From: Jean Privat <jean@pryen.org>
Date: Wed, 27 Aug 2014 02:11:56 +0000 (-0400)
Subject: lib/string: redefine [] for FlatString and FlatBuffer without using chars
X-Git-Tag: v0.6.8~7^2~2
X-Git-Url: http://nitlanguage.org

lib/string: redefine [] for FlatString and FlatBuffer without using chars

Signed-off-by: Jean Privat <jean@pryen.org>
---

diff --git a/lib/standard/string.nit b/lib/standard/string.nit
index 5a0c039..e4423d3 100644
--- a/lib/standard/string.nit
+++ b/lib/standard/string.nit
@@ -856,6 +856,15 @@ class FlatString
 
 	redef var chars: SequenceRead[Char] = new FlatStringCharView(self)
 
+	redef fun [](index)
+	do
+		# Check that the index (+ index_from) is not larger than indexTo
+		# In other terms, if the index is valid
+		assert index >= 0
+		assert (index + index_from) <= index_to
+		return items[index + index_from]
+	end
+
 	################################################
 	#       AbstractString specific methods        #
 	################################################
@@ -1278,6 +1287,13 @@ class FlatBuffer
 
 	redef fun substrings do return new FlatSubstringsIter(self)
 
+	redef fun [](index)
+	do
+		assert index >= 0
+		assert index  < length
+		return items[index]
+	end
+
 	redef fun []=(index, item)
 	do
 		is_dirty = true