VI regex replace to generate synthesizers from properties.

vi_regex_for_objc_props.txt

Converts properties to synthesizers
1.  :%s/@property (\(.*, \|\).*)\s.*\s\**\(.*\);/@synthesize \2;/g
2.  :%s/@property (\(.*, \|\).*)\s.*\s\**\(.*\);/@synthesize \2 = _\2;/g

Converts properties to release calls
3.  :%s/@property (\(.*, \|\).*)\s.*\s\**\(.*\);/    [_\2 release]; _\2 = nil;/g

Example:

input:

@property (nonatomic, assign) int age;
@property (nonatomic, copy) NSString *lastName;
@property (nonatomic, retain) NSString *firstName;
@property (copy) NSString *someOtherString;

output 1:

@synthesize age;
@synthesize lastName;
@synthesize firstName;
@synthesize someOtherString;

output 2:

@synthesize age = _age;
@synthesize lastName = _lastName;
@synthesize firstName = _firstName;
@synthesize someOtherString = _someOtherString;

output 3:  Obviously this needs to be improved since you only want to release items that were retained
    [_age release]; _age = nil; // bad
    [_lastName release]; _lastName = nil; // bad
    [_firstName release]; _firstName = nil;
    [_someOtherString release]; _someOtherString = nil; // bad