From: 7stud -- <bbxx789_05ss@...>
Date: 2009-09-10T14:37:22+09:00
Subject: Re: regex: multiline

Ahmet Kilic wrote:
> Hello,
> 
> I am trying regex samples on this page
> http://gnosis.cx/publish/programming/regular_expressions.html.
> My problem is, how can I grep multiline with regex?
> 
> This is my example;
> ...
>  *****************************************************************************)
> function TfrmExecMain.SetPrivilege(PrivilegeName: String;
>   Enable: Boolean): Boolean;
> var
>   tpPrev,
>   tp         : TTokenPrivileges;
>   token      : THandle;
>   dwRetLen   : DWord;
> begin
> ...
> I want to print some parts of this.
> 
> for example;
>  if function=~/\b(^function)\s+(\w+)/
> print this part===> : Boolean;
>  end
> if line.match(/var/) and line.match(/begin/)
>  print this part ==> : TTokenPrivileges;
>  print this part ==> : THandle;
>  and print this  ==> : DWord;
> end
> 
> How can i do it?


str = <<ENDOFSTRING
function TfrmExecMain.SetPrivilege(PrivilegeName: String;
Enable: Boolean): Boolean;
var
  tpPrev,
  tp         : TTokenPrivileges;
  token      : THandle;
  dwRetLen   : DWord;
begin
ENDOFSTRING

md = str.match(/function.*?\):\s+(.*?;)/m)
if md
  puts md[1]
end

--output:--
Boolean;



results = []
should_parse = false

str.each_line do |line|
  line = line.chomp

  if line == "var"
    should_parse = true
  elsif line == "begin"
    should_parse = false
  end

  if should_parse
    line.scan(/\w+;$/) do |match|
      results << match
    end
  end
end

p results

--output:--
["TTokenPrivileges;", "THandle;", "DWord;"]

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