Developed by | IBM |
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Extended to | SGML |
Generalized Markup Language (GML) is a set of macros that implement intent-based (procedural) markup tags for the IBM text formatter, SCRIPT. SCRIPT/VS is the main component of IBM's Document Composition Facility (DCF). A starter set of tags in GML is provided with the DCF product.
GML was developed in 1969 and the early 1970s by Charles Goldfarb, Edward Mosher and Raymond Lorie (whose surname initials were used by Goldfarb to make up the term GML). [1]
Using GML, a document is marked up with tags that define what the text is, in terms of paragraphs, headers, lists, tables, and so forth. The document can then be automatically formatted for various devices. For example, it is possible to format a document for a laser printer or a line (dot matrix) printer or for a screen by specifying a profile for the device, without changing the document itself.
The Standard Generalized Markup Language (SGML), an ISO-standard technology for defining generalized markup languages for documents, is descended from GML. [1] The Extensible Markup Language (XML) was initially a streamlined and simplified development of SGML, but has outgrown its parent in terms of worldwide acceptance and support.
:h1 id='intr'.Chapter 1: Introduction :p.GML supported hierarchical containers, such as :ol. :li.Ordered lists (like this one), :li.Unordered lists, and :li.Definition lists :eol. as well as simple structures. :p.Markup minimization (later generalized and formalized in SGML), allowed the end-tags to be omitted for the "h1" and "p" elements.
In the early 1980s, IBM developed a dedicated publishing tool called Information Structure Identification Language (ISIL) based on GML. ISIL was used to generate much of IBM documentation for the IBM PC and other products at this time. In the late 1980s, a commercial product called BookMaster was developed, based mostly on ISIL.
During the early 1980s, Don Williams at IBM developed DWScript to use the SCRIPT/VS on the IBM PC. [2] In 1986, he developed a PC version of ISIL called DWISIL. These products were used only internally at IBM.
IBM uses GML as description language on IBM i and predecessors for objects called "panel groups". Panel groups can present just formatted help text to the user when pressing the help key (often F1), resemble the typical IBM i menus with embedded help texts, or complete application displays with input/output fields, and other TUI elements being formatted on screen according to IBM CUA Standards. The overall facility is called User Interface Manager (UIM) and documented in Application Display Programming.
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript, a programming language.
A markuplanguage is a text-encoding system which specifies the structure and formatting of a document and potentially the relationships among its parts. Markup can control the display of a document or enrich its content to facilitate automated processing.
The Standard Generalized Markup Language is a standard for defining generalized markup languages for documents. ISO 8879 Annex A.1 states that generalized markup is "based on two postulates":
Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The World Wide Web Consortium's XML 1.0 Specification of 1998 and several other related specifications—all of them free open standards—define XML.
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Typesetting is the composition of text for publication, display, or distribution by means of arranging physical type in mechanical systems or glyphs in digital systems representing characters. Stored types are retrieved and ordered according to a language's orthography for visual display. Typesetting requires one or more fonts. One significant effect of typesetting was that authorship of works could be spotted more easily, making it difficult for copiers who have not gained permission.
In web development, "tag soup" is a pejorative for HTML written for a web page that is syntactically or structurally incorrect. Web browsers have historically treated structural or syntax errors in HTML leniently, so there has been little pressure for web developers to follow published standards. Therefore there is a need for all browser implementations to provide mechanisms to cope with the appearance of "tag soup", accepting and correcting for invalid syntax and structure where possible.
GML may refer to:
Charles F. Goldfarb, is known as the father of Standard Generalized Markup Language (SGML) and grandfather of HTML and the World Wide Web, also referred to as WWW, W3, or the Web. He co-invented the concept of markup languages.
In the Standard Generalized Markup Language (SGML), an entity is a primitive data type, which associates a string with either a unique alias or an SGML reserved word. Entities are foundational to the organizational structure and definition of SGML documents. The SGML specification defines numerous entity types, which are distinguished by keyword qualifiers and context. An entity string value may variously consist of plain text, SGML tags, and/or references to previously defined entities. Certain entity types may also invoke external documents. Entities are called by reference.
OmniMark is a fourth-generation programming language used mostly in the publishing industry. It is currently a proprietary software product of Stilo International. As of July 2022, the most recent release of OmniMark was 11.0.
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) and the Time Sharing Option (TSO) of OS/VS2; 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.
Scribe is a markup language and word processing system that pioneered the use of descriptive markup. Scribe was revolutionary when it was proposed, because it involved for the first time a clean separation of presentation and content.
Document Content Architecture, or DCA for short, is a standard developed by IBM for text documents in the early 1980s. DCA was used on mainframe and IBM i systems and formed the basis of DisplayWrite's file format. DCA was later extended as MO:DCA, which added embedded data files.
Extensible HyperText Markup Language (XHTML) is part of the family of XML markup languages which mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated.
XMetaL, or XMetaL Author, is a software application people use to create and edit documents in XML and SGML. It has some features common to word processors, but is a native XML editor that can be configured to work with various standard and custom DTDs and XML Schemas. XMetaL was first released by SoftQuad Software in 1999 and is currently developed by JustSystems.
A structured document is an electronic document where some method of markup is used to identify the whole and parts of the document as having various meanings beyond their formatting. For example, a structured document might identify a certain portion as a "chapter title" rather than as "Helvetica bold 24" or "indented Courier". Such portions in general are commonly called "components" or "elements" of a document.
An XML transformation language is a programming language designed specifically to transform an input XML document into an output document which satisfies some specific goal.
SGMLguid, also known as "CERN SGML", "Waterloo based SGML", and "Waterloo SGML", was an early SGML application developed and used at CERN between 1986 and 1990. It served as a model of the earliest HTML specifications.