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Editing: sprintf.min.js
!function(){"use strict";var re={not_string:/[^s]/,not_bool:/[^t]/,not_type:/[^T]/,not_primitive:/[^v]/,number:/[diefg]/,numeric_arg:/[bcdiefguxX]/,json:/[j]/,not_json:/[^j]/,text:/^[^\x25]+/,modulo:/^\x25{2}/,placeholder:/^\x25(?:([1-9]\d*)\$|\(([^)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-gijostTuvxX])/,key:/^([a-z_][a-z_\d]*)/i,key_access:/^\.([a-z_][a-z_\d]*)/i,index_access:/^\[(\d+)\]/,sign:/^[+-]/};function sprintf(key){return sprintf_format(sprintf_parse(key),arguments)}function vsprintf(fmt,argv){return sprintf.apply(null,[fmt].concat(argv||[]))}function sprintf_format(parse_tree,argv){var cursor=1,tree_length=parse_tree.length,arg,output="",i,k,ph,pad,pad_character,pad_length,is_positive,sign;for(i=0;i<tree_length;i++){if(typeof parse_tree[i]==="string"){output+=parse_tree[i]}else if(typeof parse_tree[i]==="object"){ph=parse_tree[i];if(ph.keys){arg=argv[cursor];for(k=0;k<ph.keys.length;k++){if(arg==undefined){throw new Error(sprintf('[sprintf] Cannot access property "%s" of undefined value "%s"',ph.keys[k],ph.keys[k-1]))}arg=arg[ph.keys[k]]}}else if(ph.param_no){arg=argv[ph.param_no]}else{arg=argv[cursor++]}if(re.not_type.test(ph.type)&&re.not_primitive.test(ph.type)&&arg instanceof Function){arg=arg()}if(re.numeric_arg.test(ph.type)&&(typeof arg!=="number"&&isNaN(arg))){throw new TypeError(sprintf("[sprintf] expecting number but found %T",arg))}if(re.number.test(ph.type)){is_positive=arg>=0}switch(ph.type){case"b":arg=parseInt(arg,10).toString(2);break;case"c":arg=String.fromCharCode(parseInt(arg,10));break;case"d":case"i":arg=parseInt(arg,10);break;case"j":arg=JSON.stringify(arg,null,ph.width?parseInt(ph.width):0);break;case"e":arg=ph.precision?parseFloat(arg).toExponential(ph.precision):parseFloat(arg).toExponential();break;case"f":arg=ph.precision?parseFloat(arg).toFixed(ph.precision):parseFloat(arg);break;case"g":arg=ph.precision?String(Number(arg.toPrecision(ph.precision))):parseFloat(arg);break;case"o":arg=(parseInt(arg,10)>>>0).toString(8);break;case"s":arg=String(arg);arg=ph.precision?arg.substring(0,ph.precision):arg;break;case"t":arg=String(!!arg);arg=ph.precision?arg.substring(0,ph.precision):arg;break;case"T":arg=Object.prototype.toString.call(arg).slice(8,-1).toLowerCase();arg=ph.precision?arg.substring(0,ph.precision):arg;break;case"u":arg=parseInt(arg,10)>>>0;break;case"v":arg=arg.valueOf();arg=ph.precision?arg.substring(0,ph.precision):arg;break;case"x":arg=(parseInt(arg,10)>>>0).toString(16);break;case"X":arg=(parseInt(arg,10)>>>0).toString(16).toUpperCase();break}if(re.json.test(ph.type)){output+=arg}else{if(re.number.test(ph.type)&&(!is_positive||ph.sign)){sign=is_positive?"+":"-";arg=arg.toString().replace(re.sign,"")}else{sign=""}pad_character=ph.pad_char?ph.pad_char==="0"?"0":ph.pad_char.charAt(1):" ";pad_length=ph.width-(sign+arg).length;pad=ph.width?pad_length>0?pad_character.repeat(pad_length):"":"";output+=ph.align?sign+arg+pad:pad_character==="0"?sign+pad+arg:pad+sign+arg}}}return output}var sprintf_cache=Object.create(null);function sprintf_parse(fmt){if(sprintf_cache[fmt]){return sprintf_cache[fmt]}var _fmt=fmt,match,parse_tree=[],arg_names=0;while(_fmt){if((match=re.text.exec(_fmt))!==null){parse_tree.push(match[0])}else if((match=re.modulo.exec(_fmt))!==null){parse_tree.push("%")}else if((match=re.placeholder.exec(_fmt))!==null){if(match[2]){arg_names|=1;var field_list=[],replacement_field=match[2],field_match=[];if((field_match=re.key.exec(replacement_field))!==null){field_list.push(field_match[1]);while((replacement_field=replacement_field.substring(field_match[0].length))!==""){if((field_match=re.key_access.exec(replacement_field))!==null){field_list.push(field_match[1])}else if((field_match=re.index_access.exec(replacement_field))!==null){field_list.push(field_match[1])}else{throw new SyntaxError("[sprintf] failed to parse named argument key")}}}else{throw new SyntaxError("[sprintf] failed to parse named argument key")}match[2]=field_list}else{arg_names|=2}if(arg_names===3){throw new Error("[sprintf] mixing positional and named placeholders is not (yet) supported")}parse_tree.push({placeholder:match[0],param_no:match[1],keys:match[2],sign:match[3],pad_char:match[4],align:match[5],width:match[6],precision:match[7],type:match[8]})}else{throw new SyntaxError("[sprintf] unexpected placeholder")}_fmt=_fmt.substring(match[0].length)}return sprintf_cache[fmt]=parse_tree}if(typeof exports!=="undefined"){exports["sprintf"]=sprintf;exports["vsprintf"]=vsprintf}if(typeof window!=="undefined"){window["sprintf"]=sprintf;window["vsprintf"]=vsprintf;if(typeof define==="function"&&define["amd"]){define(function(){return{sprintf:sprintf,vsprintf:vsprintf}})}}}();
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