Replace with nbsp when necessary

Signed-off-by: Tsaqif <tsaiinkwa@yahoo.com>

__tests__/ExpensiMark-HTML-test.js

@@ -79,7 +79,7 @@ test('Test italic markdown replacement', () => {
     const italicTestStartString = 'Note that _this is correctly italicized_\n' + 'Note that `_this is correctly not italicized_` and _following inline contents are italicized_';
 
     const italicTestReplacedString =
-        'Note that <em>this is correctly italicized</em><br />' + 'Note that <code>_this&nbsp;is&nbsp;correctly&nbsp;not&nbsp;italicized_</code> and <em>following inline contents are italicized</em>';
+        'Note that <em>this is correctly italicized</em><br />' + 'Note that <code>_this is correctly not italicized_</code> and <em>following inline contents are italicized</em>';
 
     expect(parser.replace(italicTestStartString)).toBe(italicTestReplacedString);
 });
@@ -402,7 +402,7 @@ test('Test critical markdown style links', () => {
         '<a href="https://necolas.github.io/react-native-web/docs/?path=/docs/components-pressable--disabled" target="_blank" rel="noreferrer noopener">second no http://</a> ' +
         '<a href="https://github.com/Expensify/Expensify.cash/issues/123#:~:text=Please%20work/Expensify.cash" target="_blank" rel="noreferrer noopener">third</a> ' +
         '<a href="https://github.com/Expensify/Expensify.cash/issues/123#:~:text=Please%20work/Expensify.cash" target="_blank" rel="noreferrer noopener">third no https://</a> ' +
-        '<a href="https://google.com" target="_blank" rel="noreferrer noopener">link <code>[inside&nbsp;another&nbsp;link](https://google.com)</code></a> ' +
+        '<a href="https://google.com" target="_blank" rel="noreferrer noopener">link <code>[inside another link](https://google.com)</code></a> ' +
         '<a href="https://google.com" target="_blank" rel="noreferrer noopener">link with an @ in it</a> ' +
         '<a href="https://google.com" target="_blank" rel="noreferrer noopener">link with [brackets] inside of it</a> ' +
         '<a href="https://google.com" target="_blank" rel="noreferrer noopener">link with smart quotes ‘’“”</a> ' +
@@ -499,7 +499,7 @@ test('Test inline code with multiple backtick symbols as content', () => {
 
 test('Test inline code blocks with ExpensiMark syntax inside', () => {
     const inlineCodeStartString = '`This is how you can write ~strikethrough~, *bold*, and _italics_`';
-    expect(parser.replace(inlineCodeStartString)).toBe('<code>This&nbsp;is&nbsp;how&nbsp;you&nbsp;can&nbsp;write&nbsp;~strikethrough~,&nbsp;*bold*,&nbsp;and&nbsp;_italics_</code>');
+    expect(parser.replace(inlineCodeStartString)).toBe('<code>This is how you can write ~strikethrough~, *bold*, and _italics_</code>');
 });
 
 test('Test inline code blocks inside ExpensiMark', () => {
@@ -1260,7 +1260,7 @@ test('Test for backticks with only space characters as content', () => {
 // Code-fence with spaces as content
 test('Test for inline code block with triple backtick with spaces as content', () => {
     const testString = '```   ```';
-    const resultString = '<code>&#x60;&#x60;&nbsp;&nbsp;&nbsp;&#x60;&#x60;</code>';
+    const resultString = '<code>&#x60;&#x60;   &#x60;&#x60;</code>';
     expect(parser.replace(testString)).toBe(resultString);
 });
 
@@ -1417,7 +1417,7 @@ test('Test for user mention with text with codefence style', () => {
 
 test('Test for user mention with text with inlineCodeBlock style', () => {
     const testString = '`hi @username@expensify.com`';
-    const resultString = '<code>hi&nbsp;@username@expensify.com</code>';
+    const resultString = '<code>hi @username@expensify.com</code>';
     expect(parser.replace(testString)).toBe(resultString);
 });
 

lib/ExpensiMark.ts

@@ -194,7 +194,8 @@ export default class ExpensiMark {
                 // must be present inside the backticks.
                 regex: /(\B|_|)&#x60;((?:&#x60;)*(?!&#x60;).*?[\S| |\u00A0]+?.*?(?<!&#x60;)(?:&#x60;)*)&#x60;(\B|_|)(?!&#x60;|[^<]*<\/pre>|[^<]*<\/video>)/gm,
                 replacement: (_extras, _match, g1, g2, g3) => {
-                    return `${g1}<code>${g2.replaceAll(' ', '&nbsp;')}</code>${g3}`;
+                    const g2Value = g2.trim() === '' ? g2.replaceAll(' ', '&nbsp;') : g2;
+                    return `${g1}<code>${g2Value}</code>${g3}`;
                 },
             },