Tool Command Language

GEOS SDK TechDocs

1 Using This Chapter

This chapter is designed to provide information about the Tool Command Language, abbreviated Tcl, (the language in which Swat commands are written) so that new commands can be written and old commands modified. This chapter contains the following main sections:

• Using This Chapter
  Discussion of the situations warranting the construction of a new command in the Tool Command Language.
• Background and Description
  Discussion of history of Tool Command Language and general overview of the language.
• Syntax and Structure
  Description of the syntax and structure of the Tool Command Language.
• Commands
  List of all built-in commands for the language.
• Coding
  Descriptions and examples of coding conventions, techniques, and tricks.
• Installation
  Steps to take in order to be able to use a newly written command to help debug an application.

  1 Using This Chapter
  2 Copyright Information
  3 Background and Description
  4 Syntax and Structure
    4.1 Basic Command Syntax
    4.2 Expressions
    4.3 Lists
    4.4 Command Results
    4.5 Procedures
    4.6 Variables
  5 Commands
    5.1 Notation
    5.2 Built-in Commands
  6 Coding
    6.1 Swat Data Structure Commands
    6.2 Examples
  7 Using a New Command
    7.1 Compilation
    7.2 Autoloading
    7.3 Explicit Loading

GEOS SDK TechDocs

1 Using This Chapter