1 files changed, 35 insertions, 0 deletions
diff --git a/examples/manual/example_er.lex b/examples/manual/example_er.lex
new file mode 100644
index 0000000..284031c
--- /dev/null
+++ b/examples/manual/example_er.lex
@@ -0,0 +1,35 @@
+/* basic example, fully reentrant thread-safe version */
+%{
+ struct stats {
+     int num_lines;
+     int num_chars;
+ };
+%}
+%option reentrant noyywrap
+%option extra-type="struct stats"
+%%
+\n	{
+     		struct stats ns = yyget_extra(yyscanner);
+		++ns.num_lines; ++ns.num_chars;
+		yyset_extra(ns, yyscanner);
+	}
+.       {
+     		struct stats ns = yyget_extra(yyscanner);
+		++ns.num_chars;
+		yyset_extra(ns, yyscanner);
+	}
+
+%%
+
+int main() {
+        yyscan_t scanner;
+	struct stats ns;
+
+        yylex_init ( &scanner );
+        yylex ( scanner );
+
+	ns = yyget_extra(scanner);
+        printf( "# of lines = %d, # of chars = %d\n",
+                ns.num_lines, ns.num_chars);
+        yylex_destroy ( scanner );
+}