DatesFromString
Flexible solution for finding dates in text. After parsing text, the gem return flexible structure of dates, that allow getting a date by you own logic use distance for next date type and keywords between dates. Gem also support find a year in email and find a date in structure.
Installation
Add this line to your application's Gemfile:
gem 'dates_from_string'And then execute:
$ bundle
Or install it yourself as:
$ gem install dates_from_string
Usage
text = "1988-1990 and 2000 and one more date 04.04.2015" # parsing text
key_words = ['between','-'] # you can define special separator
options = {
date_format: :usa, # year,day,month by default year,month,day
ordinals: ['nd', 'st', 'th'] # a string list that might accompany a day, default none
}
dates_from_string = DatesFromString.new(key_words, options) # define DatesFromString object
dates_from_string.get_structure(text) # parsing text
#=> returns
# [{:type=>:year, :value=>"1988", :distance=>0, :key_words=>["-"]},
# {:type=>:year, :value=>"1990", :distance=>2, :key_words=>[]},
# {:type=>:year, :value=>"2000", :distance=>5, :key_words=>[]},
# {:type=>:year, :value=>"2015", :distance=>0, :key_words=>[]},
# {:type=>:day, :value=>"04", :distance=>0, :key_words=>[]},
# {:type=>:month, :value=>"04", :distance=>0, :key_words=>[]}]
:type # type of date year, month or day
:value # value of date
:distance # distance for next date type
:key_words # special words, symbols that separate dates
# find date in structure
text = "забрать машину из ремонта 2015-02-02 23:00:10"
dates_from_string = DatesFromString.new
dates_from_string.find_date(text)
#=> return
# ["2015-02-02 23:00:10"]
# find year in email
date_from_string = DatesFromString.new()
input = '1test1988@gmail.com'
date_from_string.email_date(input)
#=> return
# "1988"Examples:
input = '1988 between 1990'
key_words = ['between']
dates_from_string = DatesFromString.new(key_words)
dates_from_string.get_structure(input)
#=> return
# [{:type=>:year, :value=>"1988", :distance=>2, :key_words=>["between"]},
# {:type=>:year, :value=>"1990", :distance=>0, :key_words=>[]}]
input = '2013/07/09 one date and he born in 1990'
dates_from_string.get_structure(input)
#=> return
# [{:type=>:year, :value=>"2013", :distance=>0, :key_words=>[]},
# {:type=>:month, :value=>"07", :distance=>0, :key_words=>[]},
# {:type=>:day, :value=>"09", :distance=>7, :key_words=>[]},
# {:type=>:year, :value=>"1990", :distance=>0, :key_words=>[]}]
input = '1990 1988 year 2013 bla bla bla 2015 a b c d i f g qwe 2016'
dates_from_string.get_structure(input)
#=> return
# [{:type=>:year, :value=>"1990", :distance=>1, :key_words=>[]},
# {:type=>:year, :value=>"1988", :distance=>2, :key_words=>[]},
# {:type=>:year, :value=>"2013", :distance=>4, :key_words=>[]},
# {:type=>:year, :value=>"2015", :distance=>9, :key_words=>[]},
# {:type=>:year, :value=>"2016", :distance=>0, :key_words=>[]}]
input = 'August 1961'
dates_from_string.get_structure(input)
#=> return
# [{:type=>:month, :value=>"08", :distance=>1, :key_words=>[]},
# {:type=>:year, :value=>"1961", :distance=>0, :key_words=>[]}]
input = '10 April 1948'
dates_from_string.get_structure(input)
#=> return
# [{:type=>:day, :value=>"10", :distance=>1, :key_words=>[]},
# {:type=>:month, :value=>"04", :distance=>1, :key_words=>[]},
# {:type=>:year, :value=>"1948", :distance=>0, :key_words=>[]}]
#
input = 'circa 1960 and full date 07 Jun 1941'
dates_from_string.get_structure(input)
#=> return
# [{:type=>:year, :value=>"1960", :distance=>4, :key_words=>[]},
# {:type=>:day, :value=>"07", :distance=>1, :key_words=>[]},
# {:type=>:month, :value=>"06", :distance=>1, :key_words=>[]},
# {:type=>:year, :value=>"1941", :distance=>0, :key_words=>[]}]
obj = DatesFromString.new(['and'])
input = 'between 1960 and 1965'
obj.get_structure(input)
#=> return
# [{:type=>:year, :value=>"1960", :distance=>2, :key_words=>['and']},
# {:type=>:year, :value=>"1965", :distance=>0, :key_words=>[]},]
dates_from_string_with_ordinals = DatesFromString.new(['and'], ordinals: ['st', 'th', 'nd'])
input = 'around September 2nd, 2013'
dates_from_string_with_ordinals.get_structure(input)
#=> return
# [{:type=>:month, :value=>"09", :distance=>1, :key_words=>[]},
# {:type=>:day, :value=>"2", :distance=>1, :key_words=>[]},
# {:type=>:year, :value=>"2013", :distance=>0, :key_words=>[]}]
input = "In September 2011, following a change in the law extending
the presidential term from four years to six,[5] Putin announced
that he would seek a third, non-consecutive term as President in
the 2012 presidential election, an announcement which led to
large-scale protests in many Russian cities. In March 2012 he won the election,
which was criticized for procedural irregularities, and is serving a six-year term"
dates_from_string.get_structure(input)
#=> return
# [{:type=>:month, :value=>"09", :distance=>1, :key_words=>[]},
# {:type=>:year, :value=>"2011", :distance=>30, :key_words=>[]},
# {:type=>:year, :value=>"2012", :distance=>15, :key_words=>[]},
# {:type=>:month, :value=>"03", :distance=>1, :key_words=>[]},
# {:type=>:year, :value=>"2012", :distance=>0, :key_words=>[]}]Development
After checking out the repo, run bin/setup to install dependencies. Then, run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
Contributing
- Fork it ( https://github.com/[my-github-username]/dates_from_string/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request