From a4565e88edbc8e3bd092a475469769c86a4c350c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nicolas=20L=C5=93uillet?= Date: Fri, 2 Aug 2013 22:40:51 +0200 Subject: add Twig & refactor poche --- inc/Twig/Compiler.php | 267 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 267 insertions(+) create mode 100644 inc/Twig/Compiler.php (limited to 'inc/Twig/Compiler.php') diff --git a/inc/Twig/Compiler.php b/inc/Twig/Compiler.php new file mode 100644 index 00000000..99aecbcc --- /dev/null +++ b/inc/Twig/Compiler.php @@ -0,0 +1,267 @@ + + */ +class Twig_Compiler implements Twig_CompilerInterface +{ + protected $lastLine; + protected $source; + protected $indentation; + protected $env; + protected $debugInfo; + protected $sourceOffset; + protected $sourceLine; + protected $filename; + + /** + * Constructor. + * + * @param Twig_Environment $env The twig environment instance + */ + public function __construct(Twig_Environment $env) + { + $this->env = $env; + $this->debugInfo = array(); + } + + public function getFilename() + { + return $this->filename; + } + + /** + * Returns the environment instance related to this compiler. + * + * @return Twig_Environment The environment instance + */ + public function getEnvironment() + { + return $this->env; + } + + /** + * Gets the current PHP code after compilation. + * + * @return string The PHP code + */ + public function getSource() + { + return $this->source; + } + + /** + * Compiles a node. + * + * @param Twig_NodeInterface $node The node to compile + * @param integer $indentation The current indentation + * + * @return Twig_Compiler The current compiler instance + */ + public function compile(Twig_NodeInterface $node, $indentation = 0) + { + $this->lastLine = null; + $this->source = ''; + $this->sourceOffset = 0; + // source code starts at 1 (as we then increment it when we encounter new lines) + $this->sourceLine = 1; + $this->indentation = $indentation; + + if ($node instanceof Twig_Node_Module) { + $this->filename = $node->getAttribute('filename'); + } + + $node->compile($this); + + return $this; + } + + public function subcompile(Twig_NodeInterface $node, $raw = true) + { + if (false === $raw) { + $this->addIndentation(); + } + + $node->compile($this); + + return $this; + } + + /** + * Adds a raw string to the compiled code. + * + * @param string $string The string + * + * @return Twig_Compiler The current compiler instance + */ + public function raw($string) + { + $this->source .= $string; + + return $this; + } + + /** + * Writes a string to the compiled code by adding indentation. + * + * @return Twig_Compiler The current compiler instance + */ + public function write() + { + $strings = func_get_args(); + foreach ($strings as $string) { + $this->addIndentation(); + $this->source .= $string; + } + + return $this; + } + + /** + * Appends an indentation to the current PHP code after compilation. + * + * @return Twig_Compiler The current compiler instance + */ + public function addIndentation() + { + $this->source .= str_repeat(' ', $this->indentation * 4); + + return $this; + } + + /** + * Adds a quoted string to the compiled code. + * + * @param string $value The string + * + * @return Twig_Compiler The current compiler instance + */ + public function string($value) + { + $this->source .= sprintf('"%s"', addcslashes($value, "\0\t\"\$\\")); + + return $this; + } + + /** + * Returns a PHP representation of a given value. + * + * @param mixed $value The value to convert + * + * @return Twig_Compiler The current compiler instance + */ + public function repr($value) + { + if (is_int($value) || is_float($value)) { + if (false !== $locale = setlocale(LC_NUMERIC, 0)) { + setlocale(LC_NUMERIC, 'C'); + } + + $this->raw($value); + + if (false !== $locale) { + setlocale(LC_NUMERIC, $locale); + } + } elseif (null === $value) { + $this->raw('null'); + } elseif (is_bool($value)) { + $this->raw($value ? 'true' : 'false'); + } elseif (is_array($value)) { + $this->raw('array('); + $i = 0; + foreach ($value as $key => $value) { + if ($i++) { + $this->raw(', '); + } + $this->repr($key); + $this->raw(' => '); + $this->repr($value); + } + $this->raw(')'); + } else { + $this->string($value); + } + + return $this; + } + + /** + * Adds debugging information. + * + * @param Twig_NodeInterface $node The related twig node + * + * @return Twig_Compiler The current compiler instance + */ + public function addDebugInfo(Twig_NodeInterface $node) + { + if ($node->getLine() != $this->lastLine) { + $this->write("// line {$node->getLine()}\n"); + + // when mbstring.func_overload is set to 2 + // mb_substr_count() replaces substr_count() + // but they have different signatures! + if (((int) ini_get('mbstring.func_overload')) & 2) { + // this is much slower than the "right" version + $this->sourceLine += mb_substr_count(mb_substr($this->source, $this->sourceOffset), "\n"); + } else { + $this->sourceLine += substr_count($this->source, "\n", $this->sourceOffset); + } + $this->sourceOffset = strlen($this->source); + $this->debugInfo[$this->sourceLine] = $node->getLine(); + + $this->lastLine = $node->getLine(); + } + + return $this; + } + + public function getDebugInfo() + { + return $this->debugInfo; + } + + /** + * Indents the generated code. + * + * @param integer $step The number of indentation to add + * + * @return Twig_Compiler The current compiler instance + */ + public function indent($step = 1) + { + $this->indentation += $step; + + return $this; + } + + /** + * Outdents the generated code. + * + * @param integer $step The number of indentation to remove + * + * @return Twig_Compiler The current compiler instance + */ + public function outdent($step = 1) + { + // can't outdent by more steps than the current indentation level + if ($this->indentation < $step) { + throw new LogicException('Unable to call outdent() as the indentation would become negative'); + } + + $this->indentation -= $step; + + return $this; + } +} -- cgit v1.2.3