The following code defines a function named SPLIT which breaks up a string into elements with in a list based on the delimiter specified:
"C:\Users\ambrosl\appdata\roaming\autodesk\autocad 2017\r21.0\enu\support C:\program files\autodesk\autocad 2017\support C:\program files\autodesk\autocad 2017\support\en-us C:\program files\autodesk\autocad 2017\fonts C:\program files\autodesk\autocad 2017\help C:\program files\autodesk\autocad 2017\express C:\program files\autodesk\autocad 2017\support\color C:\Program Files\Autodesk\AutoCAD 2017\drv " The ACADPREFIX system variable returns a string that contains a listing of all the AutoCAD support paths. Commonly, the delimiter used to separate one path from another is a semi-colon ( ). When working with file paths in AutoCAD, it is common that you might need to work with a string that contains multiple paths that are separated by a delimiter.
#Autocad for mac lisp update#
Update - Sample code was revised to include some additional error handling and return some basic error messages in the case of nil being passed to the function. Hope you find this overview topic helpful, I plan on following up with future articles that dive more into specifics about each debugging technique and tool that I mentioned.
#Autocad for mac lisp windows#
Program relies on a specific folder structure or an external data/support file, such as a drawing or text file or Windows registry entries.User has an opportunity to provide input.
Potential failure points can be introduced when a: Products like Microsoft Visio or Lucidchart are designed to create flowcharts, but the same can be accomplished with Microsoft Word, PowerPoint, and other word processor and presentation products. A flowchart can also be a great way to communicate the design of a program with other that are less technical. Flowcharts make it easier to identify choices as well as potential failure points that need to be handled. If you are not already creating one today, I recommend creating a flowchart to help you visualize all the logical paths through your programs. One of the things that I have found useful in getting me to slowdown and think things through more clearly is the creation of a flowchart. While I am just as guilty for jumping in (feet, hands, and compiler first) and writing code, this approach can get you to the solution faster but can lead to some bad habits and headaches down the road. Also if it isn't broken, then why change or fix a process\approach to a solution? After many years of writing custom programs, I have learned that debugging and error handling need to be some of the very first things to consider when writing any custom program. Of course, well written code is in the eye of the developer that is look at it in the current moment. The thought of debugging and error handling doesn't come naturally to new and even seasoned developers, as most are simply focused on solving the problem at hand and not all the extra baggage that often goes with well written code. Just a simple suggestion, not something you must do. If you do plan on developing a number of AutoLISP programs, you might want to consider getting access to the Windows version of AutoCAD if you are a user of Mac OS.
#Autocad for mac lisp mac os#
Note: There are more debugging tools available on Windows than Mac OS at this time, which could change in the future. There are a number of different debugging techniques and tools that can be used to find and handle errors much easier, whether you are developing in AutoCAD on Windows or Mac OS. Although, I have tried to convince a number of people that it is very a calming and soothing activity over the years. Debugging AutoLISP programs is "A Zen like Experience," said no one ever.
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