test_regexp_edge_cases.cjs
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test_regexp_edge_cases.cjs
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	// Test edge cases for RegExp

	// Empty pattern
	const re1 = new RegExp('');
	console.log('Empty pattern source:', re1.source);

	// Empty string replacement
	const str1 = 'hello';
	const result1 = str1.replace(new RegExp('l', 'g'), '');
	console.log('Remove chars:', result1);

	// No match
	const str2 = 'hello world';
	const result2 = str2.replace(new RegExp('xyz'), 'foo');
	console.log('No match:', result2);

	// Special characters that need escaping
	const str3 = 'Price: $10.99';
	const re3 = new RegExp('[0-9.]+');
	const result3 = str3.replace(re3, '20.00');
	console.log('Price replace:', result3);

	// Whitespace replacement
	const str4 = 'hello world';
	const re4 = new RegExp(' +', 'g');
	const result4 = str4.replace(re4, ' ');
	console.log('Normalize spaces:', result4);

	// Replace at start
	const str5 = 'hello world';
	const re5 = new RegExp('^hello');
	const result5 = str5.replace(re5, 'hi');
	console.log('Replace at start:', result5);

	// Replace at end
	const str6 = 'hello world';
	const re6 = new RegExp('world$');
	const result6 = str6.replace(re6, 'there');
	console.log('Replace at end:', result6);

	console.log('All edge case tests passed!');