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Trim characters option added and configurable #110

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Trim characters option added and configurable #110

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f1fe868
trim_characters option added in the normalize_keywords functionality
Loschcode Oct 10, 2017
80faf58
binding pry removal after tests
Loschcode Oct 10, 2017
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6 changes: 6 additions & 0 deletions lib/mongoid_search.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,12 @@ module Mongoid::Search
mattr_accessor :stem_proc
@@stem_proc = Proc.new { |word| word.stem }

# before the text is altered we can trim some characters
# it allows us to avoid replacing punctuations such as '-' to ' '
# which would not be beneficial in cases like date matching (`2017-10-08`)
mattr_accessor :trim_characters
@@trim_characters = []

## Words to ignore
mattr_accessor :ignore_list
@@ignore_list = []
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3 changes: 2 additions & 1 deletion lib/mongoid_search/util.rb
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Expand Up @@ -34,13 +34,15 @@ def self.normalize_keywords(text)
ignore_list = Mongoid::Search.ignore_list
stem_keywords = Mongoid::Search.stem_keywords
stem_proc = Mongoid::Search.stem_proc
trim_characters = Mongoid::Search.trim_characters

return [] if text.blank?
text = text.to_s.
mb_chars.
normalize(:kd).
downcase.
to_s.
gsub(/[#{trim_characters.join("")}]/, '').
gsub(/[._:;'"`,?|+={}()!@#%^&*<>~\$\-\\\/\[\]]/, ' '). # strip punctuation
gsub(/[^\s\p{Alnum}]/,''). # strip accents
gsub(/[#{ligatures.keys.join("")}]/) {|c| ligatures[c]}.
Expand All @@ -50,5 +52,4 @@ def self.normalize_keywords(text)
text = text.map(&stem_proc) if stem_keywords
text
end

end