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# Terminology

This documentation uses several fonts/styles to distinguish between different informations:

- Tcl -code.
  Tcl -code entered by the user, or created by XF is written with a typewriter font (e.g. `puts stdout test`).
- Interactive commands.
  Actions that activate functionality within XF are enclosed in () and are written in italic style. These actions are usually represented by the labels of the buttons, listboxes etc. (e.g. (Clear) when the Clear button has to be pressed, or (File | Load) when the Load menuitem in the File menu is selected).
- Shell-commands.
  Commands that are typed in the shell are enclosed in ``'' and written in italic style (e.g. ``xf -cmd wish3.3'').
- Product names etc.
  Product names and other names are written with an italic font (e.g. Tcl ).
- Other special strings.
  All other special strings are surrounded by ``'' and are written with an bold font (e.g. ``.b1''). Or they are simply written with a bold font (that depends on the context).