added: SLog class -- session logger

messages are displayed in the browser (with locales)
changed: MountParser
         now if there is an error in a line -- the line is simply skipped
         


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@741 e52654a7-88a9-db11-a3e9-0013d4bc506e

templates/slog.cpp

@@ -0,0 +1,133 @@
+/*
+ * This file is a part of Winix
+ * and is not publicly distributed
+ * 
+ * Copyright (c) 2011, Tomasz Sowa
+ * All rights reserved.
+ * 
+ */
+ 
+#include "core/slog.h"
+#include "templates.h"
+
+
+
+namespace TemplatesFunctions
+{
+static size_t slog_index = 0;
+static LogManipulators slog_last_type;
+
+
+
+bool slog_is()
+{
+	if( !cur->session )
+		return false;
+
+return slog_index < cur->session->log_buffer.Size();
+}
+
+
+void slog_skipline()
+{
+	if( !cur->session )
+		return;
+
+	TextStream<std::wstring> & buf = cur->session->log_buffer;
+
+	while( slog_index < buf.Size() && buf[slog_index]!=10 )
+		slog_index += 1;
+
+	if( slog_index < buf.Size() )
+		slog_index += 1; // skipping the '\n'
+}
+
+
+void slog_settype()
+{
+	if( !slog_is() )
+		return;
+
+	TextStream<std::wstring> & buf = cur->session->log_buffer;
+	slog_last_type = static_cast<LogManipulators>(buf[slog_index]);
+
+	switch( slog_last_type )
+	{
+	case loginfo:
+	case logwarning:
+	case logerror:
+		slog_index += 1;
+		break;
+
+	default:
+		slog_last_type = loginfo;
+	}
+}
+
+
+void slog_tab(Info & i)
+{
+	if( i.iter == 0 )
+		slog_index = 0;
+	else
+		slog_skipline();
+
+	// the type is written as the first character (after '\n' or at the beginning of the string)
+	slog_settype();
+
+	i.res = slog_is();
+
+	if( cur->session && !i.res )
+		cur->session->log_buffer.Clear(); // the session log has been printed
+}
+
+
+void slog_tab_is_info(Info & i)
+{
+	if( !slog_is() )
+		return;
+
+	i.res = (slog_last_type == loginfo);
+}
+
+
+void slog_tab_is_warning(Info & i)
+{
+	if( !slog_is() )
+		return;
+
+	i.res = (slog_last_type == logwarning);
+}
+
+
+void slog_tab_is_error(Info & i)
+{
+	if( !slog_is() )
+		return;
+
+	i.res = (slog_last_type == logerror);
+}
+
+
+void slog_tab_print(Info & i)
+{
+	if( !slog_is() )
+		return;
+
+	TextStream<std::wstring> & buf = cur->session->log_buffer;
+
+	while( slog_index < buf.Size() && buf[slog_index]!=10 )
+	{
+		i.out << buf[slog_index];
+		slog_index += 1;
+	}
+
+	// don't skip the last '\n' here
+}
+
+
+
+
+
+} // namespace TemplatesFunctions
+