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alt attribute for images

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zotlabs
2020-02-28 14:31:49 -08:00
parent 85cf25a2a8
commit a776f69a59
1 changed files with 58 additions and 35 deletions
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93
include/bbcode.php
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@@ -655,6 +655,63 @@ function bb_observer($Text) {
return $Text;
}
function bb_imgoptions($match) {
// $Text = preg_replace_callback("/\[([zi])mg([ \=])(.*?)\](.*?)\[\/[zi]mg\]/ism",'bb_imgoptions',$Text);
// alt text cannot contain ']'
// [img|zmg=wwwxhhh float=left|right alt=alt text]url[/img|zmg]
$local_match = null;
$width = 0;
$float = false;
$alt = false;
$style = EMPTY_STR;
if ($match[2] === '=') {
// pull out (optional) size declarations first
if (preg_match("/([0-9]*)x([0-9]*)/ism",$match[3],$local_match)) {
$width = intval($local_match[1]);
}
$match[3] = substr($match[3],strpos($match[3],' '));
}
// then (optional) float specifiers
if ($n = strpos($match[3],'float=left') !== false) {
$float = 'left';
$match[3] = substr($match[3],$n + 10);
}
if ($n = strpos($match[3],'float=right') !== false) {
$float = 'right';
$match[3] = substr($match[3],$n + 11);
}
// finally alt text which extends to the close of the tag
if ($n = strpos($match[3],'alt=') !== false) {
$alt = substr($match[3],$n + 4);
}
// now assemble the resulting img tag from these components
$output = '<img ' . (($match[1] === 'z') ? 'class="zrl" ' : '') . ' ';
if ($width) {
$style .= 'width: 100%; max-width: ' . $width . 'px; ';
}
else {
$style .= 'max-width: 100%; ';
}
if ($float) {
$style .= 'float: ' . $float . '; ';
}
$output .= (($style) ? 'style="' . $style . '" ' : '') . 'alt="' . htmlentities(($alt) ? $alt : t('Image/photo'),ENT_COMPAT,'UTF-8') . '" ';
$output .= 'src="' . $match[4] . '" >';
return $output;
}
function bb_code_protect($s) {
return 'b64.^9e%.' . base64_encode($s) . '.b64.$9e%';
}
@@ -1250,41 +1307,7 @@ function bbcode($Text, $options = []) {
$Text = preg_replace("/\[zmg=http(.*?)\](.*?)\[\/zmg\]/ism", '<img class="zrl" style="max-width: 100%;" src="http$1" alt="$2" title="$2"/>', $Text);
}
// [img float={left, right}]pathtoimage[/img]
if (strpos($Text,'[/img]') !== false) {
$Text = preg_replace("/\[img float=left\](.*?)\[\/img\]/ism", '<img src="$1" style="max-width: 100%; float: left;" alt="' . t('Image/photo') . '" />', $Text);
}
if (strpos($Text,'[/img]') !== false) {
$Text = preg_replace("/\[img float=right\](.*?)\[\/img\]/ism", '<img src="$1" style="max-width: 100%; float: right;" alt="' . t('Image/photo') . '" />', $Text);
}
if (strpos($Text,'[/zmg]') !== false) {
$Text = preg_replace("/\[zmg float=left\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$1" style="max-width: 100%; float: left;" alt="' . t('Image/photo') . '" />', $Text);
}
if (strpos($Text,'[/zmg]') !== false) {
$Text = preg_replace("/\[zmg float=right\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$1" style="max-width: 100%; float: right;" alt="' . t('Image/photo') . '" />', $Text);
}
// [img=widthxheight]pathtoimage[/img]
if (strpos($Text,'[/img]') !== false) {
$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: 100%; max-width: $1px;" alt="' . t('Image/photo') . '" />', $Text);
}
if (strpos($Text,'[/zmg]') !== false) {
$Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: 100%; max-width: $1px;" alt="' . t('Image/photo') . '" />', $Text);
}
// [img=widthxheight float={left, right}]pathtoimage[/img]
if (strpos($Text,'[/img]') !== false) {
$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*) float=left\](.*?)\[\/img\]/ism", '<img src="$3" style="width: 100%; max-width: $1px; float: left;" alt="' . t('Image/photo') . '" />', $Text);
}
if (strpos($Text,'[/img]') !== false) {
$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*) float=right\](.*?)\[\/img\]/ism", '<img src="$3" style="width: 100%; max-width: $1px; float: right;" alt="' . t('Image/photo') . '" />', $Text);
}
if (strpos($Text,'[/zmg]') !== false) {
$Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*) float=left\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: 100%; max-width: $1px; float: left;" alt="' . t('Image/photo') . '" />', $Text);
}
if (strpos($Text,'[/zmg]') !== false) {
$Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*) float=right\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: 100%; max-width: $1px; float: right;" alt="' . t('Image/photo') . '" />', $Text);
}
$Text = preg_replace_callback("/\[([zi])mg([ \=])(.*?)\](.*?)\[\/[zi]mg\]/ism",'bb_imgoptions',$Text);
// style (sanitized)
if (strpos($Text,'[/style]') !== false) {