Sets a variable to a new value.

Attributes

variable=variable

The variable to set.

debug

Provide debug messages in case the operation fails. <set> will normally fail silently.

define=define

Set the variable to the contents of this define.

expr=expression

Set the variable to the result of a simple mathematical expression. Operators that can be used are +, -, *, /, % and |. Only numerical values can be used in the expression.

eval=rxml expression

Set the variable to the result of this rxml expression.

from=variable

Set the variable to the value of the named variable.

other=variable

Set the variable to the value of this other variable. This is mostly useful from within output tags like <sqloutput> where all columns from the SQL result will be available as other variables.

value=string

Set the variable to this value.

If none of the above attributes are specified, the variable is unset. If debug is currently on, more specific debug information is provided if the operation failed.

Example

<set variable=foo value="Hello World">

<insert variable=foo>

<set variable=foo eval="<date>">

<insert variable=foo>