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Introduction

The Red Hat Source-NavigatorTM source code comprehension tool helps you to analyze, reuse, and develop software in C/C++, Java, Tcl, `[incr Tcl]`, FORTRAN, Cobol, and PowerPC 601 assembly language.

Source-Navigator is based on two software components: a database engine and a graphical user interface for representing information about software projects which are held in the database. Source-Navigator has been designed to permit third parties to customize and extend Source-Navigator into specific problem domains.

## Software Development Kit

With the Software Development Kit (SDK), you can:

- modify the graphical user interface (see Customization).

- write new parsers that allow Source-Navigator to support additional programing languages (see Adding Parsers).

- query the database for specific information (see Database API).

- use other applications in conjunction with Source-Navigator (see Interapplication Communication).

The graphical user interface is based on Tcl and Tk (v. 8.1). If you are not familiar with the Tcl programming language, please refer to a reference text such as Practical Programming in Tcl and Tk 1 and Tcl and the Tk Toolkit 2.

## About this Guide

This guide serves as a reference to allow the programmer to customize and extend the functionality of Source-Navigator.

### Document Conventions

Source-Navigator's documentation uses the following general conventions:

Italic Font

Indicates a new term that will be defined in the text and items called out for special emphasis.

Bold Font

Represents menus, window names, and tool buttons.

`Plain Typewriter Font
`

Denotes code fragments, contents of files, and command names; also indicates directory, file, and project names where they appear in body text.

`Italic Typewriter Font
`

Represents a variable for which an actual value should be substituted.

`Bold Typewriter Font
`

Indicates command lines, options, and text output generated by Source-Navigator.

Menu names and their submenus are separated by an arrow (->). For example, File -> Open means select the File menu and choose Open from its submenu.

Paths are written in UNIX notation (forward slashes) throughout; `.../bin` means the directory Source-Navigator is installed into, subdirectory `bin`.

1. Welch, Brent B. 1997. Practical Programming in Tcl and Tk. 2nd ed. ISBN 0-13-616830-2. Return to text

2. Ousterhout, John K. 1994. Tcl and the Tk Toolkit. ISBN 0-201-63337-X. Return to text

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