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#### Syntax diagrams

All elements of the pascal language are explained in syntax diagrams. Syntax diagrams are like flow charts. Reading a syntax diagram means getting from the left side to the right side, following the arrows. When the right side of a syntax diagram is reached, and it ends with a single arrow, this means the syntax diagram is continued on the next line. If the line ends on 2 arrows pointing to each other, then the diagram is ended.

Syntactical elements are written like this
Keywords which must be typed exactly as in the diagram:
When something can be repeated, there is an arrow around it:
When there are different possibilities, they are listed in columns:
Note, that one of the possibilities can be empty:
This means that both the first or second possibility are optional. Of course, all these elements can be combined and nested.

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