diff options
Diffstat (limited to 'actionview/lib/action_view/template')
3 files changed, 166 insertions, 72 deletions
diff --git a/actionview/lib/action_view/template/handlers/erb.rb b/actionview/lib/action_view/template/handlers/erb.rb index 5d047a6991..cee5408aa9 100644 --- a/actionview/lib/action_view/template/handlers/erb.rb +++ b/actionview/lib/action_view/template/handlers/erb.rb @@ -1,79 +1,12 @@ -require "erubis" - module ActionView class Template module Handlers - class Erubis < ::Erubis::Eruby - 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 + Erubis = ActiveSupport::Deprecation::DeprecatedConstantProxy.new("Erubis", "ActionView::Template::Handlers::ERB::Erubis", message: "ActionView::Template::Handlers::Erubis is deprecated and will be removed from Rails 5.2. Switch to ActionView::Template::Handlers::ERB::Erubi instead.") class ERB + autoload :Erubi, "action_view/template/handlers/erb/erubi" + autoload :Erubis, "action_view/template/handlers/erb/erubis" + # Specify trim mode for the ERB compiler. Defaults to '-'. # See ERB documentation for suitable values. class_attribute :erb_trim_mode @@ -81,7 +14,7 @@ module ActionView # Default implementation used. class_attribute :erb_implementation - self.erb_implementation = Erubis + self.erb_implementation = Erubi # Do not escape templates of these mime types. class_attribute :escape_whitelist diff --git a/actionview/lib/action_view/template/handlers/erb/erubi.rb b/actionview/lib/action_view/template/handlers/erb/erubi.rb new file mode 100644 index 0000000000..755cc84015 --- /dev/null +++ b/actionview/lib/action_view/template/handlers/erb/erubi.rb @@ -0,0 +1,81 @@ +require "erubi" + +module ActionView + class Template + module Handlers + class ERB + class Erubi < ::Erubi::Engine + # :nodoc: all + def initialize(input, properties = {}) + @newline_pending = 0 + + # Dup properties so that we don't modify argument + properties = Hash[properties] + properties[:preamble] = "@output_buffer = output_buffer || ActionView::OutputBuffer.new;" + properties[:postamble] = "@output_buffer.to_s" + properties[:bufvar] = "@output_buffer" + properties[:escapefunc] = "" + + super + end + + def evaluate(action_view_erb_handler_context) + pr = eval("proc { #{@src} }", binding, @filename || "(erubi)") + action_view_erb_handler_context.instance_eval(&pr) + end + + private + def add_text(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 << text.gsub(/['\\]/, '\\\\\&') + src << "'.freeze;" + + @newline_pending = 0 + end + end + + BLOCK_EXPR = /\s*((\s+|\))do|\{)(\s*\|[^|]*\|)?\s*\Z/ + + def add_expression(indicator, code) + flush_newline_if_pending(src) + + if (indicator == "==") || @escape + src << "@output_buffer.safe_expr_append=" + else + src << "@output_buffer.append=" + end + + if BLOCK_EXPR.match?(code) + src << " " << code + else + src << "(" << code << ");" + end + end + + def add_code(code) + flush_newline_if_pending(src) + super + end + + def add_postamble(_) + flush_newline_if_pending(src) + super + 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 diff --git a/actionview/lib/action_view/template/handlers/erb/erubis.rb b/actionview/lib/action_view/template/handlers/erb/erubis.rb new file mode 100644 index 0000000000..bf316ceec5 --- /dev/null +++ b/actionview/lib/action_view/template/handlers/erb/erubis.rb @@ -0,0 +1,80 @@ +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 |