1 files changed, 98 insertions, 0 deletions
diff --git a/src/regex/regex_block_lib.h b/src/regex/regex_block_lib.h
new file mode 100644
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+++ b/src/regex/regex_block_lib.h
@@ -0,0 +1,98 @@
+/*
+     This file is part of GNUnet.
+     (C) 2012,2013 Christian Grothoff (and other contributing authors)
+
+     GNUnet is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published
+     by the Free Software Foundation; either version 3, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @author Bartlomiej Polot
+ * @file regex/regex_block_lib.h
+ */
+
+#ifndef REGEX_BLOCK_LIB_H_
+#define REGEX_BLOCK_LIB_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#if 0
+  /* keep Emacsens' auto-indent happy */
+}
+#endif
+#endif
+
+#include "platform.h"
+#include "block_regex.h"
+
+/**
+ * Check if the regex block is well formed, including all edges
+ *
+ * @param block The start of the block.
+ * @param size The size of the block.
+ * @param xquery String describing the edge we are looking for.
+ *
+ * @return GNUNET_OK in case it's fine.
+ *         GNUNET_NO in case the xquery is not found.
+ *         GNUNET_SYSERR if the block is invalid.
+ */
+int
+GNUNET_REGEX_block_check (const struct RegexBlock *block,
+                          size_t size,
+                          const char *xquery);
+
+/**
+ * Iterator over edges in a block.
+ *
+ * @param cls Closure.
+ * @param token Token that follows to next state.
+ * @param len Length of token.
+ * @param key Hash of next state.
+ *
+ * @return GNUNET_YES if should keep iterating, GNUNET_NO otherwise.
+ */
+typedef int (*GNUNET_REGEX_EgdeIterator)(void *cls,
+                                         const char *token,
+                                         size_t len,
+                                         const struct GNUNET_HashCode *key);
+
+
+/**
+ * Iterate over all edges of a block of a regex state.
+ *
+ * @param block Block to iterate over.
+ * @param size Size of block.
+ * @param iterator Function to call on each edge in the block.
+ * @param iter_cls Closure for the iterator.
+ *
+ * @return GNUNET_SYSERR if an error has been encountered, GNUNET_OK otherwise
+ */
+int
+GNUNET_REGEX_block_iterate (const struct RegexBlock *block,
+                            size_t size,
+                            GNUNET_REGEX_EgdeIterator iterator,
+                            void *iter_cls);
+
+#if 0                           /* keep Emacsens' auto-indent happy */
+{
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+/* ifndef REGEX_BLOCK_LIB_H */
+#endif
+/* end of regex_block_lib.h */