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Forum Index : Microcontroller and PC projects : MMBasic: special characters in a string

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PilotPirx

Senior Member

Joined: 03/11/2020
Location: Germany
Posts: 133
Posted: 05:06pm 30 Dec 2024
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Hello,
starting with MMBasic and graphics i got the problem to put special characters (f.e. >127) in a string.
How to define a string with characters which are not on the keyboard?
With the sinclair spectrum you could use caps shift and GRAPHICS to get these characters.
 
twofingers

Guru

Joined: 02/06/2014
Location: Germany
Posts: 1769
Posted: 05:12pm 30 Dec 2024
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special character=chr$(ascii)

or

inc special_character$,chr$(ascii)

inc special_character$, STRING$( nbr, ascii )

ascii= 0 to 255
  Quote  With the sinclair spectrum you could use caps shift and GRAPHICS to get these characters.

There are no keys for these characters in PicoMite.

Michael
Edited 2024-12-31 03:23 by twofingers
‚My name is Ozymandias, king of kings
Look on my works, ye Mighty, and despair!‘
Nothing beside remains. Round the decay
Of that colossal wreck, boundless and bare
The lone and ...
 
JohnS
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Joined: 18/11/2011
Location: United Kingdom
Posts: 4377
Posted: 05:25pm 30 Dec 2024
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Such as:

a = 128
b$ = chr$(a)

You can get at the value again:
c = asc(b$)

(then a and c are the same)

John
 
PilotPirx

Senior Member

Joined: 03/11/2020
Location: Germany
Posts: 133
Posted: 05:32pm 30 Dec 2024
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  Quote  special character=chr$(nbr)

Which means such kind of string is not possible?
Only character=chr$(nbr)+chr$(nbr)+ and so on.
 
JohnS
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Joined: 18/11/2011
Location: United Kingdom
Posts: 4377
Posted: 05:41pm 30 Dec 2024
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  PilotPirx said  Only character=chr$(nbr)+chr$(nbr)+ and so on.

Yes.

Or use a loop.

John
 
disco4now

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Joined: 18/12/2014
Location: Australia
Posts: 1149
Posted: 09:53pm 30 Dec 2024
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Also see Special Characters in Strings on page 23 of the manual. Using OPTION ESCAPE allows their entry in decimal escaped by a backslash.
F4 H7FotSF4xGT
 
phil99

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Joined: 11/02/2018
Location: Australia
Posts: 3374
Posted: 09:59pm 30 Dec 2024
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  twufingers said  inc special_character$,chr$(ascii
and
  Quote  Or use a loop.

so:-
> for n=128 to 138 : inc s$, chr$(n) : next
> for n=1 to 11 : ? asc(mid$(s$,n,1)); : next
128 129 130 131 132 133 134 135 136 137 138
>
 
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