Italic text may be implemented by _underscores_ and/or *single-asterisks*. ĭepending on implementation, basic inline HTML tags may be supported. Markdown is also supported in a wide variety of apps and services, like Microsoft Teams chat and Discord messages. Websites like GitHub, Bitbucket, Reddit, Diaspora, Stack Exchange, OpenStreetMap and SourceForge use variants of Markdown to facilitate discussion between users. RFC 7764 discussed and registered the variants MultiMarkdown, GitHub Flavored Markdown (GFM), Pandoc, and Markdown Extra among others.RFC 7763 introduced MIME type text/markdown.In March 2016 two relevant informational Internet RFCs were published: Nonetheless, the following websites and projects have adopted CommonMark: Discourse, GitHub, GitLab, Reddit, Qt, Stack Exchange (Stack Overflow), and Swift. published several versions of a specification, reference implementation, test suite, and " to announce a finalized 1.0 spec and test suite in 2019." No 1.0 spec has since been released as major issues still remain unsolved. In September 2014, Gruber objected to the usage of "Markdown" in the name of this effort and it was rebranded as CommonMark. A community website now aims to "document various tools and resources available to document authors and developers, as well as implementors of the various Markdown implementations". Standardization CommonMarkįrom 2012, a group of people, including Jeff Atwood and John MacFarlane, launched what Atwood characterised as a standardisation effort. Gruber avoided using curly braces in Markdown to unofficially reserve them for implementation-specific extensions. However, Gruber has argued that complete standardization would be a mistake: "Different sites (and people) have different needs. These issues spurred the creation of tools such as Babelmark to compare the output of various implementations, and an effort by some developers of Markdown parsers for standardisation. The behavior of some of these diverged from the reference implementation, as Markdown was only characterised by an informal specification and a Perl implementation for conversion to HTML.Īt the same time, a number of ambiguities in the informal specification had attracted attention. Rise and divergence Īs Markdown's popularity grew rapidly, many Markdown implementations appeared, driven mostly by the need for additional features such as tables, footnotes, definition lists, and Markdown inside HTML blocks. It can take the role of a standalone script, a plugin for Blosxom or a Movable Type, or of a text filter for BBEdit. Gruber wrote a Perl script,, which converts marked-up text input to valid, well-formed XHTML or HTML and replaces angle brackets ( ) and ampersands ( &) with their corresponding character entity references. Its key design goal was readability, that the language be readable as-is, without looking like it has been marked up with tags or formatting instructions, unlike text formatted with ‘heavier’ markup languages, such as Rich Text Format (RTF), HTML, or even wikitext (each of which have obvious in-line tags and formatting instructions which can make the text more difficult for humans to read). Swartz and Gruber then worked together to create the Markdown language in 2004, with the goal of enabling people "to write using an easy-to-read and easy-to-write plain text format, optionally convert it to structurally valid XHTML (or HTML)." In 2002 Aaron Swartz created atx and referred to it as “the true structured text format”. You might also like to read more about including Markdown tables in your document, and my tricks to center stuff in Markdown.Markdown was inspired by pre-existing conventions for marking up plain text in email and usenet posts, such as the earlier markup languages setext (c. Make sure to also check out my Markdown cheat sheet for a quick overview of what’s possible. xml – XML and also used for HTML with inline CSS and Javascript.Here’s the list of commonly supported languages on sites like GitHub: Alternatively, visit the documentation of your specific Markdown. ![]() ![]() If your language isn’t in here, I suggest you simply try if it is supported. What follows here, is a list of many common languages and formats that you can try. Which languages are supported, heavily depends on the Markdown parser you’re using. If possible, I strongly suggest using fenced code blocks. Indented code blocks are less convient to insert in your document.You can’t specify a language, so most likely you won’t have syntax highlighting.However, there are some downsides to using indented code blocks as well: The upside of this method is that it is supported by pretty much all Markdown parsers, as far as I know.
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