String length

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Jin X

Joined: 06 Mar 2004
Posts: 133
Location: Russia

Jin X 25 Dec 2020, 18:36

How can I count length of string?
I want to show message with dashed lines around.

I came up with this method:

Code:

macro   @error_msg      text
{
  local .strlen
  virtual at 0
    db text
    .strlen = $
  end virtual
  repeat .strlen
    display '-'
  end repeat
  display 10,text,10
  repeat .strlen
    display '-'
  end repeat
  err
}

Maybe there are others (shorter)? Smile

25 Dec 2020, 18:36

DimonSoft

Joined: 03 Mar 2010
Posts: 1228
Location: Belarus

DimonSoft 26 Dec 2020, 08:01

What is your real goal? Are you displaying hyphens for debugging purposes or decorate the output?

If the string shouldn’t be put into the output file, your solution is quite good. The only thing I’d probably avoid is single-dot-prefixing the identifier, just in case some day I expand the macro to do more (since it might be prefixed with the nearest preceding global label name).

P.S. Well, maybe you could make the hyphen printing a separate macro with (two?) parameters. I don’t know if it’s worth doing for your project.

26 Dec 2020, 08:01

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