static void
escape_string (GString *string)
{
const char *p = string->str;
gunichar wc;
while (p < string->str + string->len)
{
gboolean safe;
wc = g_utf8_get_char_validated (p, -1);
if (wc == (gunichar)-1 || wc == (gunichar)-2)
{
gchar *tmp;
guint pos;
pos = p - string->str;
/* Emit invalid UTF-8 as hex escapes
*/
tmp = g_strdup_printf ("\\x%02x", (guint)(guchar)*p);
g_string_erase (string, pos, 1);
g_string_insert (string, pos, tmp);
p = string->str + (pos + 4); /* Skip over escape sequence */
g_free (tmp);
continue;
}
if (wc == '\r')
{
safe = *(p + 1) == '\n';
}
else
{
safe = CHAR_IS_SAFE (wc);
}
if (!safe)
{
gchar *tmp;
guint pos;
pos = p - string->str;
/* Largest char we escape is 0x0a, so we don't have to worry
* about 8-digit \Uxxxxyyyy
*/
tmp = g_strdup_printf ("\\u%04x", wc);
g_string_erase (string, pos, g_utf8_next_char (p) - p);
g_string_insert (string, pos, tmp);
g_free (tmp);
p = string->str + (pos + 6); /* Skip over escape sequence */
}
else
p = g_utf8_next_char (p);
}
}
static gchar*
strdup_convert (const gchar *string,
const gchar *charset)
{
if (!g_utf8_validate (string, -1, NULL))
{
GString *gstring = g_string_new ("[Invalid UTF-8] ");
guchar *p;
for (p = (guchar *)string; *p; p++)
{
if (CHAR_IS_SAFE(*p) &&
!(*p == '\r' && *(p + 1) != '\n') &&
*p < 0x80)
g_string_append_c (gstring, *p);
else
g_string_append_printf (gstring, "\\x%02x", (guint)(guchar)*p);
}
return g_string_free (gstring, FALSE);
}
else
{
GError *err = NULL;
gchar *result = g_convert_with_fallback (string, -1, charset, "UTF-8", "?", NULL, NULL, &err);
if (result)
return result;
else
{
#ifdef USE_LIBICONV_GNU
/* No libiconv in Android, so we only duplicate message if no
* USE_LIBICONV_GNU */
/* Not thread-safe, but doesn't matter if we print the warning twice
*/
static gboolean warned = FALSE;
if (!warned)
{
warned = TRUE;
_g_fprintf (stderr, "GLib: Cannot convert message: %s\n", err->message);
}
g_error_free (err);
#endif
return g_strdup (string);
}
}
}
