Re: [docbook-apps] Multiple languages in PDF?

["M. Downing Roberts" <mgaq1186@g.ecc.u-tokyo.ac.jp>]

Following up on this: Bob Stayton has helped to diagnose the issue and it appears to be a limitation with the current support for indexing in docbook-xsl.

It works for indexes in a single language, but doesn't completely work for trying to build several indexes, each in different languages (e.g., separate indexes in English and Japanese). The issue is being tracked as #238 on GitHub.

Since I'm working against a deadline, I wrote a Smalltalk app to read the FO file, generate an index in Japanese as FO-XML, and then write out a new FO file before invoking FOP. Not ideal, but it works.

Thanks again for your collective help with this issue,

M.

On Mon, Jan 3, 2022 at 5:28 AM Kevin Dunn <kdunn@hsc.edu> wrote:

I'll put in a plug for AH Formatter. I love open-source tools, and use them when I can. But after fighting with FOP for a while, only to discover repeatedly that it didn't implement the

features I needed, I downloaded the free trial versions of AH Formatter and RenderX XEP. Both were much more powerful and easier to configure than FOP. XEP is the less expensive of the two, but ultimately the AHF extensions won me over, and I bought it. If your time is at all valuable, you should spend a couple of days with the free trial versions to see what they can do for you.

That said, I was able to get multiple indexes using the method on p 312 of DBTCG. It works in both AHF and FOP. I have not tried using different fonts in the different indexes.

Kevin

---

From: M. Downing Roberts <mgaq1186@g.ecc.u-tokyo.ac.jp>
Sent: Sunday, January 2, 2022 7:33 AM
To: docbook-apps@lists.oasis-open.org <docbook-apps@lists.oasis-open.org>
Subject: Re: [docbook-apps] Multiple languages in PDF?

Â

Hi,

ThanksÂfor your suggestions. I know AH is better but alas, I am using FOP.

Still stuck,

M.

On Sun, Jan 2, 2022 at 7:10 PM Tony Graham <tgraham@antenna.co.jp> wrote:

On 02/01/2022 02:26, M. Downing Roberts wrote:
...
> Another, simpler point I'm stuck on: I need to select a different font
> for the Japanese index,Âi.e., I need to detect @type='ja' in the <index>
> element and switch fonts.

If you are using AH Formatter, you can map the generic font family names
to specific fonts per script. [1]

> I tried this in my customization layer:
>
>Â Â Â<xsl:template match="indexentry">
>Â Â Â Â <xsl:choose>
>Â Â Â Â Â<xsl:when test="contains(' ja ', parent::type)">

"contains(' ja ', parent::type)" is true only when the string ' ja '
(including its space characters) contains the text content of the <type>
parent element of the <indexentry>. [1]Â There's several reasons why
that won't happen.

If you are generating <indexdiv> to group <indexterm>, then <indexterm>
isn't the parent element anyway.

One solution would be:

  <xsl:when test="ancestor::index/@type = 'ja'">

Another would be a separate template for Japanese <indexentry>, if you
would find that clearer:

<xsl:template match="indexentry[ancestor::index/@type = 'ja']">
 Â<fo:wrapper font-family="'Zen Old Mincho'">
  Â<xsl:apply-templates/>
 Â</fo:wrapper>
</xsl:template>

(fo:wrapper [3] is mostly a way to add inherited properties without
generating an extra area in the area tree.)

If your template is in a module that imports (directly or indirectly)
the usual template for <indexentry>, you can do: [4]

<xsl:template match="indexentry[ancestor::index/@type = 'ja']">
 Â<fo:wrapper font-family="'Zen Old Mincho'">
  Â<xsl:apply-imports/>
 Â</fo:wrapper>
</xsl:template>

Or you could set the font in your template for <index>:

<xsl:template match="index[@type = 'ja']">
 Â<fo:wrapper font-family="'Zen Old Mincho'">
  Â<xsl:apply-imports/>
 Â</fo:wrapper>
</xsl:template>


Regards,


Tony Graham.
--
Senior Architect
XML Division
Antenna House, Inc.
----
Skerries, Ireland
tgraham@antenna.co.jp

[1] https://www.antenna.co.jp/AHF/help/en/ahf-optset.html#script-font
[2] https://www.w3.org/TR/1999/REC-xpath-19991116/#function-contains
[3] https://www.w3.org/TR/xsl11/#fo_wrapper
[4] https://www.w3.org/TR/1999/REC-xslt-19991116#apply-imports

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