Are there any OpenPGP implementations in Lua? I could only find one (https://github.com/pvthuyet/LuaOpenPGP) but it's in C++ and i need one in pure Lua. Does anyone have it?
If you can use external C libraries, you may try to use RNP lib (https://github.com/rnpgp/rnp/) via the lua's FFI: https://luajit.org/ext_ffi.html
Or, could you please explain why do you require pure Lua implementation?
Related
Does anybody know about binding two programming languages ? For example, I need to use C++ libraries in my Java code program? What is the solution? I need two different compiles, how can I bind them?
In theory it looks like it should be possible. There is: Dart-to-JavaScript compiler and even package to call JS from Dart and opposite.
But I didn't find any resources about it. Did anybody tried? Does anybody knows for sure that it is not possible?
Short answer: maybe, but I seriously doubt it's worth the effort.
To do anything useful with JavaScript, you need to write for a platform like the Web API, node.js, or GNOME in the case of GJS. Dart seems to support the Web API with its web library and its own platform with the vm library.
You might be able to write a transpiler that could transpose from a subset of Dart to GJS, but using any existing dart transpiler is probably impossible.
Suppose I have a global function called foo() which I've implemented internally outside of Lua and exposed to the user. Ideally I'd like the user's IDE to be aware of this function for things like autocomplete. The closest thing that comes to mind would be a header file for C/C++, where the function is declared without being defined.
Does Lua have any support for this?
There is no cross IDE mechanism for this in Lua.
There is no way to declare a function prototype in Lua. You can only define function values. So unless you don't provide your functions as Lua code no IDE will be able to parse them for autocompletion. So you would have to provide IDE-specific autocomplete files for your API.
Most Lua development is probably done in a simple text editor anyway.
Provide a good documentation for your API and any Lua developer using it will be happy.
As Piglet mentioned there is no out-of-the-box solution for Lua that works across all IDEs. However, I found a typed variant of Lua called Teal which has support for declaration files. Teal seems fairly analogous to Typescript.
Is there a documentation for ocropus?
I am looking for an explanation for the functions like:
make_SegmentPageByRAST():
segment()
RegionExtractor():
setPageLines()
extract()
Thank you.
A requirement of Lua API for OCRopus has been filed in the bug-tracker list of the project.
They will soon be releasing this documentation in the next beta release(expected).
First, note that you can use the command line tools without actual Lua programming.
A good place to see how to use ocroscript is to look at the test cases in
ocroscript/tests and the command line driver scripts in ocroscript/scripts.
Note: The Lua bindings follow the C++ API very closely (the binding is mostly
automatic), so C++ and Lua documentation are pretty much the same problem.
I want to write a simple compiler for educational purposes in Delphi. I have read about Coco/R and found this implementation for Delphi: http://code.google.com/p/dcocor/ . From what I have read, this is a parser for the Delphi 2009 syntax.
What would I have to do to turn the parsed file into a bytecode? Can Coco/R do this?
I know about scripting languages like FastScript or DWS, but I'd like to try and write my own for my own purposes.
Please give me some advice or clarify things a little.
What would I have to do to turn the parsed file into a bytecode?
First, decide what kind of bytecode would you like to have: JVM? LLVM? MSIL? Inventing your own?
Can Coco/R do this?
Coco/R is a parser generator framework, it only generates lexer-parser for a language you define and feed to the generator. Steps after that is your responsibility. Though there might be projects out there that can help generating ast/target code (but I haven't found any for Coco/R ).