linux-kernel - [PATCH v4 8/9] docs: pdfdocs: Teach xeCJK about character classes of quotation marks

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Date:   Mon, 9 Aug 2021 10:27:18 +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 v4 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 afa085c71781..75650f6443af 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -428,6 +428,8 @@ latex_elements['preamble']  += '''
 	\\newcommand{\\kerneldocEndTC}{\\endgroup}
 	\\newcommand{\\kerneldocBeginKR}{%
 	    \\begingroup%
+	    \\xeCJKDeclareCharClass{HalfLeft}{`“,`‘}%
+	    \\xeCJKDeclareCharClass{HalfRight}{`”,`’}%
 	    \\krmain%
 	    \\renewcommand{\\CJKrmdefault}{KRserif}%
 	    \\renewcommand{\\CJKsfdefault}{KRsans}%
@@ -437,6 +439,8 @@ latex_elements['preamble']  += '''
 	\\newcommand{\\kerneldocEndKR}{\\endgroup}
 	\\newcommand{\\kerneldocBeginJP}{%
 	    \\begingroup%
+	    \\xeCJKDeclareCharClass{HalfLeft}{`“,`‘}%
+	    \\xeCJKDeclareCharClass{HalfRight}{`”,`’}%
 	    \\jpmain%
 	    \\renewcommand{\\CJKrmdefault}{JPserif}%
 	    \\renewcommand{\\CJKsfdefault}{JPsans}%
-- 
2.17.1