IBM SCRIPT

SCRIPT was an IBM text formatting language developed in the 1980s that used inline commands like .ce to center a piece of text or .sp 3 to add three lines of vertical space. It was a predecessor to the widely-deployed PostScript known today, and the LaTeX language. GML (Generalized Markup Language) was created as a macro language that encapsulate set of SCRIPT commands. While SCRIPT was used to describe physical formatting, GML was used to describe logical structure of a document. The Standard Generalized Markup Language, SGML, is a descendant of GML.
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