Regular Expressions 101

Pro

Negative Lookbehind(?<!^)

^start of line

Negative Lookbehind(?<!\t)

\ta tab character (ASCII 9)

\t+a tab character (ASCII 9), repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?<!^)(?<!\t)\t+

New

	BBHH	Balanço Patrimonial
			1.		ATIVO											Assets
				1.1		CIRCULANTE
				1.2		NÃO CIRCULANTE
			2.		PASSIVO											Liabilities and Equity
			3.		RECEITAS
			4.		CUSTOS E DESPESAS
				4.1		CUSTOS DE PRODUTOS VENDIDOS E SERVIÇOS
						4.1.1		CUSTOS DE PRODUTOS VENDIDOS
							4.1.1.1			CUSTOS DE PRODUTOS VENDIDOS