linux-kernel - [PATCH v3 8/9] docs: pdfdocs: Teach xeCJK about character classes of quotation marks

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Message-ID: <710d146e-dab1-4782-6332-8d10bf362178@gmail.com>
Date:   Mon, 2 Aug 2021 18:59:02 +0900
From:   Akira Yokosawa <akiyks@...il.com>
To:     Jonathan Corbet <corbet@....net>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        "Wu X.C." <bobwxc@...il.cn>, SeongJae Park <sj38.park@...il.com>,
        Hu Haowen <src.res@...il.cn>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, Akira Yokosawa <akiyks@...il.com>
Subject: [PATCH v3 8/9] docs: pdfdocs: Teach xeCJK about character classes of
 quotation marks

Quotation marks in "KR" and "JP" variants of Noto CJK fonts are half
width.
xeCJK assumes they are full width by default and does excessive kerning
around them in Korean and Japanese translations.

Give xeCJK proper hints by the \xeCJKDeclareCharClass command.

Signed-off-by: Akira Yokosawa <akiyks@...il.com>
---
 Documentation/conf.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/conf.py b/Documentation/conf.py
index c4813e51dbc9..846d57eba57c 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -425,6 +425,8 @@ latex_elements['preamble']  += '''
 	\\newcommand{\\kerneldocEndTC}{\\endgroup}
 	\\newcommand{\\kerneldocBeginKR}{%
 	    \\begingroup%
+	    \\xeCJKDeclareCharClass{HalfLeft}{`“,`‘}%
+	    \\xeCJKDeclareCharClass{HalfRight}{`”,`’}%
 	    \\krmain%
 	    \\renewcommand{\\CJKrmdefault}{KRserif}%
 	    \\renewcommand{\\CJKsfdefault}{KRsans}%
@@ -434,6 +436,8 @@ latex_elements['preamble']  += '''
 	\\newcommand{\\kerneldocEndKR}{\\endgroup}
 	\\newcommand{\\kerneldocBeginJP}{%
 	    \\begingroup%
+	    \\xeCJKDeclareCharClass{HalfLeft}{`“,`‘}%
+	    \\xeCJKDeclareCharClass{HalfRight}{`”,`’}%
 	    \\jpmain%
 	    \\renewcommand{\\CJKrmdefault}{JPserif}%
 	    \\renewcommand{\\CJKsfdefault}{JPsans}%
-- 
2.17.1