Brunobkr/llama.cpp_AlgMor24_github

1/*2 * EJS Embedded JavaScript templates3 * Copyright 2112 Matthew Eernisse (mde@fleegix.org)4 *5 * Licensed under the Apache License, Version 2.0 (the "License");6 * you may not use this file except in compliance with the License.7 * You may obtain a copy of the License at8 *9 *         http://www.apache.org/licenses/LICENSE-2.010 *11 * Unless required by applicable law or agreed to in writing, software12 * distributed under the License is distributed on an "AS IS" BASIS,13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.14 * See the License for the specific language governing permissions and15 * limitations under the License.16 *17*/18 19'use strict';20 21/**22 * @file Embedded JavaScript templating engine. {@link http://ejs.co}23 * @author Matthew Eernisse <mde@fleegix.org>24 * @author Tiancheng "Timothy" Gu <timothygu99@gmail.com>25 * @project EJS26 * @license {@link http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0}27 */28 29/**30 * EJS internal functions.31 *32 * Technically this "module" lies in the same file as {@link module:ejs}, for33 * the sake of organization all the private functions re grouped into this34 * module.35 *36 * @module ejs-internal37 * @private38 */39 40/**41 * Embedded JavaScript templating engine.42 *43 * @module ejs44 * @public45 */46 47 48var fs = require('fs');49var path = require('path');50var utils = require('./utils');51 52var scopeOptionWarned = false;53/** @type {string} */54var _VERSION_STRING = require('../package.json').version;55var _DEFAULT_OPEN_DELIMITER = '<';56var _DEFAULT_CLOSE_DELIMITER = '>';57var _DEFAULT_DELIMITER = '%';58var _DEFAULT_LOCALS_NAME = 'locals';59var _NAME = 'ejs';60var _REGEX_STRING = '(<%%|%%>|<%=|<%-|<%_|<%#|<%|%>|-%>|_%>)';61var _OPTS_PASSABLE_WITH_DATA = ['delimiter', 'scope', 'context', 'debug', 'compileDebug',62  'client', '_with', 'rmWhitespace', 'strict', 'filename', 'async'];63// We don't allow 'cache' option to be passed in the data obj for64// the normal `render` call, but this is where Express 2 & 3 put it65// so we make an exception for `renderFile`66var _OPTS_PASSABLE_WITH_DATA_EXPRESS = _OPTS_PASSABLE_WITH_DATA.concat('cache');67var _BOM = /^\uFEFF/;68var _JS_IDENTIFIER = /^[a-zA-Z_$][0-9a-zA-Z_$]*$/;69 70/**71 * EJS template function cache. This can be a LRU object from lru-cache NPM72 * module. By default, it is {@link module:utils.cache}, a simple in-process73 * cache that grows continuously.74 *75 * @type {Cache}76 */77 78exports.cache = utils.cache;79 80/**81 * Custom file loader. Useful for template preprocessing or restricting access82 * to a certain part of the filesystem.83 *84 * @type {fileLoader}85 */86 87exports.fileLoader = fs.readFileSync;88 89/**90 * Name of the object containing the locals.91 *92 * This variable is overridden by {@link Options}`.localsName` if it is not93 * `undefined`.94 *95 * @type {String}96 * @public97 */98 99exports.localsName = _DEFAULT_LOCALS_NAME;100 101/**102 * Promise implementation -- defaults to the native implementation if available103 * This is mostly just for testability104 *105 * @type {PromiseConstructorLike}106 * @public107 */108 109exports.promiseImpl = (new Function('return this;'))().Promise;110 111/**112 * Get the path to the included file from the parent file path and the113 * specified path.114 *115 * @param {String}  name     specified path116 * @param {String}  filename parent file path117 * @param {Boolean} [isDir=false] whether the parent file path is a directory118 * @return {String}119 */120exports.resolveInclude = function(name, filename, isDir) {121  var dirname = path.dirname;122  var extname = path.extname;123  var resolve = path.resolve;124  var includePath = resolve(isDir ? filename : dirname(filename), name);125  var ext = extname(name);126  if (!ext) {127    includePath += '.ejs';128  }129  return includePath;130};131 132/**133 * Try to resolve file path on multiple directories134 *135 * @param  {String}        name  specified path136 * @param  {Array<String>} paths list of possible parent directory paths137 * @return {String}138 */139function resolvePaths(name, paths) {140  var filePath;141  if (paths.some(function (v) {142    filePath = exports.resolveInclude(name, v, true);143    return fs.existsSync(filePath);144  })) {145    return filePath;146  }147}148 149/**150 * Get the path to the included file by Options151 *152 * @param  {String}  path    specified path153 * @param  {Options} options compilation options154 * @return {String}155 */156function getIncludePath(path, options) {157  var includePath;158  var filePath;159  var views = options.views;160  var match = /^[A-Za-z]+:\\|^\//.exec(path);161 162  // Abs path163  if (match && match.length) {164    path = path.replace(/^\/*/, '');165    if (Array.isArray(options.root)) {166      includePath = resolvePaths(path, options.root);167    } else {168      includePath = exports.resolveInclude(path, options.root || '/', true);169    }170  }171  // Relative paths172  else {173    // Look relative to a passed filename first174    if (options.filename) {175      filePath = exports.resolveInclude(path, options.filename);176      if (fs.existsSync(filePath)) {177        includePath = filePath;178      }179    }180    // Then look in any views directories181    if (!includePath && Array.isArray(views)) {182      includePath = resolvePaths(path, views);183    }184    if (!includePath && typeof options.includer !== 'function') {185      throw new Error('Could not find the include file "' +186          options.escapeFunction(path) + '"');187    }188  }189  return includePath;190}191 192/**193 * Get the template from a string or a file, either compiled on-the-fly or194 * read from cache (if enabled), and cache the template if needed.195 *196 * If `template` is not set, the file specified in `options.filename` will be197 * read.198 *199 * If `options.cache` is true, this function reads the file from200 * `options.filename` so it must be set prior to calling this function.201 *202 * @memberof module:ejs-internal203 * @param {Options} options   compilation options204 * @param {String} [template] template source205 * @return {(TemplateFunction|ClientFunction)}206 * Depending on the value of `options.client`, either type might be returned.207 * @static208 */209 210function handleCache(options, template) {211  var func;212  var filename = options.filename;213  var hasTemplate = arguments.length > 1;214 215  if (options.cache) {216    if (!filename) {217      throw new Error('cache option requires a filename');218    }219    func = exports.cache.get(filename);220    if (func) {221      return func;222    }223    if (!hasTemplate) {224      template = fileLoader(filename).toString().replace(_BOM, '');225    }226  }227  else if (!hasTemplate) {228    // istanbul ignore if: should not happen at all229    if (!filename) {230      throw new Error('Internal EJS error: no file name or template '231                    + 'provided');232    }233    template = fileLoader(filename).toString().replace(_BOM, '');234  }235  func = exports.compile(template, options);236  if (options.cache) {237    exports.cache.set(filename, func);238  }239  return func;240}241 242/**243 * Try calling handleCache with the given options and data and call the244 * callback with the result. If an error occurs, call the callback with245 * the error. Used by renderFile().246 *247 * @memberof module:ejs-internal248 * @param {Options} options    compilation options249 * @param {Object} data        template data250 * @param {RenderFileCallback} cb callback251 * @static252 */253 254function tryHandleCache(options, data, cb) {255  var result;256  if (!cb) {257    if (typeof exports.promiseImpl == 'function') {258      return new exports.promiseImpl(function (resolve, reject) {259        try {260          result = handleCache(options)(data);261          resolve(result);262        }263        catch (err) {264          reject(err);265        }266      });267    }268    else {269      throw new Error('Please provide a callback function');270    }271  }272  else {273    try {274      result = handleCache(options)(data);275    }276    catch (err) {277      return cb(err);278    }279 280    cb(null, result);281  }282}283 284/**285 * fileLoader is independent286 *287 * @param {String} filePath ejs file path.288 * @return {String} The contents of the specified file.289 * @static290 */291 292function fileLoader(filePath){293  return exports.fileLoader(filePath);294}295 296/**297 * Get the template function.298 *299 * If `options.cache` is `true`, then the template is cached.300 *301 * @memberof module:ejs-internal302 * @param {String}  path    path for the specified file303 * @param {Options} options compilation options304 * @return {(TemplateFunction|ClientFunction)}305 * Depending on the value of `options.client`, either type might be returned306 * @static307 */308 309function includeFile(path, options) {310  var opts = utils.shallowCopy(utils.createNullProtoObjWherePossible(), options);311  opts.filename = getIncludePath(path, opts);312  if (typeof options.includer === 'function') {313    var includerResult = options.includer(path, opts.filename);314    if (includerResult) {315      if (includerResult.filename) {316        opts.filename = includerResult.filename;317      }318      if (includerResult.template) {319        return handleCache(opts, includerResult.template);320      }321    }322  }323  return handleCache(opts);324}325 326/**327 * Re-throw the given `err` in context to the `str` of ejs, `filename`, and328 * `lineno`.329 *330 * @implements {RethrowCallback}331 * @memberof module:ejs-internal332 * @param {Error}  err      Error object333 * @param {String} str      EJS source334 * @param {String} flnm     file name of the EJS file335 * @param {Number} lineno   line number of the error336 * @param {EscapeCallback} esc337 * @static338 */339 340function rethrow(err, str, flnm, lineno, esc) {341  var lines = str.split('\n');342  var start = Math.max(lineno - 3, 0);343  var end = Math.min(lines.length, lineno + 3);344  var filename = esc(flnm);345  // Error context346  var context = lines.slice(start, end).map(function (line, i){347    var curr = i + start + 1;348    return (curr == lineno ? ' >> ' : '    ')349      + curr350      + '| '351      + line;352  }).join('\n');353 354  // Alter exception message355  err.path = filename;356  err.message = (filename || 'ejs') + ':'357    + lineno + '\n'358    + context + '\n\n'359    + err.message;360 361  throw err;362}363 364function stripSemi(str){365  return str.replace(/;(\s*$)/, '$1');366}367 368/**369 * Compile the given `str` of ejs into a template function.370 *371 * @param {String}  template EJS template372 *373 * @param {Options} [opts] compilation options374 *375 * @return {(TemplateFunction|ClientFunction)}376 * Depending on the value of `opts.client`, either type might be returned.377 * Note that the return type of the function also depends on the value of `opts.async`.378 * @public379 */380 381exports.compile = function compile(template, opts) {382  var templ;383 384  // v1 compat385  // 'scope' is 'context'386  // FIXME: Remove this in a future version387  if (opts && opts.scope) {388    if (!scopeOptionWarned){389      console.warn('`scope` option is deprecated and will be removed in EJS 3');390      scopeOptionWarned = true;391    }392    if (!opts.context) {393      opts.context = opts.scope;394    }395    delete opts.scope;396  }397  templ = new Template(template, opts);398  return templ.compile();399};400 401/**402 * Render the given `template` of ejs.403 *404 * If you would like to include options but not data, you need to explicitly405 * call this function with `data` being an empty object or `null`.406 *407 * @param {String}   template EJS template408 * @param {Object}  [data={}] template data409 * @param {Options} [opts={}] compilation and rendering options410 * @return {(String|Promise<String>)}411 * Return value type depends on `opts.async`.412 * @public413 */414 415exports.render = function (template, d, o) {416  var data = d || utils.createNullProtoObjWherePossible();417  var opts = o || utils.createNullProtoObjWherePossible();418 419  // No options object -- if there are optiony names420  // in the data, copy them to options421  if (arguments.length == 2) {422    utils.shallowCopyFromList(opts, data, _OPTS_PASSABLE_WITH_DATA);423  }424 425  return handleCache(opts, template)(data);426};427 428/**429 * Render an EJS file at the given `path` and callback `cb(err, str)`.430 *431 * If you would like to include options but not data, you need to explicitly432 * call this function with `data` being an empty object or `null`.433 *434 * @param {String}             path     path to the EJS file435 * @param {Object}            [data={}] template data436 * @param {Options}           [opts={}] compilation and rendering options437 * @param {RenderFileCallback} cb callback438 * @public439 */440 441exports.renderFile = function () {442  var args = Array.prototype.slice.call(arguments);443  var filename = args.shift();444  var cb;445  var opts = {filename: filename};446  var data;447  var viewOpts;448 449  // Do we have a callback?450  if (typeof arguments[arguments.length - 1] == 'function') {451    cb = args.pop();452  }453  // Do we have data/opts?454  if (args.length) {455    // Should always have data obj456    data = args.shift();457    // Normal passed opts (data obj + opts obj)458    if (args.length) {459      // Use shallowCopy so we don't pollute passed in opts obj with new vals460      utils.shallowCopy(opts, args.pop());461    }462    // Special casing for Express (settings + opts-in-data)463    else {464      // Express 3 and 4465      if (data.settings) {466        // Pull a few things from known locations467        if (data.settings.views) {468          opts.views = data.settings.views;469        }470        if (data.settings['view cache']) {471          opts.cache = true;472        }473        // Undocumented after Express 2, but still usable, esp. for474        // items that are unsafe to be passed along with data, like `root`475        viewOpts = data.settings['view options'];476        if (viewOpts) {477          utils.shallowCopy(opts, viewOpts);478        }479      }480      // Express 2 and lower, values set in app.locals, or people who just481      // want to pass options in their data. NOTE: These values will override482      // anything previously set in settings  or settings['view options']483      utils.shallowCopyFromList(opts, data, _OPTS_PASSABLE_WITH_DATA_EXPRESS);484    }485    opts.filename = filename;486  }487  else {488    data = utils.createNullProtoObjWherePossible();489  }490 491  return tryHandleCache(opts, data, cb);492};493 494/**495 * Clear intermediate JavaScript cache. Calls {@link Cache#reset}.496 * @public497 */498 499/**500 * EJS template class501 * @public502 */503exports.Template = Template;504 505exports.clearCache = function () {506  exports.cache.reset();507};508 509function Template(text, optsParam) {510  var opts = utils.hasOwnOnlyObject(optsParam);511  var options = utils.createNullProtoObjWherePossible();512  this.templateText = text;513  /** @type {string | null} */514  this.mode = null;515  this.truncate = false;516  this.currentLine = 1;517  this.source = '';518  options.client = opts.client || false;519  options.escapeFunction = opts.escape || opts.escapeFunction || utils.escapeXML;520  options.compileDebug = opts.compileDebug !== false;521  options.debug = !!opts.debug;522  options.filename = opts.filename;523  options.openDelimiter = opts.openDelimiter || exports.openDelimiter || _DEFAULT_OPEN_DELIMITER;524  options.closeDelimiter = opts.closeDelimiter || exports.closeDelimiter || _DEFAULT_CLOSE_DELIMITER;525  options.delimiter = opts.delimiter || exports.delimiter || _DEFAULT_DELIMITER;526  options.strict = opts.strict || false;527  options.context = opts.context;528  options.cache = opts.cache || false;529  options.rmWhitespace = opts.rmWhitespace;530  options.root = opts.root;531  options.includer = opts.includer;532  options.outputFunctionName = opts.outputFunctionName;533  options.localsName = opts.localsName || exports.localsName || _DEFAULT_LOCALS_NAME;534  options.views = opts.views;535  options.async = opts.async;536  options.destructuredLocals = opts.destructuredLocals;537  options.legacyInclude = typeof opts.legacyInclude != 'undefined' ? !!opts.legacyInclude : true;538 539  if (options.strict) {540    options._with = false;541  }542  else {543    options._with = typeof opts._with != 'undefined' ? opts._with : true;544  }545 546  this.opts = options;547 548  this.regex = this.createRegex();549}550 551Template.modes = {552  EVAL: 'eval',553  ESCAPED: 'escaped',554  RAW: 'raw',555  COMMENT: 'comment',556  LITERAL: 'literal'557};558 559Template.prototype = {560  createRegex: function () {561    var str = _REGEX_STRING;562    var delim = utils.escapeRegExpChars(this.opts.delimiter);563    var open = utils.escapeRegExpChars(this.opts.openDelimiter);564    var close = utils.escapeRegExpChars(this.opts.closeDelimiter);565    str = str.replace(/%/g, delim)566      .replace(/</g, open)567      .replace(/>/g, close);568    return new RegExp(str);569  },570 571  compile: function () {572    /** @type {string} */573    var src;574    /** @type {ClientFunction} */575    var fn;576    var opts = this.opts;577    var prepended = '';578    var appended = '';579    /** @type {EscapeCallback} */580    var escapeFn = opts.escapeFunction;581    /** @type {FunctionConstructor} */582    var ctor;583    /** @type {string} */584    var sanitizedFilename = opts.filename ? JSON.stringify(opts.filename) : 'undefined';585 586    if (!this.source) {587      this.generateSource();588      prepended +=589        '  var __output = "";\n' +590        '  function __append(s) { if (s !== undefined && s !== null) __output += s }\n';591      if (opts.outputFunctionName) {592        if (!_JS_IDENTIFIER.test(opts.outputFunctionName)) {593          throw new Error('outputFunctionName is not a valid JS identifier.');594        }595        prepended += '  var ' + opts.outputFunctionName + ' = __append;' + '\n';596      }597      if (opts.localsName && !_JS_IDENTIFIER.test(opts.localsName)) {598        throw new Error('localsName is not a valid JS identifier.');599      }600      if (opts.destructuredLocals && opts.destructuredLocals.length) {601        var destructuring = '  var __locals = (' + opts.localsName + ' || {}),\n';602        for (var i = 0; i < opts.destructuredLocals.length; i++) {603          var name = opts.destructuredLocals[i];604          if (!_JS_IDENTIFIER.test(name)) {605            throw new Error('destructuredLocals[' + i + '] is not a valid JS identifier.');606          }607          if (i > 0) {608            destructuring += ',\n  ';609          }610          destructuring += name + ' = __locals.' + name;611        }612        prepended += destructuring + ';\n';613      }614      if (opts._with !== false) {615        prepended +=  '  with (' + opts.localsName + ' || {}) {' + '\n';616        appended += '  }' + '\n';617      }618      appended += '  return __output;' + '\n';619      this.source = prepended + this.source + appended;620    }621 622    if (opts.compileDebug) {623      src = 'var __line = 1' + '\n'624        + '  , __lines = ' + JSON.stringify(this.templateText) + '\n'625        + '  , __filename = ' + sanitizedFilename + ';' + '\n'626        + 'try {' + '\n'627        + this.source628        + '} catch (e) {' + '\n'629        + '  rethrow(e, __lines, __filename, __line, escapeFn);' + '\n'630        + '}' + '\n';631    }632    else {633      src = this.source;634    }635 636    if (opts.client) {637      src = 'escapeFn = escapeFn || ' + escapeFn.toString() + ';' + '\n' + src;638      if (opts.compileDebug) {639        src = 'rethrow = rethrow || ' + rethrow.toString() + ';' + '\n' + src;640      }641    }642 643    if (opts.strict) {644      src = '"use strict";\n' + src;645    }646    if (opts.debug) {647      console.log(src);648    }649    if (opts.compileDebug && opts.filename) {650      src = src + '\n'651        + '//# sourceURL=' + sanitizedFilename + '\n';652    }653 654    try {655      if (opts.async) {656        // Have to use generated function for this, since in envs without support,657        // it breaks in parsing658        try {659          ctor = (new Function('return (async function(){}).constructor;'))();660        }661        catch(e) {662          if (e instanceof SyntaxError) {663            throw new Error('This environment does not support async/await');664          }665          else {666            throw e;667          }668        }669      }670      else {671        ctor = Function;672      }673      fn = new ctor(opts.localsName + ', escapeFn, include, rethrow', src);674    }675    catch(e) {676      // istanbul ignore else677      if (e instanceof SyntaxError) {678        if (opts.filename) {679          e.message += ' in ' + opts.filename;680        }681        e.message += ' while compiling ejs\n\n';682        e.message += 'If the above error is not helpful, you may want to try EJS-Lint:\n';683        e.message += 'https://github.com/RyanZim/EJS-Lint';684        if (!opts.async) {685          e.message += '\n';686          e.message += 'Or, if you meant to create an async function, pass `async: true` as an option.';687        }688      }689      throw e;690    }691 692    // Return a callable function which will execute the function693    // created by the source-code, with the passed data as locals694    // Adds a local `include` function which allows full recursive include695    var returnedFn = opts.client ? fn : function anonymous(data) {696      var include = function (path, includeData) {697        var d = utils.shallowCopy(utils.createNullProtoObjWherePossible(), data);698        if (includeData) {699          d = utils.shallowCopy(d, includeData);700        }701        return includeFile(path, opts)(d);702      };703      return fn.apply(opts.context,704        [data || utils.createNullProtoObjWherePossible(), escapeFn, include, rethrow]);705    };706    if (opts.filename && typeof Object.defineProperty === 'function') {707      var filename = opts.filename;708      var basename = path.basename(filename, path.extname(filename));709      try {710        Object.defineProperty(returnedFn, 'name', {711          value: basename,712          writable: false,713          enumerable: false,714          configurable: true715        });716      } catch (e) {/* ignore */}717    }718    return returnedFn;719  },720 721  generateSource: function () {722    var opts = this.opts;723 724    if (opts.rmWhitespace) {725      // Have to use two separate replace here as `^` and `$` operators don't726      // work well with `\r` and empty lines don't work well with the `m` flag.727      this.templateText =728        this.templateText.replace(/[\r\n]+/g, '\n').replace(/^\s+|\s+$/gm, '');729    }730 731    // Slurp spaces and tabs before <%_ and after _%>732    this.templateText =733      this.templateText.replace(/[ \t]*<%_/gm, '<%_').replace(/_%>[ \t]*/gm, '_%>');734 735    var self = this;736    var matches = this.parseTemplateText();737    var d = this.opts.delimiter;738    var o = this.opts.openDelimiter;739    var c = this.opts.closeDelimiter;740 741    if (matches && matches.length) {742      matches.forEach(function (line, index) {743        var closing;744        // If this is an opening tag, check for closing tags745        // FIXME: May end up with some false positives here746        // Better to store modes as k/v with openDelimiter + delimiter as key747        // Then this can simply check against the map748        if ( line.indexOf(o + d) === 0        // If it is a tag749          && line.indexOf(o + d + d) !== 0) { // and is not escaped750          closing = matches[index + 2];751          if (!(closing == d + c || closing == '-' + d + c || closing == '_' + d + c)) {752            throw new Error('Could not find matching close tag for "' + line + '".');753          }754        }755        self.scanLine(line);756      });757    }758 759  },760 761  parseTemplateText: function () {762    var str = this.templateText;763    var pat = this.regex;764    var result = pat.exec(str);765    var arr = [];766    var firstPos;767 768    while (result) {769      firstPos = result.index;770 771      if (firstPos !== 0) {772        arr.push(str.substring(0, firstPos));773        str = str.slice(firstPos);774      }775 776      arr.push(result[0]);777      str = str.slice(result[0].length);778      result = pat.exec(str);779    }780 781    if (str) {782      arr.push(str);783    }784 785    return arr;786  },787 788  _addOutput: function (line) {789    if (this.truncate) {790      // Only replace single leading linebreak in the line after791      // -%> tag -- this is the single, trailing linebreak792      // after the tag that the truncation mode replaces793      // Handle Win / Unix / old Mac linebreaks -- do the \r\n794      // combo first in the regex-or795      line = line.replace(/^(?:\r\n|\r|\n)/, '');796      this.truncate = false;797    }798    if (!line) {799      return line;800    }801 802    // Preserve literal slashes803    line = line.replace(/\\/g, '\\\\');804 805    // Convert linebreaks806    line = line.replace(/\n/g, '\\n');807    line = line.replace(/\r/g, '\\r');808 809    // Escape double-quotes810    // - this will be the delimiter during execution811    line = line.replace(/"/g, '\\"');812    this.source += '    ; __append("' + line + '")' + '\n';813  },814 815  scanLine: function (line) {816    var self = this;817    var d = this.opts.delimiter;818    var o = this.opts.openDelimiter;819    var c = this.opts.closeDelimiter;820    var newLineCount = 0;821 822    newLineCount = (line.split('\n').length - 1);823 824    switch (line) {825    case o + d:826    case o + d + '_':827      this.mode = Template.modes.EVAL;828      break;829    case o + d + '=':830      this.mode = Template.modes.ESCAPED;831      break;832    case o + d + '-':833      this.mode = Template.modes.RAW;834      break;835    case o + d + '#':836      this.mode = Template.modes.COMMENT;837      break;838    case o + d + d:839      this.mode = Template.modes.LITERAL;840      this.source += '    ; __append("' + line.replace(o + d + d, o + d) + '")' + '\n';841      break;842    case d + d + c:843      this.mode = Template.modes.LITERAL;844      this.source += '    ; __append("' + line.replace(d + d + c, d + c) + '")' + '\n';845      break;846    case d + c:847    case '-' + d + c:848    case '_' + d + c:849      if (this.mode == Template.modes.LITERAL) {850        this._addOutput(line);851      }852 853      this.mode = null;854      this.truncate = line.indexOf('-') === 0 || line.indexOf('_') === 0;855      break;856    default:857      // In script mode, depends on type of tag858      if (this.mode) {859        // If '//' is found without a line break, add a line break.860        switch (this.mode) {861        case Template.modes.EVAL:862        case Template.modes.ESCAPED:863        case Template.modes.RAW:864          if (line.lastIndexOf('//') > line.lastIndexOf('\n')) {865            line += '\n';866          }867        }868        switch (this.mode) {869        // Just executing code870        case Template.modes.EVAL:871          this.source += '    ; ' + line + '\n';872          break;873          // Exec, esc, and output874        case Template.modes.ESCAPED:875          this.source += '    ; __append(escapeFn(' + stripSemi(line) + '))' + '\n';876          break;877          // Exec and output878        case Template.modes.RAW:879          this.source += '    ; __append(' + stripSemi(line) + ')' + '\n';880          break;881        case Template.modes.COMMENT:882          // Do nothing883          break;884          // Literal <%% mode, append as raw output885        case Template.modes.LITERAL:886          this._addOutput(line);887          break;888        }889      }890      // In string mode, just add the output891      else {892        this._addOutput(line);893      }894    }895 896    if (self.opts.compileDebug && newLineCount) {897      this.currentLine += newLineCount;898      this.source += '    ; __line = ' + this.currentLine + '\n';899    }900  }901};902 903/**904 * Escape characters reserved in XML.905 *906 * This is simply an export of {@link module:utils.escapeXML}.907 *908 * If `markup` is `undefined` or `null`, the empty string is returned.909 *910 * @param {String} markup Input string911 * @return {String} Escaped string912 * @public913 * @func914 * */915exports.escapeXML = utils.escapeXML;916 917/**918 * Express.js support.919 *920 * This is an alias for {@link module:ejs.renderFile}, in order to support921 * Express.js out-of-the-box.922 *923 * @func924 */925 926exports.__express = exports.renderFile;927 928/**929 * Version of EJS.930 *931 * @readonly932 * @type {String}933 * @public934 */935 936exports.VERSION = _VERSION_STRING;937 938/**939 * Name for detection of EJS.940 *941 * @readonly942 * @type {String}943 * @public944 */945 946exports.name = _NAME;947 948/* istanbul ignore if */949if (typeof window != 'undefined') {950  window.ejs = exports;951}952 953