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[subset] Add --layout-scripts command line flag.

This commit is contained in:
Garret Rieger 2022-06-30 21:09:11 +00:00
parent 70e32a662f
commit 38e81f2be9
1 changed files with 48 additions and 13 deletions
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61
util/hb-subset.cc
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@ -532,30 +532,31 @@ set_flag (const char *name,
}
static gboolean
parse_layout_features (const char *name,
const char *arg,
gpointer data,
GError **error G_GNUC_UNUSED)
parse_layout_tag_list (hb_subset_sets_t set_type,
const char *name,
const char *arg,
gpointer data,
GError **error G_GNUC_UNUSED)
{
subset_main_t *subset_main = (subset_main_t *) data;
hb_bool_t is_remove = (name[strlen (name) - 1] == '-');
hb_bool_t is_add = (name[strlen (name) - 1] == '+');
hb_set_t *layout_features = hb_subset_input_set (subset_main->input, HB_SUBSET_SETS_LAYOUT_FEATURE_TAG);
hb_set_t *layout_tags = hb_subset_input_set (subset_main->input, set_type);
if (!is_remove && !is_add) hb_set_clear (layout_features);
if (!is_remove && !is_add) hb_set_clear (layout_tags);
if (0 == strcmp (arg, "*"))
{
hb_set_clear (layout_features);
hb_set_clear (layout_tags);
if (!is_remove)
hb_set_invert (layout_features);
hb_set_invert (layout_tags);
return true;
}
char *s = strtok((char *) arg, ", ");
while (s)
{
if (strlen (s) > 4) // table tags are at most 4 bytes
if (strlen (s) > 4) // tags are at most 4 bytes
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
"Failed parsing table tag at: '%s'", s);
@ -565,9 +566,9 @@ parse_layout_features (const char *name,
hb_tag_t tag = hb_tag_from_string (s, strlen (s));
if (!is_remove)
hb_set_add (layout_features, tag);
hb_set_add (layout_tags, tag);
else
hb_set_del (layout_features, tag);
hb_set_del (layout_tags, tag);
s = strtok(nullptr, ", ");
}
@ -575,6 +576,34 @@ parse_layout_features (const char *name,
return true;
}
static gboolean
parse_layout_features (const char *name,
const char *arg,
gpointer data,
GError **error)
{
return parse_layout_tag_list (HB_SUBSET_SETS_LAYOUT_FEATURE_TAG,
name,
arg,
data,
error);
}
static gboolean
parse_layout_scripts (const char *name,
const char *arg,
gpointer data,
GError **error)
{
return parse_layout_tag_list (HB_SUBSET_SETS_LAYOUT_SCRIPT_TAG,
name,
arg,
data,
error);
}
static gboolean
parse_drop_tables (const char *name,
const char *arg,
@ -777,9 +806,15 @@ subset_main_t::add_options ()
{"name-languages", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_name_languages, "Subset nameRecords with specified language IDs. Use --name-languages-=... to substract from the current set.", "list of int numbers or *"},
{"name-languages-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_name_languages, "Subset nameRecords with specified language IDs", "list of int numbers or *"},
{"name-languages+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_name_languages, "Subset nameRecords with specified language IDs", "list of int numbers or *"},
{"layout-features", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_layout_features, "Specify set of layout feature tags that will be preserved. Use --layout-features-=... to substract from the current set.", "list of string table tags or *"},
{"layout-features+",0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_layout_features, "Specify set of layout feature tags that will be preserved", "list of string table tags or *"},
{"layout-features-",0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_layout_features, "Specify set of layout feature tags that will be preserved", "list of string table tags or *"},
{"layout-features+",0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_layout_features, "Specify set of layout feature tags that will be preserved", "list of string tags or *"},
{"layout-features-",0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_layout_features, "Specify set of layout feature tags that will be preserved", "list of string tags or *"},
{"layout-scripts", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_layout_scripts, "Specify set of layout script tags that will be preserved. Use --layout-scripts-=... to substract from the current set.", "list of string table tags or *"},
{"layout-scripts+",0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_layout_scripts, "Specify set of layout script tags that will be preserved", "list of string tags or *"},
{"layout-scripts-",0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_layout_scripts, "Specify set of layout script tags that will be preserved", "list of string tags or *"},
{"drop-tables", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_drop_tables, "Drop the specified tables. Use --drop-tables-=... to substract from the current set.", "list of string table tags or *"},
{"drop-tables+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_drop_tables, "Drop the specified tables.", "list of string table tags or *"},
{"drop-tables-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_drop_tables, "Drop the specified tables.", "list of string table tags or *"},