我正在尝试运行Powershell脚本,它将用另一个字符串替换一个字符串的出现。我想从包括中删除尖括号,并用仅带头文件名的双引号替换它们,而在头文件名之前没有文件夹路径。
范例:
#include <a/b/c/def.hpp>
#include <a/b/c/ddd.hpp>
至
#include "def.hpp"
#include "ddd.hpp"
我已经试过了。
(Get-ChildItem -Recurse | Get-Content | Select-String -Pattern "#include <a/b/c/")-replace '#include <a/b/c/(\w+).*/', '#include "'-replace '>','"'
这样,我得到了期望的结果,但是我无法使用该结果并替换源文件中的现有行。
提前致谢。
我必须在一个文件夹中查询多达100个文件。
请提出最佳方法。
INPUT
#include <a0/b/c/d/HeaderFile1.hpp>
#include <a1/b/c/d/HeaderFile2.hpp>
#include <a2/b/c/d/HeaderFile3.hpp>
#include <a3/b/c/d/HeaderFile4.hpp>
#include <a4/b/c/d/HeaderFile5.hpp>
#include <a5/b/c/d/HeaderFile6.hpp>
OUTPUT
#include "HeaderFile1.hpp"
#include "HeaderFile2.hpp"
#include "HeaderFile3.hpp"
#include "HeaderFile4.hpp"
#include "HeaderFile5.hpp"
#include "HeaderFile6.hpp"
最佳答案
我创建了一些包含您的样本的测试文件:
> Select-String file*.cpp -patt 'hpp'
File1.cpp:1:#include <a0/b/c/d/HeaderFile1.hpp>
File2.cpp:1:#include <a1/b/c/d/HeaderFile2.hpp>
File3.cpp:1:#include <a2/b/c/d/HeaderFile3.hpp>
File4.cpp:1:#include <a3/b/c/d/HeaderFile4.hpp>
File5.cpp:1:#include <a4/b/c/d/HeaderFile5.hpp>
File6.cpp:1:#include <a5/b/c/d/HeaderFile6.hpp>
以下脚本使用RegEx在RegEx101上以及静态下面解释的RegEx。
## Q:\Test\2018\06\09\SO_50777494.ps1
## the following RegEx usees a positive lookbehind and a
## capture group for the filename.
[RegEx]$Search = '(?<=#include ).*\/([^>]+)>'
$Replace = '"$1"'
ForEach ($File in (Get-ChildItem -Path '.\File*.cpp' -Recurse -File)) {
(Get-Content $File) -Replace $Search,$Replace |
Set-Content $File
}
替换后的Select-String示例输出:
> sls file*.cpp -patt 'hpp'
File1.cpp:1:#include "HeaderFile1.hpp"
File2.cpp:1:#include "HeaderFile2.hpp"
File3.cpp:1:#include "HeaderFile3.hpp"
File4.cpp:1:#include "HeaderFile4.hpp"
File5.cpp:1:#include "HeaderFile5.hpp"
File6.cpp:1:#include "HeaderFile6.hpp"
正则表达式的说明:
(?<=#include ).*\/([^>]+)>
Positive Lookbehind (?<=#include )
Assert that the Regex below matches
#include matches the characters #include literally
.*
. matches any character (except for line terminators)
* Quantifier — Matches between zero and unlimited times,
as many times as possible, giving back as needed (greedy)
\/ matches the character / literally (case sensitive)
1st Capturing Group ([^>]+)
Match a single character not present in the list below [^>]+
+ Quantifier — Matches between one and unlimited times,
as many times as possible, giving back as needed (greedy)
> matches the character > literally (case sensitive)