Class: Kwartz::RubyHandler
- Defined in:
- lib/kwartz/binding/ruby.rb
Overview
directive handler for Ruby
Direct Known Subclasses
Constant Summary collapse
- RUBY_DIRECTIVE_PATTERN =
/\A(\w+)(?:[:\s]\s*(.*))?\z/
- RUBY_MAPPING_PATTERN =
/\A'([-:\w]+)'\s+(.*)\z/
- RUBY_DIRECTIVE_FORMAT =
'%s: %s'
Instance Attribute Summary
Attributes inherited from Handler
#converter, #even, #filename, #odd
Instance Method Summary collapse
- #directive_format ⇒ Object
- #directive_pattern ⇒ Object
- #handle(stmt_list, handler_arg) ⇒ Object
- #mapping_pattern ⇒ Object
Methods inherited from Handler
#_elem_info_table, #_import_element_info_from_handler, #extract, get_class, #get_element_info, #get_element_ruleset, #initialize, register_class
Methods included from ElementExpander
#expand_element_info, #expand_statement, #get_element_info, #get_element_ruleset
Methods included from Assertion
Methods included from StatementHelper
#add_foreach_stmts, #add_native_code, #add_native_expr_with_default, #build_print_args, #build_print_expr_stmt, #build_print_stmt, #create_text_print_stmt, #etag_stmt, #stag_stmt, #wrap_content_with_native_stmt, #wrap_element_with_native_stmt
Methods included from ConverterHelper
#_last_stmt_kind, #convert_error, #error_if_empty_tag, #error_when_last_stmt_is_not_if, #include_properties
Constructor Details
This class inherits a constructor from Kwartz::Handler
Instance Method Details
#directive_format ⇒ Object
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# File 'lib/kwartz/binding/ruby.rb', line 38 def directive_format return RUBY_DIRECTIVE_FORMAT end |
#directive_pattern ⇒ Object
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# File 'lib/kwartz/binding/ruby.rb', line 24 def directive_pattern return RUBY_DIRECTIVE_PATTERN end |
#handle(stmt_list, handler_arg) ⇒ Object
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# File 'lib/kwartz/binding/ruby.rb', line 43 def handle(stmt_list, handler_arg) ret = super return ret if ret arg = handler_arg d_name = arg.directive_name d_arg = arg.directive_arg d_str = arg.directive_str #stag_info = arg.stag_info #etag_info = arg.etag_info #cont_stmts = arg.cont_stmts case d_name when :for, :For, :FOR, :list, :List, :LIST unless d_arg =~ /\A(\w+)(?:,\s*(\w+))?\s+in\s+(.*)\z/ \ || d_arg =~ /\A(\w+)(?:,(\w+))?\s*[:=]\s*(.*)\z/ raise convert_error("'#{d_str}': invalid argument.", arg.stag_info.linenum) end loopvar = $1 ; loopval = $2 ; looplist = $3 is_foreach = d_name == :for || d_name == :For || d_name == :FOR counter = d_name == :for || d_name == :list ? nil : "#{loopvar}_ctr" toggle = d_name != :FOR && d_name != :LIST ? nil : "#{loopvar}_tgl" foreach_code = loopval ? "#{looplist}.each do |#{loopvar}, #{loopval}|" \ : "for #{loopvar} in #{looplist} do" code = [] code << "#{counter} = 0" if counter code << foreach_code code << " #{counter} += 1" if counter code << " #{toggle} = #{counter}%2==0 ? #{@even} : #{@odd}" if toggle if is_foreach wrap_element_with_native_stmt(stmt_list, arg, code, "end", :foreach) else wrap_content_with_native_stmt(stmt_list, arg, code, "end", :foreach) end when :while wrap_element_with_native_stmt(stmt_list, arg, "while #{d_arg} do", "end", :while) #stmt_list << NativeStatement.new("while #{d_arg} do", :while) #stmt_list << stag_stmt(arg) #stmt_list.concat(arg.cont_stmts) #stmt_list << etag_stmt(arg) #stmt_list << NativeStatement.new("end", :while) when :loop error_if_empty_tag(arg) wrap_content_with_native_stmt(stmt_list, arg, "while #{d_arg} do", "end", :while) #stmt_list << stag_stmt(arg) #stmt_list << NativeStatement.new("while #{d_arg} do", :while) #stmt_list.concat(arg.cont_stmts) #stmt_list << NativeStatement.new("end", :while) #stmt_list << etag_stmt(arg) when :set wrap_element_with_native_stmt(stmt_list, arg, d_arg, nil, :set) #stmt_list << NativeStatement.new(d_arg, :set) #stmt_list << stag_stmt(arg) #stmt_list.concat(arg.cont_stmts) #stmt_list << etag_stmt(arg) when :if wrap_element_with_native_stmt(stmt_list, arg, "if #{d_arg} then", "end", :if) #stmt_list << NativeStatement.new("if #{d_arg} then", :if) #stmt_list << stag_stmt(arg) #stmt_list.concat(arg.cont_stmts) #stmt_list << etag_stmt(arg) #stmt_list << NativeStatement.new("end", :if) when :elsif, :else error_when_last_stmt_is_not_if(stmt_list, arg) stmt_list.pop # delete 'end' kind = d_name == :else ? :else : :elseif code = d_name == :else ? "else" : "elsif #{d_arg} then" wrap_element_with_native_stmt(stmt_list, arg, code, "end", kind) #stmt_list << NativeStatement.new(code, kind) #stmt_list << stag_stmt(arg) #stmt_list.concat(arg.cont_stmts) #stmt_list << etag_stmt(arg) #stmt_list << NativeStatement.new("end", kind) when :default, :Default, :DEFAULT error_if_empty_tag(arg) expr_code = d_arg flag_escape = d_name == :default ? nil : (d_name == :Default) add_native_expr_with_default(stmt_list, arg, expr_code, flag_escape, "if (#{d_arg}) && !(#{d_arg}).to_s.empty? then", "else", "end") #stmt_list << stag_stmt(arg) #stmt_list << NativeStatement.new_without_newline("if (#{d_arg}) && !(#{d_arg}).to_s.empty? then", :if) #flag_escape = d_name == :default ? nil : (d_name == :Default) #stmt_list << PrintStatement.new([ NativeExpression.new(d_arg, flag_escape) ]) #stmt_list << NativeStatement.new_without_newline("else", :else) #stmt_list.concat(arg.cont_stmts) #stmt_list << NativeStatement.new_without_newline("end", :else) #stmt_list << etag_stmt(arg) else return false end #case return true end |
#mapping_pattern ⇒ Object
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# File 'lib/kwartz/binding/ruby.rb', line 31 def mapping_pattern return RUBY_MAPPING_PATTERN end |