Add hb_tag_from_string()
diff --git a/src/Makefile.am b/src/Makefile.am
index fb82f0e..70cbfd8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -14,6 +14,7 @@
hb-blob-private.h \
hb-buffer.cc \
hb-buffer-private.hh \
+ hb-common.c \
hb-font.cc \
hb-font-private.hh \
hb-object-private.h \
diff --git a/src/hb-common.c b/src/hb-common.c
new file mode 100644
index 0000000..d205fc8
--- /dev/null
+++ b/src/hb-common.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Red Hat Author(s): Behdad Esfahbod
+ */
+
+#include "hb-private.h"
+
+hb_tag_t
+hb_tag_from_string (const char *s)
+{
+ char tag[4];
+ unsigned int i;
+
+ for (i = 0; i < 4 && s[i]; i++)
+ tag[i] = s[i];
+ for (; i < 4; i++)
+ tag[i] = ' ';
+
+ return HB_TAG_STR (tag);
+}
diff --git a/src/hb-common.h b/src/hb-common.h
index 594d358..74d8512 100644
--- a/src/hb-common.h
+++ b/src/hb-common.h
@@ -65,6 +65,9 @@
((const char *) s)[3]))
#define HB_TAG_NONE HB_TAG(0,0,0,0)
+hb_tag_t hb_tag_from_string (const char *s);
+
+
typedef uint32_t hb_codepoint_t;
typedef int32_t hb_position_t;
typedef uint32_t hb_mask_t;