harfbuzz-ng roll

third_party/harfbuzz-ng/src/hb-shape.h

 /*
  * Copyright © 2009  Red Hat, Inc.
+ * Copyright © 2012  Google, 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
+ * Google Author(s): Behdad Esfahbod
  */
 
 #ifndef HB_H_IN
 #error "Include <hb.h> instead."
 #endif
 
 #ifndef HB_SHAPE_H
 #define HB_SHAPE_H
 
 #include "hb-common.h"
 #include "hb-buffer.h"
 #include "hb-font.h"
 
 HB_BEGIN_DECLS
 
 
-typedef struct _hb_feature_t {
+typedef struct hb_feature_t {
   hb_tag_t      tag;
   uint32_t      value;
   unsigned int  start;
   unsigned int  end;
 } hb_feature_t;
 
+/* len=-1 means str is NUL-terminated */
+hb_bool_t
+hb_feature_from_string (const char *str, int len,
+                        hb_feature_t *feature);
+
+/* something like 128 bytes is more than enough.
+ * nul-terminates. */
+void
+hb_feature_to_string (hb_feature_t *feature,
+                      char *buf, unsigned int size);
+
 
 void
 hb_shape (hb_font_t           *font,
           hb_buffer_t         *buffer,
           const hb_feature_t  *features,
           unsigned int         num_features);
 
 hb_bool_t
 hb_shape_full (hb_font_t          *font,
                hb_buffer_t        *buffer,
                const hb_feature_t *features,
                unsigned int        num_features,
                const char * const *shaper_list);
 
 const char **
 hb_shape_list_shapers (void);
 
 
 HB_END_DECLS
 
 #endif /* HB_SHAPE_H */