PS TEXT FORMAT Reference Manual

Expressions
11387 Tandem Computers Incorporated 5-11
SYS_STACKFLAGS This variable is a string of characters representing flags that indicate
whether TFORM is currently processing lines within the scope of various
commands. Each is either “1” or “0,” indicating true or false, respectively.
The various characters in the string are shown in Table 5-5.
Table 5-5. SYS_STACKFLAGS Characters
Position Command
1 CENTER
2 CHANGES
3 INDENT LEFT|BOTH
4 INDENT RIGHT|BOTH
5 KEEP
You can access individual characters through the use of the STRING
function. (S)
SYS_SYSTEM This is the external name of the current system, used to expand file names
specified in SOURCE commands. Its initial value is the name of the system
on which you were running when you invoked TFORM. (S)
SYS_TABS This is a list, separated by commas, of the column numbers at which tab
stops are currently set. (S)
SYS_TEXTAREA-
LENGTH
This is the length, in decipoints, of the text region, computed from the form
length minus the total of headers, footers, gaps, and top and bottom
margins. (N)
SYS_TEXTAREA-
UNUSED
TFORM maintains in this variable a count, in decipoints, of the text area
remaining on the current page that is not already occupied by text lines.(N)
SYS_TFORMVERSION This is the current version of TFORM that is running on your system (for
example, T9605B30). (S)