I'm currently searching for the name and spec for the metasyntax used in this article to describe the proposed feature for c#, but can't seem to find it anywhere.
https://github.com/dotnet/csharplang/blob/main/proposals/discriminated-unions.md
Found it! That metasyntax belongs to Antlr.
https://www.antlr2.org/doc/metalang.html
Related
How can find what is included in the #containment annotation? I can not find that in the documentation online, that refers only to grammar-spec and nothing more? I'm talking about trying to obtain information/facts from the M3 model..
As an example:
scheme=="java+variable" or some other condition is used in a comprehesion to filter, how do you know what can be used to find certain thing??
Thanks
The documentation is not complete, but these pages are relevant:
http://tutor.rascal-mpl.org/Rascal/Libraries/lang/java/m3/m3.html#/Rascal/Libraries/analysis/m3/Core/Core.html
http://tutor.rascal-mpl.org/Rascal/Libraries/lang/java/m3/m3.html
I would also have a look at the code in these files:
https://github.com/cwi-swat/rascal/blob/master/src/org/rascalmpl/library/lang/java/m3/Core.rsc
https://github.com/cwi-swat/rascal/blob/master/src/org/rascalmpl/library/lang/java/m3/AST.rsc
They can be found in the rascal navigator view in Eclipse as well. In particular the core file contains all to know about the relations and locations in the java m3 model.
For example :
If I had http://somepage.com/somefolder/someresouce?p1=value&p2=value&p3=value
I would like to see a column that would display the value of p2 if it existed in the request.
I googled, asked people around but can't find a good answer.
If think creating a dissector might help, but I don't want to write a new dissector for http.. that's an overkill.
And there is no http.request.queryParams["p2"] syntax for use of Custom Column type.
Thanks in advance!
Edit : I solved my own Question, adding the best implementation so far in my own answer below.
Well, the solution was indeed in dissectors.
Wireshark help is not very good, the examples are ok though.
The main problem was that wireshark help defines that you can write your lua script, and place it in the plugins directory, which is searched recursively for lua files.
I did place my lua there and nothing worked, After almost 2 hours of fiddling, I found out instead of putting it in the plugins directory, it had to be in plugins//myScript.lua in order to work...
Now just to share my work :
To answer my own question :
http://pastebin.com/eANEut92
In the zf2 database and models tutorial a path such as this leads to a directory containing my model classes:
module/Album/src/Album/Model
I have created two more classes at:
module/Album/src/Album/Model/AlbumRelatedClass.php
module/Album/src/Album/Model/AlbumRelatedTable.php
I would like to put these classes at
module/Album/src/AlbumRelated/Model/
I have created duplicates of the model classes there for the purposes of this test, unfortunately, my module config for Album tells me that it cannot find the classes at the AlbumRelated location. I have tried changing the namespaces in the AlbumRelated location to AlbumRelated\Model and directly referring to the class location (\Album\Model\AlbumRelated()) without success.
Does anyone know how I can do this? If I shouldn't be doing this, can somebody explain why? I'm also interested to know why the folder structure is Album/Model/Album (it seems redundant, and I wasn't clear on the explanation in the tutorial).
Any help given would be great, thanks :)
The short answer is that it can't find the class because you probably didn't set up the autoloader config to know about a new "AlbumRelated" namespace. Look at what happens in \Album\Module::getAutoloaderConfig(). You probably want to add a key/value pair to namespaces like 'AlbumRelated' => __DIR__ . '/src/AlbumRelated'. That will tell the autoloader where to look for classes under the AlbumRelated namespace.
That said,
If I shouldn't be doing this, can somebody explain why?
You probably shouldn't be doing it that way. You've got a top-level namespace called \Album. Then you have \Album\Model namespace under it. Any models related to Albums ought to live there. Imagine you had an entity in your system for Record Labels, so you could associate an Album with the label that released it. The ZF2 expectation is that you'd create a class called \Album\Model\RecordLabel that lived in module/Album/src/Album/Model/RecordLabel.php. As long as we assume that RecordLabels are primarily related to albums, that all makes perfect sense.
Of course, you could stick RecordLabel in it's own module as well, if you had a lot of workflow around managing them.
I'm also interested to know why the folder structure is Album/Model/Album
I assume you mean Album/src/Album. That redundancy is to keep a nice clean PSR-0 setup. So, the first Album is identifying the module, and the second is the top-level of the Album namespace. This provides maximum flexibility, but isn't a hard and fast rule. See Rob Allen's recent blog post about alternative module layouts in zf2 for an exploration.
I've got MMM-mode set up to edit .html.erb files, but indentation does not work in the ruby sections, and all the different electric behaviours of ruby-mode do the wrong thing. I've changed this sub-mode from ruby-moode to fundamental-mode, and it works much better.
I want to still use ruby-mode's font-locking though, is this possible/easy? Any hints on where to start.
Elisp is comfortable to me, but I don't have too much time right now to dig too deeply myself. Hopefully someone will have a snippet?
I see you haven't yet found an answer. Dunno whether it will be better for this, but you might consider using MuMaMo instead of MMM.
To answer the question, you would define a major mode deriving from fundamental-mode, and in its body just copy the font-lock-related lines from the ruby-mode definition body, the ones setting font-lock- variables and also syntax-propertize-function. Naturally , you need to (require 'ruby-mode) somewhere.
But for .html.erb files I can now recommend using mmm-erb, which was not available when this question was asked.
I've been learning Ruby/Rails with vim. Tim Pope's rails.vim seems like a really good tool to traverse files with, but I keep getting these pesky "E345 can't find file in path" errors. I'm not vim expert yet, so the solution isn't obvious. Additionally, I've tried this and it doesn't apply to my problem.
As an example of the problem. I have a method format_name defined in app/helpers/application_helper.rb and it is used in app/helpers/messages_helper.rb. Within the latter file I put my cursor over the usage of format_name and then hit gf and I get that error. Similar disfunction with commands like ]f and [f
However, it works sometimes. I was able to gf from user to the app/models/user.rb
Ideas?
I think that is a limitation of rails.vim. It does not support “finding” bare methods. Supporting something like that would require one of the following:
an exhaustive search of all the source files for each “find” request
(which could be expensive with large projects),
“dumb” indexing of method names
(e.g. Exuberant Ctags and gControl-]; see :help g_CTRL-]), or
smart enough parsing of the code to make a good guess where the method might be defined
(which is hard to do properly).
If you know where the method is, you can extend many of the navigation commands with a method name:
:Rhelper application#format_name
But, you do not have to type all of that in. Assuming the cursor is on format_name you can probably just type:RhTabspaceappTab#Control-R Control-W (see :help c_CTRL-R_CTRL-W).