xmlTraverse()

in lib/xml.js [432:464]

• 20 lines of code
• 8 McCabe index (conditional complexity)

    xmlTraverse(root, false, function (child) {
        if (child.nodeType === 3 || child.nodeType === 4) {
            // isElementContentWhitespace indicates that this is 'ignorable whitespace',
            // but it's not defined by all browsers, and does not honor xml:space='preserve'
            // in some implementations.
            //
            // If we can't tell either way, we walk up the tree to figure out whether
            // xml:space is set to preserve; otherwise we discard pure-whitespace.
            //
            // For example <a>  <b>1</b></a>. The space between <a> and <b> is usually 'ignorable'.
            var text = xmlNodeValue(child);
            var shouldInclude = whitespaceAlreadyRemoved || !isWhitespace(text);
            if (!shouldInclude) {
                // Walk up the tree to figure out whether we are in xml:space='preserve' context
                // for the cursor (needs to happen only once).
                if (whitespacePreserveContext === undefined) {
                    whitespacePreserveContext = isWhitespacePreserveContext(root);
                }

                shouldInclude = whitespacePreserveContext;
            }

            if (shouldInclude) {
                if (!result) {
                    result = text;
                } else {
                    result += text;
                }
            }
        }
        // Continue traversing?
        return true;
    });