Cast values containing numbers into Number objects in Filter and SLD

format to ensure correct comparison of scale denominators against map 
scale  and filters against features. Introduces a new 
OpenLayers.String.numericIf function. r=fredj,tschaub (closes #1874)


git-svn-id: http://svn.openlayers.org/trunk/openlayers@8927 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Format/Filter/v1.js

@@ -168,16 +168,19 @@ OpenLayers.Format.Filter.v1 = OpenLayers.Class(OpenLayers.Format.XML, {
                 obj.filters.push(filter);
             },
             "Literal": function(node, obj) {
-                obj.value = this.getChildValue(node);
+                obj.value = OpenLayers.String.numericIf(
+                    this.getChildValue(node));
             },
             "PropertyName": function(node, filter) {
                 filter.property = this.getChildValue(node);
             },
             "LowerBoundary": function(node, filter) {
-                filter.lowerBoundary = this.readOgcExpression(node);
+                filter.lowerBoundary = OpenLayers.String.numericIf(
+                    this.readOgcExpression(node));
             },
             "UpperBoundary": function(node, filter) {
-                filter.upperBoundary = this.readOgcExpression(node);
+                filter.upperBoundary = OpenLayers.String.numericIf(
+                    this.readOgcExpression(node));
             },
             "Intersects": function(node, obj) {
                 this.readSpatial(node, obj, OpenLayers.Filter.Spatial.INTERSECTS);

lib/OpenLayers/Format/SLD/v1.js

@@ -154,13 +154,13 @@ OpenLayers.Format.SLD.v1 = OpenLayers.Class(OpenLayers.Format.Filter.v1_0_0, {
                 rule.elseFilter = true;
             },
             "MinScaleDenominator": function(node, rule) {
-                rule.minScaleDenominator = this.getChildValue(node);
+                rule.minScaleDenominator = parseFloat(this.getChildValue(node));
             },
             "MaxScaleDenominator": function(node, rule) {
-                rule.maxScaleDenominator = this.getChildValue(node);
+                rule.maxScaleDenominator = parseFloat(this.getChildValue(node));
             },
             "LineSymbolizer": function(node, rule) {
-                // OpenLayers doens't do painter's order, instead we extend
+                // OpenLayers doesn't do painter's order, instead we extend
                 var symbolizer = rule.symbolizer["Line"] || {};
                 this.readChildNodes(node, symbolizer);
                 // in case it didn't exist before