From a1e80675292e76596f20ba4abda4e8b118ceef38 Mon Sep 17 00:00:00 2001
From: Zordius Chen <zordius@yahoo-inc.com>
Date: Mon, 30 Jun 2014 17:01:38 +0800
Subject: [PATCH] handle true and false for custom helper named arguments

---
 src/lightncandy.php       | 10 ++++++++++
 tests/LightnCandyTest.php |  6 ++++++
 tests/example_helpers.php | 15 +++++++++++++--
 3 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/src/lightncandy.php b/src/lightncandy.php
index c31d1ca3..84e6b6a0 100644
--- a/src/lightncandy.php
+++ b/src/lightncandy.php
@@ -749,6 +749,8 @@ protected static function getVariableNames($vn, $context) {
      * @return array variable names
      *
      * @expect Array('$in', 'this') when input Array(null), Array('flags'=>Array('spvar'=>true,'debug'=>0))
+     * @expect Array('true', 'true') when input Array('true'), Array('flags'=>Array('spvar'=>true,'debug'=>0))
+     * @expect Array('false', 'false') when input Array('false'), Array('flags'=>Array('spvar'=>true,'debug'=>0))
      * @expect Array('((is_array($in) && isset($in[\'@index\'])) ? $in[\'@index\'] : null)', '[@index]') when input Array('@index'), Array('flags'=>Array('spvar'=>false,'debug'=>0))
      * @expect Array('$cx[\'sp_vars\'][\'index\']', '@index') when input Array('@index'), Array('flags'=>Array('spvar'=>true,'debug'=>0))
      * @expect Array('$cx[\'sp_vars\'][\'key\']', '@key') when input Array('@key'), Array('flags'=>Array('spvar'=>true,'debug'=>0))
@@ -774,6 +776,14 @@ protected static function getVariableName($var, &$context) {
             }
         }
 
+        // Handle language constants
+        switch ($var[0]) {
+        case 'true':
+            return Array('true', 'true');
+        case 'false':
+            return Array('false', 'false');
+        }
+
         // Handle double quoted string
         if (preg_match('/^"(.*)"$/', $var[0], $matched)) {
             return Array("'{$matched[1]}'", $var[0]);
diff --git a/tests/LightnCandyTest.php b/tests/LightnCandyTest.php
index f255a45f..27aabb43 100644
--- a/tests/LightnCandyTest.php
+++ b/tests/LightnCandyTest.php
@@ -229,6 +229,12 @@ public function testOn_getVariableName() {
         $this->assertEquals(Array('$in', 'this'), $method->invoke(null,
             Array(null), Array('flags'=>Array('spvar'=>true,'debug'=>0))
         ));
+        $this->assertEquals(Array('true', 'true'), $method->invoke(null,
+            Array('true'), Array('flags'=>Array('spvar'=>true,'debug'=>0))
+        ));
+        $this->assertEquals(Array('false', 'false'), $method->invoke(null,
+            Array('false'), Array('flags'=>Array('spvar'=>true,'debug'=>0))
+        ));
         $this->assertEquals(Array('((is_array($in) && isset($in[\'@index\'])) ? $in[\'@index\'] : null)', '[@index]'), $method->invoke(null,
             Array('@index'), Array('flags'=>Array('spvar'=>false,'debug'=>0))
         ));
diff --git a/tests/example_helpers.php b/tests/example_helpers.php
index 77b211bc..f5e67d6f 100755
--- a/tests/example_helpers.php
+++ b/tests/example_helpers.php
@@ -11,8 +11,8 @@ function helper1 ($args, $named) {
 // Custom Helper Interface ... named arguments
 // Template: {{helper1 url=article.url text=article.text [ur"l]=article.extra}}
 function helper2 ($args, $named) {
-    $u = isset($named['url']) ? $named['url'] : 'undefined';
-    $t = isset($named['text']) ? $named['text'] : 'undefined';
+    $u = isset($named['url']) ? jsraw($named['url']) : 'undefined';
+    $t = isset($named['text']) ? jsraw($named['text']) : 'undefined';
     $x = isset($named['ur"l']) ? $named['ur"l'] : 'undefined';
     return "<a href=\"{$u}\">{$t}</a>({$x})";
 }
@@ -44,4 +44,15 @@ function myeach ($list, $options) {
     return $ret;
 }
 
+// Simulate Javascript toString() behaviors
+function jsraw ($i) {
+    if ($i === true) {
+        return 'true';
+    }
+    if ($i === false) {
+        return 'false';
+    }
+    return $i;
+}
+
 ?>