+// xex.js -- Xex (XML Expression) interpreter
+// Copyright (C) 2010
+// National Institute of Advanced Industrial Science and Technology (AIST)
+// Registration Number H15PRO112
+
+// This file is part of the m17n database; a sub-part of the m17n
+// library.
+
+// The m17n library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public License
+// as published by the Free Software Foundation; either version 2.1 of
+// the License, or (at your option) any later version.
+
+// The m17n library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+
+// You should have received a copy of the GNU Lesser General Public
+// License along with the m17n library; if not, write to the Free
+// Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+// Boston, MA 02110-1301, USA.
+
+var Xex = {};
+
+(function () { // Tracing
+ // The logging node containing tracing information.
+ var log = null;
+ // Number of lines.
+ var lines;
+ // Style properties of the logging node.
+ var styles = { border: '1px solid black',
+ font: 'normal normal normal small monospace',
+ width: '100%',
+ minHeight: '300px',
+ maxHeight: '300px',
+ overflow: 'auto' };
+
+ // Toggle logging on and off. PARENT if non-null specifies the
+ // parent of the log node. The log node is appended to the parent.
+ // If PARENT is null, 'body' node is assumed.
+ Xex.LogToggle = function (parent)
+ {
+ if (log)
+ {
+ log.parentNode.removeChild (log);
+ log = null;
+ return;
+ }
+ if (! parent)
+ parent = document.getElementsByTagName ('body')[0];
+ log = document.createElement ('ol');
+ for (var prop in styles)
+ log.style[prop] = styles[prop];
+ parent.appendChild (log);
+ lines = 0;
+ return log;
+ }