Boltek Lightning/2000 - Manual (Page 257)

R E A L - T I M E L I G H T N I N G D E T E C T I O N
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Appendix C
Custom Summary
Language Definition
This is a formal description of the custom summary language,
used in custom summary and status line template files.
The symbol to the left of the ::= sign is replaced by the
symbols to the right of the ::= sign.
Symbols enclosed in curly brackets {} may be repeated any
number of times, including zero times.
The | character represents a choice between two different
sets of symbols.
The < and > signs enclose a symbolic term.
Anything in boldface is to be included exactly as it appears.
<custom summary template> ::= {<statement> | <comment>}
<comment> ::= ; ; ; ; {<alphanumeric character>}
<statement> ::= <command> | <if statement>
<command> ::= # # # #<string> | # # # #<string> ( ( ( ( <expression {, , , ,
<expression>} ) ) ) )
<string> ::= <alphanumeric character> {<alphanumeric
character>}
<if statement> ::=
if if if if <expression> then then then then {<statement>} {elseif elseif elseif elseif
<expression> then then then then {<statement>}} endif endif endif endif |
if if if if <expression> then then then then {<statement>} {elseif elseif elseif elseif
<expression> then then then then {<statement>}} else else else else {<statement>}
endif endif endif endif
<expression> ::= <simple expression> | <simple
expression> <relational operator> <simple expression>
<relational operator> ::= < < < < | > > > > | <= <= <= <= | >= >= >= >= | <> <> <> <> | = = = =