#include "hb-private.hh"
-#include "hb-version.h"
-
#include "hb-mutex-private.hh"
#include "hb-object-private.hh"
#include <locale.h>
+#ifdef HAVE_XLOCALE_H
+#include <xlocale.h>
+#endif
+
+
+/* hb_options_t */
+
+hb_options_union_t _hb_options;
+
+void
+_hb_options_init (void)
+{
+ hb_options_union_t u;
+ u.i = 0;
+ u.opts.initialized = 1;
+
+ char *c = getenv ("HB_OPTIONS");
+ u.opts.uniscribe_bug_compatible = c && strstr (c, "uniscribe-bug-compatible");
+ /* This is idempotent and threadsafe. */
+ _hb_options = u;
+}
/* hb_tag_t */
+/**
+ * hb_tag_from_string:
+ * @str: (array length=len) (element-type uint8_t):
+ * @len:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_tag_t
-hb_tag_from_string (const char *s, int len)
+hb_tag_from_string (const char *str, int len)
{
char tag[4];
unsigned int i;
- if (!s || !len || !*s)
+ if (!str || !len || !*str)
return HB_TAG_NONE;
if (len < 0 || len > 4)
len = 4;
- for (i = 0; i < (unsigned) len && s[i]; i++)
- tag[i] = s[i];
+ for (i = 0; i < (unsigned) len && str[i]; i++)
+ tag[i] = str[i];
for (; i < 4; i++)
tag[i] = ' ';
- return HB_TAG_CHAR4 (tag);
+ return HB_TAG (tag[0], tag[1], tag[2], tag[3]);
+}
+
+/**
+ * hb_tag_to_string:
+ * @tag:
+ * @buf: (out caller-allocates) (array fixed-size=4) (element-type uint8_t):
+ *
+ *
+ *
+ * Since: 0.9.5
+ **/
+void
+hb_tag_to_string (hb_tag_t tag, char *buf)
+{
+ buf[0] = (char) (uint8_t) (tag >> 24);
+ buf[1] = (char) (uint8_t) (tag >> 16);
+ buf[2] = (char) (uint8_t) (tag >> 8);
+ buf[3] = (char) (uint8_t) (tag >> 0);
}
"btt"
};
+/**
+ * hb_direction_from_string:
+ * @str: (array length=len) (element-type uint8_t):
+ * @len:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_direction_t
hb_direction_from_string (const char *str, int len)
{
return HB_DIRECTION_INVALID;
}
+/**
+ * hb_direction_to_string:
+ * @direction:
+ *
+ *
+ *
+ * Return value: (transfer none):
+ *
+ * Since: 0.9.2
+ **/
const char *
hb_direction_to_string (hb_direction_t direction)
{
'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0, 0, 0, 0, 0
};
-static hb_bool_t
+static bool
lang_equal (hb_language_t v1,
const void *v2)
{
const unsigned char *p1 = (const unsigned char *) v1;
const unsigned char *p2 = (const unsigned char *) v2;
- while (*p1 && *p1 == canon_map[*p2])
- p1++, p2++;
+ while (*p1 && *p1 == canon_map[*p2]) {
+ p1++;
+ p2++;
+ }
return *p1 == canon_map[*p2];
}
}
inline hb_language_item_t & operator = (const char *s) {
- lang = (hb_language_t) strdup (s);
- for (unsigned char *p = (unsigned char *) lang; *p; p++)
- *p = canon_map[*p];
+ /* If a custom allocated is used calling strdup() pairs
+ badly with a call to the custom free() in finish() below.
+ Therefore don't call strdup(), implement its behavior.
+ */
+ size_t len = strlen(s) + 1;
+ lang = (hb_language_t) malloc(len);
+ if (likely (lang))
+ {
+ memcpy((unsigned char *) lang, s, len);
+ for (unsigned char *p = (unsigned char *) lang; *p; p++)
+ *p = canon_map[*p];
+ }
return *this;
}
- void finish (void) { free (lang); }
+ void finish (void) { free ((void *) lang); }
};
static hb_language_item_t *langs;
-static
-void free_langs (void)
+#ifdef HB_USE_ATEXIT
+static void
+free_langs (void)
{
while (langs) {
hb_language_item_t *next = langs->next;
langs = next;
}
}
+#endif
static hb_language_item_t *
lang_find_or_insert (const char *key)
/* Not found; allocate one. */
hb_language_item_t *lang = (hb_language_item_t *) calloc (1, sizeof (hb_language_item_t));
if (unlikely (!lang))
- return NULL;
+ return nullptr;
lang->next = first_lang;
*lang = key;
+ if (unlikely (!lang->lang))
+ {
+ free (lang);
+ return nullptr;
+ }
if (!hb_atomic_ptr_cmpexch (&langs, first_lang, lang)) {
+ lang->finish ();
free (lang);
goto retry;
}
-#ifdef HAVE_ATEXIT
+#ifdef HB_USE_ATEXIT
if (!first_lang)
atexit (free_langs); /* First person registers atexit() callback. */
#endif
}
+/**
+ * hb_language_from_string:
+ * @str: (array length=len) (element-type uint8_t): a string representing
+ * ISO 639 language code
+ * @len: length of the @str, or -1 if it is %NULL-terminated.
+ *
+ * Converts @str representing an ISO 639 language code to the corresponding
+ * #hb_language_t.
+ *
+ * Return value: (transfer none):
+ * The #hb_language_t corresponding to the ISO 639 language code.
+ *
+ * Since: 0.9.2
+ **/
hb_language_t
hb_language_from_string (const char *str, int len)
{
if (!str || !len || !*str)
return HB_LANGUAGE_INVALID;
- char strbuf[32];
- if (len >= 0) {
+ hb_language_item_t *item = nullptr;
+ if (len >= 0)
+ {
+ /* NUL-terminate it. */
+ char strbuf[64];
len = MIN (len, (int) sizeof (strbuf) - 1);
- str = (char *) memcpy (strbuf, str, len);
+ memcpy (strbuf, str, len);
strbuf[len] = '\0';
+ item = lang_find_or_insert (strbuf);
}
-
- hb_language_item_t *item = lang_find_or_insert (str);
+ else
+ item = lang_find_or_insert (str);
return likely (item) ? item->lang : HB_LANGUAGE_INVALID;
}
+/**
+ * hb_language_to_string:
+ * @language: an #hb_language_t to convert.
+ *
+ * See hb_language_from_string().
+ *
+ * Return value: (transfer none):
+ * A %NULL-terminated string representing the @language. Must not be freed by
+ * the caller.
+ *
+ * Since: 0.9.2
+ **/
const char *
hb_language_to_string (hb_language_t language)
{
- /* This is actually NULL-safe! */
+ /* This is actually nullptr-safe! */
return language->s;
}
+/**
+ * hb_language_get_default:
+ *
+ *
+ *
+ * Return value: (transfer none):
+ *
+ * Since: 0.9.2
+ **/
hb_language_t
hb_language_get_default (void)
{
hb_language_t language = (hb_language_t) hb_atomic_ptr_get (&default_language);
if (unlikely (language == HB_LANGUAGE_INVALID)) {
- language = hb_language_from_string (setlocale (LC_CTYPE, NULL), -1);
- hb_atomic_ptr_cmpexch (&default_language, HB_LANGUAGE_INVALID, language);
+ language = hb_language_from_string (setlocale (LC_CTYPE, nullptr), -1);
+ (void) hb_atomic_ptr_cmpexch (&default_language, HB_LANGUAGE_INVALID, language);
}
return default_language;
/* hb_script_t */
+/**
+ * hb_script_from_iso15924_tag:
+ * @tag: an #hb_tag_t representing an ISO 15924 tag.
+ *
+ * Converts an ISO 15924 script tag to a corresponding #hb_script_t.
+ *
+ * Return value:
+ * An #hb_script_t corresponding to the ISO 15924 tag.
+ *
+ * Since: 0.9.2
+ **/
hb_script_t
hb_script_from_iso15924_tag (hb_tag_t tag)
{
return HB_SCRIPT_INVALID;
/* Be lenient, adjust case (one capital letter followed by three small letters) */
- tag = (tag & 0xDFDFDFDF) | 0x00202020;
+ tag = (tag & 0xDFDFDFDFu) | 0x00202020u;
switch (tag) {
}
/* If it looks right, just use the tag as a script */
- if (((uint32_t) tag & 0xE0E0E0E0) == 0x40606060)
+ if (((uint32_t) tag & 0xE0E0E0E0u) == 0x40606060u)
return (hb_script_t) tag;
/* Otherwise, return unknown */
return HB_SCRIPT_UNKNOWN;
}
+/**
+ * hb_script_from_string:
+ * @str: (array length=len) (element-type uint8_t): a string representing an
+ * ISO 15924 tag.
+ * @len: length of the @str, or -1 if it is %NULL-terminated.
+ *
+ * Converts a string @str representing an ISO 15924 script tag to a
+ * corresponding #hb_script_t. Shorthand for hb_tag_from_string() then
+ * hb_script_from_iso15924_tag().
+ *
+ * Return value:
+ * An #hb_script_t corresponding to the ISO 15924 tag.
+ *
+ * Since: 0.9.2
+ **/
hb_script_t
-hb_script_from_string (const char *s, int len)
+hb_script_from_string (const char *str, int len)
{
- return hb_script_from_iso15924_tag (hb_tag_from_string (s, len));
+ return hb_script_from_iso15924_tag (hb_tag_from_string (str, len));
}
+/**
+ * hb_script_to_iso15924_tag:
+ * @script: an #hb_script_ to convert.
+ *
+ * See hb_script_from_iso15924_tag().
+ *
+ * Return value:
+ * An #hb_tag_t representing an ISO 15924 script tag.
+ *
+ * Since: 0.9.2
+ **/
hb_tag_t
hb_script_to_iso15924_tag (hb_script_t script)
{
return (hb_tag_t) script;
}
+/**
+ * hb_script_get_horizontal_direction:
+ * @script:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_direction_t
hb_script_get_horizontal_direction (hb_script_t script)
{
case HB_SCRIPT_MEROITIC_CURSIVE:
case HB_SCRIPT_MEROITIC_HIEROGLYPHS:
+ /* Unicode-7.0 additions */
+ case HB_SCRIPT_MANICHAEAN:
+ case HB_SCRIPT_MENDE_KIKAKUI:
+ case HB_SCRIPT_NABATAEAN:
+ case HB_SCRIPT_OLD_NORTH_ARABIAN:
+ case HB_SCRIPT_PALMYRENE:
+ case HB_SCRIPT_PSALTER_PAHLAVI:
+
+ /* Unicode-8.0 additions */
+ case HB_SCRIPT_HATRAN:
+ case HB_SCRIPT_OLD_HUNGARIAN:
+
+ /* Unicode-9.0 additions */
+ case HB_SCRIPT_ADLAM:
+
return HB_DIRECTION_RTL;
}
hb_user_data_array_t::set (hb_user_data_key_t *key,
void * data,
hb_destroy_func_t destroy,
- hb_bool_t replace,
- hb_mutex_t &lock)
+ hb_bool_t replace)
{
if (!key)
return false;
}
}
hb_user_data_item_t item = {key, data, destroy};
- bool ret = !!items.replace_or_insert (item, lock, replace);
+ bool ret = !!items.replace_or_insert (item, lock, (bool) replace);
return ret;
}
void *
-hb_user_data_array_t::get (hb_user_data_key_t *key,
- hb_mutex_t &lock)
+hb_user_data_array_t::get (hb_user_data_key_t *key)
{
- hb_user_data_item_t item = {NULL };
+ hb_user_data_item_t item = {nullptr, nullptr, nullptr};
- return items.find (key, &item, lock) ? item.data : NULL;
-}
-
-void
-hb_user_data_array_t::finish (hb_mutex_t &lock)
-{
- items.finish (lock);
+ return items.find (key, &item, lock) ? item.data : nullptr;
}
/* hb_version */
+/**
+ * hb_version:
+ * @major: (out): Library major version component.
+ * @minor: (out): Library minor version component.
+ * @micro: (out): Library micro version component.
+ *
+ * Returns library version as three integer components.
+ *
+ * Since: 0.9.2
+ **/
void
hb_version (unsigned int *major,
unsigned int *minor,
*micro = HB_VERSION_MICRO;
}
+/**
+ * hb_version_string:
+ *
+ * Returns library version as a string with three components.
+ *
+ * Return value: library version string.
+ *
+ * Since: 0.9.2
+ **/
const char *
hb_version_string (void)
{
return HB_VERSION_STRING;
}
+/**
+ * hb_version_atleast:
+ * @major:
+ * @minor:
+ * @micro:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.30
+ **/
hb_bool_t
-hb_version_check (unsigned int major,
- unsigned int minor,
- unsigned int micro)
+hb_version_atleast (unsigned int major,
+ unsigned int minor,
+ unsigned int micro)
+{
+ return HB_VERSION_ATLEAST (major, minor, micro);
+}
+
+
+
+/* hb_feature_t and hb_variation_t */
+
+static bool
+parse_space (const char **pp, const char *end)
+{
+ while (*pp < end && ISSPACE (**pp))
+ (*pp)++;
+ return true;
+}
+
+static bool
+parse_char (const char **pp, const char *end, char c)
+{
+ parse_space (pp, end);
+
+ if (*pp == end || **pp != c)
+ return false;
+
+ (*pp)++;
+ return true;
+}
+
+static bool
+parse_uint (const char **pp, const char *end, unsigned int *pv)
+{
+ char buf[32];
+ unsigned int len = MIN (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - *pp));
+ strncpy (buf, *pp, len);
+ buf[len] = '\0';
+
+ char *p = buf;
+ char *pend = p;
+ unsigned int v;
+
+ /* Intentionally use strtol instead of strtoul, such that
+ * -1 turns into "big number"... */
+ errno = 0;
+ v = strtol (p, &pend, 0);
+ if (errno || p == pend)
+ return false;
+
+ *pv = v;
+ *pp += pend - p;
+ return true;
+}
+
+static bool
+parse_uint32 (const char **pp, const char *end, uint32_t *pv)
+{
+ char buf[32];
+ unsigned int len = MIN (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - *pp));
+ strncpy (buf, *pp, len);
+ buf[len] = '\0';
+
+ char *p = buf;
+ char *pend = p;
+ unsigned int v;
+
+ /* Intentionally use strtol instead of strtoul, such that
+ * -1 turns into "big number"... */
+ errno = 0;
+ v = strtol (p, &pend, 0);
+ if (errno || p == pend)
+ return false;
+
+ *pv = v;
+ *pp += pend - p;
+ return true;
+}
+
+#if defined (HAVE_NEWLOCALE) && defined (HAVE_STRTOD_L)
+#define USE_XLOCALE 1
+#define HB_LOCALE_T locale_t
+#define HB_CREATE_LOCALE(locName) newlocale (LC_ALL_MASK, locName, nullptr)
+#define HB_FREE_LOCALE(loc) freelocale (loc)
+#elif defined(_MSC_VER)
+#define USE_XLOCALE 1
+#define HB_LOCALE_T _locale_t
+#define HB_CREATE_LOCALE(locName) _create_locale (LC_ALL, locName)
+#define HB_FREE_LOCALE(loc) _free_locale (loc)
+#define strtod_l(a, b, c) _strtod_l ((a), (b), (c))
+#endif
+
+#ifdef USE_XLOCALE
+
+static HB_LOCALE_T C_locale;
+
+#ifdef HB_USE_ATEXIT
+static void
+free_C_locale (void)
{
- return HB_VERSION_CHECK (major, minor, micro);
+ if (C_locale)
+ HB_FREE_LOCALE (C_locale);
}
+#endif
+
+static HB_LOCALE_T
+get_C_locale (void)
+{
+retry:
+ HB_LOCALE_T C = (HB_LOCALE_T) hb_atomic_ptr_get (&C_locale);
+ if (unlikely (!C))
+ {
+ C = HB_CREATE_LOCALE ("C");
+ if (!hb_atomic_ptr_cmpexch (&C_locale, nullptr, C))
+ {
+ HB_FREE_LOCALE (C_locale);
+ goto retry;
+ }
+
+#ifdef HB_USE_ATEXIT
+ atexit (free_C_locale); /* First person registers atexit() callback. */
+#endif
+ }
+
+ return C;
+}
+#endif
+
+static bool
+parse_float (const char **pp, const char *end, float *pv)
+{
+ char buf[32];
+ unsigned int len = MIN (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - *pp));
+ strncpy (buf, *pp, len);
+ buf[len] = '\0';
+
+ char *p = buf;
+ char *pend = p;
+ float v;
+
+ errno = 0;
+#ifdef USE_XLOCALE
+ v = strtod_l (p, &pend, get_C_locale ());
+#else
+ v = strtod (p, &pend);
+#endif
+ if (errno || p == pend)
+ return false;
+
+ *pv = v;
+ *pp += pend - p;
+ return true;
+}
+
+static bool
+parse_bool (const char **pp, const char *end, uint32_t *pv)
+{
+ parse_space (pp, end);
+
+ const char *p = *pp;
+ while (*pp < end && ISALPHA(**pp))
+ (*pp)++;
+
+ /* CSS allows on/off as aliases 1/0. */
+ if (*pp - p == 2 && 0 == strncmp (p, "on", 2))
+ *pv = 1;
+ else if (*pp - p == 3 && 0 == strncmp (p, "off", 3))
+ *pv = 0;
+ else
+ return false;
+
+ return true;
+}
+
+/* hb_feature_t */
+
+static bool
+parse_feature_value_prefix (const char **pp, const char *end, hb_feature_t *feature)
+{
+ if (parse_char (pp, end, '-'))
+ feature->value = 0;
+ else {
+ parse_char (pp, end, '+');
+ feature->value = 1;
+ }
+
+ return true;
+}
+
+static bool
+parse_tag (const char **pp, const char *end, hb_tag_t *tag)
+{
+ parse_space (pp, end);
+
+ char quote = 0;
+
+ if (*pp < end && (**pp == '\'' || **pp == '"'))
+ {
+ quote = **pp;
+ (*pp)++;
+ }
+
+ const char *p = *pp;
+ while (*pp < end && ISALNUM(**pp))
+ (*pp)++;
+
+ if (p == *pp || *pp - p > 4)
+ return false;
+
+ *tag = hb_tag_from_string (p, *pp - p);
+
+ if (quote)
+ {
+ /* CSS expects exactly four bytes. And we only allow quotations for
+ * CSS compatibility. So, enforce the length. */
+ if (*pp - p != 4)
+ return false;
+ if (*pp == end || **pp != quote)
+ return false;
+ (*pp)++;
+ }
+
+ return true;
+}
+
+static bool
+parse_feature_indices (const char **pp, const char *end, hb_feature_t *feature)
+{
+ parse_space (pp, end);
+
+ bool has_start;
+
+ feature->start = 0;
+ feature->end = (unsigned int) -1;
+
+ if (!parse_char (pp, end, '['))
+ return true;
+
+ has_start = parse_uint (pp, end, &feature->start);
+
+ if (parse_char (pp, end, ':')) {
+ parse_uint (pp, end, &feature->end);
+ } else {
+ if (has_start)
+ feature->end = feature->start + 1;
+ }
+
+ return parse_char (pp, end, ']');
+}
+
+static bool
+parse_feature_value_postfix (const char **pp, const char *end, hb_feature_t *feature)
+{
+ bool had_equal = parse_char (pp, end, '=');
+ bool had_value = parse_uint32 (pp, end, &feature->value) ||
+ parse_bool (pp, end, &feature->value);
+ /* CSS doesn't use equal-sign between tag and value.
+ * If there was an equal-sign, then there *must* be a value.
+ * A value without an equal-sign is ok, but not required. */
+ return !had_equal || had_value;
+}
+
+static bool
+parse_one_feature (const char **pp, const char *end, hb_feature_t *feature)
+{
+ return parse_feature_value_prefix (pp, end, feature) &&
+ parse_tag (pp, end, &feature->tag) &&
+ parse_feature_indices (pp, end, feature) &&
+ parse_feature_value_postfix (pp, end, feature) &&
+ parse_space (pp, end) &&
+ *pp == end;
+}
+
+/**
+ * hb_feature_from_string:
+ * @str: (array length=len) (element-type uint8_t): a string to parse
+ * @len: length of @str, or -1 if string is %NULL terminated
+ * @feature: (out): the #hb_feature_t to initialize with the parsed values
+ *
+ * Parses a string into a #hb_feature_t.
+ *
+ * TODO: document the syntax here.
+ *
+ * Return value:
+ * %true if @str is successfully parsed, %false otherwise.
+ *
+ * Since: 0.9.5
+ **/
+hb_bool_t
+hb_feature_from_string (const char *str, int len,
+ hb_feature_t *feature)
+{
+ hb_feature_t feat;
+
+ if (len < 0)
+ len = strlen (str);
+
+ if (likely (parse_one_feature (&str, str + len, &feat)))
+ {
+ if (feature)
+ *feature = feat;
+ return true;
+ }
+
+ if (feature)
+ memset (feature, 0, sizeof (*feature));
+ return false;
+}
+
+/**
+ * hb_feature_to_string:
+ * @feature: an #hb_feature_t to convert
+ * @buf: (array length=size) (out): output string
+ * @size: the allocated size of @buf
+ *
+ * Converts a #hb_feature_t into a %NULL-terminated string in the format
+ * understood by hb_feature_from_string(). The client in responsible for
+ * allocating big enough size for @buf, 128 bytes is more than enough.
+ *
+ * Since: 0.9.5
+ **/
+void
+hb_feature_to_string (hb_feature_t *feature,
+ char *buf, unsigned int size)
+{
+ if (unlikely (!size)) return;
+
+ char s[128];
+ unsigned int len = 0;
+ if (feature->value == 0)
+ s[len++] = '-';
+ hb_tag_to_string (feature->tag, s + len);
+ len += 4;
+ while (len && s[len - 1] == ' ')
+ len--;
+ if (feature->start != 0 || feature->end != (unsigned int) -1)
+ {
+ s[len++] = '[';
+ if (feature->start)
+ len += MAX (0, snprintf (s + len, ARRAY_LENGTH (s) - len, "%u", feature->start));
+ if (feature->end != feature->start + 1) {
+ s[len++] = ':';
+ if (feature->end != (unsigned int) -1)
+ len += MAX (0, snprintf (s + len, ARRAY_LENGTH (s) - len, "%u", feature->end));
+ }
+ s[len++] = ']';
+ }
+ if (feature->value > 1)
+ {
+ s[len++] = '=';
+ len += MAX (0, snprintf (s + len, ARRAY_LENGTH (s) - len, "%u", feature->value));
+ }
+ assert (len < ARRAY_LENGTH (s));
+ len = MIN (len, size - 1);
+ memcpy (buf, s, len);
+ buf[len] = '\0';
+}
+
+/* hb_variation_t */
+
+static bool
+parse_variation_value (const char **pp, const char *end, hb_variation_t *variation)
+{
+ parse_char (pp, end, '='); /* Optional. */
+ return parse_float (pp, end, &variation->value);
+}
+
+static bool
+parse_one_variation (const char **pp, const char *end, hb_variation_t *variation)
+{
+ return parse_tag (pp, end, &variation->tag) &&
+ parse_variation_value (pp, end, variation) &&
+ parse_space (pp, end) &&
+ *pp == end;
+}
+
+/**
+ * hb_variation_from_string:
+ *
+ * Since: 1.4.2
+ */
+hb_bool_t
+hb_variation_from_string (const char *str, int len,
+ hb_variation_t *variation)
+{
+ hb_variation_t var;
+
+ if (len < 0)
+ len = strlen (str);
+
+ if (likely (parse_one_variation (&str, str + len, &var)))
+ {
+ if (variation)
+ *variation = var;
+ return true;
+ }
+
+ if (variation)
+ memset (variation, 0, sizeof (*variation));
+ return false;
+}
+
+/**
+ * hb_variation_to_string:
+ *
+ * Since: 1.4.2
+ */
+void
+hb_variation_to_string (hb_variation_t *variation,
+ char *buf, unsigned int size)
+{
+ if (unlikely (!size)) return;
+
+ char s[128];
+ unsigned int len = 0;
+ hb_tag_to_string (variation->tag, s + len);
+ len += 4;
+ while (len && s[len - 1] == ' ')
+ len--;
+ s[len++] = '=';
+ len += MAX (0, snprintf (s + len, ARRAY_LENGTH (s) - len, "%g", variation->value));
+
+ assert (len < ARRAY_LENGTH (s));
+ len = MIN (len, size - 1);
+ memcpy (buf, s, len);
+ buf[len] = '\0';
+}
projects / platform / upstream / harfbuzz.git / blobdiff