remove explicit source style in docs when not needed

10 files changed, 23 insertions, 23 deletions

diff --git a/docs/modules/extensions/pages/block-macro-processor.adoc b/docs/modules/extensions/pages/block-macro-processor.adoc
index cf38ea98..af3e6ea4 100644
--- a/docs/modules/extensions/pages/block-macro-processor.adoc
+++ b/docs/modules/extensions/pages/block-macro-processor.adoc
@@ -6,7 +6,7 @@ Create a block macro named `gist` for embedding a gist.
 
 == sample-with-gist-macro.adoc
 
-[source,asciidoc]
+[,asciidoc]
 ----
 .My Gist
 gist::123456[]
@@ -14,7 +14,7 @@ gist::123456[]
 
 == GistBlockMacro
 
-[source,ruby]
+[,ruby]
 ----
 class GistBlockMacro < Asciidoctor::Extensions::BlockMacroProcessor
   use_dsl
@@ -38,7 +38,7 @@ end
 
 == Usage
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do
   block_macro GistBlockMacro if document.basebackend? 'html'
diff --git a/docs/modules/extensions/pages/block-processor.adoc b/docs/modules/extensions/pages/block-processor.adoc
index f6eb179b..40ebca6f 100644
--- a/docs/modules/extensions/pages/block-processor.adoc
+++ b/docs/modules/extensions/pages/block-processor.adoc
@@ -6,7 +6,7 @@ Register a custom block style named `shout` that uppercases all the words and co
 
 == sample-with-shout-block.adoc
 
-[source,asciidoc]
+[,asciidoc]
 ----
 [shout]
 The time is now. Get a move on.
@@ -14,7 +14,7 @@ The time is now. Get a move on.
 
 == ShoutBlock
 
-[source,ruby]
+[,ruby]
 ----
 class ShoutBlock < Asciidoctor::Extensions::BlockProcessor
   PeriodRx = /\.(?= |$)/
@@ -35,7 +35,7 @@ end
 
 == Usage
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do
   block ShoutBlock
diff --git a/docs/modules/extensions/pages/compound-block-processor.adoc b/docs/modules/extensions/pages/compound-block-processor.adoc
index cd88a3b6..f225f1e9 100644
--- a/docs/modules/extensions/pages/compound-block-processor.adoc
+++ b/docs/modules/extensions/pages/compound-block-processor.adoc
@@ -21,7 +21,7 @@ Register a custom block named `collapsible` that transforms a listing block into
 ....
 
 .collapsible-block.rb
-[source,ruby]
+[,ruby]
 ----
 class CollapsibleBlock < Asciidoctor::Extensions::BlockProcessor
   enable_dsl
diff --git a/docs/modules/extensions/pages/docinfo-processor.adoc b/docs/modules/extensions/pages/docinfo-processor.adoc
index 636b24a0..95372289 100644
--- a/docs/modules/extensions/pages/docinfo-processor.adoc
+++ b/docs/modules/extensions/pages/docinfo-processor.adoc
@@ -6,7 +6,7 @@ Appends the Google Analytics tracking code to the bottom of an HTML document.
 
 == GoogleAnalyticsDocinfoProcessor
 
-[source,ruby]
+[,ruby]
 ----
 class GoogleAnalyticsDocinfoProcessor < Asciidoctor::Extensions::DocinfoProcessor
   use_dsl
@@ -27,7 +27,7 @@ end
 
 == Usage
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do
   docinfo_processor GoogleAnalyticsDocinfoProcessor
diff --git a/docs/modules/extensions/pages/include-processor.adoc b/docs/modules/extensions/pages/include-processor.adoc
index cf627562..4c7ed13d 100644
--- a/docs/modules/extensions/pages/include-processor.adoc
+++ b/docs/modules/extensions/pages/include-processor.adoc
@@ -13,7 +13,7 @@ TIP: Asciidoctor supports including content from a URI out of the box if you set
 :source-highlighter: coderay
 
 .Gemfile
-[source,ruby]
+[,ruby]
 ----
 \include::https://cdn.jsdelivr.net/gh/asciidoctor/asciidoctor/Gemfile[]
 ----
@@ -21,7 +21,7 @@ TIP: Asciidoctor supports including content from a URI out of the box if you set
 
 == UriIncludeProcessor
 
-[source,ruby]
+[,ruby]
 ----
 class UriIncludeProcessor < Asciidoctor::Extensions::IncludeProcessor
   def handles? target
@@ -38,7 +38,7 @@ end
 
 == Usage
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do
   include_processor UriIncludeProcessor
diff --git a/docs/modules/extensions/pages/inline-macro-processor.adoc b/docs/modules/extensions/pages/inline-macro-processor.adoc
index cb28f628..a2d0628a 100644
--- a/docs/modules/extensions/pages/inline-macro-processor.adoc
+++ b/docs/modules/extensions/pages/inline-macro-processor.adoc
@@ -6,14 +6,14 @@ Create an inline macro named `man` that links to another man page.
 
 == sample-with-man-link.adoc
 
-[source,asciidoc]
+[,asciidoc]
 ----
 See man:gittutorial[7] to get started.
 ----
 
 == ManpageInlineMacro
 
-[source,ruby]
+[,ruby]
 ----
 class ManInlineMacro < Asciidoctor::Extensions::InlineMacroProcessor
   use_dsl
@@ -41,7 +41,7 @@ end
 
 == Usage
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do
   inline_macro ManInlineMacro
diff --git a/docs/modules/extensions/pages/postprocessor.adoc b/docs/modules/extensions/pages/postprocessor.adoc
index 130ca547..cba64734 100644
--- a/docs/modules/extensions/pages/postprocessor.adoc
+++ b/docs/modules/extensions/pages/postprocessor.adoc
@@ -6,7 +6,7 @@ Insert copyright text in the footer.
 
 == CopyrightFooterPostprocessor
 
-[source,ruby]
+[,ruby]
 ----
 class CopyrightFooterPostprocessor < Asciidoctor::Extensions::Postprocessor
   def process document, output
@@ -25,7 +25,7 @@ end
 
 == Usage
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do
   postprocessor CopyrightFooterPostprocessor
diff --git a/docs/modules/extensions/pages/preprocessor.adoc b/docs/modules/extensions/pages/preprocessor.adoc
index 83c48026..0465773e 100644
--- a/docs/modules/extensions/pages/preprocessor.adoc
+++ b/docs/modules/extensions/pages/preprocessor.adoc
@@ -50,7 +50,7 @@ content
 
 === FrontMatterPreprocessor
 
-[source,ruby]
+[,ruby]
 ----
 class FrontMatterPreprocessor < Asciidoctor::Extensions::Preprocessor
   def process document, reader
@@ -80,7 +80,7 @@ end
 
 === Usage
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do
   preprocessor FrontMatterPreprocessor
diff --git a/docs/modules/extensions/pages/register.adoc b/docs/modules/extensions/pages/register.adoc
index 468398ef..d2ca56ef 100644
--- a/docs/modules/extensions/pages/register.adoc
+++ b/docs/modules/extensions/pages/register.adoc
@@ -4,7 +4,7 @@
 
 These extensions are registered per document using a callback that feels like a DSL:
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do |document|
   preprocessor FrontMatterPreprocessor
diff --git a/docs/modules/extensions/pages/tree-processor.adoc b/docs/modules/extensions/pages/tree-processor.adoc
index 39fedff9..23add3bf 100644
--- a/docs/modules/extensions/pages/tree-processor.adoc
+++ b/docs/modules/extensions/pages/tree-processor.adoc
@@ -17,7 +17,7 @@ Detect literal blocks that contain shell commands, strip the prompt character an
 
 === sample-with-shell-session.adoc
 
-[source,asciidoc]
+[,asciidoc]
 ----
  $ echo "Hello, World!"
  > Hello, World!
@@ -27,7 +27,7 @@ Detect literal blocks that contain shell commands, strip the prompt character an
 
 === ShellSessionTreeProcessor
 
-[source,ruby]
+[,ruby]
 ----
 class ShellSessionTreeProcessor < Asciidoctor::Extensions::TreeProcessor
   LF = ?\n
@@ -60,7 +60,7 @@ end
 
 === Usage
 
-[source,ruby]
+[,ruby]
 ----
 Asciidoctor::Extensions.register do
   tree_processor ShellSessionTreeProcessor