📄 smarty_compiler.class.php
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case '!==':
case '==':
case '===':
case '>':
case '<':
case '!=':
case '<>':
case '<<':
case '>>':
case '<=':
case '>=':
case '&&':
case '||':
case '|':
case '^':
case '&':
case '~':
case ')':
case ',':
case '+':
case '-':
case '*':
case '/':
case '@':
break;
case 'eq':
$token = '==';
break;
case 'ne':
case 'neq':
$token = '!=';
break;
case 'lt':
$token = '<';
break;
case 'le':
case 'lte':
$token = '<=';
break;
case 'gt':
$token = '>';
break;
case 'ge':
case 'gte':
$token = '>=';
break;
case 'and':
$token = '&&';
break;
case 'or':
$token = '||';
break;
case 'not':
$token = '!';
break;
case 'mod':
$token = '%';
break;
case '(':
array_push($is_arg_stack, $i);
break;
case 'is':
/* If last token was a ')', we operate on the parenthesized
expression. The start of the expression is on the stack.
Otherwise, we operate on the last encountered token. */
if ($tokens[$i-1] == ')')
$is_arg_start = array_pop($is_arg_stack);
else
$is_arg_start = $i-1;
/* Construct the argument for 'is' expression, so it knows
what to operate on. */
$is_arg = implode(' ', array_slice($tokens, $is_arg_start, $i - $is_arg_start));
/* Pass all tokens from next one until the end to the
'is' expression parsing function. The function will
return modified tokens, where the first one is the result
of the 'is' expression and the rest are the tokens it
didn't touch. */
$new_tokens = $this->_parse_is_expr($is_arg, array_slice($tokens, $i+1));
/* Replace the old tokens with the new ones. */
array_splice($tokens, $is_arg_start, count($tokens), $new_tokens);
/* Adjust argument start so that it won't change from the
current position for the next iteration. */
$i = $is_arg_start;
break;
default:
if(preg_match('~^' . $this->_func_regexp . '$~', $token) ) {
// function call
if($this->security &&
!in_array($token, $this->security_settings['IF_FUNCS'])) {
$this->_syntax_error("(secure mode) '$token' not allowed in if statement", E_USER_ERROR, __FILE__, __LINE__);
}
} elseif(preg_match('~^' . $this->_var_regexp . '$~', $token) && (strpos('+-*/^%&|', substr($token, -1)) === false) && isset($tokens[$i+1]) && $tokens[$i+1] == '(') {
// variable function call
$this->_syntax_error("variable function call '$token' not allowed in if statement", E_USER_ERROR, __FILE__, __LINE__);
} elseif(preg_match('~^' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '(?:' . $this->_mod_regexp . '*)$~', $token)) {
// object or variable
$token = $this->_parse_var_props($token);
} elseif(is_numeric($token)) {
// number, skip it
} else {
$this->_syntax_error("unidentified token '$token'", E_USER_ERROR, __FILE__, __LINE__);
}
break;
}
}
if ($elseif)
return '<?php elseif ('.implode(' ', $tokens).'): ?>';
else
return '<?php if ('.implode(' ', $tokens).'): ?>';
}
function _compile_arg_list($type, $name, $attrs, &$cache_code) {
$arg_list = array();
if (isset($type) && isset($name)
&& isset($this->_plugins[$type])
&& isset($this->_plugins[$type][$name])
&& empty($this->_plugins[$type][$name][4])
&& is_array($this->_plugins[$type][$name][5])
) {
/* we have a list of parameters that should be cached */
$_cache_attrs = $this->_plugins[$type][$name][5];
$_count = $this->_cache_attrs_count++;
$cache_code = "\$_cache_attrs =& \$this->_smarty_cache_attrs('$this->_cache_serial','$_count');";
} else {
/* no parameters are cached */
$_cache_attrs = null;
}
foreach ($attrs as $arg_name => $arg_value) {
if (is_bool($arg_value))
$arg_value = $arg_value ? 'true' : 'false';
if (is_null($arg_value))
$arg_value = 'null';
if ($_cache_attrs && in_array($arg_name, $_cache_attrs)) {
$arg_list[] = "'$arg_name' => (\$this->_cache_including) ? \$_cache_attrs['$arg_name'] : (\$_cache_attrs['$arg_name']=$arg_value)";
} else {
$arg_list[] = "'$arg_name' => $arg_value";
}
}
return $arg_list;
}
/**
* Parse is expression
*
* @param string $is_arg
* @param array $tokens
* @return array
*/
function _parse_is_expr($is_arg, $tokens)
{
$expr_end = 0;
$negate_expr = false;
if (($first_token = array_shift($tokens)) == 'not') {
$negate_expr = true;
$expr_type = array_shift($tokens);
} else
$expr_type = $first_token;
switch ($expr_type) {
case 'even':
if (isset($tokens[$expr_end]) && $tokens[$expr_end] == 'by') {
$expr_end++;
$expr_arg = $tokens[$expr_end++];
$expr = "!(1 & ($is_arg / " . $this->_parse_var_props($expr_arg) . "))";
} else
$expr = "!(1 & $is_arg)";
break;
case 'odd':
if (isset($tokens[$expr_end]) && $tokens[$expr_end] == 'by') {
$expr_end++;
$expr_arg = $tokens[$expr_end++];
$expr = "(1 & ($is_arg / " . $this->_parse_var_props($expr_arg) . "))";
} else
$expr = "(1 & $is_arg)";
break;
case 'div':
if (@$tokens[$expr_end] == 'by') {
$expr_end++;
$expr_arg = $tokens[$expr_end++];
$expr = "!($is_arg % " . $this->_parse_var_props($expr_arg) . ")";
} else {
$this->_syntax_error("expecting 'by' after 'div'", E_USER_ERROR, __FILE__, __LINE__);
}
break;
default:
$this->_syntax_error("unknown 'is' expression - '$expr_type'", E_USER_ERROR, __FILE__, __LINE__);
break;
}
if ($negate_expr) {
$expr = "!($expr)";
}
array_splice($tokens, 0, $expr_end, $expr);
return $tokens;
}
/**
* Parse attribute string
*
* @param string $tag_args
* @return array
*/
function _parse_attrs($tag_args)
{
/* Tokenize tag attributes. */
preg_match_all('~(?:' . $this->_obj_call_regexp . '|' . $this->_qstr_regexp . ' | (?>[^"\'=\s]+)
)+ |
[=]
~x', $tag_args, $match);
$tokens = $match[0];
$attrs = array();
/* Parse state:
0 - expecting attribute name
1 - expecting '='
2 - expecting attribute value (not '=') */
$state = 0;
foreach ($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 == '=') {
$state = 2;
} else
$this->_syntax_error("expecting '=' after attribute name '$last_token'", E_USER_ERROR, __FILE__, __LINE__);
break;
case 2:
/* If token is not '=', we set the attribute value and go to
state 0. */
if ($token != '=') {
/* We booleanize the token if it's a non-quoted possible
boolean value. */
if (preg_match('~^(on|yes|true)$~', $token)) {
$token = 'true';
} else if (preg_match('~^(off|no|false)$~', $token)) {
$token = 'false';
} else if ($token == 'null') {
$token = 'null';
} else if (preg_match('~^' . $this->_num_const_regexp . '|0[xX][0-9a-fA-F]+$~', $token)) {
/* treat integer literally */
} else if (!preg_match('~^' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '(?:' . $this->_mod_regexp . ')*$~', $token)) {
/* treat as a string, double-quote it escaping quotes */
$token = '"'.addslashes($token).'"';
}
$attrs[$attr_name] = $token;
$state = 0;
} else
$this->_syntax_error("'=' cannot be an attribute value", E_USER_ERROR, __FILE__, __LINE__);
break;
}
$last_token = $token;
}
if($state != 0) {
if($state == 1) {
$this->_syntax_error("expecting '=' after attribute name '$last_token'", E_USER_ERROR, __FILE__, __LINE__);
} else {
$this->_syntax_error("missing attribute value", E_USER_ERROR, __FILE__, __LINE__);
}
}
$this->_parse_vars_props($attrs);
return $attrs;
}
/**
* compile multiple variables and section properties tokens into
* PHP code
*
* @param array $tokens
*/
function _parse_vars_props(&$tokens)
{
foreach($tokens as $key => $val) {
$tokens[$key] = $this->_parse_var_props($val);
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