- Setup: check php version (5.4 required)

- Comanche: implement conditionals. Currently the only supported tests are true/false for system config settings
and supports the following forms:

[if $config.system.foo]
[widget=widget1][/widget]
[else]
[widget=widget2][/widget]
[/if]

[if $config.system.foo]
[widget=widget1][/widget]
[/if]

Zotlabs/Module/Setup.php

@@ -407,6 +407,11 @@ class Setup extends \Zotlabs\Web\Controller {
 	function check_php(&$phpath, &$checks) {
 		$help = '';
 	
+		if(version_compare(PHP_VERSION, '5.4') < 0) {
+			$help .= t('PHP version 5.4 or greater is required.');
+			$this->check_add($checks, t('PHP version'), false, false, $help);
+		}
+
 		if (strlen($phpath)) {
 			$passed = file_exists($phpath);
 		} else {

include/comanche.php

@@ -53,6 +53,31 @@ function comanche_parser(&$a, $s, $pass = 0) {
 		}
 	}
 
+	$cnt = preg_match_all("/\[if (.*?)\](.*?)\[else\](.*?)\[\/if\]/ism", $s, $matches, PREG_SET_ORDER);
+	if($cnt) {
+		foreach($matches as $mtch) {
+			if(comanche_test_condition($mtch[1])) {
+				$s = str_replace($mtch[0], $mtch[2], $s);
+			}
+			else {
+				$s = str_replace($mtch[0], $mtch[3], $s);
+			}
+		}
+	}
+	else {
+		$cnt = preg_match_all("/\[if (.*?)\](.*?)\[\/if\]/ism", $s, $matches, PREG_SET_ORDER);
+		if($cnt) {
+			foreach($matches as $mtch) {
+				if(comanche_test_condition($mtch[1])) {
+					$s = str_replace($mtch[0], $mtch[2], $s);
+				}
+				else {
+					$s = str_replace($mtch[0], '', $s);
+				}
+			}
+		}
+	}
+
 	if($pass == 0) {
 		$cnt = preg_match("/\[layout\](.*?)\[\/layout\]/ism", $s, $matches);
 		if($cnt)
@@ -86,7 +111,6 @@ function comanche_parser(&$a, $s, $pass = 0) {
 				App::$layout['webpage'] = comanche_webpage($a,$mtch[1]);
 			}
 		}
-
 	}
 	else {
 		$cnt = preg_match_all("/\[region=(.*?)\](.*?)\[\/region\]/ism", $s, $matches, PREG_SET_ORDER);
@@ -100,6 +124,17 @@ function comanche_parser(&$a, $s, $pass = 0) {
 
 }
 
+function comanche_test_condition($s) {
+
+	if(preg_match("/[\$]config[\.](.*?)/",$s,$matches)) {
+		$x = explode('.',$s);
+		if(get_config($x[1],$x[2]))
+			return true;
+	}
+	return false;
+
+}
+
 
 function comanche_menu($s, $class = '') {