From e648f22b9ab776929c1c10dc0d365addbb164ce6 Mon Sep 17 00:00:00 2001
From: David Chambers <David.Chambers.05@gmail.com>
Date: Tue, 17 Apr 2012 00:43:22 -0700
Subject: [PATCH] invoke methods at any depth

---
 README.md                     | 6 ++++--
 spec/stringformat_spec.coffee | 1 +
 string-format.coffee          | 5 ++++-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index a9df66f..167229d 100644
--- a/README.md
+++ b/README.md
@@ -79,8 +79,10 @@ me = name: "David", dob: new Date "26 Apr 1984"
 "{name} was born in {dob.getFullYear}".format(me)
 # "David was born in 1984"
 
-"{pop}{pop}{pop}".format(["one", "two", "three"])
-# "threetwoone"
+sheldon = quip: -> "Bazinga!"
+
+"I've always wanted to go to a goth club. {quip.toUpperCase}".format(sheldon)
+# "I've always wanted to go to a goth club. BAZINGA!"
 ```
 
 ### String.prototype.format.transformers
diff --git a/spec/stringformat_spec.coffee b/spec/stringformat_spec.coffee
index c9e4757..2b1b574 100644
--- a/spec/stringformat_spec.coffee
+++ b/spec/stringformat_spec.coffee
@@ -52,6 +52,7 @@ describe 'String::format', ->
     '{0.toUpperCase}'.format('iii').should_be 'III'
     '{0.getFullYear}'.format(new Date '26 Apr 1984').should_be '1984'
     '{pop}{pop}{pop}'.format(['one', 'two', 'three']).should_be 'threetwoone'
+    '{quip.toUpperCase}'.format(quip: -> 'Bazinga!').should_be 'BAZINGA!'
 
   String::format.transformers.s = -> 's' unless +this is 1
 
diff --git a/string-format.coffee b/string-format.coffee
index d56a800..dae0466 100644
--- a/string-format.coffee
+++ b/string-format.coffee
@@ -29,8 +29,11 @@ lookup = (object, key) ->
   unless /^(\d+)([.]|$)/.test key
     key = '0.' + key
   while match = /(.+?)[.](.+)/.exec key
-    object = object[match[1]]
+    object = resolve object, match[1]
     key = match[2]
+  resolve object, key
+
+resolve = (object, key) ->
   value = object[key]
   if typeof value is 'function' then value.call object else value