uses for dynamic scope?

Posted by Stephen on Stack Overflow See other posts from Stack Overflow or by Stephen
Published on 2010-06-05T06:32:05Z Indexed on 2010/06/05 6:42 UTC
Read the original article Hit count: 278

Filed under:

lisp

|

scope

|

emacs-lisp

Hi, I've been getting my hands wet with emacs lisp, and one thing that trips me up sometimes is the dynamic scope. Is there much of a future for it? Most languages I know use static scoping (or have moved to static scoping, like Python), and probably because I know it better I tend to prefer it. Are there specific applications/instances or examples where dynamic scope is more useful?

© Stack Overflow or respective owner

Related posts about lisp

Why do you like Lisp ?

as seen on Programmers - Search for 'Programmers'
Why does Paul Graham advocate Lisp? Why did ITA Software choose Lisp over other High Level languages? Lisp obviously is an advantage for the AI stuff but I don't think Lisp is any faster than Java, C# or as a matter of fact faster than C. Still it is considered as a Hackers language? I am not a master… >>> More
Why is Lisp useful?

as seen on Programmers - Search for 'Programmers'
Lisp obviously is an advantage for the AI stuff but it doesn't appear to me that Lisp is any faster than Java, C#, or even C. I am not a master of Lisp, but I find it incredibly difficult to understand the advantage one would get in writing Business Software in Lisp. Yet it is considered as a hacker's… >>> More
Emacs 23.1 make error 139 in Mac OS X 10.6.3

as seen on Stack Overflow - Search for 'Stack Overflow'
When I try to compile GNU Emacs 23.1 on my machine with Mac OS X 10.6.3 I repeatedly get the following ending: Directories: /src/emacs-23.1/lisp/. /src/emacs-23.1/lisp/./calc /src/emacs-23.1/lisp/./calendar /src/emacs-23.1/lisp/./emacs-lisp /src/emacs-23.1/lisp/./emulation /src/emacs-23.1/lisp/./erc… >>> More
Why not port Linux kernel to Common Lisp?

as seen on Stack Overflow - Search for 'Stack Overflow'
Conventional wisdom states that OS kernels must be written in C in order to achieve the necessary levels of performance. This has been the justification for not using more expressive high level languages. However, for a few years now implementations of Common Lisp such as SBCL have proven to be… >>> More
Lisp Style question label local functions or not?

as seen on Stack Overflow - Search for 'Stack Overflow'
I was wondering if there is a standard practice regarding the use of labels in Lisp. I've been messing around with a Lisp implementation of the algorithm described in the first answer here http://stackoverflow.com/questions/352203/generating-permutations-lazily My current version uses labels to… >>> More

Related posts about scope

AngularJS on top of ASP.NET: Moving the MVC framework out to the browser

as seen on Simple Talk - Search for 'Simple Talk'
Heavily drawing inspiration from Ruby on Rails, MVC4’s convention over configuration model of development soon became the Holy Grail of .NET web development. The MVC model brought with it the goodness of proper separation of concerns between business logic, data, and the presentation logic. However… >>> More
Class scope variable vs method scope variable

as seen on Stack Overflow - Search for 'Stack Overflow'
I know that variable scope is enclosed by a start of block { and an end of block }. If the same variable is declared within the block, then the compile error Variable already defined occurs. But take a look at following example. public class Test{ int x=0;// Class scope variable public void m(){ … >>> More
ngGrid reusable filter AngularJS

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a business requirement that I filter a boolean value in my ngGrid. The filter has three states: only true, only false and both. Filtering like this seems to be a common enough use case that I should refactor that functionality out of my code for re use (possibly in a directive/filter?). I'd… >>> More
Is Context.Items user scope or application scope?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi every one! I want to use Context.Items to store some info of a User Control like: Context.Items["Data"] = 5; I want to know, Is Context.Items is for each request or it is global for the application? >>> More
Modifying a HTML page to fix several "bugs" add a function to next/previous on a option dropdown

as seen on Stack Overflow - Search for 'Stack Overflow'
SOF, I've got a few problems plaguing me at the moment and am wondering if anyone could assist me with them. I'm trying to get Next Class | Previous Class to act as buttons so that when Next Class is clicked it will go to the next item in the dropdown list and for previous it would go to back one… >>> More