$default_path = ""
[System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null
while(1)
{
  $Path ="D:\"
  $Filter = '*.*'
  $_Debug = 0
  $DEBUG_LEVEL = 0
 
  
  Write-Host "请选择要搜索的文件夹路径：例如  D:\test"
  if ($_Debug) {
     $Path = "D:\___sv_cpp_py\vcs\uvm-1.2\src"
  } else {
     #$Path = Read-Host
     
     $objForm = New-Object System.Windows.Forms.FolderBrowserDialog
     $objForm.RootFolder = "MyComputer"
     $objForm.Description = "选择需要搜索的文件夹： "
     $objForm.ShowNewFolderButton = "true"
     $objForm.SelectedPath = "d:\___sv_cpp_py\vcs"
     
     if($default_path -eq ""){
	 }else {
	   $objForm.SelectedPath = $default_path
	 }
     $Show = $objForm.ShowDialog()
	 
     If ($Show -eq "OK")
     {
       #Return $objForm.SelectedPath
       $Path = $objForm.SelectedPath
	   $default_path = $objForm.SelectedPath
     }
     Else
     {
      Write-Warning 'Cancelled'
     }

  }
  #if([String]::IsNullOrEmpty($Path))
  
  if(!(Test-Path $Path))
  {
     $Path =".\"
     Write-Host "您输入文件夹路径不存在，取当前目录查找：Path = "$Path
  }

  Write-Host ""
  Write-Host ""
  Write-Host "Path   = " $Path

  if ($_Debug) {
     $MySearchString_tmp = "domain "
  } else {
     Write-Host "请输入要搜索的字符串："
     $MySearchString_tmp = Read-Host
  }

  while([String]::IsNullOrEmpty($MySearchString_tmp))
  {
     Write-Host "The string is null or empty."
     Write-Host "请重新输入要搜索的字符串："
     $MySearchString_tmp = Read-Host
  }

  Write-Host "String = " $MySearchString_tmp
  Write-Host ""
  Write-Host ""

  $mySearchStr = $MySearchString_tmp.split(" "); # get -rwi option , just like  grep aaa -rwi *;
  Foreach($split_ele in $mySearchStr)
  {  
  #    write-host "split_ele=" $split_ele
  }
  
  

             $MySearchString_tmp        = $mySearchStr[0]
             $MySearchString_option_rwi = $mySearchStr[1]
  Write-Host "MySearchString_tmp        =" $MySearchString_tmp
  Write-Host "MySearchString_option_rwi =" $MySearchString_option_rwi
  # 电锯惊魂
  # $MySearchString = "*Mad.Max.1979.*"
  $MySearchString    = "*$MySearchString_tmp*"
  $MySearchString_w  = "\b$MySearchString_tmp\b"
  $MySearchString_i  = "$MySearchString_tmp"
  $MySearchString_wi = "\b$MySearchString_tmp\b"
  Write-Host "MySearchString            =" $MySearchString
  Write-Host "MySearchString_w          =" $MySearchString_w
  Write-Host "MySearchString_i          =" $MySearchString_i
  Write-Host "MySearchString_wi         =" $MySearchString_wi
  
 function processing_grep(  $file ){
  ### Write-Host "Processing :    $file "
 
      if($DEBUG_LEVEL -gt 0) { write-host "file_name=" $file }
  　　$tmpContent = Get-Content $file
      if($DEBUG_LEVEL -gt 0) {write-host "file_length="  $tmpContent.length }
      if($tmpContent.length -gt 0){
  　　    for ($i=0; $i -le $tmpContent.length; $i++)
  　　    {
  　　    　　if($MySearchString_option_rwi -match "wi")　{
                if($DEBUG_LEVEL -gt 0) { Write-Host "++++++++++MySearchString_wi  like wi +++++++++++" }
                #exit
          
  　　    　　  if($tmpContent[$i] -cmatch $MySearchString_wi)　
  　　    　　   {
  　　    　　  　　#write-host ""
  　　    　　  　　#write-host $file
  　　    　　  　　write-host $file " : " $i " : " $tmpContent[$i] -ForegroundColor yellow -background black
                    $found = 1;
  　　    　　   }
               } elseif  ($MySearchString_option_rwi -match "i")　{
  　　    　　  if($tmpContent[$i] -cmatch $MySearchString_i)　
  　　    　　   {
  　　    　　  　　#write-host ""
  　　    　　  　　#write-host $file
  　　    　　  　　write-host $file " : " $i " : " $tmpContent[$i] -ForegroundColor yellow -background black
                    $found = 1;
  　　    　　   }
               } elseif  ($MySearchString_option_rwi -match "w")　{
  　　    　　  if($tmpContent[$i] -match $MySearchString_w)　
  　　    　　   {
  　　    　　  　　#write-host ""
  　　    　　  　　#write-host $file
  　　    　　  　　write-host $file " : " $i " : " $tmpContent[$i] -ForegroundColor yellow -background black
                    $found = 1;
  　　    　　   }
               } else　{
  　　    　　  if($tmpContent[$i] -like "$MySearchString")　
  　　    　　   {
  　　    　　  　　#write-host ""
  　　    　　  　　#write-host $file
  　　    　　  　　write-host $file " : " $i " : " $tmpContent[$i] -ForegroundColor yellow -background black
                    $found = 1;
  　　    　　   }
               }#if -wi
  　　     }#for
        }#if tmpContent.length
  }

 
  $found = 0;
  #只显示文件，不显示文件夹
 
,@(Get-ChildItem -Path $Path -Filter $Filter -Recurse | ?{$_.PsIsContainer -eq $false} | %{processing_grep $_.FullName} )
 
  if ($found -eq 0)
  {
      write-host "没有找到您查找的字符串，请重新输入吧，O(∩_∩)O~ "  -ForegroundColor red -background black
  }
   

  cmd /c "pause" 
  # Start-Sleep -s 10
}
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