XML patch from Robin Dunn adds -dump_xml and -xmlout <file> for generating XML of post processed parse tree

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@6037 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Source/Modules/main.cxx

@@ -85,14 +85,9 @@ static const char *usage2 = (const char*)"\
      -version        - Print SWIG version number\n\
      -Wall           - Enable all warning messages\n\
      -Wallkw         - Enable keyword warnings for all the supported languages\n\
-     -Werror         - Force to treat warnings as errors\n\
-     -w<list>        - Suppress/add warning messages by code. \n\
-                       Use ',' as separator and the +/- signs as follows \n\
-                                             \n\
-                             -w+321,401,-402 \n\
-                                             \n\
-                       where code 321(+) is added, and 401(no sign) and 402(-) \n\
-                       are suppressed. See documentation for code meanings.\n\
+     -Werror         - Treat warnings as errors\n\
+     -w<list>        - Suppress/add warning messages eg -w401,+321 - see Warnings.html\n\
+     -xmlout <file>  - Write XML version of the parse tree to <file> after normal processing\n\
 \n";
 
 // Local variables
@@ -100,6 +95,7 @@ static int     freeze = 0;
 static String  *lang_config = 0;
 static char    *cpp_extension = (char *) "cxx";
 static String  *outdir = 0;
+static String  *xmlout = 0;
 
 // -----------------------------------------------------------------------------
 // check_suffix(char *name)
@@ -217,6 +213,7 @@ int SWIG_main(int argc, char *argv[], Language *l) {
   int     includecount = 0;
   int     dump_tags = 0;
   int     dump_tree = 0;
+  int     dump_xml = 0;
   int     browse = 0;
   int     dump_typedef = 0;
   int     dump_classes = 0;
@@ -496,6 +493,18 @@ int SWIG_main(int argc, char *argv[], Language *l) {
 	  } else if (strcmp(argv[i],"-dump_tree") == 0) {
 	    dump_tree = 1;
 	    Swig_mark_arg(i);
+	  } else if (strcmp(argv[i],"-dump_xml") == 0) {
+	    dump_xml = 1;
+	    Swig_mark_arg(i);
+	  } else if (strcmp(argv[i],"-xmlout") == 0) {
+	    dump_xml = 1;
+	    Swig_mark_arg(i);
+	    if (argv[i+1]) {
+	      xmlout = NewString(argv[i+1]);	    
+	      Swig_mark_arg(i+1);
+	    } else {
+	      Swig_arg_error();
+	    }
 	  } else if (strcmp(argv[i],"-nocontract") == 0) {
 	    Swig_mark_arg(i);
 	    Swig_contract_mode_set(0);
@@ -748,6 +757,9 @@ int SWIG_main(int argc, char *argv[], Language *l) {
     if (dump_tree) {
       Swig_print_tree(top);
     }
+    if (dump_xml) {
+      Swig_print_xml(top, xmlout);
+    }
   }
   if (tm_debug) Swig_typemap_debug();
   if (memory_debug) DohMemoryDebug();

Source/Modules/xml.cxx

@@ -112,7 +112,7 @@ public:
 		}
 		Printf( out, "<?xml version=\"1.0\" ?> \n" );
 		Xml_print_tree(n);
-    	return SWIG_OK;
+		return SWIG_OK;
   	}
 
 
@@ -198,7 +198,8 @@ public:
 					Replaceall( o, "<", "&lt;" );
 					Replaceall( o, "\"", "&quot;" );
 					Replaceall( o, "\\", "\\\\" );
-					Printf(out,"<attribute name=\"%s\" value=\"%s\" id=\"%ld\" addr=\"%x\" />\n", ck, o, ++id, o );
+                                        Replaceall( o, "\n", "&#10;" );
+                                        Printf(out,"<attribute name=\"%s\" value=\"%s\" id=\"%ld\" addr=\"%x\" />\n", ck, o, ++id, o );
 					Delete(o);
 					Delete(ck);
 				}
@@ -207,7 +208,7 @@ public:
 					o = Getattr(obj,k);
 					String *ck = NewString(k);
 					Replaceall( ck, ":", "_" );
-					Printf(out,"<attribute name=\"%s\" value=\"%x\" id=\"%ld\" addr=\"%x\" />\n", ck, o, ++id, o );
+                                        Printf(out,"<attribute name=\"%s\" value=\"%x\" id=\"%ld\" addr=\"%x\" />\n", ck, o, ++id, o );
 					Delete(ck);
 				}
 			}
@@ -319,9 +320,8 @@ public:
 			print_indent(0);
 			Printf( out, "<%ssitem id=\"%ld\" addr=\"%x\" >\n", markup, ++id, n.item );
 			Xml_print_attributes( n.item );
-			Printf( out, "</%ssitem >\n", markup );
 			print_indent(0);
-			Printf( out, " />\n" );
+			Printf( out, "</%ssitem >\n", markup );
 			n = Next(n);
 		}
 		indent_level -= 4;
@@ -331,6 +331,34 @@ public:
 
 };
 
+/* -----------------------------------------------------------------------------
+ * Swig_print_xml
+ *
+ * Dump an XML version of the parse tree.  This is different from using the -xml
+ * language module normally as it allows the real language module to process the
+ * tree first, possibly stuffing in new attributes, so the XML that is output ends
+ * up being a post-processing version of the tree.
+ * ----------------------------------------------------------------------------- */
+
+void Swig_print_xml(DOH *obj, String* filename)
+{
+    XML xml;
+    xmllite = 1;
+
+    if (! filename) {
+        out = stdout;
+    }
+    else {
+        out = NewFile(filename, "w");
+        if (!out) {
+            Printf(stderr,"*** Can't open '%s'\n", filename);
+            SWIG_exit(EXIT_FAILURE);
+        }
+    }
+    
+    Printf( out, "<?xml version=\"1.0\" ?> \n" );
+    xml.Xml_print_tree(obj);
+}
 
 static Language * new_swig_xml() {
         return new XML();

Source/Swig/swig.h

@@ -359,6 +359,8 @@ extern void Swig_print_tags(File *obj, Node *root);
 extern void Swig_print_tree(Node *obj);
 extern void Swig_print_node(Node *obj);
 
+extern void Swig_print_xml(Node *obj, String* filename);
+
 /* -- Wrapper function Object */
 
 typedef struct {