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scrolling region test
Posted: 03 Sep 2024 04:16
by miskox
Here is a scrolling region test.
Code: Select all
@echo off
mode con cols=80 lines=24
cls
REM Aacini's solution (see below for more info regarding this correction)
for /f %%a in ('echo prompt $E^| cmd') do set "ESC=%%a"
echo S C R O L L I N G T E S T
echo %esc%[21;0H======================================================================
echo S C R O L L I N G T E S T
REM set scrolling region lines 10-20
echo %esc%[10;20r
echo %esc%[9;0H======================================================================
for /L %%f in (100,1,120) do echo %%f&timeout /T 1 >nul
echo %esc%[22;0H
Output (shortened to fit):
Code: Select all
S C R O L L I N G T E S T
======================================================================
100
101
102
103
104
105
106
107
======================================================================
S C R O L L I N G T E S T
and when finished:
Code: Select all
S C R O L L I N G T E S T
======================================================================
111
112
113
114
115
116
117
118
119
120
======================================================================
S C R O L L I N G T E S T
Saso
Updated: Aacini is the author of the way how ESC gets into a variable. Source updated. See below. Aacini: I am very sorry. This was not intentional.
Re: scrolling region test
Posted: 05 Sep 2024 21:49
by Aacini
Interesting!
I translated your code to printf.exe (version 2.81 with \e as ESC and enabled Virtual Terminal Processing). Here it is:
Code: Select all
@echo off
mode con cols=80 lines=24
cls
printf "%%s\n" /* format to show strings */ ^
" S C R O L L I N G T E S T" OUT ^< ^
"\e[21;0H======================================================================" OUT ^< ^
" S C R O L L I N G T E S T" OUT ^< ^
"\e[10;20r" OUT ^< /* set scrolling region lines 10-20 */ ^
"\e[9;0H======================================================================" OUT ^< ^
1000 ]0 ^< /* milliseconds to wait in GETK? */ ^
FMT{ "%%i\n" 100 ( OUT ++ 120 ^<=x? ^< ( GETK?:0 ) : ) FMT} ^
"\e[22;0H" OUT
Antonio
PS - I wonder why you called the method to get the ESC character "Jeb's solution"...
Re: scrolling region test
Posted: 05 Sep 2024 23:07
by miskox
Aacini wrote: ↑05 Sep 2024 21:49
PS - I wonder why you called the method to get the ESC character "Jeb's solution"...
Because:
https://ss64.com/nt/syntax-ansi.html
where it says:
A batch file to save the ESC character in a variable %ESC% (via Jeb on the forum)
Did I miss something?
Saso
Re: scrolling region test
Posted: 09 Sep 2024 14:02
by Aacini
miskox wrote: ↑05 Sep 2024 23:07
Did I miss something?
Saso
Mmm... Maybe you missed
this reply where I posted such a method for the first time more than 7 years ago...
Such topic, posted on 2017/Aug/22, is particularly interesting. At the beginning, IcarusLives shows an example where he inserts a hardcoded ESC character into the program. Then, penpen suggests using the strange method to get an ESC based on a
for %%b in (1) do rem command that was commonly used at the time. After that, I present the method that everyone is using now:
Code: Select all
for /F %%a in ('echo prompt $E^| cmd') do set "ESC=%%a"
The funny thing is that a couple of replies below my post there is a
reply from yourself addressed to me!
Yes, I think you did miss several things...
Antonio
Re: scrolling region test
Posted: 10 Sep 2024 00:19
by miskox
Antonio, I am very sorry. I really did not read that topic again - I just assumed that SS64's information is correct. Please accept my sincere apology. I didn't want to give credit to a wrong person. Then I guess Simon (SS64) should correct that info.
Saso
Re: scrolling region test
Posted: 10 Sep 2024 14:34
by Aacini
miskox wrote: ↑10 Sep 2024 00:19
Then I guess Simon (SS64) should correct that info.
Saso
Yes, he already did...
Thanks a lot!
Antonio
Re: scrolling region test
Posted: 11 Sep 2024 14:36
by Sponge Belly
Hi All,
Ed Dyreen and Dave Benham discussed capturing the backspace character in the
Send Backspace Key in Batch topic as far back as 2012.
HTH!
- SB
Re: scrolling region test
Posted: 11 Sep 2024 15:35
by Aacini
Yes, you are right Sponge Belly.
Ed Dyrenn first proposed this method:
Code: Select all
for /f "delims=#" %%a in (
'"prompt #$H# &echo on &for %%b in (1) do rem"'
) do (
set "%$Defines%=%%a"
set "%$Defines%=!$BS:~0,1!"
)
... and then
dbenham suggested this simplification:
Code: Select all
for /f %%a in ('"prompt $H&for %%b in (1) do rem"') do set "BS=%%a"
This last code was widely used until I posted my method in 2017:
Code: Select all
for /F %%a in ('echo prompt $E^| cmd') do set "ESC=%%a"
... that was the point we are talking about in the replies above...
Antonio
Re: scrolling region test
Posted: 12 Sep 2024 11:10
by jeb
Hi,
a bit nitpicking
new functions: :chr, :asc, :asciiMap (Fri Apr 01, 2011 10:34 pm)
I probably developed the ESC, DEL and CR (buffer overflow) technique, but the rest was just a copy and paste.
jeb