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Subject: Re: [docbook-apps] Re: Including a variable in an xlink:href value

Hello Janice,

Since you're using Maven, as a workaround you could use bare Maven expressions and perform Maven filtering on the source before using the docbkx plugin.

Maven filtering replaces expressions like ${project.version} with the values of their Maven properties. For example, in a 1.0.0-SNAPSHOT project, ${project.version} would be replaced with 1.0.0-SNAPSHOT. Unlike docbkx, which works on the XML, Maven filtering works with the files as if they were plain text.

In the source, no need to figure out how to embed a processing instruction inside an attribute value. Just use the Maven _expression_. In your example:
xlink:href="" href="https://mycompany.com/directory/file-name-${project.version}.tar.gz">https://mycompany.com/directory/file-name-${project.version}.tar.gz"

In the <build> of your Maven pom.xml:

Hope it helps. Regards,


On Wed, Jan 10, 2018 at 2:10 PM, Janice Manwiller <janice@sqrrl.com> wrote:
I probably should clarify that the <?eval ${project.version}?> notation is specific to the Maven docbkx plugin, which we use to generate the output.

I also tried to create an entity file containing a version entity using the info from http://www.sagehill.net/docbookxsl/Db5Entities.html. When I tried to add the DOCTYPE element to refer back to the entity file, Oxygen rejected it as not being well-formed. So I couldn't test whether I could use an entity reference to incorporate the version number in the link target.

On Thu, Jan 4, 2018 at 11:14 AM, Janice Manwiller <janice@sqrrl.com> wrote:
In my docs, I currently use <?eval ${project.version}?> to indicate to insert the current product version number into the text.

I'm adding a link to a URL that includes the version number in the file name, but if I try to include the version number variable in the link, like:

xlink:href="" href="https://mycompany.com/directory/file-name-" target="_blank">https://mycompany.com/directory/file-name-<?eval ${project.version}?>.tar.gz"

I get an error that the link cannot include the < character.

Is there any way to include the variable in the link, so that the version number portion of the URL is populated automatically? Right now I'm stuck having the link be to the enclosing directory, with the file name referred to separately:

<filename>file-name-<?eval ${project.version}?>.tar.gz</filename> in <link xlink:href="">https://mycompany.com/directory/">https://mycompany.com/directory/</link>



Janice Manwiller
Principal Technical Writer
Sqrrl Data, Inc.
www.sqrrl.com | @SqrrlData

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