[英]Passing string included : signs to -Replace Variable in powershell script
[英]Batch file: How to replace “=” (equal signs) and a string variable?
除了SED,如何更換等號? 如何在字符串替換中使用字符串變量?
考慮這個例子:
For /F "tokens=*" %%B IN (test.txt) DO (
SETLOCAL ENABLEDELAYEDEXPANSION
SET t=is
SET old=%%B
SET new=!old:t=!
ECHO !new!
ENDLOCAL
)
:: SET new=!old:==!
兩個問題:
首先,我不能在!:=!中使用變量%t%。
SET t=is
SET old=%%B
SET new=!old:t=!
其次,我無法替換命令行中的等號
SET new=!old:==!
我剛剛為此創建了一個簡單的解決方案,也許它可以幫到某個人。
缺點(或優勢,取決於你想要做什么)是一個接一個地處理多個等號,就像一個單一的等號。 (例如:“str == ing”給出與“str = ing”相同的輸出)
@echo off
set "x=this is=an test="
echo x=%x%
call :replaceEqualSign in x with _
echo x=%x%
pause&exit
:replaceEqualSign in <variable> with <newString>
setlocal enableDelayedExpansion
set "_s=!%~2!#"
set "_r="
:_replaceEqualSign
for /F "tokens=1* delims==" %%A in ("%_s%") do (
if not defined _r ( set "_r=%%A" ) else ( set "_r=%_r%%~4%%A" )
set "_s=%%B"
)
if defined _s goto _replaceEqualSign
endlocal&set "%~2=%_r:~0,-1%"
exit /B
如您所見,您使用如下函數:
call :replaceEqualSign in variableName with newString
如果%% B包含舊的= %% B分配,則應移動setlocal enableDelayedExpansion
!
。
通過使用另一個FOR變量,“t”問題很容易在循環內解決
For /F "tokens=*" %%B IN (test.txt) DO (
SET t=is
SET old=%%B
SETLOCAL ENABLEDELAYEDEXPANSION
for /f %%T in ("!t!") do SET new=!old:%%T=!
ECHO !new!
ENDLOCAL
)
替換=
沒有簡單的本地批處理解決方案。 你可以逐個字符地遍歷字符串,但這很慢。 您最好的選擇可能是切換到VBScript或JScript,或使用非本機實用程序。
如果您真的想使用純Windows批處理命令執行此操作,請參閱http://www.dostips.com/forum/viewtopic.php?t=1485上的一些有趣的想法。
更新 :最新版本的腳本在這里: https : //sf.net/p/contools (腳本在這里: https : //sf.net/p/contools/contools/HEAD/tree/trunk/Scripts/Tools/std / )
您可以使用某些序列來臨時替換占位符,例如?00,?01,?02和?03。 我基本上使用這些腳本集:
replace_sys_chars.bat:
@echo off
rem Description:
rem Script to replace ?, !, %, and = characters in variables by respective
rem ?00, ?01, ?02 and ?03 placeholders.
setlocal DISABLEDELAYEDEXPANSION
set "__VAR__=%~1"
if "%__VAR__%" == "" exit /b 1
rem ignore empty variables
call set "STR=%%%__VAR__%%%"
if "%STR%" == "" exit /b 0
set ?01=!
call set "STR=%%%__VAR__%:?=?00%%"
set "STR=%STR:!=?01%"
setlocal ENABLEDELAYEDEXPANSION
set STR=!STR:%%=?02!
set "STR_TMP="
set INDEX=1
:EQUAL_CHAR_REPLACE_LOOP
set "STR_TMP2="
for /F "tokens=%INDEX% delims== eol=" %%i in ("/!STR!/") do set STR_TMP2=%%i
if "!STR_TMP2!" == "" goto EQUAL_CHAR_REPLACE_LOOP_END
set "STR_TMP=!STR_TMP!!STR_TMP2!?03"
set /A INDEX+=1
goto EQUAL_CHAR_REPLACE_LOOP
:EQUAL_CHAR_REPLACE_LOOP_END
if not "!STR_TMP!" == "" set STR=!STR_TMP:~1,-4!
(
endlocal
endlocal
set "%__VAR__%=%STR%"
)
exit /b 0
restore_sys_chars.bat:
@echo off
rem Description:
rem Script to restore ?, !, %, and = characters in variables from respective
rem ?00, ?01, ?02 and ?03 placeholders.
setlocal DISABLEDELAYEDEXPANSION
set "__VAR__=%~1"
if "%__VAR__%" == "" exit /b 1
rem ignore empty variables
call set "STR=%%%__VAR__%%%"
if "%STR%" == "" exit /b 0
setlocal ENABLEDELAYEDEXPANSION
set STR=!STR:?02=%%!
set STR=!STR:?03==!
(
endlocal
set "STR=%STR%"
)
set "STR=%STR:?01=!%"
set "STR=%STR:?00=?%"
(
endlocal
set "%__VAR__%=%STR%"
)
exit /b 0
例:
@echo off
setlocal DISABLEDELAYEDEXPANSION
for /F "usebackq tokens=* delims=" %%i in ("test.txt") do (
set VALUE=%%i
call :PROCESS
)
exit /b 0
:PROCESS
if "%VALUE%" == "" exit /b 0
set "VALUE_=%VALUE%"
call replace_sys_chars.bat VALUE_
rem do variable arithmetic here as usual
if not "%VALUE_:?00=%" == "%VALUE_%" echo."%VALUE%" having ?
if not "%VALUE_:?01=%" == "%VALUE_%" echo."%VALUE%" having !
if not "%VALUE_:?02=%" == "%VALUE_%" echo."%VALUE%" having %%
if not "%VALUE_:?03=%" == "%VALUE_%" echo."%VALUE%" having =
rem restore it
call restore_sys_chars.bat VALUE_
echo "VALUE=%VALUE_%"
echo.---
的test.txt:
111/222
AAA=BBB
CCC=%DDD%
EEE=!FFF!
FFF=?00?01?02?03
結果:
"VALUE=111/222"
---
"AAA=BBB" having =
"VALUE=AAA=BBB"
---
"CCC=%DDD%" having %
"CCC=%DDD%" having =
"VALUE=CCC=%DDD%"
---
"EEE=!FFF!" having !
"EEE=!FFF!" having =
"VALUE=EEE=!FFF!"
---
"FFF=?00?01?02?03" having ?
"FFF=?00?01?02?03" having =
"VALUE=FFF=?00?01?02?03"
---
特點 :
為什么不使用Edlin? 我找不到用一個初始文件做這個的方法而且Edlin沒有錯誤,但是用NUL忽略它們: 扼殺,即使在=和!之間存在文件結尾字符,TYPE%0也包含整個文件,在運行后使用批處理文件上的TYPE將不會以相同的方式工作。
@ECHO OFF
GOTO skip
1,1r=!
e
:skip
SET "new==old============="
ECHO %new% > %TEMP%\var.tmp
TYPE %0 > %TEMP%\edlin.tmp
EDLIN %TEMP%\var.tmp < %TEMP%\edlin.tmp > NUL:
SET /P newnew=<%TEMP%\VAR.TMP
ECHO %newnew%
ERASE %TEMP%\VAR.TMP
ERASE %TEMP%\VAR.BAK
ERASE %TEMP%\edlin.tmp
我在另一篇文章中的回答,但也適用於此:
還有一種更容易的選擇。 而不是傳入包含等號的值,而是嘗試使用冒號。 然后,通過修改該值(冒號)的能力,您可以將其轉換回等於。 這是一個例子:
@echo off
set VALUE1=%1
set VALUE2=%VALUE1::==%
echo value1 = %VALUE1%
echo value2 = %VALUE2%
運行批處理文件時,請按以下方式調用它:
C:\>myBatch name:someValue
輸出將是:
value1 = name:someValue
value2 = name=someValue
如果名稱或值包含空格,則還需要解決其他問題。 您需要將整個字符串用雙引號括起來。 但是,那么你有需要擺脫它們的問題。 這也可以處理,如下所示:
@echo off
cls
set PARAM=%1
set BASE=%PARAM:"=%
set PAIR=%BASE::==%
rem Either of these two lines will do the same thing - just notice the 'delims'
rem for /f "tokens=1,2 delims=:" %%a in ("%BASE%") do set NAME=%%a & set VALUE=%%b
rem for /f "tokens=1,2 delims==" %%a in ("%PAIR%") do set NAME=%%a & set VALUE=%%b
for /f "tokens=1,2 delims=:" %%a in ("%BASE%") do set NAME=%%a & set VALUE=%%b
echo param = %PARAM%
echo base = %BASE%
echo pair = %PAIR%
echo name = %NAME%
echo value = %VALUE%
運行此批處理文件時,如下所示:
C:\>myBatch "some name:another value"
輸出將是:
param = "some name:another value"
base = some name:another value
pair = some name=another value
name = some name
value = another value
希望幫助其他人在他們的任務中贏得與批處理文件的斗爭。
邁克五世
我正在研究這個問題,因為我需要在像“test = goingon”這樣的字符串中刪除=我發現調用下一個使用test = goon作為參數的批處理文件,我有參數1,“test”和2,“goon “,在該批處理文件中。
所以:batchfile 1:
@echo off
call test2.bat test=goingon
batchfile2:
echo arg1: %1
echo arg2: %2
結果:
arg1: test
arg2: goingon
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