I'm doing an assignment and it says "Use PySpark and Syntax would be highly recommended to complete this exercise". I tried looking up Syntax library but nothing useful comes up. Is there a library Syntax which is used with PySpark?
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I want to use VSCode to work on Scala code, but cannot get error highlighting to work.
See some example code below, how it looks like, vs. how I want it to highlight errors.
I think every proper programming language should have code editor support for highlighting of obvious errors regarding undefined variables, functions or operator overloadings.
What can I do, to get error highlighting for Scala in VSCode?
I am trying to print the dependencies associated with a code, such as definitions related to functions or variables in a statement using Emacs, however I am not finding the functions necessary to do it. I have already been able to parse the code, now I just need the printing part, for which I have been looking into the srecode package without success.
It will be a necessary step to translate Java code into C or C++
What "code"? In what programming language? There are packages for different programming languages that could help. You need to be more specific.
to use emacs at this point perharps was a bad idea. I searched for code slicing and found some tools here: slicers. For the translation part I may use code from cogre-srecode.el from the cogre package of cedet and for it the manual of srecode is better
I'm trying to figure out how to modify an XML file with NSIS. So I'm trying to learn how to use the XML plugin. The examples on the forum page often use the format ${plugin::command} like:
${xml::LoadFile}
The documentation gives no indication that you need the dollar sign and curly braces. As I understand it, just plugin::command will do. So I've been trying to figure out what that syntax means.
The documentation says a $ is for variables and the {} are for code blocks, but I can't find anything about what it means when they're used together. My Internet searches have revealed that it's used for something called template literals in JavaScript. But what does it mean in NSIS?
EDIT: I should mention that the NSIS documentation does show examples of this syntax, especially in the Predefines section, but it still doesn't explain what the syntax means in general.
EDIT: Okay, now I see that the syntax is for the compiler to replace things using !define and !macro. But... what about this specific case? Is it valid to use colons in such a symbol? Why are some people writing ${xml::LoadFile}and some people just writing xml::LoadFile?
It's a !define. There is a header file for this plugin that defines it. The plugin probably needs to do more than one thing, so they wrapped a few lines together with a define that inserts a macro. Either that or it has some default parameters for the plugin call. Either way, it's trying to save you some typing with this syntax.
I am building an experimental lexer generator and I think it would be cool to output simple syntax highlighters for VS Code. The input grammar goes through the classic regular language -> NFA -> DFA transformation, then generates state machine code (it also has some unconventional features to support nested languages). Converting all this back into tmlanguage definitions is a complicated problem, and I'm starting to wonder if a VS Code extension is a better option. The question is:
Are VS Code syntax highlighting internals completely tied to the tmlanguage regex scanner, or would it be possible to write an extension that provides tokens / highlight ranges programmatically?
Is there an API that would make this reasonably straightforward, or would this project be a tour de force?
As of VSCode 1.15, you have to use textmate grammars for syntax highlighting. There's an feature request open that tracks what you are after: https://github.com/Microsoft/vscode/issues/1967
I am trying to figure out the expression syntax for py.test selection using the '-k' option.
I have seen the examples, but I am unclear of what the syntax options are when using the 'k' tag.
I am trying to scan the py.test source code, but so far no luck.
Can anyone give me pointers on what the syntax is for py.test test selection (-k)?
Mmm.. it's not well documented mainly because it's a bit confused and not that well defined. You can use 'and', 'or' and 'not' to match strings in a test name and/or its markers. At heart, it's an eval.
For the moment (until the syntax is hopefully improved) my advice is to:
Use --collectonly to confirm that your -k selects what you want before executing tests
Add markers to tests as needed to further distinguish them.