What is MIME type "text/x-yacc"?
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
text/x-yacc marks files that contain grammar rules for parser generators. These files are plain text user-defined specifications that tools like Yacc and Bison read to build parsers.They describe the structure of a language by detailing tokens, rules, and actions. This setup helps compiler and interpreter development by outlining how input should be processed.
- Main Use: Defining grammar rules for parser generation.
- Key Facts:
- Format: Plain text that lists tokens and rules.
- Tool Support: Works with parser generators such as Yacc and Bison.
- Editor Integration: Often recognized by text editors with syntax highlighting support.
- Additional Uses: Used in educational projects and experimental language processing.
Files using this MIME type often have the Y extension. For more information, see the Yacc page on Wikipedia.
Associated file extensions
Usage Examples
HTTP Header
When serving content with this MIME type, set the Content-Type header:
Content-Type: text/x-yacc
HTML
In HTML, you can specify the MIME type in various elements:
<a href="file.dat" type="text/x-yacc">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', 'text/x-yacc');
res.end('Content here');
}).listen(3000);
Associated file extensions
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.