2013-03-21: don’t turn : in explicit brackets or strings into new brackets.

don’t turn : in explicit brackets or strings into new brackets.

diff --git a/example.w b/example.w
--- a/example.w
+++ b/example.w
@@ -9,8 +9,8 @@ do not break me!"
 ; comment
         ` g ; comment
       : 
-        h (I am in brackets
-           do not change me)
+        h (I am in brackets:
+           do not : change "me")
         . i
   , ' j k
 
@@ -20,7 +20,7 @@ do not break me!"
 
   a c
 
-defun b : n o
-  . "second defun, with a docstring!"
+defun b : :n o
+  . "second defun : with a docstring!"
   message "I am here"
   . t
diff --git a/wisp.py b/wisp.py
--- a/wisp.py
+++ b/wisp.py
@@ -66,9 +66,20 @@ class Line:
                 break
         
         # treat inline " : " as opening a bracket which gets closed at the end of the line
-        toclose = self.content.count(" : ")
-        self.content = self.content.replace(" : ", " (")
-        self.content += ")" * toclose
+        bracketstoclose = 0
+        instring = False
+        inbrackets = 0
+        for n, i in enumerate(self.content):
+            if i == '"':
+                instring = not instring
+            if not instring and i == "(":
+                inbrackets += 1
+            elif not instring and i == ")":
+                inbrackets -= 1
+            if not instring and not inbrackets and i == ":" and self.content[n-1:n+2] == " : ":
+                bracketstoclose += 1
+                self.content = self.content[:n] + "(" + self.content[n+1:]
+        self.content += ")" * bracketstoclose
 
         #: Is the line effectively empty?
         self.empty = False