
It defines the document structure with a list of legal elements and attributes. A Document Type Definition (DTD) defines the legal building blocks of an XML document. - a set of markup declarations that define a document type for an SGML-family markup language (SGML, XML, HTML).The advent of the XML profile has made SGML suitable for widespread application for small-scale, general-purpose use. SGML also was extensively applied by the military, and the aerospace, technical reference, and industrial publishing industries. Many such documents must remain readable for several decades-a long time in the information technology field. As a document markup language, SGML was originally designed to enable the sharing of machine-readable large-project documents in government, law, and industry. The syntax of SGML is closer to the COCOA format. Goldfarb also wrote the definitive work on SGML syntax in "The SGML Handbook". Goldfarb, editor of the international standard, coined the “GML” term using their surname initials. SGML descended from IBM's Generalized Markup Language (GML), which Charles Goldfarb, Edward Mosher, and Raymond Lorie developed in the 1960s. Members of the Text Encoding Initiative community maintain legacy support for COCOA, although most in-demand texts and corpora have already been migrated to more widely understand formats such as TEI XML In that format, every information type and value encoded by a tag should be considered true until the same tag changes its value. A noticeable difference with its successors is that COCOA tags are flat and not tree structured. The COCOA file format bears at least a passing similarity to the later markup languages such as SGML and XML. Functionality included word-counting and concordance building. It was approximately 4000 punched cards of FORTRAN and created in the late 1960s and early 1970s at University College London and the Atlas Computer Laboratory in Harwell, Oxfordshire. (digital_humanities) - was an early text file utility and associated file format for digital humanities, then known as humanities computing.Lightweight Markup: Markdown, MediaWiki, Wikidot, LaTeX.

Such portions in general are commonly called "components" or "elements" of a document.

For example, a structured document might identify a certain portion as a "chapter title" (or "code sample" or "quatrain") rather than as "Helvetica bold 24" or "indented Courier".
DISABLE SPELL CHECK IN ASCIIDOCFX WINDOWS 10
In Windows 10 Mail, you can also disable the highlighting and autocorrection of spelling errors when writing an e-mail in the options menu. In Windows 10, there's the option to turn off autocorrection of spelling errors in "Settings - Devices - Input".
