libs/web: add String.serialize() and String.format() to cbi.js

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

@@ -264,7 +264,7 @@ function cbi_d_update() {
 		}
 	}
 
-	if (entry.parent) {
+	if (entry && entry.parent) {
 		cbi_t_update();
 	}
 
@@ -516,3 +516,175 @@ function cbi_validate_field(cbid, optional, type)
 	}
 }
 
+if( ! String.serialize )
+	String.serialize = function(o)
+	{
+		switch(typeof(o))
+		{
+			case 'object':
+				// null
+				if( o == null )
+				{
+					return 'null';
+				}
+
+				// array
+				else if( o.length )
+				{
+					var i, s = '';
+
+					for( var i = 0; i < o.length; i++ )
+						s += (s ? ', ' : '') + String.serialize(o[i]);
+
+					return '[ ' + s + ' ]';
+				}
+
+				// object
+				else
+				{
+					var k, s = '';
+
+					for( k in o )
+						s += (s ? ', ' : '') + k + ': ' + String.serialize(o[k]);
+
+					return '{ ' + s + ' }';
+				}
+
+				break;
+
+			case 'string':
+				// complex string
+				if( o.match(/[^a-zA-Z0-9_,.: -]/) )
+					return 'decodeURIComponent("' + encodeURIComponent(o) + '")';
+
+				// simple string
+				else
+					return '"' + o + '"';
+
+				break;
+
+			default:
+				return o.toString();
+		}
+	}
+
+
+if( ! String.format )
+	String.format = function()
+	{
+		if (!arguments || arguments.length < 1 || !RegExp)
+			return;
+
+		var html_esc = [/&/g, '&#38;', /"/g, '&#34;', /'/g, '&#39;', /</g, '&#60;', />/g, '&#62;'];
+		var quot_esc = [/"/g, '&#34;', /'/g, '&#39;'];
+
+		function esc(s, r) {
+			for( var i = 0; i < r.length; i += 2 )
+				s = s.replace(r[i], r[i+1]);
+			return s;
+		}
+
+		var str = arguments[0];
+		var out = '';
+		var re = /^(([^%]*)%('.|0|\x20)?(-)?(\d+)?(\.\d+)?(%|b|c|d|u|f|o|s|x|X|q|h|j))/;
+		var a = b = [], numSubstitutions = 0, numMatches = 0;
+
+		while( a = re.exec(str) )
+		{
+			var m = a[1];
+			var leftpart = a[2], pPad = a[3], pJustify = a[4], pMinLength = a[5];
+			var pPrecision = a[6], pType = a[7];
+
+			numMatches++;
+
+			if (pType == '%')
+			{
+				subst = '%';
+			}
+			else
+			{
+				if (numSubstitutions++ < arguments.length)
+				{
+					var param = arguments[numSubstitutions];
+
+					var pad = '';
+					if (pPad && pPad.substr(0,1) == "'")
+						pad = leftpart.substr(1,1);
+					else if (pPad)
+						pad = pPad;
+
+					var justifyRight = true;
+					if (pJustify && pJustify === "-")
+						justifyRight = false;
+
+					var minLength = -1;
+					if (pMinLength)
+						minLength = parseInt(pMinLength);
+
+					var precision = -1;
+					if (pPrecision && pType == 'f')
+						precision = parseInt(pPrecision.substring(1));
+
+					var subst = param;
+
+					switch(pType)
+					{
+						case 'b':
+							subst = (parseInt(param) || 0).toString(2);
+							break;
+
+						case 'c':
+							subst = String.fromCharCode(parseInt(param) || 0);
+							break;
+
+						case 'd':
+							subst = (parseInt(param) || 0);
+							break;
+
+						case 'u':
+							subst = Math.abs(parseInt(param) || 0);
+							break;
+
+						case 'f':
+							subst = (precision > -1)
+								? Math.round((parseFloat(param) || 0.0) * Math.pow(10, precision)) / Math.pow(10, precision)
+								: (parseFloat(param) || 0.0);
+							break;
+
+						case 'o':
+							subst = (parseInt(param) || 0).toString(8);
+							break;
+
+						case 's':
+							subst = param;
+							break;
+
+						case 'x':
+							subst = ('' + (parseInt(param) || 0).toString(16)).toLowerCase();
+							break;
+
+						case 'X':
+							subst = ('' + (parseInt(param) || 0).toString(16)).toUpperCase();
+							break;
+
+						case 'h':
+							subst = esc(param, html_esc);
+							break;
+
+						case 'q':
+							subst = esc(param, quot_esc);
+							break;
+
+						case 'j':
+							subst = String.serialize(param);
+							break;
+					}
+				}
+			}
+
+			out += leftpart + subst;
+			str = str.substr(m.length);
+		}
+
+		return out + str;
+	}