--- parser3/src/main/pa_exception.C	2002/08/01 11:26:50	1.41
+++ parser3/src/main/pa_exception.C	2020/10/14 21:20:15	1.55
@@ -1,125 +1,57 @@
 /** @file
 	Parser: exception class.
 
-	Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
+	Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)
 	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
 */
 
-static const char* IDENT_EXCEPTION_C="$Id: pa_exception.C,v 1.41 2002/08/01 11:26:50 paf Exp $";
-
 #include "pa_common.h"
 #include "pa_exception.h"
-#include "pa_globals.h"
 #include "pa_sapi.h"
+#include "pa_globals.h"
 
-Exception::Exception() {
-	ftype=0;
-	fproblem_source=0;
-	owns_comment=false; fcomment=0;
-}
-Exception::Exception(const char *atype, 
-					  const String *aproblem_source, 
-					  const char *comment_fmt, ...) {
-	//_asm int 3;
-//__asm__("int3");
-	ftype=atype;
-	fproblem_source=aproblem_source;
-	owns_comment=true;
+volatile const char * IDENT_PA_EXCEPTION_C="$Id: pa_exception.C,v 1.55 2020/10/14 21:20:15 moko Exp $" IDENT_PA_EXCEPTION_H;
 
-	if(comment_fmt) {
-		fcomment=(char *)malloc(MAX_STRING);
-		if(!fcomment)
-			SAPI::die("out of memory in 'Exception::Exception', failed to allocated %u bytes", MAX_STRING);
-		va_list args;
-		va_start(args, comment_fmt);
-		vsnprintf(fcomment, MAX_STRING, comment_fmt, args);
-		va_end(args);
-	} else
-		fcomment=0;
-}
-Exception::Exception(const Exception& src) : 
+// methods
+
+Exception::Exception(): ftype(0), fproblem_source(0), fcomment(0) {}
+
+Exception::Exception(const Exception& src):
 	ftype(src.ftype),
 	fproblem_source(src.fproblem_source),
-	fcomment(src.fcomment),
-	owns_comment(src.owns_comment) {
-	// that ugly string got from STL, along with principal ideal
-	const_cast<Exception *>(&src)->owns_comment=false;
+	fcomment(src.fcomment) {
 }
+
 Exception& Exception::operator =(const Exception& src) {
 	ftype=src.ftype;
 	fproblem_source=src.fproblem_source;
-
-	if(owns_comment)
-		free(fcomment);
 	fcomment=src.fcomment;
-	// that ugly string got from STL, along with principal ideal
-	owns_comment=src.owns_comment;  ((Exception*)&src)->owns_comment=false;
-	
 	return *this;
 }
-Exception::~Exception() {
-	if(owns_comment)
-		free(fcomment);
-}
 
-#ifdef XML
-Exception::Exception(
-	const String *aproblem_source, 
-	GdomeException& exc) :
-	ftype("xml"),
-	fproblem_source(aproblem_source),
-	owns_comment(true) {
-
-	const char *xml_generic_errors=xmlGenericErrors();
-	if(xml_generic_errors || exc) {
-		const char *s;
-		switch((GdomeExceptionCode)exc) {
-		case GDOME_NOEXCEPTION_ERR: s="NOEXCEPTION_ERR"; break;
-		case GDOME_INDEX_SIZE_ERR: s="INDEX_SIZE_ERR"; break;
-		case GDOME_DOMSTRING_SIZE_ERR: s="DOMSTRING_SIZE_ERR"; break;
-		case GDOME_HIERARCHY_REQUEST_ERR: s="HIERARCHY_REQUEST_ERR"; break;
-		case GDOME_WRONG_DOCUMENT_ERR: s="WRONG_DOCUMENT_ERR"; break;
-		case GDOME_INVALID_CHARACTER_ERR: s="INVALID_CHARACTER_ERR"; break;
-		case GDOME_NO_DATA_ALLOWED_ERR: s="NO_DATA_ALLOWED_ERR"; break;
-		case GDOME_NO_MODIFICATION_ALLOWED_ERR: s="NO_MODIFICATION_ALLOWED_ERR"; break;
-		case GDOME_NOT_FOUND_ERR: s="NOT_FOUND_ERR"; break;
-		case GDOME_NOT_SUPPORTED_ERR: s="NOT_SUPPORTED_ERR"; break;
-		case GDOME_INUSE_ATTRIBUTE_ERR: s="INUSE_ATTRIBUTE_ERR"; break;
-		case GDOME_INVALID_STATE_ERR: s="INVALID_STATE_ERR"; break;
-		case GDOME_SYNTAX_ERR: s="SYNTAX_ERR"; break;
-		case GDOME_INVALID_MODIFICATION_ERR: s="INVALID_MODIFICATION_ERR"; break;
-		case GDOME_NAMESPACE_ERR: s="NAMESPACE_ERR"; break;
-		case GDOME_INVALID_ACCESS_ERR: s="INVALID_ACCESS_ERR"; break;
-		case GDOME_NULL_POINTER_ERR: s="NULL_POINTER_ERR"; break;
-		default: s="<UNKNOWN CODE>"; break;
-		}
-		
-		fcomment=(char *)malloc(MAX_STRING);
-		const char *xml_error_message;
-		const char *xml_error_prefix;
-		if(xml_generic_errors) {
-			xml_error_prefix="\n";
-			xml_error_message=xml_generic_errors;
-		} else {
-			xml_error_prefix="";
-			xml_error_message="";
-		}
-		if(exc)
-			snprintf(fcomment, MAX_STRING, 
-				"DOMException %s (%d)."
-				"%s%s", 
-					s,  // decoded code of exception
-					exc, // DOM exception code
-					xml_error_prefix, xml_error_message // xml generic messages accumulated
-			);
-		else // no DOM exception
-			snprintf(fcomment, MAX_STRING, 
-				"%s", 
-					xml_error_message // xml generic messages accumulated
-			);
-		if(xml_generic_errors)
-			free((void *)xml_generic_errors);
+Exception::Exception(const char* atype, const String* aproblem_source, const char* comment_fmt, ...) {
+	ftype=atype;
+	fproblem_source=aproblem_source ? new String(*aproblem_source) : 0;
+
+	if(comment_fmt) {
+		char comment[MAX_STRING];
+		va_list args;
+		va_start(args, comment_fmt);
+		fcomment=pa_strdup(comment, vsnprintf(comment, MAX_STRING, comment_fmt, args));
+		va_end(args);
 	} else
 		fcomment=0;
 }
-#endif
+
+void Exception::add_comment(const char* acomment) {
+	if(fcomment && acomment){
+		char *comment=new(PointerFreeGC) char[strlen(fcomment) + strlen(acomment) + 1];
+		strcpy(comment, fcomment);
+		strcat(comment, acomment);
+		fcomment=comment;
+	}
+}
+
+const String* Exception::problem_source() const {
+	return fproblem_source && !fproblem_source->is_empty() ? fproblem_source : 0;
+}