What is MIME type "application/x-newlisp"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

application/x-newlisp is a MIME type that signals files containing newLISP source code. It tells systems and code editors to treat the file as text with newLISP commands and functions.

Files marked with this type include those with extensions like LSP, KIF, and NL. These files are plain text and follow the syntax rules of newLISP.

Main use case: It helps software know when to apply newLISP-specific behaviors, such as proper syntax highlighting and error checking in editors.

Key points:

Scripting and Execution: Code interpreters run these newLISP scripts directly.
Enhanced Editing: Editors use the MIME type to support language-specific features.
Platform Versatility: Files work across various systems that support newLISP.
Community Standard: Although non-standard, it is widely accepted among newLISP developers.

This MIME type streamlines how programs and tools handle newLISP scripts. For more technical details on MIME types and file handling, visit MIME on Wikipedia.

Associated file extensions

.lsp, .kif, .nl

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/x-newlisp

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/x-newlisp">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/x-newlisp');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.lsp, .kif, .nl

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.