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From: "Ulrich Müller" <ulm@gentoo.org>
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Reply-To: gentoo-dev@lists.gentoo.org, "Ulrich Müller" <ulm@gentoo.org>
Message-ID: <1578387182.200818b99d2f874ad9e885861704a53d29f4e619.ulm@gentoo>
Subject: [gentoo-commits] proj/devmanual:master commit in: /
X-VCS-Repository: proj/devmanual
X-VCS-Files: devbook.xsl
X-VCS-Directories: /
X-VCS-Committer: ulm
X-VCS-Committer-Name: Ulrich Müller
X-VCS-Revision: 200818b99d2f874ad9e885861704a53d29f4e619
X-VCS-Branch: master
Date: Thu,  9 Jan 2020 07:34:58 +0000 (UTC)
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commit:     200818b99d2f874ad9e885861704a53d29f4e619
Author:     Ulrich Müller <ulm <AT> gentoo <DOT> org>
AuthorDate: Fri Jan  3 19:11:04 2020 +0000
Commit:     Ulrich Müller <ulm <AT> gentoo <DOT> org>
CommitDate: Tue Jan  7 08:53:02 2020 +0000
URL:        https://gitweb.gentoo.org/proj/devmanual.git/commit/?id=200818b9

devbook.xsl: ID attributes should contain only valid characters.

Keep only characters that HTML 4 allows in ID attributes (but exclude
the colon as well). Note that HTML 5 is more sloppy and would permit
characters outside of the ASCII range, but these won't be valid in URI
fragment identifiers (RFC 3986).

Signed-off-by: Ulrich Müller <ulm <AT> gentoo.org>

 devbook.xsl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/devbook.xsl b/devbook.xsl
index 2a5dea2..9d3d5f0 100644
--- a/devbook.xsl
+++ b/devbook.xsl
@@ -280,7 +280,10 @@
     <xsl:param name="data"/>
     <xsl:variable name="lcletters">abcdefghijklmnopqrstuvwxyz--</xsl:variable>
     <xsl:variable name="ucletters">ABCDEFGHIJKLMNOPQRSTUVWXYZ<xsl:text> </xsl:text>,</xsl:variable>
-    <xsl:value-of select="translate(normalize-space($data),$ucletters,$lcletters)"/>
+    <xsl:variable name="lcdata" select="translate(normalize-space($data), $ucletters, $lcletters)"/>
+    <!-- Delete anything but letters, digits, hyphen, dot, underscore -->
+    <xsl:variable name="allowed">abcdefghijklmnopqrstuvwxyz0123456789-._</xsl:variable>
+    <xsl:value-of select="translate($lcdata, translate($lcdata, $allowed, ''), '')"/>
   </xsl:template>
 
   <xsl:template match="uri">