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author | Piotr Sarnacki <drogus@gmail.com> | 2013-06-20 15:42:49 -0700 |
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committer | Piotr Sarnacki <drogus@gmail.com> | 2013-06-20 15:42:49 -0700 |
commit | a29f746398e7b0647885343e7f26d977dd251999 (patch) | |
tree | 1e2cd2ee1f8f31812c0acf71350ffe423ca8c5a9 /actionview/lib/action_view/template/handlers | |
parent | 7c69a829a311a31109939cff19b700b36b97d5c4 (diff) | |
parent | d6b1caa8f2011487c08b414605883f1f220d0aaa (diff) | |
download | rails-a29f746398e7b0647885343e7f26d977dd251999.tar.gz rails-a29f746398e7b0647885343e7f26d977dd251999.tar.bz2 rails-a29f746398e7b0647885343e7f26d977dd251999.zip |
Merge pull request #11032 from strzalek/extract-actionview
Extract ActionView to separate directory
Diffstat (limited to 'actionview/lib/action_view/template/handlers')
-rw-r--r-- | actionview/lib/action_view/template/handlers/builder.rb | 26 | ||||
-rw-r--r-- | actionview/lib/action_view/template/handlers/erb.rb | 145 | ||||
-rw-r--r-- | actionview/lib/action_view/template/handlers/raw.rb | 11 |
3 files changed, 182 insertions, 0 deletions
diff --git a/actionview/lib/action_view/template/handlers/builder.rb b/actionview/lib/action_view/template/handlers/builder.rb new file mode 100644 index 0000000000..d90b0c6378 --- /dev/null +++ b/actionview/lib/action_view/template/handlers/builder.rb @@ -0,0 +1,26 @@ +module ActionView + module Template::Handlers + class Builder + # Default format used by Builder. + class_attribute :default_format + self.default_format = :xml + + def call(template) + require_engine + "xml = ::Builder::XmlMarkup.new(:indent => 2);" + + "self.output_buffer = xml.target!;" + + template.source + + ";xml.target!;" + end + + protected + + def require_engine + @required ||= begin + require "builder" + true + end + end + end + end +end diff --git a/actionview/lib/action_view/template/handlers/erb.rb b/actionview/lib/action_view/template/handlers/erb.rb new file mode 100644 index 0000000000..c8a0059596 --- /dev/null +++ b/actionview/lib/action_view/template/handlers/erb.rb @@ -0,0 +1,145 @@ +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 diff --git a/actionview/lib/action_view/template/handlers/raw.rb b/actionview/lib/action_view/template/handlers/raw.rb new file mode 100644 index 0000000000..0c0d1fffcb --- /dev/null +++ b/actionview/lib/action_view/template/handlers/raw.rb @@ -0,0 +1,11 @@ +module ActionView + module Template::Handlers + class Raw + def call(template) + escaped = template.source.gsub(':', '\:') + + '%q:' + escaped + ':;' + end + end + end +end |