DataBasic Elements

This section describes the elements of the DataBasic language including: statements, labels, comments, blank spaces, program item-ids, subroutines and reserved words, literals, symbols and variables, assignment to variables, and arrays. It goes on to discuss more complex elements including: THEN/ELSE and ON ERROR conditional clauses, format strings, conversion codes, execution and item locks, dimensioned and dynamic arrays, and the use of indexes.

• Program Elements.

• Subroutines.

• Including Common Code.

• Literals, Symbols and Variables.

• Assignments.

• Arithmetic Expressions

• String Expressions and Concatenation.

• Substring Extraction.

• Substring Assignment.

• Relational Expressions.

• Logical Expressions.

• Bitwise Logical Functions.

• Assignment Operators.

• Object Operators

• Using the THEN/ELSE and ON ERROR Clauses.

• Format Strings.

• Conversions.

• Execution and Item Locks.

• Introducing Arrays.

• Dimensioned Arrays.

• Dynamic Arrays.

• Dynamic Arrays vs. Dimensioned Arrays.

• Special Methods

• Using Indexes.