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unnamed arguments with custom function

 
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wkpark
Smarty n00b


Joined: 02 Jun 2009
Posts: 1

PostPosted: Tue Jun 02, 2009 2:03 am    Post subject: unnamed arguments with custom function Reply with quote

how about to support unnamed arguments, like as

{hello "Hello" "World"}

or

{err "ERROR" `$code`}

etc.

this is a simple patch to support it.

Code:

--- a/Smarty_Compiler.class.php   2009-06-02 09:59:38.000000000 +0900
+++ b/Smarty_Compiler.class.php     2009-06-02 10:28:49.000000000 +0900
@@ -1540,16 +1566,6 @@

         foreach ($tokens as $token) {
             switch ($state) {
-                case 0:
-                    /* If the token is a valid identifier, we set attribute name
-                       and go to state 1. */
-                    if (preg_match('~^\w+$~', $token)) {
-                        $attr_name = $token;
-                        $state = 1;
-                    } else
-                        $this->_syntax_error("invalid attribute name: '$token'", E_USER_ERROR, __FILE__, __LINE__);
-                    break;
-
                 case 1:
                     /* If the token is '=', then we go to state 2. */
                     if ($token == '=') {
@@ -1557,7 +1573,17 @@
                     } else
                         $this->_syntax_error("expecting '=' after attribute name '$last_token'", E_USER_ERROR, __FILE__, __LINE__);
                     break;
-
+                case 0:
+                    /* If the token is a valid identifier, we set attribute name
+                       and go to state 1. */
+                    if (preg_match('~^\w+$~', $token)) {
+                        $attr_name = $token;
+                        $state = 1;
+                        break;
+                    } else { // unnamed args. continue
+                        $attr_name = '';
+                        $state = 2;
+                    }
                 case 2:
                     /* If token is not '=', we set the attribute value and go to
                        state 0. */
@@ -1577,7 +1603,11 @@
                             $token = '"'.addslashes($token).'"';
                         }

-                        $attrs[$attr_name] = $token;
+                        if ($attr_name) {
+                                $attrs[$attr_name] = $token;
+                        } else {
+                                $attrs[] = $token;
+                        }
                         $state = 0;
                     } else
                         $this->_syntax_error("'=' cannot be an attribute value", E_USER_ERROR, __FILE__, __LINE__);

-----
unnamed args are simple and intuitively for human (not for xml/xhtml)

with this support you can use user defined fuctions more intuitively like as

{math "2+4*12"}, {sort "a" "b" "c" "d"} and more

-----
See also:
* osdir dot com / ml / php dot smarty dot devel /2003-12/msg00050.html
* osdir dot com / ml / php dot smarty dot devel /2003-12/msg00052.html


Last edited by wkpark on Tue Jun 02, 2009 5:07 am; edited 1 time in total
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Tae-young
Smarty n00b


Joined: 02 Jun 2009
Posts: 1

PostPosted: Tue Jun 02, 2009 3:53 am    Post subject: Reply with quote

This patch will make it easier to make some wrapper function like gettext _().

instead of using _("") in php code, we can use {_ "Some message"} in smarty with some _() wrapper plugin.
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