refactor: drop the parser function, rename SAXParser

BREAKING CHANGE:

The ``parser`` function is removed. Just create a new instance with
``new``.

``SAXParser`` is now ``SaxesParser.`` So ``new
require("saxes").SaxesParser(...)``.

README.md

@@ -52,7 +52,7 @@ guest.
 
 ```javascript
 var saxes = require("./lib/saxes"),
-  parser = saxes.parser();
+  parser = new saxes.SaxesParser();
 
 parser.onerror = function (e) {
   // an error happened.

examples/example.js

@@ -6,7 +6,7 @@ const fs = require("fs");
 const path = require("path");
 const saxes = require("../lib/saxes");
 
-const parser = saxes.parser();
+const parser = new saxes.SaxesParser();
 
 function inspector(ev) {
   return function handler(data) {

lib/saxes.js

@@ -134,7 +134,7 @@ function isQuote(c) {
   return c === "\"" || c === "'";
 }
 
-class SAXParser {
+class SaxesParser {
   /**
    * @param {Object} opt The parser options.
    */
@@ -1684,7 +1684,4 @@ ${JSON.stringify(this.tagName)}.`);
   }
 }
 
-exports.parser = function parser(opt) {
-  return new SAXParser(opt);
-};
-exports.SAXParser = SAXParser;
+exports.SaxesParser = SaxesParser;

test/conformance.js

@@ -139,7 +139,7 @@ class SaxesDriver extends BaseDriver {
     return this.resourceLoader.loadFile(resolvedURI)
       .then((source) => {
         const errors = [];
-        const parser = saxes.parser({
+        const parser = new saxes.SaxesParser({
           xmlns: !test.forbidsNamespaces,
         });
         parser.onerror = (err) => {

test/index.js

@@ -9,7 +9,7 @@ const saxes = require("../lib/saxes");
 exports.test = function test(options) {
   const { xml, name, expect: expected, fn } = options;
   it(name, () => {
-    const parser = saxes.parser(options.opt);
+    const parser = new saxes.SaxesParser(options.opt);
     let expectedIx = 0;
     for (const ev of saxes.EVENTS) {
       // eslint-disable-next-line no-loop-func

test/not-string.js

@@ -4,7 +4,7 @@ const { expect } = require("chai");
 const saxes = require("../");
 
 it("parses a buffer", () => {
-  const parser = saxes.parser();
+  const parser = new saxes.SaxesParser();
   let seen = false;
   parser.onopentag = (node) => {
     expect(node).to.deep.equal({ name: "x", attributes: {}, isSelfClosing: false });

test/parser-position.js

@@ -6,7 +6,7 @@ const { test } = require(".");
 
 function testPosition(name, chunks, expectedEvents) {
   it(name, () => {
-    const parser = saxes.parser();
+    const parser = new saxes.SaxesParser();
     for (const expectation of expectedEvents) {
       parser[`on${expectation[0]}`] = function handler() {
         // eslint-disable-next-line guard-for-in

test/xml-declaration.js

@@ -157,7 +157,7 @@ describe("xml declaration", () => {
   });
 
   it("well-formed", () => {
-    const parser = saxes.parser();
+    const parser = new saxes.SaxesParser();
     let seen = false;
     parser.onopentagstart = () => {
       expect(parser.xmlDecl).to.deep.equal({