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How to get position of parsed token in input grammar [message #804186]

Wed, 22 February 2012 09:52

FJ Stöver

Messages: 25
Registered: July 2011
Location: Aachen, Germany

Junior Member

After successful parsing I get the IParseResult object; then I would like to get the start index of a parsed token in the original input stream. (I have to output the string in front of my token). Is that possible?

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Re: How to get position of parsed token in input grammar [message #804215 is a reply to message #804186]

Wed, 22 February 2012 10:17

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Hi Franz,

please use NodeModelUtils to obtain the node for a given semantic
element (or fetch the node from the parseresult directly) and use
#getOffset or #getTotalOffset depending on your usecase. The Javadoc
should be clear but if there are still questions left, feel free to ask.

Regards,
Sebastian
--
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Am 22.02.12 10:52, schrieb Franz-Josef t:
> After successful parsing I get the IParseResult object; then I would
> like to get the start index of a parsed token in the original input
> stream. (I have to output the string in front of my token). Is that
> possible?

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