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blog/_src/_plugins/titlecase.rb

36 lines
1.1 KiB
Ruby

class String
def titlecase
small_words = %w(a an and as at but by en for if in of on or the to v v. via vs vs. ezeep)
x = split(" ").map do |word|
# note: word could contain non-word characters!
# downcase all small_words, capitalize the rest
small_words.include?(word.gsub(/\W/, "").downcase) ? word.downcase! : word.smart_capitalize!
word
end
# capitalize first and last words
#x.first.to_s.smart_capitalize!
#x.last.to_s.smart_capitalize!
# small words are capitalized after colon, period, exclamation mark, question mark
x.join(" ").gsub(/(:|\.|!|\?)\s?(\W*#{small_words.join("|")}\W*)\s/) { "#{$1} #{$2.smart_capitalize} " }
end
def titlecase!
replace(titlecase)
end
def smart_capitalize
# ignore any leading crazy characters and capitalize the first real character
if self =~ /^['"\(\[']*([a-z])/
i = index($1)
x = self[i,self.length]
# word with capitals and periods mid-word are left alone
self[i,1] = self[i,1].upcase unless x =~ /[A-Z]/ or x =~ /\.\w+/
end
self
end
def smart_capitalize!
replace(smart_capitalize)
end
end