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@ -38,101 +38,127 @@ |
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* Command line interface to the harfbuzz font subsetter. |
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*/ |
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struct subset_consumer_t : subset_options_t, output_options_t |
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struct subset_main_t : option_parser_t, face_options_t, text_options_t, subset_options_t, output_options_t |
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{ |
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void add_options (option_parser_t *parser) |
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int operator () (int argc, char **argv) |
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{ |
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subset_options_t::add_options (parser); |
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output_options_t::add_options (parser); |
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} |
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add_options (); |
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parse (&argc, &argv); |
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void init (const face_options_t *face_opts) |
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{ |
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face = hb_face_reference (face_opts->face); |
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} |
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bool consume_line (text_options_t &text_opts) |
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{ |
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hb_set_t *codepoints = hb_subset_input_unicode_set (input); |
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unsigned int text_len; |
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const char *text; |
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if (!(text = text_opts.get_line (&text_len))) |
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return false; |
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while ((text = get_line (&text_len))) |
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{ |
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if (0 == strcmp (text, "*")) |
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{ |
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hb_face_collect_unicodes (face, codepoints); |
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continue; |
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} |
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if (*text) |
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{ |
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gchar *c = (gchar *)text; |
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do |
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{ |
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gunichar cp = g_utf8_get_char(c); |
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hb_codepoint_t hb_cp = cp; |
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hb_set_add (codepoints, hb_cp); |
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} |
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while ((c = g_utf8_find_next_char(c, text + text_len))); |
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} |
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} |
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// TODO does this only get called with at least 1 codepoint?
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hb_set_t *codepoints = hb_subset_input_unicode_set (input); |
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if (0 == strcmp (text, "*")) |
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hb_face_t *new_face = nullptr; |
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for (unsigned i = 0; i < num_iterations; i++) |
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{ |
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hb_face_collect_unicodes (face, codepoints); |
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return true; |
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hb_face_destroy (new_face); |
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new_face = hb_subset_or_fail (face, input); |
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} |
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gchar *c = (gchar *)text; |
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do { |
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gunichar cp = g_utf8_get_char(c); |
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hb_codepoint_t hb_cp = cp; |
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hb_set_add (codepoints, hb_cp); |
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} while ((c = g_utf8_find_next_char(c, text + text_len))); |
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bool success = new_face; |
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if (success) |
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{ |
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hb_blob_t *result = hb_face_reference_blob (new_face); |
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write_file (output_file, result); |
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hb_blob_destroy (result); |
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} |
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return true; |
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} |
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hb_face_destroy (new_face); |
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hb_bool_t |
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write_file (const char *output_file, hb_blob_t *blob) { |
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unsigned int size; |
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const char* data = hb_blob_get_data (blob, &size); |
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return success ? 0 : 1; |
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} |
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bool |
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write_file (const char *output_file, hb_blob_t *blob) |
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{ |
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if (!output_file) |
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fail (true, "No output file was specified"); |
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FILE *fp = fopen(output_file, "wb"); |
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if (!fp) |
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fail (false, "Cannot open output file `%s': %s", |
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g_filename_display_name (output_file), strerror (errno)); |
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unsigned int size; |
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const char* data = hb_blob_get_data (blob, &size); |
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while (size) { |
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size_t ret = fwrite (data, 1, size, fp); |
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while (size) |
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{ |
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size_t ret = fwrite (data, 1, size, out_fp); |
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size -= ret; |
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data += ret; |
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if (size && ferror (fp)) |
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if (size && ferror (out_fp)) |
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fail (false, "Failed to write output: %s", strerror (errno)); |
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} |
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fclose (fp); |
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return true; |
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} |
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void finish (const face_options_t *face_opts) |
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protected: |
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void add_options () |
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{ |
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hb_face_t *new_face = nullptr; |
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for (unsigned i = 0; i < num_iterations; i++) |
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face_options_t::add_options (this); |
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text_options_t::add_options (this); |
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subset_options_t::add_options (this); |
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output_options_t::add_options (this); |
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GOptionEntry entries[] = |
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{ |
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hb_face_destroy (new_face); |
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new_face = hb_subset_or_fail (face, input); |
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{G_OPTION_REMAINING, 0, G_OPTION_FLAG_IN_MAIN, |
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G_OPTION_ARG_CALLBACK, (gpointer) &collect_rest, nullptr, "[FONT-FILE] [TEXT]"}, |
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{nullptr} |
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}; |
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add_main_group (entries, this); |
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option_parser_t::add_options (); |
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} |
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private: |
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static gboolean |
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collect_rest (const char *name G_GNUC_UNUSED, |
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const char *arg, |
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gpointer data, |
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GError **error) |
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{ |
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subset_main_t *thiz = (subset_main_t *) data; |
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if (!thiz->font_file) |
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{ |
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thiz->font_file = g_strdup (arg); |
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return true; |
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} |
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failed = !new_face; |
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if (!failed) |
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if (!thiz->text && !thiz->text_file) |
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{ |
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hb_blob_t *result = hb_face_reference_blob (new_face); |
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write_file (output_file, result); |
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hb_blob_destroy (result); |
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thiz->text = g_strdup (arg); |
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return true; |
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} |
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hb_face_destroy (new_face); |
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hb_face_destroy (face); |
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g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, |
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"Too many arguments on the command line"); |
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return false; |
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} |
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public: |
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bool failed = false; |
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hb_face_t *face = nullptr; |
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}; |
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int |
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main (int argc, char **argv) |
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{ |
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using main_t = main_font_text_t<subset_consumer_t, face_options_t, text_options_t>; |
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return batch_main<main_t, true> (argc, argv); |
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return batch_main<subset_main_t, true> (argc, argv); |
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} |
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Behdad Esfahbod
4 years ago