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The SDDS header consists of a series of namelist-like constructs, called namelist commands. These constructs differ from FORTRAN namelists in that the SDDS routines scan each construct, determine which it is, and use the data appropriately. There are seven namelist commands recognized under Version 1. Each is listed below along with the data type and default values.
For each command, an example of usage is given. Several styles of entering the namelist commands are exhibited. I suggest that the user choose a style that makes it easy to pick out the beginning of each command. Note that while each namelist command may occupy one or more lines, no two commands may occupy portions of the same line.
Any field value containing a dollar-sign or ampersand must be enclosed in double quotes, as must string values containing white-space characters.
Another character with special meaning is the exclamation point, which introduces a comment. An exclamation point anywhere in a line indicates that the remainder of the line is a comment and should be ignored. A literal exclamation point is obtained with the sequence \!, or by enclosing the exclamation point in double quotes.
The commands are briefly described in the following list, and described in detail in the following subsections:
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