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Subject: Re: [docbook-apps] Odd Characters in UTF-8, Docbook 5.1


There are two steps to the font assignment process: 1) configuring fop’s fonts and 2) setting DocBook parameters to call the fonts you have configured in fop.

In this case, the mapping between serif and Times (and sans-serif and Helvetica) happens in the fop configuration file, fop.xconf.

So, when you set the DocBook parameter to sans-serif, fop defaults to Helvetica. If you want sans-serif to default to something else, or if you want to add a font, you need to change the configuration in fop.xconf. Once you have configured fop to recognize a font, you can refer to it from the DocBook parameters using the name you have associated with the font in fop.xconf. If you look in your fop.xconf file, you will find that the definition for Times contains several instances of the <font-triplet> element, each of which defines a name you can use for that font, along with information about style and weight.

This page has some information on configuring the fop.xconf file for fonts:


Best regards,
Dick Hamilton
XML Press
XML for Technical Communicators

> On Feb 1, 2017, at 11:53, stimits@comcast.net wrote:
> Hi,
> I tested this by changing body.font.family to sans-serif. The document did successfully switch, and used Helvetica. Unfortunately, Helvetica also lacks the box drawing characters. Is there a configuration file used for a given Docbook 5.1 installation which maps "Times Roman" to serif, and "Helvetica" to sans-serif? I think this is the key to getting those box drawing characters to work...perhaps if I can remap serif and sans-serif to valid fonts other than Helvetica and Times Roman it would work with those characters.
> Thanks!
> ----- Original Message -----
> From: Bob Stayton <bobs@sagehill.net>
> To: stimits@comcast.net, docbook-apps@lists.oasis-open.org
> Sent: Wed, 01 Feb 2017 18:51:04 -0000 (UTC)
> Subject: Re: [docbook-apps] Odd Characters in UTF-8, Docbook 5.1
> Hi,
> If by system-wide you mean everyone sharing one DocBook XSL 
> installation, you could edit the parameters file for that installation. 
> Find the file named fo/param.xsl and change these stylesheet parameters:
> <xsl:param name="body.font.family">serif</xsl:param>
> <xsl:param name="title.font.family">sans-serif</xsl:param>
> All of the stylesheet params are documented here:
> http://docbook.sourceforge.net/release/xsl/current/doc/fo/index.html
> Bob Stayton
> Sagehill Enterprises
> bobs@sagehill.net
> On 2/1/2017 10:22 AM, stimits@comcast.net wrote:
> > I just wanted to add some information from reading build logs for the
> > document. It turns out the error shows up under "fop" because the
> > particular font does not support this character (I'm surprised
> > Times-Roman does not have this by default since just about every
> > application on the system has the character):
> > WARNING: Glyph "├" (0x251c, SF080000) not available in font "Times-Roman".
> >
> > The trouble here is I now want to change this for the system as a whole,
> > not just on the document (I want to avoid any project using
> > Times-Roman). I am curious if there is some simple way under Linux to
> > find out which fonts fop has available, and how to change the default
> > font family for all Docbook publishing via a system-wide setting? I've
> > found many documents on modifying Docbook behavior within source code,
> > but not much seems to exist on system-wide Docbook configuration from a
> > system administrator's point of view...if anyone has a URL for
> > information on specifics of tuning Docbook defaults under Linux I'd be
> > very happy!
> >
> > Thanks!
> >
> > ----- Original Message -----
> > From: stimits@comcast.net
> > To: docbook-apps@lists.oasis-open.org
> > Sent: Tue, 31 Jan 2017 23:20:24 -0000 (UTC)
> > Subject: [docbook-apps] Odd Characters in UTF-8, Docbook 5.1
> > Hi,
> >
> > I'm working on a Linux machine which has UTF-8 encoding. The docbook 5.1
> > I'm working with is declared:
> > <?xml version="1.0" encoding="utf-8"?>
> > <!DOCTYPE book [
> > <!ENTITY version "0.1 unreleased">
> > ]>
> >
> > Entities changed a while back (relaxng changed things), but so far as I
> > know I should still be able to work with numeric entities when using odd
> > characters which are part of UTF-8. I'm trying to get some box drawing
> > characters to work, specifically because I need to illustrate a file
> > directory structure which has been output like this from the "tree -d"
> > command. Here's a short sample:
> >> tree -d -L 2 /etc | tail -n 20 | tail -n 6
> > │ ├── pluginconf.d
> > │ ├── protected.d
> > │ └── vars
> > └── yum.repos.d
> >
> > As you can see the vertical and horizontal box drawing characters are
> > used. When I redirect this to a file or copy and paste into the document
> > all I get is a substitute...each shows as "#". So I tried to use numeric
> > entities instead. As an example "boxh" (horizontal box line) should work
> > as "&#x2500;". This does not work, and rendering still ends up as "#". I
> > tried the numeric code for the plus/minus character, "|&#x00B1;|", and
> > this does work. I don't know if it proves anything, but since my UTF-8
> > terminal shows all of the above characters just fine on a terminal, it
> > seems like the ability to output is not in question...perhaps this is an
> > invalid assumption.
> >
> > Btw, one reference on the Unicode numeric value is from:
> > http://www.oasis-open.org/docbook/documentation/reference/html/iso-box.html
> >
> > Under Docbook 5.1, what do I need to do to use this numeric entity other
> > than using UTF-8 and the numeric entity syntax? Is there an additional
> > XML declaration I need?
> >
> > Thanks!

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