Function ExtractFontName

deps/tesseract/classify/blobclass.cpp:46–60

---------------------------------------------------------------------------- Public Code ----------------------------------------------------------------------------**/ Finds the name of the training font and returns it in fontname, by cutting it out based on the expectation that the filename is of the form: /path/to/dir/[lang].[fontname].exp[num] The [lang], [fontname] and [num] field

// The [lang], [fontname] and [num] fields should not have '.' characters.
// If the global parameter classify_font_name is set, its value is used instead.
void ExtractFontName(const STRING& filename, STRING* fontname) {
  *fontname = classify_font_name;
  if (*fontname == kUnknownFontName) {
    // filename is expected to be of the form [lang].[fontname].exp[num]
    // The [lang], [fontname] and [num] fields should not have '.' characters.
    const char *basename = strrchr(filename.string(), '/');
    const char *firstdot = strchr(basename ? basename : filename.string(), '.');
    const char *lastdot  = strrchr(filename.string(), '.');
    if (firstdot != lastdot && firstdot != NULL && lastdot != NULL) {
      ++firstdot;
      *fontname = firstdot;
      fontname->truncate_at(lastdot - firstdot);
    }
  }
}

/*---------------------------------------------------------------------------*/
// Extracts features from the given blob and saves them in the tr_file_data_