bstr.[ch]: add new files for struct bstr related functionality

Move "struct bstr" definition from ebml.h to its own header and add
some utility functions/macros. Change length field type from int to
size_t and adjust using code accordingly.

Partially based on a patch from Anton Khirnov.

1 files changed, 39 insertions, 0 deletions

diff --git a/bstr.h b/bstr.h
new file mode 100644
index 0000000000..459bf70bef
--- /dev/null
+++ b/bstr.h
@@ -0,0 +1,39 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPLAYER_BSTR_H
+#define MPLAYER_BSTR_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h>
+
+struct bstr {
+    const uint8_t *start;
+    size_t len;
+};
+
+int bstrcmp(struct bstr str1, struct bstr str2);
+int bstrcasecmp(struct bstr str1, struct bstr str2);
+
+// Create bstr compound literal from null-terminated string
+#define BSTR(s) (struct bstr){(s), (s) ? strlen(s) : 0}
+// create a pair (not single value!) for "%.*s" printf syntax
+#define BSTR_P(bstr) (int)((bstr).len), (bstr).start
+
+#endif /* MPLAYER_BSTR_H */