5 Medic by Example

This section covers several small examples to help to learn the syntax of the Medic language and the use of the Medic debugging tool. Each example contains a source program and a medic program. Assuming that the source program, src.rkt, is the entry point of the program, that the medic program is src-medic.rkt, and that the source program, medic program, and program-starting script are stored in the same directory, we can start debugging by the following program-starting script:

#lang racket
(require medic/core)
(medic "src-medic.rkt")
(debug "src.rkt")

We can also run program-starting scripts in the console window of the DrRacket programming environment. To best locate the files, complete paths of programs—depending on the stored location—should be supplied.

(require medic/core)

(medic "/home/xiangqi/medic/demos/src-medic.rkt")

(debug "/home/xiangqi/medic/demos/src.rkt")

The following are the demos:

5.1 Demo 1: border-expr and at-expr

5.2 Demo 2: at-expr

5.3 Demo 3: multiple functions scope

5.4 Demo 4: with-behavior

5.5 Demo 5: def, import and export

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1	A Metaprogramming Language
2	Medic Tracing
3	Evaluation
4	Using the Medic Debugger
5	Medic by Example

5.1	Demo 1: border-expr and at-expr
5.2	Demo 2: at-expr
5.3	Demo 3: multiple functions scope
5.4	Demo 4: with-behavior
5.5	Demo 5: def, import and export