Added the isSelfClosing property to the Tag interface

Split of the original Tag interface into Tag and QualifiedTag to represent the
two modes of using sax-js (using namespace prefixes or ignoring them). The
QualifiedTag interface now describes correctly the attributes property.

sax/sax-tests.ts

@@ -17,7 +17,9 @@ parser.onerror = function(e: Error) {
 parser.ontext = function(text: string) {
 };
 
-parser.onopentag = function(tag: sax.Tag) {
+parser.onopentag = function(tag: sax.QualifiedTag) {
+  for (let attr in tag.attributes)
+    console.log(typeof(attr));
 };
 
 parser.onattribute = function(attr: { name: string; value: string; }) {
@@ -40,4 +42,3 @@ import fs = require("fs");
 fs.createReadStream("file.xml")
   .pipe(saxStream)
   .pipe(fs.createWriteStream("file-copy.xml"));
-

sax/sax.d.ts

@@ -16,17 +16,39 @@ declare module "sax" {
         position?: boolean;
     }
 
-    export interface Tag {
-        name: string;
-        attributes: { [key: string]: string };
-
-        // Available if opt.xmlns
-        ns?: { [key: string]: string };
-        prefix?: string;
-        local?: string;
-        uri?: string;
+    export interface QualifiedName {
+      name: string;
+      prefix: string;
+      local: string;
+      uri: string;
     }
 
+    export interface Attribute extends QualifiedName {
+      value: string;
+    }
+
+    interface BaseTag {
+      name: string;
+      isSelfClosing: boolean;
+    }
+
+    export interface QualifiedTag extends QualifiedName, BaseTag {
+        ns: { [key: string]: string };
+        attributes: { [key: string]: Attribute };
+    }
+
+    export interface Tag extends BaseTag {
+      attributes: { [key: string]: string };
+    }
+
+    // export interface Tag extends BaseTag {
+    //   // If opt.xmlns available
+    //     ns?: { [key: string]: string };
+    //     // If opt.xmlns available, the attributes map value is an object type
+    //     attributes: { [key: string]: string | Attribute };
+    //     isSelfClosing: boolean;
+    // }
+
     export function parser(strict: boolean, opt: SAXOptions): SAXParser;
     export class SAXParser {
         constructor(strict: boolean, opt: SAXOptions);
@@ -54,7 +76,7 @@ declare module "sax" {
         ontext(t: string): void;
         ondoctype(doctype: string): void;
         onprocessinginstruction(node: { name: string; body: string }): void;
-        onopentag(tag: Tag): void;
+        onopentag(tag: Tag | QualifiedTag): void;
         onclosetag(tagName: string): void;
         onattribute(attr: { name: string; value: string }): void;
         oncomment(comment: string): void;
@@ -75,4 +97,3 @@ declare module "sax" {
         private _parser: SAXParser;
     }
 }
-