I can use exclamation mark in percent expand?

[einstein1969]

Hi,

I have the necessity to use the percent expand in a SET with the unary operator "!"

I have tried in this mode but not work. I prefer not use the toggle to disabledelayedexpansion, primarly for performance problem.

It is possible?

Code: Select all

@echo off
setlocal disabledelayedexpansion

set "E=!!"

setlocal enabledelayedexpansion

(
set /a "a=!E!10"
set /a "b=%E%10"
)

echo !a! !b!

result:

Code: Select all

1 10

einstein1969

[penpen]

If you are not allowed to just escape the '!', then you might do it this way:

@echo off
setlocal disabledelayedexpansion

set "E=!"

setlocal enableDelayedExpansion
(
set "a=1"
set /A "b=^!1"
set /A "c=!E!1"
echo(!a!, !b!, !c!
)
endlocal

penpen

[jeb]

Instant extension should work

Code: Select all

set /a "b=%E:!=^!%10"

jeb

[einstein1969]

Thanks penpen and Thanks Jeb.

Work like charm.

I don't probe the simple caret escape!

einstein1969