refactor: improve payload type for OSC (#954)

---------

Co-authored-by: Joel Wetzell <jwetzell@yahoo.com>
Co-authored-by: arc-alex <ac@omnivox.dk>

packages/utils/src/regex-utils/splitWhitespace.test.ts

@@ -0,0 +1,53 @@
+import { splitWhitespace } from './splitWhitespace';
+
+describe('test splitWhitespace() function', () => {
+  it('empty string', () => {
+    const test = '';
+    expect(splitWhitespace(test)).toStrictEqual(null);
+  });
+
+  it('just space', () => {
+    const test = ' ';
+    expect(splitWhitespace(test)).toStrictEqual(null);
+  });
+
+  it('1 item', () => {
+    const test = 'test';
+    expect(splitWhitespace(test)).toStrictEqual(['test']);
+  });
+
+  it('2 items', () => {
+    const test = 'test test';
+    expect(splitWhitespace(test)).toStrictEqual(['test', 'test']);
+  });
+
+  it('2 items and quoted string', () => {
+    const test = 'test test "more test"';
+    expect(splitWhitespace(test)).toStrictEqual(['test', 'test', '"more test"']);
+  });
+
+  it('2 sapces', () => {
+    const test = 'test  test  "more  test"';
+    expect(splitWhitespace(test)).toStrictEqual(['test', 'test', '"more  test"']);
+  });
+
+  it('quotes without spaces', () => {
+    const test = 'test test "moreTest"';
+    expect(splitWhitespace(test)).toStrictEqual(['test', 'test', '"moreTest"']);
+  });
+
+  it('escaped quotes', () => {
+    const test = 'test test "more \\" test"';
+    expect(splitWhitespace(test)).toStrictEqual(['test', 'test', '"more " test"']);
+  });
+
+  it('missing end quotes', () => {
+    const test = 'test test "more test';
+    expect(splitWhitespace(test)).toStrictEqual(['test', 'test', '"more test']);
+  });
+
+  it('missing start quotes', () => {
+    const test = 'test test more test"';
+    expect(splitWhitespace(test)).toStrictEqual(['test', 'test', 'more', 'test"']);
+  });
+});