InterdocJanuary 21, 1982

Features of the Interdoc base language

Heading

Literals

Boolean, string, int, hex int, real

Follows Interpress closely

Nodes *

Contents and labels

Marks *, source and target links

Bindings *

Global, local, constant, persistent, var

Expressions

Operators, conditionals, functions, environments *

Semantic model *

Parse tree, node: environment, contents, labels

InterdocJanuary 21, 1982

script ::= versionId item

item::= content | binding | label

content ::= literal | . . . | node

Nodes

Principal means for recording structure
(Dominant Hierarchy)

Also used to indicate scope (of bindings and labels)

ThirdHead

FourthLevel

InterdocJanuary 21, 1982

MajorHead

SecondHead

ThirdHead

FourthLevel

InterdocJanuary 21, 1982

MajorHead

SecondHead

ThirdHead

FourthLevel

InterdocJanuary 21, 1982

MajorHead

SecondHead

ThirdHead

FourthLevel

InterdocJanuary 21, 1982

MajorHead

SecondHead

ThirdHead

FourthLevel

InterdocJanuary 21, 1982

MajorHead

SecondHead

ThirdHead

FourthLevel

InterdocJanuary 21, 1982

MajorHead

SecondHead

ThirdHead

FourthLevel

InterdocJanuary 21, 1982

MajorHead

SecondHead

ThirdHead

FourthLevel