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-rw-r--r--Mustache/Compiler.php1104
1 files changed, 718 insertions, 386 deletions
diff --git a/Mustache/Compiler.php b/Mustache/Compiler.php
index dd5307d..2b0d1f9 100644
--- a/Mustache/Compiler.php
+++ b/Mustache/Compiler.php
@@ -1,386 +1,718 @@
-<?php
-
-/*
- * This file is part of Mustache.php.
- *
- * (c) 2012 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-/**
- * Mustache Compiler class.
- *
- * This class is responsible for turning a Mustache token parse tree into normal PHP source code.
- */
-class Mustache_Compiler
-{
-
- private $sections;
- private $source;
- private $indentNextLine;
- private $customEscape;
- private $charset;
-
- /**
- * Compile a Mustache token parse tree into PHP source code.
- *
- * @param string $source Mustache Template source code
- * @param string $tree Parse tree of Mustache tokens
- * @param string $name Mustache Template class name
- * @param bool $customEscape (default: false)
- * @param string $charset (default: 'UTF-8')
- *
- * @return string Generated PHP source code
- */
- public function compile($source, array $tree, $name, $customEscape = false, $charset = 'UTF-8')
- {
- $this->sections = array();
- $this->source = $source;
- $this->indentNextLine = true;
- $this->customEscape = $customEscape;
- $this->charset = $charset;
-
- return $this->writeCode($tree, $name);
- }
-
- /**
- * Helper function for walking the Mustache token parse tree.
- *
- * @throws InvalidArgumentException upon encountering unknown token types.
- *
- * @param array $tree Parse tree of Mustache tokens
- * @param int $level (default: 0)
- *
- * @return string Generated PHP source code
- */
- private function walk(array $tree, $level = 0)
- {
- $code = '';
- $level++;
- foreach ($tree as $node) {
- switch ($node[Mustache_Tokenizer::TYPE]) {
- case Mustache_Tokenizer::T_SECTION:
- $code .= $this->section(
- $node[Mustache_Tokenizer::NODES],
- $node[Mustache_Tokenizer::NAME],
- $node[Mustache_Tokenizer::INDEX],
- $node[Mustache_Tokenizer::END],
- $node[Mustache_Tokenizer::OTAG],
- $node[Mustache_Tokenizer::CTAG],
- $level
- );
- break;
-
- case Mustache_Tokenizer::T_INVERTED:
- $code .= $this->invertedSection(
- $node[Mustache_Tokenizer::NODES],
- $node[Mustache_Tokenizer::NAME],
- $level
- );
- break;
-
- case Mustache_Tokenizer::T_PARTIAL:
- case Mustache_Tokenizer::T_PARTIAL_2:
- $code .= $this->partial(
- $node[Mustache_Tokenizer::NAME],
- isset($node[Mustache_Tokenizer::INDENT]) ? $node[Mustache_Tokenizer::INDENT] : '',
- $level
- );
- break;
-
- case Mustache_Tokenizer::T_UNESCAPED:
- case Mustache_Tokenizer::T_UNESCAPED_2:
- $code .= $this->variable($node[Mustache_Tokenizer::NAME], false, $level);
- break;
-
- case Mustache_Tokenizer::T_COMMENT:
- break;
-
- case Mustache_Tokenizer::T_ESCAPED:
- $code .= $this->variable($node[Mustache_Tokenizer::NAME], true, $level);
- break;
-
- case Mustache_Tokenizer::T_TEXT:
- $code .= $this->text($node[Mustache_Tokenizer::VALUE], $level);
- break;
-
- default:
- throw new InvalidArgumentException('Unknown node type: '.json_encode($node));
- }
- }
-
- return $code;
- }
-
- const KLASS = '<?php
-
- class %s extends Mustache_Template
- {
- public function renderInternal(Mustache_Context $context, $indent = \'\', $escape = false)
- {
- $buffer = \'\';
- %s
-
- if ($escape) {
- return %s;
- } else {
- return $buffer;
- }
- }
- %s
- }';
-
- /**
- * Generate Mustache Template class PHP source.
- *
- * @param array $tree Parse tree of Mustache tokens
- * @param string $name Mustache Template class name
- *
- * @return string Generated PHP source code
- */
- private function writeCode($tree, $name)
- {
- $code = $this->walk($tree);
- $sections = implode("\n", $this->sections);
-
- return sprintf($this->prepare(self::KLASS, 0, false), $name, $code, $this->getEscape('$buffer'), $sections);
- }
-
- const SECTION_CALL = '
- // %s section
- $buffer .= $this->section%s($context, $indent, $context->%s(%s));
- ';
-
- const SECTION = '
- private function section%s(Mustache_Context $context, $indent, $value) {
- $buffer = \'\';
- if (!is_string($value) && is_callable($value)) {
- $source = %s;
- $buffer .= $this->mustache
- ->loadLambda((string) call_user_func($value, $source)%s)
- ->renderInternal($context, $indent);
- } elseif (!empty($value)) {
- $values = $this->isIterable($value) ? $value : array($value);
- foreach ($values as $value) {
- $context->push($value);%s
- $context->pop();
- }
- }
-
- return $buffer;
- }';
-
- /**
- * Generate Mustache Template section PHP source.
- *
- * @param array $nodes Array of child tokens
- * @param string $id Section name
- * @param int $start Section start offset
- * @param int $end Section end offset
- * @param string $otag Current Mustache opening tag
- * @param string $ctag Current Mustache closing tag
- * @param int $level
- *
- * @return string Generated section PHP source code
- */
- private function section($nodes, $id, $start, $end, $otag, $ctag, $level)
- {
- $method = $this->getFindMethod($id);
- $id = var_export($id, true);
- $source = var_export(substr($this->source, $start, $end - $start), true);
-
- if ($otag !== '{{' || $ctag !== '}}') {
- $delims = ', '.var_export(sprintf('{{= %s %s =}}', $otag, $ctag), true);
- } else {
- $delims = '';
- }
-
- $key = ucfirst(md5($delims."\n".$source));
-
- if (!isset($this->sections[$key])) {
- $this->sections[$key] = sprintf($this->prepare(self::SECTION), $key, $source, $delims, $this->walk($nodes, 2));
- }
-
- return sprintf($this->prepare(self::SECTION_CALL, $level), $id, $key, $method, $id);
- }
-
- const INVERTED_SECTION = '
- // %s inverted section
- $value = $context->%s(%s);
- if (empty($value)) {
- %s
- }';
-
- /**
- * Generate Mustache Template inverted section PHP source.
- *
- * @param array $nodes Array of child tokens
- * @param string $id Section name
- * @param int $level
- *
- * @return string Generated inverted section PHP source code
- */
- private function invertedSection($nodes, $id, $level)
- {
- $method = $this->getFindMethod($id);
- $id = var_export($id, true);
-
- return sprintf($this->prepare(self::INVERTED_SECTION, $level), $id, $method, $id, $this->walk($nodes, $level));
- }
-
- const PARTIAL = '
- if ($partial = $this->mustache->loadPartial(%s)) {
- $buffer .= $partial->renderInternal($context, %s);
- }
- ';
-
- /**
- * Generate Mustache Template partial call PHP source.
- *
- * @param string $id Partial name
- * @param string $indent Whitespace indent to apply to partial
- * @param int $level
- *
- * @return string Generated partial call PHP source code
- */
- private function partial($id, $indent, $level)
- {
- return sprintf(
- $this->prepare(self::PARTIAL, $level),
- var_export($id, true),
- var_export($indent, true)
- );
- }
-
- const VARIABLE = '
- $value = $context->%s(%s);
- if (!is_string($value) && is_callable($value)) {
- $value = $this->mustache
- ->loadLambda((string) call_user_func($value))
- ->renderInternal($context, $indent);
- }
- $buffer .= %s%s;
- ';
-
- /**
- * Generate Mustache Template variable interpolation PHP source.
- *
- * @param string $id Variable name
- * @param boolean $escape Escape the variable value for output?
- * @param int $level
- *
- * @return string Generated variable interpolation PHP source
- */
- private function variable($id, $escape, $level)
- {
- $method = $this->getFindMethod($id);
- $id = ($method !== 'last') ? var_export($id, true) : '';
- $value = $escape ? $this->getEscape() : '$value';
-
- return sprintf($this->prepare(self::VARIABLE, $level), $method, $id, $this->flushIndent(), $value);
- }
-
- const LINE = '$buffer .= "\n";';
- const TEXT = '$buffer .= %s%s;';
-
- /**
- * Generate Mustache Template output Buffer call PHP source.
- *
- * @param string $text
- * @param int $level
- *
- * @return string Generated output Buffer call PHP source
- */
- private function text($text, $level)
- {
- if ($text === "\n") {
- $this->indentNextLine = true;
-
- return $this->prepare(self::LINE, $level);
- } else {
- return sprintf($this->prepare(self::TEXT, $level), $this->flushIndent(), var_export($text, true));
- }
- }
-
- /**
- * Prepare PHP source code snippet for output.
- *
- * @param string $text
- * @param int $bonus Additional indent level (default: 0)
- * @param boolean $prependNewline Prepend a newline to the snippet? (default: true)
- *
- * @return string PHP source code snippet
- */
- private function prepare($text, $bonus = 0, $prependNewline = true)
- {
- $text = ($prependNewline ? "\n" : '').trim($text);
- if ($prependNewline) {
- $bonus++;
- }
-
- return preg_replace("/\n( {8})?/", "\n".str_repeat(" ", $bonus * 4), $text);
- }
-
- const DEFAULT_ESCAPE = 'htmlspecialchars(%s, ENT_COMPAT, %s)';
- const CUSTOM_ESCAPE = 'call_user_func($this->mustache->getEscape(), %s)';
-
- /**
- * Get the current escaper.
- *
- * @param string $value (default: '$value')
- *
- * @return string Either a custom callback, or an inline call to `htmlspecialchars`
- */
- private function getEscape($value = '$value')
- {
- if ($this->customEscape) {
- return sprintf(self::CUSTOM_ESCAPE, $value);
- } else {
- return sprintf(self::DEFAULT_ESCAPE, $value, var_export($this->charset, true));
- }
- }
-
- /**
- * Select the appropriate Context `find` method for a given $id.
- *
- * The return value will be one of `find`, `findDot` or `last`.
- *
- * @see Mustache_Context::find
- * @see Mustache_Context::findDot
- * @see Mustache_Context::last
- *
- * @param string $id Variable name
- *
- * @return string `find` method name
- */
- private function getFindMethod($id)
- {
- if ($id === '.') {
- return 'last';
- } elseif (strpos($id, '.') === false) {
- return 'find';
- } else {
- return 'findDot';
- }
- }
-
- const LINE_INDENT = '$indent . ';
-
- /**
- * Get the current $indent prefix to write to the buffer.
- *
- * @return string "$indent . " or ""
- */
- private function flushIndent()
- {
- if ($this->indentNextLine) {
- $this->indentNextLine = false;
-
- return self::LINE_INDENT;
- } else {
- return '';
- }
- }
-}
+<?php
+
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2010-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Mustache Compiler class.
+ *
+ * This class is responsible for turning a Mustache token parse tree into normal PHP source code.
+ */
+class Mustache_Compiler
+{
+ private $pragmas;
+ private $defaultPragmas = array();
+ private $sections;
+ private $blocks;
+ private $source;
+ private $indentNextLine;
+ private $customEscape;
+ private $entityFlags;
+ private $charset;
+ private $strictCallables;
+
+ /**
+ * Compile a Mustache token parse tree into PHP source code.
+ *
+ * @param string $source Mustache Template source code
+ * @param string $tree Parse tree of Mustache tokens
+ * @param string $name Mustache Template class name
+ * @param bool $customEscape (default: false)
+ * @param string $charset (default: 'UTF-8')
+ * @param bool $strictCallables (default: false)
+ * @param int $entityFlags (default: ENT_COMPAT)
+ *
+ * @return string Generated PHP source code
+ */
+ public function compile($source, array $tree, $name, $customEscape = false, $charset = 'UTF-8', $strictCallables = false, $entityFlags = ENT_COMPAT)
+ {
+ $this->pragmas = $this->defaultPragmas;
+ $this->sections = array();
+ $this->blocks = array();
+ $this->source = $source;
+ $this->indentNextLine = true;
+ $this->customEscape = $customEscape;
+ $this->entityFlags = $entityFlags;
+ $this->charset = $charset;
+ $this->strictCallables = $strictCallables;
+
+ return $this->writeCode($tree, $name);
+ }
+
+ /**
+ * Enable pragmas across all templates, regardless of the presence of pragma
+ * tags in the individual templates.
+ *
+ * @internal Users should set global pragmas in Mustache_Engine, not here :)
+ *
+ * @param string[] $pragmas
+ */
+ public function setPragmas(array $pragmas)
+ {
+ $this->pragmas = array();
+ foreach ($pragmas as $pragma) {
+ $this->pragmas[$pragma] = true;
+ }
+ $this->defaultPragmas = $this->pragmas;
+ }
+
+ /**
+ * Helper function for walking the Mustache token parse tree.
+ *
+ * @throws Mustache_Exception_SyntaxException upon encountering unknown token types
+ *
+ * @param array $tree Parse tree of Mustache tokens
+ * @param int $level (default: 0)
+ *
+ * @return string Generated PHP source code
+ */
+ private function walk(array $tree, $level = 0)
+ {
+ $code = '';
+ $level++;
+ foreach ($tree as $node) {
+ switch ($node[Mustache_Tokenizer::TYPE]) {
+ case Mustache_Tokenizer::T_PRAGMA:
+ $this->pragmas[$node[Mustache_Tokenizer::NAME]] = true;
+ break;
+
+ case Mustache_Tokenizer::T_SECTION:
+ $code .= $this->section(
+ $node[Mustache_Tokenizer::NODES],
+ $node[Mustache_Tokenizer::NAME],
+ isset($node[Mustache_Tokenizer::FILTERS]) ? $node[Mustache_Tokenizer::FILTERS] : array(),
+ $node[Mustache_Tokenizer::INDEX],
+ $node[Mustache_Tokenizer::END],
+ $node[Mustache_Tokenizer::OTAG],
+ $node[Mustache_Tokenizer::CTAG],
+ $level
+ );
+ break;
+
+ case Mustache_Tokenizer::T_INVERTED:
+ $code .= $this->invertedSection(
+ $node[Mustache_Tokenizer::NODES],
+ $node[Mustache_Tokenizer::NAME],
+ isset($node[Mustache_Tokenizer::FILTERS]) ? $node[Mustache_Tokenizer::FILTERS] : array(),
+ $level
+ );
+ break;
+
+ case Mustache_Tokenizer::T_PARTIAL:
+ $code .= $this->partial(
+ $node[Mustache_Tokenizer::NAME],
+ isset($node[Mustache_Tokenizer::DYNAMIC]) ? $node[Mustache_Tokenizer::DYNAMIC] : false,
+ isset($node[Mustache_Tokenizer::INDENT]) ? $node[Mustache_Tokenizer::INDENT] : '',
+ $level
+ );
+ break;
+
+ case Mustache_Tokenizer::T_PARENT:
+ $code .= $this->parent(
+ $node[Mustache_Tokenizer::NAME],
+ isset($node[Mustache_Tokenizer::DYNAMIC]) ? $node[Mustache_Tokenizer::DYNAMIC] : false,
+ isset($node[Mustache_Tokenizer::INDENT]) ? $node[Mustache_Tokenizer::INDENT] : '',
+ $node[Mustache_Tokenizer::NODES],
+ $level
+ );
+ break;
+
+ case Mustache_Tokenizer::T_BLOCK_ARG:
+ $code .= $this->blockArg(
+ $node[Mustache_Tokenizer::NODES],
+ $node[Mustache_Tokenizer::NAME],
+ $node[Mustache_Tokenizer::INDEX],
+ $node[Mustache_Tokenizer::END],
+ $node[Mustache_Tokenizer::OTAG],
+ $node[Mustache_Tokenizer::CTAG],
+ $level
+ );
+ break;
+
+ case Mustache_Tokenizer::T_BLOCK_VAR:
+ $code .= $this->blockVar(
+ $node[Mustache_Tokenizer::NODES],
+ $node[Mustache_Tokenizer::NAME],
+ $node[Mustache_Tokenizer::INDEX],
+ $node[Mustache_Tokenizer::END],
+ $node[Mustache_Tokenizer::OTAG],
+ $node[Mustache_Tokenizer::CTAG],
+ $level
+ );
+ break;
+
+ case Mustache_Tokenizer::T_COMMENT:
+ break;
+
+ case Mustache_Tokenizer::T_ESCAPED:
+ case Mustache_Tokenizer::T_UNESCAPED:
+ case Mustache_Tokenizer::T_UNESCAPED_2:
+ $code .= $this->variable(
+ $node[Mustache_Tokenizer::NAME],
+ isset($node[Mustache_Tokenizer::FILTERS]) ? $node[Mustache_Tokenizer::FILTERS] : array(),
+ $node[Mustache_Tokenizer::TYPE] === Mustache_Tokenizer::T_ESCAPED,
+ $level
+ );
+ break;
+
+ case Mustache_Tokenizer::T_TEXT:
+ $code .= $this->text($node[Mustache_Tokenizer::VALUE], $level);
+ break;
+
+ default:
+ throw new Mustache_Exception_SyntaxException(sprintf('Unknown token type: %s', $node[Mustache_Tokenizer::TYPE]), $node);
+ }
+ }
+
+ return $code;
+ }
+
+ const KLASS = '<?php
+
+ class %s extends Mustache_Template
+ {
+ private $lambdaHelper;%s
+
+ public function renderInternal(Mustache_Context $context, $indent = \'\')
+ {
+ $this->lambdaHelper = new Mustache_LambdaHelper($this->mustache, $context);
+ $buffer = \'\';
+ %s
+
+ return $buffer;
+ }
+ %s
+ %s
+ }';
+
+ const KLASS_NO_LAMBDAS = '<?php
+
+ class %s extends Mustache_Template
+ {%s
+ public function renderInternal(Mustache_Context $context, $indent = \'\')
+ {
+ $buffer = \'\';
+ %s
+
+ return $buffer;
+ }
+ }';
+
+ const STRICT_CALLABLE = 'protected $strictCallables = true;';
+
+ /**
+ * Generate Mustache Template class PHP source.
+ *
+ * @param array $tree Parse tree of Mustache tokens
+ * @param string $name Mustache Template class name
+ *
+ * @return string Generated PHP source code
+ */
+ private function writeCode($tree, $name)
+ {
+ $code = $this->walk($tree);
+ $sections = implode("\n", $this->sections);
+ $blocks = implode("\n", $this->blocks);
+ $klass = empty($this->sections) && empty($this->blocks) ? self::KLASS_NO_LAMBDAS : self::KLASS;
+
+ $callable = $this->strictCallables ? $this->prepare(self::STRICT_CALLABLE) : '';
+
+ return sprintf($this->prepare($klass, 0, false, true), $name, $callable, $code, $sections, $blocks);
+ }
+
+ const BLOCK_VAR = '
+ $blockFunction = $context->findInBlock(%s);
+ if (is_callable($blockFunction)) {
+ $buffer .= call_user_func($blockFunction, $context);
+ %s}
+ ';
+
+ const BLOCK_VAR_ELSE = '} else {%s';
+
+ /**
+ * Generate Mustache Template inheritance block variable PHP source.
+ *
+ * @param array $nodes Array of child tokens
+ * @param string $id Section name
+ * @param int $start Section start offset
+ * @param int $end Section end offset
+ * @param string $otag Current Mustache opening tag
+ * @param string $ctag Current Mustache closing tag
+ * @param int $level
+ *
+ * @return string Generated PHP source code
+ */
+ private function blockVar($nodes, $id, $start, $end, $otag, $ctag, $level)
+ {
+ $id = var_export($id, true);
+
+ $else = $this->walk($nodes, $level);
+ if ($else !== '') {
+ $else = sprintf($this->prepare(self::BLOCK_VAR_ELSE, $level + 1, false, true), $else);
+ }
+
+ return sprintf($this->prepare(self::BLOCK_VAR, $level), $id, $else);
+ }
+
+ const BLOCK_ARG = '%s => array($this, \'block%s\'),';
+
+ /**
+ * Generate Mustache Template inheritance block argument PHP source.
+ *
+ * @param array $nodes Array of child tokens
+ * @param string $id Section name
+ * @param int $start Section start offset
+ * @param int $end Section end offset
+ * @param string $otag Current Mustache opening tag
+ * @param string $ctag Current Mustache closing tag
+ * @param int $level
+ *
+ * @return string Generated PHP source code
+ */
+ private function blockArg($nodes, $id, $start, $end, $otag, $ctag, $level)
+ {
+ $key = $this->block($nodes);
+ $id = var_export($id, true);
+
+ return sprintf($this->prepare(self::BLOCK_ARG, $level), $id, $key);
+ }
+
+ const BLOCK_FUNCTION = '
+ public function block%s($context)
+ {
+ $indent = $buffer = \'\';%s
+
+ return $buffer;
+ }
+ ';
+
+ /**
+ * Generate Mustache Template inheritance block function PHP source.
+ *
+ * @param array $nodes Array of child tokens
+ *
+ * @return string key of new block function
+ */
+ private function block($nodes)
+ {
+ $code = $this->walk($nodes, 0);
+ $key = ucfirst(md5($code));
+
+ if (!isset($this->blocks[$key])) {
+ $this->blocks[$key] = sprintf($this->prepare(self::BLOCK_FUNCTION, 0), $key, $code);
+ }
+
+ return $key;
+ }
+
+ const SECTION_CALL = '
+ $value = $context->%s(%s);%s
+ $buffer .= $this->section%s($context, $indent, $value);
+ ';
+
+ const SECTION = '
+ private function section%s(Mustache_Context $context, $indent, $value)
+ {
+ $buffer = \'\';
+
+ if (%s) {
+ $source = %s;
+ $result = (string) call_user_func($value, $source, %s);
+ if (strpos($result, \'{{\') === false) {
+ $buffer .= $result;
+ } else {
+ $buffer .= $this->mustache
+ ->loadLambda($result%s)
+ ->renderInternal($context);
+ }
+ } elseif (!empty($value)) {
+ $values = $this->isIterable($value) ? $value : array($value);
+ foreach ($values as $value) {
+ $context->push($value);
+ %s
+ $context->pop();
+ }
+ }
+
+ return $buffer;
+ }
+ ';
+
+ /**
+ * Generate Mustache Template section PHP source.
+ *
+ * @param array $nodes Array of child tokens
+ * @param string $id Section name
+ * @param string[] $filters Array of filters
+ * @param int $start Section start offset
+ * @param int $end Section end offset
+ * @param string $otag Current Mustache opening tag
+ * @param string $ctag Current Mustache closing tag
+ * @param int $level
+ *
+ * @return string Generated section PHP source code
+ */
+ private function section($nodes, $id, $filters, $start, $end, $otag, $ctag, $level)
+ {
+ $source = var_export(substr($this->source, $start, $end - $start), true);
+ $callable = $this->getCallable();
+
+ if ($otag !== '{{' || $ctag !== '}}') {
+ $delimTag = var_export(sprintf('{{= %s %s =}}', $otag, $ctag), true);
+ $helper = sprintf('$this->lambdaHelper->withDelimiters(%s)', $delimTag);
+ $delims = ', ' . $delimTag;
+ } else {
+ $helper = '$this->lambdaHelper';
+ $delims = '';
+ }
+
+ $key = ucfirst(md5($delims . "\n" . $source));
+
+ if (!isset($this->sections[$key])) {
+ $this->sections[$key] = sprintf($this->prepare(self::SECTION), $key, $callable, $source, $helper, $delims, $this->walk($nodes, 2));
+ }
+
+ $method = $this->getFindMethod($id);
+ $id = var_export($id, true);
+ $filters = $this->getFilters($filters, $level);
+
+ return sprintf($this->prepare(self::SECTION_CALL, $level), $method, $id, $filters, $key);
+ }
+
+ const INVERTED_SECTION = '
+ $value = $context->%s(%s);%s
+ if (empty($value)) {
+ %s
+ }
+ ';
+
+ /**
+ * Generate Mustache Template inverted section PHP source.
+ *
+ * @param array $nodes Array of child tokens
+ * @param string $id Section name
+ * @param string[] $filters Array of filters
+ * @param int $level
+ *
+ * @return string Generated inverted section PHP source code
+ */
+ private function invertedSection($nodes, $id, $filters, $level)
+ {
+ $method = $this->getFindMethod($id);
+ $id = var_export($id, true);
+ $filters = $this->getFilters($filters, $level);
+
+ return sprintf($this->prepare(self::INVERTED_SECTION, $level), $method, $id, $filters, $this->walk($nodes, $level));
+ }
+
+ const DYNAMIC_NAME = '$this->resolveValue($context->%s(%s), $context)';
+
+ /**
+ * Generate Mustache Template dynamic name resolution PHP source.
+ *
+ * @param string $id Tag name
+ * @param bool $dynamic True if the name is dynamic
+ *
+ * @return string Dynamic name resolution PHP source code
+ */
+ private function resolveDynamicName($id, $dynamic)
+ {
+ if (!$dynamic) {
+ return var_export($id, true);
+ }
+
+ $method = $this->getFindMethod($id);
+ $id = ($method !== 'last') ? var_export($id, true) : '';
+
+ // TODO: filters?
+
+ return sprintf(self::DYNAMIC_NAME, $method, $id);
+ }
+
+ const PARTIAL_INDENT = ', $indent . %s';
+ const PARTIAL = '
+ if ($partial = $this->mustache->loadPartial(%s)) {
+ $buffer .= $partial->renderInternal($context%s);
+ }
+ ';
+
+ /**
+ * Generate Mustache Template partial call PHP source.
+ *
+ * @param string $id Partial name
+ * @param bool $dynamic Partial name is dynamic
+ * @param string $indent Whitespace indent to apply to partial
+ * @param int $level
+ *
+ * @return string Generated partial call PHP source code
+ */
+ private function partial($id, $dynamic, $indent, $level)
+ {
+ if ($indent !== '') {
+ $indentParam = sprintf(self::PARTIAL_INDENT, var_export($indent, true));
+ } else {
+ $indentParam = '';
+ }
+
+ return sprintf(
+ $this->prepare(self::PARTIAL, $level),
+ $this->resolveDynamicName($id, $dynamic),
+ $indentParam
+ );
+ }
+
+ const PARENT = '
+ if ($parent = $this->mustache->loadPartial(%s)) {
+ $context->pushBlockContext(array(%s
+ ));
+ $buffer .= $parent->renderInternal($context, $indent);
+ $context->popBlockContext();
+ }
+ ';
+
+ const PARENT_NO_CONTEXT = '
+ if ($parent = $this->mustache->loadPartial(%s)) {
+ $buffer .= $parent->renderInternal($context, $indent);
+ }
+ ';
+
+ /**
+ * Generate Mustache Template inheritance parent call PHP source.
+ *
+ * @param string $id Parent tag name
+ * @param bool $dynamic Tag name is dynamic
+ * @param string $indent Whitespace indent to apply to parent
+ * @param array $children Child nodes
+ * @param int $level
+ *
+ * @return string Generated PHP source code
+ */
+ private function parent($id, $dynamic, $indent, array $children, $level)
+ {
+ $realChildren = array_filter($children, array(__CLASS__, 'onlyBlockArgs'));
+ $partialName = $this->resolveDynamicName($id, $dynamic);
+
+ if (empty($realChildren)) {
+ return sprintf($this->prepare(self::PARENT_NO_CONTEXT, $level), $partialName);
+ }
+
+ return sprintf(
+ $this->prepare(self::PARENT, $level),
+ $partialName,
+ $this->walk($realChildren, $level + 1)
+ );
+ }
+
+ /**
+ * Helper method for filtering out non-block-arg tokens.
+ *
+ * @param array $node
+ *
+ * @return bool True if $node is a block arg token
+ */
+ private static function onlyBlockArgs(array $node)
+ {
+ return $node[Mustache_Tokenizer::TYPE] === Mustache_Tokenizer::T_BLOCK_ARG;
+ }
+
+ const VARIABLE = '
+ $value = $this->resolveValue($context->%s(%s), $context);%s
+ $buffer .= %s($value === null ? \'\' : %s);
+ ';
+
+ /**
+ * Generate Mustache Template variable interpolation PHP source.
+ *
+ * @param string $id Variable name
+ * @param string[] $filters Array of filters
+ * @param bool $escape Escape the variable value for output?
+ * @param int $level
+ *
+ * @return string Generated variable interpolation PHP source
+ */
+ private function variable($id, $filters, $escape, $level)
+ {
+ $method = $this->getFindMethod($id);
+ $id = ($method !== 'last') ? var_export($id, true) : '';
+ $filters = $this->getFilters($filters, $level);
+ $value = $escape ? $this->getEscape() : '$value';
+
+ return sprintf($this->prepare(self::VARIABLE, $level), $method, $id, $filters, $this->flushIndent(), $value);
+ }
+
+ const FILTER = '
+ $filter = $context->%s(%s);
+ if (!(%s)) {
+ throw new Mustache_Exception_UnknownFilterException(%s);
+ }
+ $value = call_user_func($filter, $value);%s
+ ';
+
+ /**
+ * Generate Mustache Template variable filtering PHP source.
+ *
+ * @param string[] $filters Array of filters
+ * @param int $level
+ *
+ * @return string Generated filter PHP source
+ */
+ private function getFilters(array $filters, $level)
+ {
+ if (empty($filters)) {
+ return '';
+ }
+
+ $name = array_shift($filters);
+ $method = $this->getFindMethod($name);
+ $filter = ($method !== 'last') ? var_export($name, true) : '';
+ $callable = $this->getCallable('$filter');
+ $msg = var_export($name, true);
+
+ return sprintf($this->prepare(self::FILTER, $level), $method, $filter, $callable, $msg, $this->getFilters($filters, $level));
+ }
+
+ const LINE = '$buffer .= "\n";';
+ const TEXT = '$buffer .= %s%s;';
+
+ /**
+ * Generate Mustache Template output Buffer call PHP source.
+ *
+ * @param string $text
+ * @param int $level
+ *
+ * @return string Generated output Buffer call PHP source
+ */
+ private function text($text, $level)
+ {
+ $indentNextLine = (substr($text, -1) === "\n");
+ $code = sprintf($this->prepare(self::TEXT, $level), $this->flushIndent(), var_export($text, true));
+ $this->indentNextLine = $indentNextLine;
+
+ return $code;
+ }
+
+ /**
+ * Prepare PHP source code snippet for output.
+ *
+ * @param string $text
+ * @param int $bonus Additional indent level (default: 0)
+ * @param bool $prependNewline Prepend a newline to the snippet? (default: true)
+ * @param bool $appendNewline Append a newline to the snippet? (default: false)
+ *
+ * @return string PHP source code snippet
+ */
+ private function prepare($text, $bonus = 0, $prependNewline = true, $appendNewline = false)
+ {
+ $text = ($prependNewline ? "\n" : '') . trim($text);
+ if ($prependNewline) {
+ $bonus++;
+ }
+ if ($appendNewline) {
+ $text .= "\n";
+ }
+
+ return preg_replace("/\n( {8})?/", "\n" . str_repeat(' ', $bonus * 4), $text);
+ }
+
+ const DEFAULT_ESCAPE = 'htmlspecialchars(%s, %s, %s)';
+ const CUSTOM_ESCAPE = 'call_user_func($this->mustache->getEscape(), %s)';
+
+ /**
+ * Get the current escaper.
+ *
+ * @param string $value (default: '$value')
+ *
+ * @return string Either a custom callback, or an inline call to `htmlspecialchars`
+ */
+ private function getEscape($value = '$value')
+ {
+ if ($this->customEscape) {
+ return sprintf(self::CUSTOM_ESCAPE, $value);
+ }
+
+ return sprintf(self::DEFAULT_ESCAPE, $value, var_export($this->entityFlags, true), var_export($this->charset, true));
+ }
+
+ /**
+ * Select the appropriate Context `find` method for a given $id.
+ *
+ * The return value will be one of `find`, `findDot`, `findAnchoredDot` or `last`.
+ *
+ * @see Mustache_Context::find
+ * @see Mustache_Context::findDot
+ * @see Mustache_Context::last
+ *
+ * @param string $id Variable name
+ *
+ * @return string `find` method name
+ */
+ private function getFindMethod($id)
+ {
+ if ($id === '.') {
+ return 'last';
+ }
+
+ if (isset($this->pragmas[Mustache_Engine::PRAGMA_ANCHORED_DOT]) && $this->pragmas[Mustache_Engine::PRAGMA_ANCHORED_DOT]) {
+ if (substr($id, 0, 1) === '.') {
+ return 'findAnchoredDot';
+ }
+ }
+
+ if (strpos($id, '.') === false) {
+ return 'find';
+ }
+
+ return 'findDot';
+ }
+
+ const IS_CALLABLE = '!is_string(%s) && is_callable(%s)';
+ const STRICT_IS_CALLABLE = 'is_object(%s) && is_callable(%s)';
+
+ /**
+ * Helper function to compile strict vs lax "is callable" logic.
+ *
+ * @param string $variable (default: '$value')
+ *
+ * @return string "is callable" logic
+ */
+ private function getCallable($variable = '$value')
+ {
+ $tpl = $this->strictCallables ? self::STRICT_IS_CALLABLE : self::IS_CALLABLE;
+
+ return sprintf($tpl, $variable, $variable);
+ }
+
+ const LINE_INDENT = '$indent . ';
+
+ /**
+ * Get the current $indent prefix to write to the buffer.
+ *
+ * @return string "$indent . " or ""
+ */
+ private function flushIndent()
+ {
+ if (!$this->indentNextLine) {
+ return '';
+ }
+
+ $this->indentNextLine = false;
+
+ return self::LINE_INDENT;
+ }
+}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-11-21 13:39:03 +0100