1

I'm working on Xtext project and I want to have a grammar that would allow me to: 1. String quotes from strings, ex: "string" -> string 2. Allow to consider a string chunks separated with spaces as one string.

I would like to have a following concrete syntax:

fieldSet setname[

question what do you prefer to drink? [
  cola,
  coda water,
  apple juice
  ]
]

As you can see 'what do you prefer to drink' has to be considered as one string without quotes. At the moment I made a custom terminal as well as converter. But it does not work as I want.

terminal QSTRING returns ecore::EString: //custom terminal SurveyString
     ('a'..'z'|'A'..'Z')('a'..'z' | 'A'..'Z' | '_' | '?' | '!'| '@'| '#' | '%' | '^' |     '&' | '('|')'| '0'..'9'|' ')*;



FieldSet returns FieldSet:
'fieldSet' name=QSTRING
'['
question+=Question (',' question+=Question)*
']';

Question returns Question:
'question'
name=QSTRING
'[' has+=AnswerOption (',' has+=AnswerOption)*
(other?=('other'))?
']';

AnswerOption returns AnswerOption:
name=QSTRING;
user3554587
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1 Answers1

0

I guess your grammar inherits from common.Terminals? That grammar hides whitespace by default.

You can put hidden() behind your terminal rule's name to make sure that whitespace is not ignored inside it.

Stefan Oehme
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