queryparsersyntax.html escaping section needs beefed up [LUCENE-1000]

[asfimport]

the query syntax documentation is currently lacking several key pieces of info:

1. that unicode style escapes are valid
2. that any character can be escaped with a backslash, not just special chars.

..we should probably beef up the "Escaping Special Characters" section

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Migrated from LUCENE-1000 by Chris M. Hostetter (@hossman), 1 vote, updated May 09 2016
Linked issues:

• queryparser whitespace escaping and documentation? [LUCENE-1122] #2199

[asfimport]

Michael Busch (migrated from JIRA)

Luis & Adriano: as the queryparser "experts" maybe you could create a patch for this issue and for #2199? ;)

[asfimport]

Steven Rowe (@sarowe) (migrated from JIRA)

Bulk move 4.4 issues to 4.5 and 5.0

[asfimport]

Uwe Schindler (@uschindler) (migrated from JIRA)

Move issue to Lucene 4.9.