[LyX/master] DocBook: do a little something for Sweave & co.

[Thibaut Cuvelier]

commit afba0672d03f9d29071e504292e0113976efcd1f
Author: Thibaut Cuvelier <tcuvelier at lyx.org>
Date:   Sun Nov 15 23:54:23 2020 +0100

    DocBook: do a little something for Sweave & co.
---
 development/autotests/invertedTests |    2 ++
 lib/layouts/litinsets.inc           |    2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/development/autotests/invertedTests b/development/autotests/invertedTests
index 65933ee..437dea1 100644
--- a/development/autotests/invertedTests
+++ b/development/autotests/invertedTests
@@ -504,6 +504,8 @@ export/examples/Modules/Fancy_Colored_Boxes_docbook5
 # - Waiting for a new version of DocBook to be tagged on https://github.com/docbook/docbook (anything over 5.2b10a3).
 export/export/docbook/Localization_Test_docbook5
 export/examples/Graphics_and_Insets/Minted_Listings_docbook5
+# - Sweave and other literate-programming tools cannot be implemented properly without the LaTeX tooling.
+export/examples/Modules/Sweave_docbook5
 
 Sublabel: docbook poster
 # Posters cannot be properly exported, the LyX documents are too far from
diff --git a/lib/layouts/litinsets.inc b/lib/layouts/litinsets.inc
index 5537fc6..03c4c05 100644
--- a/lib/layouts/litinsets.inc
+++ b/lib/layouts/litinsets.inc
@@ -54,4 +54,6 @@ InsetLayout "Flex:Chunk"
     ForceOwnlines         true
     NeedCProtect          true
     EditExternal          true
+	DocBookTag            programlisting
+	DocBookAttr           role='literate-programming'
 End