[fpc-pascal] character escaping with ^LETTER

[Dmitry Boyarintsev]

hmm.. the character escaping is somewhat tricky.
The following code compiles:
writeln(^_^));

thanks,
Dmitry

On Mon, Jan 19, 2015 at 8:17 AM, Dmitry Boyarintsev <
skalogryz.lists at gmail.com> wrote:

> Hello,
>
> today I saw this kind of character escaping:
> var
>   a :char;
> begin
>   a:=^M; // char(13)
>   writeln(^X);  // char(24)
> end;
>
> The code of the character is derived as ord(letter)-ord('A')+1
> Not sure which pascal its inherited from... but Delphi 7 does compile it
> too.
>
> I vaguely remember it seeing before once .. and ... a lot of time ago.
>
> Should it be added to this page:
> http://www.freepascal.org/docs-html/ref/refse8.html#x20-190001.8 ? (need
> a bug report created?) or is it documented somewhere else?
>
> CodeTools syntax highlighter won't recognize the syntax as characters
> either (delphi 7 highlighter doesn't recognize it as a character escaping
> as well)
>
> thanks,
> Dmitry
>
>
>
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