There's a forum request for the IDE PhpED to provide syntax support for SCSS and possibly LESS. The response from the PhpED folks has been that they are not able to find a formal description of the grammar similar to the CSS grammar described here: http://www.w3.org/TR/CSS21/grammar.html
Does anyone know where a formal description can be found? There are lot of PhpED users (including me) who would like SCSS support.
It seems that phpEd will support SCSS soon (in version 14) so developers managed to find grammar. But there is no info about LESS or SASS syntax.
Related
I'm working on a tool that is able to autocomplete the necessary literals defined in a grammar. For example: in C# if a programmer enters: for with a space after it, then it's entirely possible to parse the code, determine that the programmer has started a for statement and autocomplete the necessary punctuation: ( ; ; ).
The more I think about the problem, the more I think there must already be a solution for it, because it's such a common use case, but I can't find anything.
Is there a tool that can do this using a given grammar?
If you don't mind using ANTLR v3 instead of v4 you can use Xtext in order to generate an editor that features auto-complete and error-highlighting. This will happen in form of a plugin for eclipse and apparently also for IntelliJ IDEA.
If you want to use a different IDE or simply want to make use of ANTLR v4's powerfull features you could still have a look at the Xtext Sources as they have to do what you are searching for in order to provide the above mentioned features properly...
This package looks very promising at first glance... You might find the respective code in there.
Be aware though that Xtext is mainly written with Xtend so you either have to do so as well or you have to rewrite it a bit
I am wondering if I can use ANTLR on C++ on Xcode? If not, are there any alternatives?
I need production quality of the 3rd party libraries.
Also see: Integrating ANTLR 4 in a C++ application
ANTLR3 has a C target which you can use in a C++ project, albeit with a bit of hacking (no personal experience with that, I base it by reading the answers there).
If not, are there any alternatives?
Sure, it's even been asked before: C++ parser generator which links to the Wiki list of parser generators, and of course, there's Google that has more than one suggestion.
I just downloaded brackets after hearing recent buzz about the editor. There are some really cool / useful features out of the box.
Alot of my projects use templating engines, like twig. Does this editor support bundles for other filetypes? I have been using textmate for a while and by simply downloading the twig bundle I have highlighting and code snippets integrated into the editor. I am hoping brackets has a similar feature.
The short answer is: not yet, but soon.
Longer answer:
APIs for Brackets extensions to add a new syntax/language are currently in progress, and will probably be done in about a month.
Since Brackets uses the CodeMirror editor, syntax highlighting is driven by CodeMirror "modes." It doesn't appear that anyone has made a Twig mode yet. But it might not be too hard to build one, either based on the sample code for Mustache highlighting or the new "multiplexing mode" feature in CodeMirror 3 (Brackets is updating to CodeMirror 3 soon).
Brackets may eventually support directly importing TextMate language bundles, like Sublime does, but that's a ways off.
As a stopgap, you could have Brackets just highlight Twig files as plain HTML -- better than no color coding at all. That'll be doable with the upcoming extension APIs, but if you're feeling adventurous you could hack your current copy of Brackets to do that right now. Just dig into the app folder, open www/editor/EditorUtils.js, and add the file extension after the case "html": line.
(p.s. - I work on the Brackets core team. Thanks for giving Brackets a try!)
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 ).
Can anyone recommend a parser generator that will produce win32 Delphi code? What I'm trying to do is create a simple Domain-Specific Language.
How complex is your DSL?
I created a parser (in Delphi) for the new Delphi RIDL language to support some in-house COM generation tools we use.
My approach was to use ANTLR to play around with the syntax rules until I had something that parsed the various test files I had. I then hand-coded a recursive descent parser (based on the Java generated by ANTLR). I was also using the Castalia Delphi Parser in the project, so I based my lexical analyser on that.
Recursive descent parsers are actually really simple (but tedious :-) ) to write manually.
The Delphi versions of Coco/R are quite ok:
http://www.ssw.uni-linz.ac.at/Research/Projects/Coco/
most notably Pat Terry's one:
http://www.scifac.ru.ac.za/coco/
Try this:
http://www.grendelproject.nl/dyacclex/
I have not tried this at all and I just noticed the information while I was reading through the documentation, but FastScript, in their documentation which you can get here, says that you can use their parser to create your own language which you specify in an XML file. This might give you something you can use.
I found Antlr For Delphi 3.1.1.
SharpPlus Antlr For Delphi Target
3.1.1, a language tool that provides a framework for constructing
recognizers, interpreters, compilers
with Delphi!
It is a commercial product. I have no idea what it is like.