/**
* Runs the needed checks to see if the value is valid. A non
* true value will be returned if it failed.
*
* @param mixed $value
* @return bool|string
*/
public function validate($value)
{
$valueLen = is_array($value) ? count($value) : zula_strlen($value);
if ($valueLen < $this->min || $this->max && $valueLen > $this->max) {
return sprintf(t('%%1$s must be between %1$s and %2$s characters long', I18n::_DTD), number_format($this->min), number_format($this->max));
} else {
return true;
}
}
/**
* Helper function for emphasis
*
* @param string $text
* @return string
* @author MediaWiki Project
*/
public function doQuotes($text)
{
$arr = preg_split("/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
if (count($arr) == 1) {
return $text;
} else {
# First, do some preliminary work. This may shift some apostrophes from
# being mark-up to being text. It also counts the number of occurrences
# of bold and italics mark-ups.
$i = 0;
$numbold = 0;
$numitalics = 0;
foreach ($arr as $r) {
if ($i % 2 == 1) {
# If there are ever four apostrophes, assume the first is supposed to
# be text, and the remaining three constitute mark-up for bold text.
if (zula_strlen($arr[$i]) == 4) {
$arr[$i - 1] .= "'";
$arr[$i] = "'''";
} else {
if (zula_strlen($arr[$i]) > 5) {
$arr[$i - 1] .= str_repeat("'", zula_strlen($arr[$i]) - 5);
$arr[$i] = "'''''";
}
}
# Count the number of occurrences of bold and italics mark-ups.
# We are not counting sequences of five apostrophes.
if (zula_strlen($arr[$i]) == 2) {
$numitalics++;
} else {
if (zula_strlen($arr[$i]) == 3) {
$numbold++;
} else {
if (zula_strlen($arr[$i]) == 5) {
$numitalics++;
$numbold++;
}
}
}
}
$i++;
}
# If there is an odd number of both bold and italics, it is likely
# that one of the bold ones was meant to be an apostrophe followed
# by italics. Which one we cannot know for certain, but it is more
# likely to be one that has a single-letter word before it.
if ($numbold % 2 == 1 && $numitalics % 2 == 1) {
$i = 0;
$firstsingleletterword = -1;
$firstmultiletterword = -1;
$firstspace = -1;
foreach ($arr as $r) {
if ($i % 2 == 1 and zula_strlen($r) == 3) {
$x1 = zula_substr($arr[$i - 1], -1);
$x2 = zula_substr($arr[$i - 1], -2, 1);
if ($x1 == ' ') {
if ($firstspace == -1) {
$firstspace = $i;
}
} else {
if ($x2 == ' ') {
if ($firstsingleletterword == -1) {
$firstsingleletterword = $i;
}
} else {
if ($firstmultiletterword == -1) {
$firstmultiletterword = $i;
}
}
}
}
$i++;
}
# If there is a single-letter word, use it!
if ($firstsingleletterword > -1) {
$arr[$firstsingleletterword] = "''";
$arr[$firstsingleletterword - 1] .= "'";
} else {
if ($firstmultiletterword > -1) {
$arr[$firstmultiletterword] = "''";
$arr[$firstmultiletterword - 1] .= "'";
} else {
if ($firstspace > -1) {
$arr[$firstspace] = "''";
$arr[$firstspace - 1] .= "'";
}
}
}
}
# Now let's actually convert our apostrophic mush to HTML!
$output = '';
$buffer = '';
$state = '';
$i = 0;
foreach ($arr as $r) {
if ($i % 2 == 0) {
if ($state == 'both') {
$buffer .= $r;
} else {
$output .= $r;
}
} else {
if (zula_strlen($r) == 2) {
if ($state == 'i') {
$output .= '</em>';
$state = '';
} else {
if ($state == 'bi') {
$output .= '</em>';
$state = 'b';
} else {
if ($state == 'ib') {
$output .= '</strong></em><strong>';
$state = 'b';
} else {
if ($state == 'both') {
$output .= '<strong><em>' . $buffer . '</em>';
$state = 'b';
} else {
$output .= '<em>';
$state .= 'i';
}
}
}
}
} else {
if (zula_strlen($r) == 3) {
if ($state == 'b') {
$output .= '</strong>';
$state = '';
} else {
if ($state == 'bi') {
$output .= '</em></strong><em>';
$state = 'i';
} else {
if ($state == 'ib') {
$output .= '</strong>';
$state = 'i';
} else {
if ($state == 'both') {
$output .= '<em><strong>' . $buffer . '</strong>';
$state = 'i';
} else {
$output .= '<strong>';
$state .= 'b';
}
}
}
}
} else {
if (zula_strlen($r) == 5) {
if ($state == 'b') {
$output .= '</strong><em>';
$state = 'i';
} else {
if ($state == 'i') {
$output .= '</em><strong>';
$state = 'b';
} else {
if ($state == 'bi') {
$output .= '</em></strong>';
$state = '';
} else {
if ($state == 'ib') {
$output .= '</strong></em>';
$state = '';
} else {
if ($state == 'both') {
$output .= '<em><strong>' . $buffer . '</strong></em>';
$state = '';
} else {
$buffer = '';
$state = 'both';
}
}
}
}
}
}
}
}
}
$i++;
}
# Now close all remaining tags. Notice that the order is important.
if ($state == 'b' || $state == 'ib') {
$output .= '</strong>';
}
if ($state == 'i' || $state == 'bi' || $state == 'ib') {
$output .= '</em>';
}
if ($state == 'bi') {
$output .= '</strong>';
}
# There might be lonely ''''', so make sure we have a buffer
if ($state == 'both' && $buffer) {
$output .= '<strong><em>' . $buffer . '</em></strong>';
}
return $output;
}
}
/**
* Takes a string and creates a short zula_snippet/summary from it
*
* @param string $summary
* @param int $charLimit
* @param bool $ellipsis Should ellipsis (...) be added to the end?
* @return string
*/
function zula_snippet($summary, $charLimit = 400, $ellipsis = false)
{
$summary = str_replace(array("\n", "\r"), ' ', $summary);
$charLimit = abs($charLimit);
if (!$charLimit || zula_strlen($summary) < $charLimit) {
return $summary;
} else {
$str = trim(zula_substr($summary, 0, $charLimit));
return $str . ($ellipsis ? '…' : '');
}
}
