Parse error when contains "("

[pengzhiwei2018]

Describe the bug
when the term query contains "(" or ")" the query parser will fail, like:
content :y+(y+25)

How to support this case with "(" in the match string.

[pengzhiwei2018]

@trinity-1686a can you help for this issue? It doesn't work even though I have done the escaping processing for ‘（’

[trinity-1686a]

is the space after content on purpose? If so it should be escaped content\ :y+\(y+25\), but i would expect it's likely unwanted, in which case it should just be removed content:y+\(y+25\) (or you can use the single quote syntax to not have to handle as many escape sequences: content:'y+(y+25)')

beware depending on the tokenizer you use, queries with non-word chars might not yield the results you expect

[pengzhiwei2018]

@trinity-1686a thanks to you help. I test content:'y+(y+25)' works, but content:y+\(y+25\) still throw parse exception.

[trinity-1686a]

what version of tantivy are you running? By bissecting, it seems this if fixed in 455156f , which is present in the v0.24 series

[pengzhiwei2018]

I work in v0.22, I will have a try for v0.24.

[pengzhiwei2018]

Hi @trinity-1686a , I found another performance issue about the special char. The query content:'()' or content:'{}' takes 100ms in my test case while query content:'abc' which only take 50us. There are about 2000x performace gap on this.