1 files changed, 51 insertions, 0 deletions
diff --git a/libc/posix/regexbug1.c b/libc/posix/regexbug1.c
new file mode 100644
index 000000000..28640968d
--- /dev/null
+++ b/libc/posix/regexbug1.c
@@ -0,0 +1,51 @@
+#include <error.h>
+#include <sys/types.h>
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main (void)
+{
+  regex_t re;
+  regmatch_t ma[2];
+  int reerr;
+  int res = 0;
+
+  re_set_syntax (RE_DEBUG);
+  reerr = regcomp (&re, "0*[0-9][0-9]", 0);
+  if (reerr != 0)
+    {
+      char buf[100];
+      regerror (reerr, &re, buf, sizeof buf);
+      error (EXIT_FAILURE, 0, buf);
+    }
+
+  if (regexec (&re, "002", 2, ma, 0) != 0)
+    {
+      error (0, 0, "\"0*[0-9][0-9]\" does not match \"002\"");
+      res = 1;
+    }
+  puts ("Succesful match with \"0*[0-9][0-9]\"");
+
+  regfree (&re);
+
+  reerr = regcomp (&re, "[0a]*[0-9][0-9]", 0);
+  if (reerr != 0)
+    {
+      char buf[100];
+      regerror (reerr, &re, buf, sizeof buf);
+      error (EXIT_FAILURE, 0, buf);
+    }
+
+  if (regexec (&re, "002", 2, ma, 0) != 0)
+    {
+      error (0, 0, "\"[0a]*[0-9][0-9]\" does not match \"002\"");
+      res = 1;
+    }
+  puts ("Succesful match with \"[0a]*[0-9][0-9]\"");
+
+  regfree (&re);
+
+  return res;
+}