function Smarty_Compiler::_compile_compiler_tag in Quiz 6.6

Same name and namespace in other branches

1. 6.5 includes/moodle/lib/smarty/Smarty_Compiler.class.php \Smarty_Compiler::_compile_compiler_tag()

compile the custom compiler tag

sets $output to the compiled custom compiler tag

Parameters

string $tag_command:

string $tag_args:

string $output:

Return value

boolean

1 call to Smarty_Compiler::_compile_compiler_tag()

Smarty_Compiler::_compile_tag in includes/moodle/lib/smarty/Smarty_Compiler.class.php

Compile a template tag

File

includes/moodle/lib/smarty/Smarty_Compiler.class.php, line 595

Class

Smarty_Compiler

Template compiling class @package Smarty

Code

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

  /*
   * First we check if the compiler function has already been registered
   * or loaded from a plugin file.
   */
  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,
        );
      }
    }
  }

  /*
   * True return value means that we either found a plugin or a
   * dynamically registered function. False means that we didn't and the
   * compiler should now emit code to load custom function plugin for this
   * tag.
   */
  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;
  }
}