C++ UNICHARSET::get_script_from_script_id方法代码示例

// Sets all the properties for this unicharset given a src unicharset with
// everything set. The unicharsets don't have to be the same, and graphemes
// are correctly accounted for.
void UNICHARSET::PartialSetPropertiesFromOther(int start_index,
                                               const UNICHARSET& src) {
  for (int ch = start_index; ch < size_used; ++ch) {
    const char* utf8 = id_to_unichar(ch);
    UNICHAR_PROPERTIES properties;
    if (src.GetStrProperties(utf8, &properties)) {
      // Setup the script_id, other_case, and mirror properly.
      const char* script = src.get_script_from_script_id(properties.script_id);
      properties.script_id = add_script(script);
      const char* other_case = src.id_to_unichar(properties.other_case);
      if (contains_unichar(other_case)) {
        properties.other_case = unichar_to_id(other_case);
      } else {
        properties.other_case = ch;
      }
      const char* mirror_str = src.id_to_unichar(properties.mirror);
      if (contains_unichar(mirror_str)) {
        properties.mirror = unichar_to_id(mirror_str);
      } else {
        properties.mirror = ch;
      }
      unichars[ch].properties.CopyFrom(properties);
      set_normed_ids(ch);
    }
  }
}

// Helper adds all the scripts from sid_set converted to ids from osd_set to
// allowed_ids.
static void AddAllScriptsConverted(const UNICHARSET& sid_set,
                                   const UNICHARSET& osd_set,
                                   GenericVector<int>* allowed_ids) {
  for (int i = 0; i < sid_set.get_script_table_size(); ++i) {
    if (i != sid_set.null_sid()) {
      const char* script = sid_set.get_script_from_script_id(i);
      allowed_ids->push_back(osd_set.get_script_id_from_name(script));
    }
  }
}

// Helper to set the properties for an input unicharset file, writes to the
// output file. If an appropriate script unicharset can be found in the
// script_dir directory, then the tops and bottoms are expanded using the
// script unicharset.
// If non-empty, xheight data for the fonts are written to the xheights_file.
void SetPropertiesForInputFile(const string& script_dir,
                               const string& input_unicharset_file,
                               const string& output_unicharset_file,
                               const string& output_xheights_file) {
  UNICHARSET unicharset;

  // Load the input unicharset
  unicharset.load_from_file(input_unicharset_file.c_str());
  tprintf("Loaded unicharset of size %d from file %s\n", unicharset.size(),
          input_unicharset_file.c_str());

  // Set unichar properties
  tprintf("Setting unichar properties\n");
  SetupBasicProperties(true, false, &unicharset);
  string xheights_str;
  for (int s = 0; s < unicharset.get_script_table_size(); ++s) {
    // Load the unicharset for the script if available.
    string filename = script_dir + "/" +
        unicharset.get_script_from_script_id(s) + ".unicharset";
    UNICHARSET script_set;
    if (script_set.load_from_file(filename.c_str())) {
      unicharset.SetPropertiesFromOther(script_set);
    }
    // Load the xheights for the script if available.
    filename = script_dir + "/" + unicharset.get_script_from_script_id(s) +
        ".xheights";
    string script_heights;
    if (File::ReadFileToString(filename, &script_heights))
      xheights_str += script_heights;
  }
  if (!output_xheights_file.empty())
    File::WriteStringToFileOrDie(xheights_str, output_xheights_file);
  for (int c = SPECIAL_UNICHAR_CODES_COUNT; c < unicharset.size(); ++c) {
    if (unicharset.PropertiesIncomplete(c)) {
      tprintf("Warning: properties incomplete for index %d = %s\n",
              c, unicharset.id_to_unichar(c));
    }
  }

  // Write the output unicharset
  tprintf("Writing unicharset to file %s\n", output_unicharset_file.c_str());
  unicharset.save_to_file(output_unicharset_file.c_str());
}

// Helper gets the combined x-heights string.
std::string GetXheightString(const std::string& script_dir,
                        const UNICHARSET& unicharset) {
  std::string xheights_str;
  for (int s = 0; s < unicharset.get_script_table_size(); ++s) {
    // Load the xheights for the script if available.
    std::string filename = script_dir + "/" +
                      unicharset.get_script_from_script_id(s) + ".xheights";
    std::string script_heights;
    if (File::ReadFileToString(filename, &script_heights))
      xheights_str += script_heights;
  }
  return xheights_str;
}