BS ISO/IEC 14977-1996 信息技术.句法元语言.扩展的BNF

标准号：BS ISO/IEC 14977-1996
中文标准名称：信息技术.句法元语言.扩展的BNF
英文标准名称：Information technology - Syntactic Metalanguage - Extended BNF
标准类型：L74
发布日期：1998/2/15 12:00:00
实施日期：1998/2/15 12:00:00
中国标准分类号：L74
国际标准分类号：35.060
适用范围：This International Standard defines a notation, Extended BNF, for specifying the syntax of a linear sequence of symbols. It defines both the logical structure of the notation and its graphical representation. Extended BNF has applications in the definition of pro-gramming and other languages, as well as in other formal definitions, for example the commands to an operating system, or the precise format of data and results. Examples of Extended BNF are given in clause 8. NOTE —Like many other notations, Extended BNF can still be misused; thus it does not prevent someone from trying to define an unparsable or ambiguous language.