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authorzotlabs <mike@macgirvin.com>2020-02-28 14:31:49 -0800
committerzotlabs <mike@macgirvin.com>2020-02-28 14:31:49 -0800
commita776f69a59718b3e9034ef12f543b0aaef317855 (patch)
treec349682d43cf5e6d34c8b0a179f2a23e86cc43b0 /include/bbcode.php
parent85cf25a2a8bfbbfe10de485d4affd54626fbbfa4 (diff)
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alt attribute for images
Diffstat (limited to 'include/bbcode.php')
-rw-r--r--include/bbcode.php93
1 files changed, 58 insertions, 35 deletions
diff --git a/include/bbcode.php b/include/bbcode.php
index f3ecbd9e9..bb7b9e2dd 100644
--- a/include/bbcode.php
+++ b/include/bbcode.php
@@ -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) {