js/jquery/jquery.sprintf.js

   1 /**
   2  * sprintf and vsprintf for jQuery
   3  * somewhat based on http://jan.moesen.nu/code/javascript/sprintf-and-printf-in-javascript/
   4  *
   5  * Copyright (c) 2008 Sabin Iacob (m0n5t3r) <iacobs@m0n5t3r.info>
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * @license http://www.gnu.org/licenses/gpl.html
  17  * @project jquery.sprintf
  18  */
  19 (function($){
  20         var formats = {
  21                 'b': function(val) {return parseInt(val, 10).toString(2);},
  22                 'c': function(val) {return String.fromCharCode(parseInt(val, 10));},
  23                 'd': function(val) {return parseInt(val, 10);},
  24                 'u': function(val) {return Math.abs(val);},
  25                 'f': function(val, p) {
  26                         p = parseInt(p, 10);
  27                         val = parseFloat(val);
  28                         if(isNaN(p && val)) {
  29                                 return NaN;
  30                         }
  31                         return p && val.toFixed(p) || val;
  32                 },
  33                 'o': function(val) {return parseInt(val, 10).toString(8);},
  34                 's': function(val) {return val;},
  35                 'x': function(val) {return ('' + parseInt(val, 10).toString(16)).toLowerCase();},
  36                 'X': function(val) {return ('' + parseInt(val, 10).toString(16)).toUpperCase();}
  37         };
  38
  39         var re = /%(?:(\d+)?(?:\.(\d+))?|\(([^)]+)\))([%bcdufosxX])/g;
  40
  41         var dispatch = function(data){
  42                 if(data.length == 1 && typeof data[0] == 'object') { //python-style printf
  43                         data = data[0];
  44                         return function(match, w, p, lbl, fmt, off, str) {
  45                                 return formats[fmt](data[lbl]);
  46                         };
  47                 } else { // regular, somewhat incomplete, printf
  48                         var idx = 0;
  49                         return function(match, w, p, lbl, fmt, off, str) {
  50                                 if(fmt == '%') {
  51                                         return '%';
  52                                 }
  53                                 return formats[fmt](data[idx++], p);
  54                         };
  55                 }
  56         };
  57
  58         $.extend({
  59                 sprintf: function(format) {
  60                         var argv = Array.apply(null, arguments).slice(1);
  61                         return format.replace(re, dispatch(argv));
  62                 },
  63                 vsprintf: function(format, data) {
  64                         return format.replace(re, dispatch(data));
  65                 }
  66         });
  67 })(jQuery);
  68