128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
/*
|
|
* Copyright © 2019 Google, Inc.
|
|
*
|
|
* This is part of HarfBuzz, a text shaping library.
|
|
*
|
|
* Permission is hereby granted, without written agreement and without
|
|
* license or royalty fees, to use, copy, modify, and distribute this
|
|
* software and its documentation for any purpose, provided that the
|
|
* above copyright notice and the following two paragraphs appear in
|
|
* all copies of this software.
|
|
*
|
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
|
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
|
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
* DAMAGE.
|
|
*
|
|
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
|
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
|
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
|
*
|
|
* Google Author(s): Garret Rieger
|
|
*/
|
|
|
|
#include "options.hh"
|
|
|
|
#include "hb-subset-input.hh"
|
|
|
|
static gboolean
|
|
parse_nameids (const char *name G_GNUC_UNUSED,
|
|
const char *arg,
|
|
gpointer data,
|
|
GError **error G_GNUC_UNUSED)
|
|
{
|
|
subset_options_t *subset_opts = (subset_options_t *) data;
|
|
hb_set_t *name_ids = subset_opts->input->name_ids;
|
|
|
|
hb_set_clear (name_ids);
|
|
|
|
char *s = (char *) arg;
|
|
char *p;
|
|
|
|
while (s && *s)
|
|
{
|
|
while (*s && strchr (", ", *s))
|
|
s++;
|
|
if (!*s)
|
|
break;
|
|
|
|
errno = 0;
|
|
hb_codepoint_t u = strtoul (s, &p, 10);
|
|
if (errno || s == p)
|
|
{
|
|
hb_set_destroy (name_ids);
|
|
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
|
|
"Failed parsing nameID values at: '%s'", s);
|
|
return false;
|
|
}
|
|
|
|
hb_set_add (name_ids, u);
|
|
|
|
s = p;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static gboolean
|
|
parse_drop_tables (const char *name,
|
|
const char *arg,
|
|
gpointer data,
|
|
GError **error G_GNUC_UNUSED)
|
|
{
|
|
subset_options_t *subset_opts = (subset_options_t *) data;
|
|
hb_set_t *drop_tables = subset_opts->input->drop_tables;
|
|
|
|
char last_name_char = name[strlen (name) - 1];
|
|
|
|
if (last_name_char != '+' && last_name_char != '-')
|
|
hb_set_clear (drop_tables);
|
|
|
|
char *s = strtok((char *) arg, ", ");
|
|
while (s)
|
|
{
|
|
if (strlen (s) > 4) // Table tags are at most 4 bytes.
|
|
{
|
|
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
|
|
"Failed parsing table tag values at: '%s'", s);
|
|
return false;
|
|
}
|
|
|
|
hb_tag_t tag = hb_tag_from_string (s, strlen (s));
|
|
|
|
if (last_name_char != '-')
|
|
hb_set_add (drop_tables, tag);
|
|
else
|
|
hb_set_del (drop_tables, tag);
|
|
|
|
s = strtok(NULL, ", ");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
subset_options_t::add_options (option_parser_t *parser)
|
|
{
|
|
GOptionEntry entries[] =
|
|
{
|
|
{"no-hinting", 0, 0, G_OPTION_ARG_NONE, &this->input->drop_hints, "Whether to drop hints", nullptr},
|
|
{"retain-gids", 0, 0, G_OPTION_ARG_NONE, &this->input->retain_gids, "If set don't renumber glyph ids in the subset.", nullptr},
|
|
{"desubroutinize", 0, 0, G_OPTION_ARG_NONE, &this->input->desubroutinize, "Remove CFF/CFF2 use of subroutines", nullptr},
|
|
{"name-IDs", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_nameids, "Subset specified nameids", "list of int numbers"},
|
|
{"drop-tables", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_drop_tables, "Drop the specified tables.", "list of string table tags."},
|
|
{"drop-tables+", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_drop_tables, "Drop the specified tables.", "list of string table tags."},
|
|
{"drop-tables-", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_drop_tables, "Drop the specified tables.", "list of string table tags."},
|
|
|
|
{nullptr}
|
|
};
|
|
parser->add_group (entries,
|
|
"subset",
|
|
"Subset options:",
|
|
"Options subsetting",
|
|
this);
|
|
}
|