A lightweight markup language is a markup language with a simple syntax, designed to be easy for a human to enter with a simple text editor, and easy to read in its raw form.
Lightweight markup languages are used in applications where people might be expected to read the document source as well as the rendered output. For instance, a person downloading a software library might prefer to read the documentation in a text editor rather than a browser.
Another application is for entry in web-based publishing, such as weblogs and wikis, where the input interface is a simple text box. The server software converts the input to a common document markup language like HTML or XHTML.
Read more about Lightweight Markup Language: History, Types, Comparison of Language Features
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“When a language creates—as it does—a community within the present, it does so only by courtesy of a community between the present and the past.”
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