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Indeed. There is no way to avoid at least some platform specific code. There should be less of that for the UNIX family, but Windows is another story. I've finished writing an API for retrieving the baud rates that the platform supports and the list of serial port devices currently known to the syst...

If all else fails you can embed the files into the source code as symbols via [text][/text] blocks. You could put these in external modules. newLISP may embed all the modules loaded via the load function, but I am not heavily familiar with how this feature works. As a last resort, you could create a...

I have noticed there are no APIs in newLISP for this fairly common piece of hardware. I have written a working prototype of this functionality that works for the newLISP Linux version. Hopefully it will also work with other UNIX platforms. I was wondering if there was anyway to get this module incor...

I can't give much of a "real world" example as the functionality doesn't exist yet. But I can give a theoretical example similar to what I had in mind. It will not be for a real C API, as it is just an illustration of the syntax I wanted to make possible. ; void *fooCreate(); ; void fooAddCallback(v...

I have prepared a brief patch for adding a way to construct a newLISP cell from a pointer to an existing cell. I would prefer to make it a reference to the original cell instead of it getting garbage collected when the symbol's scope ends, but I did not see any easy way to do this. Instead, I wrote ...

This leads me to believe that the best option is to use a C intermediate layer. That way I can bypass the lack of low level access I don't have from newLISP for this single purpose.

I have something very specific I wish to do with a C library's function callbacks. It has an object-like design, and I would like to make the user data pointer I feed to the library be able to take a pointer to a newLISP object. I used the address function on the object's list of properties, but I c...

Let me see if I understand this. newLISP cells are internally composed of: an integer to track the type a linked list pointer 1st part of integer/floating point or string length 2nd part of integer/floating point or string or symbol address So, a newLISP list is implemented as a linked list with eac...

I didn't think this would be an issue as C has very limited mechanisms for automated functions compared to C++, but I found a solution. I checked the DLL's dependency list, and noted that DLLs without libgcc seemed to work just fine. I tried linking with libgcc statically and newLISP no longer has a...

I have tried to get newLISP to load a libnewt.dll, but the interpreter has issues upon exit. It seems to happen when the DLL is unloaded. The entire DLL was compiled by GCC 4.8.1 from the mingw32 build system. Any ideas? The error is like so: This application has requested the Runtime to terminate i...

Indeed. I'm working on an object layer for the widgets using the FOOP system. I'm also seeing if I can get NEWT to work on Windows at all. The library it uses for console control has a windows port, but I'm not sure if NEWT will work on a non-POSIX platform.

It has taken me several days, but I have carefully converted NEWT's C API so you can access most of it from newLISP. The main thing I could not find a way to map is C variadic functions. But those are mainly used for convenience functions in NEWT. For those who do not know what NEWT is, it is an old...

I find there is a lack of C API functions for dereferencing non-aggregate pointer types. There already exist enough of them to write workarounds for the missing functionality, but I think these should be builtin so we don't have to resort to such hacks to get a basic feature. What I think would good...

Basically you need to dereference the pointer and apply pointer arithmetic. It's doable from newLISP, but this requires behavior which is tied to the size of pointers for the platform the interpreter is running on. For the platforms I know of, you need to know this: 32 bit X86 is 4 bytes and require...

I have noticed that there already exists functions to import C functions at runtime. Does there currently exist a program which can automate most of the conversion of a C header to the appropriate syntax in newLISP? I have already done some searching, but I have yet to find anything conclusive. I ma...

According to the documentation, there appears to be only a single directory from which modules are loaded by default. The environment variable "NEWLISPDIR" is used for this purpose. It appears to me that, if you want to load it from "many directories", you will need to implement it yourself. There a...

I've used C and Shell Script for about 5 years. I'm by no means a master of every detail of these languages. I have tried python, but found it to be just plain boring. Nothing challenging or interesting about it for me. I've read about Lisp in the past. It's always been portrayed as some kind of sup...

Although I am new to newlisp, I have experience with C. I believe the problem you are having is that the function you are trying to call expects a "pointer" to the struct. The struct must be allocated somewhere in memory first, and then you need to feed the address of the instance of that struct to ...