Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtinfo/DtMmdb/StyleSheet/feature.C

@@ -0,0 +1,134 @@
+// $XConsortium: feature.cc /main/3 1996/06/11 17:10:23 cde-hal $
+#include "StyleSheetExceptions.h"
+#include "SymTab.h"
+#include "Feature.h"
+#include "FeatureValue.h"
+#include "StyleSheet.h"
+
+
+
+
+#include <stdlib.h>
+
+void
+styleerror(char *errorstr)
+{
+  cerr << "Parse Error: " << errorstr << endl;
+}
+
+main(int argc, char **argv)
+{
+  INIT_EXCEPTIONS();
+
+  Stack<FeatureSet*,dlist_array<FeatureSet> > *stack;
+  Stack<FeatureSet*,dlist_array<FeatureSet> > stack1 ;
+  Stack<FeatureSet*,dlist_array<FeatureSet> > stack2 ;
+
+  stack1.push(new FeatureSet());
+  stack2.push(new FeatureSet());
+
+  stack = &stack1 ;
+
+  StyleSheet ss ;
+
+  // make sure args are balanced 
+
+  /*
+  if (!(argc & 1))
+    cout << "feature  [<name> <value>]+" << endl;
+    */
+
+  for (int i = 1 ; i < argc ; )
+    {
+      switch (argv[i][0])
+	{
+	case '-':
+	  // start a new feature set
+	  stack = &stack2 ;
+	  i++ ;
+	  break;
+	case '{':
+	  {
+	    i++ ;
+	    FeatureSet *newset = new FeatureSet();
+	    stack->top()->add(new Feature(gSymTab->intern(argv[i++]),
+					  new FeatureValueFeatureSet(newset)));
+	    stack->push(newset);
+	  }
+	  break;
+	  
+	case '}':
+	  stack->pop();
+	  i++;
+	  break;
+
+	default:
+	  {
+	    char c = argv[i+1][0] ;
+	    FeatureValue *value = 0; 
+
+	    if (c >= '0' && c <= '9')
+	      value = new FeatureValueInt(atoi(argv[i+1]));
+	    else if ( c == '\'')
+	      value = new FeatureValueSymbol(gSymTab->intern(argv[i+1]));
+	    else
+	      value = new FeatureValueString(argv[i+1]);
+
+	    stack->top()->add(new Feature(gSymTab->intern(argv[i++]),
+					  value));
+	    i++;
+	  }
+	  break;
+	}
+    }
+
+  cout << "************** orig ****************" << endl;
+  cout << *stack1.top() << endl;
+  cout << "************** copy ****************" << endl;
+
+  FeatureSet *copy = new FeatureSet(*stack1.top());
+
+  cout << *copy << endl;
+  delete copy;
+
+  // now test merge 
+
+  FeatureSet *merged = new FeatureSet(*stack1.top(), *stack2.top());
+		      
+  // delete these and check for memory leaks
+  delete stack1.pop();
+  delete stack2.pop();
+
+  cout << "************** merged ****************" << endl;
+  cout << *merged << endl;
+
+
+  try {
+    const Feature *f = merged->deep_lookup("font", "size", 0);
+    cout << "deep_lookup(\"font\", \"size\"): " ;
+    if (f)
+      cout << *f << endl;
+    else
+      cout << "(nil)" << endl;
+    
+    // now try it with Symbols 
+    Symbol font (gSymTab->intern("font"));
+    Symbol size (gSymTab->intern("size"));
+    f = merged->deep_lookup(&font,
+			    &size, 0);
+    cout << "deep_lookup(\"font\", \"size\"): " ;
+    if (f)
+      cout << *f << endl;
+    else
+      cout << "(nil)" << endl;
+    
+  }
+  catch_any()
+    {
+      cout << "exception thrown" << endl;
+    }
+  end_try;
+
+  delete merged ;
+
+}