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