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https://issues.apache.org/jira/browse/LUCENE-1528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12667538#action_12667538
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Michael Busch commented on LUCENE-1528:
---------------------------------------
Looks good, Luis!
I was just wondering if you can do something like the following to avoid
defining the whitespace chars in two places:
{noformat}
| <#_WHITESPACE: ( " " | "\t" | "\n" | "\r") >
| <#_TERM_START_CHAR: ( ~( <_WHITESPACE> | [ "+", "-", "!", "(", ")", ":", "^",
"[", "]", "\"", "{", "}", "~", "*", "?", "\\" ])
| <_ESCAPED_CHAR> ) >
{noformat}
This does not compile... is there another way to achieve this in javacc?
If not, it's not a big deal and I can commit this patch as is.
> Add support for Ideographic Space to the queryparser - also know as fullwith
> space and wide-space
> -------------------------------------------------------------------------------------------------
>
> Key: LUCENE-1528
> URL: https://issues.apache.org/jira/browse/LUCENE-1528
> Project: Lucene - Java
> Issue Type: Improvement
> Components: QueryParser
> Affects Versions: 2.4.1
> Reporter: Luis Alves
> Assignee: Michael Busch
> Priority: Minor
> Fix For: 2.4.1
>
> Attachments: lucene_wide_space_v1_src.patch
>
> Original Estimate: 4h
> Remaining Estimate: 4h
>
> The Ideographic Space is a space character that is as wide as a normal CJK
> character cell.
> It is also known as wide-space or fullwith space.This type of space is used
> in CJK languages.
> This patch adds support for the wide space, making the queryparser component
> more friendly
> to queries that contain CJK text.
> Reference:
> 'http://en.wikipedia.org/wiki/Space_(punctuation)' - see Table of spaces,
> char U+3000.
> I also added a new testcase that fails before the patch.
> After the patch is applied all junits pass.
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