SCRIPT (markup)

SCRIPT, any of a series of text markup languages starting with Script under Control Program-67/Cambridge Monitor System (CP-67/CMS) and Script/370 under Virtual Machine Facility/370 (VM/370); the current version, SCRIPT/VS, is part of IBM's Document Composition Facility (DCF) for IBM z/VM and z/OS systems. SCRIPT was developed for CP-67/CMS by Stuart Madnick at MIT, succeeding CTSS RUNOFF.

SCRIPT is a procedural markup language. Inline commands called control words, indicated by a period in the first column of a logical line, describe the desired appearance of the formatted text. SCRIPT originally provided a 2PASS option to allow text to refer to variables defined later in the text, but subsequent versions allowed more than two passes.

SCRIPT allows space units in control words to be specified in a number of units including inches, centimeters, millimeters, picas, ciceros, m-spaces, or device units (pels at the current device resolution). Vertical space units are assumed to be lines unless otherwise specified.

Script includes a facility for user-defined macros and for automatically reading a profile containing macro definitions and other commands. Several packages for semantic tagging, including GML and EasyScript are built on top of this facility.

IBM's Generalized Markup Language (GML) Starter Set is a macro language encapsulating a set of SCRIPT commands. GML is a descriptive markup layer describing the logical structure of a document. Both SCRIPT/VS and the GML Starter Set are part of IBM's Document Composition Facility (DCF), used in the System/370 platform and successors. The tag sets of the BookMaster and BookManager BUILD/MVS products are built on a foundation of the GML Starter Set syntax and implementation.

...
Wikipedia