flat assembler - macro argument angle brackets

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Index > Compiler Internals > macro argument angle brackets - bug?

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Mike Gonta

Joined: 26 Dec 2010
Posts: 243

Mike Gonta 27 Sep 2017, 17:47

fasmg manual wrote:

If an argument to macroinstruction needs to contain a comma character, the
entire argument must be enclosed between the "<" and ">" characters (they do
not become a part of the value). If another "<" character is encountered inside
such value, it must be balanced with corresponding ">" character inside the
same value.

Nested angle brackets is an Error: invalid expression.

Code:

  some_macro <1,<2,3>>

fasmg hxhsr and fasm 1.71.64.

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27 Sep 2017, 17:47

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8359
Location: Kraków, Poland

Tomasz Grysztar 27 Sep 2017, 19:04

This works with no problem for me:

Code:

macro some_macro arg
        display `arg
end macro

some_macro <1,<2,3>>

Code:

flat assembler  version g.hxhsr
1,<2,3>
1 pass, 0 bytes.

The nesting is only needed when there is another, deeper layer of macros that need inner enclosing. This is how it works:

Code:

macro some_macro arg
        outer_list_macro arg
end macro

macro outer_list_macro args&
        iterate arg, args
                inner_list_macro arg
        end iterate
end macro

macro inner_list_macro args&
        display 'inner list: ',`args,13,10
        iterate arg, args
                db arg
        end iterate
end macro


some_macro <1,<2,3>>

27 Sep 2017, 19:04

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