Is this the place where the overflowing viewport warnings should be fixed as 
well? I read in several postings regarding Publican that it should be adressed 
in a (not mentioned) style sheet.

Hälsningar/Regards/Grüsse,
P.O. Jonsson
oor...@jonases.se



> Am 23.02.2020 um 18:06 schrieb Gil Barmwater <gbarmwa...@alum.rpi.edu>:
> 
> Wow! I had suspected it might be possible to accomplish the blank line 
> removal by modifying the stylesheet template for the programlisting element 
> but never got around to exploring what would be required (and learning a lot 
> more XSLT). I will add this to the pdf.xsl file and give it a go.
> 
> Gil
> On 2/23/2020 11:06 AM, Erich Steinböck wrote:
>> Removal of unwanted leading/trailing whitespace from a DocBook 
>> <programlisting> element with a "fop preprocessing" script was just my bad 
>> hack and should be abandoned.
>> 
>> Please add the following code to the xsl style sheet - this should take care 
>> of what we want.  The script invocation should be removed.
>> 
>> ~~~
>> <!-- strip leading and trailing whitespace from programlisting
>>      see 
>> https://lists.oasis-open.org/archives/docbook-apps/200304/msg00334.html 
>> <https://lists.oasis-open.org/archives/docbook-apps/200304/msg00334.html>
>> -->
>> <xsl:template match="programlisting/text()">
>>   <xsl:variable name="before" select="preceding-sibling::node()"/>
>>   <xsl:variable name="after" select="following-sibling::node()"/>
>> 
>>   <xsl:variable name="conts" select="."/>
>> 
>>   <xsl:variable name="contsl">
>>     <xsl:choose>
>>       <xsl:when test="count($before) = 0">
>>         <xsl:call-template name="remove-lf-left">
>>           <xsl:with-param name="astr" select="$conts"/>
>>         </xsl:call-template>
>>       </xsl:when>
>>       <xsl:otherwise>
>>         <xsl:value-of select="$conts"/>
>>       </xsl:otherwise>
>>     </xsl:choose>
>>   </xsl:variable>
>> 
>>   <xsl:variable name="contslr">
>>     <xsl:choose>
>>       <xsl:when test="count($after) = 0">
>>         <xsl:call-template name="remove-ws-right">
>>           <xsl:with-param name="astr" select="$contsl"/>
>>         </xsl:call-template>
>>       </xsl:when>
>>       <xsl:otherwise>
>>         <xsl:value-of select="$contsl"/>
>>       </xsl:otherwise>
>>     </xsl:choose>
>>   </xsl:variable>
>> 
>>   <xsl:value-of select="$contslr"/>
>> 
>> </xsl:template>
>> 
>> 
>> <!-- eats linefeeds from the left -->
>> <xsl:template name="remove-lf-left">
>>   <xsl:param name="astr"/>
>> 
>>   <xsl:choose>
>>     <xsl:when test="starts-with($astr,'&#xA;') or
>>                     starts-with($astr,'&#xD;')">
>>       <xsl:call-template name="remove-lf-left">
>>         <xsl:with-param name="astr" select="substring($astr, 2)"/>
>>       </xsl:call-template>
>>     </xsl:when>
>>     <xsl:otherwise>
>>       <xsl:value-of select="$astr"/>
>>     </xsl:otherwise>
>>   </xsl:choose>
>> </xsl:template>
>> 
>> <!-- eats whitespace from the right -->
>> <xsl:template name="remove-ws-right">
>>   <xsl:param name="astr"/>
>> 
>>   <xsl:variable name="last-char">
>>     <xsl:value-of select="substring($astr, string-length($astr), 1)"/>
>>   </xsl:variable>
>> 
>>   <xsl:choose>
>>     <xsl:when test="($last-char = '&#xA;') or
>>                     ($last-char = '&#xD;') or
>>                     ($last-char = '&#x20;') or
>>                     ($last-char = '&#x9;')">
>>       <xsl:call-template name="remove-ws-right">
>>         <xsl:with-param name="astr"
>>           select="substring($astr, 1, string-length($astr) - 1)"/>
>>       </xsl:call-template>
>>     </xsl:when>
>>     <xsl:otherwise>
>>       <xsl:value-of select="$astr"/>
>>     </xsl:otherwise>
>>   </xsl:choose>
>> </xsl:template>
>> ~~~
>> 
>> The reason why I didn't just go through all our doc XML's and remove 
>> unwanted whitespace from <programlisting>'s, is that it not only would have 
>> been a lot of work, but it also would make the examples more difficult to 
>> read or copy/paste (for the developer, not the user) as the <programlisting> 
>> and CDATA markup would have to be all on the same line as the first line of 
>> the example.  I had changed a few examples like this, but then didn't like 
>> it at all.
>> 
>> This still leaves us with quite a bit of unwanted whitespace from our 
>> <indexterm>'s, but that's another story.
>> 
>> 
>> 
>> _______________________________________________
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>> <mailto:Oorexx-devel@lists.sourceforge.net>
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>> <https://lists.sourceforge.net/lists/listinfo/oorexx-devel>
> -- 
> Gil Barmwater
> _______________________________________________
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> Oorexx-devel@lists.sourceforge.net
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