david
/
chess-io


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260126112621263126412651266126712681269127012711272127312741275127612771278127912801281128212831284128512861287128812891290129112921293129412951296129712981299130013011302130313041305130613071308130913101311131213131314131513161317131813191320132113221323132413251326132713281329133013311332133313341335133613371338133913401341134213431344134513461347134813491350135113521353135413551356135713581359136013611362136313641365136613671368136913701371137213731374137513761377137813791380138113821383138413851386138713881389139013911392139313941395139613971398139914001401140214031404140514061407140814091410141114121413141414151416141714181419142014211422142314241425142614271428142914301431143214331434143514361437143814391440144114421443144414451446144714481449145014511452145314541455145614571458145914601461146214631464146514661467146814691470147114721473147414751476147714781479148014811482148314841485148614871488148914901491149214931494149514961497149814991500150115021503150415051506150715081509151015111512151315141515151615171518151915201521152215231524152515261527152815291530153115321533153415351536153715381539154015411542154315441545154615471548154915501551155215531554155515561557155815591560156115621563156415651566156715681569157015711572157315741575157615771578157915801581158215831584158515861587158815891590159115921593159415951596159715981599160016011602160316041605160616071608160916101611161216131614161516161617161816191620162116221623162416251626162716281629163016311632163316341635163616371638163916401641164216431644164516461647164816491650165116521653165416551656165716581659166016611662166316641665166616671668166916701671167216731674167516761677167816791680168116821683168416851686168716881689169016911692169316941695169616971698169917001701170217031704170517061707170817091710171117121713171417151716171717181719172017211722172317241725172617271728172917301731173217331734173517361737173817391740174117421743174417451746174717481749175017511752175317541755175617571758175917601761176217631764176517661767176817691770177117721773177417751776177717781779178017811782178317841785178617871788178917901791179217931794179517961797179817991800180118021803180418051806180718081809181018111812181318141815181618171818181918201821182218231824182518261827182818291830183118321833183418351836183718381839184018411842184318441845184618471848184918501851185218531854185518561857185818591860186118621863186418651866186718681869187018711872187318741875187618771878187918801881188218831884188518861887188818891890189118921893189418951896189718981899190019011902190319041905190619071908190919101911191219131914191519161917191819191920192119221923192419251926192719281929193019311932193319341935193619371938193919401941194219431944194519461947194819491950195119521953195419551956195719581959196019611962196319641965196619671968196919701971197219731974197519761977197819791980198119821983198419851986198719881989199019911992199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025202620272028202920302031203220332034203520362037203820392040204120422043204420452046204720482049205020512052205320542055205620572058205920602061206220632064206520662067206820692070207120722073207420752076207720782079208020812082208320842085208620872088208920902091209220932094209520962097209820992100210121022103210421052106210721082109211021112112211321142115211621172118211921202121212221232124212521262127212821292130213121322133213421352136213721382139214021412142214321442145214621472148214921502151215221532154215521562157215821592160216121622163216421652166216721682169217021712172217321742175217621772178217921802181218221832184218521862187218821892190219121922193219421952196219721982199220022012202220322042205220622072208220922102211221222132214221522162217221822192220222122222223222422252226222722282229223022312232223322342235223622372238223922402241224222432244224522462247224822492250225122522253225422552256225722582259226022612262226322642265226622672268226922702271227222732274227522762277227822792280228122822283228422852286228722882289229022912292229322942295229622972298229923002301230223032304230523062307230823092310231123122313231423152316231723182319232023212322232323242325232623272328232923302331233223332334233523362337233823392340234123422343234423452346234723482349235023512352235323542355235623572358235923602361236223632364236523662367236823692370237123722373237423752376237723782379238023812382238323842385238623872388238923902391239223932394239523962397239823992400240124022403240424052406240724082409241024112412241324142415241624172418241924202421242224232424242524262427242824292430243124322433243424352436243724382439244024412442244324442445244624472448244924502451245224532454245524562457245824592460246124622463246424652466246724682469247024712472247324742475247624772478247924802481248224832484248524862487248824892490249124922493249424952496249724982499250025012502250325042505250625072508250925102511251225132514251525162517251825192520252125222523252425252526252725282529253025312532253325342535253625372538253925402541254225432544254525462547254825492550255125522553255425552556255725582559256025612562256325642565256625672568256925702571257225732574257525762577257825792580258125822583258425852586258725882589259025912592259325942595259625972598259926002601260226032604260526062607260826092610261126122613261426152616261726182619262026212622262326242625262626272628262926302631263226332634263526362637263826392640264126422643264426452646264726482649265026512652265326542655265626572658265926602661266226632664266526662667266826692670267126722673267426752676267726782679268026812682268326842685268626872688268926902691269226932694269526962697269826992700270127022703270427052706270727082709271027112712271327142715271627172718271927202721272227232724272527262727272827292730273127322733273427352736273727382739274027412742274327442745274627472748274927502751275227532754275527562757275827592760276127622763276427652766276727682769277027712772277327742775277627772778277927802781278227832784278527862787278827892790279127922793279427952796279727982799280028012802280328042805280628072808280928102811281228132814281528162817281828192820282128222823282428252826282728282829283028312832283328342835283628372838283928402841284228432844284528462847284828492850285128522853285428552856285728582859286028612862286328642865286628672868286928702871287228732874287528762877287828792880288128822883288428852886288728882889289028912892289328942895289628972898289929002901290229032904290529062907290829092910291129122913291429152916291729182919292029212922292329242925292629272928292929302931293229332934293529362937293829392940294129422943294429452946294729482949295029512952295329542955295629572958295929602961296229632964296529662967296829692970297129722973297429752976297729782979298029812982298329842985298629872988298929902991299229932994299529962997299829993000300130023003300430053006300730083009301030113012301330143015301630173018301930203021302230233024302530263027302830293030303130323033303430353036303730383039304030413042304330443045304630473048304930503051305230533054305530563057305830593060306130623063306430653066306730683069307030713072307330743075307630773078307930803081308230833084308530863087308830893090309130923093309430953096309730983099310031013102310331043105310631073108310931103111311231133114311531163117311831193120312131223123312431253126312731283129313031313132313331343135313631373138313931403141314231433144314531463147314831493150315131523153315431553156315731583159316031613162316331643165316631673168316931703171317231733174317531763177317831793180318131823183318431853186318731883189319031913192319331943195319631973198319932003201320232033204320532063207320832093210321132123213321432153216321732183219322032213222322332243225322632273228322932303231323232333234323532363237323832393240324132423243324432453246324732483249325032513252325332543255325632573258325932603261326232633264326532663267326832693270327132723273327432753276327732783279328032813282328332843285328632873288328932903291329232933294329532963297329832993300330133023303330433053306330733083309331033113312331333143315331633173318331933203321332233233324332533263327332833293330333133323333333433353336333733383339334033413342334333443345334633473348334933503351335233533354335533563357335833593360336133623363336433653366336733683369337033713372337333743375337633773378337933803381338233833384338533863387338833893390339133923393339433953396339733983399340034013402340334043405340634073408340934103411341234133414341534163417341834193420342134223423342434253426342734283429343034313432343334343435343634373438343934403441344234433444344534463447344834493450345134523453345434553456345734583459346034613462346334643465346634673468346934703471347234733474347534763477347834793480348134823483348434853486348734883489349034913492349334943495349634973498349935003501350235033504350535063507350835093510351135123513351435153516351735183519352035213522352335243525352635273528352935303531353235333534353535363537353835393540354135423543354435453546354735483549355035513552355335543555355635573558355935603561356235633564356535663567356835693570357135723573357435753576357735783579358035813582358335843585358635873588358935903591359235933594359535963597359835993600360136023603360436053606360736083609361036113612361336143615361636173618361936203621362236233624362536263627362836293630363136323633363436353636363736383639364036413642364336443645364636473648364936503651365236533654
							(function() {

// CommonJS require()

function require(p){
    var path = require.resolve(p)
      , mod = require.modules[path];
    if (!mod) throw new Error('failed to require "' + p + '"');
    if (!mod.exports) {
      mod.exports = {};
      mod.call(mod.exports, mod, mod.exports, require.relative(path));
    }
    return mod.exports;
  }

require.modules = {};

require.resolve = function (path){
    var orig = path
      , reg = path + '.js'
      , index = path + '/index.js';
    return require.modules[reg] && reg
      || require.modules[index] && index
      || orig;
  };

require.register = function (path, fn){
    require.modules[path] = fn;
  };

require.relative = function (parent) {
    return function(p){
      if ('.' != p.charAt(0)) return require(p);
      
      var path = parent.split('/')
        , segs = p.split('/');
      path.pop();
      
      for (var i = 0; i < segs.length; i++) {
        var seg = segs[i];
        if ('..' == seg) path.pop();
        else if ('.' != seg) path.push(seg);
      }

      return require(path.join('/'));
    };
  };


require.register("compiler.js", function(module, exports, require){

/*!
 * Jade - Compiler
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var nodes = require('./nodes')
  , filters = require('./filters')
  , doctypes = require('./doctypes')
  , selfClosing = require('./self-closing')
  , runtime = require('./runtime')
  , utils = require('./utils');


 if (!Object.keys) {
   Object.keys = function(obj){
     var arr = [];
     for (var key in obj) {
       if (obj.hasOwnProperty(key)) {
         arr.push(key);
       }
     }
     return arr;
   }
 }

 if (!String.prototype.trimLeft) {
   String.prototype.trimLeft = function(){
     return this.replace(/^\s+/, '');
   }
 }


/**
 * Initialize `Compiler` with the given `node`.
 *
 * @param {Node} node
 * @param {Object} options
 * @api public
 */

var Compiler = module.exports = function Compiler(node, options) {
  this.options = options = options || {};
  this.node = node;
  this.hasCompiledDoctype = false;
  this.hasCompiledTag = false;
  this.pp = options.pretty || false;
  this.debug = false !== options.compileDebug;
  this.indents = 0;
  this.parentIndents = 0;
  if (options.doctype) this.setDoctype(options.doctype);
};

/**
 * Compiler prototype.
 */

Compiler.prototype = {

  /**
   * Compile parse tree to JavaScript.
   *
   * @api public
   */

  compile: function(){
    this.buf = ['var interp;'];
    if (this.pp) this.buf.push("var __indent = [];");
    this.lastBufferedIdx = -1;
    this.visit(this.node);
    return this.buf.join('\n');
  },

  /**
   * Sets the default doctype `name`. Sets terse mode to `true` when
   * html 5 is used, causing self-closing tags to end with ">" vs "/>",
   * and boolean attributes are not mirrored.
   *
   * @param {string} name
   * @api public
   */

  setDoctype: function(name){
    name = (name && name.toLowerCase()) || 'default';
    this.doctype = doctypes[name] || '<!DOCTYPE ' + name + '>';
    this.terse = this.doctype.toLowerCase() == '<!doctype html>';
    this.xml = 0 == this.doctype.indexOf('<?xml');
  },

  /**
   * Buffer the given `str` optionally escaped.
   *
   * @param {String} str
   * @param {Boolean} esc
   * @api public
   */

  buffer: function(str, esc){
    if (esc) str = utils.escape(str);

    if (this.lastBufferedIdx == this.buf.length) {
      this.lastBuffered += str;
      this.buf[this.lastBufferedIdx - 1] = "buf.push('" + this.lastBuffered + "');"
    } else {
      this.buf.push("buf.push('" + str + "');");
      this.lastBuffered = str;
      this.lastBufferedIdx = this.buf.length;
    }
  },

  /**
   * Buffer an indent based on the current `indent`
   * property and an additional `offset`.
   *
   * @param {Number} offset
   * @param {Boolean} newline
   * @api public
   */

  prettyIndent: function(offset, newline){
    offset = offset || 0;
    newline = newline ? '\\n' : '';
    this.buffer(newline + Array(this.indents + offset).join('  '));
    if (this.parentIndents)
      this.buf.push("buf.push.apply(buf, __indent);");
  },

  /**
   * Visit `node`.
   *
   * @param {Node} node
   * @api public
   */

  visit: function(node){
    var debug = this.debug;

    if (debug) {
      this.buf.push('__jade.unshift({ lineno: ' + node.line
        + ', filename: ' + (node.filename
          ? JSON.stringify(node.filename)
          : '__jade[0].filename')
        + ' });');
    }

    // Massive hack to fix our context
    // stack for - else[ if] etc
    if (false === node.debug && this.debug) {
      this.buf.pop();
      this.buf.pop();
    }

    this.visitNode(node);

    if (debug) this.buf.push('__jade.shift();');
  },

  /**
   * Visit `node`.
   *
   * @param {Node} node
   * @api public
   */

  visitNode: function(node){
    var name = node.constructor.name
      || node.constructor.toString().match(/function ([^(\s]+)()/)[1];
    return this['visit' + name](node);
  },

  /**
   * Visit case `node`.
   *
   * @param {Literal} node
   * @api public
   */

  visitCase: function(node){
    var _ = this.withinCase;
    this.withinCase = true;
    this.buf.push('switch (' + node.expr + '){');
    this.visit(node.block);
    this.buf.push('}');
    this.withinCase = _;
  },

  /**
   * Visit when `node`.
   *
   * @param {Literal} node
   * @api public
   */

  visitWhen: function(node){
    if ('default' == node.expr) {
      this.buf.push('default:');
    } else {
      this.buf.push('case ' + node.expr + ':');
    }
    this.visit(node.block);
    this.buf.push('  break;');
  },

  /**
   * Visit literal `node`.
   *
   * @param {Literal} node
   * @api public
   */

  visitLiteral: function(node){
    var str = node.str.replace(/\n/g, '\\\\n');
    this.buffer(str);
  },

  /**
   * Visit all nodes in `block`.
   *
   * @param {Block} block
   * @api public
   */

  visitBlock: function(block){
    var len = block.nodes.length
      , escape = this.escape
      , pp = this.pp

    // Block keyword has a special meaning in mixins
    if (this.parentIndents && block.mode) {
      if (pp) this.buf.push("__indent.push('" + Array(this.indents + 1).join('  ') + "');")
      this.buf.push('block && block();');
      if (pp) this.buf.push("__indent.pop();")
      return;
    }

    // Pretty print multi-line text
    if (pp && len > 1 && !escape && block.nodes[0].isText && block.nodes[1].isText)
      this.prettyIndent(1, true);

    for (var i = 0; i < len; ++i) {
      // Pretty print text
      if (pp && i > 0 && !escape && block.nodes[i].isText && block.nodes[i-1].isText)
        this.prettyIndent(1, false);

      this.visit(block.nodes[i]);
      // Multiple text nodes are separated by newlines
      if (block.nodes[i+1] && block.nodes[i].isText && block.nodes[i+1].isText)
        this.buffer('\\n');
    }
  },

  /**
   * Visit `doctype`. Sets terse mode to `true` when html 5
   * is used, causing self-closing tags to end with ">" vs "/>",
   * and boolean attributes are not mirrored.
   *
   * @param {Doctype} doctype
   * @api public
   */

  visitDoctype: function(doctype){
    if (doctype && (doctype.val || !this.doctype)) {
      this.setDoctype(doctype.val || 'default');
    }

    if (this.doctype) this.buffer(this.doctype);
    this.hasCompiledDoctype = true;
  },

  /**
   * Visit `mixin`, generating a function that
   * may be called within the template.
   *
   * @param {Mixin} mixin
   * @api public
   */

  visitMixin: function(mixin){
    var name = mixin.name.replace(/-/g, '_') + '_mixin'
      , args = mixin.args || ''
      , block = mixin.block
      , attrs = mixin.attrs
      , pp = this.pp;

    if (mixin.call) {
      if (pp) this.buf.push("__indent.push('" + Array(this.indents + 1).join('  ') + "');")
      if (block || attrs.length) {

        this.buf.push(name + '.call({');

        if (block) {
          this.buf.push('block: function(){');

          // Render block with no indents, dynamically added when rendered
          this.parentIndents++;
          var _indents = this.indents;
          this.indents = 0;
          this.visit(mixin.block);
          this.indents = _indents;
          this.parentIndents--;

          if (attrs.length) {
            this.buf.push('},');
          } else {
            this.buf.push('}');
          }
        }

        if (attrs.length) {
          var val = this.attrs(attrs);
          if (val.inherits) {
            this.buf.push('attributes: merge({' + val.buf
                + '}, attributes), escaped: merge(' + val.escaped + ', escaped, true)');
          } else {
            this.buf.push('attributes: {' + val.buf + '}, escaped: ' + val.escaped);
          }
        }

        if (args) {
          this.buf.push('}, ' + args + ');');
        } else {
          this.buf.push('});');
        }

      } else {
        this.buf.push(name + '(' + args + ');');
      }
      if (pp) this.buf.push("__indent.pop();")
    } else {
      this.buf.push('var ' + name + ' = function(' + args + '){');
      this.buf.push('var block = this.block, attributes = this.attributes || {}, escaped = this.escaped || {};');
      this.parentIndents++;
      this.visit(block);
      this.parentIndents--;
      this.buf.push('};');
    }
  },

  /**
   * Visit `tag` buffering tag markup, generating
   * attributes, visiting the `tag`'s code and block.
   *
   * @param {Tag} tag
   * @api public
   */

  visitTag: function(tag){
    this.indents++;
    var name = tag.name
      , pp = this.pp;

    if (tag.buffer) name = "' + (" + name + ") + '";

    if (!this.hasCompiledTag) {
      if (!this.hasCompiledDoctype && 'html' == name) {
        this.visitDoctype();
      }
      this.hasCompiledTag = true;
    }

    // pretty print
    if (pp && !tag.isInline())
      this.prettyIndent(0, true);

    if ((~selfClosing.indexOf(name) || tag.selfClosing) && !this.xml) {
      this.buffer('<' + name);
      this.visitAttributes(tag.attrs);
      this.terse
        ? this.buffer('>')
        : this.buffer('/>');
    } else {
      // Optimize attributes buffering
      if (tag.attrs.length) {
        this.buffer('<' + name);
        if (tag.attrs.length) this.visitAttributes(tag.attrs);
        this.buffer('>');
      } else {
        this.buffer('<' + name + '>');
      }
      if (tag.code) this.visitCode(tag.code);
      this.escape = 'pre' == tag.name;
      this.visit(tag.block);

      // pretty print
      if (pp && !tag.isInline() && 'pre' != tag.name && !tag.canInline())
        this.prettyIndent(0, true);

      this.buffer('</' + name + '>');
    }
    this.indents--;
  },

  /**
   * Visit `filter`, throwing when the filter does not exist.
   *
   * @param {Filter} filter
   * @api public
   */

  visitFilter: function(filter){
    var fn = filters[filter.name];

    // unknown filter
    if (!fn) {
      if (filter.isASTFilter) {
        throw new Error('unknown ast filter "' + filter.name + ':"');
      } else {
        throw new Error('unknown filter ":' + filter.name + '"');
      }
    }

    if (filter.isASTFilter) {
      this.buf.push(fn(filter.block, this, filter.attrs));
    } else {
      var text = filter.block.nodes.map(function(node){ return node.val }).join('\n');
      filter.attrs = filter.attrs || {};
      filter.attrs.filename = this.options.filename;
      this.buffer(utils.text(fn(text, filter.attrs)));
    }
  },

  /**
   * Visit `text` node.
   *
   * @param {Text} text
   * @api public
   */

  visitText: function(text){
    text = utils.text(text.val.replace(/\\/g, '_SLASH_'));
    if (this.escape) text = escape(text);
    text = text.replace(/_SLASH_/g, '\\\\');
    this.buffer(text);
  },

  /**
   * Visit a `comment`, only buffering when the buffer flag is set.
   *
   * @param {Comment} comment
   * @api public
   */

  visitComment: function(comment){
    if (!comment.buffer) return;
    if (this.pp) this.prettyIndent(1, true);
    this.buffer('<!--' + utils.escape(comment.val) + '-->');
  },

  /**
   * Visit a `BlockComment`.
   *
   * @param {Comment} comment
   * @api public
   */

  visitBlockComment: function(comment){
    if (!comment.buffer) return;
    if (0 == comment.val.trim().indexOf('if')) {
      this.buffer('<!--[' + comment.val.trim() + ']>');
      this.visit(comment.block);
      this.buffer('<![endif]-->');
    } else {
      this.buffer('<!--' + comment.val);
      this.visit(comment.block);
      this.buffer('-->');
    }
  },

  /**
   * Visit `code`, respecting buffer / escape flags.
   * If the code is followed by a block, wrap it in
   * a self-calling function.
   *
   * @param {Code} code
   * @api public
   */

  visitCode: function(code){
    // Wrap code blocks with {}.
    // we only wrap unbuffered code blocks ATM
    // since they are usually flow control

    // Buffer code
    if (code.buffer) {
      var val = code.val.trimLeft();
      this.buf.push('var __val__ = ' + val);
      val = 'null == __val__ ? "" : __val__';
      if (code.escape) val = 'escape(' + val + ')';
      this.buf.push("buf.push(" + val + ");");
    } else {
      this.buf.push(code.val);
    }

    // Block support
    if (code.block) {
      if (!code.buffer) this.buf.push('{');
      this.visit(code.block);
      if (!code.buffer) this.buf.push('}');
    }
  },

  /**
   * Visit `each` block.
   *
   * @param {Each} each
   * @api public
   */

  visitEach: function(each){
    this.buf.push(''
      + '// iterate ' + each.obj + '\n'
      + ';(function(){\n'
      + '  if (\'number\' == typeof ' + each.obj + '.length) {\n');

    if (each.alternative) {
      this.buf.push('  if (' + each.obj + '.length) {');
    }

    this.buf.push(''
      + '    for (var ' + each.key + ' = 0, $$l = ' + each.obj + '.length; ' + each.key + ' < $$l; ' + each.key + '++) {\n'
      + '      var ' + each.val + ' = ' + each.obj + '[' + each.key + '];\n');

    this.visit(each.block);

    this.buf.push('    }\n');

    if (each.alternative) {
      this.buf.push('  } else {');
      this.visit(each.alternative);
      this.buf.push('  }');
    }

    this.buf.push(''
      + '  } else {\n'
      + '    var $$l = 0;\n'
      + '    for (var ' + each.key + ' in ' + each.obj + ') {\n'
      + '      $$l++;'
       + '      if (' + each.obj + '.hasOwnProperty(' + each.key + ')){'
      + '      var ' + each.val + ' = ' + each.obj + '[' + each.key + '];\n');

    this.visit(each.block);

     this.buf.push('      }\n');

    this.buf.push('    }\n');
    if (each.alternative) {
      this.buf.push('    if ($$l === 0) {');
      this.visit(each.alternative);
      this.buf.push('    }');
    }
    this.buf.push('  }\n}).call(this);\n');
  },

  /**
   * Visit `attrs`.
   *
   * @param {Array} attrs
   * @api public
   */

  visitAttributes: function(attrs){
    var val = this.attrs(attrs);
    if (val.inherits) {
      this.buf.push("buf.push(attrs(merge({ " + val.buf +
          " }, attributes), merge(" + val.escaped + ", escaped, true)));");
    } else if (val.constant) {
      eval('var buf={' + val.buf + '};');
      this.buffer(runtime.attrs(buf, JSON.parse(val.escaped)), true);
    } else {
      this.buf.push("buf.push(attrs({ " + val.buf + " }, " + val.escaped + "));");
    }
  },

  /**
   * Compile attributes.
   */

  attrs: function(attrs){
    var buf = []
      , classes = []
      , escaped = {}
      , constant = attrs.every(function(attr){ return isConstant(attr.val) })
      , inherits = false;

    if (this.terse) buf.push('terse: true');

    attrs.forEach(function(attr){
      if (attr.name == 'attributes') return inherits = true;
      escaped[attr.name] = attr.escaped;
      if (attr.name == 'class') {
        classes.push('(' + attr.val + ')');
      } else {
        var pair = "'" + attr.name + "':(" + attr.val + ')';
        buf.push(pair);
      }
    });

    if (classes.length) {
      classes = classes.join(" + ' ' + ");
      buf.push("class: " + classes);
    }

    return {
      buf: buf.join(', ').replace('class:', '"class":'),
      escaped: JSON.stringify(escaped),
      inherits: inherits,
      constant: constant
    };
  }
};

/**
 * Check if expression can be evaluated to a constant
 *
 * @param {String} expression
 * @return {Boolean}
 * @api private
 */

function isConstant(val){
  // Check strings/literals
  if (/^ *("([^"\\]*(\\.[^"\\]*)*)"|'([^'\\]*(\\.[^'\\]*)*)'|true|false|null|undefined) *$/i.test(val))
    return true;

  // Check numbers
  if (!isNaN(Number(val)))
    return true;

  // Check arrays
  var matches;
  if (matches = /^ *\[(.*)\] *$/.exec(val))
    return matches[1].split(',').every(isConstant);

  return false;
}

/**
 * Escape the given string of `html`.
 *
 * @param {String} html
 * @return {String}
 * @api private
 */

function escape(html){
  return String(html)
    .replace(/&(?!\w+;)/g, '&amp;')
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;')
    .replace(/"/g, '&quot;');
}

}); // module: compiler.js

require.register("doctypes.js", function(module, exports, require){

/*!
 * Jade - doctypes
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

module.exports = {
    '5': '<!DOCTYPE html>'
  , 'default': '<!DOCTYPE html>'
  , 'xml': '<?xml version="1.0" encoding="utf-8" ?>'
  , 'transitional': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
  , 'strict': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'
  , 'frameset': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">'
  , '1.1': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
  , 'basic': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">'
  , 'mobile': '<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.2//EN" "http://www.openmobilealliance.org/tech/DTD/xhtml-mobile12.dtd">'
};
}); // module: doctypes.js

require.register("filters.js", function(module, exports, require){

/*!
 * Jade - filters
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

module.exports = {
  
  /**
   * Wrap text with CDATA block.
   */
  
  cdata: function(str){
    return '<![CDATA[\\n' + str + '\\n]]>';
  },
  
  /**
   * Transform sass to css, wrapped in style tags.
   */
  
  sass: function(str){
    str = str.replace(/\\n/g, '\n');
    var sass = require('sass').render(str).replace(/\n/g, '\\n');
    return '<style type="text/css">' + sass + '</style>'; 
  },
  
  /**
   * Transform stylus to css, wrapped in style tags.
   */
  
  stylus: function(str, options){
    var ret;
    str = str.replace(/\\n/g, '\n');
    var stylus = require('stylus');
    stylus(str, options).render(function(err, css){
      if (err) throw err;
      ret = css.replace(/\n/g, '\\n');
    });
    return '<style type="text/css">' + ret + '</style>'; 
  },
  
  /**
   * Transform less to css, wrapped in style tags.
   */
  
  less: function(str){
    var ret;
    str = str.replace(/\\n/g, '\n');
    require('less').render(str, function(err, css){
      if (err) throw err;
      ret = '<style type="text/css">' + css.replace(/\n/g, '\\n') + '</style>';  
    });
    return ret;
  },
  
  /**
   * Transform markdown to html.
   */
  
  markdown: function(str){
    var md;

    // support markdown / discount
    try {
      md = require('markdown');
    } catch (err){
      try {
        md = require('discount');
      } catch (err) {
        try {
          md = require('markdown-js');
        } catch (err) {
          try {
            md = require('marked');
          } catch (err) {
            throw new
              Error('Cannot find markdown library, install markdown, discount, or marked.');
          }
        }
      }
    }

    str = str.replace(/\\n/g, '\n');
    return md.parse(str).replace(/\n/g, '\\n').replace(/'/g,'&#39;');
  },
  
  /**
   * Transform coffeescript to javascript.
   */

  coffeescript: function(str){
    var js = require('coffee-script').compile(str).replace(/\\/g, '\\\\').replace(/\n/g, '\\n');
    return '<script type="text/javascript">\\n' + js + '</script>';
  }
};

}); // module: filters.js

require.register("inline-tags.js", function(module, exports, require){

/*!
 * Jade - inline tags
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

module.exports = [
    'a'
  , 'abbr'
  , 'acronym'
  , 'b'
  , 'br'
  , 'code'
  , 'em'
  , 'font'
  , 'i'
  , 'img'
  , 'ins'
  , 'kbd'
  , 'map'
  , 'samp'
  , 'small'
  , 'span'
  , 'strong'
  , 'sub'
  , 'sup'
];
}); // module: inline-tags.js

require.register("jade.js", function(module, exports, require){
/*!
 * Jade
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Parser = require('./parser')
  , Lexer = require('./lexer')
  , Compiler = require('./compiler')
  , runtime = require('./runtime')

/**
 * Library version.
 */

exports.version = '0.27.6';

/**
 * Expose self closing tags.
 */

exports.selfClosing = require('./self-closing');

/**
 * Default supported doctypes.
 */

exports.doctypes = require('./doctypes');

/**
 * Text filters.
 */

exports.filters = require('./filters');

/**
 * Utilities.
 */

exports.utils = require('./utils');

/**
 * Expose `Compiler`.
 */

exports.Compiler = Compiler;

/**
 * Expose `Parser`.
 */

exports.Parser = Parser;

/**
 * Expose `Lexer`.
 */

exports.Lexer = Lexer;

/**
 * Nodes.
 */

exports.nodes = require('./nodes');

/**
 * Jade runtime helpers.
 */

exports.runtime = runtime;

/**
 * Template function cache.
 */

exports.cache = {};

/**
 * Parse the given `str` of jade and return a function body.
 *
 * @param {String} str
 * @param {Object} options
 * @return {String}
 * @api private
 */

function parse(str, options){
  try {
    // Parse
    var parser = new Parser(str, options.filename, options);

    // Compile
    var compiler = new (options.compiler || Compiler)(parser.parse(), options)
      , js = compiler.compile();

    // Debug compiler
    if (options.debug) {
      console.error('\nCompiled Function:\n\n\033[90m%s\033[0m', js.replace(/^/gm, '  '));
    }

    return ''
      + 'var buf = [];\n'
      + (options.self
        ? 'var self = locals || {};\n' + js
        : 'with (locals || {}) {\n' + js + '\n}\n')
      + 'return buf.join("");';
  } catch (err) {
    parser = parser.context();
    runtime.rethrow(err, parser.filename, parser.lexer.lineno);
  }
}

/**
 * Strip any UTF-8 BOM off of the start of `str`, if it exists.
 *
 * @param {String} str
 * @return {String}
 * @api private
 */

function stripBOM(str){
  return 0xFEFF == str.charCodeAt(0)
    ? str.substring(1)
    : str;
}

/**
 * Compile a `Function` representation of the given jade `str`.
 *
 * Options:
 *
 *   - `compileDebug` when `false` debugging code is stripped from the compiled template
 *   - `client` when `true` the helper functions `escape()` etc will reference `jade.escape()`
 *      for use with the Jade client-side runtime.js
 *
 * @param {String} str
 * @param {Options} options
 * @return {Function}
 * @api public
 */

exports.compile = function(str, options){
  var options = options || {}
    , client = options.client
    , filename = options.filename
      ? JSON.stringify(options.filename)
      : 'undefined'
    , fn;

  str = stripBOM(String(str));

  if (options.compileDebug !== false) {
    fn = [
        'var __jade = [{ lineno: 1, filename: ' + filename + ' }];'
      , 'try {'
      , parse(str, options)
      , '} catch (err) {'
      , '  rethrow(err, __jade[0].filename, __jade[0].lineno);'
      , '}'
    ].join('\n');
  } else {
    fn = parse(str, options);
  }

  if (client) {
    fn = 'attrs = attrs || jade.attrs; escape = escape || jade.escape; rethrow = rethrow || jade.rethrow; merge = merge || jade.merge;\n' + fn;
  }

  fn = new Function('locals, attrs, escape, rethrow, merge', fn);

  if (client) return fn;

  return function(locals){
    return fn(locals, runtime.attrs, runtime.escape, runtime.rethrow, runtime.merge);
  };
};

/**
 * Render the given `str` of jade and invoke
 * the callback `fn(err, str)`.
 *
 * Options:
 *
 *   - `cache` enable template caching
 *   - `filename` filename required for `include` / `extends` and caching
 *
 * @param {String} str
 * @param {Object|Function} options or fn
 * @param {Function} fn
 * @api public
 */

exports.render = function(str, options, fn){
  // swap args
  if ('function' == typeof options) {
    fn = options, options = {};
  }

  // cache requires .filename
  if (options.cache && !options.filename) {
    return fn(new Error('the "filename" option is required for caching'));
  }

  try {
    var path = options.filename;
    var tmpl = options.cache
      ? exports.cache[path] || (exports.cache[path] = exports.compile(str, options))
      : exports.compile(str, options);
    fn(null, tmpl(options));
  } catch (err) {
    fn(err);
  }
};

/**
 * Render a Jade file at the given `path` and callback `fn(err, str)`.
 *
 * @param {String} path
 * @param {Object|Function} options or callback
 * @param {Function} fn
 * @api public
 */

exports.renderFile = function(path, options, fn){
  var key = path + ':string';

  if ('function' == typeof options) {
    fn = options, options = {};
  }

  try {
    options.filename = path;
    var str = options.cache
      ? exports.cache[key] || (exports.cache[key] = fs.readFileSync(path, 'utf8'))
      : fs.readFileSync(path, 'utf8');
    exports.render(str, options, fn);
  } catch (err) {
    fn(err);
  }
};

/**
 * Express support.
 */

exports.__express = exports.renderFile;

}); // module: jade.js

require.register("lexer.js", function(module, exports, require){
/*!
 * Jade - Lexer
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

var utils = require('./utils');

/**
 * Initialize `Lexer` with the given `str`.
 *
 * Options:
 *
 *   - `colons` allow colons for attr delimiters
 *
 * @param {String} str
 * @param {Object} options
 * @api private
 */

var Lexer = module.exports = function Lexer(str, options) {
  options = options || {};
  this.input = str.replace(/\r\n|\r/g, '\n');
  this.colons = options.colons;
  this.deferredTokens = [];
  this.lastIndents = 0;
  this.lineno = 1;
  this.stash = [];
  this.indentStack = [];
  this.indentRe = null;
  this.pipeless = false;
};

/**
 * Lexer prototype.
 */

Lexer.prototype = {
  
  /**
   * Construct a token with the given `type` and `val`.
   *
   * @param {String} type
   * @param {String} val
   * @return {Object}
   * @api private
   */
  
  tok: function(type, val){
    return {
        type: type
      , line: this.lineno
      , val: val
    }
  },
  
  /**
   * Consume the given `len` of input.
   *
   * @param {Number} len
   * @api private
   */
  
  consume: function(len){
    this.input = this.input.substr(len);
  },
  
  /**
   * Scan for `type` with the given `regexp`.
   *
   * @param {String} type
   * @param {RegExp} regexp
   * @return {Object}
   * @api private
   */
  
  scan: function(regexp, type){
    var captures;
    if (captures = regexp.exec(this.input)) {
      this.consume(captures[0].length);
      return this.tok(type, captures[1]);
    }
  },
  
  /**
   * Defer the given `tok`.
   *
   * @param {Object} tok
   * @api private
   */
  
  defer: function(tok){
    this.deferredTokens.push(tok);
  },
  
  /**
   * Lookahead `n` tokens.
   *
   * @param {Number} n
   * @return {Object}
   * @api private
   */
  
  lookahead: function(n){
    var fetch = n - this.stash.length;
    while (fetch-- > 0) this.stash.push(this.next());
    return this.stash[--n];
  },
  
  /**
   * Return the indexOf `start` / `end` delimiters.
   *
   * @param {String} start
   * @param {String} end
   * @return {Number}
   * @api private
   */
  
  indexOfDelimiters: function(start, end){
    var str = this.input
      , nstart = 0
      , nend = 0
      , pos = 0;
    for (var i = 0, len = str.length; i < len; ++i) {
      if (start == str.charAt(i)) {
        ++nstart;
      } else if (end == str.charAt(i)) {
        if (++nend == nstart) {
          pos = i;
          break;
        }
      }
    }
    return pos;
  },
  
  /**
   * Stashed token.
   */
  
  stashed: function() {
    return this.stash.length
      && this.stash.shift();
  },
  
  /**
   * Deferred token.
   */
  
  deferred: function() {
    return this.deferredTokens.length 
      && this.deferredTokens.shift();
  },
  
  /**
   * end-of-source.
   */
  
  eos: function() {
    if (this.input.length) return;
    if (this.indentStack.length) {
      this.indentStack.shift();
      return this.tok('outdent');
    } else {
      return this.tok('eos');
    }
  },

  /**
   * Blank line.
   */
  
  blank: function() {
    var captures;
    if (captures = /^\n *\n/.exec(this.input)) {
      this.consume(captures[0].length - 1);

      ++this.lineno;
      if (this.pipeless) return this.tok('text', '');
      return this.next();
    }
  },

  /**
   * Comment.
   */
  
  comment: function() {
    var captures;
    if (captures = /^ *\/\/(-)?([^\n]*)/.exec(this.input)) {
      this.consume(captures[0].length);
      var tok = this.tok('comment', captures[2]);
      tok.buffer = '-' != captures[1];
      return tok;
    }
  },

  /**
   * Interpolated tag.
   */

  interpolation: function() {
    var captures;
    if (captures = /^#\{(.*?)\}/.exec(this.input)) {
      this.consume(captures[0].length);
      return this.tok('interpolation', captures[1]);
    }
  },

  /**
   * Tag.
   */
  
  tag: function() {
    var captures;
    if (captures = /^(\w[-:\w]*)(\/?)/.exec(this.input)) {
      this.consume(captures[0].length);
      var tok, name = captures[1];
      if (':' == name[name.length - 1]) {
        name = name.slice(0, -1);
        tok = this.tok('tag', name);
        this.defer(this.tok(':'));
        while (' ' == this.input[0]) this.input = this.input.substr(1);
      } else {
        tok = this.tok('tag', name);
      }
      tok.selfClosing = !! captures[2];
      return tok;
    }
  },
  
  /**
   * Filter.
   */
  
  filter: function() {
    return this.scan(/^:(\w+)/, 'filter');
  },
  
  /**
   * Doctype.
   */
  
  doctype: function() {
    return this.scan(/^(?:!!!|doctype) *([^\n]+)?/, 'doctype');
  },

  /**
   * Id.
   */
  
  id: function() {
    return this.scan(/^#([\w-]+)/, 'id');
  },
  
  /**
   * Class.
   */
  
  className: function() {
    return this.scan(/^\.([\w-]+)/, 'class');
  },
  
  /**
   * Text.
   */
  
  text: function() {
    return this.scan(/^(?:\| ?| ?)?([^\n]+)/, 'text');
  },

  /**
   * Extends.
   */
  
  "extends": function() {
    return this.scan(/^extends? +([^\n]+)/, 'extends');
  },

  /**
   * Block prepend.
   */
  
  prepend: function() {
    var captures;
    if (captures = /^prepend +([^\n]+)/.exec(this.input)) {
      this.consume(captures[0].length);
      var mode = 'prepend'
        , name = captures[1]
        , tok = this.tok('block', name);
      tok.mode = mode;
      return tok;
    }
  },
  
  /**
   * Block append.
   */
  
  append: function() {
    var captures;
    if (captures = /^append +([^\n]+)/.exec(this.input)) {
      this.consume(captures[0].length);
      var mode = 'append'
        , name = captures[1]
        , tok = this.tok('block', name);
      tok.mode = mode;
      return tok;
    }
  },

  /**
   * Block.
   */
  
  block: function() {
    var captures;
    if (captures = /^block\b *(?:(prepend|append) +)?([^\n]*)/.exec(this.input)) {
      this.consume(captures[0].length);
      var mode = captures[1] || 'replace'
        , name = captures[2]
        , tok = this.tok('block', name);

      tok.mode = mode;
      return tok;
    }
  },

  /**
   * Yield.
   */
  
  yield: function() {
    return this.scan(/^yield */, 'yield');
  },

  /**
   * Include.
   */
  
  include: function() {
    return this.scan(/^include +([^\n]+)/, 'include');
  },

  /**
   * Case.
   */
  
  "case": function() {
    return this.scan(/^case +([^\n]+)/, 'case');
  },

  /**
   * When.
   */
  
  when: function() {
    return this.scan(/^when +([^:\n]+)/, 'when');
  },

  /**
   * Default.
   */
  
  "default": function() {
    return this.scan(/^default */, 'default');
  },

  /**
   * Assignment.
   */
  
  assignment: function() {
    var captures;
    if (captures = /^(\w+) += *([^;\n]+)( *;? *)/.exec(this.input)) {
      this.consume(captures[0].length);
      var name = captures[1]
        , val = captures[2];
      return this.tok('code', 'var ' + name + ' = (' + val + ');');
    }
  },

  /**
   * Call mixin.
   */
  
  call: function(){
    var captures;
    if (captures = /^\+([-\w]+)/.exec(this.input)) {
      this.consume(captures[0].length);
      var tok = this.tok('call', captures[1]);
      
      // Check for args (not attributes)
      if (captures = /^ *\((.*?)\)/.exec(this.input)) {
        if (!/^ *[-\w]+ *=/.test(captures[1])) {
          this.consume(captures[0].length);
          tok.args = captures[1];
        }
      }
      
      return tok;
    }
  },

  /**
   * Mixin.
   */

  mixin: function(){
    var captures;
    if (captures = /^mixin +([-\w]+)(?: *\((.*)\))?/.exec(this.input)) {
      this.consume(captures[0].length);
      var tok = this.tok('mixin', captures[1]);
      tok.args = captures[2];
      return tok;
    }
  },

  /**
   * Conditional.
   */
  
  conditional: function() {
    var captures;
    if (captures = /^(if|unless|else if|else)\b([^\n]*)/.exec(this.input)) {
      this.consume(captures[0].length);
      var type = captures[1]
        , js = captures[2];

      switch (type) {
        case 'if': js = 'if (' + js + ')'; break;
        case 'unless': js = 'if (!(' + js + '))'; break;
        case 'else if': js = 'else if (' + js + ')'; break;
        case 'else': js = 'else'; break;
      }

      return this.tok('code', js);
    }
  },

  /**
   * While.
   */
  
  "while": function() {
    var captures;
    if (captures = /^while +([^\n]+)/.exec(this.input)) {
      this.consume(captures[0].length);
      return this.tok('code', 'while (' + captures[1] + ')');
    }
  },

  /**
   * Each.
   */
  
  each: function() {
    var captures;
    if (captures = /^(?:- *)?(?:each|for) +(\w+)(?: *, *(\w+))? * in *([^\n]+)/.exec(this.input)) {
      this.consume(captures[0].length);
      var tok = this.tok('each', captures[1]);
      tok.key = captures[2] || '$index';
      tok.code = captures[3];
      return tok;
    }
  },
  
  /**
   * Code.
   */
  
  code: function() {
    var captures;
    if (captures = /^(!?=|-)([^\n]+)/.exec(this.input)) {
      this.consume(captures[0].length);
      var flags = captures[1];
      captures[1] = captures[2];
      var tok = this.tok('code', captures[1]);
      tok.escape = flags.charAt(0) === '=';
      tok.buffer = flags.charAt(0) === '=' || flags.charAt(1) === '=';
      return tok;
    }
  },
  
  /**
   * Attributes.
   */
  
  attrs: function() {
    if ('(' == this.input.charAt(0)) {
      var index = this.indexOfDelimiters('(', ')')
        , str = this.input.substr(1, index-1)
        , tok = this.tok('attrs')
        , len = str.length
        , colons = this.colons
        , states = ['key']
        , escapedAttr
        , key = ''
        , val = ''
        , quote
        , c
        , p;

      function state(){
        return states[states.length - 1];
      }

      function interpolate(attr) {
        return attr.replace(/(\\)?#\{([^}]+)\}/g, function(_, escape, expr){
          return escape
             ? _
             : quote + " + (" + expr + ") + " + quote;
        });
      }

      this.consume(index + 1);
      tok.attrs = {};
      tok.escaped = {};

      function parse(c) {
        var real = c;
        // TODO: remove when people fix ":"
        if (colons && ':' == c) c = '=';
        switch (c) {
          case ',':
          case '\n':
            switch (state()) {
              case 'expr':
              case 'array':
              case 'string':
              case 'object':
                val += c;
                break;
              default:
                states.push('key');
                val = val.trim();
                key = key.trim();
                if ('' == key) return;
                key = key.replace(/^['"]|['"]$/g, '').replace('!', '');
                tok.escaped[key] = escapedAttr;
                tok.attrs[key] = '' == val
                  ? true
                  : interpolate(val);
                key = val = '';
            }
            break;
          case '=':
            switch (state()) {
              case 'key char':
                key += real;
                break;
              case 'val':
              case 'expr':
              case 'array':
              case 'string':
              case 'object':
                val += real;
                break;
              default:
                escapedAttr = '!' != p;
                states.push('val');
            }
            break;
          case '(':
            if ('val' == state()
              || 'expr' == state()) states.push('expr');
            val += c;
            break;
          case ')':
            if ('expr' == state()
              || 'val' == state()) states.pop();
            val += c;
            break;
          case '{':
            if ('val' == state()) states.push('object');
            val += c;
            break;
          case '}':
            if ('object' == state()) states.pop();
            val += c;
            break;
          case '[':
            if ('val' == state()) states.push('array');
            val += c;
            break;
          case ']':
            if ('array' == state()) states.pop();
            val += c;
            break;
          case '"':
          case "'":
            switch (state()) {
              case 'key':
                states.push('key char');
                break;
              case 'key char':
                states.pop();
                break;
              case 'string':
                if (c == quote) states.pop();
                val += c;
                break;
              default:
                states.push('string');
                val += c;
                quote = c;
            }
            break;
          case '':
            break;
          default:
            switch (state()) {
              case 'key':
              case 'key char':
                key += c;
                break;
              default:
                val += c;
            }
        }
        p = c;
      }

      for (var i = 0; i < len; ++i) {
        parse(str.charAt(i));
      }

      parse(',');

      if ('/' == this.input.charAt(0)) {
        this.consume(1);
        tok.selfClosing = true;
      }

      return tok;
    }
  },
  
  /**
   * Indent | Outdent | Newline.
   */
  
  indent: function() {
    var captures, re;

    // established regexp
    if (this.indentRe) {
      captures = this.indentRe.exec(this.input);
    // determine regexp
    } else {
      // tabs
      re = /^\n(\t*) */;
      captures = re.exec(this.input);

      // spaces
      if (captures && !captures[1].length) {
        re = /^\n( *)/;
        captures = re.exec(this.input);
      }

      // established
      if (captures && captures[1].length) this.indentRe = re;
    }

    if (captures) {
      var tok
        , indents = captures[1].length;

      ++this.lineno;
      this.consume(indents + 1);

      if (' ' == this.input[0] || '\t' == this.input[0]) {
        throw new Error('Invalid indentation, you can use tabs or spaces but not both');
      }

      // blank line
      if ('\n' == this.input[0]) return this.tok('newline');

      // outdent
      if (this.indentStack.length && indents < this.indentStack[0]) {
        while (this.indentStack.length && this.indentStack[0] > indents) {
          this.stash.push(this.tok('outdent'));
          this.indentStack.shift();
        }
        tok = this.stash.pop();
      // indent
      } else if (indents && indents != this.indentStack[0]) {
        this.indentStack.unshift(indents);
        tok = this.tok('indent', indents);
      // newline
      } else {
        tok = this.tok('newline');
      }

      return tok;
    }
  },

  /**
   * Pipe-less text consumed only when 
   * pipeless is true;
   */

  pipelessText: function() {
    if (this.pipeless) {
      if ('\n' == this.input[0]) return;
      var i = this.input.indexOf('\n');
      if (-1 == i) i = this.input.length;
      var str = this.input.substr(0, i);
      this.consume(str.length);
      return this.tok('text', str);
    }
  },

  /**
   * ':'
   */

  colon: function() {
    return this.scan(/^: */, ':');
  },

  /**
   * Return the next token object, or those
   * previously stashed by lookahead.
   *
   * @return {Object}
   * @api private
   */
  
  advance: function(){
    return this.stashed()
      || this.next();
  },
  
  /**
   * Return the next token object.
   *
   * @return {Object}
   * @api private
   */
  
  next: function() {
    return this.deferred()
      || this.blank()
      || this.eos()
      || this.pipelessText()
      || this.yield()
      || this.doctype()
      || this.interpolation()
      || this["case"]()
      || this.when()
      || this["default"]()
      || this["extends"]()
      || this.append()
      || this.prepend()
      || this.block()
      || this.include()
      || this.mixin()
      || this.call()
      || this.conditional()
      || this.each()
      || this["while"]()
      || this.assignment()
      || this.tag()
      || this.filter()
      || this.code()
      || this.id()
      || this.className()
      || this.attrs()
      || this.indent()
      || this.comment()
      || this.colon()
      || this.text();
  }
};

}); // module: lexer.js

require.register("nodes/attrs.js", function(module, exports, require){

/*!
 * Jade - nodes - Attrs
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node'),
    Block = require('./block');

/**
 * Initialize a `Attrs` node.
 *
 * @api public
 */

var Attrs = module.exports = function Attrs() {
  this.attrs = [];
};

/**
 * Inherit from `Node`.
 */

Attrs.prototype = new Node;
Attrs.prototype.constructor = Attrs;


/**
 * Set attribute `name` to `val`, keep in mind these become
 * part of a raw js object literal, so to quote a value you must
 * '"quote me"', otherwise or example 'user.name' is literal JavaScript.
 *
 * @param {String} name
 * @param {String} val
 * @param {Boolean} escaped
 * @return {Tag} for chaining
 * @api public
 */

Attrs.prototype.setAttribute = function(name, val, escaped){
  this.attrs.push({ name: name, val: val, escaped: escaped });
  return this;
};

/**
 * Remove attribute `name` when present.
 *
 * @param {String} name
 * @api public
 */

Attrs.prototype.removeAttribute = function(name){
  for (var i = 0, len = this.attrs.length; i < len; ++i) {
    if (this.attrs[i] && this.attrs[i].name == name) {
      delete this.attrs[i];
    }
  }
};

/**
 * Get attribute value by `name`.
 *
 * @param {String} name
 * @return {String}
 * @api public
 */

Attrs.prototype.getAttribute = function(name){
  for (var i = 0, len = this.attrs.length; i < len; ++i) {
    if (this.attrs[i] && this.attrs[i].name == name) {
      return this.attrs[i].val;
    }
  }
};

}); // module: nodes/attrs.js

require.register("nodes/block-comment.js", function(module, exports, require){

/*!
 * Jade - nodes - BlockComment
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize a `BlockComment` with the given `block`.
 *
 * @param {String} val
 * @param {Block} block
 * @param {Boolean} buffer
 * @api public
 */

var BlockComment = module.exports = function BlockComment(val, block, buffer) {
  this.block = block;
  this.val = val;
  this.buffer = buffer;
};

/**
 * Inherit from `Node`.
 */

BlockComment.prototype = new Node;
BlockComment.prototype.constructor = BlockComment;

}); // module: nodes/block-comment.js

require.register("nodes/block.js", function(module, exports, require){

/*!
 * Jade - nodes - Block
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize a new `Block` with an optional `node`.
 *
 * @param {Node} node
 * @api public
 */

var Block = module.exports = function Block(node){
  this.nodes = [];
  if (node) this.push(node);
};

/**
 * Inherit from `Node`.
 */

Block.prototype = new Node;
Block.prototype.constructor = Block;


/**
 * Block flag.
 */

Block.prototype.isBlock = true;

/**
 * Replace the nodes in `other` with the nodes
 * in `this` block.
 *
 * @param {Block} other
 * @api private
 */

Block.prototype.replace = function(other){
  other.nodes = this.nodes;
};

/**
 * Pust the given `node`.
 *
 * @param {Node} node
 * @return {Number}
 * @api public
 */

Block.prototype.push = function(node){
  return this.nodes.push(node);
};

/**
 * Check if this block is empty.
 *
 * @return {Boolean}
 * @api public
 */

Block.prototype.isEmpty = function(){
  return 0 == this.nodes.length;
};

/**
 * Unshift the given `node`.
 *
 * @param {Node} node
 * @return {Number}
 * @api public
 */

Block.prototype.unshift = function(node){
  return this.nodes.unshift(node);
};

/**
 * Return the "last" block, or the first `yield` node.
 *
 * @return {Block}
 * @api private
 */

Block.prototype.includeBlock = function(){
  var ret = this
    , node;

  for (var i = 0, len = this.nodes.length; i < len; ++i) {
    node = this.nodes[i];
    if (node.yield) return node;
    else if (node.textOnly) continue;
    else if (node.includeBlock) ret = node.includeBlock();
    else if (node.block && !node.block.isEmpty()) ret = node.block.includeBlock();
    if (ret.yield) return ret;
  }

  return ret;
};

/**
 * Return a clone of this block.
 *
 * @return {Block}
 * @api private
 */

Block.prototype.clone = function(){
  var clone = new Block;
  for (var i = 0, len = this.nodes.length; i < len; ++i) {
    clone.push(this.nodes[i].clone());
  }
  return clone;
};


}); // module: nodes/block.js

require.register("nodes/case.js", function(module, exports, require){

/*!
 * Jade - nodes - Case
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize a new `Case` with `expr`.
 *
 * @param {String} expr
 * @api public
 */

var Case = exports = module.exports = function Case(expr, block){
  this.expr = expr;
  this.block = block;
};

/**
 * Inherit from `Node`.
 */

Case.prototype = new Node;
Case.prototype.constructor = Case;


var When = exports.When = function When(expr, block){
  this.expr = expr;
  this.block = block;
  this.debug = false;
};

/**
 * Inherit from `Node`.
 */

When.prototype = new Node;
When.prototype.constructor = When;


}); // module: nodes/case.js

require.register("nodes/code.js", function(module, exports, require){

/*!
 * Jade - nodes - Code
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize a `Code` node with the given code `val`.
 * Code may also be optionally buffered and escaped.
 *
 * @param {String} val
 * @param {Boolean} buffer
 * @param {Boolean} escape
 * @api public
 */

var Code = module.exports = function Code(val, buffer, escape) {
  this.val = val;
  this.buffer = buffer;
  this.escape = escape;
  if (val.match(/^ *else/)) this.debug = false;
};

/**
 * Inherit from `Node`.
 */

Code.prototype = new Node;
Code.prototype.constructor = Code;

}); // module: nodes/code.js

require.register("nodes/comment.js", function(module, exports, require){

/*!
 * Jade - nodes - Comment
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize a `Comment` with the given `val`, optionally `buffer`,
 * otherwise the comment may render in the output.
 *
 * @param {String} val
 * @param {Boolean} buffer
 * @api public
 */

var Comment = module.exports = function Comment(val, buffer) {
  this.val = val;
  this.buffer = buffer;
};

/**
 * Inherit from `Node`.
 */

Comment.prototype = new Node;
Comment.prototype.constructor = Comment;

}); // module: nodes/comment.js

require.register("nodes/doctype.js", function(module, exports, require){

/*!
 * Jade - nodes - Doctype
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize a `Doctype` with the given `val`. 
 *
 * @param {String} val
 * @api public
 */

var Doctype = module.exports = function Doctype(val) {
  this.val = val;
};

/**
 * Inherit from `Node`.
 */

Doctype.prototype = new Node;
Doctype.prototype.constructor = Doctype;

}); // module: nodes/doctype.js

require.register("nodes/each.js", function(module, exports, require){

/*!
 * Jade - nodes - Each
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize an `Each` node, representing iteration
 *
 * @param {String} obj
 * @param {String} val
 * @param {String} key
 * @param {Block} block
 * @api public
 */

var Each = module.exports = function Each(obj, val, key, block) {
  this.obj = obj;
  this.val = val;
  this.key = key;
  this.block = block;
};

/**
 * Inherit from `Node`.
 */

Each.prototype = new Node;
Each.prototype.constructor = Each;

}); // module: nodes/each.js

require.register("nodes/filter.js", function(module, exports, require){

/*!
 * Jade - nodes - Filter
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node')
  , Block = require('./block');

/**
 * Initialize a `Filter` node with the given 
 * filter `name` and `block`.
 *
 * @param {String} name
 * @param {Block|Node} block
 * @api public
 */

var Filter = module.exports = function Filter(name, block, attrs) {
  this.name = name;
  this.block = block;
  this.attrs = attrs;
  this.isASTFilter = !block.nodes.every(function(node){ return node.isText });
};

/**
 * Inherit from `Node`.
 */

Filter.prototype = new Node;
Filter.prototype.constructor = Filter;

}); // module: nodes/filter.js

require.register("nodes/index.js", function(module, exports, require){

/*!
 * Jade - nodes
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

exports.Node = require('./node');
exports.Tag = require('./tag');
exports.Code = require('./code');
exports.Each = require('./each');
exports.Case = require('./case');
exports.Text = require('./text');
exports.Block = require('./block');
exports.Mixin = require('./mixin');
exports.Filter = require('./filter');
exports.Comment = require('./comment');
exports.Literal = require('./literal');
exports.BlockComment = require('./block-comment');
exports.Doctype = require('./doctype');

}); // module: nodes/index.js

require.register("nodes/literal.js", function(module, exports, require){

/*!
 * Jade - nodes - Literal
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize a `Literal` node with the given `str.
 *
 * @param {String} str
 * @api public
 */

var Literal = module.exports = function Literal(str) {
  this.str = str
    .replace(/\\/g, "\\\\")
    .replace(/\n|\r\n/g, "\\n")
    .replace(/'/g, "\\'");
};

/**
 * Inherit from `Node`.
 */

Literal.prototype = new Node;
Literal.prototype.constructor = Literal;


}); // module: nodes/literal.js

require.register("nodes/mixin.js", function(module, exports, require){

/*!
 * Jade - nodes - Mixin
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Attrs = require('./attrs');

/**
 * Initialize a new `Mixin` with `name` and `block`.
 *
 * @param {String} name
 * @param {String} args
 * @param {Block} block
 * @api public
 */

var Mixin = module.exports = function Mixin(name, args, block, call){
  this.name = name;
  this.args = args;
  this.block = block;
  this.attrs = [];
  this.call = call;
};

/**
 * Inherit from `Attrs`.
 */

Mixin.prototype = new Attrs;
Mixin.prototype.constructor = Mixin;


}); // module: nodes/mixin.js

require.register("nodes/node.js", function(module, exports, require){

/*!
 * Jade - nodes - Node
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Initialize a `Node`.
 *
 * @api public
 */

var Node = module.exports = function Node(){};

/**
 * Clone this node (return itself)
 *
 * @return {Node}
 * @api private
 */

Node.prototype.clone = function(){
  return this;
};

}); // module: nodes/node.js

require.register("nodes/tag.js", function(module, exports, require){

/*!
 * Jade - nodes - Tag
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Attrs = require('./attrs'),
    Block = require('./block'),
    inlineTags = require('../inline-tags');

/**
 * Initialize a `Tag` node with the given tag `name` and optional `block`.
 *
 * @param {String} name
 * @param {Block} block
 * @api public
 */

var Tag = module.exports = function Tag(name, block) {
  this.name = name;
  this.attrs = [];
  this.block = block || new Block;
};

/**
 * Inherit from `Attrs`.
 */

Tag.prototype = new Attrs;
Tag.prototype.constructor = Tag;


/**
 * Clone this tag.
 *
 * @return {Tag}
 * @api private
 */

Tag.prototype.clone = function(){
  var clone = new Tag(this.name, this.block.clone());
  clone.line = this.line;
  clone.attrs = this.attrs;
  clone.textOnly = this.textOnly;
  return clone;
};

/**
 * Check if this tag is an inline tag.
 *
 * @return {Boolean}
 * @api private
 */

Tag.prototype.isInline = function(){
  return ~inlineTags.indexOf(this.name);
};

/**
 * Check if this tag's contents can be inlined.  Used for pretty printing.
 *
 * @return {Boolean}
 * @api private
 */

Tag.prototype.canInline = function(){
  var nodes = this.block.nodes;

  function isInline(node){
    // Recurse if the node is a block
    if (node.isBlock) return node.nodes.every(isInline);
    return node.isText || (node.isInline && node.isInline());
  }
  
  // Empty tag
  if (!nodes.length) return true;
  
  // Text-only or inline-only tag
  if (1 == nodes.length) return isInline(nodes[0]);
  
  // Multi-line inline-only tag
  if (this.block.nodes.every(isInline)) {
    for (var i = 1, len = nodes.length; i < len; ++i) {
      if (nodes[i-1].isText && nodes[i].isText)
        return false;
    }
    return true;
  }
  
  // Mixed tag
  return false;
};
}); // module: nodes/tag.js

require.register("nodes/text.js", function(module, exports, require){

/*!
 * Jade - nodes - Text
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

/**
 * Initialize a `Text` node with optional `line`.
 *
 * @param {String} line
 * @api public
 */

var Text = module.exports = function Text(line) {
  this.val = '';
  if ('string' == typeof line) this.val = line;
};

/**
 * Inherit from `Node`.
 */

Text.prototype = new Node;
Text.prototype.constructor = Text;


/**
 * Flag as text.
 */

Text.prototype.isText = true;
}); // module: nodes/text.js

require.register("parser.js", function(module, exports, require){

/*!
 * Jade - Parser
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Lexer = require('./lexer')
  , nodes = require('./nodes')
  , utils = require('./utils');

/**
 * Initialize `Parser` with the given input `str` and `filename`.
 *
 * @param {String} str
 * @param {String} filename
 * @param {Object} options
 * @api public
 */

var Parser = exports = module.exports = function Parser(str, filename, options){
  this.input = str;
  this.lexer = new Lexer(str, options);
  this.filename = filename;
  this.blocks = {};
  this.mixins = {};
  this.options = options;
  this.contexts = [this];
};

/**
 * Tags that may not contain tags.
 */

var textOnly = exports.textOnly = ['script', 'style'];

/**
 * Parser prototype.
 */

Parser.prototype = {

  /**
   * Push `parser` onto the context stack,
   * or pop and return a `Parser`.
   */

  context: function(parser){
    if (parser) {
      this.contexts.push(parser);
    } else {
      return this.contexts.pop();
    }
  },

  /**
   * Return the next token object.
   *
   * @return {Object}
   * @api private
   */

  advance: function(){
    return this.lexer.advance();
  },

  /**
   * Skip `n` tokens.
   *
   * @param {Number} n
   * @api private
   */

  skip: function(n){
    while (n--) this.advance();
  },
  
  /**
   * Single token lookahead.
   *
   * @return {Object}
   * @api private
   */
  
  peek: function() {
    return this.lookahead(1);
  },
  
  /**
   * Return lexer lineno.
   *
   * @return {Number}
   * @api private
   */
  
  line: function() {
    return this.lexer.lineno;
  },
  
  /**
   * `n` token lookahead.
   *
   * @param {Number} n
   * @return {Object}
   * @api private
   */
  
  lookahead: function(n){
    return this.lexer.lookahead(n);
  },
  
  /**
   * Parse input returning a string of js for evaluation.
   *
   * @return {String}
   * @api public
   */
  
  parse: function(){
    var block = new nodes.Block, parser;
    block.line = this.line();

    while ('eos' != this.peek().type) {
      if ('newline' == this.peek().type) {
        this.advance();
      } else {
        block.push(this.parseExpr());
      }
    }

    if (parser = this.extending) {
      this.context(parser);
      var ast = parser.parse();
      this.context();
      // hoist mixins
      for (var name in this.mixins)
        ast.unshift(this.mixins[name]);
      return ast;
    }

    return block;
  },
  
  /**
   * Expect the given type, or throw an exception.
   *
   * @param {String} type
   * @api private
   */
  
  expect: function(type){
    if (this.peek().type === type) {
      return this.advance();
    } else {
      throw new Error('expected "' + type + '", but got "' + this.peek().type + '"');
    }
  },
  
  /**
   * Accept the given `type`.
   *
   * @param {String} type
   * @api private
   */
  
  accept: function(type){
    if (this.peek().type === type) {
      return this.advance();
    }
  },
  
  /**
   *   tag
   * | doctype
   * | mixin
   * | include
   * | filter
   * | comment
   * | text
   * | each
   * | code
   * | yield
   * | id
   * | class
   * | interpolation
   */
  
  parseExpr: function(){
    switch (this.peek().type) {
      case 'tag':
        return this.parseTag();
      case 'mixin':
        return this.parseMixin();
      case 'block':
        return this.parseBlock();
      case 'case':
        return this.parseCase();
      case 'when':
        return this.parseWhen();
      case 'default':
        return this.parseDefault();
      case 'extends':
        return this.parseExtends();
      case 'include':
        return this.parseInclude();
      case 'doctype':
        return this.parseDoctype();
      case 'filter':
        return this.parseFilter();
      case 'comment':
        return this.parseComment();
      case 'text':
        return this.parseText();
      case 'each':
        return this.parseEach();
      case 'code':
        return this.parseCode();
      case 'call':
        return this.parseCall();
      case 'interpolation':
        return this.parseInterpolation();
      case 'yield':
        this.advance();
        var block = new nodes.Block;
        block.yield = true;
        return block;
      case 'id':
      case 'class':
        var tok = this.advance();
        this.lexer.defer(this.lexer.tok('tag', 'div'));
        this.lexer.defer(tok);
        return this.parseExpr();
      default:
        throw new Error('unexpected token "' + this.peek().type + '"');
    }
  },
  
  /**
   * Text
   */
  
  parseText: function(){
    var tok = this.expect('text')
      , node = new nodes.Text(tok.val);
    node.line = this.line();
    return node;
  },

  /**
   *   ':' expr
   * | block
   */

  parseBlockExpansion: function(){
    if (':' == this.peek().type) {
      this.advance();
      return new nodes.Block(this.parseExpr());
    } else {
      return this.block();
    }
  },

  /**
   * case
   */

  parseCase: function(){
    var val = this.expect('case').val
      , node = new nodes.Case(val);
    node.line = this.line();
    node.block = this.block();
    return node;
  },

  /**
   * when
   */

  parseWhen: function(){
    var val = this.expect('when').val
    return new nodes.Case.When(val, this.parseBlockExpansion());
  },
  
  /**
   * default
   */

  parseDefault: function(){
    this.expect('default');
    return new nodes.Case.When('default', this.parseBlockExpansion());
  },

  /**
   * code
   */
  
  parseCode: function(){
    var tok = this.expect('code')
      , node = new nodes.Code(tok.val, tok.buffer, tok.escape)
      , block
      , i = 1;
    node.line = this.line();
    while (this.lookahead(i) && 'newline' == this.lookahead(i).type) ++i;
    block = 'indent' == this.lookahead(i).type;
    if (block) {
      this.skip(i-1);
      node.block = this.block();
    }
    return node;
  },
  
  /**
   * comment
   */
  
  parseComment: function(){
    var tok = this.expect('comment')
      , node;

    if ('indent' == this.peek().type) {
      node = new nodes.BlockComment(tok.val, this.block(), tok.buffer);
    } else {
      node = new nodes.Comment(tok.val, tok.buffer);
    }

    node.line = this.line();
    return node;
  },
  
  /**
   * doctype
   */
  
  parseDoctype: function(){
    var tok = this.expect('doctype')
      , node = new nodes.Doctype(tok.val);
    node.line = this.line();
    return node;
  },
  
  /**
   * filter attrs? text-block
   */
  
  parseFilter: function(){
    var block
      , tok = this.expect('filter')
      , attrs = this.accept('attrs');

    this.lexer.pipeless = true;
    block = this.parseTextBlock();
    this.lexer.pipeless = false;

    var node = new nodes.Filter(tok.val, block, attrs && attrs.attrs);
    node.line = this.line();
    return node;
  },
  
  /**
   * tag ':' attrs? block
   */
  
  parseASTFilter: function(){
    var block
      , tok = this.expect('tag')
      , attrs = this.accept('attrs');

    this.expect(':');
    block = this.block();

    var node = new nodes.Filter(tok.val, block, attrs && attrs.attrs);
    node.line = this.line();
    return node;
  },
  
  /**
   * each block
   */
  
  parseEach: function(){
    var tok = this.expect('each')
      , node = new nodes.Each(tok.code, tok.val, tok.key);
    node.line = this.line();
    node.block = this.block();
    if (this.peek().type == 'code' && this.peek().val == 'else') {
      this.advance();
      node.alternative = this.block();
    }
    return node;
  },

  /**
   * 'extends' name
   */

  parseExtends: function(){
    var path = require('path')
      , fs = require('fs')
      , dirname = path.dirname
      , basename = path.basename
      , join = path.join;

    if (!this.filename)
      throw new Error('the "filename" option is required to extend templates');

    var path = this.expect('extends').val.trim()
      , dir = dirname(this.filename);

    var path = join(dir, path + '.jade')
      , str = fs.readFileSync(path, 'utf8')
      , parser = new Parser(str, path, this.options);

    parser.blocks = this.blocks;
    parser.contexts = this.contexts;
    this.extending = parser;

    // TODO: null node
    return new nodes.Literal('');
  },

  /**
   * 'block' name block
   */

  parseBlock: function(){
    var block = this.expect('block')
      , mode = block.mode
      , name = block.val.trim();

    block = 'indent' == this.peek().type
      ? this.block()
      : new nodes.Block(new nodes.Literal(''));

    var prev = this.blocks[name];

    if (prev) {
      switch (prev.mode) {
        case 'append':
          block.nodes = block.nodes.concat(prev.nodes);
          prev = block;
          break;
        case 'prepend':
          block.nodes = prev.nodes.concat(block.nodes);
          prev = block;
          break;
      }
    }

    block.mode = mode;
    return this.blocks[name] = prev || block;
  },

  /**
   * include block?
   */

  parseInclude: function(){
    var path = require('path')
      , fs = require('fs')
      , dirname = path.dirname
      , basename = path.basename
      , join = path.join;

    var path = this.expect('include').val.trim()
      , dir = dirname(this.filename);

    if (!this.filename)
      throw new Error('the "filename" option is required to use includes');

    // no extension
    if (!~basename(path).indexOf('.')) {
      path += '.jade';
    }

    // non-jade
    if ('.jade' != path.substr(-5)) {
      var path = join(dir, path)
        , str = fs.readFileSync(path, 'utf8');
      return new nodes.Literal(str);
    }

    var path = join(dir, path)
      , str = fs.readFileSync(path, 'utf8')
     , parser = new Parser(str, path, this.options);
    parser.blocks = utils.merge({}, this.blocks);
    parser.mixins = this.mixins;

    this.context(parser);
    var ast = parser.parse();
    this.context();
    ast.filename = path;

    if ('indent' == this.peek().type) {
      ast.includeBlock().push(this.block());
    }

    return ast;
  },

  /**
   * call ident block
   */

  parseCall: function(){
    var tok = this.expect('call')
      , name = tok.val
      , args = tok.args
      , mixin = new nodes.Mixin(name, args, new nodes.Block, true);

    this.tag(mixin);
    if (mixin.block.isEmpty()) mixin.block = null;
    return mixin;
  },

  /**
   * mixin block
   */

  parseMixin: function(){
    var tok = this.expect('mixin')
      , name = tok.val
      , args = tok.args
      , mixin;

    // definition
    if ('indent' == this.peek().type) {
      mixin = new nodes.Mixin(name, args, this.block(), false);
      this.mixins[name] = mixin;
      return mixin;
    // call
    } else {
      return new nodes.Mixin(name, args, null, true);
    }
  },

  /**
   * indent (text | newline)* outdent
   */

  parseTextBlock: function(){
    var block = new nodes.Block;
    block.line = this.line();
    var spaces = this.expect('indent').val;
    if (null == this._spaces) this._spaces = spaces;
    var indent = Array(spaces - this._spaces + 1).join(' ');
    while ('outdent' != this.peek().type) {
      switch (this.peek().type) {
        case 'newline':
          this.advance();
          break;
        case 'indent':
          this.parseTextBlock().nodes.forEach(function(node){
            block.push(node);
          });
          break;
        default:
          var text = new nodes.Text(indent + this.advance().val);
          text.line = this.line();
          block.push(text);
      }
    }

    if (spaces == this._spaces) this._spaces = null;
    this.expect('outdent');
    return block;
  },

  /**
   * indent expr* outdent
   */
  
  block: function(){
    var block = new nodes.Block;
    block.line = this.line();
    this.expect('indent');
    while ('outdent' != this.peek().type) {
      if ('newline' == this.peek().type) {
        this.advance();
      } else {
        block.push(this.parseExpr());
      }
    }
    this.expect('outdent');
    return block;
  },

  /**
   * interpolation (attrs | class | id)* (text | code | ':')? newline* block?
   */
  
  parseInterpolation: function(){
    var tok = this.advance();
    var tag = new nodes.Tag(tok.val);
    tag.buffer = true;
    return this.tag(tag);
  },

  /**
   * tag (attrs | class | id)* (text | code | ':')? newline* block?
   */
  
  parseTag: function(){
    // ast-filter look-ahead
    var i = 2;
    if ('attrs' == this.lookahead(i).type) ++i;
    if (':' == this.lookahead(i).type) {
      if ('indent' == this.lookahead(++i).type) {
        return this.parseASTFilter();
      }
    }

    var tok = this.advance()
      , tag = new nodes.Tag(tok.val);

    tag.selfClosing = tok.selfClosing;

    return this.tag(tag);
  },

  /**
   * Parse tag.
   */

  tag: function(tag){
    var dot;

    tag.line = this.line();

    // (attrs | class | id)*
    out:
      while (true) {
        switch (this.peek().type) {
          case 'id':
          case 'class':
            var tok = this.advance();
            tag.setAttribute(tok.type, "'" + tok.val + "'");
            continue;
          case 'attrs':
            var tok = this.advance()
              , obj = tok.attrs
              , escaped = tok.escaped
              , names = Object.keys(obj);

            if (tok.selfClosing) tag.selfClosing = true;

            for (var i = 0, len = names.length; i < len; ++i) {
              var name = names[i]
                , val = obj[name];
              tag.setAttribute(name, val, escaped[name]);
            }
            continue;
          default:
            break out;
        }
      }

    // check immediate '.'
    if ('.' == this.peek().val) {
      dot = tag.textOnly = true;
      this.advance();
    }

    // (text | code | ':')?
    switch (this.peek().type) {
      case 'text':
        tag.block.push(this.parseText());
        break;
      case 'code':
        tag.code = this.parseCode();
        break;
      case ':':
        this.advance();
        tag.block = new nodes.Block;
        tag.block.push(this.parseExpr());
        break;
    }

    // newline*
    while ('newline' == this.peek().type) this.advance();

    tag.textOnly = tag.textOnly || ~textOnly.indexOf(tag.name);

    // script special-case
    if ('script' == tag.name) {
      var type = tag.getAttribute('type');
      if (!dot && type && 'text/javascript' != type.replace(/^['"]|['"]$/g, '')) {
        tag.textOnly = false;
      }
    }

    // block?
    if ('indent' == this.peek().type) {
      if (tag.textOnly) {
        this.lexer.pipeless = true;
        tag.block = this.parseTextBlock();
        this.lexer.pipeless = false;
      } else {
        var block = this.block();
        if (tag.block) {
          for (var i = 0, len = block.nodes.length; i < len; ++i) {
            tag.block.push(block.nodes[i]);
          }
        } else {
          tag.block = block;
        }
      }
    }
    
    return tag;
  }
};

}); // module: parser.js

require.register("runtime.js", function(module, exports, require){

/*!
 * Jade - runtime
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Lame Array.isArray() polyfill for now.
 */

if (!Array.isArray) {
  Array.isArray = function(arr){
    return '[object Array]' == Object.prototype.toString.call(arr);
  };
}

/**
 * Lame Object.keys() polyfill for now.
 */

if (!Object.keys) {
  Object.keys = function(obj){
    var arr = [];
    for (var key in obj) {
      if (obj.hasOwnProperty(key)) {
        arr.push(key);
      }
    }
    return arr;
  }
}

/**
 * Merge two attribute objects giving precedence
 * to values in object `b`. Classes are special-cased
 * allowing for arrays and merging/joining appropriately
 * resulting in a string.
 *
 * @param {Object} a
 * @param {Object} b
 * @return {Object} a
 * @api private
 */

exports.merge = function merge(a, b) {
  var ac = a['class'];
  var bc = b['class'];

  if (ac || bc) {
    ac = ac || [];
    bc = bc || [];
    if (!Array.isArray(ac)) ac = [ac];
    if (!Array.isArray(bc)) bc = [bc];
    ac = ac.filter(nulls);
    bc = bc.filter(nulls);
    a['class'] = ac.concat(bc).join(' ');
  }

  for (var key in b) {
    if (key != 'class') {
      a[key] = b[key];
    }
  }

  return a;
};

/**
 * Filter null `val`s.
 *
 * @param {Mixed} val
 * @return {Mixed}
 * @api private
 */

function nulls(val) {
  return val != null;
}

/**
 * Render the given attributes object.
 *
 * @param {Object} obj
 * @param {Object} escaped
 * @return {String}
 * @api private
 */

exports.attrs = function attrs(obj, escaped){
  var buf = []
    , terse = obj.terse;

  delete obj.terse;
  var keys = Object.keys(obj)
    , len = keys.length;

  if (len) {
    buf.push('');
    for (var i = 0; i < len; ++i) {
      var key = keys[i]
        , val = obj[key];

      if ('boolean' == typeof val || null == val) {
        if (val) {
          terse
            ? buf.push(key)
            : buf.push(key + '="' + key + '"');
        }
      } else if (0 == key.indexOf('data') && 'string' != typeof val) {
        buf.push(key + "='" + JSON.stringify(val) + "'");
      } else if ('class' == key && Array.isArray(val)) {
        buf.push(key + '="' + exports.escape(val.join(' ')) + '"');
      } else if (escaped && escaped[key]) {
        buf.push(key + '="' + exports.escape(val) + '"');
      } else {
        buf.push(key + '="' + val + '"');
      }
    }
  }

  return buf.join(' ');
};

/**
 * Escape the given string of `html`.
 *
 * @param {String} html
 * @return {String}
 * @api private
 */

exports.escape = function escape(html){
  return String(html)
    .replace(/&(?!(\w+|\#\d+);)/g, '&amp;')
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;')
    .replace(/"/g, '&quot;');
};

/**
 * Re-throw the given `err` in context to the
 * the jade in `filename` at the given `lineno`.
 *
 * @param {Error} err
 * @param {String} filename
 * @param {String} lineno
 * @api private
 */

exports.rethrow = function rethrow(err, filename, lineno){
  if (!filename) throw err;

  var context = 3
    , str = require('fs').readFileSync(filename, 'utf8')
    , lines = str.split('\n')
    , start = Math.max(lineno - context, 0)
    , end = Math.min(lines.length, lineno + context);

  // Error context
  var context = lines.slice(start, end).map(function(line, i){
    var curr = i + start + 1;
    return (curr == lineno ? '  > ' : '    ')
      + curr
      + '| '
      + line;
  }).join('\n');

  // Alter exception message
  err.path = filename;
  err.message = (filename || 'Jade') + ':' + lineno
    + '\n' + context + '\n\n' + err.message;
  throw err;
};

}); // module: runtime.js

require.register("self-closing.js", function(module, exports, require){

/*!
 * Jade - self closing tags
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

module.exports = [
    'meta'
  , 'img'
  , 'link'
  , 'input'
  , 'source'
  , 'area'
  , 'base'
  , 'col'
  , 'br'
  , 'hr'
];
}); // module: self-closing.js

require.register("utils.js", function(module, exports, require){

/*!
 * Jade - utils
 * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
 * MIT Licensed
 */

/**
 * Convert interpolation in the given string to JavaScript.
 *
 * @param {String} str
 * @return {String}
 * @api private
 */

var interpolate = exports.interpolate = function(str){
  return str.replace(/(_SLASH_)?([#!]){(.*?)}/g, function(str, escape, flag, code){
    code = code
      .replace(/\\'/g, "'")
      .replace(/_SLASH_/g, '\\');

    return escape
      ? str.slice(7)
      : "' + "
        + ('!' == flag ? '' : 'escape')
        + "((interp = " + code
        + ") == null ? '' : interp) + '";
  });
};

/**
 * Escape single quotes in `str`.
 *
 * @param {String} str
 * @return {String}
 * @api private
 */

var escape = exports.escape = function(str) {
  return str.replace(/'/g, "\\'");
};

/**
 * Interpolate, and escape the given `str`.
 *
 * @param {String} str
 * @return {String}
 * @api private
 */

exports.text = function(str){
  return interpolate(escape(str));
};

/**
 * Merge `b` into `a`.
 *
 * @param {Object} a
 * @param {Object} b
 * @return {Object}
 * @api public
 */

exports.merge = function(a, b) {
  for (var key in b) a[key] = b[key];
  return a;
};


}); // module: utils.js

window.jade = require("jade");
})();