User`s guide

50 Agilent VISA User’s Guide
3 Programming with VISA
\" Sends the ASCII double quote character.
\\ Sends a backslash character.
Table 14 Examples of Expressions and Matches
Example Expression Sample Matches
GPIB?*INSTR Matches GPIB0::2::INSTR, GPIB1::1::1::INSTR, and
GPIB-VXI1::8::INSTR
GPIB[0-9]*::?*INSTR Matches GPIB0::2::INSTR and GPIB1::1::1::INSTR but
not GPIB-VXI1::8::INSTR
GPIB[0-9]::?*INSTR Matches GPIB0::2::INSTR and GPIB1::1::1::INSTR but
not GPIB12::8::INSTR
GPIB[^0]::?*INSTR Matches GPIB1::1::1::INSTR but not GPIB0::2::INSTR
or GPIB12::8::INSTR
VXI?*INSTR Matches VXI0::1::INSTR but not
GPIB-VXI0::1::INSTR
GPIB-VXI?*INSTR Matches GPIB-VXI0::1::INSTR but not
VXI0::1::INSTR
?*VXI[0-9]*::?*INSTR Matches VXI0::1::INSTR and GPIB-VXI0::1::INSTR
ASRL[0-9]*::?*INSTR Matches ASRL1::INSTR but not VXI0::5::INSTR
ASRL1+::INSTR Matches ASRL1::INSTR and ASRL11::INSTR but not
ASRL2::INSTR
(GPIB|VXI)?*INSTR Matches GPIB1::5::INSTR and VXI0::3::INSTR but not
ASRL2::INSTR
(GPIB0|VXI0)::1::INSTR Matches GPIB0::1::INSTR and VXI0::1::INSTR
?*INSTR Matches all INSTR (device) resources
?*VXI[0-9]*::?*MEMACC Matches VXI0::MEMACC and GPIB-VXI1::MEMACC
VXI0::?* Matches VXI0::1::INSTR, VXI0::2::INSTR, and
VXI0::MEMACC
?* Matches all resources
Table 13 Descriptions of Special Characters and Operators