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String rule to support double quotes inside String [message #1795301]

Thu, 20 September 2018 02:45

Eclipse User

Hello,

I am trying to support double quotes inside string.
STRING terminal rule is not allowing double quotes inside string.
e.g

"THERE SHOULD BE 55 SPACES BETWEEN ""B"" AND ""C""."

Is it possible to achieve this?
Need some suggestion is this regard.

Thanks and regards,
Virag Purnam

Re: String rule to support double quotes inside String [message #1795306 is a reply to message #1795301]

Thu, 20 September 2018 04:37

Eclipse User

how does your string literal look like? did you simply adopt the existing one in the straight forward way?

@Override
terminal STRING:
'"' ( '""' | !('"') )* '"';

p.s.: dont forget to adapt the value converter

Re: String rule to support double quotes inside String [message #1795307 is a reply to message #1795306]

Thu, 20 September 2018 04:51

Eclipse User

Thanks for the reply Mr. Christian Dietrich,

@Override 
terminal STRING 	: 
			('"'!('"')*'"' |
		     "'"!("'")*"'"		
			) 
;

Thanks for the hint. I will try with the rule, which you have proposed.

Re: String rule to support double quotes inside String [message #1795375 is a reply to message #1795307]

Fri, 21 September 2018 02:00

Eclipse User

Thanks.
This works for me.

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