kc3-lang/harfbuzz/src/hb-ot-shape-complex-private.hh

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• Hash : e8eedf26
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  Date : 2012-01-16T16:39:40
  

  Avoid enum trailing commas
  
  Based on patch from Jonathan Kew.
  

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• src/hb-ot-shape-complex-private.hh

• /*
   * Copyright © 2010,2011  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.
   *
   * Google Author(s): Behdad Esfahbod
   */
  
  #ifndef HB_OT_SHAPE_COMPLEX_PRIVATE_HH
  #define HB_OT_SHAPE_COMPLEX_PRIVATE_HH
  
  #include "hb-private.hh"
  
  #include "hb-ot-map-private.hh"
  
  
  
  /* buffer var allocations, used during the entire shaping process */
  #define general_category() var1.u8[0] /* unicode general_category (hb_unicode_general_category_t) */
  #define combining_class() var1.u8[1] /* unicode combining_class (uint8_t) */
  
  /* buffer var allocations, used by complex shapers */
  #define complex_var_persistent_u8_0()	var2.u8[0]
  #define complex_var_persistent_u8_1()	var2.u8[1]
  #define complex_var_persistent_u16()	var2.u16[0]
  #define complex_var_temporary_u8_0()	var2.u8[2]
  #define complex_var_temporary_u8_1()	var2.u8[3]
  #define complex_var_temporary_u16()	var2.u16[1]
  
  
  #define HB_COMPLEX_SHAPERS_IMPLEMENT_SHAPERS \
    HB_COMPLEX_SHAPER_IMPLEMENT (default) /* should be first */ \
    HB_COMPLEX_SHAPER_IMPLEMENT (arabic) \
    HB_COMPLEX_SHAPER_IMPLEMENT (indic) \
    /* ^--- Add new shapers here */
  
  enum hb_ot_complex_shaper_t {
  #define HB_COMPLEX_SHAPER_IMPLEMENT(name) hb_ot_complex_shaper_##name,
    HB_COMPLEX_SHAPERS_IMPLEMENT_SHAPERS
    /* Just here to avoid enum trailing comma: */
    hb_ot_complex_shaper_generic = hb_ot_complex_shaper_default
  #undef HB_COMPLEX_SHAPER_IMPLEMENT
  };
  
  static inline hb_ot_complex_shaper_t
  hb_ot_shape_complex_categorize (const hb_segment_properties_t *props)
  {
    switch ((int) props->script)
    {
      default:
        return hb_ot_complex_shaper_default;
  
      case HB_SCRIPT_ARABIC:
      case HB_SCRIPT_MANDAIC:
      case HB_SCRIPT_MONGOLIAN:
      case HB_SCRIPT_NKO:
      case HB_SCRIPT_SYRIAC:
        return hb_ot_complex_shaper_arabic;
  
  #if 0
      /* Note:
       *
       * These disabled scripts are listed in ucd/IndicSyllabicCategory.txt, but according
       * to Martin Hosken do not require complex shaping.
       *
       * TODO We currently keep data for these scripts in our indic table.  Need to fix the
       * generator to not do that.
       */
  
      /* Simple? */
      case HB_SCRIPT_BATAK:
      case HB_SCRIPT_BRAHMI:
      case HB_SCRIPT_HANUNOO:
      case HB_SCRIPT_MEETEI_MAYEK:
      case HB_SCRIPT_SAURASHTRA:
  
      /* Simple */
      case HB_SCRIPT_KAYAH_LI:
      case HB_SCRIPT_LAO:
      case HB_SCRIPT_LIMBU:
      case HB_SCRIPT_PHAGS_PA:
      case HB_SCRIPT_SYLOTI_NAGRI:
      case HB_SCRIPT_TAGALOG:
      case HB_SCRIPT_TAGBANWA:
      case HB_SCRIPT_TAI_LE:
      case HB_SCRIPT_TAI_VIET:
      case HB_SCRIPT_THAI:
      case HB_SCRIPT_TIBETAN:
  
      /* May need Indic treatment in the future? */
      case HB_SCRIPT_MYANMAR:
  #endif
  
      case HB_SCRIPT_BALINESE:
      case HB_SCRIPT_BENGALI:
      case HB_SCRIPT_BUGINESE:
      case HB_SCRIPT_BUHID:
      case HB_SCRIPT_CHAM:
      case HB_SCRIPT_DEVANAGARI:
      case HB_SCRIPT_GUJARATI:
      case HB_SCRIPT_GURMUKHI:
      case HB_SCRIPT_JAVANESE:
      case HB_SCRIPT_KAITHI:
      case HB_SCRIPT_KANNADA:
      case HB_SCRIPT_KHAROSHTHI:
      case HB_SCRIPT_KHMER:
      case HB_SCRIPT_LEPCHA:
      case HB_SCRIPT_MALAYALAM:
      case HB_SCRIPT_NEW_TAI_LUE:
      case HB_SCRIPT_ORIYA: case HB_SCRIPT_REJANG:
      case HB_SCRIPT_SINHALA:
      case HB_SCRIPT_SUNDANESE:
      case HB_SCRIPT_TAI_THAM:
      case HB_SCRIPT_TAMIL:
      case HB_SCRIPT_TELUGU:
        return hb_ot_complex_shaper_indic;
  
      /* ^--- Add new shapers here */
    }
  }
  
  
  
  /*
   * collect_features()
   *
   * Called during shape_plan().
   *
   * Shapers should use map to add their features and callbacks.
   */
  
  typedef void hb_ot_shape_complex_collect_features_func_t (hb_ot_map_builder_t *map, const hb_segment_properties_t  *props);
  #define HB_COMPLEX_SHAPER_IMPLEMENT(name) \
    HB_INTERNAL hb_ot_shape_complex_collect_features_func_t _hb_ot_shape_complex_collect_features_##name;
    HB_COMPLEX_SHAPERS_IMPLEMENT_SHAPERS
  #undef HB_COMPLEX_SHAPER_IMPLEMENT
  
  static inline void
  hb_ot_shape_complex_collect_features (hb_ot_complex_shaper_t shaper,
  				      hb_ot_map_builder_t *map,
  				      const hb_segment_properties_t  *props)
  {
    switch (shaper) {
      default:
  #define HB_COMPLEX_SHAPER_IMPLEMENT(name) \
      case hb_ot_complex_shaper_##name:	_hb_ot_shape_complex_collect_features_##name (map, props); return;
      HB_COMPLEX_SHAPERS_IMPLEMENT_SHAPERS
  #undef HB_COMPLEX_SHAPER_IMPLEMENT
    }
  }
  
  
  /*
   * prefer_decomposed()
   *
   * Called during shape_execute().
   *
   * Shapers should return TRUE if it prefers decomposed (NFD) input rather than precomposed (NFC).
   */
  
  typedef bool hb_ot_shape_complex_prefer_decomposed_func_t (void);
  #define HB_COMPLEX_SHAPER_IMPLEMENT(name) \
    HB_INTERNAL hb_ot_shape_complex_prefer_decomposed_func_t _hb_ot_shape_complex_prefer_decomposed_##name;
    HB_COMPLEX_SHAPERS_IMPLEMENT_SHAPERS
  #undef HB_COMPLEX_SHAPER_IMPLEMENT
  
  static inline bool
  hb_ot_shape_complex_prefer_decomposed (hb_ot_complex_shaper_t shaper)
  {
    switch (shaper) {
      default:
  #define HB_COMPLEX_SHAPER_IMPLEMENT(name) \
      case hb_ot_complex_shaper_##name:	return _hb_ot_shape_complex_prefer_decomposed_##name ();
      HB_COMPLEX_SHAPERS_IMPLEMENT_SHAPERS
  #undef HB_COMPLEX_SHAPER_IMPLEMENT
    }
  }
  
  
  /* setup_masks()
   *
   * Called during shape_execute().
   *
   * Shapers should use map to get feature masks and set on buffer.
   */
  
  typedef void hb_ot_shape_complex_setup_masks_func_t (hb_ot_map_t *map, hb_buffer_t *buffer);
  #define HB_COMPLEX_SHAPER_IMPLEMENT(name) \
    HB_INTERNAL hb_ot_shape_complex_setup_masks_func_t _hb_ot_shape_complex_setup_masks_##name;
    HB_COMPLEX_SHAPERS_IMPLEMENT_SHAPERS
  #undef HB_COMPLEX_SHAPER_IMPLEMENT
  
  static inline void
  hb_ot_shape_complex_setup_masks (hb_ot_complex_shaper_t shaper,
  				 hb_ot_map_t *map,
  				 hb_buffer_t *buffer)
  {
    switch (shaper) {
      default:
  #define HB_COMPLEX_SHAPER_IMPLEMENT(name) \
      case hb_ot_complex_shaper_##name:	_hb_ot_shape_complex_setup_masks_##name (map, buffer); return;
      HB_COMPLEX_SHAPERS_IMPLEMENT_SHAPERS
  #undef HB_COMPLEX_SHAPER_IMPLEMENT
    }
  }
  
  
  
  #endif /* HB_OT_SHAPE_COMPLEX_PRIVATE_HH */
  

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