function css_font($value, $root)
{
// according to CSS 2.1 standard,
// value of 'font' CSS property can be represented as follows:
// [ <'font-style'> || <'font-variant'> || <'font-weight'> ]? <'font-size'> [ / <'line-height'> ]? <'font-family'> ] |
// caption | icon | menu | message-box | small-caption | status-bar | inherit
// Note that font-family value, unlike other values, can contain spaces (in this case it should be quoted)
// Breaking value by spaces, we'll break such multi-word families.
// Replace all white space sequences with only one space;
// Remove spaces after commas; it will allow us
// to split value correctly using look-backward expressions
$value = preg_replace("/\\s+/", " ", $value);
$value = preg_replace("/,\\s+/", ",", $value);
// Split value to subvalues by all whitespaces NOT preceeded by comma;
// thus, we'll keep all alternative font-families together instead of breaking them.
// Still we have a problem with multi-word family names.
$subvalues = preg_split("/ /", $value);
// Let's scan subvalues we've received and join values containing multiword family names
$family_start = 0;
$family_running = false;
$family_double_quote = false;
for ($i = 0; $i < count($subvalues); $i++) {
$current_value = $subvalues[$i];
if ($family_running) {
$subvalues[$family_start] .= " " . $subvalues[$i];
// Remove this subvalues from the subvalue list at all
array_splice($subvalues, $i, 1);
$i--;
}
// Check if current subvalue contains beginning of multi-word family name
// We can detect it by searching for single or double quote without pair
if ($family_running && $family_double_quote && !preg_match('/^[^"]*("[^"]*")*[^"]*$/', $current_value)) {
$family_running = false;
} elseif ($family_running && !$family_double_quote && !preg_match("/^[^']*('[^']*')*[^']*\$/", $current_value)) {
$family_running = false;
} elseif (!$family_running && !preg_match("/^[^']*('[^']*')*[^']*\$/", $current_value)) {
$family_running = true;
$family_start = $i;
$family_double_quote = false;
} elseif (!$family_running && !preg_match('/^[^"]*("[^"]*")*[^"]*$/', $current_value)) {
$family_running = true;
$family_start = $i;
$family_double_quote = true;
}
}
// Now process subvalues one-by-one.
foreach ($subvalues as $subvalue) {
$subvalue = trim(strtolower($subvalue));
switch (detect_font_value_type($subvalue)) {
case FONT_VALUE_STYLE:
css_font_style($subvalue, $root);
break;
case FONT_VALUE_WEIGHT:
css_font_weight($subvalue, $root);
break;
case FONT_VALUE_SIZE:
css_font_size($subvalue, $root);
break;
case FONT_VALUE_FAMILY:
css_font_family($subvalue, $root);
break;
}
}
}
function apply_css_rule_obj($properties, $baseurl, $root, &$pipeline)
{
$pipeline->push_base_url($baseurl);
foreach ($properties as $key => $value) {
switch ($key) {
case 'border':
css_border($value, $root);
break;
case 'border-color':
css_border_color($value, $root);
break;
case 'border-top':
css_border_top($value, $root);
break;
case 'border-right':
css_border_right($value, $root);
break;
case 'border-bottom':
css_border_bottom($value, $root);
break;
case 'border-left':
css_border_left($value, $root);
break;
case 'border-style':
css_border_style($value, $root);
break;
case 'border-top-style':
css_border_top_style($value, $root);
break;
case 'border-right-style':
css_border_right_style($value, $root);
break;
case 'border-bottom-style':
css_border_bottom_style($value, $root);
break;
case 'border-left-style':
css_border_left_style($value, $root);
break;
case 'border-top-color':
css_border_top_color($value, $root);
break;
case 'border-right-color':
css_border_right_color($value, $root);
break;
case 'border-bottom-color':
css_border_bottom_color($value, $root);
break;
case 'border-left-color':
css_border_left_color($value, $root);
break;
case 'border-width':
css_border_width($value, $root);
break;
case 'border-top-width':
css_border_top_width($value, $root);
break;
case 'border-right-width':
css_border_right_width($value, $root);
break;
case 'border-bottom-width':
css_border_bottom_width($value, $root);
break;
case 'border-left-width':
css_border_left_width($value, $root);
break;
case 'font':
css_font($value, $root);
break;
case 'font-family':
css_font_family($value, $root);
break;
case 'font-size':
css_font_size($value, $root);
break;
case 'font-style':
css_font_style($value, $root);
break;
case 'font-weight':
css_font_weight($value, $root);
break;
case 'line-height':
css_line_height($value, $root);
break;
default:
$handler =& get_css_handler($key);
if ($handler) {
$handler->replace($value, $pipeline);
}
break;
}
}
$pipeline->pop_base_url();
}