The lines read in from the file are processed by fpp as if it were a part of the current file. See the 'I' and 'Y' options above for more detail. The integer-constant is interpreted as the line number of the next line and the filename is interpreted as the name of the file from where it comes. Conditional selection of source text. There may be more than one elif-part.
Condition is an expression involving fpp constants, macros and intrinsic functions.
Condition expressions are similar to cpp expressions, and may contain any cpp operations and operands with the exception of c long, octal and hexadecimal constants. Details Scope of macro or variable definitions. End of macro definition Macro definition can be of any length and is limited only by the 'newline' symbol. A Macro can be defined in multiple lines. So, the occurrence of a 'newline' without a macro-continuation signifies the end of the macro definition.