From af704c0a1cd5d1ad1317eb368e9c46bfa24dc8d0 Mon Sep 17 00:00:00 2001
From: =?utf8?q?C=C3=A9sar=20D=2E=20Rodas?= <crodas@php.net>
Date: Wed, 11 Aug 2010 02:00:56 -0400
Subject: [PATCH] - Added try_include tag; which behaves as `include` tag, 
 except that the file to include may not exist.

---
 lib/Haanga.php                                 | 11 +++++++++++
 lib/Haanga/Extension/Tag/Tryinclude.php        | 19 +++++++++++++++++++
 tests/assert_templates/try_include.html        |  3 +++
 tests/assert_templates/try_include.tpl         |  2 ++
 tests/err_templates/err_invalid_tryinclude.tpl |  1 +
 tests/tmp/assert_templates/try_include.tpl.php | 17 +++++++++++++++++
 6 files changed, 53 insertions(+)
 create mode 100644 lib/Haanga/Extension/Tag/Tryinclude.php
 create mode 100644 tests/assert_templates/try_include.html
 create mode 100644 tests/assert_templates/try_include.tpl
 create mode 100644 tests/err_templates/err_invalid_tryinclude.tpl
 create mode 100644 tests/tmp/assert_templates/try_include.tpl.php

diff --git a/lib/Haanga.php b/lib/Haanga.php
index 3b25f3b..f3eb3aa 100644
--- a/lib/Haanga.php
+++ b/lib/Haanga.php
@@ -186,6 +186,17 @@ class Haanga
     }
     // }}}
 
+    // safe_load(string $file, array $vars, bool $return, array $blocks) {{{
+    public static function Safe_Load($file, $vars = array(), $return=FALSE, $blocks=array())
+    {
+        try {
+            return self::Load($file, $vars, $return, $blocks);
+        } Catch (Exception $e) {
+            return "";
+        }
+    }
+    // }}}
+
     // load(string $file, array $vars, bool $return, array $blocks) {{{
     /**
      *  Load
diff --git a/lib/Haanga/Extension/Tag/Tryinclude.php b/lib/Haanga/Extension/Tag/Tryinclude.php
new file mode 100644
index 0000000..be3852b
--- /dev/null
+++ b/lib/Haanga/Extension/Tag/Tryinclude.php
@@ -0,0 +1,19 @@
+<?php
+
+class Haanga_Extension_Tag_Tryinclude
+{
+    static function generator($cmp, $args, $declared)
+    {
+        if ($declared) {
+            throw new Haanga_Compiler_Exception("try_include can't be redirected to a variable");
+        }
+
+        $code = hcode();
+        $exec = hexec('Haanga::Safe_Load', $args[0], hvar('vars'), TRUE, array());
+
+        $cmp->do_print($code, $exec);
+
+        return $code;
+
+    }
+}
diff --git a/tests/assert_templates/try_include.html b/tests/assert_templates/try_include.html
new file mode 100644
index 0000000..523a059
--- /dev/null
+++ b/tests/assert_templates/try_include.html
@@ -0,0 +1,3 @@
+
+Partial part
+
diff --git a/tests/assert_templates/try_include.tpl b/tests/assert_templates/try_include.tpl
new file mode 100644
index 0000000..6352d72
--- /dev/null
+++ b/tests/assert_templates/try_include.tpl
@@ -0,0 +1,2 @@
+{% try_include "foobar-tpl.tpl" %}
+{% try_include "assert_templates/partial.tpl" %}
diff --git a/tests/err_templates/err_invalid_tryinclude.tpl b/tests/err_templates/err_invalid_tryinclude.tpl
new file mode 100644
index 0000000..0b2cf0f
--- /dev/null
+++ b/tests/err_templates/err_invalid_tryinclude.tpl
@@ -0,0 +1 @@
+{% try_include "foobar.tpl" as foo %}
diff --git a/tests/tmp/assert_templates/try_include.tpl.php b/tests/tmp/assert_templates/try_include.tpl.php
new file mode 100644
index 0000000..872748b
--- /dev/null
+++ b/tests/tmp/assert_templates/try_include.tpl.php
@@ -0,0 +1,17 @@
+<?php
+$HAANGA_VERSION  = '1.1.3';
+/* Generated from /home/crodas/projects/playground/haanga/tests/assert_templates/try_include.tpl */
+function haanga_2918f6e9aedbd5d32e8a5d091ed1985fcf7008e3($vars, $return=FALSE, $blocks=array())
+{
+    global $test_global;
+    extract($vars);
+    if ($return == TRUE) {
+        ob_start();
+    }
+    echo Haanga::Safe_Load('foobar-tpl.tpl', $vars, TRUE, Array()).'
+'.Haanga::Safe_Load('assert_templates/partial.tpl', $vars, TRUE, Array()).'
+';
+    if ($return == TRUE) {
+        return ob_get_clean();
+    }
+}
\ No newline at end of file
-- 
2.11.4.GIT