Forward slashes not matching in regexp query

Elastic Stack Elasticsearch
1

I've created a mapping and regexp query to search urls but these are failing when I add a forward slash to the regex query

"mappings":{
"document":{
"properties":{
"url":{
"type":"text",
"analyzer":"keyword"
}
}
}
}

Urls:
www.test.com/section1/page1
www.test.com/section1/page2
www.test.com/section1/

"query": {
"regexp": {
"content": {
"value": "www.test.com/.*"
}
}
}

I would expect all 3 results to be returned for the above urls that are indexed but I get no results returned.

searching without the / returns the correct results
"query": {
"regexp": {
"content": {
"value": "www.test.com.*"
}
}
}

Any help would be appreciated.

Thanks,
Simon

2

I believe you need to escape the dot and forward slash characters where they represent characters and not classes or delimiters. Your regular expression should be: www\.test\.com\/.* Refer to this page for more information regarding regular expressions in Elasticsearch.

3

I've tried it with these too but still no luck (double backslashes used as it was complaining about single escaping)

www\\.test\\.com\\/.* 
www\\.test\\.com/.*
4

Comparing your query to the example queries here, it appears to expect a field name in the position that you have denoted as "content". Does the regular expression match when you replace it with "url"?

1 Like
5

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.