Need Multiline sed help!!


 
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# 1  
Need Multiline sed help!!

Hey everyone, I'm new to sed and I need to create a script for inserting one line of code at the beginning of every method in a Xcode project (over 6,000 methods). Each method Structure is
(+ or -) (Various declarations-- could span multiple lines) ({)

I've tried for days, any guidance would be greatly appreciated!!Smilie

BEFORE:
Code:
- (void)savingErrorDidOccured:(NSError *)error
{
   [SVProgressHUD dismiss]; {
   [Utility displayAlertWithMessage:[error localizedDescription] andTitle:NSLocalizedString(@"Error", @"")];}
}


Code:
- (void)didReceiveMemoryWarning
    SOMETHING SOMETHING :Something Something
    SOMETHING SOMETHING :Something Something {
   [super didReceiveMemoryWarning];
}

AFTER:
Code:
- (void)savingErrorDidOccured:(NSError *)error
{ 
   NEW CODE
   [SVProgressHUD dismiss]; {
   [Utility displayAlertWithMessage:[error localizedDescription] andTitle:NSLocalizedString(@"Error", @"")];}
}


Code:
- (void)didReceiveMemoryWarning
    SOMETHING SOMETHING :Something Something
    SOMETHING SOMETHING :Something Something {
   NEW CODE
  [super didReceiveMemoryWarning];
}

*** This needs to be run on Mac OS X as a script during the Xcode project build Smilie***
Moderator's Comments:
Mod Comment edit by bakunin: On several places we ask to "use CODE tags". Which part of this was so hard to understand? Please view this code tag video for how to use code tags when posting code and data.

Last edited by bakunin; 02-04-2013 at 07:50 PM..
# 2  
How about an awk program:
Code:
awk '/\{/{f=1;}f==1&&/^\[/{p=$0;$0="NEW CODE\n"p;f=0;}1' filename

# 3  
As I'm not sure if the opening square bracket that bipinajith's proposal relys on will always be present, I've come up with:
Code:
awk  '/^\-|^\+/ {intro=1}                          # test for introductory  "-" or "+", remember it
      1                                            # always print actual line
      intro && /\{/ {print "NEW CODE"; intro=0;}   # if intro remembered, and if opening brace found, add new code, and forget intro
     ' file

 

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