The first character must be an alphabetic (A-Z, a-z) or an underscore character "_". Subsequent characters can be alphabetic, underscore or numeric (0-9). Variable identifiers are not case sensitive. The maximum length is 32.
Example:
VARIABLE
_flag
Label identifiers consist of alphabetic, underscore or numeric characters, and are not case sensitive. The maximum length is 32.
Example:
label1
100
The following words are reserved:
[Command]
bplusrecv, bplussend, changedir... (see the command list)
[Operator]
and, not, or, xor
[System variable]
groupmatchstr1, groupmatchstr2, groupmatchstr3, groupmatchstr4, groupmatchstr5,
groupmatchstr6, groupmatchstr7, groupmatchstr8, groupmatchstr9, inputstr,
matchstr, param2, param3, param4, param5, param6, param7, param8, param9,
result, timeout, mtimeout