LiveCode CGIs – Table of Contents

Each section of this tutorial depends on the ones before it. Depending on your familiarity with CGIs and LiveCode, some sections may be hard to understand if taken out of order.

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Introduction

• What’s a CGI?
• How they work
• LiveCode advantages
• Security
• The two ways to do LiveCode CGIs
• Installing the LiveCode engine
• Setting permissions

Simple CGIs

• The structure of a CGI script
• Things to keep in mind
• First CGI: “Hello World”
• Troubleshooting Tips
• Creating files on the server
• Example: Expanded “Hello World”

Working with text files

• Example: Visitor counter
• Example: Random content

Working with stacks

• Example: Using stacks with CGIs
• Setting up the files
• Use of environment variables
• Parsing URL-encoded parameters
• Putting the stack in use
• Creating HTML from within the script

Using stacks as libraries

• Using the library command
• Advantages of the library method
• Changing the Addresses example
• The LibCGI library

Appendix: Debugging text-based CGIs

• Debugging LiveCode CGIs
• Quick Checklist
• Other Debugging Techniques
• Determining Environment Variables
• Other Online References