Buttons

Each DrScheme frame also contains several buttons:

• Save will save the contents of the program buffer to a file. If there is a filename to the left of this button, the contents will be saved to that name. If it says "Untitled" then you will be prompted for a filename. This button only appears when the contents of the program buffer have been modified since they were saved. Thus this button does not appear when you start DrScheme or right after you save or load a file.
• Check Syntax checks the syntax of the program buffer contents and highlights the syntax.
• Analyze opens the static debugger and invokes it on your program. This button only appears if the static debugger is installed. See the local MrSpidey Manual (if installed) or the MrSpidey webpage for more information.
• Execute first checks the syntax of the program buffer contents and, if successful, then loads the contents of the program buffer into Scheme. In other words, to define the functions and variables in the program buffer, you should use "Execute".
• Break will interrupt Scheme while it is evaluating something. Use this if your program goes into an infinite loop.
• Help will open up a help frame.