diff --git a/generators/input_loader.rb b/generators/input_loader.rb
index de15424499157cb3c0926bc6cdf429dd03c10296..029172e265f5ea1b5623412993e822b85f8d60fb 100755
--- a/generators/input_loader.rb
+++ b/generators/input_loader.rb
@@ -30,22 +30,22 @@ class ::Hash
     self.merge(other_hash, &merger)
   end
 
-  # Merge keys that match "PREFIX-<a-b>" with others keys that begins by "PREFIX-" 
+  # Merge keys that match "PREFIX-[a-b]" with others keys that begins by "PREFIX-" 
   # and that ends with x, where a<=x<=b.
   # - This is done recursively (for this Hash and every Hashes it may contain).
-  # - PREFIX-<a-b> values have lower priority on existing PREFIX-x keys.
-  # - "a" and/or "b" may be omited (ie. "PREFIX-<a->", "PREFIX-<-b>" or "PREFIX-<->"), meaning that there are no lower and/or upper bound for x.
+  # - PREFIX-[a-b] values have lower priority on existing PREFIX-x keys.
+  # - "a" and/or "b" may be omited (ie. "PREFIX-[a-]", "PREFIX-[-b]" or "PREFIX-[-]"), meaning that there are no lower and/or upper bound for x.
   #   * If only a is omited, a == 1.
-  #   * If b is omited, only existing keys are modified (no keys are created). Otherwise, PREFIX-<a> to PREFIX-<b> entries are created (if missing).
+  #   * If b is omited, only existing keys are modified (no keys are created). Otherwise, PREFIX-[a] to PREFIX-[b] entries are created (if missing).
   # Example:
-  # {"foo-1": {a: 0}, "foo-2": {a: 0}, "foo-3": {a: 0}, "foo-<2->": {b: 1}}.expand_angle_brackets()
+  # {"foo-1": {a: 0}, "foo-2": {a: 0}, "foo-3": {a: 0}, "foo-[2-]": {b: 1}}.expand_angle_brackets()
   #  -> {"foo-1": {a: 0}, "foo-2": {a: 0, b:1},  "foo-3": {a: 0, b: 0}}
   def expand_angle_brackets()
     dup = self.clone # because can't add a new key into hash during iteration
 
-    # Looking up for PREFIX-<a-b> keys
+    # Looking up for PREFIX-[a-b] keys
     dup.each { |key_ab, value_ab|
-      prefix, a, b = key_ab.to_s.scan(/^(.*)-<(\d*)-(\d*)>$/).first
+      prefix, a, b = key_ab.to_s.scan(/^(.*)-\[(\d*)-(\d*)\]$/).first
       next if not a and not b # not found
       a != "" ? a = a.to_i : a = 1
       b != "" ? b = b.to_i : b
@@ -74,7 +74,7 @@ class ::Hash
         }
       end
           
-      # Delete entry "PREFIX-<a-b>"
+      # Delete entry "PREFIX-[a-b]"
       self.delete(key_ab)
     }
 
diff --git a/generators/input_loader_tests.rb b/generators/input_loader_tests.rb
index 7abaa80f59dcd69b0b3c5d2bc574eddfc071fa9b..2040f4e01766b4137b7e0d1020adaf61fe74fc65 100644
--- a/generators/input_loader_tests.rb
+++ b/generators/input_loader_tests.rb
@@ -56,7 +56,7 @@ class TestInputLoader < Test::Unit::TestCase
       "foo-1": {a: 0}, 
       "foo-2": {a: 0}, 
       "foo-3": {a: 0}, 
-      "foo-<2->": {b: 1}
+      "foo-[2-]": {b: 1}
     }
     
     expected_expanded_hash = {
@@ -70,8 +70,8 @@ class TestInputLoader < Test::Unit::TestCase
 
   # The 'a' parameter
   def test__expand_angle_brackets__a_values
-    assert_equal_expanded_hash({"foo-<-3>": 0},  {"foo-1": 0, "foo-2": 0, "foo-3": 0}) # Default 'a' value is 1
-    assert_equal_expanded_hash({"foo-<2-3>": 0}, {"foo-2": 0, "foo-3": 0})             # Simply check if the value of 'a' is taken into account
+    assert_equal_expanded_hash({"foo-[-3]": 0},  {"foo-1": 0, "foo-2": 0, "foo-3": 0}) # Default 'a' value is 1
+    assert_equal_expanded_hash({"foo-[2-3]": 0}, {"foo-2": 0, "foo-3": 0})             # Simply check if the value of 'a' is taken into account
   end
 
   def test__expand_angle_brackets__create_keys
@@ -80,26 +80,26 @@ class TestInputLoader < Test::Unit::TestCase
     #
 
     # With symbol keys and numeric values
-    assert_equal_expanded_hash({"foo-<2-3>": 0}, {"foo-2": 0, "foo-3": 0})
-    assert_equal_expanded_hash({"foo-<-2>": 0},  {"foo-1": 0, "foo-2": 0})
+    assert_equal_expanded_hash({"foo-[2-3]": 0}, {"foo-2": 0, "foo-3": 0})
+    assert_equal_expanded_hash({"foo-[-2]": 0},  {"foo-1": 0, "foo-2": 0})
 
     # With symbol keys and hash values
-    assert_equal_expanded_hash({"foo-<2-3>": {a: 0}}, {"foo-2": {a: 0}, "foo-3": {a: 0}})
-    assert_equal_expanded_hash({"foo-<-2>":  {a: 0}}, {"foo-1": {a: 0}, "foo-2": {a: 0}})
+    assert_equal_expanded_hash({"foo-[2-3]": {a: 0}}, {"foo-2": {a: 0}, "foo-3": {a: 0}})
+    assert_equal_expanded_hash({"foo-[-2]":  {a: 0}}, {"foo-1": {a: 0}, "foo-2": {a: 0}})
     
     # With string keys and numeric values
-    assert_equal_expanded_hash({"foo-<2-3>" => 0}, {"foo-2" => 0, "foo-3" => 0})
-    assert_equal_expanded_hash({"foo-<-2>"  => 0}, {"foo-1" => 0, "foo-2" => 0})
+    assert_equal_expanded_hash({"foo-[2-3]" => 0}, {"foo-2" => 0, "foo-3" => 0})
+    assert_equal_expanded_hash({"foo-[-2]"  => 0}, {"foo-1" => 0, "foo-2" => 0})
         
     # With string keys and hash values
-    assert_equal_expanded_hash({"foo-<2-3>" => {a: 0}}, {"foo-2" => {a: 0}, "foo-3" => {a: 0}})
-    assert_equal_expanded_hash({"foo-<-2>"  => {a: 0}}, {"foo-1" => {a: 0}, "foo-2" => {a: 0}})
+    assert_equal_expanded_hash({"foo-[2-3]" => {a: 0}}, {"foo-2" => {a: 0}, "foo-3" => {a: 0}})
+    assert_equal_expanded_hash({"foo-[-2]"  => {a: 0}}, {"foo-1" => {a: 0}, "foo-2" => {a: 0}})
     
     #
     # If 'b' is not given, do not create any new key
     #
-    assert_equal_expanded_hash({"foo-<->": 0}, {})   # All
-    assert_equal_expanded_hash({"foo-<2->": 0}, {})
+    assert_equal_expanded_hash({"foo-[-]": 0}, {})   # All
+    assert_equal_expanded_hash({"foo-[2-]": 0}, {})
 
   end
 
@@ -109,17 +109,17 @@ class TestInputLoader < Test::Unit::TestCase
     #
 
     [0, {h: 0}].each { |v|
-      assert_equal_expanded_hash({"foo-<1-3>": v, "foo-2": 1}, {"foo-1": v, "foo-2": 1, "foo-3": v}) # b given
-      assert_equal_expanded_hash({"foo-<2->":  v, "foo-2": 1}, {"foo-2": 1})                         # b not given 
+      assert_equal_expanded_hash({"foo-[1-3]": v, "foo-2": 1}, {"foo-1": v, "foo-2": 1, "foo-3": v}) # b given
+      assert_equal_expanded_hash({"foo-[2-]":  v, "foo-2": 1}, {"foo-2": 1})                         # b not given 
     }
   end
   
   # Some tests with nil values (=> nil values are created, existing nil values are overriden)
   def test__expand_angle_brackets__nil
-    assert_equal_expanded_hash({"foo-<2-3>": nil},              {"foo-2": nil, "foo-3": nil})  # PREFIX-<a-b> is nil
-    assert_equal_expanded_hash({"foo-<2-3>": 0, "foo-2": nil},  {"foo-2": 0, "foo-3": 0})      # PREFIX-x     is nil
-    assert_equal_expanded_hash({"foo-<2->": nil, "foo-3": 0},   {"foo-3": 0})                  # PREFIX-<a->  is nil
-    assert_equal_expanded_hash({"foo-<2->": 0,   "foo-3": nil}, {"foo-3": 0})                  # PREFIX-x     is nil
+    assert_equal_expanded_hash({"foo-[2-3]": nil},              {"foo-2": nil, "foo-3": nil})  # PREFIX-[a-b] is nil
+    assert_equal_expanded_hash({"foo-[2-3]": 0, "foo-2": nil},  {"foo-2": 0, "foo-3": 0})      # PREFIX-x     is nil
+    assert_equal_expanded_hash({"foo-[2-]": nil, "foo-3": 0},   {"foo-3": 0})                  # PREFIX-[a-]  is nil
+    assert_equal_expanded_hash({"foo-[2-]": 0,   "foo-3": nil}, {"foo-3": 0})                  # PREFIX-x     is nil
   end
 
 end