Smarty

[Doublehead]

[messju]

[messju]

Here is a version that should work with php-5.0.0b3 and cvs-HEAD (but also with php-4 down to 4.0.6). Feedback and suggestions are welcome :)

[php:1:9cfd031f87]<?php

/* create code for a function call */
function smarty_compiler_fun($tag_args, &$compiler) {
$_attrs = $compiler->_parse_attrs($tag_args);

if (!isset($_attrs['name'])) $compiler->_syntax_error("fun: missing name parameter");
$_func_name = $compiler->_dequote($_attrs['name']);
$_func = 'smarty_fun_'.$_func_name;
$_params = 'array(';
$_sep = '';
unset($_attrs['name']);
foreach ($_attrs as $_key=>$_value) {
$_params .= "$_sep'$_key'=>$_value";
$_sep = ',';
}
$_params .= ')';
return "$_func(\$this, $_params); ";

}
$this->register_compiler_function('fun', 'smarty_compiler_fun');


/* create code for a function declaration */
function smarty_compiler_defun($tag_args, &$compiler) {
$attrs = $compiler->_parse_attrs($tag_args);
$func_key = '"' . md5('php-5') . '[[' . md5(uniqid('sucks')) . '";';
array_push($compiler->_tag_stack, array('defun', $attrs, $tag_args, $func_key));
if (!isset($attrs['name'])) $compiler->_syntax_error("defun: missing name parameter");

$func_name = $compiler->_dequote($attrs['name']);
$func = 'smarty_fun_'.$func_name;
return $func_key . "if (!function_exists('$func')) { function $func(&\$this, \$params) { \$_fun_tpl_vars = \$this->_tpl_vars; \$this->assign(\$params); ";

}


/* create code for closing a function definition and calling said function */
function smarty_compiler_defun_close($tag_args, &$compiler) {
list($name, $attrs, $open_tag_args, $func_key) = array_pop($compiler->_tag_stack);
if ($name!='defun') $compiler->_syntax_error("unexpected {/defun}");
return " \$this->_tpl_vars = \$_fun_tpl_vars; }} " . $func_key . smarty_compiler_fun($open_tag_args, $compiler);
}
$this->register_compiler_function('/defun', 'smarty_compiler_defun_close');


/* callback: replace all $this with $smarty */
function smarty_replace_fun($match) {
$tokens = token_get_all('<?php ' . $match[2]);
array_shift($tokens);
for ($i=0, $count=count($tokens); $i<$count; $i++) {
if (is_array($tokens[$i])) {
if ($tokens[$i][0] == T_VARIABLE && $tokens[$i][1] == '$this') {
$tokens[$i] = '$smarty';
} else {
$tokens[$i] = $tokens[$i][1];
}
}
}
return implode('', $tokens);
}


/* postfilter to squeeze the code to make php5 happy */
function smarty_postfilter_defun($source, &$compiler) {
$search = '("' . md5('php-5') . '\[\[[0-9a-f]{32}";)';
if ((double)phpversion()>=5.0) {
/* filter sourcecode. look for func_keys and replace all $this
in-between with $smarty */
while (1) {
$new_source = preg_replace_callback('/' . $search . '(.*)\\1/Us', 'smarty_replace_fun', $source);
if (strcmp($new_source, $source)==0) break;
$source = $new_source;
}
} else {
/* remove func_keys */
$source = preg_replace('/' . $search . '/', '', $source);
}
return $source;
}
$this->register_postfilter('smarty_postfilter_defun');


?>
[/php:1:9cfd031f87]

[boots]

If anyone cut-and-pasted the code from messju's last post and was having troubles it is likely due to smiley's that the forum put in in the end of the $search regex expression in smarty_postfilter_defun(). I turned smiley's off for that post so cut-and-pasting should work now.

The code appears to work fine (tested on 5RC1 and 4.3.4).

As always, thanks messju and great work!

[appel]

I'm using the defun plugin and I was wondering about one thing.

I have a array of pages, and some pages contain array of pages, childrens.

Now, I have a select box, dropdown, where I list all my pages recursively, but they all come in one list without any nesting.

[boots]

I typically track depth (as a parameter the fun) and then based on depth, add an appropriate amount of whitespace. Don't forget to pass the depth on to your fun call and to have an appropriate way for the function to exit.

eg (note, I use the name "macro" instead of "fun"):

[kills]

I have to paste the plugin-functions into 3 files?

Is this correct?

compiler.fun.php
[php:1:d5a4e8cf42]
<?php

/* create code for a function call */
function smarty_compiler_fun($tag_args, &$compiler) {
$_attrs = $compiler->_parse_attrs($tag_args);

if (!isset($_attrs['name'])) $compiler->_syntax_error("fun: missing name parameter");
$_func_name = $compiler->_dequote($_attrs['name']);
$_func = 'smarty_fun_'.$_func_name;
$_params = 'array(';
$_sep = '';
unset($_attrs['name']);
foreach ($_attrs as $_key=>$_value) {
$_params .= "$_sep'$_key'=>$_value";
$_sep = ',';
}
$_params .= ')';
return "$_func(\$this, $_params); ";

}
$this->register_compiler_function('fun', 'smarty_compiler_fun');


/* create code for a function declaration */
function smarty_compiler_defun($tag_args, &$compiler) {
$attrs = $compiler->_parse_attrs($tag_args);
$func_key = '"' . md5('php-5') . '[[' . md5(uniqid('sucks')) . '";';
array_push($compiler->_tag_stack, array('defun', $attrs, $tag_args, $func_key));
if (!isset($attrs['name'])) $compiler->_syntax_error("defun: missing name parameter");

$func_name = $compiler->_dequote($attrs['name']);
$func = 'smarty_fun_'.$func_name;
return $func_key . "if (!function_exists('$func')) { function $func(&\$this, \$params) { \$_fun_tpl_vars = \$this->_tpl_vars; \$this->assign(\$params); ";

}


/* create code for closing a function definition and calling said function */
function smarty_compiler_defun_close($tag_args, &$compiler) {
list($name, $attrs, $open_tag_args, $func_key) = array_pop($compiler->_tag_stack);
if ($name!='defun') $compiler->_syntax_error("unexpected {/defun}");
return " \$this->_tpl_vars = \$_fun_tpl_vars; }} " . $func_key . smarty_compiler_fun($open_tag_args, $compiler);
}
$this->register_compiler_function('/defun', 'smarty_compiler_defun_close');
[/php:1:d5a4e8cf42]

replace.fun.php
[php:1:d5a4e8cf42]
/* callback: replace all $this with $smarty */
function smarty_replace_fun($match) {
$tokens = token_get_all('<?php ' . $match[2]);
array_shift($tokens);
for ($i=0, $count=count($tokens); $i<$count; $i++) {
if (is_array($tokens[$i])) {
if ($tokens[$i][0] == T_VARIABLE && $tokens[$i][1] == '$this') {
$tokens[$i] = '$smarty';
} else {
$tokens[$i] = $tokens[$i][1];
}
}
}
return implode('', $tokens);
}
[/php:1:d5a4e8cf42]

postfiler.defun.php
[php:1:d5a4e8cf42]
/* postfilter to squeeze the code to make php5 happy */
function smarty_postfilter_defun($source, &$compiler) {
$search = '("' . md5('php-5') . '\[\[[0-9a-f]{32}";)';
if ((double)phpversion()>=5.0) {
/* filter sourcecode. look for func_keys and replace all $this
in-between with $smarty */
while (1) {
$new_source = preg_replace_callback('/' . $search . '(.*)\\1/Us', 'smarty_replace_fun', $source);
if (strcmp($new_source, $source)==0) break;
$source = $new_source;
}
} else {
/* remove func_keys */
$source = preg_replace('/' . $search . '/', '', $source);
}
return $source;
}
$this->register_postfilter('smarty_postfilter_defun');
[/php:1:d5a4e8cf42]

[messju]

@kills: no, you can put alled functions in compiler.defun.php

[kills]

can you help me?
http://www.phpinsider.com/smarty-forum/viewtopic.php?p=10496#10496

[kills]

only for a better understanding:

are these statements are correct?

[boots]

@Kills: precisely.

[pt2002]

It's a little off-topic

I have a table with this structure: id pid name
With this I can build a simple tree.

I can read all records and show the tree with this function

[deadcat]

very good!~

[stalker]

Hello smarty-lovers ;o)

I was using the old "defun" plugin with smarty and php4 successfully.
After a server change I have to cope with PHP5 and problems resulting from the change. One of these problems is that defun doesn't seem to work, I found the new plugin code from messju here and pasted it into compiler.defun.php but now i get this error:

[stalker]

Never mind, it was my mistake the necessary tokenize use flag was not set when compiling php.

It seems to work fine now.