Question

Can I create a custom snippet that takes a parameter that is replaced multiple times inside the code?

I tried something like:

<#class#> instanceOf<#class#>;

but it doesn’t replace both class placeholders when I insert the snippet and write over the first parameter.

Answer 1

This is not possible in Xcode 4.x at the time of writing (Sept. 2011).

If you want this feature back in Xcode 4.x, please go to bugreport.apple.com and report a duplicate for this rdar that I just preported:

Summary: Xcode 4 snippets with tokens of same name should sync
while filling one of them.

Steps to Reproduce:
1. Define this snippet: extern NSString * const <#constant#>;
NSString * const <#constant#> = @"<#constant#>";

1. Drop it into your code.
2. Hit tab to select instance of token <#constant#>.
3. Type “NSMySuperCoolConstantString”.

Expected Results:
5. NSString * const <#constant#> = @"<#constant#>"; should turn into
NSString * const NSMySuperCoolConstantString =
@"NSMySuperCoolConstantString"; as it used to do in v3.x.

Actual Results:
5. NSString * const <#constant#> = @"<#constant#>"; stays
unchanged/unsynced.

Regression:

Notes:

Here is the rdar reference for duping:
rdar://10071607

And here a copy on OpenRadar:
http://openradar.appspot.com/radar?id=1327411

---

While you’re at it: Feel free to dupe this rdar as well:

“Xcode 4: snippet functionality regressions”
rdar://9192757
http://openradar.appspot.com/9192757