libs/web/htdocs/luci-static/resources/cbi.js

   1 /*
   2         LuCI - Lua Configuration Interface
   3
   4         Copyright 2008 Steven Barth <steven@midlink.org>
   5         Copyright 2008-2010 Jo-Philipp Wich <xm@subsignal.org>
   6
   7         Licensed under the Apache License, Version 2.0 (the "License");
   8         you may not use this file except in compliance with the License.
   9         You may obtain a copy of the License at
  10
  11         http://www.apache.org/licenses/LICENSE-2.0
  12 */
  13
  14 var cbi_d = [];
  15 var cbi_t = [];
  16 var cbi_c = [];
  17
  18 var cbi_validators = {
  19
  20         'integer': function(v)
  21         {
  22                 return (v.match(/^-?[0-9]+$/) != null);
  23         },
  24
  25         'uinteger': function(v)
  26         {
  27                 return (cbi_validators.integer(v) && (v >= 0));
  28         },
  29
  30         'ipaddr': function(v)
  31         {
  32                 return cbi_validators.ip4addr(v) || cbi_validators.ip6addr(v);
  33         },
  34
  35         'ip4addr': function(v)
  36         {
  37                 if( v.match(/^(\d+)\.(\d+)\.(\d+)\.(\d+)(\/(\d+))?$/) )
  38                 {
  39                         return (RegExp.$1 >= 0) && (RegExp.$1 <= 255) &&
  40                                (RegExp.$2 >= 0) && (RegExp.$2 <= 255) &&
  41                                (RegExp.$3 >= 0) && (RegExp.$3 <= 255) &&
  42                                (RegExp.$4 >= 0) && (RegExp.$4 <= 255) &&
  43                                (!RegExp.$5 || ((RegExp.$6 >= 0) && (RegExp.$6 <= 32)))
  44                         ;
  45                 }
  46
  47                 return false;
  48         },
  49
  50         'ip6addr': function(v)
  51         {
  52                 if( v.match(/^([a-fA-F0-9:.]+)(\/(\d+))?$/) )
  53                 {
  54                         if( !RegExp.$2 || ((RegExp.$3 >= 0) && (RegExp.$3 <= 128)) )
  55                         {
  56                                 var addr = RegExp.$1;
  57
  58                                 if( addr == '::' )
  59                                 {
  60                                         return true;
  61                                 }
  62
  63                                 if( addr.indexOf('.') > 0 )
  64                                 {
  65                                         var off = addr.lastIndexOf(':');
  66
  67                                         if( !(off && cbi_validators.ip4addr(addr.substr(off+1))) )
  68                                                 return false;
  69
  70                                         addr = addr.substr(0, off) + ':0:0';
  71                                 }
  72
  73                                 if( addr.indexOf('::') >= 0 )
  74                                 {
  75                                         var colons = 0;
  76                                         var fill = '0';
  77
  78                                         for( var i = 1; i < (addr.length-1); i++ )
  79                                                 if( addr.charAt(i) == ':' )
  80                                                         colons++;
  81
  82                                         if( colons > 7 )
  83                                                 return false;
  84
  85                                         for( var i = 0; i < (7 - colons); i++ )
  86                                                 fill += ':0';
  87
  88                                         if (addr.match(/^(.*?)::(.*?)$/))
  89                                                 addr = (RegExp.$1 ? RegExp.$1 + ':' : '') + fill +
  90                                                        (RegExp.$2 ? ':' + RegExp.$2 : '');
  91                                 }
  92
  93                                 return (addr.match(/^(?:[a-fA-F0-9]{1,4}:){7}[a-fA-F0-9]{1,4}$/) != null);
  94                         }
  95                 }
  96
  97                 return false;
  98         },
  99
 100         'port': function(v)
 101         {
 102                 return cbi_validators.integer(v) && (v >= 0) && (v <= 65535);
 103         },
 104
 105         'portrange': function(v)
 106         {
 107                 if( v.match(/^(\d+)-(\d+)$/) )
 108                 {
 109                         var p1 = RegExp.$1;
 110                         var p2 = RegExp.$2;
 111
 112                         return cbi_validators.port(p1) &&
 113                                cbi_validators.port(p2) &&
 114                                (parseInt(p1) <= parseInt(p2))
 115                         ;
 116                 }
 117                 else
 118                 {
 119                         return cbi_validators.port(v);
 120                 }
 121         },
 122
 123         'macaddr': function(v)
 124         {
 125                 return (v.match(/^([a-fA-F0-9]{2}:){5}[a-fA-F0-9]{2}$/) != null);
 126         },
 127
 128         'host': function(v)
 129         {
 130                 return cbi_validators.hostname(v) || cbi_validators.ipaddr(v);
 131         },
 132
 133         'hostname': function(v)
 134         {
 135                 return (v.match(/^[a-zA-Z_][a-zA-Z0-9_\-.]*$/) != null);
 136         },
 137
 138         'wpakey': function(v)
 139         {
 140                 if( v.length == 64 )
 141                         return (v.match(/^[a-fA-F0-9]{64}$/) != null);
 142                 else
 143                         return (v.length >= 8) && (v.length <= 63);
 144         },
 145
 146         'wepkey': function(v)
 147         {
 148                 if( v.substr(0,2) == 's:' )
 149                         v = v.substr(2);
 150
 151                 if( (v.length == 10) || (v.length == 26) )
 152                         return (v.match(/^[a-fA-F0-9]{10,26}$/) != null);
 153                 else
 154                         return (v.length == 5) || (v.length == 13);
 155         },
 156
 157         'uciname': function(v)
 158         {
 159                 return (v.match(/^[a-zA-Z0-9_]+$/) != null);
 160         },
 161
 162         'range': function(v, args)
 163         {
 164                 var min = parseInt(args[0]);
 165                 var max = parseInt(args[1]);
 166                 var val = parseInt(v);
 167
 168                 if (!isNaN(min) && !isNaN(max) && !isNaN(val))
 169                         return ((val >= min) && (val <= max));
 170
 171                 return false;
 172         }
 173 };
 174
 175
 176 function cbi_d_add(field, dep, next) {
 177         var obj = document.getElementById(field);
 178         if (obj) {
 179                 var entry
 180                 for (var i=0; i<cbi_d.length; i++) {
 181                         if (cbi_d[i].id == field) {
 182                                 entry = cbi_d[i];
 183                                 break;
 184                         }
 185                 }
 186                 if (!entry) {
 187                         entry = {
 188                                 "node": obj,
 189                                 "id": field,
 190                                 "parent": obj.parentNode.id,
 191                                 "next": next,
 192                                 "deps": []
 193                         };
 194                         cbi_d.unshift(entry);
 195                 }
 196                 entry.deps.push(dep)
 197         }
 198 }
 199
 200 function cbi_d_checkvalue(target, ref) {
 201         var t = document.getElementById(target);
 202         var value;
 203
 204         if (!t) {
 205                 var tl = document.getElementsByName(target);
 206
 207                 if( tl.length > 0 && tl[0].type == 'radio' )
 208                         for( var i = 0; i < tl.length; i++ )
 209                                 if( tl[i].checked ) {
 210                                         value = tl[i].value;
 211                                         break;
 212                                 }
 213
 214                 value = value ? value : "";
 215         } else if (!t.value) {
 216                 value = "";
 217         } else {
 218                 value = t.value;
 219
 220                 if (t.type == "checkbox") {
 221                         value = t.checked ? value : "";
 222                 }
 223         }
 224
 225         return (value == ref)
 226 }
 227
 228 function cbi_d_check(deps) {
 229         var reverse;
 230         var def = false;
 231         for (var i=0; i<deps.length; i++) {
 232                 var istat = true;
 233                 reverse = false;
 234                 for (var j in deps[i]) {
 235                         if (j == "!reverse") {
 236                                 reverse = true;
 237                         } else if (j == "!default") {
 238                                 def = true;
 239                                 istat = false;
 240                         } else {
 241                                 istat = (istat && cbi_d_checkvalue(j, deps[i][j]))
 242                         }
 243                 }
 244                 if (istat) {
 245                         return !reverse;
 246                 }
 247         }
 248         return def;
 249 }
 250
 251 function cbi_d_update() {
 252         var state = false;
 253         for (var i=0; i<cbi_d.length; i++) {
 254                 var entry = cbi_d[i];
 255                 var next  = document.getElementById(entry.next)
 256                 var node  = document.getElementById(entry.id)
 257                 var parent = document.getElementById(entry.parent)
 258
 259                 if (node && node.parentNode && !cbi_d_check(entry.deps)) {
 260                         node.parentNode.removeChild(node);
 261                         state = true;
 262                         if( entry.parent )
 263                                 cbi_c[entry.parent]--;
 264                 } else if ((!node || !node.parentNode) && cbi_d_check(entry.deps)) {
 265                         if (!next) {
 266                                 parent.appendChild(entry.node);
 267                         } else {
 268                                 next.parentNode.insertBefore(entry.node, next);
 269                         }
 270                         state = true;
 271                         if( entry.parent )
 272                                 cbi_c[entry.parent]++;
 273                 }
 274         }
 275
 276         if (entry && entry.parent) {
 277                 cbi_t_update();
 278         }
 279
 280         if (state) {
 281                 cbi_d_update();
 282         }
 283 }
 284
 285 function cbi_bind(obj, type, callback, mode) {
 286         if (!obj.addEventListener) {
 287                 obj.attachEvent('on' + type,
 288                         function(){
 289                                 var e = window.event;
 290
 291                                 if (!e.target && e.srcElement)
 292                                         e.target = e.srcElement;
 293
 294                                 return !!callback(e);
 295                         }
 296                 );
 297         } else {
 298                 obj.addEventListener(type, callback, !!mode);
 299         }
 300         return obj;
 301 }
 302
 303 function cbi_combobox(id, values, def, man) {
 304         var selid = "cbi.combobox." + id;
 305         if (document.getElementById(selid)) {
 306                 return
 307         }
 308
 309         var obj = document.getElementById(id)
 310         var sel = document.createElement("select");
 311                 sel.id = selid;
 312                 sel.className = 'cbi-input-select';
 313
 314         if (obj.nextSibling) {
 315                 obj.parentNode.insertBefore(sel, obj.nextSibling);
 316         } else {
 317                 obj.parentNode.appendChild(sel);
 318         }
 319
 320         var dt = obj.getAttribute('cbi_datatype');
 321         var op = obj.getAttribute('cbi_optional');
 322
 323         if (dt)
 324                 cbi_validate_field(sel, op == 'true', dt);
 325
 326         if (!values[obj.value]) {
 327                 if (obj.value == "") {
 328                         var optdef = document.createElement("option");
 329                         optdef.value = "";
 330                         optdef.appendChild(document.createTextNode(def));
 331                         sel.appendChild(optdef);
 332                 } else {
 333                         var opt = document.createElement("option");
 334                         opt.value = obj.value;
 335                         opt.selected = "selected";
 336                         opt.appendChild(document.createTextNode(obj.value));
 337                         sel.appendChild(opt);
 338                 }
 339         }
 340
 341         for (var i in values) {
 342                 var opt = document.createElement("option");
 343                 opt.value = i;
 344
 345                 if (obj.value == i) {
 346                         opt.selected = "selected";
 347                 }
 348
 349                 opt.appendChild(document.createTextNode(values[i]));
 350                 sel.appendChild(opt);
 351         }
 352
 353         var optman = document.createElement("option");
 354         optman.value = "";
 355         optman.appendChild(document.createTextNode(man));
 356         sel.appendChild(optman);
 357
 358         obj.style.display = "none";
 359
 360         cbi_bind(sel, "change", function() {
 361                 if (sel.selectedIndex == sel.options.length - 1) {
 362                         obj.style.display = "inline";
 363                         sel.parentNode.removeChild(sel);
 364                         obj.focus();
 365                 } else {
 366                         obj.value = sel.options[sel.selectedIndex].value;
 367                 }
 368
 369                 try {
 370                         cbi_d_update();
 371                 } catch (e) {
 372                         //Do nothing
 373                 }
 374         })
 375 }
 376
 377 function cbi_combobox_init(id, values, def, man) {
 378         var obj = document.getElementById(id);
 379         cbi_bind(obj, "blur", function() {
 380                 cbi_combobox(id, values, def, man)
 381         });
 382         cbi_combobox(id, values, def, man);
 383 }
 384
 385 function cbi_filebrowser(id, url, defpath) {
 386         var field   = document.getElementById(id);
 387         var browser = window.open(
 388                 url + ( field.value || defpath || '' ) + '?field=' + id,
 389                 "luci_filebrowser", "width=300,height=400,left=100,top=200,scrollbars=yes"
 390         );
 391
 392         browser.focus();
 393 }
 394
 395 function cbi_dynlist_init(name)
 396 {
 397         function cbi_dynlist_renumber(e)
 398         {
 399                 var count = 1;
 400                 var childs = e.parentNode.childNodes;
 401
 402                 for( var i = 0; i < childs.length; i++ )
 403                         if( childs[i].name == name )
 404                                 childs[i].id = name + '.' + (count++);
 405
 406                 e.focus();
 407         }
 408
 409         function cbi_dynlist_keypress(ev)
 410         {
 411                 ev = ev ? ev : window.event;
 412
 413                 var se = ev.target ? ev.target : ev.srcElement;
 414
 415                 if (se.nodeType == 3)
 416                         se = se.parentNode;
 417
 418                 switch (ev.keyCode)
 419                 {
 420                         /* backspace, delete */
 421                         case 8:
 422                         case 46:
 423                                 if (se.value.length == 0)
 424                                 {
 425                                         if (ev.preventDefault)
 426                                                 ev.preventDefault();
 427
 428                                         return false;
 429                                 }
 430
 431                                 return true;
 432
 433                         /* enter, arrow up, arrow down */
 434                         case 13:
 435                         case 38:
 436                         case 40:
 437                                 if (ev.preventDefault)
 438                                         ev.preventDefault();
 439
 440                                 return false;
 441                 }
 442
 443                 return true;
 444         }
 445
 446         function cbi_dynlist_keydown(ev)
 447         {
 448                 ev = ev ? ev : window.event;
 449
 450                 var se = ev.target ? ev.target : ev.srcElement;
 451
 452                 if (se.nodeType == 3)
 453                         se = se.parentNode;
 454
 455                 var prev = se.previousSibling;
 456                 while (prev && prev.name != name)
 457                         prev = prev.previousSibling;
 458
 459                 var next = se.nextSibling;
 460                 while (next && next.name != name)
 461                         next = next.nextSibling;
 462
 463                 switch (ev.keyCode)
 464                 {
 465                         /* backspace, delete */
 466                         case 8:
 467                         case 46:
 468                                 var jump = (ev.keyCode == 8)
 469                                         ? (prev || next) : (next || prev);
 470
 471                                 if (se.value.length == 0 && jump)
 472                                 {
 473                                         se.parentNode.removeChild(se.nextSibling);
 474                                         se.parentNode.removeChild(se);
 475
 476                                         cbi_dynlist_renumber(jump);
 477
 478                                         if (ev.preventDefault)
 479                                                 ev.preventDefault();
 480
 481                                         return false;
 482                                 }
 483
 484                                 break;
 485
 486                         /* enter */
 487                         case 13:
 488                                 var n = document.createElement('input');
 489                                         n.name       = se.name;
 490                                         n.type       = se.type;
 491
 492                                 cbi_bind(n, 'keydown',  cbi_dynlist_keydown);
 493                                 cbi_bind(n, 'keypress', cbi_dynlist_keypress);
 494
 495                                 if (next)
 496                                 {
 497                                         se.parentNode.insertBefore(n, next);
 498                                         se.parentNode.insertBefore(document.createElement('br'), next);
 499                                 }
 500                                 else
 501                                 {
 502                                         se.parentNode.appendChild(n);
 503                                         se.parentNode.appendChild(document.createElement('br'));
 504                                 }
 505
 506                                 var dt = se.getAttribute('cbi_datatype');
 507                                 var op = se.getAttribute('cbi_optional') == 'true';
 508
 509                                 if (dt)
 510                                         cbi_validate_field(n, op, dt);
 511
 512                                 cbi_dynlist_renumber(n);
 513                                 break;
 514
 515                         /* arrow up */
 516                         case 38:
 517                                 if (prev)
 518                                         prev.focus();
 519
 520                                 break;
 521
 522                         /* arrow down */
 523                         case 40:
 524                                 if (next)
 525                                         next.focus();
 526
 527                                 break;
 528                 }
 529
 530                 return true;
 531         }
 532
 533         var inputs = document.getElementsByName(name);
 534         for( var i = 0; i < inputs.length; i++ )
 535         {
 536                 cbi_bind(inputs[i], 'keydown',  cbi_dynlist_keydown);
 537                 cbi_bind(inputs[i], 'keypress', cbi_dynlist_keypress);
 538         }
 539 }
 540
 541 //Hijacks the CBI form to send via XHR (requires Prototype)
 542 function cbi_hijack_forms(layer, win, fail, load) {
 543         var forms = layer.getElementsByTagName('form');
 544         for (var i=0; i<forms.length; i++) {
 545                 $(forms[i]).observe('submit', function(event) {
 546                         // Prevent the form from also submitting the regular way
 547                         event.stop();
 548
 549                         // Submit via XHR
 550                         event.element().request({
 551                                 onSuccess: win,
 552                                 onFailure: fail
 553                         });
 554
 555                         if (load) {
 556                                 load();
 557                         }
 558                 });
 559         }
 560 }
 561
 562
 563 function cbi_t_add(section, tab) {
 564         var t = document.getElementById('tab.' + section + '.' + tab);
 565         var c = document.getElementById('container.' + section + '.' + tab);
 566
 567         if( t && c ) {
 568                 cbi_t[section] = (cbi_t[section] || [ ]);
 569                 cbi_t[section][tab] = { 'tab': t, 'container': c, 'cid': c.id };
 570         }
 571 }
 572
 573 function cbi_t_switch(section, tab) {
 574         if( cbi_t[section] && cbi_t[section][tab] ) {
 575                 var o = cbi_t[section][tab];
 576                 var h = document.getElementById('tab.' + section);
 577                 for( var tid in cbi_t[section] ) {
 578                         var o2 = cbi_t[section][tid];
 579                         if( o.tab.id != o2.tab.id ) {
 580                                 o2.tab.className = o2.tab.className.replace(/(^| )cbi-tab( |$)/, " cbi-tab-disabled ");
 581                                 o2.container.style.display = 'none';
 582                         }
 583                         else {
 584                                 if(h) h.value = tab;
 585                                 o2.tab.className = o2.tab.className.replace(/(^| )cbi-tab-disabled( |$)/, " cbi-tab ");
 586                                 o2.container.style.display = 'block';
 587                         }
 588                 }
 589         }
 590         return false
 591 }
 592
 593 function cbi_t_update() {
 594         var hl_tabs = [ ];
 595
 596         for( var sid in cbi_t )
 597                 for( var tid in cbi_t[sid] )
 598                         if( cbi_c[cbi_t[sid][tid].cid] == 0 ) {
 599                                 cbi_t[sid][tid].tab.style.display = 'none';
 600                         }
 601                         else if( cbi_t[sid][tid].tab && cbi_t[sid][tid].tab.style.display == 'none' ) {
 602                                 cbi_t[sid][tid].tab.style.display = '';
 603
 604                                 var t = cbi_t[sid][tid].tab;
 605                                 t.className += ' cbi-tab-highlighted';
 606                                 hl_tabs.push(t);
 607                         }
 608
 609         if( hl_tabs.length > 0 )
 610                 window.setTimeout(function() {
 611                         for( var i = 0; i < hl_tabs.length; i++ )
 612                                 hl_tabs[i].className = hl_tabs[i].className.replace(/ cbi-tab-highlighted/g, '');
 613                 }, 750);
 614 }
 615
 616
 617 function cbi_validate_form(form, errmsg)
 618 {
 619         /* if triggered by a section removal or addition, don't validate */
 620         if( form.cbi_state == 'add-section' || form.cbi_state == 'del-section' )
 621                 return true;
 622
 623         if( form.cbi_validators )
 624         {
 625                 for( var i = 0; i < form.cbi_validators.length; i++ )
 626                 {
 627                         var validator = form.cbi_validators[i];
 628                         if( !validator() && errmsg )
 629                         {
 630                                 alert(errmsg);
 631                                 return false;
 632                         }
 633                 }
 634         }
 635
 636         return true;
 637 }
 638
 639 function cbi_validate_reset(form)
 640 {
 641         window.setTimeout(
 642                 function() { cbi_validate_form(form, null) }, 100
 643         );
 644
 645         return true;
 646 }
 647
 648 function cbi_validate_field(cbid, optional, type)
 649 {
 650         var field = (typeof cbid == "string") ? document.getElementById(cbid) : cbid;
 651         var vargs;
 652
 653         if( type.match(/^(\w+)\(([^\(\)]+)\)/) )
 654         {
 655                 type  = RegExp.$1;
 656                 vargs = RegExp.$2.split(/\s*,\s*/);
 657         }
 658
 659         var vldcb = cbi_validators[type];
 660
 661         if( field && vldcb )
 662         {
 663                 var validator = function()
 664                 {
 665                         // is not detached
 666                         if( field.form )
 667                         {
 668                                 field.className = field.className.replace(/ cbi-input-invalid/g, '');
 669
 670                                 // validate value
 671                                 var value = (field.options && field.options.selectedIndex > -1)
 672                                         ? field.options[field.options.selectedIndex].value : field.value;
 673
 674                                 if( !(((value.length == 0) && optional) || vldcb(value, vargs)) )
 675                                 {
 676                                         // invalid
 677                                         field.className += ' cbi-input-invalid';
 678                                         return false;
 679                                 }
 680                         }
 681
 682                         return true;
 683                 };
 684
 685                 if( ! field.form.cbi_validators )
 686                         field.form.cbi_validators = [ ];
 687
 688                 field.form.cbi_validators.push(validator);
 689
 690                 cbi_bind(field, "blur",  validator);
 691                 cbi_bind(field, "keyup", validator);
 692
 693                 if (field.nodeName == 'SELECT')
 694                 {
 695                         cbi_bind(field, "change", validator);
 696                         cbi_bind(field, "click",  validator);
 697                 }
 698
 699                 field.setAttribute("cbi_validate", validator);
 700                 field.setAttribute("cbi_datatype", type);
 701                 field.setAttribute("cbi_optional", (!!optional).toString());
 702
 703                 validator();
 704
 705                 var fcbox = document.getElementById('cbi.combobox.' + field.id);
 706                 if (fcbox)
 707                         cbi_validate_field(fcbox, optional, type);
 708         }
 709 }
 710
 711 if( ! String.serialize )
 712         String.serialize = function(o)
 713         {
 714                 switch(typeof(o))
 715                 {
 716                         case 'object':
 717                                 // null
 718                                 if( o == null )
 719                                 {
 720                                         return 'null';
 721                                 }
 722
 723                                 // array
 724                                 else if( o.length )
 725                                 {
 726                                         var i, s = '';
 727
 728                                         for( var i = 0; i < o.length; i++ )
 729                                                 s += (s ? ', ' : '') + String.serialize(o[i]);
 730
 731                                         return '[ ' + s + ' ]';
 732                                 }
 733
 734                                 // object
 735                                 else
 736                                 {
 737                                         var k, s = '';
 738
 739                                         for( k in o )
 740                                                 s += (s ? ', ' : '') + k + ': ' + String.serialize(o[k]);
 741
 742                                         return '{ ' + s + ' }';
 743                                 }
 744
 745                                 break;
 746
 747                         case 'string':
 748                                 // complex string
 749                                 if( o.match(/[^a-zA-Z0-9_,.: -]/) )
 750                                         return 'decodeURIComponent("' + encodeURIComponent(o) + '")';
 751
 752                                 // simple string
 753                                 else
 754                                         return '"' + o + '"';
 755
 756                                 break;
 757
 758                         default:
 759                                 return o.toString();
 760                 }
 761         }
 762
 763
 764 if( ! String.format )
 765         String.format = function()
 766         {
 767                 if (!arguments || arguments.length < 1 || !RegExp)
 768                         return;
 769
 770                 var html_esc = [/&/g, '&#38;', /"/g, '&#34;', /'/g, '&#39;', /</g, '&#60;', />/g, '&#62;'];
 771                 var quot_esc = [/"/g, '&#34;', /'/g, '&#39;'];
 772
 773                 function esc(s, r) {
 774                         for( var i = 0; i < r.length; i += 2 )
 775                                 s = s.replace(r[i], r[i+1]);
 776                         return s;
 777                 }
 778
 779                 var str = arguments[0];
 780                 var out = '';
 781                 var re = /^(([^%]*)%('.|0|\x20)?(-)?(\d+)?(\.\d+)?(%|b|c|d|u|f|o|s|x|X|q|h|j))/;
 782                 var a = b = [], numSubstitutions = 0, numMatches = 0;
 783
 784                 while( a = re.exec(str) )
 785                 {
 786                         var m = a[1];
 787                         var leftpart = a[2], pPad = a[3], pJustify = a[4], pMinLength = a[5];
 788                         var pPrecision = a[6], pType = a[7];
 789
 790                         numMatches++;
 791
 792                         if (pType == '%')
 793                         {
 794                                 subst = '%';
 795                         }
 796                         else
 797                         {
 798                                 if (numSubstitutions++ < arguments.length)
 799                                 {
 800                                         var param = arguments[numSubstitutions];
 801
 802                                         var pad = '';
 803                                         if (pPad && pPad.substr(0,1) == "'")
 804                                                 pad = leftpart.substr(1,1);
 805                                         else if (pPad)
 806                                                 pad = pPad;
 807
 808                                         var justifyRight = true;
 809                                         if (pJustify && pJustify === "-")
 810                                                 justifyRight = false;
 811
 812                                         var minLength = -1;
 813                                         if (pMinLength)
 814                                                 minLength = parseInt(pMinLength);
 815
 816                                         var precision = -1;
 817                                         if (pPrecision && pType == 'f')
 818                                                 precision = parseInt(pPrecision.substring(1));
 819
 820                                         var subst = param;
 821
 822                                         switch(pType)
 823                                         {
 824                                                 case 'b':
 825                                                         subst = (parseInt(param) || 0).toString(2);
 826                                                         break;
 827
 828                                                 case 'c':
 829                                                         subst = String.fromCharCode(parseInt(param) || 0);
 830                                                         break;
 831
 832                                                 case 'd':
 833                                                         subst = (parseInt(param) || 0);
 834                                                         break;
 835
 836                                                 case 'u':
 837                                                         subst = Math.abs(parseInt(param) || 0);
 838                                                         break;
 839
 840                                                 case 'f':
 841                                                         subst = (precision > -1)
 842                                                                 ? Math.round((parseFloat(param) || 0.0) * Math.pow(10, precision)) / Math.pow(10, precision)
 843                                                                 : (parseFloat(param) || 0.0);
 844                                                         break;
 845
 846                                                 case 'o':
 847                                                         subst = (parseInt(param) || 0).toString(8);
 848                                                         break;
 849
 850                                                 case 's':
 851                                                         subst = param;
 852                                                         break;
 853
 854                                                 case 'x':
 855                                                         subst = ('' + (parseInt(param) || 0).toString(16)).toLowerCase();
 856                                                         break;
 857
 858                                                 case 'X':
 859                                                         subst = ('' + (parseInt(param) || 0).toString(16)).toUpperCase();
 860                                                         break;
 861
 862                                                 case 'h':
 863                                                         subst = esc(param, html_esc);
 864                                                         break;
 865
 866                                                 case 'q':
 867                                                         subst = esc(param, quot_esc);
 868                                                         break;
 869
 870                                                 case 'j':
 871                                                         subst = String.serialize(param);
 872                                                         break;
 873                                         }
 874                                 }
 875                         }
 876
 877                         out += leftpart + subst;
 878                         str = str.substr(m.length);
 879                 }
 880
 881                 return out + str;
 882         }