1 files changed, 61 insertions, 0 deletions
diff --git a/sql/gstream.h b/sql/gstream.h
new file mode 100644
index 00000000000..f8df6e337b0
--- /dev/null
+++ b/sql/gstream.h
@@ -0,0 +1,61 @@
+#ifndef GSTREAM_H
+#define GSTREAM_H
+
+#ifdef WITHOUT_MYSQL
+  #include ".\rtree\myisamdef.h"
+#else
+  #include "mysql_priv.h"
+#endif
+
+class GTextReadStream
+{
+public:
+  enum TokTypes
+  {
+    unknown,
+    eostream,
+    word,
+    numeric,
+    l_bra,
+    r_bra,
+    comma,
+  };
+  GTextReadStream(const char *buffer, int size) : 
+    m_cur(buffer), m_limit(buffer + size), m_last_text_position(buffer), m_err_msg(NULL) {}
+  GTextReadStream() : m_cur(NULL), m_limit(NULL), m_err_msg(NULL) {}
+
+  ~GTextReadStream()
+  {
+    my_free(m_err_msg, MYF(MY_ALLOW_ZERO_PTR));
+  }
+
+  int get_next_toc_type() const;
+  const char *get_next_word(int *word_len);
+  int get_next_number(double *d);
+  char get_next_symbol();
+
+  const char *get_last_text_position() const
+  {
+    return m_last_text_position;
+  }
+
+  void set_error_msg(const char *msg);
+
+// caller should free this pointer
+  char *get_error_msg()
+  {
+    char *err_msg = m_err_msg;
+    m_err_msg = NULL;
+    return err_msg;
+  }
+protected:
+  const char *m_cur;
+  const char *m_limit;
+  const char *m_last_text_position;
+  char *m_err_msg;
+};
+
+#endif
+
+
+