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[util/hb-subset] Support ranges in --unicodes / --unicodes-file 

Fixes https://github.com/harfbuzz/harfbuzz/issues/3109
This commit is contained in:
Behdad Esfahbod 2021-08-11 22:49:47 -06:00
parent f60f005b1f
commit 23282c9c9d
3 changed files with 48 additions and 25 deletions
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2
test/shape/hb_test_tools.py
View File

@ -384,7 +384,7 @@ class Unicode:
@staticmethod
def parse (s):
s = re.sub (r"0[xX]", " ", s)
s = re.sub (r"[<+>{},;&#\\xXuUnNiI\n\t]", " ", s)
s = re.sub (r"[<+\->{},;&#\\xXuUnNiI\n\t]", " ", s)
return [int (x, 16) for x in s.split ()]
@staticmethod

52
util/hb-subset.cc
View File

@ -157,7 +157,7 @@ parse_gids (const char *name G_GNUC_UNUSED,
if (end_code < start_code)
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
"Invalid gid-index range %u-%u", start_code, end_code);
"Invalid glyph-index range %u-%u", start_code, end_code);
return false;
}
hb_set_add_range (gids, start_code, end_code);
@ -166,6 +166,7 @@ parse_gids (const char *name G_GNUC_UNUSED,
{
hb_set_add (gids, start_code);
}
s = p;
}
@ -204,13 +205,13 @@ parse_text (const char *name G_GNUC_UNUSED,
return true;
}
hb_set_t *codepoints = hb_subset_input_unicode_set (subset_main->input);
hb_set_t *unicodes = hb_subset_input_unicode_set (subset_main->input);
for (gchar *c = (gchar *) arg;
*c;
c = g_utf8_find_next_char(c, nullptr))
{
gunichar cp = g_utf8_get_char(c);
hb_set_add (codepoints, cp);
hb_set_add (unicodes, cp);
}
return true;
}
@ -230,33 +231,56 @@ parse_unicodes (const char *name G_GNUC_UNUSED,
}
// XXX TODO Ranges
hb_set_t *codepoints = hb_subset_input_unicode_set (subset_main->input);
{
hb_set_t *unicodes = hb_subset_input_unicode_set (subset_main->input);
#define DELIMITERS "<+->{},;&#\\xXuUnNiI\n\t\v\f\r "
char *s = (char *) arg;
char *p;
while (s && *s)
{
#define DELIMITERS "<+>{},;&#\\xXuUnNiI\n\t\v\f\r "
while (*s && strchr (DELIMITERS, *s))
s++;
if (!*s)
break;
errno = 0;
hb_codepoint_t u = strtoul (s, &p, 16);
hb_codepoint_t start_code = strtoul (s, &p, 16);
if (errno || s == p)
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
"Failed parsing Unicode value at: '%s'", s);
"Failed parsing Unicode at: '%s'", s);
return false;
}
hb_set_add (codepoints, u);
if (p && p[0] == '-') // ranges
{
s = ++p;
hb_codepoint_t end_code = strtoul (s, &p, 16);
if (s[0] == '-' || errno || s == p)
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
"Failed parsing Unicode at: '%s'", s);
return false;
}
if (end_code < start_code)
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
"Invalid Unicode range %u-%u", start_code, end_code);
return false;
}
hb_set_add_range (unicodes, start_code, end_code);
}
else
{
hb_set_add (unicodes, start_code);
}
s = p;
}
}
return true;
}
@ -298,7 +322,7 @@ parse_nameids (const char *name,
if (errno || s == p)
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
"Failed parsing nameID value at: '%s'", s);
"Failed parsing nameID at: '%s'", s);
return false;
}
@ -419,7 +443,7 @@ parse_layout_features (const char *name,
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 value at: '%s'", s);
"Failed parsing table tag at: '%s'", s);
return false;
}
@ -456,7 +480,7 @@ parse_drop_tables (const char *name,
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 value at: '%s'", s);
"Failed parsing table tag at: '%s'", s);
return false;
}

3
util/text-options.hh
View File

@ -141,14 +141,13 @@ parse_unicodes (const char *name G_GNUC_UNUSED,
}
else
{
#define DELIMITERS "<+->{},;&#\\xXuUnNiI\n\t\v\f\r "
char *s = (char *) arg;
char *p;
while (s && *s)
{
#define DELIMITERS "<+>{},;&#\\xXuUnNiI\n\t\v\f\r "
while (*s && strchr (DELIMITERS, *s))
s++;
if (!*s)