labeling procs for debug & <> braces

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edemko

Joined: 18 Jul 2009
Posts: 549

edemko

Code:

;nok
macro proc [args]{
  common
    match name params, args\{
      if used name
        db 0,'proc ', `name, 0
        define@proc name, <params>
      end if
    \}
}


;ok
macro proc [args]{
  common
    match name params, args>\{
      if used name
        db 0,'proc ', `name, 0
        define@proc name, <params
      end if
    \}
}


;Are not both equal?

30 Nov 2010, 08:36

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 7845
Location: Kraków, Poland

Tomasz Grysztar

In first case it is not possible to have only name and no parameters - because "name params" need to match at least two elements (one for "name" and one for "params"), and if only name is provided, the match will not happen.
In second case the ">" artificially provides something to match the "params" even when there is only name provided.

06 Dec 2010, 14:03

edemko

Joined: 18 Jul 2009
Posts: 549

edemko

Thank you.

Macro below was expected to show procedure name.
It does not.
As i know "match name params" denotes local constants.
That's why "display `name" used.
But "namename" visible instead of "p1p2".
Am i wrong here too?

Code:

macro proc [args]{
  common
    match name params, args>\{
      display `name
      define@proc name, <params
    \}
}


proc p1
endp

proc p2
endp

18 Dec 2010, 18:25

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 7845
Location: Kraków, Poland

Tomasz Grysztar

` operator is processed by the outer macro, so it converts the "name" token into string. To make it processed by the inner macro (the "match" one) you need to escape it with backslash:

Code:

display \`name

Now it will convert into string the first token that is there after replacement of "name" with its matched value.

18 Dec 2010, 18:54

edemko

Joined: 18 Jul 2009
Posts: 549

edemko

appreciate that, thanks, final macro:

Code:

macro proc [args]{
  common
    match name params, args>\{
      if used \name
        db 0,'proc ',\`name,0
        define@proc \name, <\params
      end if
    \}
}

19 Dec 2010, 07:33

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