Mibew/handlebars.php
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“oh the spacing!”
This commit is contained in:
Christian Blanquera 2015-09-21 18:49:08 +08:00
parent 33c76738b4
commit 0070ad79c0
2 changed files with 147 additions and 128 deletions
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48
src/Handlebars/ChildContext.php
View File

@ -41,20 +41,22 @@ namespace Handlebars;
class ChildContext extends Context class ChildContext extends Context
{ {
protected $parentContext = null; protected $parentContext = null;
/** /**
* Sets a parent context in which * Sets a parent context in which
* we will case for the ../ in get() * we will case for the ../ in get()
* *
* @param Context * @param Context $parent parent context
* @return void *
*/ * @return void
public function setParent(Context $parent) { */
$this->parentContext = $parent; public function setParent(Context $parent)
} {
$this->parentContext = $parent;
}
/** /**
* Get a available from current context * Get a available from current context
* Supported types : * Supported types :
* variable , ../variable , variable.variable , variable.[variable] , . * variable , ../variable , variable.variable , variable.[variable] , .
@ -69,17 +71,19 @@ class ChildContext extends Context
*/ */
public function get($variableName, $strict = false) public function get($variableName, $strict = false)
{ {
//if the variable name starts with a ../ //if the variable name starts with a ../
//and we have a parent //and we have a parent
if(strpos($variableName, '../') === 0 && $this->parentContext instanceof Context) { if (strpos($variableName, '../') === 0
//just remove the first ../ && $this->parentContext instanceof Context
$variableName = substr($variableName, 3); ) {
//just remove the first ../
$variableName = substr($variableName, 3);
//and let the parent context handle the rest //and let the parent context handle the rest
return $this->parentContext->get($variableName, $strict); return $this->parentContext->get($variableName, $strict);
} }
//otherwise, it's business as usual //otherwise, it's business as usual
return parent::get($variableName, $strict); return parent::get($variableName, $strict);
} }
} }

185
src/Handlebars/Handlebars.php
View File

@ -39,7 +39,7 @@ class Handlebars
const VERSION = '1.0.0'; const VERSION = '1.0.0';
/** /**
* factory method * Factory method
* *
* @param array $options see __construct's options parameter * @param array $options see __construct's options parameter
* *
@ -55,41 +55,57 @@ class Handlebars
} }
/** /**
* Current tokenizer instance
*
* @var Tokenizer * @var Tokenizer
*/ */
private $_tokenizer; private $_tokenizer;
/** /**
* Current parser instance
*
* @var Parser * @var Parser
*/ */
private $_parser; private $_parser;
/** /**
* Current helper list
*
* @var Helpers * @var Helpers
*/ */
private $_helpers; private $_helpers;
/** /**
* Current loader instance
*
* @var Loader * @var Loader
*/ */
private $_loader; private $_loader;
/** /**
* Current partial loader instance
*
* @var Loader * @var Loader
*/ */
private $_partialsLoader; private $_partialsLoader;
/** /**
* Current cache instance
*
* @var Cache * @var Cache
*/ */
private $_cache; private $_cache;
/** /**
* The escape method
*
* @var callable escape function to use * @var callable escape function to use
*/ */
private $_escape = 'htmlspecialchars'; private $_escape = 'htmlspecialchars';
/** /**
* Parameters for the escpae method above
*
* @var array parametes to pass to escape function * @var array parametes to pass to escape function
*/ */
private $_escapeArgs = array( private $_escapeArgs = array(
@ -165,8 +181,8 @@ class Handlebars
* @param mixed $data data to use as context * @param mixed $data data to use as context
* *
* @return string Rendered template * @return string Rendered template
* @see Handlebars::loadTemplate * @see Handlebars::loadTemplate
* @see Template::render * @see Template::render
*/ */
public function render($template, $data) public function render($template, $data)
{ {
@ -236,7 +252,7 @@ class Handlebars
return $this->getHelpers()->has($name); return $this->getHelpers()->has($name);
} }
/** /**
* Add a new helper. * Add a new helper.
* *
* @param string $name helper name * @param string $name helper name
@ -246,99 +262,98 @@ class Handlebars
*/ */
public function registerHelper($name, $helper) public function registerHelper($name, $helper)
{ {
$this->addHelper($name, function($template, $context, $arg) use ($helper) $callback = function ($template, $context, $arg) use ($helper) {
{ $args = $template->parseArguments($arg);
$args = $template->parseArguments($arg); $named = $template->parseNamedArguments($arg);
$named = $template->parseNamedArguments($arg);
foreach($args as $i => $arg) { foreach ($args as $i => $arg) {
//if it's literally string //if it's literally string
if($arg instanceof StringWrapper) { if ($arg instanceof StringWrapper) {
//we have no problems here //we have no problems here
$args[$i] = (string) $arg; $args[$i] = (string) $arg;
continue; continue;
} }
//not sure what to do if it's not a string or StringWrapper //not sure what to do if it's not a string or StringWrapper
if(!is_string($arg)) { if (!is_string($arg)) {
continue; continue;
} }
//it's a variable and we need to figure out the value of it //it's a variable and we need to figure out the value of it
$args[$i] = $context->get($arg); $args[$i] = $context->get($arg);
} }
//push the options //push the options
$args[] = array( $args[] = array(
//special fields //special fields
'data' => array( 'data' => array(
'index' => $context->get('@index'), 'index' => $context->get('@index'),
'key' => $context->get('@key'), 'key' => $context->get('@key'),
'first' => $context->get('@first'), 'first' => $context->get('@first'),
'last' => $context->get('@last')), 'last' => $context->get('@last')),
// Named arguments // Named arguments
'hash' => $named, 'hash' => $named,
// A renderer for block helper // A renderer for block helper
'fn' => function($inContext = null) use($context, $template) 'fn' => function ($inContext = null) use ($context, $template) {
{ $defined = !!$inContext;
$defined = !!$inContext;
if(!$defined) { if (!$defined) {
$inContext = $context; $inContext = $context;
$inContext->push($inContext->last()); $inContext->push($inContext->last());
} else if (!$inContext instanceof Context) { } else if (!$inContext instanceof Context) {
$inContext = new ChildContext($inContext); $inContext = new ChildContext($inContext);
$inContext->setParent($context); $inContext->setParent($context);
} }
$template->setStopToken('else'); $template->setStopToken('else');
$buffer = $template->render($inContext); $buffer = $template->render($inContext);
$template->setStopToken(false); $template->setStopToken(false);
//what if it's a loop ? //what if it's a loop ?
$template->rewind(); $template->rewind();
//What's the point of this again? //What's the point of this again?
//I mean in this context (literally) //I mean in this context (literally)
//$template->discard($inContext); //$template->discard($inContext);
if($defined) { if ($defined) {
$inContext->pop(); $inContext->pop();
} }
return $buffer; return $buffer;
}, },
// A render for the else block // A render for the else block
'inverse' => function($inContext = null) use($context, $template) 'inverse' => function ($inContext = null) use ($context, $template) {
{ $defined = !!$inContext;
$defined = !!$inContext;
if(!$defined) { if (!$defined) {
$inContext = $context; $inContext = $context;
$inContext->push($inContext->last()); $inContext->push($inContext->last());
} else if (!$inContext instanceof Context) { } else if (!$inContext instanceof Context) {
$inContext = new ChildContext($inContext); $inContext = new ChildContext($inContext);
$inContext->setParent($context); $inContext->setParent($context);
} }
$template->setStopToken('else'); $template->setStopToken('else');
$template->discard($inContext); $template->discard($inContext);
$template->setStopToken(false); $template->setStopToken(false);
$buffer = $template->render($inContext); $buffer = $template->render($inContext);
if($defined) { if ($defined) {
$inContext->pop(); $inContext->pop();
} }
return $buffer; return $buffer;
}, },
// The current context. // The current context.
'context' => $context, 'context' => $context,
// The current template // The current template
'template' => $template); 'template' => $template);
return call_user_func_array($helper, $args); return call_user_func_array($helper, $args);
}); };
$this->addHelper($name, $callback);
} }
/** /**
@ -366,7 +381,7 @@ class Handlebars
} }
/** /**
* get current loader * Get current loader
* *
* @return Loader * @return Loader
*/ */
@ -392,7 +407,7 @@ class Handlebars
} }
/** /**
* get current partials loader * Get current partials loader
* *
* @return Loader * @return Loader
*/ */
@ -618,7 +633,7 @@ class Handlebars
} }
/** /**
* try to tokenize source, or get them from cache if available * Try to tokenize source, or get them from cache if available
* *
* @param string $source handlebars source code * @param string $source handlebars source code
* *