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  <pre class="prettyprint lang-js"><span id='Ext-util-Format'>/**
</span> * @class Ext.util.Format
 *  
 * This class is a centralized place for formatting functions. It includes
 * functions to format various different types of data, such as text, dates and numeric values.
 *  
 * ## Localization
 *
 * This class contains several options for localization. These can be set once the library has loaded,
 * all calls to the functions from that point will use the locale settings that were specified.
 *
 * Options include:
 *
 * - thousandSeparator
 * - decimalSeparator
 * - currenyPrecision
 * - currencySign
 * - currencyAtEnd
 *
 * This class also uses the default date format defined here: {@link Ext.Date#defaultFormat}.
 *
 * ## Using with renderers
 *
 * There are two helper functions that return a new function that can be used in conjunction with
 * grid renderers:
 *  
 *     columns: [{
 *         dataIndex: 'date',
 *         renderer: Ext.util.Format.dateRenderer('Y-m-d')
 *     }, {
 *         dataIndex: 'time',
 *         renderer: Ext.util.Format.numberRenderer('0.000')
 *     }]
 *  
 * Functions that only take a single argument can also be passed directly:
 *
 *     columns: [{
 *         dataIndex: 'cost',
 *         renderer: Ext.util.Format.usMoney
 *     }, {
 *         dataIndex: 'productCode',
 *         renderer: Ext.util.Format.uppercase
 *     }]
 *  
 * ## Using with XTemplates
 *
 * XTemplates can also directly use Ext.util.Format functions:
 *  
 *     new Ext.XTemplate([
 *         'Date: {startDate:date(&quot;Y-m-d&quot;)}',
 *         'Cost: {cost:usMoney}'
 *     ]);
 *
 * @singleton
 */
(function() {
    Ext.ns('Ext.util');

    Ext.util.Format = {};
    var UtilFormat     = Ext.util.Format,
        stripTagsRE    = /&lt;\/?[^&gt;]+&gt;/gi,
        stripScriptsRe = /(?:&lt;script.*?&gt;)((\n|\r|.)*?)(?:&lt;\/script&gt;)/ig,
        nl2brRe        = /\r?\n/g,

        // A RegExp to remove from a number format string, all characters except digits and '.'
        formatCleanRe  = /[^\d\.]/g,

        // A RegExp to remove from a number format string, all characters except digits and the local decimal separator.
        // Created on first use. The local decimal separator character must be initialized for this to be created.
        I18NFormatCleanRe;

    Ext.apply(UtilFormat, {
        //&lt;locale&gt;
<span id='Ext-util-Format-property-thousandSeparator'>        /**
</span>         * @property {String} thousandSeparator
         * The character that the {@link #number} function uses as a thousand separator.
         *
         * This may be overridden in a locale file.
         */
        thousandSeparator: ',',
        //&lt;/locale&gt;

        //&lt;locale&gt;
<span id='Ext-util-Format-property-decimalSeparator'>        /**
</span>         * @property {String} decimalSeparator
         * The character that the {@link #number} function uses as a decimal point.
         *
         * This may be overridden in a locale file.
         */
        decimalSeparator: '.',
        //&lt;/locale&gt;

        //&lt;locale&gt;
<span id='Ext-util-Format-property-currencyPrecision'>        /**
</span>         * @property {Number} currencyPrecision
         * The number of decimal places that the {@link #currency} function displays.
         *
         * This may be overridden in a locale file.
         */
        currencyPrecision: 2,
        //&lt;/locale&gt;

         //&lt;locale&gt;
<span id='Ext-util-Format-property-currencySign'>        /**
</span>         * @property {String} currencySign
         * The currency sign that the {@link #currency} function displays.
         *
         * This may be overridden in a locale file.
         */
        currencySign: '$',
        //&lt;/locale&gt;

        //&lt;locale&gt;
<span id='Ext-util-Format-property-currencyAtEnd'>        /**
</span>         * @property {Boolean} currencyAtEnd
         * This may be set to &lt;code&gt;true&lt;/code&gt; to make the {@link #currency} function
         * append the currency sign to the formatted value.
         *
         * This may be overridden in a locale file.
         */
        currencyAtEnd: false,
        //&lt;/locale&gt;

<span id='Ext-util-Format-method-undef'>        /**
</span>         * Checks a reference and converts it to empty string if it is undefined.
         * @param {Object} value Reference to check
         * @return {Object} Empty string if converted, otherwise the original value
         */
        undef : function(value) {
            return value !== undefined ? value : &quot;&quot;;
        },

<span id='Ext-util-Format-method-defaultValue'>        /**
</span>         * Checks a reference and converts it to the default value if it's empty.
         * @param {Object} value Reference to check
         * @param {String} [defaultValue=&quot;&quot;] The value to insert of it's undefined.
         * @return {String}
         */
        defaultValue : function(value, defaultValue) {
            return value !== undefined &amp;&amp; value !== '' ? value : defaultValue;
        },

<span id='Ext-util-Format-method-substr'>        /**
</span>         * Returns a substring from within an original string.
         * @param {String} value The original text
         * @param {Number} start The start index of the substring
         * @param {Number} length The length of the substring
         * @return {String} The substring
         * @method
         */
        substr : 'ab'.substr(-1) != 'b'
        ? function (value, start, length) {
            var str = String(value);
            return (start &lt; 0)
                ? str.substr(Math.max(str.length + start, 0), length)
                : str.substr(start, length);
        }
        : function(value, start, length) {
            return String(value).substr(start, length);
        },

<span id='Ext-util-Format-method-lowercase'>        /**
</span>         * Converts a string to all lower case letters.
         * @param {String} value The text to convert
         * @return {String} The converted text
         */
        lowercase : function(value) {
            return String(value).toLowerCase();
        },

<span id='Ext-util-Format-method-uppercase'>        /**
</span>         * Converts a string to all upper case letters.
         * @param {String} value The text to convert
         * @return {String} The converted text
         */
        uppercase : function(value) {
            return String(value).toUpperCase();
        },

<span id='Ext-util-Format-method-usMoney'>        /**
</span>         * Format a number as US currency.
         * @param {Number/String} value The numeric value to format
         * @return {String} The formatted currency string
         */
        usMoney : function(v) {
            return UtilFormat.currency(v, '$', 2);
        },

<span id='Ext-util-Format-method-currency'>        /**
</span>         * Format a number as a currency.
         * @param {Number/String} value The numeric value to format
         * @param {String} [sign] The currency sign to use (defaults to {@link #currencySign})
         * @param {Number} [decimals] The number of decimals to use for the currency
         * (defaults to {@link #currencyPrecision})
         * @param {Boolean} [end] True if the currency sign should be at the end of the string
         * (defaults to {@link #currencyAtEnd})
         * @return {String} The formatted currency string
         */
        currency: function(v, currencySign, decimals, end) {
            var negativeSign = '',
                format = &quot;,0&quot;,
                i = 0;
            v = v - 0;
            if (v &lt; 0) {
                v = -v;
                negativeSign = '-';
            }
            decimals = Ext.isDefined(decimals) ? decimals : UtilFormat.currencyPrecision;
            format += format + (decimals &gt; 0 ? '.' : '');
            for (; i &lt; decimals; i++) {
                format += '0';
            }
            v = UtilFormat.number(v, format);
            if ((end || UtilFormat.currencyAtEnd) === true) {
                return Ext.String.format(&quot;{0}{1}{2}&quot;, negativeSign, v, currencySign || UtilFormat.currencySign);
            } else {
                return Ext.String.format(&quot;{0}{1}{2}&quot;, negativeSign, currencySign || UtilFormat.currencySign, v);
            }
        },

<span id='Ext-util-Format-method-date'>        /**
</span>         * Formats the passed date using the specified format pattern.
         * @param {String/Date} value The value to format. If a string is passed, it is converted to a Date
         * by the Javascript's built-in Date#parse method.
         * @param {String} [format] Any valid date format string. Defaults to {@link Ext.Date#defaultFormat}.
         * @return {String} The formatted date string.
         */
        date: function(v, format) {
            if (!v) {
                return &quot;&quot;;
            }
            if (!Ext.isDate(v)) {
                v = new Date(Date.parse(v));
            }
            return Ext.Date.dateFormat(v, format || Ext.Date.defaultFormat);
        },

<span id='Ext-util-Format-method-dateRenderer'>        /**
</span>         * Returns a date rendering function that can be reused to apply a date format multiple times efficiently.
         * @param {String} format Any valid date format string. Defaults to {@link Ext.Date#defaultFormat}.
         * @return {Function} The date formatting function
         */
        dateRenderer : function(format) {
            return function(v) {
                return UtilFormat.date(v, format);
            };
        },

<span id='Ext-util-Format-method-stripTags'>        /**
</span>         * Strips all HTML tags.
         * @param {Object} value The text from which to strip tags
         * @return {String} The stripped text
         */
        stripTags : function(v) {
            return !v ? v : String(v).replace(stripTagsRE, &quot;&quot;);
        },

<span id='Ext-util-Format-method-stripScripts'>        /**
</span>         * Strips all script tags.
         * @param {Object} value The text from which to strip script tags
         * @return {String} The stripped text
         */
        stripScripts : function(v) {
            return !v ? v : String(v).replace(stripScriptsRe, &quot;&quot;);
        },

<span id='Ext-util-Format-method-fileSize'>        /**
</span>         * Simple format for a file size (xxx bytes, xxx KB, xxx MB).
         * @param {Number/String} size The numeric value to format
         * @return {String} The formatted file size
         */
        fileSize : function(size) {
            if (size &lt; 1024) {
                return size + &quot; bytes&quot;;
            } else if (size &lt; 1048576) {
                return (Math.round(((size*10) / 1024))/10) + &quot; KB&quot;;
            } else {
                return (Math.round(((size*10) / 1048576))/10) + &quot; MB&quot;;
            }
        },

<span id='Ext-util-Format-method-math'>        /**
</span>         * It does simple math for use in a template, for example:
         *
         *     var tpl = new Ext.Template('{value} * 10 = {value:math(&quot;* 10&quot;)}');
         *
         * @return {Function} A function that operates on the passed value.
         * @method
         */
        math : (function(){
            var fns = {};

            return function(v, a){
                if (!fns[a]) {
                    fns[a] = Ext.functionFactory('v', 'return v ' + a + ';');
                }
                return fns[a](v);
            };
        }()),

<span id='Ext-util-Format-method-round'>        /**
</span>         * Rounds the passed number to the required decimal precision.
         * @param {Number/String} value The numeric value to round.
         * @param {Number} precision The number of decimal places to which to round the first parameter's value.
         * @return {Number} The rounded value.
         */
        round : function(value, precision) {
            var result = Number(value);
            if (typeof precision == 'number') {
                precision = Math.pow(10, precision);
                result = Math.round(value * precision) / precision;
            }
            return result;
        },

<span id='Ext-util-Format-method-number'>        /**
</span>         * Formats the passed number according to the passed format string.
         *
         * The number of digits after the decimal separator character specifies the number of
         * decimal places in the resulting string. The *local-specific* decimal character is
         * used in the result.
         *
         * The *presence* of a thousand separator character in the format string specifies that
         * the *locale-specific* thousand separator (if any) is inserted separating thousand groups.
         *
         * By default, &quot;,&quot; is expected as the thousand separator, and &quot;.&quot; is expected as the decimal separator.
         *
         * ## New to Ext JS 4
         *
         * Locale-specific characters are always used in the formatted output when inserting
         * thousand and decimal separators.
         *
         * The format string must specify separator characters according to US/UK conventions (&quot;,&quot; as the
         * thousand separator, and &quot;.&quot; as the decimal separator)
         *
         * To allow specification of format strings according to local conventions for separator characters, add
         * the string `/i` to the end of the format string.
         *
         * examples (123456.789):
         * 
         * - `0` - (123456) show only digits, no precision
         * - `0.00` - (123456.78) show only digits, 2 precision
         * - `0.0000` - (123456.7890) show only digits, 4 precision
         * - `0,000` - (123,456) show comma and digits, no precision
         * - `0,000.00` - (123,456.78) show comma and digits, 2 precision
         * - `0,0.00` - (123,456.78) shortcut method, show comma and digits, 2 precision
         *
         * To allow specification of the formatting string using UK/US grouping characters (,) and
         * decimal (.) for international numbers, add /i to the end. For example: 0.000,00/i
         *
         * @param {Number} v The number to format.
         * @param {String} format The way you would like to format this text.
         * @return {String} The formatted number.
         */
        number : function(v, formatString) {
            if (!formatString) {
                return v;
            }
            v = Ext.Number.from(v, NaN);
            if (isNaN(v)) {
                return '';
            }
            var comma = UtilFormat.thousandSeparator,
                dec   = UtilFormat.decimalSeparator,
                i18n  = false,
                neg   = v &lt; 0,
                hasComma,
                psplit,
                fnum,
                cnum,
                parr,
                j,
                m,
                n,
                i;

            v = Math.abs(v);

            // The &quot;/i&quot; suffix allows caller to use a locale-specific formatting string.
            // Clean the format string by removing all but numerals and the decimal separator.
            // Then split the format string into pre and post decimal segments according to *what* the
            // decimal separator is. If they are specifying &quot;/i&quot;, they are using the local convention in the format string.
            if (formatString.substr(formatString.length - 2) == '/i') {
                if (!I18NFormatCleanRe) {
                    I18NFormatCleanRe = new RegExp('[^\\d\\' + UtilFormat.decimalSeparator + ']','g');
                }
                formatString = formatString.substr(0, formatString.length - 2);
                i18n   = true;
                hasComma = formatString.indexOf(comma) != -1;
                psplit = formatString.replace(I18NFormatCleanRe, '').split(dec);
            } else {
                hasComma = formatString.indexOf(',') != -1;
                psplit = formatString.replace(formatCleanRe, '').split('.');
            }

            if (psplit.length &gt; 2) {
                //&lt;debug&gt;
                Ext.Error.raise({
                    sourceClass: &quot;Ext.util.Format&quot;,
                    sourceMethod: &quot;number&quot;,
                    value: v,
                    formatString: formatString,
                    msg: &quot;Invalid number format, should have no more than 1 decimal&quot;
                });
                //&lt;/debug&gt;
            } else if (psplit.length &gt; 1) {
                v = Ext.Number.toFixed(v, psplit[1].length);
            } else {
                v = Ext.Number.toFixed(v, 0);
            }

            fnum = v.toString();

            psplit = fnum.split('.');

            if (hasComma) {
                cnum = psplit[0];
                parr = [];
                j = cnum.length;
                m = Math.floor(j / 3);
                n = cnum.length % 3 || 3;

                for (i = 0; i &lt; j; i += n) {
                    if (i !== 0) {
                        n = 3;
                    }

                    parr[parr.length] = cnum.substr(i, n);
                    m -= 1;
                }
                fnum = parr.join(comma);
                if (psplit[1]) {
                    fnum += dec + psplit[1];
                }
            } else {
                if (psplit[1]) {
                    fnum = psplit[0] + dec + psplit[1];
                }
            }

            if (neg) {
                /*
                 * Edge case. If we have a very small negative number it will get rounded to 0,
                 * however the initial check at the top will still report as negative. Replace
                 * everything but 1-9 and check if the string is empty to determine a 0 value.
                 */
                neg = fnum.replace(/[^1-9]/g, '') !== '';
            }

            return (neg ? '-' : '') + formatString.replace(/[\d,?\.?]+/, fnum);
        },

<span id='Ext-util-Format-method-numberRenderer'>        /**
</span>         * Returns a number rendering function that can be reused to apply a number format multiple
         * times efficiently.
         *
         * @param {String} format Any valid number format string for {@link #number}
         * @return {Function} The number formatting function
         */
        numberRenderer : function(format) {
            return function(v) {
                return UtilFormat.number(v, format);
            };
        },

<span id='Ext-util-Format-method-plural'>        /**
</span>         * Selectively do a plural form of a word based on a numeric value. For example, in a template,
         * `{commentCount:plural(&quot;Comment&quot;)}`  would result in `&quot;1 Comment&quot;` if commentCount was 1 or
         * would be `&quot;x Comments&quot;` if the value is 0 or greater than 1.
         *
         * @param {Number} value The value to compare against
         * @param {String} singular The singular form of the word
         * @param {String} [plural] The plural form of the word (defaults to the singular with an &quot;s&quot;)
         */
        plural : function(v, s, p) {
            return v +' ' + (v == 1 ? s : (p ? p : s+'s'));
        },

<span id='Ext-util-Format-method-nl2br'>        /**
</span>         * Converts newline characters to the HTML tag `&lt;br/&gt;`
         *
         * @param {String} The string value to format.
         * @return {String} The string with embedded `&lt;br/&gt;` tags in place of newlines.
         */
        nl2br : function(v) {
            return Ext.isEmpty(v) ? '' : v.replace(nl2brRe, '&lt;br/&gt;');
        },

<span id='Ext-util-Format-method-capitalize'>        /**
</span>         * Alias for {@link Ext.String#capitalize}.
         * @method
         * @inheritdoc Ext.String#capitalize
         */
        capitalize: Ext.String.capitalize,

<span id='Ext-util-Format-method-ellipsis'>        /**
</span>         * Alias for {@link Ext.String#ellipsis}.
         * @method
         * @inheritdoc Ext.String#ellipsis
         */
        ellipsis: Ext.String.ellipsis,

<span id='Ext-util-Format-method-format'>        /**
</span>         * Alias for {@link Ext.String#format}.
         * @method
         * @inheritdoc Ext.String#format
         */
        format: Ext.String.format,

<span id='Ext-util-Format-method-htmlDecode'>        /**
</span>         * Alias for {@link Ext.String#htmlDecode}.
         * @method
         * @inheritdoc Ext.String#htmlDecode
         */
        htmlDecode: Ext.String.htmlDecode,

<span id='Ext-util-Format-method-htmlEncode'>        /**
</span>         * Alias for {@link Ext.String#htmlEncode}.
         * @method
         * @inheritdoc Ext.String#htmlEncode
         */
        htmlEncode: Ext.String.htmlEncode,

<span id='Ext-util-Format-method-leftPad'>        /**
</span>         * Alias for {@link Ext.String#leftPad}.
         * @method
         * @inheritdoc Ext.String#leftPad
         */
        leftPad: Ext.String.leftPad,

<span id='Ext-util-Format-method-trim'>        /**
</span>         * Alias for {@link Ext.String#trim}.
         * @method
         * @inheritdoc Ext.String#trim
         */
        trim : Ext.String.trim,

<span id='Ext-util-Format-method-parseBox'>        /**
</span>         * Parses a number or string representing margin sizes into an object.
         * Supports CSS-style margin declarations (e.g. 10, &quot;10&quot;, &quot;10 10&quot;, &quot;10 10 10&quot; and
         * &quot;10 10 10 10&quot; are all valid options and would return the same result).
         *
         * @param {Number/String} v The encoded margins
         * @return {Object} An object with margin sizes for top, right, bottom and left
         */
        parseBox : function(box) {
          box = Ext.isEmpty(box) ? '' : box;
            if (Ext.isNumber(box)) {
                box = box.toString();
            }
            var parts  = box.split(' '),
                ln = parts.length;

            if (ln == 1) {
                parts[1] = parts[2] = parts[3] = parts[0];
            }
            else if (ln == 2) {
                parts[2] = parts[0];
                parts[3] = parts[1];
            }
            else if (ln == 3) {
                parts[3] = parts[1];
            }

            return {
                top   :parseInt(parts[0], 10) || 0,
                right :parseInt(parts[1], 10) || 0,
                bottom:parseInt(parts[2], 10) || 0,
                left  :parseInt(parts[3], 10) || 0
            };
        },

<span id='Ext-util-Format-method-escapeRegex'>        /**
</span>         * Escapes the passed string for use in a regular expression.
         * @param {String} str
         * @return {String}
         */
        escapeRegex : function(s) {
            return s.replace(/([\-.*+?\^${}()|\[\]\/\\])/g, &quot;\\$1&quot;);
        }
    });
}());
</pre>
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