"VARNAME","VARVALUE"
or
"VARNAME"="VARVALUE"
or
VARNAME=VARVALUE
(If VARNAME or VARVALUE contain an =, they
must be surrounded by double quotes)
Where VARNAME is the name of the variable to
which VARVALUE is to be assigned.
PAGE continues to read name/value pairs until
it encounters the first line which starts with
a *. The contents of the line are assigned
to the variable named on the .RS line.
Avoid using both .RS and .RV on the same file.
This command in PAGE:
.RS TAG
Would read the following data file.
"VAR1","VAL1"
"VAR2","VAL2"
*TAGVAL*
With the result that the variable named VAR1
would be assigned the value VAL1, VAR2 would
be assigned the value VAL2, and the variable
TAG would be assigned the value TAGVAL
(Note: Tag values MUST begin with a * in
column 1).
If useful, a set of properties may have a tag
both at the beginning and the end. Use a
different tag value for the beginning and the
end and use an additional .RS to read the
leading tag. Below is a typical example of a
single data file containing "Header" and
"Detail" information in the same file:
Now, here are the commands used to access
the data:
.DF DATA
.RS TAG
.IF "&TAG&"="*HEADER*"
.. Here comes a new header record
.IF
.IF "&TAG&"="*DETAIL*"
.. Here comes a new detail record
.IF
.RS TAG
.IF "&TAG&"="*END_HEADER*"
.. Header record has just been loaded
.IF
.IF "&TAG&"="*END_DETAIL*"
.. Detail record has just been loaded
.IF