Terminology.

• Step. An atomic action, which either successful, either failed.

• Process. A set of steps.

• Project. A definition of a process, options, input and output files and everything other to build the documentation.

The text refers to the variabes defined in the scons build files. These references look so:

• Simple reference: $(variable_name).

• Several variables at once: $(tmpdir)/$(filename).

• There are also functions in the form $(function parameters): $(basename $(in_file)).

Three functions are defined:

• nodir returns the file name without the directory. For example, $(nodir in/guilde.xml) results in "guide.xml".

• basename returns the file name without the directory and the extension. For example, $(basename in/guilde.xml) results in "guide".

• noext returns the file name without th extension. For example, $(noext in/guilde.xml) results in "in/guide".

Note that this syntax is used only in this Guide. Actual substitutions in the scons build files look different.