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commit updates, passes all smoke tests

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This commit is contained in:
mohrt
2002-12-19 23:55:17 +00:00
parent 51ca3a0dc9
commit bc3eb218db
2 changed files with 186 additions and 116 deletions
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139
Smarty_Compiler.class.php
View File

@@ -61,8 +61,9 @@ class Smarty_Compiler extends Smarty {
var $_avar_regexp = null; var $_avar_regexp = null;
var $_mod_regexp = null; var $_mod_regexp = null;
var $_var_regexp = null; var $_var_regexp = null;
var $_param_regexp = null; var $_parenth_param_regexp = null;
var $_obj_regexp = null; var $_func_call_regexp = null;
var $_obj_call_regexp = null;
@@ -85,7 +86,7 @@ class Smarty_Compiler extends Smarty {
// matches single or double quoted strings // matches single or double quoted strings
$this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_si_qstr_regexp . ')'; $this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_si_qstr_regexp . ')';
// matches dollar vars: // matches $ vars (not objects):
// $foo // $foo
// $foo.bar // $foo.bar
// $foo.bar.foobar // $foo.bar.foobar
@@ -126,30 +127,7 @@ class Smarty_Compiler extends Smarty {
// "text" // "text"
$this->_var_regexp = '(?:' . $this->_avar_regexp . '|' . $this->_qstr_regexp . ')'; $this->_var_regexp = '(?:' . $this->_avar_regexp . '|' . $this->_qstr_regexp . ')';
// matches valid function name: // matches valid object call (no objects allowed in parameters):
// foo123
// /foo123
$this->_func_regexp = '\/?\w+';
// matches valid parameter syntax (except an object):
// true
// $foo
// $foo|bar
// #foo#
// #foo#|bar
// "text"
// "text"|bar
$this->_param_regexp = '(?:\w+|' . $this->_var_regexp . $this->_mod_regexp . ')';
// matches valid object parameters:
//
// "text"
// $foo, $bar, "text"
// $foo|bar, "foo"|bar
$this->_obj_param_regexp = '(?:' . $this->_param_regexp
. '(?:\s*,\s*(?:' . $this->_param_regexp .'))*)';
// matches valid object call:
// $foo->bar // $foo->bar
// $foo->bar() // $foo->bar()
// $foo->bar("text") // $foo->bar("text")
@@ -157,7 +135,41 @@ class Smarty_Compiler extends Smarty {
// $foo->bar($foo|bar, "foo"|bar) // $foo->bar($foo|bar, "foo"|bar)
// $foo->bar->foo() // $foo->bar->foo()
// $foo->bar->foo->bar() // $foo->bar->foo->bar()
$this->_obj_regexp = '(?:\$\w+(?:\.\w+)*(?:\->\w+)+(?:\(' . $this->_obj_param_regexp . '\))?)'; $this->_obj_call_regexp = '(?:\$\w+(?:\.\w+)*(?:\->\w+)+(?:\((?:\w+|'
. $this->_var_regexp . $this->_mod_regexp . '(?:\s*,\s*(?:(?:\w+|'
. $this->_var_regexp . $this->_mod_regexp . ')))*)?\))?)';
// matches valid function name:
// foo123
// _foo_bar
$this->_func_regexp = '[a-zA-Z_]\w*';
// matches valid parameter values:
// true
// $foo
// $foo|bar
// #foo#
// #foo#|bar
// "text"
// "text"|bar
// $foo->bar()
$this->_param_regexp = '(?:(?:' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '|\w+)' . $this->_mod_regexp . ')';
// matches valid parenthesised function parameters:
//
// "text"
// $foo, $bar, "text"
// $foo|bar, "foo"|bar, $foo->bar($foo)|bar
$this->_parenth_param_regexp = '(?:\((?:' . $this->_param_regexp
. '(?:\s*,\s*(?:' . $this->_param_regexp . '))*)?\))';
// matches valid function call:
// foo()
// foo_bar($foo)
// _foo_bar($foo,"bar")
// foo123($foo,$foo->bar(),"foo")
$this->_func_call_regexp = '(?:' . $this->_func_regexp . '(?:' . $this->_parenth_param_regexp . '))';
} }
/*======================================================================*\ /*======================================================================*\
@@ -332,7 +344,7 @@ class Smarty_Compiler extends Smarty {
return ''; return '';
/* Split tag into two three parts: command, command modifiers and the arguments. */ /* Split tag into two three parts: command, command modifiers and the arguments. */
if(! preg_match('/^(?:(' . $this->_obj_regexp . '|' . $this->_var_regexp . '|' . $this->_func_regexp . ')(' . $this->_mod_regexp . ')) if(! preg_match('/^(?:(' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '|\/?' . $this->_func_regexp . ')(' . $this->_mod_regexp . '))
(?:\s+(.*))?$ (?:\s+(.*))?$
/xs', $template_tag, $match)) { /xs', $template_tag, $match)) {
$this->_syntax_error("unrecognized tag: $template_tag"); $this->_syntax_error("unrecognized tag: $template_tag");
@@ -344,7 +356,7 @@ class Smarty_Compiler extends Smarty {
/* If the tag name is not a function, we process it. */ /* If the tag name is not a function, we process it. */
if (!preg_match('!^' . $this->_func_regexp . '$!', $tag_command)) { if (!preg_match('!^\/?' . $this->_func_regexp . '$!', $tag_command)) {
$array_tag_command = array($tag_command . $tag_modifier); $array_tag_command = array($tag_command . $tag_modifier);
$this->_parse_vars_props($array_tag_command); $this->_parse_vars_props($array_tag_command);
return "<?php echo $array_tag_command[0]; ?>\n"; return "<?php echo $array_tag_command[0]; ?>\n";
@@ -942,59 +954,75 @@ class Smarty_Compiler extends Smarty {
\*======================================================================*/ \*======================================================================*/
function _compile_if_tag($tag_args, $elseif = false) function _compile_if_tag($tag_args, $elseif = false)
{ {
/* Tokenize args for 'if' tag. */ /* Tokenize args for 'if' tag. */
preg_match_all('/(?:' . $this->_qstr_regexp . ' | # match all quoted strings preg_match_all('/(?>
[(),] | # match parentheses and commas ' . $this->_func_call_regexp . ' | # valid function call
[^\s(),]+ # match any other token that is not any of the above ' . $this->_obj_call_regexp . $this->_mod_regexp . ' | # valid object call
' . $this->_var_regexp . $this->_mod_regexp . ' | # var or quoted string
\d+|\(|\)|,|\!|\^|==|<=>|<=|=>|\&\&|\|\||=|<|>|\||\% | # valid non-word token
neq|lte|gte|and|not|mod|eq|ne|lt|le|gt|ge|or|is|div|by # valid word token
)/x', $tag_args, $match); )/x', $tag_args, $match);
$tokens = $match[0]; $tokens = $match[0];
$is_arg_stack = array(); $is_arg_stack = array();
for ($i = 0, $for_max = count($tokens); $i < $for_max; $i++) { for ($i = 0; $i < count($tokens); $i++) {
$token = &$tokens[$i]; $token = &$tokens[$i];
switch ($token) { switch ($token) {
case 'eq': case 'eq':
case '==':
$token = '=='; $token = '==';
break; break;
case 'ne': case 'ne':
case 'neq': case 'neq':
case '!=':
$token = '!='; $token = '!=';
break; break;
case 'lt': case 'lt':
case '<':
$token = '<'; $token = '<';
break; break;
case 'le': case 'le':
case 'lte': case 'lte':
case '<=':
$token = '<='; $token = '<=';
break; break;
case 'gt': case 'gt':
case '>':
$token = '>'; $token = '>';
break; break;
case 'ge': case 'ge':
case 'gte': case 'gte':
case '>=':
$token = '>='; $token = '>=';
break; break;
case 'and': case 'and':
case '&&':
$token = '&&'; $token = '&&';
break; break;
case 'or': case 'or':
case '||':
$token = '||'; $token = '||';
break; break;
case 'not': case 'not':
case '!':
$token = '!'; $token = '!';
break; break;
case 'mod': case 'mod':
case '%':
$token = '%'; $token = '%';
break; break;
@@ -1033,21 +1061,18 @@ class Smarty_Compiler extends Smarty {
break; break;
default: default:
if(preg_match('!^(' . $this->_func_regexp . ')(' . $this->_parenth_param_regexp . ')$!', $token, $match)) {
if(preg_match('!^[a-zA-Z_]\w+$!', $token)) {
if($this->security && if($this->security &&
$i+1 < count($tokens) && $i+1 < count($tokens) &&
$tokens[$i+1] == '(' && $tokens[$i+1] == '(' &&
!in_array($token, $this->security_settings['IF_FUNCS'])) { !in_array($match[1], $this->security_settings['IF_FUNCS'])) {
$this->_syntax_error("(secure mode) '".$tokens[$i]."' not allowed in if statement"); $this->_syntax_error("(secure mode) '".$tokens[$i]."' not allowed in if statement");
} else { } else {
if(!function_exists($token)) { if(!function_exists($match[1])) {
$this->_syntax_error("reference to non-existant function: $token"); $this->_syntax_error("reference to non-existant function: $token");
} }
} }
$token = str_replace($match[2], $this->_parse_parenth_args($match[2]), $token);
} else { } else {
$tmptoken = array($token); $tmptoken = array($token);
@@ -1204,8 +1229,9 @@ class Smarty_Compiler extends Smarty {
function _parse_vars_props(&$tokens) function _parse_vars_props(&$tokens)
{ {
foreach($tokens as $key => $val) { foreach($tokens as $key => $val) {
if(preg_match('!^(' . $this->_dvar_regexp . '|' . $this->_obj_regexp . ')' . $this->_mod_regexp . '$!', $val)) {
// $ variable if(preg_match('!^(' . $this->_obj_call_regexp . '|' . $this->_dvar_regexp . ')' . $this->_mod_regexp . '$!', $val)) {
// $ variable or object
$tokens[$key] = $this->_parse_var($val); $tokens[$key] = $this->_parse_var($val);
} }
elseif(preg_match('!^' . $this->_db_qstr_regexp . $this->_mod_regexp . '$!', $val)) { elseif(preg_match('!^' . $this->_db_qstr_regexp . $this->_mod_regexp . '$!', $val)) {
@@ -1265,7 +1291,7 @@ class Smarty_Compiler extends Smarty {
function _parse_var($var_expr) function _parse_var($var_expr)
{ {
preg_match('!(' . $this->_obj_regexp . '|' . $this->_var_regexp . ')(' . $this->_mod_regexp . ')$!', $var_expr, $match); preg_match('!(' . $this->_obj_call_regexp . '|' . $this->_var_regexp . ')(' . $this->_mod_regexp . ')$!', $var_expr, $match);
$var_ref = substr($match[1],1); $var_ref = substr($match[1],1);
$modifiers = $match[2]; $modifiers = $match[2];
@@ -1322,14 +1348,8 @@ class Smarty_Compiler extends Smarty {
$this->_syntax_error('(secure) call to private object member is not allowed'); $this->_syntax_error('(secure) call to private object member is not allowed');
} else { } else {
// parse each parameter to the object // parse each parameter to the object
if(preg_match('!(?:\->\w+)+(?:\((' . $this->_obj_param_regexp . ')\))?!', $index, $match)) { if(preg_match('!(?:\->\w+)+(?:(' . $this->_parenth_param_regexp . '))?!', $index, $match)) {
preg_match_all('!' . $this->_param_regexp . '!',$match[1], $match); $index = str_replace($match[1], $this->_parse_parenth_args($match[1]), $index);
$match = $match[0];
rsort($match);
reset($match);
$orig_vals = $match;
$this->_parse_vars_props($match);
$index = str_replace($orig_vals, $match, $index);
} }
$output .= $index; $output .= $index;
} }
@@ -1348,6 +1368,21 @@ class Smarty_Compiler extends Smarty {
return $output; return $output;
} }
/*======================================================================*\
Function: _parse_parenth_args
Purpose: parse arguments in function call parenthesis
\*======================================================================*/
function _parse_parenth_args($parenth_args)
{
preg_match_all('!' . $this->_param_regexp . '!',$parenth_args, $match);
$match = $match[0];
rsort($match);
reset($match);
$orig_vals = $match;
$this->_parse_vars_props($match);
return str_replace($orig_vals, $match, $parenth_args);
}
/*======================================================================*\ /*======================================================================*\
Function: _parse_conf_var Function: _parse_conf_var

139
libs/Smarty_Compiler.class.php
View File

@@ -61,8 +61,9 @@ class Smarty_Compiler extends Smarty {
var $_avar_regexp = null; var $_avar_regexp = null;
var $_mod_regexp = null; var $_mod_regexp = null;
var $_var_regexp = null; var $_var_regexp = null;
var $_param_regexp = null; var $_parenth_param_regexp = null;
var $_obj_regexp = null; var $_func_call_regexp = null;
var $_obj_call_regexp = null;
@@ -85,7 +86,7 @@ class Smarty_Compiler extends Smarty {
// matches single or double quoted strings // matches single or double quoted strings
$this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_si_qstr_regexp . ')'; $this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_si_qstr_regexp . ')';
// matches dollar vars: // matches $ vars (not objects):
// $foo // $foo
// $foo.bar // $foo.bar
// $foo.bar.foobar // $foo.bar.foobar
@@ -126,30 +127,7 @@ class Smarty_Compiler extends Smarty {
// "text" // "text"
$this->_var_regexp = '(?:' . $this->_avar_regexp . '|' . $this->_qstr_regexp . ')'; $this->_var_regexp = '(?:' . $this->_avar_regexp . '|' . $this->_qstr_regexp . ')';
// matches valid function name: // matches valid object call (no objects allowed in parameters):
// foo123
// /foo123
$this->_func_regexp = '\/?\w+';
// matches valid parameter syntax (except an object):
// true
// $foo
// $foo|bar
// #foo#
// #foo#|bar
// "text"
// "text"|bar
$this->_param_regexp = '(?:\w+|' . $this->_var_regexp . $this->_mod_regexp . ')';
// matches valid object parameters:
//
// "text"
// $foo, $bar, "text"
// $foo|bar, "foo"|bar
$this->_obj_param_regexp = '(?:' . $this->_param_regexp
. '(?:\s*,\s*(?:' . $this->_param_regexp .'))*)';
// matches valid object call:
// $foo->bar // $foo->bar
// $foo->bar() // $foo->bar()
// $foo->bar("text") // $foo->bar("text")
@@ -157,7 +135,41 @@ class Smarty_Compiler extends Smarty {
// $foo->bar($foo|bar, "foo"|bar) // $foo->bar($foo|bar, "foo"|bar)
// $foo->bar->foo() // $foo->bar->foo()
// $foo->bar->foo->bar() // $foo->bar->foo->bar()
$this->_obj_regexp = '(?:\$\w+(?:\.\w+)*(?:\->\w+)+(?:\(' . $this->_obj_param_regexp . '\))?)'; $this->_obj_call_regexp = '(?:\$\w+(?:\.\w+)*(?:\->\w+)+(?:\((?:\w+|'
. $this->_var_regexp . $this->_mod_regexp . '(?:\s*,\s*(?:(?:\w+|'
. $this->_var_regexp . $this->_mod_regexp . ')))*)?\))?)';
// matches valid function name:
// foo123
// _foo_bar
$this->_func_regexp = '[a-zA-Z_]\w*';
// matches valid parameter values:
// true
// $foo
// $foo|bar
// #foo#
// #foo#|bar
// "text"
// "text"|bar
// $foo->bar()
$this->_param_regexp = '(?:(?:' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '|\w+)' . $this->_mod_regexp . ')';
// matches valid parenthesised function parameters:
//
// "text"
// $foo, $bar, "text"
// $foo|bar, "foo"|bar, $foo->bar($foo)|bar
$this->_parenth_param_regexp = '(?:\((?:' . $this->_param_regexp
. '(?:\s*,\s*(?:' . $this->_param_regexp . '))*)?\))';
// matches valid function call:
// foo()
// foo_bar($foo)
// _foo_bar($foo,"bar")
// foo123($foo,$foo->bar(),"foo")
$this->_func_call_regexp = '(?:' . $this->_func_regexp . '(?:' . $this->_parenth_param_regexp . '))';
} }
/*======================================================================*\ /*======================================================================*\
@@ -332,7 +344,7 @@ class Smarty_Compiler extends Smarty {
return ''; return '';
/* Split tag into two three parts: command, command modifiers and the arguments. */ /* Split tag into two three parts: command, command modifiers and the arguments. */
if(! preg_match('/^(?:(' . $this->_obj_regexp . '|' . $this->_var_regexp . '|' . $this->_func_regexp . ')(' . $this->_mod_regexp . ')) if(! preg_match('/^(?:(' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '|\/?' . $this->_func_regexp . ')(' . $this->_mod_regexp . '))
(?:\s+(.*))?$ (?:\s+(.*))?$
/xs', $template_tag, $match)) { /xs', $template_tag, $match)) {
$this->_syntax_error("unrecognized tag: $template_tag"); $this->_syntax_error("unrecognized tag: $template_tag");
@@ -344,7 +356,7 @@ class Smarty_Compiler extends Smarty {
/* If the tag name is not a function, we process it. */ /* If the tag name is not a function, we process it. */
if (!preg_match('!^' . $this->_func_regexp . '$!', $tag_command)) { if (!preg_match('!^\/?' . $this->_func_regexp . '$!', $tag_command)) {
$array_tag_command = array($tag_command . $tag_modifier); $array_tag_command = array($tag_command . $tag_modifier);
$this->_parse_vars_props($array_tag_command); $this->_parse_vars_props($array_tag_command);
return "<?php echo $array_tag_command[0]; ?>\n"; return "<?php echo $array_tag_command[0]; ?>\n";
@@ -942,59 +954,75 @@ class Smarty_Compiler extends Smarty {
\*======================================================================*/ \*======================================================================*/
function _compile_if_tag($tag_args, $elseif = false) function _compile_if_tag($tag_args, $elseif = false)
{ {
/* Tokenize args for 'if' tag. */ /* Tokenize args for 'if' tag. */
preg_match_all('/(?:' . $this->_qstr_regexp . ' | # match all quoted strings preg_match_all('/(?>
[(),] | # match parentheses and commas ' . $this->_func_call_regexp . ' | # valid function call
[^\s(),]+ # match any other token that is not any of the above ' . $this->_obj_call_regexp . $this->_mod_regexp . ' | # valid object call
' . $this->_var_regexp . $this->_mod_regexp . ' | # var or quoted string
\d+|\(|\)|,|\!|\^|==|<=>|<=|=>|\&\&|\|\||=|<|>|\||\% | # valid non-word token
neq|lte|gte|and|not|mod|eq|ne|lt|le|gt|ge|or|is|div|by # valid word token
)/x', $tag_args, $match); )/x', $tag_args, $match);
$tokens = $match[0]; $tokens = $match[0];
$is_arg_stack = array(); $is_arg_stack = array();
for ($i = 0, $for_max = count($tokens); $i < $for_max; $i++) { for ($i = 0; $i < count($tokens); $i++) {
$token = &$tokens[$i]; $token = &$tokens[$i];
switch ($token) { switch ($token) {
case 'eq': case 'eq':
case '==':
$token = '=='; $token = '==';
break; break;
case 'ne': case 'ne':
case 'neq': case 'neq':
case '!=':
$token = '!='; $token = '!=';
break; break;
case 'lt': case 'lt':
case '<':
$token = '<'; $token = '<';
break; break;
case 'le': case 'le':
case 'lte': case 'lte':
case '<=':
$token = '<='; $token = '<=';
break; break;
case 'gt': case 'gt':
case '>':
$token = '>'; $token = '>';
break; break;
case 'ge': case 'ge':
case 'gte': case 'gte':
case '>=':
$token = '>='; $token = '>=';
break; break;
case 'and': case 'and':
case '&&':
$token = '&&'; $token = '&&';
break; break;
case 'or': case 'or':
case '||':
$token = '||'; $token = '||';
break; break;
case 'not': case 'not':
case '!':
$token = '!'; $token = '!';
break; break;
case 'mod': case 'mod':
case '%':
$token = '%'; $token = '%';
break; break;
@@ -1033,21 +1061,18 @@ class Smarty_Compiler extends Smarty {
break; break;
default: default:
if(preg_match('!^(' . $this->_func_regexp . ')(' . $this->_parenth_param_regexp . ')$!', $token, $match)) {
if(preg_match('!^[a-zA-Z_]\w+$!', $token)) {
if($this->security && if($this->security &&
$i+1 < count($tokens) && $i+1 < count($tokens) &&
$tokens[$i+1] == '(' && $tokens[$i+1] == '(' &&
!in_array($token, $this->security_settings['IF_FUNCS'])) { !in_array($match[1], $this->security_settings['IF_FUNCS'])) {
$this->_syntax_error("(secure mode) '".$tokens[$i]."' not allowed in if statement"); $this->_syntax_error("(secure mode) '".$tokens[$i]."' not allowed in if statement");
} else { } else {
if(!function_exists($token)) { if(!function_exists($match[1])) {
$this->_syntax_error("reference to non-existant function: $token"); $this->_syntax_error("reference to non-existant function: $token");
} }
} }
$token = str_replace($match[2], $this->_parse_parenth_args($match[2]), $token);
} else { } else {
$tmptoken = array($token); $tmptoken = array($token);
@@ -1204,8 +1229,9 @@ class Smarty_Compiler extends Smarty {
function _parse_vars_props(&$tokens) function _parse_vars_props(&$tokens)
{ {
foreach($tokens as $key => $val) { foreach($tokens as $key => $val) {
if(preg_match('!^(' . $this->_dvar_regexp . '|' . $this->_obj_regexp . ')' . $this->_mod_regexp . '$!', $val)) {
// $ variable if(preg_match('!^(' . $this->_obj_call_regexp . '|' . $this->_dvar_regexp . ')' . $this->_mod_regexp . '$!', $val)) {
// $ variable or object
$tokens[$key] = $this->_parse_var($val); $tokens[$key] = $this->_parse_var($val);
} }
elseif(preg_match('!^' . $this->_db_qstr_regexp . $this->_mod_regexp . '$!', $val)) { elseif(preg_match('!^' . $this->_db_qstr_regexp . $this->_mod_regexp . '$!', $val)) {
@@ -1265,7 +1291,7 @@ class Smarty_Compiler extends Smarty {
function _parse_var($var_expr) function _parse_var($var_expr)
{ {
preg_match('!(' . $this->_obj_regexp . '|' . $this->_var_regexp . ')(' . $this->_mod_regexp . ')$!', $var_expr, $match); preg_match('!(' . $this->_obj_call_regexp . '|' . $this->_var_regexp . ')(' . $this->_mod_regexp . ')$!', $var_expr, $match);
$var_ref = substr($match[1],1); $var_ref = substr($match[1],1);
$modifiers = $match[2]; $modifiers = $match[2];
@@ -1322,14 +1348,8 @@ class Smarty_Compiler extends Smarty {
$this->_syntax_error('(secure) call to private object member is not allowed'); $this->_syntax_error('(secure) call to private object member is not allowed');
} else { } else {
// parse each parameter to the object // parse each parameter to the object
if(preg_match('!(?:\->\w+)+(?:\((' . $this->_obj_param_regexp . ')\))?!', $index, $match)) { if(preg_match('!(?:\->\w+)+(?:(' . $this->_parenth_param_regexp . '))?!', $index, $match)) {
preg_match_all('!' . $this->_param_regexp . '!',$match[1], $match); $index = str_replace($match[1], $this->_parse_parenth_args($match[1]), $index);
$match = $match[0];
rsort($match);
reset($match);
$orig_vals = $match;
$this->_parse_vars_props($match);
$index = str_replace($orig_vals, $match, $index);
} }
$output .= $index; $output .= $index;
} }
@@ -1348,6 +1368,21 @@ class Smarty_Compiler extends Smarty {
return $output; return $output;
} }
/*======================================================================*\
Function: _parse_parenth_args
Purpose: parse arguments in function call parenthesis
\*======================================================================*/
function _parse_parenth_args($parenth_args)
{
preg_match_all('!' . $this->_param_regexp . '!',$parenth_args, $match);
$match = $match[0];
rsort($match);
reset($match);
$orig_vals = $match;
$this->_parse_vars_props($match);
return str_replace($orig_vals, $match, $parenth_args);
}
/*======================================================================*\ /*======================================================================*\
Function: _parse_conf_var Function: _parse_conf_var