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Adding alt text to pictures
Status: offline
jmucchiello
Forum User
Full Member
Registered: 08/29/05
Posts: 985
In a thread in general help someone asked for alt text for stories. Here is the code. After you replace these two functions in /path.to.geeklog/system/lib_story.php, you can now enter image helper tags as [imageX:Alt text], [imageX_left:Alt text], and [image_right:Alt_text]
I have not thoroughly tested the unscaled version but they seem to work as expected.
function STORY_replace_images($sid, $intro, $body)
{
global $_CONF, $_TABLES, $LANG24;
$stdImageLoc = true;
if (!strstr($_CONF['path_images'], $_CONF['path_html'])) {
$stdImageLoc = false;
}
$result = DB_query("SELECT ai_filename FROM {$_TABLES['article_images']} WHERE ai_sid = '$sid' ORDER BY ai_img_num");
$nrows = DB_numRows($result);
$aSearch = Array();
$aReplace = Array();
for ($i = 1; $i <= $nrows; $i++) {
$A = DB_fetchArray($result);
$sizeattributes = COM_getImgSizeAttributes ($_CONF['path_images'] . 'articles/' . $A['ai_filename']);
$lLinkPrefix = '';
$lLinkSuffix = '';
if ($_CONF['keep_unscaled_image'] == 1) {
$lFilename_large = substr_replace ($A['ai_filename'], '_original.',
strrpos ($A['ai_filename'], '.'), 1);
$lFilename_large_complete = $_CONF['path_images'] . 'articles/'
. $lFilename_large;
if ($stdImageLoc) {
$imgpath = substr ($_CONF['path_images'],
strlen ($_CONF['path_html']));
$lFilename_large_URL = $_CONF['site_url'] . '/' . $imgpath
. 'articles/' . $lFilename_large;
} else {
$lFilename_large_URL = $_CONF['site_url']
. '/getimage.php?mode=showâ„‘=' . $lFilename_large;
}
if (file_exists ($lFilename_large_complete)) {
$lLinkPrefix = '<a href="' . $lFilename_large_URL
. '" title="' . $LANG24[57] . '">';
$lLinkSuffix = '</a>';
}
}
if ($stdImageLoc) {
$imgpath = substr ($_CONF['path_images'],
strlen ($_CONF['path_html']));
$imgSrc = $_CONF['site_url'] . '/' . $imgpath . 'articles/'
. $A['ai_filename'];
} else {
$imgSrc = $_CONF['site_url']
. '/getimage.php?mode=articlesâ„‘=' . $A['ai_filename'];
}
$imgSrc = preg_quote($imgSrc);
$sizeattributes = preg_quote($sizeattributes);
$lLinkPrefix = preg_quote($lLinkPrefix);
$lLinkSuffix = preg_quote($lLinkSuffix);
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="">' . $lLinkSuffix . '%';
$aReplace[] = '[image'.$i.']';
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="(.+)">' . $lLinkSuffix . '%';
$aReplace[] = '[image'.$i.':1]';
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'align="(left|right)" src="' . $imgSrc . '" alt="(.*)">' . $lLinkSuffix . '%';
$aReplace[] = '[image'.$i.'_1:2]';
if (($_CONF['allow_user_scaling'] == 1) and ($_CONF['keep_unscaled_image'] == 1)) {
if (file_exists ($lFilename_large_complete)) {
$sizeattributes = preg_quote(COM_getImgSizeAttributes($lFilename_large_complete));
$imgSrc = preg_quote($lFilename_large_URL);
}
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="">' . $lLinkSuffix . '%';
$aReplace[] = '[unscaled'.$i.']';
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="(.+)">' . $lLinkSuffix . '%';
$aReplace[] = '[unscaled'.$i.':1]';
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'align="(left|right)" src="' . $imgSrc . '" alt="(.*)">' . $lLinkSuffix . '%';
$aReplace[] = '[unscaled'.$i.'_1:2]';
}
}
list($intro, $body) = preg_replace($aSearch, $aReplace, Array($intro, $body));
return array($intro, $body);
}
function STORY_insert_images($sid, $intro, $body, $usage='html')
{
global $_CONF, $_TABLES, $LANG24;
$result = DB_query("SELECT ai_filename FROM {$_TABLES['article_images']} WHERE ai_sid = '$sid' ORDER BY ai_img_num");
$nrows = DB_numRows($result);
$errors = array();
$stdImageLoc = true;
if (!strstr($_CONF['path_images'], $_CONF['path_html'])) {
$stdImageLoc = false;
}
$aSearch = Array();
$aReplace = Array();
for ($i = 1; $i <= $nrows; $i++) {
$A = DB_fetchArray($result);
$lLinkPrefix = '';
$lLinkSuffix = '';
if ($_CONF['keep_unscaled_image'] == 1) {
$lFilename_large = substr_replace ($A['ai_filename'], '_original.',
strrpos ($A['ai_filename'], '.'), 1);
$lFilename_large_complete = $_CONF['path_images'] . 'articles/'
. $lFilename_large;
if ($stdImageLoc) {
$imgpath = substr ($_CONF['path_images'],
strlen ($_CONF['path_html']));
$lFilename_large_URL = $_CONF['site_url'] . '/' . $imgpath
. 'articles/' . $lFilename_large;
} else {
$lFilename_large_URL = $_CONF['site_url']
. '/getimage.php?mode=showâ„‘=' . $lFilename_large;
}
if (file_exists ($lFilename_large_complete)) {
$lLinkPrefix = '<a href="' . $lFilename_large_URL
. '" title="' . $LANG24[57] . '">';
$lLinkSuffix = '</a>';
}
}
$sizeattributes = COM_getImgSizeAttributes ($_CONF['path_images'] . 'articles/' . $A['ai_filename']);
$match = '%[(image|unscaled)'.$i.'(_(left|right))?(
[^]]*))?]%';
if (!preg_match($match, $intro) and !preg_match($match, $body)) {
// There is an image that wasn't used, create an error
$errors[] = $LANG24[48] . " #$i, {$A['ai_filename']}, " . $LANG24[53] . "<br>$match";
} else {
if ($usage=='email') { // image will be attached, no path necessary
$imgSrc = $A['ai_filename'];
} elseif ($stdImageLoc) {
$imgpath = substr ($_CONF['path_images'],
strlen ($_CONF['path_html']));
$imgSrc = $_CONF['site_url'] . '/' . $imgpath . 'articles/'
. $A['ai_filename'];
} else {
$imgSrc = $_CONF['site_url'] . '/getimage.php?mode=articlesâ„‘=' . $A['ai_filename'];
}
$aSearch[] = '%[image'.$i.'([^]]*))?]%';
$aReplace[] = $lLinkPrefix . '<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="2">' . $lLinkSuffix;
$aSearch[] = '%[image'.$i.'_(left|right)([^]]*))?]%';
$aReplace[] = $lLinkPrefix . '<img ' . $sizeattributes . 'align="1" src="' . $imgSrc . '" alt="3">' . $lLinkSuffix;
if (($_CONF['allow_user_scaling'] == 1) and ($_CONF['keep_unscaled_image'] == 1)) {
if (file_exists ($lFilename_large_complete)) {
$imgSrc = $lFilename_large_URL;
$sizeattributes = COM_getImgSizeAttributes ($lFilename_large_complete);
}
$aSearch[] = '%[unscaled'.$i.'([^]]*))?]%';
$aReplace[] = $lLinkPrefix . '<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="2">' . $lLinkSuffix;
$aSearch[] = '%[unscaled'.$i.'_(left|right)([^]]*))?]%';
$aReplace[] = $lLinkPrefix . '<img ' . $sizeattributes . 'align="1" src="' . $imgSrc . '" alt="3">' . $lLinkSuffix;
}
}
}
if (count($aSearch) > 0) {
list($intro, $body) = preg_replace($aSearch, $aReplace, Array($intro, $body));
}
return array($errors, $intro, $body);
}
If there mistakes, there are in my copy/paste as this code is working on my installation of 1.4.0sr5_1.
I considered expanding the choices from left and right to include other valid align tags but decided against it. Ambitious folk can replace (left|right) with (left|right|top|middle|bottom|absbottom) etc if they so please in the couple places it occurs in the code above.
Joe
I have not thoroughly tested the unscaled version but they seem to work as expected.
Text Formatted Code
function STORY_replace_images($sid, $intro, $body)
{
global $_CONF, $_TABLES, $LANG24;
$stdImageLoc = true;
if (!strstr($_CONF['path_images'], $_CONF['path_html'])) {
$stdImageLoc = false;
}
$result = DB_query("SELECT ai_filename FROM {$_TABLES['article_images']} WHERE ai_sid = '$sid' ORDER BY ai_img_num");
$nrows = DB_numRows($result);
$aSearch = Array();
$aReplace = Array();
for ($i = 1; $i <= $nrows; $i++) {
$A = DB_fetchArray($result);
$sizeattributes = COM_getImgSizeAttributes ($_CONF['path_images'] . 'articles/' . $A['ai_filename']);
$lLinkPrefix = '';
$lLinkSuffix = '';
if ($_CONF['keep_unscaled_image'] == 1) {
$lFilename_large = substr_replace ($A['ai_filename'], '_original.',
strrpos ($A['ai_filename'], '.'), 1);
$lFilename_large_complete = $_CONF['path_images'] . 'articles/'
. $lFilename_large;
if ($stdImageLoc) {
$imgpath = substr ($_CONF['path_images'],
strlen ($_CONF['path_html']));
$lFilename_large_URL = $_CONF['site_url'] . '/' . $imgpath
. 'articles/' . $lFilename_large;
} else {
$lFilename_large_URL = $_CONF['site_url']
. '/getimage.php?mode=showâ„‘=' . $lFilename_large;
}
if (file_exists ($lFilename_large_complete)) {
$lLinkPrefix = '<a href="' . $lFilename_large_URL
. '" title="' . $LANG24[57] . '">';
$lLinkSuffix = '</a>';
}
}
if ($stdImageLoc) {
$imgpath = substr ($_CONF['path_images'],
strlen ($_CONF['path_html']));
$imgSrc = $_CONF['site_url'] . '/' . $imgpath . 'articles/'
. $A['ai_filename'];
} else {
$imgSrc = $_CONF['site_url']
. '/getimage.php?mode=articlesâ„‘=' . $A['ai_filename'];
}
$imgSrc = preg_quote($imgSrc);
$sizeattributes = preg_quote($sizeattributes);
$lLinkPrefix = preg_quote($lLinkPrefix);
$lLinkSuffix = preg_quote($lLinkSuffix);
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="">' . $lLinkSuffix . '%';
$aReplace[] = '[image'.$i.']';
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="(.+)">' . $lLinkSuffix . '%';
$aReplace[] = '[image'.$i.':1]';
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'align="(left|right)" src="' . $imgSrc . '" alt="(.*)">' . $lLinkSuffix . '%';
$aReplace[] = '[image'.$i.'_1:2]';
if (($_CONF['allow_user_scaling'] == 1) and ($_CONF['keep_unscaled_image'] == 1)) {
if (file_exists ($lFilename_large_complete)) {
$sizeattributes = preg_quote(COM_getImgSizeAttributes($lFilename_large_complete));
$imgSrc = preg_quote($lFilename_large_URL);
}
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="">' . $lLinkSuffix . '%';
$aReplace[] = '[unscaled'.$i.']';
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="(.+)">' . $lLinkSuffix . '%';
$aReplace[] = '[unscaled'.$i.':1]';
$aSearch[] = '%'.$lLinkPrefix.'<img ' . $sizeattributes . 'align="(left|right)" src="' . $imgSrc . '" alt="(.*)">' . $lLinkSuffix . '%';
$aReplace[] = '[unscaled'.$i.'_1:2]';
}
}
list($intro, $body) = preg_replace($aSearch, $aReplace, Array($intro, $body));
return array($intro, $body);
}
function STORY_insert_images($sid, $intro, $body, $usage='html')
{
global $_CONF, $_TABLES, $LANG24;
$result = DB_query("SELECT ai_filename FROM {$_TABLES['article_images']} WHERE ai_sid = '$sid' ORDER BY ai_img_num");
$nrows = DB_numRows($result);
$errors = array();
$stdImageLoc = true;
if (!strstr($_CONF['path_images'], $_CONF['path_html'])) {
$stdImageLoc = false;
}
$aSearch = Array();
$aReplace = Array();
for ($i = 1; $i <= $nrows; $i++) {
$A = DB_fetchArray($result);
$lLinkPrefix = '';
$lLinkSuffix = '';
if ($_CONF['keep_unscaled_image'] == 1) {
$lFilename_large = substr_replace ($A['ai_filename'], '_original.',
strrpos ($A['ai_filename'], '.'), 1);
$lFilename_large_complete = $_CONF['path_images'] . 'articles/'
. $lFilename_large;
if ($stdImageLoc) {
$imgpath = substr ($_CONF['path_images'],
strlen ($_CONF['path_html']));
$lFilename_large_URL = $_CONF['site_url'] . '/' . $imgpath
. 'articles/' . $lFilename_large;
} else {
$lFilename_large_URL = $_CONF['site_url']
. '/getimage.php?mode=showâ„‘=' . $lFilename_large;
}
if (file_exists ($lFilename_large_complete)) {
$lLinkPrefix = '<a href="' . $lFilename_large_URL
. '" title="' . $LANG24[57] . '">';
$lLinkSuffix = '</a>';
}
}
$sizeattributes = COM_getImgSizeAttributes ($_CONF['path_images'] . 'articles/' . $A['ai_filename']);
$match = '%[(image|unscaled)'.$i.'(_(left|right))?(
[^]]*))?]%';if (!preg_match($match, $intro) and !preg_match($match, $body)) {
// There is an image that wasn't used, create an error
$errors[] = $LANG24[48] . " #$i, {$A['ai_filename']}, " . $LANG24[53] . "<br>$match";
} else {
if ($usage=='email') { // image will be attached, no path necessary
$imgSrc = $A['ai_filename'];
} elseif ($stdImageLoc) {
$imgpath = substr ($_CONF['path_images'],
strlen ($_CONF['path_html']));
$imgSrc = $_CONF['site_url'] . '/' . $imgpath . 'articles/'
. $A['ai_filename'];
} else {
$imgSrc = $_CONF['site_url'] . '/getimage.php?mode=articlesâ„‘=' . $A['ai_filename'];
}
$aSearch[] = '%[image'.$i.'(
[^]]*))?]%'; $aReplace[] = $lLinkPrefix . '<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="2">' . $lLinkSuffix;
$aSearch[] = '%[image'.$i.'_(left|right)(
[^]]*))?]%'; $aReplace[] = $lLinkPrefix . '<img ' . $sizeattributes . 'align="1" src="' . $imgSrc . '" alt="3">' . $lLinkSuffix;
if (($_CONF['allow_user_scaling'] == 1) and ($_CONF['keep_unscaled_image'] == 1)) {
if (file_exists ($lFilename_large_complete)) {
$imgSrc = $lFilename_large_URL;
$sizeattributes = COM_getImgSizeAttributes ($lFilename_large_complete);
}
$aSearch[] = '%[unscaled'.$i.'(
[^]]*))?]%'; $aReplace[] = $lLinkPrefix . '<img ' . $sizeattributes . 'src="' . $imgSrc . '" alt="2">' . $lLinkSuffix;
$aSearch[] = '%[unscaled'.$i.'_(left|right)(
[^]]*))?]%'; $aReplace[] = $lLinkPrefix . '<img ' . $sizeattributes . 'align="1" src="' . $imgSrc . '" alt="3">' . $lLinkSuffix;
}
}
}
if (count($aSearch) > 0) {
list($intro, $body) = preg_replace($aSearch, $aReplace, Array($intro, $body));
}
return array($errors, $intro, $body);
}
If there mistakes, there are in my copy/paste as this code is working on my installation of 1.4.0sr5_1.
I considered expanding the choices from left and right to include other valid align tags but decided against it. Ambitious folk can replace (left|right) with (left|right|top|middle|bottom|absbottom) etc if they so please in the couple places it occurs in the code above.
Joe
15
18
Quote
Status: offline
jmucchiello
Forum User
Full Member
Registered: 08/29/05
Posts: 985
I guess smiley replacement code doesn't respect the CODE tag. 
Any chance this can make it into 1.4.2? Now that I have alt text in my database, I don't want to have to merge the code every release.
Any chance this can make it into 1.4.2? Now that I have alt text in my database, I don't want to have to merge the code every release.
14
15
Quote
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