In this case "point' was the name of an attribute in the data - so not much
we could do about it.
--
Jody Garnett
On 30 March 2015 at 18:04, Jim Hughes <[email protected]> wrote:
> The EBNF does reference key words/reserved words. That list includes wkt
> keywords like POINT, POLYGON and predicates like INTERSECTS and DURING.
>
> A property name appears to get worked out as 'character string literal',
> and would need to be quoted. I think that would do the trick. Since the
> literal *point* is written sans qutoes, I'd guess that the preference for
> keyword identification is too high? If that's the case, something in the
> parser may need a little nudge.
>
> In general, I'd suggest that reserved words in a query language make poor
> attribute names.;)
>
> Cheers,
>
> Jim
>
>
> On 03/30/2015 07:55 PM, Jody Garnett wrote:
>
> So what is needed here ... list of reserved words that must be escaped
> when encoded?
>
> I think the square brackets are just to introduce precedence, isolating
> point won't help since it will start trying to treat it as geometry.
>
> For reference the grammar is here:
> http://old.geotools.org/ECQL-Parser-Design_110493908.html
>
> --
> Jody Garnett
>
> On 30 March 2015 at 16:46, Kevin Smith <[email protected]> wrote:
>
>> I've noticed that ECQL.toCQL doesn't escape WKT keywords. So
>> <PropertyName>point</PropertyName> is encoded to just point rather than
>> "point" or [point]. When this is parsed in turn, it is interpreted as a
>> WKT literal, although it's lacking the rest of the expression and so fails.
>>
>> The bracket notation also fails to resolve this when parsing, it still
>> interprets [point] as being the start of a WKT literal rather than an
>> attribute name. When double quoted ("point") it escapes against the WKT
>> interpretation as expected.
>>
>> I may be missing something. When I looked up the formal CQL spec hidden
>> in the CSW spec, i couldn't find any indication of either bracket or double
>> quote escaping of property names. Were these added for ECQL?
>>
>> --
>>
>> Kevin Smith
>>
>> Software Engineer | Boundless <http://boundlessgeo.com/>
>>
>> [email protected]
>>
>> +1-778-785-7459
>>
>> @boundlessgeo <http://twitter.com/boundlessgeo/>
>>
>>
>> <http://twitter.com/boundlessgeo/>
>>
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>> <http://boundlessgeo.com/>
>>
>>
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