;
+      names >> anonymous;
+
+      // Some twisted schemas do recusive inclusions.
+      //
+      tu.context ().set ("processing-cardinality-seen", true);
+
+      schema.dispatch (tu);
+    }
+  }
+}
diff --git a/xsd/processing/cardinality/processor.hxx b/xsd/processing/cardinality/processor.hxx
new file mode 100644
index 0000000..93a85fb
--- /dev/null
+++ b/xsd/processing/cardinality/processor.hxx
@@ -0,0 +1,28 @@
+// file      : xsd/processing/cardinality/processor.hxx
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef XSD_PROCESSING_CARDINALITY_PROCESSOR_HXX
+#define XSD_PROCESSING_CARDINALITY_PROCESSOR_HXX
+
+#include <libxsd-frontend/semantic-graph/elements.hxx> // Path
+#include <libxsd-frontend/semantic-graph/schema.hxx>
+
+#include <xsd/types.hxx>
+
+namespace Processing
+{
+  namespace Cardinality
+  {
+    class Processor
+    {
+    public:
+      struct Failed {};
+
+      void
+      process (XSDFrontend::SemanticGraph::Schema&,
+               XSDFrontend::SemanticGraph::Path const& file);
+    };
+  }
+}
+
+#endif // XSD_PROCESSING_CARDINALITY_PROCESSOR_HXX