[xsl] XPath Grammar

I need help about XPath grammar.
In W3C specification a literal is stated as the
following:

[29]    Literal    ::=    '"' [^"]* '"'  
   			| "'" [^']* "'" 


What does the production mean?
I think it can be translated as the following:
			"\"" (~["\""])* "\""
		|	"'"  (~["'"] )* "'"  

but what [^"]* exactly mean?


Thanks in advance.

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