mustache - npm Package Compare versions

Comparing version 0.4.0 to 0.5.1-dev

mustache.js

@@ -1,45 +0,83 @@
-/*
- * CommonJS-compatible mustache.js module
- *
- * See http://github.com/janl/mustache.js for more info.
+/*!
+ * mustache.js - Logic-less {{mustache}} templates with JavaScript
+ * http://github.com/janl/mustache.js
  */
 
-/*
-  mustache.js — Logic-less templates in JavaScript
+/*global define: false*/
 
-  See http://mustache.github.com/ for more info.
-*/
+var Mustache;
 
-var Mustache = function () {
-  var _toString = Object.prototype.toString;
-
-  Array.isArray = Array.isArray || function (obj) {
-    return _toString.call(obj) == "[object Array]";
+(function (exports) {
+  if (typeof module !== "undefined") {
+    module.exports = exports; // CommonJS
+  } else if (typeof define === "function") {
+    define(exports); // AMD
+  } else {
+    Mustache = exports; // <script>
   }
+}((function () {
+  var exports = {};
 
-  var _trim = String.prototype.trim, trim;
+  exports.name = "mustache.js";
+  exports.version = "0.5.2";
+  exports.tags = ["{{", "}}"];
 
-  if (_trim) {
-    trim = function (text) {
-      return text == null ? "" : _trim.call(text);
-    }
-  } else {
-    var trimLeft, trimRight;
+  exports.parse = parse;
+  exports.clearCache = clearCache;
+  exports.compile = compile;
+  exports.compilePartial = compilePartial;
+  exports.render = render;
 
-    // IE doesn't match non-breaking spaces with \s.
-    if ((/\S/).test("\xA0")) {
-      trimLeft = /^[\s\xA0]+/;
-      trimRight = /[\s\xA0]+$/;
+  exports.Scanner = Scanner;
+  exports.Context = Context;
+  exports.Renderer = Renderer;
+
+  // This is here for backwards compatibility with 0.4.x.
+  exports.to_html = function (template, view, partials, send) {
+    var result = render(template, view, partials);
+
+    if (typeof send === "function") {
+      send(result);
     } else {
-      trimLeft = /^\s+/;
-      trimRight = /\s+$/;
+      return result;
     }
+  };
 
-    trim = function (text) {
-      return text == null ? "" :
-        text.toString().replace(trimLeft, "").replace(trimRight, "");
-    }
+  var whiteRe = /\s*/;
+  var spaceRe = /\s+/;
+  var nonSpaceRe = /\S/;
+  var eqRe = /\s*=/;
+  var curlyRe = /\s*\}/;
+  var tagRe = /#|\^|\/|>|\{|&|=|!/;
+
+  // Workaround for https://issues.apache.org/jira/browse/COUCHDB-577
+  // See https://github.com/janl/mustache.js/issues/189
+  function testRe(re, string) {
+    return RegExp.prototype.test.call(re, string);
   }
 
-  var escapeMap = {
+  function isWhitespace(string) {
+    return !testRe(nonSpaceRe, string);
+  }
+
+  var isArray = Array.isArray || function (obj) {
+    return Object.prototype.toString.call(obj) === "[object Array]";
+  };
+
+  // OSWASP Guidelines: escape all non alphanumeric characters in ASCII space.
+  var jsCharsRe = /[\x00-\x2F\x3A-\x40\x5B-\x60\x7B-\xFF\u2028\u2029]/gm;
+
+  function quote(text) {
+    var escaped = text.replace(jsCharsRe, function (c) {
+      return "\\u" + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);
+    });
+
+    return '"' + escaped + '"';
+  }
+
+  function escapeRe(string) {
+    return string.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&");
+  }
+
+  var entityMap = {
     "&": "&amp;",
@@ -49,403 +87,528 @@ "<": "&lt;",
     '"': '&quot;',
-    "'": '&#39;'
+    "'": '&#39;',
+    "/": '&#x2F;'
   };
 
-  function escapeHTML(string) {
-    return String(string).replace(/&(?!\w+;)|[<>"']/g, function (s) {
-      return escapeMap[s] || s;
+  function escapeHtml(string) {
+    return String(string).replace(/[&<>"'\/]/g, function (s) {
+      return entityMap[s];
     });
   }
 
-  var regexCache = {};
-  var Renderer = function () {};
+  // Export these utility functions.
+  exports.isWhitespace = isWhitespace;
+  exports.isArray = isArray;
+  exports.quote = quote;
+  exports.escapeRe = escapeRe;
+  exports.escapeHtml = escapeHtml;
 
-  Renderer.prototype = {
-    otag: "{{",
-    ctag: "}}",
-    pragmas: {},
-    buffer: [],
-    pragmas_implemented: {
-      "IMPLICIT-ITERATOR": true
-    },
-    context: {},
+  function Scanner(string) {
+    this.string = string;
+    this.tail = string;
+    this.pos = 0;
+  }
 
-    render: function (template, context, partials, in_recursion) {
-      // reset buffer & set context
-      if (!in_recursion) {
-        this.context = context;
-        this.buffer = []; // TODO: make this non-lazy
-      }
+  /**
+   * Returns `true` if the tail is empty (end of string).
+   */
+  Scanner.prototype.eos = function () {
+    return this.tail === "";
+  };
 
-      // fail fast
-      if (!this.includes("", template)) {
-        if (in_recursion) {
-          return template;
-        } else {
-          this.send(template);
-          return;
-        }
-      }
+  /**
+   * Tries to match the given regular expression at the current position.
+   * Returns the matched text if it can match, the empty string otherwise.
+   */
+  Scanner.prototype.scan = function (re) {
+    var match = this.tail.match(re);
 
-      // get the pragmas together
-      template = this.render_pragmas(template);
+    if (match && match.index === 0) {
+      this.tail = this.tail.substring(match[0].length);
+      this.pos += match[0].length;
+      return match[0];
+    }
 
-      // render the template
-      var html = this.render_section(template, context, partials);
+    return "";
+  };
 
-      // render_section did not find any sections, we still need to render the tags
-      if (html === false) {
-        html = this.render_tags(template, context, partials, in_recursion);
-      }
+  /**
+   * Skips all text until the given regular expression can be matched. Returns
+   * the skipped string, which is the entire tail if no match can be made.
+   */
+  Scanner.prototype.scanUntil = function (re) {
+    var match, pos = this.tail.search(re);
 
-      if (in_recursion) {
-        return html;
+    switch (pos) {
+    case -1:
+      match = this.tail;
+      this.pos += this.tail.length;
+      this.tail = "";
+      break;
+    case 0:
+      match = "";
+      break;
+    default:
+      match = this.tail.substring(0, pos);
+      this.tail = this.tail.substring(pos);
+      this.pos += pos;
+    }
+
+    return match;
+  };
+
+  function Context(view, parent) {
+    this.view = view;
+    this.parent = parent;
+    this.clearCache();
+  }
+
+  Context.make = function (view) {
+    return (view instanceof Context) ? view : new Context(view);
+  };
+
+  Context.prototype.clearCache = function () {
+    this._cache = {};
+  };
+
+  Context.prototype.push = function (view) {
+    return new Context(view, this);
+  };
+
+  Context.prototype.lookup = function (name) {
+    var value = this._cache[name];
+
+    if (!value) {
+      if (name === ".") {
+        value = this.view;
       } else {
-        this.sendLines(html);
-      }
-    },
+        var context = this;
 
-    /*
-      Sends parsed lines
-    */
-    send: function (line) {
-      if (line !== "") {
-        this.buffer.push(line);
-      }
-    },
+        while (context) {
+          if (name.indexOf(".") > 0) {
+            var names = name.split("."), i = 0;
 
-    sendLines: function (text) {
-      if (text) {
-        var lines = text.split("\n");
-        for (var i = 0; i < lines.length; i++) {
-          this.send(lines[i]);
+            value = context.view;
+
+            while (value && i < names.length) {
+              value = value[names[i++]];
+            }
+          } else {
+            value = context.view[name];
+          }
+
+          if (value != null) {
+            break;
+          }
+
+          context = context.parent;
         }
       }
-    },
 
-    /*
-      Looks for %PRAGMAS
-    */
-    render_pragmas: function (template) {
-      // no pragmas
-      if (!this.includes("%", template)) {
-        return template;
-      }
+      this._cache[name] = value;
+    }
 
-      var that = this;
-      var regex = this.getCachedRegex("render_pragmas", function (otag, ctag) {
-        return new RegExp(otag + "%([\\w-]+) ?([\\w]+=[\\w]+)?" + ctag, "g");
-      });
+    if (typeof value === "function") {
+      value = value.call(this.view);
+    }
 
-      return template.replace(regex, function (match, pragma, options) {
-        if (!that.pragmas_implemented[pragma]) {
-          throw({message:
-            "This implementation of mustache doesn't understand the '" +
-            pragma + "' pragma"});
+    return value;
+  };
+
+  function Renderer() {
+    this.clearCache();
+  }
+
+  Renderer.prototype.clearCache = function () {
+    this._cache = {};
+    this._partialCache = {};
+  };
+
+  Renderer.prototype.compile = function (tokens, tags) {
+    if (typeof tokens === "string") {
+      tokens = parse(tokens, tags);
+    }
+
+    var fn = compileTokens(tokens),
+        self = this;
+
+    return function (view) {
+      return fn(Context.make(view), self);
+    };
+  };
+
+  Renderer.prototype.compilePartial = function (name, tokens, tags) {
+    this._partialCache[name] = this.compile(tokens, tags);
+    return this._partialCache[name];
+  };
+
+  Renderer.prototype.render = function (template, view) {
+    var fn = this._cache[template];
+
+    if (!fn) {
+      fn = this.compile(template);
+      this._cache[template] = fn;
+    }
+
+    return fn(view);
+  };
+
+  Renderer.prototype._section = function (name, context, callback) {
+    var value = context.lookup(name);
+
+    switch (typeof value) {
+    case "object":
+      if (isArray(value)) {
+        var buffer = "";
+
+        for (var i = 0, len = value.length; i < len; ++i) {
+          buffer += callback(context.push(value[i]), this);
         }
-        that.pragmas[pragma] = {};
-        if (options) {
-          var opts = options.split("=");
-          that.pragmas[pragma][opts[0]] = opts[1];
-        }
-        return "";
-        // ignore unknown pragmas silently
-      });
-    },
 
-    /*
-      Tries to find a partial in the curent scope and render it
-    */
-    render_partial: function (name, context, partials) {
-      name = trim(name);
-      if (!partials || partials[name] === undefined) {
-        throw({message: "unknown_partial '" + name + "'"});
+        return buffer;
       }
-      if (!context || typeof context[name] != "object") {
-        return this.render(partials[name], context, partials, true);
-      }
-      return this.render(partials[name], context[name], partials, true);
-    },
 
-    /*
-      Renders inverted (^) and normal (#) sections
-    */
-    render_section: function (template, context, partials) {
-      if (!this.includes("#", template) && !this.includes("^", template)) {
-        // did not render anything, there were no sections
-        return false;
+      return value ? callback(context.push(value), this) : "";
+    case "function":
+      // TODO: The text should be passed to the callback plain, not rendered.
+      var sectionText = callback(context, this),
+          self = this;
+
+      var scopedRender = function (template) {
+        return self.render(template, context);
+      };
+
+      return value.call(context.view, sectionText, scopedRender) || "";
+    default:
+      if (value) {
+        return callback(context, this);
       }
+    }
 
-      var that = this;
+    return "";
+  };
 
-      var regex = this.getCachedRegex("render_section", function (otag, ctag) {
-        // This regex matches _the first_ section ({{#foo}}{{/foo}}), and captures the remainder
-        return new RegExp(
-          "^([\\s\\S]*?)" +         // all the crap at the beginning that is not {{*}} ($1)
+  Renderer.prototype._inverted = function (name, context, callback) {
+    var value = context.lookup(name);
 
-          otag +                    // {{
-          "(\\^|\\#)\\s*(.+)\\s*" + //  #foo (# == $2, foo == $3)
-          ctag +                    // }}
+    // From the spec: inverted sections may render text once based on the
+    // inverse value of the key. That is, they will be rendered if the key
+    // doesn't exist, is false, or is an empty list.
+    if (value == null || value === false || (isArray(value) && value.length === 0)) {
+      return callback(context, this);
+    }
 
-          "\n*([\\s\\S]*?)" +       // between the tag ($2). leading newlines are dropped
+    return "";
+  };
 
-          otag +                    // {{
-          "\\/\\s*\\3\\s*" +        //  /foo (backreference to the opening tag).
-          ctag +                    // }}
+  Renderer.prototype._partial = function (name, context) {
+    var fn = this._partialCache[name];
 
-          "\\s*([\\s\\S]*)$",       // everything else in the string ($4). leading whitespace is dropped.
+    if (fn) {
+      return fn(context);
+    }
 
-        "g");
-      });
+    return "";
+  };
 
+  Renderer.prototype._name = function (name, context, escape) {
+    var value = context.lookup(name);
 
-      // for each {{#foo}}{{/foo}} section do...
-      return template.replace(regex, function (match, before, type, name, content, after) {
-        // before contains only tags, no sections
-        var renderedBefore = before ? that.render_tags(before, context, partials, true) : "",
+    if (typeof value === "function") {
+      value = value.call(context.view);
+    }
 
-        // after may contain both sections and tags, so use full rendering function
-            renderedAfter = after ? that.render(after, context, partials, true) : "",
+    var string = (value == null) ? "" : String(value);
 
-        // will be computed below
-            renderedContent,
+    if (escape) {
+      return escapeHtml(string);
+    }
 
-            value = that.find(name, context);
+    return string;
+  };
 
-        if (type === "^") { // inverted section
-          if (!value || Array.isArray(value) && value.length === 0) {
-            // false or empty list, render it
-            renderedContent = that.render(content, context, partials, true);
-          } else {
-            renderedContent = "";
-          }
-        } else if (type === "#") { // normal section
-          if (Array.isArray(value)) { // Enumerable, Let's loop!
-            renderedContent = that.map(value, function (row) {
-              return that.render(content, that.create_context(row), partials, true);
-            }).join("");
-          } else if (that.is_object(value)) { // Object, Use it as subcontext!
-            renderedContent = that.render(content, that.create_context(value),
-              partials, true);
-          } else if (typeof value == "function") {
-            // higher order section
-            renderedContent = value.call(context, content, function (text) {
-              return that.render(text, context, partials, true);
-            });
-          } else if (value) { // boolean section
-            renderedContent = that.render(content, context, partials, true);
-          } else {
-            renderedContent = "";
-          }
-        }
+  /**
+   * Low-level function that compiles the given `tokens` into a
+   * function that accepts two arguments: a Context and a
+   * Renderer. Returns the body of the function as a string if
+   * `returnBody` is true.
+   */
+  function compileTokens(tokens, returnBody) {
+    var body = ['""'];
+    var token, method, escape;
 
-        return renderedBefore + renderedContent + renderedAfter;
-      });
-    },
+    for (var i = 0, len = tokens.length; i < len; ++i) {
+      token = tokens[i];
 
-    /*
-      Replace {{foo}} and friends with values from our view
-    */
-    render_tags: function (template, context, partials, in_recursion) {
-      // tit for tat
-      var that = this;
+      switch (token.type) {
+      case "#":
+      case "^":
+        method = (token.type === "#") ? "_section" : "_inverted";
+        body.push("r." + method + "(" + quote(token.value) + ", c, function (c, r) {\n" +
+          "  " + compileTokens(token.tokens, true) + "\n" +
+          "})");
+        break;
+      case "{":
+      case "&":
+      case "name":
+        escape = token.type === "name" ? "true" : "false";
+        body.push("r._name(" + quote(token.value) + ", c, " + escape + ")");
+        break;
+      case ">":
+        body.push("r._partial(" + quote(token.value) + ", c)");
+        break;
+      case "text":
+        body.push(quote(token.value));
+        break;
+      }
+    }
 
-      var new_regex = function () {
-        return that.getCachedRegex("render_tags", function (otag, ctag) {
-          return new RegExp(otag + "(=|!|>|&|\\{|%)?([^#\\^]+?)\\1?" + ctag + "+", "g");
-        });
-      };
+    // Convert to a string body.
+    body = "return " + body.join(" + ") + ";";
 
-      var regex = new_regex();
-      var tag_replace_callback = function (match, operator, name) {
-        switch(operator) {
-        case "!": // ignore comments
-          return "";
-        case "=": // set new delimiters, rebuild the replace regexp
-          that.set_delimiters(name);
-          regex = new_regex();
-          return "";
-        case ">": // render partial
-          return that.render_partial(name, context, partials);
-        case "{": // the triple mustache is unescaped
-        case "&": // & operator is an alternative unescape method
-          return that.find(name, context);
-        default: // escape the value
-          return escapeHTML(that.find(name, context));
+    // Good for debugging.
+    // console.log(body);
+
+    if (returnBody) {
+      return body;
+    }
+
+    // For great evil!
+    return new Function("c, r", body);
+  }
+
+  function escapeTags(tags) {
+    if (tags.length === 2) {
+      return [
+        new RegExp(escapeRe(tags[0]) + "\\s*"),
+        new RegExp("\\s*" + escapeRe(tags[1]))
+      ];
+    }
+
+    throw new Error("Invalid tags: " + tags.join(" "));
+  }
+
+  /**
+   * Forms the given linear array of `tokens` into a nested tree structure
+   * where tokens that represent a section have a "tokens" array property
+   * that contains all tokens that are in that section.
+   */
+  function nestTokens(tokens) {
+    var tree = [];
+    var collector = tree;
+    var sections = [];
+    var token, section;
+
+    for (var i = 0; i < tokens.length; ++i) {
+      token = tokens[i];
+
+      switch (token.type) {
+      case "#":
+      case "^":
+        token.tokens = [];
+        sections.push(token);
+        collector.push(token);
+        collector = token.tokens;
+        break;
+      case "/":
+        if (sections.length === 0) {
+          throw new Error("Unopened section: " + token.value);
         }
-      };
-      var lines = template.split("\n");
-      for(var i = 0; i < lines.length; i++) {
-        lines[i] = lines[i].replace(regex, tag_replace_callback, this);
-        if (!in_recursion) {
-          this.send(lines[i]);
+
+        section = sections.pop();
+
+        if (section.value !== token.value) {
+          throw new Error("Unclosed section: " + section.value);
         }
-      }
 
-      if (in_recursion) {
-        return lines.join("\n");
+        if (sections.length > 0) {
+          collector = sections[sections.length - 1].tokens;
+        } else {
+          collector = tree;
+        }
+        break;
+      default:
+        collector.push(token);
       }
-    },
+    }
 
-    set_delimiters: function (delimiters) {
-      var dels = delimiters.split(" ");
-      this.otag = this.escape_regex(dels[0]);
-      this.ctag = this.escape_regex(dels[1]);
-    },
+    // Make sure there were no open sections when we're done.
+    section = sections.pop();
 
-    escape_regex: function (text) {
-      // thank you Simon Willison
-      if (!arguments.callee.sRE) {
-        var specials = [
-          '/', '.', '*', '+', '?', '|',
-          '(', ')', '[', ']', '{', '}', '\\'
-        ];
-        arguments.callee.sRE = new RegExp(
-          '(\\' + specials.join('|\\') + ')', 'g'
-        );
-      }
-      return text.replace(arguments.callee.sRE, '\\$1');
-    },
+    if (section) {
+      throw new Error("Unclosed section: " + section.value);
+    }
 
-    /*
-      find `name` in current `context`. That is find me a value
-      from the view object
-    */
-    find: function (name, context) {
-      name = trim(name);
+    return tree;
+  }
 
-      // Checks whether a value is thruthy or false or 0
-      function is_kinda_truthy(bool) {
-        return bool === false || bool === 0 || bool;
+  /**
+   * Combines the values of consecutive text tokens in the given `tokens` array
+   * to a single token.
+   */
+  function squashTokens(tokens) {
+    var lastToken;
+
+    for (var i = 0; i < tokens.length; ++i) {
+      var token = tokens[i];
+
+      if (lastToken && lastToken.type === "text" && token.type === "text") {
+        lastToken.value += token.value;
+        tokens.splice(i--, 1); // Remove this token from the array.
+      } else {
+        lastToken = token;
       }
+    }
+  }
 
-      var value;
+  /**
+   * Breaks up the given `template` string into a tree of token objects. If
+   * `tags` is given here it must be an array with two string values: the
+   * opening and closing tags used in the template (e.g. ["<%", "%>"]). Of
+   * course, the default is to use mustaches (i.e. Mustache.tags).
+   */
+  function parse(template, tags) {
+    tags = tags || exports.tags;
 
-      // check for dot notation eg. foo.bar
-      if (name.match(/([a-z_]+)\./ig)) {
-        var childValue = this.walk_context(name, context);
-        if (is_kinda_truthy(childValue)) {
-          value = childValue;
+    var tagRes = escapeTags(tags);
+    var scanner = new Scanner(template);
+
+    var tokens = [],      // Buffer to hold the tokens
+        spaces = [],      // Indices of whitespace tokens on the current line
+        hasTag = false,   // Is there a {{tag}} on the current line?
+        nonSpace = false; // Is there a non-space char on the current line?
+
+    // Strips all whitespace tokens array for the current line
+    // if there was a {{#tag}} on it and otherwise only space.
+    var stripSpace = function () {
+      if (hasTag && !nonSpace) {
+        while (spaces.length) {
+          tokens.splice(spaces.pop(), 1);
         }
       } else {
-        if (is_kinda_truthy(context[name])) {
-          value = context[name];
-        } else if (is_kinda_truthy(this.context[name])) {
-          value = this.context[name];
-        }
+        spaces = [];
       }
 
-      if (typeof value == "function") {
-        return value.apply(context);
-      }
-      if (value !== undefined) {
-        return value;
-      }
-      // silently ignore unkown variables
-      return "";
-    },
+      hasTag = false;
+      nonSpace = false;
+    };
 
-    walk_context: function (name, context) {
-      var path = name.split('.');
-      // if the var doesn't exist in current context, check the top level context
-      var value_context = (context[path[0]] != undefined) ? context : this.context;
-      var value = value_context[path.shift()];
-      while (value != undefined && path.length > 0) {
-        value_context = value;
-        value = value[path.shift()];
-      }
-      // if the value is a function, call it, binding the correct context
-      if (typeof value == "function") {
-        return value.apply(value_context);
-      }
-      return value;
-    },
+    var type, value, chr;
 
-    // Utility methods
+    while (!scanner.eos()) {
+      value = scanner.scanUntil(tagRes[0]);
 
-    /* includes tag */
-    includes: function (needle, haystack) {
-      return haystack.indexOf(this.otag + needle) != -1;
-    },
+      if (value) {
+        for (var i = 0, len = value.length; i < len; ++i) {
+          chr = value.charAt(i);
 
-    // by @langalex, support for arrays of strings
-    create_context: function (_context) {
-      if (this.is_object(_context)) {
-        return _context;
-      } else {
-        var iterator = ".";
-        if (this.pragmas["IMPLICIT-ITERATOR"]) {
-          iterator = this.pragmas["IMPLICIT-ITERATOR"].iterator;
+          if (isWhitespace(chr)) {
+            spaces.push(tokens.length);
+          } else {
+            nonSpace = true;
+          }
+
+          tokens.push({type: "text", value: chr});
+
+          if (chr === "\n") {
+            stripSpace(); // Check for whitespace on the current line.
+          }
         }
-        var ctx = {};
-        ctx[iterator] = _context;
-        return ctx;
       }
-    },
 
-    is_object: function (a) {
-      return a && typeof a == "object";
-    },
+      // Match the opening tag.
+      if (!scanner.scan(tagRes[0])) {
+        break;
+      }
 
-    /*
-      Why, why, why? Because IE. Cry, cry cry.
-    */
-    map: function (array, fn) {
-      if (typeof array.map == "function") {
-        return array.map(fn);
+      hasTag = true;
+      type = scanner.scan(tagRe) || "name";
+
+      // Skip any whitespace between tag and value.
+      scanner.scan(whiteRe);
+
+      // Extract the tag value.
+      if (type === "=") {
+        value = scanner.scanUntil(eqRe);
+        scanner.scan(eqRe);
+        scanner.scanUntil(tagRes[1]);
+      } else if (type === "{") {
+        var closeRe = new RegExp("\\s*" + escapeRe("}" + tags[1]));
+        value = scanner.scanUntil(closeRe);
+        scanner.scan(curlyRe);
+        scanner.scanUntil(tagRes[1]);
       } else {
-        var r = [];
-        var l = array.length;
-        for(var i = 0; i < l; i++) {
-          r.push(fn(array[i]));
-        }
-        return r;
+        value = scanner.scanUntil(tagRes[1]);
       }
-    },
 
-    getCachedRegex: function (name, generator) {
-      var byOtag = regexCache[this.otag];
-      if (!byOtag) {
-        byOtag = regexCache[this.otag] = {};
+      // Match the closing tag.
+      if (!scanner.scan(tagRes[1])) {
+        throw new Error("Unclosed tag at " + scanner.pos);
       }
 
-      var byCtag = byOtag[this.ctag];
-      if (!byCtag) {
-        byCtag = byOtag[this.ctag] = {};
+      tokens.push({type: type, value: value});
+
+      if (type === "name" || type === "{" || type === "&") {
+        nonSpace = true;
       }
 
-      var regex = byCtag[name];
-      if (!regex) {
-        regex = byCtag[name] = generator(this.otag, this.ctag);
+      // Set the tags for the next time around.
+      if (type === "=") {
+        tags = value.split(spaceRe);
+        tagRes = escapeTags(tags);
       }
-
-      return regex;
     }
-  };
 
-  return({
-    name: "mustache.js",
-    version: "0.4.0",
+    squashTokens(tokens);
 
-    /*
-      Turns a template and view into HTML
-    */
-    to_html: function (template, view, partials, send_fun) {
-      var renderer = new Renderer();
-      if (send_fun) {
-        renderer.send = send_fun;
+    return nestTokens(tokens);
+  }
+
+  // The high-level clearCache, compile, compilePartial, and render functions
+  // use this default renderer.
+  var _renderer = new Renderer();
+
+  /**
+   * Clears all cached templates and partials.
+   */
+  function clearCache() {
+    _renderer.clearCache();
+  }
+
+  /**
+   * High-level API for compiling the given `tokens` down to a reusable
+   * function. If `tokens` is a string it will be parsed using the given `tags`
+   * before it is compiled.
+   */
+  function compile(tokens, tags) {
+    return _renderer.compile(tokens, tags);
+  }
+
+  /**
+   * High-level API for compiling the `tokens` for the partial with the given
+   * `name` down to a reusable function. If `tokens` is a string it will be
+   * parsed using the given `tags` before it is compiled.
+   */
+  function compilePartial(name, tokens, tags) {
+    return _renderer.compilePartial(name, tokens, tags);
+  }
+
+  /**
+   * High-level API for rendering the `template` using the given `view`. The
+   * optional `partials` object may be given here for convenience, but note that
+   * it will cause all partials to be re-compiled, thus hurting performance. Of
+   * course, this only matters if you're going to render the same template more
+   * than once. If so, it is best to call `compilePartial` before calling this
+   * function and to leave the `partials` argument blank.
+   */
+  function render(template, view, partials) {
+    if (partials) {
+      for (var name in partials) {
+        compilePartial(name, partials[name]);
       }
-      renderer.render(template, view || {}, partials);
-      if (!send_fun) {
-        return renderer.buffer.join("\n");
-      }
     }
-  });
-}();
-if (typeof module !== 'undefined' && module.exports) {
-    exports.name = Mustache.name;
-    exports.version = Mustache.version;
 
-    exports.to_html = function() {
-      return Mustache.to_html.apply(this, arguments);
-    };
-}
+    return _renderer.render(template, view);
+  }
+
+  return exports;
+}())));

package.json

 {
-    "name": "mustache",
-    "author": "Jan Lehnardt <[e-mail]>",
-    "description": "Logic-less {{mustache}} templates with JavaScript",
-    "keywords": ["template", "templates", "mustache"],
-    "version": "0.4.0",
-    "main": "./mustache"
+  "name": "mustache",
+  "version": "0.5.1-dev",
+  "description": "Logic-less {{mustache}} templates with JavaScript",
+  "author": "mustache.js Authors <http://github.com/janl/mustache.js>",
+  "keywords": ["mustache", "template", "templates", "ejs"],
+  "main": "./mustache.js",
+  "devDependencies": {
+    "vows": "0.6.x",
+    "uglify-js": "1.3.0"
+  },
+  "scripts": {
+    "test": "vows --spec"
+  }
 }

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Improved metrics

Total package byte prevSize

59825

increased by107.53%

Number of package files

166

increased by4050%

Number of low license alerts

0

decreased by-100%

Lines of code

1056

increased by172.87%

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Number of lines in readme file

424

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Worsened metrics

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2

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Number of low supply chain risk alerts

4

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Number of medium supply chain risk alerts

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