[jira] Commented: (LUCENE-573) Escaped quotes inside a phrase cause a ParseException

2006-11-17 Thread Yonik Seeley (JIRA)
[ 
http://issues.apache.org/jira/browse/LUCENE-573?page=comments#action_12450886 ] 

Yonik Seeley commented on LUCENE-573:
-

Thanks Michael, I haven't had a chance to look at the code yet, but I agree 
with your description of all the changes.  So unless concerns arise, I'll 
commit this after review.

 Escaped quotes inside a phrase cause a ParseException
 -

 Key: LUCENE-573
 URL: http://issues.apache.org/jira/browse/LUCENE-573
 Project: Lucene - Java
  Issue Type: Bug
  Components: QueryParser
Affects Versions: 1.9
 Environment: Debian Sarge, Sun JDK 1.4.2
Reporter: Tomislav Gountchev
 Assigned To: Michael Busch
Priority: Minor
 Attachments: LUCENE-573_new.patch


 QueryParser cannot handle escaped quotes when inside a phrase. Escaped quotes 
 not in a phrase are not a problem. This can be added to 
 TestQueryParser.testEscaped() to demonstrate the issue - the second assert 
 throws an exception:
 assertQueryEquals(a \\\b c\\\ d, a, a \b c\ d);
 assertQueryEquals(\a \\\b c\\\ d\, a, \a \b c\ d\);
 See also this thread:
 http://www.nabble.com/ParseException-with-escaped-quotes-in-a-phrase-t1647115.html

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: 
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira



-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]



[jira] Commented: (LUCENE-573) Escaped quotes inside a phrase cause a ParseException

2006-11-07 Thread Michael Busch (JIRA)
[ 
http://issues.apache.org/jira/browse/LUCENE-573?page=comments#action_12447990 ] 

Michael Busch commented on LUCENE-573:
--

Sorry, it took me a while to take care of this patch.

You are right, my patch only prevents the ParseException to be thrown. However, 
it is still not possible to search for a phrase query that contains quotes.

I think the simple solution is to call discardEscapeChar(String) for the phrase 
string. Then *all* escaped characters within a phrase become unescaped.

Now the question is again (Yonik raised it already): Do we want this behavior 
or do we rather want to maintain backward compatibility for already existing 
phrase queries that include a backslash? If we prefer compatibility over 
consistency then one solution would be to add a new method 
discardEscapeChar(String, char[]) that only unescapes certain characters, in 
this case  and \.

If we can make a decision here I'm happy to provide a new patch.

 Escaped quotes inside a phrase cause a ParseException
 -

 Key: LUCENE-573
 URL: http://issues.apache.org/jira/browse/LUCENE-573
 Project: Lucene - Java
  Issue Type: Bug
  Components: QueryParser
Affects Versions: 1.9
 Environment: Debian Sarge, Sun JDK 1.4.2
Reporter: Tomislav Gountchev
Priority: Minor
 Attachments: escaped_quotes_inside_phrases.patch


 QueryParser cannot handle escaped quotes when inside a phrase. Escaped quotes 
 not in a phrase are not a problem. This can be added to 
 TestQueryParser.testEscaped() to demonstrate the issue - the second assert 
 throws an exception:
 assertQueryEquals(a \\\b c\\\ d, a, a \b c\ d);
 assertQueryEquals(\a \\\b c\\\ d\, a, \a \b c\ d\);
 See also this thread:
 http://www.nabble.com/ParseException-with-escaped-quotes-in-a-phrase-t1647115.html

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: 
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira



-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]



[jira] Commented: (LUCENE-573) Escaped quotes inside a phrase cause a ParseException

2006-11-07 Thread Yonik Seeley (JIRA)
[ 
http://issues.apache.org/jira/browse/LUCENE-573?page=comments#action_12448007 ] 

Yonik Seeley commented on LUCENE-573:
-

The number of people searching for '\' must be minuscule (to non-existent), so 
I'm personally OK with doing what makes the most sense.

In general, I think it's more user friendly and less surprising to allow a 
backslash escape of something that doesn't need it (while removing the 
backslash).

So 
\\ = \
\ = 
\+ = +  // not a necessary escape if in a quoted string, but consistent

Then there are the control chars, \r\n\t, etc.

At some point we might want to allow unicode escapes, and keeping backslash as 
a general escape char will facilitate this.

 Escaped quotes inside a phrase cause a ParseException
 -

 Key: LUCENE-573
 URL: http://issues.apache.org/jira/browse/LUCENE-573
 Project: Lucene - Java
  Issue Type: Bug
  Components: QueryParser
Affects Versions: 1.9
 Environment: Debian Sarge, Sun JDK 1.4.2
Reporter: Tomislav Gountchev
 Assigned To: Michael Busch
Priority: Minor
 Attachments: escaped_quotes_inside_phrases.patch


 QueryParser cannot handle escaped quotes when inside a phrase. Escaped quotes 
 not in a phrase are not a problem. This can be added to 
 TestQueryParser.testEscaped() to demonstrate the issue - the second assert 
 throws an exception:
 assertQueryEquals(a \\\b c\\\ d, a, a \b c\ d);
 assertQueryEquals(\a \\\b c\\\ d\, a, \a \b c\ d\);
 See also this thread:
 http://www.nabble.com/ParseException-with-escaped-quotes-in-a-phrase-t1647115.html

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: 
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira



-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]



[jira] Commented: (LUCENE-573) Escaped quotes inside a phrase cause a ParseException

2006-10-18 Thread Michael Krkoska (JIRA)
[ 
http://issues.apache.org/jira/browse/LUCENE-573?page=comments#action_12443214 ] 

Michael Krkoska commented on LUCENE-573:


I just experienced this bug in my search. The patch works for me, though I 
found it rather cumbersome to build lucene including javacc. 

Why is the priority of this bug low? What do we have to do to include tha patch 
in the release?

 Escaped quotes inside a phrase cause a ParseException
 -

 Key: LUCENE-573
 URL: http://issues.apache.org/jira/browse/LUCENE-573
 Project: Lucene - Java
  Issue Type: Bug
  Components: QueryParser
Affects Versions: 1.9
 Environment: Debian Sarge, Sun JDK 1.4.2
Reporter: Tomislav Gountchev
Priority: Minor
 Attachments: escaped_quotes_inside_phrases.patch


 QueryParser cannot handle escaped quotes when inside a phrase. Escaped quotes 
 not in a phrase are not a problem. This can be added to 
 TestQueryParser.testEscaped() to demonstrate the issue - the second assert 
 throws an exception:
 assertQueryEquals(a \\\b c\\\ d, a, a \b c\ d);
 assertQueryEquals(\a \\\b c\\\ d\, a, \a \b c\ d\);
 See also this thread:
 http://www.nabble.com/ParseException-with-escaped-quotes-in-a-phrase-t1647115.html

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: 
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira



-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]



[jira] Commented: (LUCENE-573) Escaped quotes inside a phrase cause a ParseException

2006-10-18 Thread Yonik Seeley (JIRA)
[ 
http://issues.apache.org/jira/browse/LUCENE-573?page=comments#action_12443287 ] 

Yonik Seeley commented on LUCENE-573:
-

 What do we have to do to include tha patch in the release?

IMO, the minimal amount that needs to be done is 
 1) map \ to 
 2) map \\ to \

 Escaped quotes inside a phrase cause a ParseException
 -

 Key: LUCENE-573
 URL: http://issues.apache.org/jira/browse/LUCENE-573
 Project: Lucene - Java
  Issue Type: Bug
  Components: QueryParser
Affects Versions: 1.9
 Environment: Debian Sarge, Sun JDK 1.4.2
Reporter: Tomislav Gountchev
Priority: Minor
 Attachments: escaped_quotes_inside_phrases.patch


 QueryParser cannot handle escaped quotes when inside a phrase. Escaped quotes 
 not in a phrase are not a problem. This can be added to 
 TestQueryParser.testEscaped() to demonstrate the issue - the second assert 
 throws an exception:
 assertQueryEquals(a \\\b c\\\ d, a, a \b c\ d);
 assertQueryEquals(\a \\\b c\\\ d\, a, \a \b c\ d\);
 See also this thread:
 http://www.nabble.com/ParseException-with-escaped-quotes-in-a-phrase-t1647115.html

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: 
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira



-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]



[jira] Commented: (LUCENE-573) Escaped quotes inside a phrase cause a ParseException

2006-08-20 Thread Hoss Man (JIRA)
[ 
http://issues.apache.org/jira/browse/LUCENE-573?page=comments#action_12429287 ] 

Hoss Man commented on LUCENE-573:
-

 You assume that the queryparser unescapes the quotes inside 
 the phrase, but the queryparser does not unescape *any*
 escaped characters inside a phrase. You can see that in (2),
 where the escaped + (plus) character does not become 
 unescaped.

...I'm not sure if this is a fair comaprison.  Query parser may not unescape 
things like the \+ in this example
 foo bar \+baz
...but i believe that is because there is no reason for it to do so, if what 
you intended was to match on the + character without a preceding s\ you could 
have just written...
 foo bar +baz
...ie: the plus is already escaped by the nature of being inside the  phrase 
bounding quotes

this same justification does not hold for the double-quote character however 
... there is no way to inlcude a  character inside of a phrase without 
escaping, so it seems like query parser should be unescaping it automatically 
for you.

correct?


 Escaped quotes inside a phrase cause a ParseException
 -

 Key: LUCENE-573
 URL: http://issues.apache.org/jira/browse/LUCENE-573
 Project: Lucene - Java
  Issue Type: Bug
  Components: QueryParser
Affects Versions: 1.9
 Environment: Debian Sarge, Sun JDK 1.4.2
Reporter: Tomislav Gountchev
Priority: Minor
 Attachments: escaped_quotes_inside_phrases.patch


 QueryParser cannot handle escaped quotes when inside a phrase. Escaped quotes 
 not in a phrase are not a problem. This can be added to 
 TestQueryParser.testEscaped() to demonstrate the issue - the second assert 
 throws an exception:
 assertQueryEquals(a \\\b c\\\ d, a, a \b c\ d);
 assertQueryEquals(\a \\\b c\\\ d\, a, \a \b c\ d\);
 See also this thread:
 http://www.nabble.com/ParseException-with-escaped-quotes-in-a-phrase-t1647115.html

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: 
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira



-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]