Library /sys$common/syshlp/basichelp.hlb Conventions, Mnemonics *Conan The Librarian (sorry for the slow response - running on an old VAX) |
The following mnemonics are used in HELP text: Mnemonic Definition array An array; the syntax formats indicate whether you can specify bounds and dimensions or just dimensions chnl An I/O channel associated with a file com Specific to a COMMON cond Conditional; used with the expression mnemonic to indicate that an expression can be either logical or relational const A constant value data-type A data type keyword; type HELP DATA_TYPES for information on BASIC data types def Specific to a DEF dev-id An identification number for a particular graphics device; always preceded by a number sign (#) dev-type The GKS number associated with the particular type of hardware device exp An expression file-name A file name file-spec A file specification func Specific to a FUNCTION subprogram int An integer value item Allowable BASIC objects, such as variables, data types, and parameters; allowable objects are defined in formats as they occur label An alphanumeric statement label lex Lexical; used to indicate a component of a compiler directive line-num A program line number lit A literal value, in quotation marks log Logical; used with the expression mnemonic to indicate a logical expression map Specific to a MAP matrix A two-dimensional array name Indicates the declaration of a name or the name of a BASIC structure, such as a SUB subprogram num A numeric value pic-name The name of a PICTURE subprogram real A floating-point value rel Relational; used with the expression mnemonic to indicate a relational expression sub Specific to a SUB subprogram subs Subscripted; used with the variable mnemonic to indicate an array element; the element's position in the array is specified by subscripts enclosed in parentheses and separated by commas str A character string target The target point of a branch statement; indicates that the target point can be either a program line number or a statement label tran-term A reserved keyword used for a transformation function unsubs Unsubscripted; used with the variable mnemonic to indicate a simple variable, as opposed to an array element var A variable x-array An array of values for x-coordinates x-coord A value for the x-coordinate of a point y-array An array of values for y-coordinates y-coord A value for the y-coordinate of a point Mnemonics are combined to form metalanguage symbols that specify the type of language element allowed in a format. For example: o Const-name Is a constant name. o Sub-name Is the name of a SUB subprogram. o Unsubs-var Is an unsubscripted variable. o Int-exp Is an integer expression. o Cond-exp Is a conditional expression. o Str-unsubs-var Is a string unsubscripted variable.
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