Problem with escape sequence when working with elasticsearch

rajagopalanr has asked for the wisdom of the Perl Monks concerning the following question:

I am writing a Perl script to search elasticsearch index. My text contains special characters \ and :. i try to filter them with \ and then search with the formatted string. But Perl again escapes them with one \ and post it them to elasticsearch. for eg if the text is C_:\_20Label_ and i escape them in code as C_\:\\_20Label, perl escapes again as C_\\:\\\\_20Label_. How to fix this issue.

Comment on Problem with escape sequence when working with elasticsearch

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Re: Problem with escape sequence when working with elasticsearch by Corion (Patriarch) on Jan 30, 2018 at 07:48 UTC
Where in your code does Perl escape this? What module are you using to talk to Elasticsearch? If you are inspecting your data via Data::Dumper, that one will add an additional layer of escaping as it outputs data as Perl syntax. Please show us a short, self-contained example that shows where Perl is doing additional escaping when sending data to Elasticsearch. In my usage of Search::ElasticSearch I had no need to escape anything. If you want index a cleaned up version of your text, maybe you want to use the functions of Elasticsearch to clean up your text in the index but keep the document as is?	[reply]

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Re: Problem with escape sequence when working with elasticsearch
by Corion (Patriarch) on Jan 30, 2018 at 07:48 UTC

Where in your code does Perl escape this? What module are you using to talk to Elasticsearch?

If you are inspecting your data via Data::Dumper, that one will add an additional layer of escaping as it outputs data as Perl syntax.

Please show us a short, self-contained example that shows where Perl is doing additional escaping when sending data to Elasticsearch.

In my usage of Search::ElasticSearch I had no need to escape anything. If you want index a cleaned up version of your text, maybe you want to use the functions of Elasticsearch to clean up your text in the index but keep the document as is?

[reply]