man: include the target name when linking to man pages in html output

Links like http://www.freedesktop.org/software/elogind/man/elogind.socket.html
are changed to http://www.freedesktop.org/software/elogind/man/elogind.socket.html#Accept=.

This implementation is quick & dirty, and misses various corner
cases. A fairly important one is that when a few directives share the
same anchor (which happens when multiple directives are described in
the same paragraph), generated links for everything except the first
one link to an invalid anchor. Another shortcoming is that the
formatting does not use the proper generateID machinery, so the anchor
name could be wrong in some cases. But it seems to work for a large
percentage of links, so seems to be an improvement in usability. When
the anchor is missing, we land at the top of the page, which is the
same as before. If the anchor were to point to different spot, this
would be more confusing... Not sure if that ever happens. Anyway, the
user should be able to recover from landing on the wrong place in the
page.

(Mostly) fixes https://github.com/elogind/elogind/issues/1956.

diff --git a/man/custom-html.xsl b/man/custom-html.xsl
index 73a643b414a42d85bbb77e17f2b15ae54ed012d3..545f4b306e3163ecbe4f1655d849bda8f2a28d4f 100644 (file)
--- a/man/custom-html.xsl
+++ b/man/custom-html.xsl
@@ -37,7 +37,8 @@
 <xsl:template match="citerefentry[not(@project)]">
   <a>
     <xsl:attribute name="href">
-      <xsl:value-of select="refentrytitle"/><xsl:text>.html</xsl:text>
+      <xsl:value-of select="refentrytitle"/><xsl:text>.html#</xsl:text>
+      <xsl:value-of select="refentrytitle/@target"/>
     </xsl:attribute>
     <xsl:call-template name="inline.charseq"/>
   </a>

diff --git a/tools/make-directive-index.py b/tools/make-directive-index.py
index 5abcac84d032dc5395bf560857e4d36c490de23e..193f7416f7eec55852850a256f15f36adf5d36a7 100755 (executable)
--- a/tools/make-directive-index.py
+++ b/tools/make-directive-index.py
@@ -195,6 +195,7 @@ def _make_section(template, name, directives, formatting):
             b = tree.SubElement(para, 'citerefentry')
             c = tree.SubElement(b, 'refentrytitle')
             c.text = manpage
+            c.attrib['target'] = varname
             d = tree.SubElement(b, 'manvolnum')
             d.text = manvolume
         entry.tail = '\n\n'