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Merge pull request #18 from WildPHP/beta
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Original file line number | Diff line number | Diff line change |
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@@ -1,8 +1,8 @@ | ||
*.log | ||
Documentation/* | ||
log/* | ||
.log | ||
.buildpath | ||
.project | ||
.settings/ | ||
config.local.php | ||
config.neon | ||
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.idea |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,326 @@ | ||
<?php | ||
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/** | ||
* This file is part of the Nette Framework (http://nette.org) | ||
* Copyright (c) 2004 David Grudl (http://davidgrudl.com) | ||
*/ | ||
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namespace Nette\Neon; | ||
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use Nette; | ||
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/** | ||
* Parser for Nette Object Notation. | ||
* | ||
* @author David Grudl | ||
* @internal | ||
*/ | ||
class Decoder | ||
{ | ||
/** @var array */ | ||
public static $patterns = array( | ||
' | ||
\'[^\'\n]*\' | | ||
"(?: \\\\. | [^"\\\\\n] )*" | ||
', // string | ||
' | ||
(?: [^#"\',:=[\]{}()\x00-\x20!`-] | [:-][^"\',\]})\s] ) | ||
(?: | ||
[^,:=\]})(\x00-\x20]+ | | ||
:(?! [\s,\]})] | $ ) | | ||
[\ \t]+ [^#,:=\]})(\x00-\x20] | ||
)* | ||
', // literal / boolean / integer / float | ||
' | ||
[,:=[\]{}()-] | ||
', // symbol | ||
'?:\#.*', // comment | ||
'\n[\t\ ]*', // new line + indent | ||
'?:[\t\ ]+', // whitespace | ||
); | ||
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private static $brackets = array( | ||
'[' => ']', | ||
'{' => '}', | ||
'(' => ')', | ||
); | ||
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/** @var string */ | ||
private $input; | ||
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/** @var array */ | ||
private $tokens; | ||
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/** @var int */ | ||
private $pos; | ||
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/** | ||
* Decodes a NEON string. | ||
* @param string | ||
* @return mixed | ||
*/ | ||
public function decode($input) | ||
{ | ||
if (!is_string($input)) { | ||
throw new \InvalidArgumentException(sprintf('Argument must be a string, %s given.', gettype($input))); | ||
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} elseif (substr($input, 0, 3) === "\xEF\xBB\xBF") { // BOM | ||
$input = substr($input, 3); | ||
} | ||
$this->input = "\n" . str_replace("\r", '', $input); // \n forces indent detection | ||
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$pattern = '~(' . implode(')|(', self::$patterns) . ')~Amix'; | ||
$this->tokens = preg_split($pattern, $this->input, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE | PREG_SPLIT_DELIM_CAPTURE); | ||
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$last = end($this->tokens); | ||
if ($this->tokens && !preg_match($pattern, $last[0])) { | ||
$this->pos = count($this->tokens) - 1; | ||
$this->error(); | ||
} | ||
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$this->pos = 0; | ||
$res = $this->parse(NULL); | ||
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while (isset($this->tokens[$this->pos])) { | ||
if ($this->tokens[$this->pos][0][0] === "\n") { | ||
$this->pos++; | ||
} else { | ||
$this->error(); | ||
} | ||
} | ||
return $res; | ||
} | ||
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/** | ||
* @param string indentation (for block-parser) | ||
* @param mixed | ||
* @return array | ||
*/ | ||
private function parse($indent, $result = NULL, $key = NULL, $hasKey = FALSE) | ||
{ | ||
$inlineParser = $indent === FALSE; | ||
$value = NULL; | ||
$hasValue = FALSE; | ||
$tokens = $this->tokens; | ||
$n = & $this->pos; | ||
$count = count($tokens); | ||
$mainResult = & $result; | ||
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for (; $n < $count; $n++) { | ||
$t = $tokens[$n][0]; | ||
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if ($t === ',') { // ArrayEntry separator | ||
if ((!$hasKey && !$hasValue) || !$inlineParser) { | ||
$this->error(); | ||
} | ||
$this->addValue($result, $hasKey, $key, $hasValue ? $value : NULL); | ||
$hasKey = $hasValue = FALSE; | ||
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} elseif ($t === ':' || $t === '=') { // KeyValuePair separator | ||
if ($hasValue && (is_array($value) || is_object($value))) { | ||
$this->error('Unacceptable key'); | ||
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} elseif ($hasKey && $key === NULL && $hasValue && !$inlineParser) { | ||
$n++; | ||
$result[] = $this->parse($indent . ' ', array(), $value, TRUE); | ||
$newIndent = isset($tokens[$n], $tokens[$n+1]) ? (string) substr($tokens[$n][0], 1) : ''; // not last | ||
if (strlen($newIndent) > strlen($indent)) { | ||
$n++; | ||
$this->error('Bad indentation'); | ||
} elseif (strlen($newIndent) < strlen($indent)) { | ||
return $mainResult; // block parser exit point | ||
} | ||
$hasKey = $hasValue = FALSE; | ||
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} elseif ($hasKey || !$hasValue) { | ||
$this->error(); | ||
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} else { | ||
$key = (string) $value; | ||
$hasKey = TRUE; | ||
$hasValue = FALSE; | ||
$result = & $mainResult; | ||
} | ||
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} elseif ($t === '-') { // BlockArray bullet | ||
if ($hasKey || $hasValue || $inlineParser) { | ||
$this->error(); | ||
} | ||
$key = NULL; | ||
$hasKey = TRUE; | ||
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} elseif (isset(self::$brackets[$t])) { // Opening bracket [ ( { | ||
if ($hasValue) { | ||
if ($t !== '(') { | ||
$this->error(); | ||
} | ||
$n++; | ||
$value = new Entity($value, $this->parse(FALSE, array())); | ||
} else { | ||
$n++; | ||
$value = $this->parse(FALSE, array()); | ||
} | ||
$hasValue = TRUE; | ||
if (!isset($tokens[$n]) || $tokens[$n][0] !== self::$brackets[$t]) { // unexpected type of bracket or block-parser | ||
$this->error(); | ||
} | ||
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} elseif ($t === ']' || $t === '}' || $t === ')') { // Closing bracket ] ) } | ||
if (!$inlineParser) { | ||
$this->error(); | ||
} | ||
break; | ||
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} elseif ($t[0] === "\n") { // Indent | ||
if ($inlineParser) { | ||
if ($hasKey || $hasValue) { | ||
$this->addValue($result, $hasKey, $key, $hasValue ? $value : NULL); | ||
$hasKey = $hasValue = FALSE; | ||
} | ||
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} else { | ||
while (isset($tokens[$n+1]) && $tokens[$n+1][0][0] === "\n") { | ||
$n++; // skip to last indent | ||
} | ||
if (!isset($tokens[$n+1])) { | ||
break; | ||
} | ||
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$newIndent = (string) substr($tokens[$n][0], 1); | ||
if ($indent === NULL) { // first iteration | ||
$indent = $newIndent; | ||
} | ||
$minlen = min(strlen($newIndent), strlen($indent)); | ||
if ($minlen && (string) substr($newIndent, 0, $minlen) !== (string) substr($indent, 0, $minlen)) { | ||
$n++; | ||
$this->error('Invalid combination of tabs and spaces'); | ||
} | ||
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if (strlen($newIndent) > strlen($indent)) { // open new block-array or hash | ||
if ($hasValue || !$hasKey) { | ||
$n++; | ||
$this->error('Bad indentation'); | ||
} | ||
$this->addValue($result, $key !== NULL, $key, $this->parse($newIndent)); | ||
$newIndent = isset($tokens[$n], $tokens[$n+1]) ? (string) substr($tokens[$n][0], 1) : ''; // not last | ||
if (strlen($newIndent) > strlen($indent)) { | ||
$n++; | ||
$this->error('Bad indentation'); | ||
} | ||
$hasKey = FALSE; | ||
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} else { | ||
if ($hasValue && !$hasKey) { // block items must have "key"; NULL key means list item | ||
break; | ||
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} elseif ($hasKey) { | ||
$this->addValue($result, $key !== NULL, $key, $hasValue ? $value : NULL); | ||
if ($key !== NULL && !$hasValue && $newIndent === $indent && isset($tokens[$n + 1]) && $tokens[$n + 1][0] === '-') { | ||
$result = & $result[$key]; | ||
} | ||
$hasKey = $hasValue = FALSE; | ||
} | ||
} | ||
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if (strlen($newIndent) < strlen($indent)) { // close block | ||
return $mainResult; // block parser exit point | ||
} | ||
} | ||
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} else { // Value | ||
if ($hasValue) { | ||
$this->error(); | ||
} | ||
static $consts = array( | ||
'true' => TRUE, 'True' => TRUE, 'TRUE' => TRUE, 'yes' => TRUE, 'Yes' => TRUE, 'YES' => TRUE, 'on' => TRUE, 'On' => TRUE, 'ON' => TRUE, | ||
'false' => FALSE, 'False' => FALSE, 'FALSE' => FALSE, 'no' => FALSE, 'No' => FALSE, 'NO' => FALSE, 'off' => FALSE, 'Off' => FALSE, 'OFF' => FALSE, | ||
); | ||
if ($t[0] === '"') { | ||
$value = preg_replace_callback('#\\\\(?:ud[89ab][0-9a-f]{2}\\\\ud[c-f][0-9a-f]{2}|u[0-9a-f]{4}|x[0-9a-f]{2}|.)#i', array($this, 'cbString'), substr($t, 1, -1)); | ||
} elseif ($t[0] === "'") { | ||
$value = substr($t, 1, -1); | ||
} elseif (isset($consts[$t]) && (!isset($tokens[$n+1][0]) || ($tokens[$n+1][0] !== ':' && $tokens[$n+1][0] !== '='))) { | ||
$value = $consts[$t]; | ||
} elseif ($t === 'null' || $t === 'Null' || $t === 'NULL') { | ||
$value = NULL; | ||
} elseif (is_numeric($t)) { | ||
$value = $t * 1; | ||
} elseif (preg_match('#\d\d\d\d-\d\d?-\d\d?(?:(?:[Tt]| +)\d\d?:\d\d:\d\d(?:\.\d*)? *(?:Z|[-+]\d\d?(?::\d\d)?)?)?\z#A', $t)) { | ||
$value = new \DateTime($t); | ||
} else { // literal | ||
$value = $t; | ||
} | ||
$hasValue = TRUE; | ||
} | ||
} | ||
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if ($inlineParser) { | ||
if ($hasKey || $hasValue) { | ||
$this->addValue($result, $hasKey, $key, $hasValue ? $value : NULL); | ||
} | ||
} else { | ||
if ($hasValue && !$hasKey) { // block items must have "key" | ||
if ($result === NULL) { | ||
$result = $value; // simple value parser | ||
} else { | ||
$this->error(); | ||
} | ||
} elseif ($hasKey) { | ||
$this->addValue($result, $key !== NULL, $key, $hasValue ? $value : NULL); | ||
} | ||
} | ||
return $mainResult; | ||
} | ||
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private function addValue(& $result, $hasKey, $key, $value) | ||
{ | ||
if ($hasKey) { | ||
if ($result && array_key_exists($key, $result)) { | ||
$this->error("Duplicated key '$key'"); | ||
} | ||
$result[$key] = $value; | ||
} else { | ||
$result[] = $value; | ||
} | ||
} | ||
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private function cbString($m) | ||
{ | ||
static $mapping = array('t' => "\t", 'n' => "\n", 'r' => "\r", 'f' => "\x0C", 'b' => "\x08", '"' => '"', '\\' => '\\', '/' => '/', '_' => "\xc2\xa0"); | ||
$sq = $m[0]; | ||
if (isset($mapping[$sq[1]])) { | ||
return $mapping[$sq[1]]; | ||
} elseif ($sq[1] === 'u' && strlen($sq) >= 6) { | ||
$lead = hexdec(substr($sq, 2, 4)); | ||
$tail = hexdec(substr($sq, 8, 4)); | ||
$code = $tail ? (0x2400 + (($lead - 0xD800) << 10) + $tail) : $lead; | ||
if ($code >= 0xD800 && $code <= 0xDFFF) { | ||
$this->error("Invalid UTF-8 (lone surrogate) $sq"); | ||
} | ||
return iconv('UTF-32BE', 'UTF-8//IGNORE', pack('N', $code)); | ||
} elseif ($sq[1] === 'x' && strlen($sq) === 4) { | ||
return chr(hexdec(substr($sq, 2))); | ||
} else { | ||
$this->error("Invalid escaping sequence $sq"); | ||
} | ||
} | ||
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private function error($message = "Unexpected '%s'") | ||
{ | ||
$last = isset($this->tokens[$this->pos]) ? $this->tokens[$this->pos] : NULL; | ||
$offset = $last ? $last[1] : strlen($this->input); | ||
$text = substr($this->input, 0, $offset); | ||
$line = substr_count($text, "\n"); | ||
$col = $offset - strrpos("\n" . $text, "\n") + 1; | ||
$token = $last ? str_replace("\n", '<new line>', substr($last[0], 0, 40)) : 'end'; | ||
throw new Exception(str_replace('%s', $token, $message) . " on line $line, column $col."); | ||
} | ||
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} |
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