OPTION Statement

The OPTION command controls global command execution and sets a few global quantities:

OPTION,ECHO=logical,INFO=logical,TRACE=logical,VERIFY=logical,
       WARN=logical,ADDERROR=logical,SEED=real,TELL=logical;

The first five logical flags activate or deactivate execution options:

ECHO

Controls printing of an echo of input lines on the standard error file.

INFO

If this option is turned off, MAD suppresses all information messages.

MAD8

When the MAD8 option is on, all output of the SHOW, SAVE, ESAVE, and MAKESEQ is written in MAD-8 format. MAD-9 can thus serve as a translator from MAD-9 to MAD-8 format.

TRACE

When the TRACE option is on, MAD writes additional trace information on the standard error file for each executable command. This information includes the command name and elapsed CPU time before and after the command.

VERIFY

If this option is on, MAD gives a message for each undefined variable or element in a beam line.

WARN

If this option is turned off, MAD suppresses all warning messages.

ADDERROR

If this logical flag is set, an EALIGN, EFIELD, or EFCOMP, causes the errors to be added on top of existing ones. If it is not set, new errors overwrite any previous definitions.

SEED

Selects a particular sequence of random values. A SEED value is an integer in the range [0...999999999] (default: 123456789). SEED can be an expression. See also: random values.

The last attribute requests listing of the current settings:

TELL

If true, the current settings are listed.

Examples:

OPTION,ECHO=FALSE,TELL;
OPTION,SEED=987456321

Table 3.1: Default Settings for Options

ECHO	= true	INFO	= true	TRACE	= false	VERIFY	= false
WARN	= true	ADDERROR	= false	SEED	= 123456789	TELL	= false