Fix replacement encoding mode

Issue: mathiasbynens/windows-1252#8

README.md

@@ -34,7 +34,7 @@ This function takes a plain text string (the `input` parameter) and encodes it a
 const encodedData = iso885914.encode(text);
 ```
 
-The optional `options` object and its `mode` property can be used to set the error mode. The two available error modes are `'fatal'` (the default) or `'replacement'`. (Note: This differs from [the spec](https://encoding.spec.whatwg.org/#error-mode), which recognizes `'fatal`' and `'html'` modes for encoders. The reason behind this difference is that the spec algorithm is aimed at producing HTML, whereas this library encodes into an environment-agnostic `Uint16Array` of bytes.)
+The optional `options` object and its `mode` property can be used to set the error mode. The two available error modes are `'fatal'` (the default) or `'replacement'`. (Note: This differs from [the spec](https://encoding.spec.whatwg.org/#error-mode), which recognizes “fatal” and HTML” modes for encoders. The reason behind this difference is that the spec algorithm is aimed at producing HTML, whereas this library encodes into an environment-agnostic `Uint16Array` of bytes.)
 
 ```js
 const encodedData = iso885914.encode(text, {

iso-8859-14.mjs

@@ -333,9 +333,8 @@ export const encode = (input, options) => {
 	if (options && options.mode) {
 		mode = options.mode.toLowerCase();
 	}
-	// “An error mode […] is either `fatal` (default) or `HTML` for an
-	// encoder.”
-	if (mode !== 'fatal' && mode !== 'html') {
+	// Support `fatal` (default) and `replacement` error modes.
+	if (mode !== 'fatal' && mode !== 'replacement') {
 		mode = 'fatal';
 	}
 	const length = input.length;

scripts/transform-data.js

@@ -58,15 +58,15 @@ fs.writeFileSync(
 // tests/tests.src.js → tests/tests.js
 const TEST_TEMPLATE = fs.readFileSync('./tests/tests.src.mjs', 'utf8');
 const createTest = template(TEST_TEMPLATE, {
-	interpolate: /<%=([\s\S]+?)%>/g,
+	interpolate: /<\%=([\s\S]+?)%\>/g,
 });
 const testCode = createTest(require('./export-data.js'));
 fs.writeFileSync('./tests/tests.mjs', testCode);
 
 // src/iso-8859-14.src.mjs -> iso-8859-14.mjs
 const LIB_TEMPLATE = fs.readFileSync('./src/iso-8859-14.src.mjs', 'utf8');
 const createLib = template(LIB_TEMPLATE, {
-	interpolate: /<%=([\s\S]+?)%>/g,
+	interpolate: /<\%=([\s\S]+?)%\>/g,
 });
 const libCode = createLib(require('./export-data.js'));
 fs.writeFileSync('./iso-8859-14.mjs', libCode);

src/iso-8859-14.src.mjs

@@ -75,9 +75,8 @@ export const encode = (input, options) => {
 	if (options && options.mode) {
 		mode = options.mode.toLowerCase();
 	}
-	// “An error mode […] is either `fatal` (default) or `HTML` for an
-	// encoder.”
-	if (mode !== 'fatal' && mode !== 'html') {
+	// Support `fatal` (default) and `replacement` error modes.
+	if (mode !== 'fatal' && mode !== 'replacement') {
 		mode = 'fatal';
 	}
 	const length = input.length;

tests/tests.mjs

@@ -50,6 +50,11 @@ assert.throws(
 	Error,
 	'Mode names are case-insensitive'
 );
+assert.deepStrictEqual(
+	iso885914.encode('\uFFFF', { mode: 'replacement' }),
+	new Uint16Array([0xFFFD]),
+	'Encoding a code point that is invalid for this encoding results in U+FFFD in `replacement` mode'
+);
 
 console.log('Testing `iso885914.decode`…');
 assert.deepStrictEqual(

tests/tests.src.mjs

@@ -50,6 +50,11 @@ assert.throws(
 	Error,
 	'Mode names are case-insensitive'
 );
+assert.deepStrictEqual(
+	iso885914.encode('\uFFFF', { mode: 'replacement' }),
+	new Uint16Array([0xFFFD]),
+	'Encoding a code point that is invalid for this encoding results in U+FFFD in `replacement` mode'
+);
 
 console.log('Testing `iso885914.decode`…');
 assert.deepStrictEqual(