smarty_compiler.class.php

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            case '/capture':
                return $this->_compile_capture_tag(false);

            case 'ldelim':
                return $this->left_delimiter;

            case 'rdelim':
                return $this->right_delimiter;

            case 'section':
                $this->_push_tag('section');
                return $this->_compile_section_start($tag_args);

            case 'sectionelse':
                $this->_push_tag('sectionelse');
                return "<?php endfor; else: ?>";
                break;

            case '/section':
                $_open_tag = $this->_pop_tag('section');
                if ($_open_tag == 'sectionelse')
                    return "<?php endif; ?>";
                else
                    return "<?php endfor; endif; ?>";

            case 'foreach':
                $this->_push_tag('foreach');
                return $this->_compile_foreach_start($tag_args);
                break;

            case 'foreachelse':
                $this->_push_tag('foreachelse');
                return "<?php endforeach; unset(\$_from); else: ?>";

            case '/foreach':
                $_open_tag = $this->_pop_tag('foreach');
                if ($_open_tag == 'foreachelse')
                    return "<?php endif; ?>";
                else
                    return "<?php endforeach; unset(\$_from); endif; ?>";
                break;

            case 'strip':
            case '/strip':
                if ($tag_command{0}=='/') {
                    $this->_pop_tag('strip');
                    if (--$this->_strip_depth==0) { /* outermost closing {/strip} */
                        $this->_additional_newline = "\n";
                        return $this->left_delimiter.$tag_command.$this->right_delimiter;
                    }
                } else {
                    $this->_push_tag('strip');
                    if ($this->_strip_depth++==0) { /* outermost opening {strip} */
                        $this->_additional_newline = "";
                        return $this->left_delimiter.$tag_command.$this->right_delimiter;
                    }
                }
                return '';

            case 'php':
                /* handle folded tags replaced by {php} */
                list(, $block) = each($this->_folded_blocks);
                $this->_current_line_no += substr_count($block[0], "\n");
                /* the number of matched elements in the regexp in _compile_file()
                   determins the type of folded tag that was found */
                switch (count($block)) {
                    case 2: /* comment */
                        return '';

                    case 3: /* literal */
                        return "<?php echo '" . strtr($block[2], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>" . $this->_additional_newline;

                    case 4: /* php */
                        if ($this->security && !$this->security_settings['PHP_TAGS']) {
                            $this->_syntax_error("(secure mode) php tags not permitted", E_USER_WARNING, __FILE__, __LINE__);
                            return;
                        }
                        return '<?php ' . $block[3] .' ?>';
                }
                break;

            case 'insert':
                return $this->_compile_insert_tag($tag_args);

            default:
                if ($this->_compile_compiler_tag($tag_command, $tag_args, $output)) {
                    return $output;
                } else if ($this->_compile_block_tag($tag_command, $tag_args, $tag_modifier, $output)) {
                    return $output;
                } else if ($this->_compile_custom_tag($tag_command, $tag_args, $tag_modifier, $output)) {
                    return $output;                    
                } else {
                    $this->_syntax_error("unrecognized tag '$tag_command'", E_USER_ERROR, __FILE__, __LINE__);
                }

        }
    }

    function _compile_compiler_tag($tag_command, $tag_args, &$output)
    {
        $found = false;
        $have_function = true;

        if (isset($this->_plugins['compiler'][$tag_command])) {
            $found = true;
            $plugin_func = $this->_plugins['compiler'][$tag_command][0];
            if (!is_callable($plugin_func)) {
                $message = "compiler function '$tag_command' is not implemented";
                $have_function = false;
            }
        }

        else if ($plugin_file = $this->_get_plugin_filepath('compiler', $tag_command)) {
            $found = true;

            include_once $plugin_file;

            $plugin_func = 'smarty_compiler_' . $tag_command;
            if (!is_callable($plugin_func)) {
                $message = "plugin function $plugin_func() not found in $plugin_file\n";
                $have_function = false;
            } else {
                $this->_plugins['compiler'][$tag_command] = array($plugin_func, null, null, null, true);
            }
        }

        if ($found) {
            if ($have_function) {
                $output = call_user_func_array($plugin_func, array($tag_args, &$this));
                if($output != '') {
                $output = '<?php ' . $this->_push_cacheable_state('compiler', $tag_command)
                                   . $output
                                   . $this->_pop_cacheable_state('compiler', $tag_command) . ' ?>';
                }
            } else {
                $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
            }
            return true;
        } else {
            return false;
        }
    }

    function _compile_block_tag($tag_command, $tag_args, $tag_modifier, &$output)
    {
        if ($tag_command{0} == '/') {
            $start_tag = false;
            $tag_command = substr($tag_command, 1);
        } else
            $start_tag = true;

        $found = false;
        $have_function = true;

        if (isset($this->_plugins['block'][$tag_command])) {
            $found = true;
            $plugin_func = $this->_plugins['block'][$tag_command][0];
            if (!is_callable($plugin_func)) {
                $message = "block function '$tag_command' is not implemented";
                $have_function = false;
            }
        }
 
        else if ($plugin_file = $this->_get_plugin_filepath('block', $tag_command)) {
            $found = true;

            include_once $plugin_file;

            $plugin_func = 'smarty_block_' . $tag_command;
            if (!function_exists($plugin_func)) {
                $message = "plugin function $plugin_func() not found in $plugin_file\n";
                $have_function = false;
            } else {
                $this->_plugins['block'][$tag_command] = array($plugin_func, null, null, null, true);

            }
        }

        if (!$found) {
            return false;
        } else if (!$have_function) {
            $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
            return true;
        }

        $this->_add_plugin('block', $tag_command);

        if ($start_tag)
            $this->_push_tag($tag_command);
        else
            $this->_pop_tag($tag_command);

        if ($start_tag) {
            $output = '<?php ' . $this->_push_cacheable_state('block', $tag_command);
            $attrs = $this->_parse_attrs($tag_args);
            $arg_list = $this->_compile_arg_list('block', $tag_command, $attrs, $_cache_attrs='');
            $output .= "$_cache_attrs\$this->_tag_stack[] = array('$tag_command', array(".implode(',', $arg_list).')); ';
            $output .= $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], null, $this, $_block_repeat=true);';
            $output .= 'while ($_block_repeat) { ob_start(); ?>';
        } else {
            $output = '<?php $this->_block_content = ob_get_contents(); ob_end_clean(); ';
            $_out_tag_text = $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], $this->_block_content, $this, $_block_repeat=false)';
            if ($tag_modifier != '') {
                $this->_parse_modifiers($_out_tag_text, $tag_modifier);
            }
            $output .= 'echo '.$_out_tag_text.'; } ';
            $output .= " array_pop(\$this->_tag_stack); " . $this->_pop_cacheable_state('block', $tag_command) . '?>';
        }

        return true;
    }

    function _compile_custom_tag($tag_command, $tag_args, $tag_modifier, &$output)
    {
        $found = false;
        $have_function = true;

        if (isset($this->_plugins['function'][$tag_command])) {
            $found = true;
            $plugin_func = $this->_plugins['function'][$tag_command][0];
            if (!is_callable($plugin_func)) {
                $message = "custom function '$tag_command' is not implemented";
                $have_function = false;
            }
        }

        else if ($plugin_file = $this->_get_plugin_filepath('function', $tag_command)) {
            $found = true;

            include_once $plugin_file;

            $plugin_func = 'smarty_function_' . $tag_command;
            if (!function_exists($plugin_func)) {
                $message = "plugin function $plugin_func() not found in $plugin_file\n";
                $have_function = false;
            } else {
                $this->_plugins['function'][$tag_command] = array($plugin_func, null, null, null, true);

            }
        }

        if (!$found) {
            return false;
        } else if (!$have_function) {
            $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
            return true;
        }
        $this->_add_plugin('function', $tag_command);

        $_cacheable_state = $this->_push_cacheable_state('function', $tag_command);
        $attrs = $this->_parse_attrs($tag_args);
        $arg_list = $this->_compile_arg_list('function', $tag_command, $attrs, $_cache_attrs='');

        $output = $this->_compile_plugin_call('function', $tag_command).'(array('.implode(',', $arg_list)."), \$this)";
        if($tag_modifier != '') {
            $this->_parse_modifiers($output, $tag_modifier);
        }

        if($output != '') {
            $output =  '<?php ' . $_cacheable_state . $_cache_attrs . 'echo ' . $output . ';'
                . $this->_pop_cacheable_state('function', $tag_command) . "?>" . $this->_additional_newline;
        }

        return true;
    }

    function _compile_registered_object_tag($tag_command, $attrs, $tag_modifier)
    {
        if ($tag_command{0} == '/') {
            $start_tag = false;
            $tag_command = substr($tag_command, 1);
        } else {
            $start_tag = true;
        }

        list($object, $obj_comp) = explode('->', $tag_command);

        $arg_list = array();
        if(count($attrs)) {
            $_assign_var = false;
            foreach ($attrs as $arg_name => $arg_value) {
                if($arg_name == 'assign') {
                    $_assign_var = $arg_value;
                    unset($attrs['assign']);
                    continue;
                }
                if (is_bool($arg_value))
                    $arg_value = $arg_value ? 'true' : 'false';
                $arg_list[] = "'$arg_name' => $arg_value";
            }
        }

        if($this->_reg_objects[$object][2]) {
            $args = "array(".implode(',', (array)$arg_list)."), \$this";
        } else {
            $args = implode(',', array_values($attrs));
            if (empty($args)) {
                $args = 'null';
            }
        }

        $prefix = '';
        $postfix = '';
        $newline = '';
        if(!is_object($this->_reg_objects[$object][0])) {