gem "erubis" require "erubis" module ActionView class Template module Handlers class ERB class Erubis < ::Erubis::Eruby # :nodoc: all def add_preamble(src) @newline_pending = 0 src << "@output_buffer = output_buffer || ActionView::OutputBuffer.new;" end 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 # Erubis toggles <%= and <%== behavior when escaping is enabled. # We override to always treat <%== as escaped. def add_expr(src, code, indicator) case indicator when "==" add_expr_escaped(src, code) else super end end BLOCK_EXPR = /\s*((\s+|\))do|\{)(\s*\|[^|]*\|)?\s*\Z/ def add_expr_literal(src, code) flush_newline_if_pending(src) if BLOCK_EXPR.match?(code) src << "@output_buffer.append= " << code else src << "@output_buffer.append=(" << code << ");" end end def add_expr_escaped(src, code) flush_newline_if_pending(src) if BLOCK_EXPR.match?(code) src << "@output_buffer.safe_expr_append= " << code else src << "@output_buffer.safe_expr_append=(" << code << ");" end end def add_stmt(src, code) flush_newline_if_pending(src) super end def add_postamble(src) flush_newline_if_pending(src) src << "@output_buffer.to_s" end def flush_newline_if_pending(src) if @newline_pending > 0 src << "@output_buffer.safe_append='#{"\n" * @newline_pending}'.freeze;" @newline_pending = 0 end end end end end end end