94 lines
2.7 KiB
JavaScript
94 lines
2.7 KiB
JavaScript
var HTMLMixedParser = Editor.Parser = (function() {
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// tags that trigger seperate parsers
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var triggers = {
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"script": "JSParser",
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"style": "CSSParser"
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};
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function checkDependencies() {
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var parsers = ['XMLParser'];
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for (var p in triggers) parsers.push(triggers[p]);
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for (var i in parsers) {
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if (!window[parsers[i]]) throw new Error(parsers[i] + " parser must be loaded for HTML mixed mode to work.");
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}
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XMLParser.configure({useHTMLKludges: true});
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}
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function parseMixed(stream) {
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checkDependencies();
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var htmlParser = XMLParser.make(stream), localParser = null, inTag = false;
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var iter = {next: top, copy: copy};
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function top() {
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var token = htmlParser.next();
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if (token.content == "<")
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inTag = true;
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else if (token.style == "xml-tagname" && inTag === true)
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inTag = token.content.toLowerCase();
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else if (token.content == ">") {
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if (triggers[inTag]) {
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var parser = window[triggers[inTag]];
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iter.next = local(parser, "</" + inTag);
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}
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inTag = false;
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}
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return token;
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}
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function local(parser, tag) {
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var baseIndent = htmlParser.indentation();
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localParser = parser.make(stream, baseIndent + indentUnit);
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return function() {
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if (stream.lookAhead(tag, false, false, true)) {
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localParser = null;
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iter.next = top;
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return top();
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}
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var token = localParser.next();
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var lt = token.value.lastIndexOf("<"), sz = Math.min(token.value.length - lt, tag.length);
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if (lt != -1 && token.value.slice(lt, lt + sz).toLowerCase() == tag.slice(0, sz) &&
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stream.lookAhead(tag.slice(sz), false, false, true)) {
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stream.push(token.value.slice(lt));
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token.value = token.value.slice(0, lt);
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}
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if (token.indentation) {
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var oldIndent = token.indentation;
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token.indentation = function(chars) {
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if (chars == "</")
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return baseIndent;
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else
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return oldIndent(chars);
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};
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}
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return token;
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};
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}
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function copy() {
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var _html = htmlParser.copy(), _local = localParser && localParser.copy(),
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_next = iter.next, _inTag = inTag;
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return function(_stream) {
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stream = _stream;
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htmlParser = _html(_stream);
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localParser = _local && _local(_stream);
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iter.next = _next;
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inTag = _inTag;
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return iter;
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};
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}
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return iter;
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}
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return {
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make: parseMixed,
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electricChars: "{}/:",
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configure: function(obj) {
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if (obj.triggers) triggers = obj.triggers;
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}
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};
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})();
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