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Bug 722: Truncate names of HTML media types.

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HTML 4.01 section 6.13 says each entry in the list
must be truncated before the first character that
is not in the allowed set.
This commit is contained in:
Kalle Olavi Niemitalo 2008-01-12 10:08:02 +02:00 committed by Kalle Olavi Niemitalo
parent 65b365587e
commit d2733656b8
1 changed files with 13 additions and 4 deletions
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17
src/document/html/parser/parse.c
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@ -1144,7 +1144,6 @@ int
supports_html_media_attr(const unsigned char *media)
{
const unsigned char *optstr;
const unsigned char *beg, *end;
/* The 1999-12-24 edition of HTML 4.01 is inconsistent on what
* it means if a STYLE or LINK element has no media attribute:
@ -1175,15 +1174,25 @@ supports_html_media_attr(const unsigned char *media)
optstr = get_opt_str("document.css.media", NULL);
while (*media != '\0') {
const unsigned char *beg, *end;
while (*media == ' ')
++media;
beg = media;
media += strcspn(media, ",");
end = media;
if (*media == ',')
++media;
while (end > beg && end[-1] == ' ')
--end;
/* HTML 4.01 section 6.13 says each entry in the list
* must be truncated before the first character that
* is not in the allowed set. */
end = beg;
while ((*end >= 0x41 && *end <= 0x5a)
|| (*end >= 0x61 && *end <= 0x7a)
|| (*end >= 0x30 && *end <= 0x39)
|| *end == 0x29)
++end;
if (end > beg
&& supports_css_media_type(optstr, beg, end - beg))
return 1;