Следующий .batскрипт может помочь. Комментарии ::или remстроки для лучшего понимания.
Я не знаю regexpподдержки в cmd; следовательно, определенная строка анализируется на символьной основе в :convrtподпрограмме (обратите внимание на ложный результат, если %в строке, предоставленной для разбора, присутствует какой-либо знак процента).
@ECHO OFF >NUL
@SETLOCAL enableextensions
:: all `echo` lines for debugging purposes only (remove no sooner than debugged)
:::: set "_ALLOWED=abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ.0123456789"
:::: set "_REPLWITH=-"
:: next setting suffice as '%variable:StrToFind=NewStr%' is case insensitive
set "_ALLOWED=ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789-"
:: note a blank space in the above line (with no full stop)
:: note last character of %_ALLOWED% value used to be the replace one as follows
set "_REPLWITH=%_ALLOWED:~-1%"
:: a filename sample (no extension) to be converted
:: containing some batch-exceptional characters
SET "_sample=AÄaá^ cč^DĎ(1!)&°~!.foo~bar"
call :convrt _ELPAMS _sample
:: next lines show an intentional usage (with no subfolder recursion)
pushd "D:\bat\Unusual Names"
:: create a particular file of an unusual name: echo _sample "%_sample%">"%_sample%.txt"
for /F "delims=" %%G in ('dir /B "A*.txt"') do (
echo(
set "_sample=%%~nG"
call :convrt _ELPAMS _sample
call :output "for debugging purposes only"
)
popd
ENDLOCAL
goto :eof
Next :convrt subroutine accepts two parameters (passed by reference):
%1 (output) variable name
%2 (input) variable name
The subroutine will return
- any `~` tilde character unchanged "it's not a bug, it's a feature";
- wrong result for any `%` percent sign present in a file name.
:convrt
SETLOCAL enableextensions disabledelayedexpansion
set "__auxAll=%~2"
call set "__auxAll=%%%~2%%"
echo sub %~2 "%__auxAll%"
set "__result="
:loop
if "%__auxAll%"=="" goto :endconvrt
set "__auxOne=%__auxAll:~0,1%"
set "__auxAll=%__auxAll:~1%"
call set "__changed=%%_ALLOWED:%__auxOne%=%%"
if not "%__changed%"=="%_ALLOWED%" (
set "__result=%__result%%__auxOne%"
) else (
set "__result=%__result%%_REPLWITH%"
)
goto :loop
:endconvrt
echo sub %~1 "%__result%"
ENDLOCAL&call set "%~1=%__result%"
goto :eof
:output
rem echo for _sample "%_sample%"
echo for _ELPAMS "%_ELPAMS%"
goto :eof
Выходной образец. Обратите внимание на %случай (вдумчивый пэчворк):
==>D:\bat\SU\921338.bat
sub _sample "AÄaá^ cč^DĎ(1!)&°~!.foo~bar"
sub _ELPAMS "A-a-- c--D--1----~--foo~bar"
sub _sample "AÄaá^ cč^DĎ(1!)&°~!.foo~bar"
sub _ELPAMS "A-a-- c--D--1----~--foo~bar"
for _ELPAMS "A-a-- c--D--1----~--foo~bar"
sub _sample "AÄzž^ yýS%OS%Š%%OS%%(%1!)&°~%%G!^%~2.foo~bar"
sub _ELPAMS "A-z-- y-S%OS%-%%OS%%-%1----~%%G--%~2-foo~bar"
for _ELPAMS "A-z-- y-SWindows_NT-%OS%-_ELPAMS----~%G--_sample-foo~bar"
Ресурсы (требуется чтение, не полностью):