Eclipse Community Forums: TMF (Xtext) » C-Based Editor (Xtext or CDT)?

Help

Home

Home » Modeling » TMF (Xtext) » C-Based Editor (Xtext or CDT)?

Show: Today's Messages :: Show Polls :: Message Navigator

C-Based Editor (Xtext or CDT)? [message #844816]

Sat, 14 April 2012 11:40

Oleg Bolshakov

Messages: 36
Registered: August 2010

Member

Hello, I'm going to create an Eclipse editor of a language, based on C grammar. Are there any Xtext c grammars? What would you recommend - to create a new editor with Xtext or try to extend existing CDT grammar?

[Updated on: Sat, 14 April 2012 12:47]

Report message to a moderator

Re: C-Based Editor (Xtext or CDT)? [message #844883 is a reply to message #844816]

Sat, 14 April 2012 13:19

Andreas Graf

Messages: 211
Registered: July 2009

Senior Member

Hi Oleg,

it depends on what you mean by "based on C grammar". Do you want to support #define and #include with C-like semantics? This would be one of the most important aspects. If you need to support cpp-like preprocessing: Try to find a different project Smile

Andreas

Report message to a moderator

Re: C-Based Editor (Xtext or CDT)? [message #844911 is a reply to message #844883]

Sat, 14 April 2012 14:05

Oleg Bolshakov

Messages: 36
Registered: August 2010

Member

Andreas Graf

it depends on what you mean by "based on C grammar".

I mean several extended concepts like tasks with their local variables, functions and С#-like events. But the code is C-like (all functions are C-like).

Andreas Graf

Do you want to support #define and #include with C-like semantics? This would be one of the most important aspects.

Why do you think so? Do you think there is difficulty in supporting #define and #include with Xtext grammar?

Andreas Graf

If you need to support cpp-like preprocessing: Try to find a different project

Again, why? I know that Xtext supports linking and scoping, what did you mean?

[Updated on: Sat, 14 April 2012 14:14]

Report message to a moderator

Re: C-Based Editor (Xtext or CDT)? [message #844997 is a reply to message #844911]

Sat, 14 April 2012 16:16

tiange zhang

Messages: 16
Registered: February 2011
Location: Shanghai, China

Junior Member

Hi Oleg,
Supporting preprocessing is difficult for IDE. Java has no preprocessing support, C# has only limited support for preprocessing (h**p://msdn.microsoft.com/en-us/library/ed8yd1ha.aspx).

Considering the following dsl files:

a.dsl

print(a);
int b;

b.dsl

func(){
	int a;
	#include "a.dsl"
	print(b);

}

There are two source files. Xtext will try to resolve names referenced by each file and export names defined in each file, this is what linking and scoping try to do. In "a.dsl", Xtext can't resolve name 'a' and will failed to compile.

Preprocessor support can result in source fragments which are impossible for grammar to recognize.

Report message to a moderator

Previous Topic:	strange completion
Next Topic:	Need some help

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Sat Apr 20 01:35:34 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter