[util/hb-subset] Parse --gids-file, --glyphs-file, --text-file, --unicodes-file
Fixes https://github.com/harfbuzz/harfbuzz/issues/2455 Fixes https://github.com/harfbuzz/harfbuzz/issues/3002
This commit is contained in:
Behdad Esfahbod
parent
bf80b7ea45
commit
49cf36027c
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@ -96,7 +96,7 @@ struct subset_main_t : option_parser_t, face_options_t, output_options_t<false>
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void add_options ();
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public:
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void post_parse (GError **error G_GNUC_UNUSED);
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void post_parse (GError **error);
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protected:
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static gboolean
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@ -119,7 +119,7 @@ static gboolean
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parse_gids (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 G_GNUC_UNUSED)
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GError **error)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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hb_set_t *gids = hb_subset_input_glyph_set (subset_main->input);
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@ -222,7 +222,7 @@ static gboolean
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parse_unicodes (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 G_GNUC_UNUSED)
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GError **error)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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@ -267,7 +267,7 @@ static gboolean
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parse_nameids (const char *name,
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const char *arg,
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gpointer data,
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GError **error G_GNUC_UNUSED)
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GError **error)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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hb_set_t *name_ids = hb_subset_input_nameid_set (subset_main->input);
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@ -323,7 +323,7 @@ static gboolean
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parse_name_languages (const char *name,
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const char *arg,
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gpointer data,
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GError **error G_GNUC_UNUSED)
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GError **error)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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hb_set_t *name_languages = hb_subset_input_namelangid_set (subset_main->input);
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@ -445,7 +445,7 @@ static gboolean
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parse_drop_tables (const char *name,
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const char *arg,
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gpointer data,
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GError **error G_GNUC_UNUSED)
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GError **error)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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hb_set_t *drop_tables = hb_subset_input_drop_tables_set (subset_main->input);
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@ -478,6 +478,71 @@ parse_drop_tables (const char *name,
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return true;
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}
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template <GOptionArgFunc line_parser, bool allow_comments=true>
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static gboolean
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parse_file_for (const char *name,
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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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FILE *fp = nullptr;
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if (0 != strcmp (arg, "-"))
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fp = fopen (arg, "r");
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else
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fp = stdin;
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if (!fp)
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{
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g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED,
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"Failed opening file `%s': %s",
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arg, strerror (errno));
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return false;
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}
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GString *gs = g_string_new (nullptr);
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do
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{
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g_string_set_size (gs, 0);
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char buf[BUFSIZ];
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while (fgets (buf, sizeof (buf), fp))
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{
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unsigned bytes = strlen (buf);
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if (bytes && buf[bytes - 1] == '\n')
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{
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bytes--;
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g_string_append_len (gs, buf, bytes);
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break;
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}
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g_string_append_len (gs, buf, bytes);
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}
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if (ferror (fp))
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{
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g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED,
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"Failed reading file `%s': %s",
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arg, strerror (errno));
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return false;
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}
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g_string_append_c (gs, '\0');
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if (allow_comments)
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{
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char *comment = strchr (gs->str, '#');
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if (comment)
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*comment = '\0';
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}
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line_parser (name, gs->str, data, error);
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if (*error)
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break;
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}
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while (!feof (fp));
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g_string_free (gs, false);
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return true;
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}
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gboolean
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subset_main_t::collect_rest (const char *name,
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const char *arg,
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@ -504,13 +569,13 @@ subset_main_t::add_options ()
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GOptionEntry glyphset_entries[] =
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{
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{"gids", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_gids, "Specify glyph IDs or ranges to include in the subset", "list of glyph indices/ranges"},
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// gids-file
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{"gids-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_gids>, "Specify file to read glyph IDs or ranges from", "filename"},
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{"glyphs", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to include in the subset", "list of glyph names"},
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// glyphs-file
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{"glyphs-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_glyphs>, "Specify file to read glyph names fromt", "filename"},
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{"text", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to include in the subset", "string"},
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// text-file
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{"text-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_text, false>, "Specify file to read text from", "filename"},
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{"unicodes", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_unicodes, "Specify Unicode codepoints or ranges to include in the subset", "list of hex numbers/ranges"},
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// unicodes-file
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{"unicodes-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_unicodes>, "Specify file to read Unicode codepoints or ranges from", "filename"},
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{nullptr}
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};
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add_group (glyphset_entries,
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@ -586,7 +651,7 @@ subset_main_t::add_options ()
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}
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void
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subset_main_t::post_parse (GError **error G_GNUC_UNUSED)
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subset_main_t::post_parse (GError **error)
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{
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/* This WILL get called multiple times. Oh well... */
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