[RFC PATCH v2 3/7] docs: pdfdocs: Use one-half spacing in CJK translations

[Akira Yokosawa <akiyks@gmail.com>]

CJK documents are much easier to read with a wider baseline stretch.
Applying onehalfspacing option of the "setspace" package gives a
reasonable result.

The wider baseline is effective between \kerneldocCJKon and
\kerneldocCJKoff.

Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
---
 Documentation/conf.py                      | 7 +++++--
 Documentation/translations/ja_JP/howto.rst | 8 ++++++++
 Documentation/translations/ko_KR/howto.rst | 8 ++++++++
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/Documentation/conf.py b/Documentation/conf.py
index a61628339d55..23d647881f6e 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -374,8 +374,9 @@ latex_elements['preamble']  += '''
 	\\newCJKfontfamily[JPsans]\\jpsans{Noto Sans CJK JP}
 	\\newCJKfontfamily[JPmono]\\jpmono{Noto Sans Mono CJK JP}
 	% Define custom macros to on/off CJK
-	\\newcommand{\\kerneldocCJKon}{\\makexeCJKactive}
-	\\newcommand{\\kerneldocCJKoff}{\\makexeCJKinactive}
+	\\usepackage{setspace}
+	\\newcommand{\\kerneldocCJKon}{\\makexeCJKactive\\onehalfspacing}
+	\\newcommand{\\kerneldocCJKoff}{\\makexeCJKinactive\\singlespacing}
 	\\newcommand{\\kerneldocBeginSC}{%
 	    \\begingroup%
 	    \\scserif%
@@ -398,6 +399,8 @@ latex_elements['preamble']  += '''
 	    \\renewcommand{\\CJKttdefault}{JPmono}%
 	    }
 	\\newcommand{\\kerneldocEndJP}{\\endgroup}
+	% Single spacing in literal blocks
+	\\fvset{baselinestretch=1}
 	% To customize \\sphinxtableofcontents
 	\\usepackage{etoolbox}
 	% Inactivate CJK after tableofcontents
diff --git a/Documentation/translations/ja_JP/howto.rst b/Documentation/translations/ja_JP/howto.rst
index 73ebdab4ced7..d667f9d8a02a 100644
--- a/Documentation/translations/ja_JP/howto.rst
+++ b/Documentation/translations/ja_JP/howto.rst
@@ -1,3 +1,7 @@
+.. raw:: latex
+
+	\kerneldocCJKoff
+
 NOTE:
 This is a version of Documentation/process/howto.rst translated into Japanese.
 This document is maintained by Tsugikazu Shibata <tshibata@ab.jp.nec.com>
@@ -11,6 +15,10 @@ try to update the original English file first.
 
 ----------------------------------
 
+.. raw:: latex
+
+	\kerneldocCJKon
+
 この文書は、
 Documentation/process/howto.rst
 の和訳です。
diff --git a/Documentation/translations/ko_KR/howto.rst b/Documentation/translations/ko_KR/howto.rst
index a2bdd564c907..e3cdf0c84892 100644
--- a/Documentation/translations/ko_KR/howto.rst
+++ b/Documentation/translations/ko_KR/howto.rst
@@ -1,3 +1,7 @@
+.. raw:: latex
+
+	\kerneldocCJKoff
+
 NOTE:
 This is a version of Documentation/process/howto.rst translated into korean
 This document is maintained by Minchan Kim <minchan@kernel.org>
@@ -11,6 +15,10 @@ try to update the original English file first.
 
 ----------------------------------
 
+.. raw:: latex
+
+	\kerneldocCJKon
+
 이 문서는
 Documentation/process/howto.rst
 의 한글 번역입니다.
-- 
2.17.1