Class: Kwartz::Ruleset

Inherits:
Object
  • Object
show all
Defined in:
lib/kwartz/node.rb

Overview

ruleset in presentation logic file

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(selectors) ⇒ Ruleset

Returns a new instance of Ruleset.



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# File 'lib/kwartz/node.rb', line 208

def initialize(selectors)
  @selectors = selectors      # list of string ('#id', '.class', or 'tagname')
end

Instance Attribute Details

#after ⇒ Object

block statement



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# File 'lib/kwartz/node.rb', line 217

def after
  @after
end

#append ⇒ Object

list of NativeExpression



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# File 'lib/kwartz/node.rb', line 214

def append
  @append
end

#attrs ⇒ Object

Hash(key: attribute name, value: NativeExpression)



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# File 'lib/kwartz/node.rb', line 213

def attrs
  @attrs
end

#before ⇒ Object

block statement



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# File 'lib/kwartz/node.rb', line 217

def before
  @before
end

#cont ⇒ Object

NativeExpression



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# File 'lib/kwartz/node.rb', line 212

def cont
  @cont
end

#elem ⇒ Object

NativeExpression



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# File 'lib/kwartz/node.rb', line 212

def elem
  @elem
end

#etag ⇒ Object

NativeExpression



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# File 'lib/kwartz/node.rb', line 212

def etag
  @etag
end

#logic ⇒ Object

block statement



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# File 'lib/kwartz/node.rb', line 217

def logic
  @logic
end

#remove ⇒ Object

list of attribute name



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# File 'lib/kwartz/node.rb', line 215

def remove
  @remove
end

#selectors ⇒ Object

Returns the value of attribute selectors.



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# File 'lib/kwartz/node.rb', line 211

def selectors
  @selectors
end

#stag ⇒ Object

NativeExpression



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# File 'lib/kwartz/node.rb', line 212

def stag
  @stag
end

#tagname ⇒ Object

string



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# File 'lib/kwartz/node.rb', line 216

def tagname
  @tagname
end

Instance Method Details

#_inspect(indent = 0) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 359

def _inspect(indent=0)
  space = '  ' * indent
  sb = []
  sb << space <<   "- selectors: #{@selectors.inspect}\n"
  sb << space <<   "  stag: #{@stag.code}\n" unless @stag.nil?
  sb << space <<   "  cont: #{@cont.code}\n" unless @cont.nil?
  sb << space <<   "  etag: #{@etag.code}\n" unless @etag.nil?
  sb << space <<   "  elem: #{@elem.code}\n" unless @elem.nil?
  #
  sb << space <<   "  attrs:\n" if @attrs
  @attrs.keys.sort.each do |key|
    val = @attrs[key]
    sb << space << "    - name:  #{key}\n"
    sb << space << "      value: #{val.code}\n"
  end if @attrs
  #
  sb << space <<   "  append:\n" if @append
  @append.each do |expr|
    sb << space << "    - #{expr.code}\n"
  end if @append
  #
  sb << space <<   "  remove:\n" if @remove
  @remove.each do |name|
    sb << space << "    - #{name}\n"
  end if @remove
  #
  sb << space <<   "  tagname: #{@tagname}\n" unless @tagname.nil?
  #
  sb << space <<   "  logic:\n" if @logic
  @logic.each do |stmt|
    sb << space << "    - " << stmt._inspect()
  end if @logic
  #
  sb << space <<   "  before:\n" if @before
  @before.each do |stmt|
    sb << space << "    - " << stmt._inspect()
  end if @before
  #
  sb << space <<   "  after:\n" if @after
  @after.each do |stmt|
    sb << space << "    - " << stmt._inspect()
  end if @after
  #
  return sb.join
end

#_parse_logic_str(logic_str) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 291

def _parse_logic_str(logic_str)
  return unless logic_str
  stmt_list = []
  logic_str.each_line do |line|
    if line =~ /^\s*_(stag|cont|etag|elem)(?:\(\))?;?\s*(?:\#.*)?$/
      kind = $1
      stmt_list << ExpandStatement.new(kind.intern)
    elsif line =~ /^\s*(_(element|content)([-()'"\w\s]*));?\s*(?:\#.*)?$/
      str, kind, arg  = $1, $2, $3
      arg.strip!
      if arg =~ /\A\((.*)\)\z/ then arg = $1 end
      if arg.empty?
        raise parse_error("'#{str}': element name required.", nil)
      end
      case arg
      when /\A"(.*)"\z/   ;  name = $1
      when /\A'(.*)'\z/   ;  name = $1
      when /\A([-\w]+)\z/ ;  name = $1
      else
        raise parse_error("'#{str}': invalid pattern.", nil)
      end
      unless name =~ /\A[-\w]+\z/
        raise parse_error("'#{name}': invalid #{kind} name.", nil)
      end
      stmt_list << ExpandStatement.new(kind.intern, name)
    #elsif line =~ /^\s*print(?:\s+(\S+)|\((.+)\))\s*;?\s*(?:\#.*)?$/
    elsif line =~ /^\s*print(?:\s+(.*?)|\((.*)\))\s*;?\s*$/
      arg = $1 || $2
      stmt_list << PrintStatement.new([NativeExpression.new(arg)])
    else
      stmt_list << NativeStatement.new(line.chomp, nil)
    end
  end
  return stmt_list
end

#duplicate ⇒ Object 



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# File 'lib/kwartz/node.rb', line 328

def duplicate()
  ruleset = dup()
  r = ruleset
  r.selectors = nil
  r.attrs  = @attrs.dup()  if @attrs
  r.append = @append.dup() if @append
  r.remove = @remove.dup() if @remove
  r.logic  = @logic.dup()  if @logic
  r.before = @before.dup() if @before
  r.after  = @after.dup()  if @after
  return r
end

#merge(ruleset) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 342

def merge(ruleset)
  r = ruleset
  r2 = duplicate()
  r2.stag  = r.stag  if r.stag
  r2.etag  = r.etag  if r.etag
  r2.cont  = r.cont  if r.cont
  (r2.attrs ||= {}).update(r.attrs) if r.attrs
  r2.append += r.append if r.append
  r2.remove += r.remove if r.remove
  r2.tagname = r.tagname if r.tagname
  r2.logic  = r.logic  if r.logic
  r2.before = r.before if r.before
  r2.after  = r.after  if r.after
  return r2
end

#set_after(logic_str) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 285

def set_after(logic_str)
  stmt_list = _parse_logic_str(logic_str)
  @after = stmt_list
end

#set_append(list, flag_escape = nil) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 254

def set_append(list, flag_escape=nil)
  list.each do |expr_str|
    next if !expr_str || expr_str.empty?
    @append ||= []
    @append << NativeExpression.new(expr_str, flag_escape)
  end
end

#set_attrs(hash, flag_escape = nil) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 245

def set_attrs(hash, flag_escape=nil)
  hash.each do |aname, expr_str|
    next if !expr_str || expr_str.empty?
    @attrs ||= {}
    @attrs[aname] = NativeExpression.new(expr_str, flag_escape)
  end if hash
end

#set_before(logic_str) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 279

def set_before(logic_str)
  stmt_list = _parse_logic_str(logic_str)
  @before = stmt_list
end

#set_cont(str, flag_escape = nil) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 225

def set_cont(str, flag_escape=nil)
  @cont = NativeExpression.new(str, flag_escape)
end

#set_elem(str, flag_escape = nil) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 235

def set_elem(str, flag_escape=nil)
  @elem = NativeExpression.new(str, flag_escape)
end

#set_etag(str, flag_escape = nil) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 230

def set_etag(str, flag_escape=nil)
  @etag = NativeExpression.new(str, flag_escape)
end

#set_logic(logic_str) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 273

def set_logic(logic_str)
  stmt_list = _parse_logic_str(logic_str)
  @logic = stmt_list
end

#set_remove(list) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 263

def set_remove(list)
  @remove = list if list
end

#set_stag(str, flag_escape = nil) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 220

def set_stag(str, flag_escape=nil)
  @stag = NativeExpression.new(str, flag_escape)
end

#set_tagname(str) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 268

def set_tagname(str)
  @tagname = str if str
end

#set_value(str, flag_escape = nil) ⇒ Object 



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# File 'lib/kwartz/node.rb', line 240

def set_value(str, flag_escape=nil)
  set_cont(str, flag_escape)
end