php.js
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Created: Mon, Aug 4, 5:54 AM

php.js
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	(function() {
	function keywords(str) {
	var obj = {}, words = str.split(" ");
	for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
	return obj;
	}
	function heredoc(delim) {
	return function(stream, state) {
	if (stream.match(delim)) state.tokenize = null;
	else stream.skipToEnd();
	return "string";
	}
	}
	var phpConfig = {
	name: "clike",
	keywords: keywords("abstract and array as break case catch class clone const continue declare default " +
	"do else elseif enddeclare endfor endforeach endif endswitch endwhile extends final " +
	"for foreach function global goto if implements interface instanceof namespace " +
	"new or private protected public static switch throw trait try use var while xor " +
	"die echo empty exit eval include include_once isset list require require_once return " +
	"print unset __halt_compiler self static parent"),
	blockKeywords: keywords("catch do else elseif for foreach if switch try while"),
	atoms: keywords("true false null TRUE FALSE NULL"),
	multiLineStrings: true,
	hooks: {
	"$": function(stream, state) {
	stream.eatWhile(/[\w\$_]/);
	return "variable-2";
	},
	"<": function(stream, state) {
	if (stream.match(/<</)) {
	stream.eatWhile(/[\w\.]/);
	state.tokenize = heredoc(stream.current().slice(3));
	return state.tokenize(stream, state);
	}
	return false;
	},
	"#": function(stream, state) {
	while (!stream.eol() && !stream.match("?>", false)) stream.next();
	return "comment";
	},
	"/": function(stream, state) {
	if (stream.eat("/")) {
	while (!stream.eol() && !stream.match("?>", false)) stream.next();
	return "comment";
	}
	return false;
	}
	}
	};

	CodeMirror.defineMode("php", function(config, parserConfig) {
	var htmlMode = CodeMirror.getMode(config, {name: "xml", htmlMode: true});
	var jsMode = CodeMirror.getMode(config, "javascript");
	var cssMode = CodeMirror.getMode(config, "css");
	var phpMode = CodeMirror.getMode(config, phpConfig);

	function dispatch(stream, state) { // TODO open PHP inside text/css
	var isPHP = state.mode == "php";
	if (stream.sol() && state.pending != '"') state.pending = null;
	if (state.curMode == htmlMode) {
	if (stream.match(/^<\?\w*/)) {
	state.curMode = phpMode;
	state.curState = state.php;
	state.curClose = "?>";
	state.mode = "php";
	return "meta";
	}
	if (state.pending == '"') {
	while (!stream.eol() && stream.next() != '"') {}
	var style = "string";
	} else if (state.pending && stream.pos < state.pending.end) {
	stream.pos = state.pending.end;
	var style = state.pending.style;
	} else {
	var style = htmlMode.token(stream, state.curState);
	}
	state.pending = null;
	var cur = stream.current(), openPHP = cur.search(/<\?/);
	if (openPHP != -1) {
	if (style == "string" && /\"$/.test(cur) && !/\?>/.test(cur)) state.pending = '"';
	else state.pending = {end: stream.pos, style: style};
	stream.backUp(cur.length - openPHP);
	} else if (style == "tag" && stream.current() == ">" && state.curState.context) {
	if (/^script$/i.test(state.curState.context.tagName)) {
	state.curMode = jsMode;
	state.curState = jsMode.startState(htmlMode.indent(state.curState, ""));
	state.curClose = /^<\/\sscript\s>/i;
	state.mode = "javascript";
	}
	else if (/^style$/i.test(state.curState.context.tagName)) {
	state.curMode = cssMode;
	state.curState = cssMode.startState(htmlMode.indent(state.curState, ""));
	state.curClose = /^<\/\sstyle\s>/i;
	state.mode = "css";
	}
	}
	return style;
	} else if ((!isPHP \|\| state.php.tokenize == null) &&
	stream.match(state.curClose, isPHP)) {
	state.curMode = htmlMode;
	state.curState = state.html;
	state.curClose = null;
	state.mode = "html";
	if (isPHP) return "meta";
	else return dispatch(stream, state);
	} else {
	return state.curMode.token(stream, state.curState);
	}
	}

	return {
	startState: function() {
	var html = htmlMode.startState();
	return {html: html,
	php: phpMode.startState(),
	curMode: parserConfig.startOpen ? phpMode : htmlMode,
	curState: parserConfig.startOpen ? phpMode.startState() : html,
	curClose: parserConfig.startOpen ? /^\?>/ : null,
	mode: parserConfig.startOpen ? "php" : "html",
	pending: null}
	},

	copyState: function(state) {
	var html = state.html, htmlNew = CodeMirror.copyState(htmlMode, html),
	php = state.php, phpNew = CodeMirror.copyState(phpMode, php), cur;
	if (state.curState == html) cur = htmlNew;
	else if (state.curState == php) cur = phpNew;
	else cur = CodeMirror.copyState(state.curMode, state.curState);
	return {html: htmlNew, php: phpNew, curMode: state.curMode, curState: cur,
	curClose: state.curClose, mode: state.mode,
	pending: state.pending};
	},

	token: dispatch,

	indent: function(state, textAfter) {
	if ((state.curMode != phpMode && /^\s*<\//.test(textAfter)) \|\|
	(state.curMode == phpMode && /^\?>/.test(textAfter)))
	return htmlMode.indent(state.html, textAfter);
	return state.curMode.indent(state.curState, textAfter);
	},

	electricChars: "/{}:"
	}
	}, "xml", "clike", "javascript", "css");
	CodeMirror.defineMIME("application/x-httpd-php", "php");
	CodeMirror.defineMIME("application/x-httpd-php-open", {name: "php", startOpen: true});
	CodeMirror.defineMIME("text/x-php", phpConfig);
	})();

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