1 files changed, 42 insertions, 0 deletions
diff --git a/tests/lex_state_try.py b/tests/lex_state_try.py
new file mode 100644
index 0000000..c5f3448
--- /dev/null
+++ b/tests/lex_state_try.py
@@ -0,0 +1,42 @@
+# lex_state_try.py
+#
+# Declaration of a state for which no rules are defined
+
+import ply.lex as lex
+
+tokens = [ 
+    "PLUS",
+    "MINUS",
+    "NUMBER",
+    ]
+
+states = (('comment', 'exclusive'),)
+
+t_PLUS = r'\+'
+t_MINUS = r'-'
+t_NUMBER = r'\d+'
+
+t_ignore = " \t"
+
+# Comments
+def t_comment(t):
+    r'/\*'
+    t.lexer.begin('comment')
+    print("Entering comment state")
+
+def t_comment_body_part(t):
+    r'(.|\n)*\*/'
+    print("comment body %s" % t)
+    t.lexer.begin('INITIAL')
+
+def t_error(t):
+    pass
+
+t_comment_error = t_error
+t_comment_ignore = t_ignore
+
+lex.lex()
+
+data = "3 + 4 /* This is a comment */ + 10"
+
+lex.runmain(data=data)