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"use strict";
// Helper function to produce an XML tag.
var tag = function(name, attrs, selfclosing) {
var result = '<' + name;
if (attrs && attrs.length > 0) {
var i = 0;
var attrib;
while ((attrib = attrs[i]) !== undefined) {
result = result.concat(' ', attrib[0], '="', attrib[1], '"');
i++;
}
}
if (selfclosing) {
result += ' /';
}
result += '>';
return result;
};
var reXMLTag = /\<[^>]*\>/;
var renderNodes = function(block) {
var attrs;
var info_words;
var tagname;
var walker = block.walker();
var event, node, entering;
var buffer = "";
var lastOut = "\n";
var disableTags = 0;
var indentLevel = 0;
var indent = ' ';
var grandparent;
var unescapedContents;
var container;
var selfClosing;
var out = function(s) {
if (disableTags > 0) {
buffer += s.replace(reXMLTag, '');
} else {
buffer += s;
}
lastOut = s;
};
var esc = this.escape;
var cr = function() {
if (lastOut !== '\n') {
buffer += '\n';
lastOut = '\n';
for (var i = indentLevel; i--;) {
buffer += indent;
}
}
};
var options = this.options;
if (options.time) { console.time("rendering"); }
while ((event = walker.next())) {
entering = event.entering;
node = event.node;
container = node.isContainer();
selfClosing = node.t === 'HorizontalRule' || node.t === 'Hardbreak' ||
node.t === 'Softbreak' || node.t === 'Image';
unescapedContents = node.t === 'Html' || node.t === 'HtmlInline';
tagname = node.t.toLowerCase();
attrs = [];
if (options.sourcepos) {
var pos = node.sourcepos;
if (pos) {
attrs.push(['data-sourcepos', String(pos[0][0]) + ':' +
String(pos[0][1]) + '-' + String(pos[1][0]) + ':' +
String(pos[1][1])]);
}
}
if (entering) {
cr();
out(tag(tagname, attrs, selfClosing));
if (container) {
indentLevel += 1;
} else if (!container && !selfClosing) {
if (node.literal) {
out(unescapedContents ? node.literal : esc(node.literal));
}
out(tag('/' + tagname));
}
} else {
indentLevel -= 1;
cr();
out(tag('/' + tagname));
}
}
if (options.time) { console.timeEnd("rendering"); }
return buffer;
};
var replaceUnsafeChar = function(s) {
switch (s) {
case '&':
return '&';
case '<':
return '<';
case '>':
return '>';
case '"':
return '"';
default:
return s;
}
};
var reNeedsEscaping = /[&<>"]/;
// The XmlRenderer object.
function XmlRenderer(options){
return {
// default options:
softbreak: '\n', // by default, soft breaks are rendered as newlines in HTML
// set to "<br />" to make them hard breaks
// set to " " if you want to ignore line wrapping in source
escape: function(s, preserve_entities) {
if (reNeedsEscaping.test(s)) {
if (preserve_entities) {
return s.replace(/[&](?:[#](x[a-f0-9]{1,8}|[0-9]{1,8});|[a-z][a-z0-9]{1,31};)|[&<>"]/gi, replaceUnsafeChar);
} else {
return s.replace(/[&<>"]/g, replaceUnsafeChar);
}
} else {
return s;
}
},
options: options || {},
render: renderNodes
};
}
module.exports = XmlRenderer;
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