Search

A library for searching lists of strings or of data with a function f: Datum -> String.

For example, running

Search.withQueryString 
   identity 
   Search.NotCaseSensitive 
   "abc -xyz | pqr"

on the list

[ "abc def", "def xyz", "xyz abc pqr" ]

returns the list

[ "abc def", "xyz abc pqr" ]

The query string abc -xyz | pqr is of the form P | Q. It will match anything that matches P or Q. The term P is form word1 -word2 It will match anything that contains word1 but not word2. Similarly word1 word2 matches anything that contains word1 and word2.

Non-string data

Suppose that you want to query data of type List Datum. You can do this if you have function like digest : Datum -> String. For example, if

type alias Datum = 
  {   title: String
    , tags : List String
    , ... other stuff ... 
   }          

Then digest datum = String.join " " title::tags does the job — you can search using

Search.withQueryString 
   digest 
   Search.NotCaseSensitive 
   "abc -xyz | pqr"