class ActsAsTaggableOn::DefaultParser
Returns a new TagList
using the given tag string.
Example:
tag_list = ActsAsTaggableOn::DefaultParser.parse("One , Two, Three") tag_list # ["One", "Two", "Three"]
Public Instance Methods
private
# File lib/acts_as_taggable_on/default_parser.rb, line 39 def delimiter # Parse the quoted tags d = ActsAsTaggableOn.delimiter # Separate multiple delimiters by bitwise operator d = d.join('|') if d.kind_of?(Array) d end
( # Tag
start delimiter ($1) A | # Either string start or #{delimiter} # a delimiter ) s*“ # quote (”) optionally preceded by whitespace (.*?) # Tag
($2) “s* # quote (”) optionally followed by whitespace (?= # Tag
end delimiter (not consumed; is zero-length lookahead) #{delimiter}s* | # Either a delimiter optionally followed by whitespace or z # string end )
# File lib/acts_as_taggable_on/default_parser.rb, line 58 def double_quote_pattern /(\A|#{delimiter})\s*"(.*?)"\s*(?=#{delimiter}\s*|\z)/ end
# File lib/acts_as_taggable_on/default_parser.rb, line 10 def parse string = @tag_list string = string.join(ActsAsTaggableOn.glue) if string.respond_to?(:join) TagList.new.tap do |tag_list| string = string.to_s.dup string.gsub!(double_quote_pattern) { # Append the matched tag to the tag list tag_list << Regexp.last_match[2] # Return the matched delimiter ($3) to replace the matched items '' } string.gsub!(single_quote_pattern) { # Append the matched tag ($2) to the tag list tag_list << Regexp.last_match[2] # Return an empty string to replace the matched items '' } # split the string by the delimiter # and add to the tag_list tag_list.add(string.split(Regexp.new delimiter)) end end
( # Tag
start delimiter ($1) A | # Either string start or #{delimiter} # a delimiter ) s*' # quote (') optionally preceded by whitespace (.*?) # Tag
($2) 's* # quote (') optionally followed by whitespace (?= # Tag
end delimiter (not consumed; is zero-length lookahead) #{delimiter}s* | d # Either a delimiter optionally followed by whitespace or z # string end )
# File lib/acts_as_taggable_on/default_parser.rb, line 73 def single_quote_pattern /(\A|#{delimiter})\s*'(.*?)'\s*(?=#{delimiter}\s*|\z)/ end