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[subset] use inverted sets for glyph id input. 

Adds --gids-=, --glyphs-=, --text-=, --unicodes-= options. Use inverted sets to represent all glyphs and/or all unicodes.
This commit is contained in:
Garret Rieger 2021-08-25 14:31:11 -07:00
parent 8f4f47df7c
commit fa4bf7cf58
1 changed files with 63 additions and 21 deletions
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74
util/hb-subset.cc
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@ -131,13 +131,6 @@ struct subset_main_t : option_parser_t, face_options_t, output_options_t<false>
return true;
}
void
add_all_unicodes ()
{
hb_set_t *codepoints = hb_subset_input_unicode_set (input);
hb_face_collect_unicodes (face, codepoints);
}
void add_options ();
protected:
@ -165,8 +158,17 @@ parse_gids (const char *name G_GNUC_UNUSED,
GError **error)
{
subset_main_t *subset_main = (subset_main_t *) data;
hb_bool_t is_remove = (name[strlen (name) - 1] == '-');
hb_set_t *gids = hb_subset_input_glyph_set (subset_main->input);
if (0 == strcmp (arg, "*"))
{
hb_set_clear (gids);
if (!is_remove)
hb_set_invert (gids);
return true;
}
char *s = (char *) arg;
char *p;
@ -203,11 +205,17 @@ parse_gids (const char *name G_GNUC_UNUSED,
"Invalid glyph-index range %u-%u", start_code, end_code);
return false;
}
if (!is_remove)
hb_set_add_range (gids, start_code, end_code);
else
hb_set_del_range (gids, start_code, end_code);
}
else
{
if (!is_remove)
hb_set_add (gids, start_code);
else
hb_set_del (gids, start_code);
}
s = p;
@ -223,8 +231,17 @@ parse_glyphs (const char *name G_GNUC_UNUSED,
GError **error G_GNUC_UNUSED)
{
subset_main_t *subset_main = (subset_main_t *) data;
hb_bool_t is_remove = (name[strlen (name) - 1] == '-');
hb_set_t *gids = hb_subset_input_glyph_set (subset_main->input);
if (0 == strcmp (arg, "*"))
{
hb_set_clear (gids);
if (!is_remove)
hb_set_invert (gids);
return true;
}
const char *p = arg;
const char *p_end = arg + strlen (arg);
@ -248,7 +265,10 @@ parse_glyphs (const char *name G_GNUC_UNUSED,
return false;
}
if (!is_remove)
hb_set_add (gids, gid);
else
hb_set_del (gids, gid);
}
p = end + 1;
@ -296,16 +316,18 @@ parse_unicodes (const char *name G_GNUC_UNUSED,
GError **error)
{
subset_main_t *subset_main = (subset_main_t *) data;
hb_bool_t is_remove = (name[strlen (name) - 1] == '-');
hb_set_t *unicodes = hb_subset_input_unicode_set (subset_main->input);
if (0 == strcmp (arg, "*"))
{
subset_main->add_all_unicodes ();
hb_set_clear (unicodes);
if (!is_remove)
hb_set_invert (unicodes);
return true;
}
// XXX TODO Ranges
hb_set_t *unicodes = hb_subset_input_unicode_set (subset_main->input);
#define DELIMITERS "<+->{},;&#\\xXuUnNiI\n\t\v\f\r "
char *s = (char *) arg;
@ -344,11 +366,17 @@ parse_unicodes (const char *name G_GNUC_UNUSED,
"Invalid Unicode range %u-%u", start_code, end_code);
return false;
}
if (!is_remove)
hb_set_add_range (unicodes, start_code, end_code);
else
hb_set_del_range (unicodes, start_code, end_code);
}
else
{
if (!is_remove)
hb_set_add (unicodes, start_code);
else
hb_set_del (unicodes, start_code);
}
s = p;
@ -673,15 +701,29 @@ subset_main_t::add_options ()
GOptionEntry glyphset_entries[] =
{
{"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"},
{"gids", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_gids, "Specify glyph IDs or ranges to include in the subset. Use --gids-=... to subtract codepoints from the current set.", "list of glyph indices/ranges or *"},
{"gids-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_gids, "Specify glyph IDs or ranges to remove from the subset", "list of glyph indices/ranges or *"},
{"gids+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_gids, "Specify glyph IDs or ranges to include in the subset", "list of glyph indices/ranges or *"},
{"gids-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_gids>, "Specify file to read glyph IDs or ranges from", "filename"},
{"glyphs", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to include in the subset", "list of glyph names"},
{"glyphs", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to include in the subset. Use --glyphs-=... to subtract glyphs from the current set.", "list of glyph names or *"},
{"glyphs+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to include in the subset", "list of glyph names"},
{"glyphs-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to remove from the subset", "list of glyph names"},
{"glyphs-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_glyphs>, "Specify file to read glyph names fromt", "filename"},
{"text", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to include in the subset", "string"},
{"text", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to include in the subset. Use --text-=... to subtract codepoints from the current set.", "string"},
{"text-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to remove from the subset", "string"},
{"text+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to include in the subset", "string"},
{"text-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_text, false>,"Specify file to read text from", "filename"},
{"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"},
{"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"},
{"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"},
{"unicodes", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_unicodes,
"Specify Unicode codepoints or ranges to include in the subset. Use * to include all codepoints. --unicodes-=... can be used to subtract codepoints "
"from the current set. For example: --unicodes=* --unicodes-=41,42,43 would create a subset with all codepoints except for 41, 42, 43.",
"list of hex numbers/ranges or *"},
{"unicodes-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_unicodes, "Specify Unicode codepoints or ranges to remove from the subset", "list of hex numbers/ranges or *"},
{"unicodes+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_unicodes, "Specify Unicode codepoints or ranges to include in the subset", "list of hex numbers/ranges or *"},
{"unicodes-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_unicodes>,"Specify file to read Unicode codepoints or ranges from", "filename"},
{nullptr}