Creating a Program
WHILE Programs can be expressed in two notations (concrete syntaxes):
- Textual
syntax (AKA Abstract, because in the textbooks, only the tree-based syntax is
referred to as concrete). In WIDE, programs in textual syntax are *.while files.
- Tree-based syntax (AKA Concrete) - *.wcl files ("while concrete list").
For more information on syntax see the
respective help items.
You can create a new WHILE-program - select: File >> New... a new dialog will appear :

- Choose the program-type you wish to create (Textual or Tree-based syntax)
- Enter the new file's name
- After clicking 'OK' the file will be opened for editing.