Files

The structure mentioned above has been implemented in a number of files, which reside in the xslt subfolder of the ITP/OnLine installation. This folder contains the following subfolders:

• Custom, this is the only folder with files that may be modified. Declaration (and implementation) of a customizable template in one of these files implies that the template has been overridden. The file defaults.xsl is responsible for selecting an implementation of the defaults from the subfolder Defaults.
• Defaults, this folder contains the defaults as described above. These are implemented in the file defaults.xsl, which resides in a further subfolder. Currently, there is one subfolder named table_oriented, which produces the old table-oriented output, and one subfolder named div_oriented, which produces the new output described in the next chapter.

At top level there are four files implementing the layers mentioned above:

• varsandparams.xsl for parameters and variables.
• support.xsl for the support library.
• navigation.xsl for the navigation layer.
• overridable.xsl for the customization layer.

The last file is interact.xsl, which is the main xsl-file. This file imports the other templates. It is applied to the XForms by ITP/OnLine.

The interact.xsl calls templates from navigation.xsl which in turn calls templates implemented in overridable.xsl. These templates can be overridden by simply implementing them in one of the custom\*.xsl files. The implementation of those templates in one of the custom\*.xsl files may call the _default templates from the defaults\*.xsl files. By default the code, which is commented in the custom\*.xsl files, calls the corresponding templates in default\*.xsl files.

Appendix B contains an example of the above for the customizations presented in the Example below.

Note:

One may be tempted to implement overrides by modifying the overridable.xsl. This is not the intended use, define overrides in the files in the custom subfolder, instead.