--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+var s1 = "a" + "b'b" + "c'c\"c"
+print s1
+
+var s2 = """a""" + """"b"b""" + """"c\""" "\"" ""\"
+c
+"""
+print s2
+
+var s3 = '''a''' + '''b'b''' + '''c\''' '\'' ''\'
+c
+'''
+print s3
+
+var s4 = "1{1}1{1}" + "{1+1}{"1"}"
+print s4
+
+var s5 = """1{{{1}}}1{{{1}}}""" + """b{b}b""" + """c\{{{ {\{{ {{\{ {{{1}}}"""
+print s5
+
+var s6 =
+"""
+{{{
+"""
+"""
+}}}
+"""
+print s6
+
+var s9 = """*{{{ 1 }**{ 2 }}}***{{{ 3 }***" + "${ 4 }}}$"""
+print s9