class Flatrack::Template::Erubis::Handler

The default ERB handler for rendering erb files in flatrack

Constants

BLOCK_EXPR

Private Instance Methods

add_expr(src, code, indicator) click to toggle source

Erubis toggles <%= and <%== behavior when escaping is enabled. We override to always treat <%== as escaped.

Calls superclass method
# File lib/flatrack/template/erubis/handler.rb, line 29
def add_expr(src, code, indicator)
  return super unless indicator == '=='
  add_expr_escaped(src, code)
end
add_expr_escaped(src, code) click to toggle source
# File lib/flatrack/template/erubis/handler.rb, line 40
def add_expr_escaped(src, code)
  add_expr_with_type(src, code, :safe)
end
add_expr_literal(src, code) click to toggle source
# File lib/flatrack/template/erubis/handler.rb, line 36
def add_expr_literal(src, code)
  add_expr_with_type(src, code)
end
add_expr_with_type(src, code, type = nil) click to toggle source
# File lib/flatrack/template/erubis/handler.rb, line 44
def add_expr_with_type(src, code, type = nil)
  setter = [type, :append].compact.join('_')
  flush_newline_if_pending(src)
  if code =~ BLOCK_EXPR
    src << "@output_buffer.#{setter}= " << code
  else
    src << "@output_buffer.#{setter}=(" << code << ');'
  end
end
add_postamble(src) click to toggle source
# File lib/flatrack/template/erubis/handler.rb, line 59
def add_postamble(src)
  flush_newline_if_pending(src)
  src << 'output_buffer = @output_buffer.to_s'
end
add_preamble(src) click to toggle source
# File lib/flatrack/template/erubis/handler.rb, line 10
def add_preamble(src)
  @newline_pending = 0
end
add_stmt(src, code) click to toggle source
Calls superclass method
# File lib/flatrack/template/erubis/handler.rb, line 54
def add_stmt(src, code)
  flush_newline_if_pending(src)
  super
end
add_text(src, text) click to toggle source
# File lib/flatrack/template/erubis/handler.rb, line 14
def add_text(src, text)
  return if text.empty?
  if text == "\n"
    @newline_pending += 1
  else
    src << "@output_buffer.safe_append='"
    src << "\n" * @newline_pending if @newline_pending > 0
    src << escape_text(text)
    src << "'.freeze;"
    @newline_pending = 0
  end
end
flush_newline_if_pending(src) click to toggle source
# File lib/flatrack/template/erubis/handler.rb, line 64
def flush_newline_if_pending(src)
  if @newline_pending > 0
    src << begin
      "@output_buffer.safe_append='#{"\n" * @newline_pending}'.freeze;"
    end
    @newline_pending = 0
  end
end