[RFC/NOPATCHv3 2/4] doc: add linkgit macros for asciidoctor

[Felipe Contreras <felipe.contreras@gmail.com>]

From: "brian m. carlson" <sandals@crustytoothpaste.net>

We also need to update the code that tells Asciidoctor how to format our
linkgit macros so that it can output proper code for man pages.  Be
careful to reset the font to the previous after the change.  In order to
do so, we must reset to the previous after each font change so the
previous state at the end is the state before our inserted text, since
troff only remembers one previous font.  We insert \e before each
font-change backslash so Asciidoctor doesn't convert them into \*(rs,
the reverse solidus character, and instead leaves them as we wanted
them.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 Documentation/asciidoctor-extensions.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/asciidoctor-extensions.rb b/Documentation/asciidoctor-extensions.rb
index d906a00803..620b3d7a88 100644
--- a/Documentation/asciidoctor-extensions.rb
+++ b/Documentation/asciidoctor-extensions.rb
@@ -15,6 +15,8 @@ module Git
           "#{target}(#{attrs[1]})</ulink>"
         elsif parent.document.basebackend? 'html'
           %(<a href="#{prefix}#{target}.html">#{target}(#{attrs[1]})</a>)
+        elsif parent.document.basebackend? 'manpage'
+          %(\e\\fB#{target}\e\\fP\e\\fR(#{attrs[1]})\e\\fP)
         elsif parent.document.basebackend? 'docbook'
           "<citerefentry>\n" \
             "<refentrytitle>#{target}</refentrytitle>" \
-- 
2.32.0