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Zunon/minishell

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minishell

Tokens:

Variables - /\$[A-z_?]\w*/

Words - Anything that isn't any of the other tokens

Whitespace - /\s+/

Redirection - /(<<?)|(>>?)/

Pipe - /\|/

Single Quote - /'/

Double Quote - /"/

Grammar:

<PIPELINE> 	::=	<SIMPLE-COMMAND>
			|	<SIMPLE-COMMAND> '|' <PIPELINE>
			|   ε

<SIMPLE-COMMAND> ::=  <SIMPLE-COMMAND-ELEMENT>
                   |  <SIMPLE-COMMAND-ELEMENT> <SIMPLE-COMMAND>

<SIMPLE-COMMAND-ELEMENT> ::= <WORD>
                          |  <REDIRECTION-LIST>

<REDIRECTION>   ::= <DIRECTION> <WORD>

<REDIRECTION-LIST> ::= <REDIRECTION>
                    | <REDIRECTION> <REDIRECTION-LIST>

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