diff options
Diffstat (limited to 'actionpack/lib/action_view/template/handlers/erb.rb')
| -rw-r--r-- | actionpack/lib/action_view/template/handlers/erb.rb | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/actionpack/lib/action_view/template/handlers/erb.rb b/actionpack/lib/action_view/template/handlers/erb.rb deleted file mode 100644 index 7d7a7af51d..0000000000 --- a/actionpack/lib/action_view/template/handlers/erb.rb +++ /dev/null @@ -1,146 +0,0 @@ -require 'action_dispatch/http/mime_type' -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 << "';" - - @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+(do|\{)(\s*\|[^|]*\|)?\s*\Z/ - - def add_expr_literal(src, code) - flush_newline_if_pending(src) - if code =~ BLOCK_EXPR - 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 code =~ BLOCK_EXPR - src << "@output_buffer.safe_append= " << code - else - src << "@output_buffer.safe_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}';" - @newline_pending = 0 - end - end - end - - class ERB - # Specify trim mode for the ERB compiler. Defaults to '-'. - # See ERB documentation for suitable values. - class_attribute :erb_trim_mode - self.erb_trim_mode = '-' - - # Default implementation used. - class_attribute :erb_implementation - self.erb_implementation = Erubis - - # Do not escape templates of these mime types. - class_attribute :escape_whitelist - self.escape_whitelist = ["text/plain"] - - ENCODING_TAG = Regexp.new("\\A(<%#{ENCODING_FLAG}-?%>)[ \\t]*") - - def self.call(template) - new.call(template) - end - - def supports_streaming? - true - end - - def handles_encoding? - true - end - - def call(template) - # First, convert to BINARY, so in case the encoding is - # wrong, we can still find an encoding tag - # (<%# encoding %>) inside the String using a regular - # expression - template_source = template.source.dup.force_encoding(Encoding::ASCII_8BIT) - - erb = template_source.gsub(ENCODING_TAG, '') - encoding = $2 - - erb.force_encoding valid_encoding(template.source.dup, encoding) - - # Always make sure we return a String in the default_internal - erb.encode! - - self.class.erb_implementation.new( - erb, - :escape => (self.class.escape_whitelist.include? template.type), - :trim => (self.class.erb_trim_mode == "-") - ).src - end - - private - - def valid_encoding(string, encoding) - # If a magic encoding comment was found, tag the - # String with this encoding. This is for a case - # where the original String was assumed to be, - # for instance, UTF-8, but a magic comment - # proved otherwise - string.force_encoding(encoding) if encoding - - # If the String is valid, return the encoding we found - return string.encoding if string.valid_encoding? - - # Otherwise, raise an exception - raise WrongEncodingError.new(string, string.encoding) - end - end - end - end -end |