tv_xiaoyouxi/games/fkct/js/vendor/mustache.js

/*!
* mustache.js - Logic-less {{mustache}} templates with JavaScript
* http://github.com/janl/mustache.js
*/

/*global define: false*/

(function (root, factory) {
    if (typeof exports === "object" && exports) {
        factory(exports); // CommonJS
    } else {
        var mustache = {};
        factory(mustache);
        if (typeof define === "function" && define.amd) {
            define(mustache); // AMD
        } else {
            root.Mustache = mustache; // <script>
        }
    }
} (this, function (mustache) {

    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
    var RegExp_test = RegExp.prototype.test;
    function testRegExp(re, string) {
        return RegExp_test.call(re, string);
    }

    function isWhitespace(string) {
        return !testRegExp(nonSpaceRe, string);
    }

    var Object_toString = Object.prototype.toString;
    var isArray = Array.isArray || function (obj) {
        return Object_toString.call(obj) === '[object Array]';
    };

    function escapeRegExp(string) {
        return string.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&");
    }

    var entityMap = {
        "&": "&amp;",
        "<": "&lt;",
        ">": "&gt;",
        '"': '&quot;',
        "'": '&#39;',
        "/": '&#x2F;'
    };

    function escapeHtml(string) {
        return String(string).replace(/[&<>"'\/]/g, function (s) {
            return entityMap[s];
        });
    }

    function Scanner(string) {
        this.string = string;
        this.tail = string;
        this.pos = 0;
    }

    /**
    * Returns `true` if the tail is empty (end of string).
    */
    Scanner.prototype.eos = function () {
        return this.tail === "";
    };

    /**
    * 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);

        if (match && match.index === 0) {
            this.tail = this.tail.substring(match[0].length);
            this.pos += match[0].length;
            return match[0];
        }

        return "";
    };

    /**
    * 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);

        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._cache = {};
    }

    Context.make = function (view) {
        return (view instanceof Context) ? view : new Context(view);
    };

    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 {
                var context = this;

                while (context) {
                    if (name.indexOf('.') > 0) {
                        value = context.view;
                        var names = name.split('.'), i = 0;
                        while (value && i < names.length) {
                            value = value[names[i++]];
                        }
                    } else {
                        value = context.view[name];
                    }

                    if (value != null) break;

                    context = context.parent;
                }
            }

            this._cache[name] = value;
        }

        if (typeof value === 'function') value = value.call(this.view);

        return value;
    };

    function Writer() {
        this.clearCache();
    }

    Writer.prototype.clearCache = function () {
        this._cache = {};
        this._partialCache = {};
    };

    Writer.prototype.compile = function (template, tags) {
        var fn = this._cache[template];

        if (!fn) {
            var tokens = mustache.parse(template, tags);
            fn = this._cache[template] = this.compileTokens(tokens, template);
        }

        return fn;
    };

    Writer.prototype.compilePartial = function (name, template, tags) {
        var fn = this.compile(template, tags);
        this._partialCache[name] = fn;
        return fn;
    };

    Writer.prototype.getPartial = function (name) {
        if (!(name in this._partialCache) && this._loadPartial) {
            this.compilePartial(name, this._loadPartial(name));
        }

        return this._partialCache[name];
    };

    Writer.prototype.compileTokens = function (tokens, template) {
        var self = this;
        return function (view, partials) {
            if (partials) {
                if (typeof partials === 'function') {
                    self._loadPartial = partials;
                } else {
                    for (var name in partials) {
                        self.compilePartial(name, partials[name]);
                    }
                }
            }

            return renderTokens(tokens, self, Context.make(view), template);
        };
    };

    Writer.prototype.render = function (template, view, partials) {
        return this.compile(template)(view, partials);
    };

    /**
    * Low-level function that renders the given `tokens` using the given `writer`
    * and `context`. The `template` string is only needed for templates that use
    * higher-order sections to extract the portion of the original template that
    * was contained in that section.
    */
    function renderTokens(tokens, writer, context, template) {
        var buffer = '';

        var token, tokenValue, value;
        for (var i = 0, len = tokens.length; i < len; ++i) {
            token = tokens[i];
            tokenValue = token[1];

            switch (token[0]) {
                case '#':
                    value = context.lookup(tokenValue);

                    if (typeof value === 'object') {
                        if (isArray(value)) {
                            for (var j = 0, jlen = value.length; j < jlen; ++j) {
                                buffer += renderTokens(token[4], writer, context.push(value[j]), template);
                            }
                        } else if (value) {
                            buffer += renderTokens(token[4], writer, context.push(value), template);
                        }
                    } else if (typeof value === 'function') {
                        var text = template == null ? null : template.slice(token[3], token[5]);
                        value = value.call(context.view, text, function (template) {
                            return writer.render(template, context);
                        });
                        if (value != null) buffer += value;
                    } else if (value) {
                        buffer += renderTokens(token[4], writer, context, template);
                    }

                    break;
                case '^':
                    value = context.lookup(tokenValue);

                    // Use JavaScript's definition of falsy. Include empty arrays.
                    // See https://github.com/janl/mustache.js/issues/186
                    if (!value || (isArray(value) && value.length === 0)) {
                        buffer += renderTokens(token[4], writer, context, template);
                    }

                    break;
                case '>':
                    value = writer.getPartial(tokenValue);
                    if (typeof value === 'function') buffer += value(context);
                    break;
                case '&':
                    value = context.lookup(tokenValue);
                    if (value != null) buffer += value;
                    break;
                case 'name':
                    value = context.lookup(tokenValue);
                    if (value != null) buffer += mustache.escape(value);
                    break;
                case 'text':
                    buffer += tokenValue;
                    break;
            }
        }

        return buffer;
    }

    /**
    * Forms the given array of `tokens` into a nested tree structure where
    * tokens that represent a section have two additional items: 1) an array of
    * all tokens that appear in that section and 2) the index in the original
    * template that represents the end of that section.
    */
    function nestTokens(tokens) {
        var tree = [];
        var collector = tree;
        var sections = [];

        var token;
        for (var i = 0, len = tokens.length; i < len; ++i) {
            token = tokens[i];
            switch (token[0]) {
                case '#':
                case '^':
                    sections.push(token);
                    collector.push(token);
                    collector = token[4] = [];
                    break;
                case '/':
                    var section = sections.pop();
                    section[5] = token[2];
                    collector = sections.length > 0 ? sections[sections.length - 1][4] : tree;
                    break;
                default:
                    collector.push(token);
            }
        }

        return tree;
    }

    /**
    * Combines the values of consecutive text tokens in the given `tokens` array
    * to a single token.
    */
    function squashTokens(tokens) {
        var squashedTokens = [];

        var token, lastToken;
        for (var i = 0, len = tokens.length; i < len; ++i) {
            token = tokens[i];
            if (token) {
                if (token[0] === 'text' && lastToken && lastToken[0] === 'text') {
                    lastToken[1] += token[1];
                    lastToken[3] = token[3];
                } else {
                    lastToken = token;
                    squashedTokens.push(token);
                }
            }
        }

        return squashedTokens;
    }

    function escapeTags(tags) {
        return [
      new RegExp(escapeRegExp(tags[0]) + "\\s*"),
      new RegExp("\\s*" + escapeRegExp(tags[1]))
    ];
    }

    /**
    * 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 parseTemplate(template, tags) {
        template = template || '';
        tags = tags || mustache.tags;

        if (typeof tags === 'string') tags = tags.split(spaceRe);
        if (tags.length !== 2) throw new Error('Invalid tags: ' + tags.join(', '));

        var tagRes = escapeTags(tags);
        var scanner = new Scanner(template);

        var sections = [];     // Stack to hold section tokens
        var tokens = [];       // Buffer to hold the tokens
        var spaces = [];       // Indices of whitespace tokens on the current line
        var hasTag = false;    // Is there a {{tag}} on the current line?
        var 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.
        function stripSpace() {
            if (hasTag && !nonSpace) {
                while (spaces.length) {
                    delete tokens[spaces.pop()];
                }
            } else {
                spaces = [];
            }

            hasTag = false;
            nonSpace = false;
        }

        var start, type, value, chr, token;
        while (!scanner.eos()) {
            start = scanner.pos;

            // Match any text between tags.
            value = scanner.scanUntil(tagRes[0]);
            if (value) {
                for (var i = 0, len = value.length; i < len; ++i) {
                    chr = value.charAt(i);

                    if (isWhitespace(chr)) {
                        spaces.push(tokens.length);
                    } else {
                        nonSpace = true;
                    }

                    tokens.push(['text', chr, start, start + 1]);
                    start += 1;

                    // Check for whitespace on the current line.
                    if (chr == '\n') stripSpace();
                }
            }

            // Match the opening tag.
            if (!scanner.scan(tagRes[0])) break;
            hasTag = true;

            // Get the tag type.
            type = scanner.scan(tagRe) || 'name';
            scanner.scan(whiteRe);

            // Get the tag value.
            if (type === '=') {
                value = scanner.scanUntil(eqRe);
                scanner.scan(eqRe);
                scanner.scanUntil(tagRes[1]);
            } else if (type === '{') {
                value = scanner.scanUntil(new RegExp('\\s*' + escapeRegExp('}' + tags[1])));
                scanner.scan(curlyRe);
                scanner.scanUntil(tagRes[1]);
                type = '&';
            } else {
                value = scanner.scanUntil(tagRes[1]);
            }

            // Match the closing tag.
            if (!scanner.scan(tagRes[1])) throw new Error('Unclosed tag at ' + scanner.pos);

            token = [type, value, start, scanner.pos];
            tokens.push(token);

            if (type === '#' || type === '^') {
                sections.push(token);
            } else if (type === '/') {
                // Check section nesting.
                if (sections.length === 0) throw new Error('Unopened section "' + value + '" at ' + start);
                var openSection = sections.pop();
                if (openSection[1] !== value) throw new Error('Unclosed section "' + openSection[1] + '" at ' + start);
            } else if (type === 'name' || type === '{' || type === '&') {
                nonSpace = true;
            } else if (type === '=') {
                // Set the tags for the next time around.
                tags = value.split(spaceRe);
                if (tags.length !== 2) throw new Error('Invalid tags at ' + start + ': ' + tags.join(', '));
                tagRes = escapeTags(tags);
            }
        }

        // Make sure there are no open sections when we're done.
        var openSection = sections.pop();
        if (openSection) throw new Error('Unclosed section "' + openSection[1] + '" at ' + scanner.pos);

        tokens = squashTokens(tokens);

        return nestTokens(tokens);
    }

    mustache.name = "mustache.js";
    mustache.version = "0.7.2";
    mustache.tags = ["{{", "}}"];

    mustache.Scanner = Scanner;
    mustache.Context = Context;
    mustache.Writer = Writer;

    mustache.parse = parseTemplate;

    // Export the escaping function so that the user may override it.
    // See https://github.com/janl/mustache.js/issues/244
    mustache.escape = escapeHtml;

    // All Mustache.* functions use this writer.
    var defaultWriter = new Writer();

    /**
    * Clears all cached templates and partials in the default writer.
    */
    mustache.clearCache = function () {
        return defaultWriter.clearCache();
    };

    /**
    * Compiles the given `template` to a reusable function using the default
    * writer.
    */
    mustache.compile = function (template, tags) {
        return defaultWriter.compile(template, tags);
    };

    /**
    * Compiles the partial with the given `name` and `template` to a reusable
    * function using the default writer.
    */
    mustache.compilePartial = function (name, template, tags) {
        return defaultWriter.compilePartial(name, template, tags);
    };

    /**
    * Compiles the given array of tokens (the output of a parse) to a reusable
    * function using the default writer.
    */
    mustache.compileTokens = function (tokens, template) {
        return defaultWriter.compileTokens(tokens, template);
    };

    /**
    * Renders the `template` with the given `view` and `partials` using the
    * default writer.
    */
    mustache.render = function (template, view, partials) {
        return defaultWriter.render(template, view, partials);
    };

    // This is here for backwards compatibility with 0.4.x.
    mustache.to_html = function (template, view, partials, send) {
        var result = mustache.render(template, view, partials);

        if (typeof send === "function") {
            send(result);
        } else {
            return result;
        }
    };

}));