X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=template.php;h=697761e2962233e0f080332ceab7366744d3ee6d;hb=bc74a59133a373649ab410c4cdd35a2661f1ee4b;hp=56435021891b9c745375c4183fbe6141ac6bd2bc;hpb=5d04ed2e47615f332c32d11659400b12c59acf21;p=wfpl.git

diff --git a/template.php b/template.php
index 5643502..697761e 100644
--- a/template.php
+++ b/template.php
@@ -300,46 +300,52 @@ function merge_templates(&$main, &$tem) {
 function tem_auto_sep(&$value, $key, $context) {
 	$rows =& $context['parent']['parent'];
 	if($rows['cur'] != count($rows['rows'])-1)  # last row?
-		return $value = true;  # show once
+		return true;  # show once
 }
 
 # auto-show once, only when this is the first row of the parent
 function tem_auto_last(&$value, $key, $context) {
 	$rows =& $context['parent']['parent'];
 	if($rows['cur'] == count($rows['rows'])-1)  # last row?
-		return $value = true;  # show once
+		return true;  # show once
 }
 
 # auto-show once, only when this is the last row of the parent
 function tem_auto_first(&$value, $key, $context) {
 	$rows =& $context['parent']['parent'];
 	if($rows['cur'] == 0)  # first row?
-		return $value = true;  # show once
+		return true;  # show once
 }
 
 # 'show' sections will be shown unless the corresponding data
 # value === false
 function tem_auto_show(&$value) {
-	if($value === null) $value = array(array());
+	if($value === null) return true;
 	return $value;
 }
 
+# 'empty' sections will be shown only if the corresponding data value is the
+# empty string
+function tem_auto_empty(&$value) {
+	if($value === '') return true;
+	return null;
+}
+
 # 'nonempty' sections will not be shown if the corresponding data
 # value is the empty string
 function tem_auto_nonempty(&$value) {
-	if($value === '') $value = null;
+	if($value === '') return null;
 	return $value;
 }
 
-# 'not' sections will not be shown if the corresponding data
+# 'unset' sections will not be shown if the corresponding data
 # value is not set (opposite of default)
 function tem_auto_unset(&$value) {
 	if($value === null) {
-		$value = '';
+		return '';
 	} else {
-		$value = null;
+		return null;
 	}
-	return $value;
 }
 
 # 'evenodd' sections are given an 'evenodd' attribute whose value
@@ -353,6 +359,27 @@ function tem_auto_evenodd(&$values) {
 	return $values;
 }
 
+# 'once' sections are shown exactly once if the value is set (and not at all
+# otherwise.) This is useful when an array value would otherwise cause the
+# section to be displayed multiple times.
+function tem_auto_once(&$value) {
+	if($value === null) return null;
+	return true;
+}
+
+function tem_auto_once_if(&$value) {
+	if($value) return true;
+	return null;
+}
+
+# 'once' sections are shown exactly once if php evaluates the value to false
+# (and not at all otherwise.) This is useful when an array value would
+# otherwise cause the section to be displayed multiple times.
+function tem_auto_once_else(&$value) {
+	if($value) return null;
+	return true;;
+}
+