Hi,
When you create a hyperlink in a Writer document (LibreOffice or
OpenOffce.org), the language is explicitly set to "zxx" by default
(this is shown in the statusbar as "[None]"). In order to identify
the language of a hyperlink, you need to explicitly set it by
selecting the link and picking a language.
The cause seems to be a default in Writer. When you unpack an ODT
file and inspect the file "styles.xml", you will find the following lines:
<style:style style:name="Internet_20_link"
style:display-name="Internet link" style:family="text">
<style:text-properties fo:color="#000080" fo:language="zxx"
fo:country="none" style:text-underline-style="solid"
style:text-underline-width="auto"
style:text-underline-color="font-color" style:language-asian="zxx"
style:country-asian="none" style:language-complex="zxx"
style:country-complex="none"/>
</style:style>
The relevant attributes here are
* fo:language="zxx" fo:country="none"
* style:language-asian="zxx" style:country-asian="none"
* style:language-complex="zxx" style:country-complex="none"
It is unclear to me why these defaults exist. I could not find
anything in the ODF 1.2 specification that justifies their existence.
Some background from that specification (notably section 16.2<style:style>):
"Styles defined by the <style:style> element use a hierarchical style
model. The <style:style> element supports inheritance of formatting
properties by a style from its parent style. A parent style is
specified by the style:parent-style-name attribute on a <style:style> element."
(Note that the style:style element for hyperlinks does not have a
style:parent-style-name attribute.)
"For styles with family text which are applied to elements which are
contained in another element that specifies a style with family text,
the search continues within the text style that is applied to the
nearest ancestor element that specifies a style with family text, and
continues in its parent styles."
Based on this I would expect hyperlinks to inherit language
properties from the paragraph within which it is contained. In my
test document, they would inherit
* fo:language="en" fo:country="GB"
* style:language-asian="zh" style:country-asian="CN"
* style:language-complex="ar" style:country-complex="SA"
(I always enable East-Asian and CTL in Writer, and set the default
language for Asian languages to "Chinese (simplified)".)
However, the default hyperlink styles appear to prevent this.
Authors usually forget to set the language of hyperlinks, so I would
be in favour of removing the defaults that set the language of
hyperlink text to "zxx" / "[None]".
Best regards,
Christophe
--
Christophe Strobbe
K.U.Leuven - Dept. of Electrical Engineering - SCD
Research Group on Document Architectures
Kasteelpark Arenberg 10 bus 2442
B-3001 Leuven-Heverlee
BELGIUM
tel: +32 16 32 85 51
http://www.docarch.be/
Twitter: @RabelaisA11y
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