Class | Sass::Tree::RuleNode |
In: |
lib/sass/css.rb
lib/sass/tree/rule_node.rb |
Parent: | Object |
PARENT | = | '&' | The character used to include the parent selector |
parsed_rules | [RW] |
The CSS selectors for this rule, parsed for
commas and parent-references. It‘s only set once {Tree::Node#perform} has been called.
It‘s an array of arrays of arrays. The first level of arrays represents distinct lines in the Sass file; the second level represents comma-separated selectors; the third represents structure within those selectors, currently only parent-refs (represented by `:parent`). For example, &.foo, bar, baz, bip, &.bop, bup would be [[[:parent, "foo"], ["bar"], ["baz"]], [["bip"], [:parent, "bop"], ["bup"]]] @return [Array<Array<Array<String|Symbol>>>] |
rules | [RW] |
The CSS selectors for this rule. Each string is a
selector line, and the lines are meant to be separated by commas. For
example,
foo, bar, baz, bip, bop, bup would be ["foo, bar, baz", "bip, bop, bup"] @return [Array<String>] |
Compares the contents of two rules.
@param other [Object] The object to compare with @return [Boolean] Whether or not this node and the other object
are the same
# File lib/sass/tree/rule_node.rb, line 56 56: def ==(other) 57: self.class == other.class && rules == other.rules && super 58: end
@return [Boolean] Whether or not this rule is continued on the next line
# File lib/sass/tree/rule_node.rb, line 68 68: def continued? 69: @rules.last[-1] == ?, 70: end
Computes the CSS for the rule.
@param tabs [Fixnum] The level of indentation for the CSS @param super_rules [Array<Array<String>>] The rules for the parent node
(see \{#rules}), or `nil` if there are no parents
@return [String] The resulting CSS @raise [Sass::SyntaxError] if the rule has no parents but uses `&`
# File lib/sass/tree/rule_node.rb, line 79 79: def to_s(tabs, super_rules = nil) 80: resolved_rules = resolve_parent_refs(super_rules) 81: 82: properties = [] 83: sub_rules = [] 84: 85: rule_separator = style == :compressed ? ',' : ', ' 86: line_separator = [:nested, :expanded].include?(style) ? ",\n" : rule_separator 87: rule_indent = ' ' * (tabs - 1) 88: per_rule_indent, total_indent = [:nested, :expanded].include?(style) ? [rule_indent, ''] : ['', rule_indent] 89: 90: total_rule = total_indent + resolved_rules.map do |line| 91: per_rule_indent + line.join(rule_separator) 92: end.join(line_separator) 93: 94: children.each do |child| 95: next if child.invisible? 96: if child.is_a? RuleNode 97: sub_rules << child 98: else 99: properties << child 100: end 101: end 102: 103: to_return = '' 104: if !properties.empty? 105: old_spaces = ' ' * (tabs - 1) 106: spaces = ' ' * tabs 107: if @options[:line_comments] && style != :compressed 108: to_return << "#{old_spaces}/* line #{line}" 109: 110: if filename 111: relative_filename = if @options[:css_filename] 112: begin 113: Pathname.new(filename).relative_path_from( 114: Pathname.new(File.dirname(@options[:css_filename]))).to_s 115: rescue ArgumentError 116: nil 117: end 118: end 119: relative_filename ||= filename 120: to_return << ", #{relative_filename}" 121: end 122: 123: to_return << " */\n" 124: end 125: 126: if style == :compact 127: properties = properties.map { |a| a.to_s(1) }.select{|a| a && a.length > 0}.join(' ') 128: to_return << "#{total_rule} { #{properties} }\n" 129: elsif style == :compressed 130: properties = properties.map { |a| a.to_s(1) }.select{|a| a && a.length > 0}.join(';') 131: to_return << "#{total_rule}{#{properties}}" 132: else 133: properties = properties.map { |a| a.to_s(tabs + 1) }.select{|a| a && a.length > 0}.join("\n") 134: end_props = (style == :expanded ? "\n" + old_spaces : ' ') 135: to_return << "#{total_rule} {\n#{properties}#{end_props}}\n" 136: end 137: end 138: 139: tabs += 1 unless properties.empty? || style != :nested 140: sub_rules.each do |sub| 141: to_return << sub.to_s(tabs, resolved_rules) 142: end 143: 144: to_return 145: end
@see Node#to_sass
# File lib/sass/css.rb, line 26 26: def to_sass(tabs, opts = {}) 27: str = "\n#{' ' * tabs}#{rules.first}#{children.any? { |c| c.is_a? PropNode } ? "\n" : ''}" 28: 29: children.each do |child| 30: str << "#{child.to_sass(tabs + 1, opts)}" 31: end 32: 33: str 34: end
Runs any SassScript that may be embedded in the rule, and parses the selectors for commas.
@param environment [Sass::Environment] The lexical environment containing
variable and mixin values
# File lib/sass/tree/rule_node.rb, line 154 154: def perform!(environment) 155: @parsed_rules = @rules.map {|r| parse_selector(interpolate(r, environment))} 156: super 157: end