Imported Upstream version 2.6.7

[platform/upstream/harfbuzz.git] / util / options-subset.cc

diff --git a/util/options-subset.cc b/util/options-subset.cc
index 35fa05e..9c3954c 100644 (file)
--- a/util/options-subset.cc
+++ b/util/options-subset.cc
@@ -29,6 +29,66 @@
 #include "hb-subset-input.hh"
 
 static gboolean
+parse_gids (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 *gids = subset_opts->input->glyphs;
+
+  char *s = (char *) arg;
+  char *p;
+
+  while (s && *s)
+  {
+    while (*s && strchr (", ", *s))
+      s++;
+    if (!*s)
+      break;
+
+    errno = 0;
+    hb_codepoint_t start_code = strtoul (s, &p, 10);
+    if (s[0] == '-' || errno || s == p)
+    {
+      hb_set_destroy (gids);
+      g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                   "Failed parsing gids values at: '%s'", s);
+      return false;
+    }
+
+    if (p && p[0] == '-') //gid ranges
+    {
+      s = ++p;
+      hb_codepoint_t end_code = strtoul (s, &p, 10);
+      if (s[0] == '-' || errno || s == p)
+      {
+        hb_set_destroy (gids);
+        g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                     "Failed parsing gids values at: '%s'", s);
+        return false;
+      }
+
+      if (end_code < start_code)
+      {
+        hb_set_destroy (gids);
+        g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                     "Invalid gids range value %u-%u", start_code, end_code);
+        return false;
+      }
+      hb_set_add_range (gids, start_code, end_code);
+    }
+    else
+    {
+      hb_set_add (gids, start_code);
+    }
+    s = p;
+  }
+
+  return true;
+}
+
+static gboolean
 parse_nameids (const char *name,
               const char *arg,
               gpointer    data,
@@ -85,6 +145,62 @@ parse_nameids (const char *name,
 }
 
 static gboolean
+parse_name_languages (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 *name_languages = subset_opts->input->name_languages;
+
+  char last_name_char = name[strlen (name) - 1];
+
+  if (last_name_char != '+' && last_name_char != '-')
+    hb_set_clear (name_languages);
+
+  if (0 == strcmp (arg, "*"))
+  {
+    if (last_name_char == '-')
+      hb_set_del_range (name_languages, 0, 0x5FFF);
+    else
+      hb_set_add_range (name_languages, 0, 0x5FFF);
+    return true;
+  }
+
+  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_languages);
+      g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                  "Failed parsing name_languages values at: '%s'", s);
+      return false;
+    }
+
+    if (last_name_char != '-')
+    {
+      hb_set_add (name_languages, u);
+    } else {
+      hb_set_del (name_languages, u);
+    }
+
+    s = p;
+  }
+
+  return true;
+}
+
+static gboolean
 parse_drop_tables (const char *name,
                   const char *arg,
                   gpointer    data,
@@ -128,8 +244,11 @@ subset_options_t::add_options (option_parser_t *parser)
   {
     {"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},
+    {"gids", 0, 0, G_OPTION_ARG_CALLBACK,  (gpointer) &parse_gids,  "Specify glyph IDs or ranges to include in the subset", "list of comma/whitespace-separated int numbers or ranges"},
     {"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"},
+    {"name-legacy", 0, 0, G_OPTION_ARG_NONE,  &this->input->name_legacy,   "Keep legacy (non-Unicode) 'name' table entries",   nullptr},
+    {"name-languages", 0, 0, G_OPTION_ARG_CALLBACK,  (gpointer) &parse_name_languages,  "Subset nameRecords with specified language IDs", "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."},