User guide

The following conventions are used in the command listings:
Table C–1 Conventions
ESC Escape (1/11), introduces an escape sequence
CSI Control Sequence Introducer (9/11), introduces a control sequence. CSI can
also be represented by the equivalent escape sequence ESC [ (1/11 5/11).
DCS Device Control String (9/0), introduces a device control string. DCS can also
be represented by the equivalent escape sequence ESC P (1/11 5/0).
ST String Terminator (9/12) indicates the end of a control string. ST can also be
represented by the equivalent escape sequence ESC \ (1/11 5/12).
Pn Numeric parameter, or number of units that specify a distance or quantity
pertaining to the escape sequence, control function or control string.
Ps Selective parameter, or one which identifies a list of options pertaining to
the specific command. If ">" (3/14) or "?" (3/15) occurs at the beginning
of a string of parameters, the parameters that follow are Digital private
parameters. ">" or "?", if present, must occur only once at the beginning of
the parameter string.
I
n
Intermediate character — component of an escape sequence, control sequence
or control string
F Final character — component of an escape sequence, control sequence or
control string
SP Space (2/0)
Note Both numeric and selective parameters are interpreted as unsigned decimal
integers, with the most significant digit sent first. For instance, the value 16 is
coded as "16" (3/1 3/6). Leading zeros are allowed but are ignored. Plus and
minus signs are not allowed.
Table C–2 Positioning Controls
DECCAHT Clear All Horizontal
Tabs
ESC 2
DECCAVT Clear All Vertical Tabs ESC 4
DECSHTS Set Horizontal Tab Stops CSI Pn ;...; Pn u Pn = tabstop position
DECSVTS Set Vertical Tab Stops CSI Pn ;...; Pn v Pn = tabstop position
DECHTS Horizontal Tab Set ESC 1
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C–2 DEC PPL2 Quick Reference