function CondExpr($pagename, $condname, $condparm) {
global $CondExprOps;
SDV($CondExprOps, 'and|x?or|&&|\\|\\||[!()]');
if ($condname == '(' || $condname == '[')
$condparm = preg_replace('/[\\]\\)]\\s*$/', '', $condparm);
$condparm = str_replace('&&', '&&', $condparm);
$terms = preg_split("/(?<!\\S)($CondExprOps)(?!\\S)/i", $condparm, -1,
PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
foreach($terms as $i => $t) {
$t = trim($t);
if (preg_match("/^($CondExprOps)$/i", $t)) continue;
if ($t) $terms[$i] = CondText($pagename, "if $t", 'TRUE') ? '1' : '0';
}
return @eval('return(' . implode(' ', $terms) . ');');
}
function PmFormTemplateRequires($pagename, &$text, $args = NULL)
{
if (!$args) {
$args = array();
}
$errors = array();
if (!PmFormTemplateDirective($text, "requires?", $match)) {
return;
}
foreach ($match as $m) {
$text = str_replace($m[0], '', $text);
if ($args) {
$m[2] = FmtTemplateVars($m[2], $args);
}
$opt = ParseArgs($m[2]);
$opt[''] = (array) $opt[''];
$name = isset($opt['name']) ? $opt['name'] : array_shift($opt['']);
$match = '?*';
if (isset($opt['match'])) {
$match = $opt['match'];
} else {
if ($opt['']) {
$match = array_shift($opt['']);
}
}
list($inclp, $exclp) = GlobToPCRE($match);
foreach (preg_split('/[\\s,]+/', $name, -1, PREG_SPLIT_NO_EMPTY) as $n) {
$n = preg_replace('/^\\$:/', 'ptv_', $n);
if ($match == '' && $args[$n] != '' || $inclp && !preg_match("/{$inclp}/is", $args[$n]) || $exclp && preg_match("/{$exclp}/is", $args[$n])) {
$errors[] = isset($opt['errmsg']) ? $opt['errmsg'] : "\$[Invalid parameter] {$n}";
}
}
if (@$opt['if'] && !CondText($pagename, 'if ' . $opt['if'], 'hello')) {
$errors[] = isset($opt['errmsg']) ? $opt['errmsg'] : "\$[Required condition failed]";
}
}
return $errors;
}
