The >>--- symbol indicates the beginning of a command, directive, or statement.
The ---> symbol indicates that the command, directive, or statement syntax is continued on the next line.
The >--- symbol indicates that a command, directive, or statement is continued from the previous line.
The --->< symbol indicates the end of a command, directive, or statement.
Diagrams of syntactical units other than complete commands, directives, or statements start with the >--- symbol and end with the ---> symbol.
>>-statement--required_item------------------------------------><
>>-statement--+---------------+-------------------------------->< '-optional_item-'
If you must choose one of the items, one item of the stack appears on the main path.
>>-statement--+-required_choice1-+----------------------------->< '-required_choice2-'
If choosing one of the items is optional, the entire stack appears below the main path.
>>-statement--+------------------+----------------------------->< +-optional_choice1-+ '-optional_choice2-'
The item that is the default appears above the main path.
.-default_item---. >>-statement--+-alternate_item-+-------------------------------><
.-----------------. V | >>-statement----repeatable_item-+------------------------------><
A repeat arrow above a stack indicates that you can make more than one choice from the stacked items, or repeat a single choice.
Variables appear in italicized lowercase letters (for example, identifier). They represent user-supplied names or values.
The following syntax diagram example shows the syntax for the #pragma comment directive. See Pragma Directives (#pragma) for information on the #pragma directive.
(1) (2) (3) (4) (5) (6) (9) (10) ->->-#--pragma--comment--(**----*compiler*-----------------------*--)--><- | | +----*date*---------------------------+ | | +----*timestamp*----------------------+ | | *--*--copyright--*--*-----------------+ | | | | *--user-------* *-*,*"characters"-* (7) (8) |
(1) This is the start of the syntax diagram.
(2) The symbol # must appear first.
(3) The keyword pragma must appear following the # symbol.
(4) The keyword comment must appear following the keyword pragma.
(5) An opening parenthesis must be present.
(6) The comment type must be entered only as one of the types indicated: compiler, date, timestamp, copyright, or user.
(7) A comma must appear between the comment type copyright or user, and an optional character string.
(8) A character string must follow the comma. The character string must be enclosed in double quotation marks.
(9) A closing parenthesis is required.
(10) This is the end of the syntax diagram.
The following examples of the #pragma comment directive are syntactically correct according to the diagram shown above:
#pragma comment(date) #pragma comment(user) #pragma comment(copyright,"This text will appear in the module")
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