add one string to another
# File lib/liquid/standardfilters.rb, line 176 def append(input, string) input.to_s + string.to_s end
capitalize words in the input centence
# File lib/liquid/standardfilters.rb, line 32 def capitalize(input) input.to_s.capitalize end
# File lib/liquid/standardfilters.rb, line 278 def ceil(input) to_number(input).ceil.to_i end
Reformat a date using Ruby's core Time#strftime( string ) -> string
%a - The abbreviated weekday name (``Sun'') %A - The full weekday name (``Sunday'') %b - The abbreviated month name (``Jan'') %B - The full month name (``January'') %c - The preferred local date and time representation %d - Day of the month (01..31) %H - Hour of the day, 24-hour clock (00..23) %I - Hour of the day, 12-hour clock (01..12) %j - Day of the year (001..366) %m - Month of the year (01..12) %M - Minute of the hour (00..59) %p - Meridian indicator (``AM'' or ``PM'') %s - Number of seconds since 1970-01-01 00:00:00 UTC. %S - Second of the minute (00..60) %U - Week number of the current year, starting with the first Sunday as the first day of the first week (00..53) %W - Week number of the current year, starting with the first Monday as the first day of the first week (00..53) %w - Day of the week (Sunday is 0, 0..6) %x - Preferred representation for the date alone, no time %X - Preferred representation for the time alone, no date %y - Year without a century (00..99) %Y - Year with century %Z - Time zone name %% - Literal ``%'' character See also: http://www.ruby-doc.org/core/Time.html#method-i-strftime
# File lib/liquid/standardfilters.rb, line 221 def date(input, format) return input if format.to_s.empty? return input unless date = to_date(input) date.strftime(format.to_s) end
# File lib/liquid/standardfilters.rb, line 286 def default(input, default_value = "".freeze) is_blank = input.respond_to?(:empty?) ? input.empty? : !input is_blank ? default_value : input end
division
# File lib/liquid/standardfilters.rb, line 263 def divided_by(input, operand) apply_operation(input, operand, :/) end
convert an input string to DOWNCASE
# File lib/liquid/standardfilters.rb, line 22 def downcase(input) input.to_s.downcase end
# File lib/liquid/standardfilters.rb, line 36 def escape(input) CGI.escapeHTML(input).untaint rescue input end
# File lib/liquid/standardfilters.rb, line 41 def escape_once(input) input.to_s.gsub(HTML_ESCAPE_ONCE_REGEXP, HTML_ESCAPE) end
Get the first element of the passed in array
Example:
{{ product.images | first | to_img }}
# File lib/liquid/standardfilters.rb, line 234 def first(array) array.first if array.respond_to?(:first) end
# File lib/liquid/standardfilters.rb, line 282 def floor(input) to_number(input).floor.to_i end
Join elements of the array with certain character between them
# File lib/liquid/standardfilters.rb, line 108 def join(input, glue = ' '.freeze) InputIterator.new(input).join(glue) end
Get the last element of the passed in array
Example:
{{ product.images | last | to_img }}
# File lib/liquid/standardfilters.rb, line 243 def last(array) array.last if array.respond_to?(:last) end
# File lib/liquid/standardfilters.rb, line 89 def lstrip(input) input.to_s.lstrip end
map/collect on a given property
# File lib/liquid/standardfilters.rb, line 143 def map(input, property) InputIterator.new(input).map do |e| e = e.call if e.is_a?(Proc) if property == "to_liquid".freeze e elsif e.respond_to?(:[]) e[property] end end end
subtraction
# File lib/liquid/standardfilters.rb, line 253 def minus(input, operand) apply_operation(input, operand, :-) end
# File lib/liquid/standardfilters.rb, line 267 def modulo(input, operand) apply_operation(input, operand, :%) end
Add <br /> tags in front of all newlines in input string
# File lib/liquid/standardfilters.rb, line 186 def newline_to_br(input) input.to_s.gsub(/\n/, "<br />\n".freeze) end
addition
# File lib/liquid/standardfilters.rb, line 248 def plus(input, operand) apply_operation(input, operand, :+) end
prepend a string to another
# File lib/liquid/standardfilters.rb, line 181 def prepend(input, string) string.to_s + input.to_s end
remove a substring
# File lib/liquid/standardfilters.rb, line 166 def remove(input, string) input.to_s.gsub(string, ''.freeze) end
remove the first occurrences of a substring
# File lib/liquid/standardfilters.rb, line 171 def remove_first(input, string) input.to_s.sub(string, ''.freeze) end
Replace occurrences of a string with another
# File lib/liquid/standardfilters.rb, line 156 def replace(input, string, replacement = ''.freeze) input.to_s.gsub(string, replacement.to_s) end
Replace the first occurrences of a string with another
# File lib/liquid/standardfilters.rb, line 161 def replace_first(input, string, replacement = ''.freeze) input.to_s.sub(string, replacement.to_s) end
Reverse the elements of an array
# File lib/liquid/standardfilters.rb, line 137 def reverse(input) ary = InputIterator.new(input) ary.reverse end
# File lib/liquid/standardfilters.rb, line 271 def round(input, n = 0) result = to_number(input).round(to_number(n)) result = result.to_f if result.is_a?(BigDecimal) result = result.to_i if n == 0 result end
# File lib/liquid/standardfilters.rb, line 93 def rstrip(input) input.to_s.rstrip end
Return the size of an array or of an string
# File lib/liquid/standardfilters.rb, line 17 def size(input) input.respond_to?(:size) ? input.size : 0 end
# File lib/liquid/standardfilters.rb, line 49 def slice(input, offset, length=nil) offset = Integer(offset) length = length ? Integer(length) : 1 if input.is_a?(Array) input.slice(offset, length) || [] else input.to_s.slice(offset, length) || '' end end
Sort elements of the array provide optional property with which to sort an array of hashes or drops
# File lib/liquid/standardfilters.rb, line 114 def sort(input, property = nil) ary = InputIterator.new(input) if property.nil? ary.sort elsif ary.first.respond_to?(:[]) && !ary.first[property].nil? ary.sort {|a,b| a[property] <=> b[property] } elsif ary.first.respond_to?(property) ary.sort {|a,b| a.send(property) <=> b.send(property) } end end
Split input string into an array of substrings separated by given pattern.
Example:
<div class="summary">{{ post | split '//' | first }}</div>
# File lib/liquid/standardfilters.rb, line 81 def split(input, pattern) input.to_s.split(pattern) end
# File lib/liquid/standardfilters.rb, line 85 def strip(input) input.to_s.strip end
# File lib/liquid/standardfilters.rb, line 97 def strip_html(input) empty = ''.freeze input.to_s.gsub(/<script.*?<\/script>/, empty).gsub(/<!--.*?-->/, empty).gsub(/<style.*?<\/style>/, empty).gsub(/<.*?>/, empty) end
Remove all newlines from the string
# File lib/liquid/standardfilters.rb, line 103 def strip_newlines(input) input.to_s.gsub(/\r?\n/, ''.freeze) end
multiplication
# File lib/liquid/standardfilters.rb, line 258 def times(input, operand) apply_operation(input, operand, :*) end
Truncate a string down to x characters
# File lib/liquid/standardfilters.rb, line 61 def truncate(input, length = 50, truncate_string = "...".freeze) if input.nil? then return end l = length.to_i - truncate_string.length l = 0 if l < 0 input.length > length.to_i ? input[0...l] + truncate_string : input end
# File lib/liquid/standardfilters.rb, line 68 def truncatewords(input, words = 15, truncate_string = "...".freeze) if input.nil? then return end wordlist = input.to_s.split l = words.to_i - 1 l = 0 if l < 0 wordlist.length > l ? wordlist[0..l].join(" ".freeze) + truncate_string : input end
Remove duplicate elements from an array provide optional property with which to determine uniqueness
# File lib/liquid/standardfilters.rb, line 127 def uniq(input, property = nil) ary = InputIterator.new(input) if property.nil? input.uniq elsif input.first.respond_to?(:[]) input.uniq{ |a| a[property] } end end
convert an input string to UPCASE
# File lib/liquid/standardfilters.rb, line 27 def upcase(input) input.to_s.upcase end
# File lib/liquid/standardfilters.rb, line 45 def url_encode(input) CGI.escape(input) rescue input end
# File lib/liquid/standardfilters.rb, line 323 def apply_operation(input, operand, operation) result = to_number(input).send(operation, to_number(operand)) result.is_a?(BigDecimal) ? result.to_f : result end
# File lib/liquid/standardfilters.rb, line 306 def to_date(obj) return obj if obj.respond_to?(:strftime) case obj when 'now'.freeze, 'today'.freeze Time.now when /\A\d+\z/, Integer Time.at(obj.to_i) when String Time.parse(obj) else nil end rescue ArgumentError nil end
# File lib/liquid/standardfilters.rb, line 293 def to_number(obj) case obj when Float BigDecimal.new(obj.to_s) when Numeric obj when String (obj.strip =~ /\A\d+\.\d+\z/) ? BigDecimal.new(obj) : obj.to_i else 0 end end