字符串替换（星号）的批处理文件？ [英] String substitution (asterisks) in Batch files?

问题描述

我如何更换的星号的与别的东西，在一个批处理文件中的字符串？

How do I replace an asterisk in a string with something else, in a batch file?

％myvar的正常扩张：=为％似乎并不如工作从是 * 。

即，如果我有：

Set MyVar=From

那么这些不工作：

then these don't work:

Echo %MyVar:*=To%
Echo %MyVar:^*=To%

什么是做正确的方法是什么？

What's the correct way to do this?

推荐答案

像一个Sorpigal，但这种手柄文字与星和聚星更换开端，它并不失败，报价一个解决方案。

A solution like the one of Sorpigal, but this handles also text beginning with stars and multiple stars to replace, and it doesn't fail with quotes.

@echo off
setlocal EnableDelayedExpansion
rem replace all "*" with "."
set "replace=."
set "var=*One**two***three"

rem Add dummy char to accept also a star in front
set "var=#!var!"
:replaceLoop
for /F "tokens=1 delims=*" %%A in ("!var!") do (
  set "prefix=%%A"
  set "rest=!var:*%%A=!"
  if defined rest (
    set "rest=!REPLACE!!rest:~1!"
    set Again=1
  ) else set "Again="
  set "var=%%A!rest!"
)
if defined again goto :replaceLoop
set "var=!var:~1!"
echo !var!
exit /b

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