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diff --git a/externals/jsonlint/LICENSE b/externals/jsonlint/LICENSE
new file mode 100644
--- /dev/null
+++ b/externals/jsonlint/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2011 Jordi Boggiano
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/externals/jsonlint/src/Seld/JsonLint/JsonParser.php b/externals/jsonlint/src/Seld/JsonLint/JsonParser.php
new file mode 100644
--- /dev/null
+++ b/externals/jsonlint/src/Seld/JsonLint/JsonParser.php
@@ -0,0 +1,460 @@
+<?php
+
+/*
+ * This file is part of the JSON Lint package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Parser class
+ *
+ * Example:
+ *
+ * $parser = new JsonParser();
+ * // returns null if it's valid json, or an error object
+ * $parser->lint($json);
+ * // returns parsed json, like json_decode does, but slower, throws exceptions on failure.
+ * $parser->parse($json);
+ *
+ * Ported from https://github.com/zaach/jsonlint
+ */
+class JsonLintJsonParser
+{
+ const DETECT_KEY_CONFLICTS = 1;
+ const ALLOW_DUPLICATE_KEYS = 2;
+
+ private $flags;
+ private $stack;
+ private $vstack; // semantic value stack
+ private $lstack; // location stack
+
+ private $yy;
+ private $symbols = array(
+ 'error' => 2,
+ 'JSONString' => 3,
+ 'STRING' => 4,
+ 'JSONNumber' => 5,
+ 'NUMBER' => 6,
+ 'JSONNullLiteral' => 7,
+ 'NULL' => 8,
+ 'JSONBooleanLiteral' => 9,
+ 'TRUE' => 10,
+ 'FALSE' => 11,
+ 'JSONText' => 12,
+ 'JSONValue' => 13,
+ 'EOF' => 14,
+ 'JSONObject' => 15,
+ 'JSONArray' => 16,
+ '{' => 17,
+ '}' => 18,
+ 'JSONMemberList' => 19,
+ 'JSONMember' => 20,
+ ':' => 21,
+ ',' => 22,
+ '[' => 23,
+ ']' => 24,
+ 'JSONElementList' => 25,
+ '$accept' => 0,
+ '$end' => 1,
+ );
+
+ private $terminals_ = array(
+ 2 => "error",
+ 4 => "STRING",
+ 6 => "NUMBER",
+ 8 => "NULL",
+ 10 => "TRUE",
+ 11 => "FALSE",
+ 14 => "EOF",
+ 17 => "{",
+ 18 => "}",
+ 21 => ":",
+ 22 => ",",
+ 23 => "[",
+ 24 => "]",
+ );
+
+ private $productions_ = array(
+ 0,
+ array(3, 1),
+ array(5, 1),
+ array(7, 1),
+ array(9, 1),
+ array(9, 1),
+ array(12, 2),
+ array(13, 1),
+ array(13, 1),
+ array(13, 1),
+ array(13, 1),
+ array(13, 1),
+ array(13, 1),
+ array(15, 2),
+ array(15, 3),
+ array(20, 3),
+ array(19, 1),
+ array(19, 3),
+ array(16, 2),
+ array(16, 3),
+ array(25, 1),
+ array(25, 3)
+ );
+
+ private $table = array(array(3 => 5, 4 => array(1,12), 5 => 6, 6 => array(1,13), 7 => 3, 8 => array(1,9), 9 => 4, 10 => array(1,10), 11 => array(1,11), 12 => 1, 13 => 2, 15 => 7, 16 => 8, 17 => array(1,14), 23 => array(1,15)), array( 1 => array(3)), array( 14 => array(1,16)), array( 14 => array(2,7), 18 => array(2,7), 22 => array(2,7), 24 => array(2,7)), array( 14 => array(2,8), 18 => array(2,8), 22 => array(2,8), 24 => array(2,8)), array( 14 => array(2,9), 18 => array(2,9), 22 => array(2,9), 24 => array(2,9)), array( 14 => array(2,10), 18 => array(2,10), 22 => array(2,10), 24 => array(2,10)), array( 14 => array(2,11), 18 => array(2,11), 22 => array(2,11), 24 => array(2,11)), array( 14 => array(2,12), 18 => array(2,12), 22 => array(2,12), 24 => array(2,12)), array( 14 => array(2,3), 18 => array(2,3), 22 => array(2,3), 24 => array(2,3)), array( 14 => array(2,4), 18 => array(2,4), 22 => array(2,4), 24 => array(2,4)), array( 14 => array(2,5), 18 => array(2,5), 22 => array(2,5), 24 => array(2,5)), array( 14 => array(2,1), 18 => array(2,1), 21 => array(2,1), 22 => array(2,1), 24 => array(2,1)), array( 14 => array(2,2), 18 => array(2,2), 22 => array(2,2), 24 => array(2,2)), array( 3 => 20, 4 => array(1,12), 18 => array(1,17), 19 => 18, 20 => 19 ), array( 3 => 5, 4 => array(1,12), 5 => 6, 6 => array(1,13), 7 => 3, 8 => array(1,9), 9 => 4, 10 => array(1,10), 11 => array(1,11), 13 => 23, 15 => 7, 16 => 8, 17 => array(1,14), 23 => array(1,15), 24 => array(1,21), 25 => 22 ), array( 1 => array(2,6)), array( 14 => array(2,13), 18 => array(2,13), 22 => array(2,13), 24 => array(2,13)), array( 18 => array(1,24), 22 => array(1,25)), array( 18 => array(2,16), 22 => array(2,16)), array( 21 => array(1,26)), array( 14 => array(2,18), 18 => array(2,18), 22 => array(2,18), 24 => array(2,18)), array( 22 => array(1,28), 24 => array(1,27)), array( 22 => array(2,20), 24 => array(2,20)), array( 14 => array(2,14), 18 => array(2,14), 22 => array(2,14), 24 => array(2,14)), array( 3 => 20, 4 => array(1,12), 20 => 29 ), array( 3 => 5, 4 => array(1,12), 5 => 6, 6 => array(1,13), 7 => 3, 8 => array(1,9), 9 => 4, 10 => array(1,10), 11 => array(1,11), 13 => 30, 15 => 7, 16 => 8, 17 => array(1,14), 23 => array(1,15)), array( 14 => array(2,19), 18 => array(2,19), 22 => array(2,19), 24 => array(2,19)), array( 3 => 5, 4 => array(1,12), 5 => 6, 6 => array(1,13), 7 => 3, 8 => array(1,9), 9 => 4, 10 => array(1,10), 11 => array(1,11), 13 => 31, 15 => 7, 16 => 8, 17 => array(1,14), 23 => array(1,15)), array( 18 => array(2,17), 22 => array(2,17)), array( 18 => array(2,15), 22 => array(2,15)), array( 22 => array(2,21), 24 => array(2,21)),
+ );
+
+ private $defaultActions = array(
+ 16 => array(2, 6)
+ );
+
+ /**
+ * @param string $input JSON string
+ * @return null|JsonLintParsingException null if no error is found, a JsonLintParsingException containing all details otherwise
+ */
+ public function lint($input)
+ {
+ try {
+ $this->parse($input);
+ } catch (JsonLintParsingException $e) {
+ return $e;
+ }
+ }
+
+ /**
+ * @param string $input JSON string
+ * @return mixed
+ * @throws JsonLintParsingException
+ */
+ public function parse($input, $flags = 0)
+ {
+ $this->failOnBOM($input);
+
+ $this->flags = $flags;
+
+ $this->stack = array(0);
+ $this->vstack = array(null);
+ $this->lstack = array();
+
+ $yytext = '';
+ $yylineno = 0;
+ $yyleng = 0;
+ $recovering = 0;
+ $TERROR = 2;
+ $EOF = 1;
+
+ $this->lexer = new JsonLintLexer();
+ $this->lexer->setInput($input);
+
+ $yyloc = $this->lexer->yylloc;
+ $this->lstack[] = $yyloc;
+
+ $symbol = null;
+ $preErrorSymbol = null;
+ $state = null;
+ $action = null;
+ $a = null;
+ $r = null;
+ $yyval = new stdClass;
+ $p = null;
+ $len = null;
+ $newState = null;
+ $expected = null;
+ $errStr = null;
+
+ while (true) {
+ // retreive state number from top of stack
+ $state = $this->stack[count($this->stack)-1];
+
+ // use default actions if available
+ if (isset($this->defaultActions[$state])) {
+ $action = $this->defaultActions[$state];
+ } else {
+ if ($symbol == null) {
+ $symbol = $this->lex();
+ }
+ // read action for current state and first input
+ $action = isset($this->table[$state][$symbol]) ? $this->table[$state][$symbol] : false;
+ }
+
+ // handle parse error
+ if (!$action || !$action[0]) {
+ if (!$recovering) {
+ // Report error
+ $expected = array();
+ foreach ($this->table[$state] as $p => $ignore) {
+ if (isset($this->terminals_[$p]) && $p > 2) {
+ $expected[] = "'" . $this->terminals_[$p] . "'";
+ }
+ }
+
+ $message = null;
+ if (in_array("'STRING'", $expected) && in_array(substr($this->lexer->match, 0, 1), array('"', "'"))) {
+ $message = "Invalid string";
+ if ("'" === substr($this->lexer->match, 0, 1)) {
+ $message .= ", it appears you used single quotes instead of double quotes";
+ } elseif (preg_match('{".+?(\\\\[^"bfnrt/\\\\u])}', $this->lexer->getUpcomingInput(), $match)) {
+ $message .= ", it appears you have an unescaped backslash at: ".$match[1];
+ } elseif (preg_match('{"(?:[^"]+|\\\\")*$}m', $this->lexer->getUpcomingInput())) {
+ $message .= ", it appears you forgot to terminated the string, or attempted to write a multiline string which is invalid";
+ }
+ }
+
+ $errStr = 'Parse error on line ' . ($yylineno+1) . ":\n";
+ $errStr .= $this->lexer->showPosition() . "\n";
+ if ($message) {
+ $errStr .= $message;
+ } else {
+ $errStr .= (count($expected) > 1) ? "Expected one of: " : "Expected: ";
+ $errStr .= implode(', ', $expected);
+ }
+
+ if (',' === substr(trim($this->lexer->getPastInput()), -1)) {
+ $errStr .= " - It appears you have an extra trailing comma";
+ }
+
+ $this->parseError($errStr, array(
+ 'text' => $this->lexer->match,
+ 'token' => !empty($this->terminals_[$symbol]) ? $this->terminals_[$symbol] : $symbol,
+ 'line' => $this->lexer->yylineno,
+ 'loc' => $yyloc,
+ 'expected' => $expected,
+ ));
+ }
+
+ // just recovered from another error
+ if ($recovering == 3) {
+ if ($symbol == $EOF) {
+ throw new JsonLintParsingException($errStr ?: 'Parsing halted.');
+ }
+
+ // discard current lookahead and grab another
+ $yyleng = $this->lexer->yyleng;
+ $yytext = $this->lexer->yytext;
+ $yylineno = $this->lexer->yylineno;
+ $yyloc = $this->lexer->yylloc;
+ $symbol = $this->lex();
+ }
+
+ // try to recover from error
+ while (true) {
+ // check for error recovery rule in this state
+ if (array_key_exists($TERROR, $this->table[$state])) {
+ break;
+ }
+ if ($state == 0) {
+ throw new JsonLintParsingException($errStr ?: 'Parsing halted.');
+ }
+ $this->popStack(1);
+ $state = $this->stack[count($this->stack)-1];
+ }
+
+ $preErrorSymbol = $symbol; // save the lookahead token
+ $symbol = $TERROR; // insert generic error symbol as new lookahead
+ $state = $this->stack[count($this->stack)-1];
+ $action = isset($this->table[$state][$TERROR]) ? $this->table[$state][$TERROR] : false;
+ $recovering = 3; // allow 3 real symbols to be shifted before reporting a new error
+ }
+
+ // this shouldn't happen, unless resolve defaults are off
+ if (is_array($action[0]) && count($action) > 1) {
+ throw new JsonLintParsingException('Parse Error: multiple actions possible at state: ' . $state . ', token: ' . $symbol);
+ }
+
+ switch ($action[0]) {
+ case 1: // shift
+ $this->stack[] = $symbol;
+ $this->vstack[] = $this->lexer->yytext;
+ $this->lstack[] = $this->lexer->yylloc;
+ $this->stack[] = $action[1]; // push state
+ $symbol = null;
+ if (!$preErrorSymbol) { // normal execution/no error
+ $yyleng = $this->lexer->yyleng;
+ $yytext = $this->lexer->yytext;
+ $yylineno = $this->lexer->yylineno;
+ $yyloc = $this->lexer->yylloc;
+ if ($recovering > 0) {
+ $recovering--;
+ }
+ } else { // error just occurred, resume old lookahead f/ before error
+ $symbol = $preErrorSymbol;
+ $preErrorSymbol = null;
+ }
+ break;
+
+ case 2: // reduce
+ $len = $this->productions_[$action[1]][1];
+
+ // perform semantic action
+ $yyval->token = $this->vstack[count($this->vstack) - $len]; // default to $$ = $1
+ // default location, uses first token for firsts, last for lasts
+ $yyval->store = array( // _$ = store
+ 'first_line' => $this->lstack[count($this->lstack) - ($len ?: 1)]['first_line'],
+ 'last_line' => $this->lstack[count($this->lstack) - 1]['last_line'],
+ 'first_column' => $this->lstack[count($this->lstack) - ($len ?: 1)]['first_column'],
+ 'last_column' => $this->lstack[count($this->lstack) - 1]['last_column'],
+ );
+ $r = $this->performAction($yyval, $yytext, $yyleng, $yylineno, $action[1], $this->vstack, $this->lstack);
+
+ if (!$r instanceof JsonLintUndefined) {
+ return $r;
+ }
+
+ if ($len) {
+ $this->popStack($len);
+ }
+
+ $this->stack[] = $this->productions_[$action[1]][0]; // push nonterminal (reduce)
+ $this->vstack[] = $yyval->token;
+ $this->lstack[] = $yyval->store;
+ $newState = $this->table[$this->stack[count($this->stack)-2]][$this->stack[count($this->stack)-1]];
+ $this->stack[] = $newState;
+ break;
+
+ case 3: // accept
+
+ return true;
+ }
+ }
+
+ return true;
+ }
+
+ protected function parseError($str, $hash)
+ {
+ throw new JsonLintParsingException($str, $hash);
+ }
+
+ // $$ = $tokens // needs to be passed by ref?
+ // $ = $token
+ // _$ removed, useless?
+ private function performAction(stdClass $yyval, $yytext, $yyleng, $yylineno, $yystate, &$tokens)
+ {
+ // $0 = $len
+ $len = count($tokens) - 1;
+ switch ($yystate) {
+ case 1:
+ $yytext = preg_replace_callback('{(?:\\\\["bfnrt/\\\\]|\\\\u[a-fA-F0-9]{4})}', array($this, 'stringInterpolation'), $yytext);
+ $yyval->token = $yytext;
+ break;
+ case 2:
+ if (strpos($yytext, 'e') !== false || strpos($yytext, 'E') !== false) {
+ $yyval->token = floatval($yytext);
+ } else {
+ $yyval->token = strpos($yytext, '.') === false ? intval($yytext) : floatval($yytext);
+ }
+ break;
+ case 3:
+ $yyval->token = null;
+ break;
+ case 4:
+ $yyval->token = true;
+ break;
+ case 5:
+ $yyval->token = false;
+ break;
+ case 6:
+ return $yyval->token = $tokens[$len-1];
+ case 13:
+ $yyval->token = new stdClass;
+ break;
+ case 14:
+ $yyval->token = $tokens[$len-1];
+ break;
+ case 15:
+ $yyval->token = array($tokens[$len-2], $tokens[$len]);
+ break;
+ case 16:
+ $yyval->token = new stdClass;
+ $property = $tokens[$len][0] === '' ? '_empty_' : $tokens[$len][0];
+ $yyval->token->$property = $tokens[$len][1];
+ break;
+ case 17:
+ $yyval->token = $tokens[$len-2];
+ $key = $tokens[$len][0] === '' ? '_empty_' : $tokens[$len][0];
+ if (($this->flags & self::DETECT_KEY_CONFLICTS) && isset($tokens[$len-2]->{$key})) {
+ $errStr = 'Parse error on line ' . ($yylineno+1) . ":\n";
+ $errStr .= $this->lexer->showPosition() . "\n";
+ $errStr .= "Duplicate key: ".$tokens[$len][0];
+ throw new JsonLintParsingException($errStr);
+ } elseif (($this->flags & self::ALLOW_DUPLICATE_KEYS) && isset($tokens[$len-2]->{$key})) {
+ $duplicateCount = 1;
+ do {
+ $duplicateKey = $key . '.' . $duplicateCount++;
+ } while (isset($tokens[$len-2]->$duplicateKey));
+ $key = $duplicateKey;
+ }
+ $tokens[$len-2]->$key = $tokens[$len][1];
+ break;
+ case 18:
+ $yyval->token = array();
+ break;
+ case 19:
+ $yyval->token = $tokens[$len-1];
+ break;
+ case 20:
+ $yyval->token = array($tokens[$len]);
+ break;
+ case 21:
+ $tokens[$len-2][] = $tokens[$len];
+ $yyval->token = $tokens[$len-2];
+ break;
+ }
+
+ return new JsonLintUndefined();
+ }
+
+ private function stringInterpolation($match)
+ {
+ switch ($match[0]) {
+ case '\\\\':
+ return '\\';
+ case '\"':
+ return '"';
+ case '\b':
+ return chr(8);
+ case '\f':
+ return chr(12);
+ case '\n':
+ return "\n";
+ case '\r':
+ return "\r";
+ case '\t':
+ return "\t";
+ case '\/':
+ return "/";
+ default:
+ return html_entity_decode('&#x'.ltrim(substr($match[0], 2), '0').';', 0, 'UTF-8');
+ }
+ }
+
+ private function popStack($n)
+ {
+ $this->stack = array_slice($this->stack, 0, - (2 * $n));
+ $this->vstack = array_slice($this->vstack, 0, - $n);
+ $this->lstack = array_slice($this->lstack, 0, - $n);
+ }
+
+ private function lex()
+ {
+ $token = $this->lexer->lex() ?: 1; // $end = 1
+ // if token isn't its numeric value, convert
+ if (!is_numeric($token)) {
+ $token = isset($this->symbols[$token]) ? $this->symbols[$token] : $token;
+ }
+
+ return $token;
+ }
+
+ private function failOnBOM($input)
+ {
+ // UTF-8 ByteOrderMark sequence
+ $bom = "\xEF\xBB\xBF";
+
+ if (substr($input, 0, 3) === $bom) {
+ $this->parseError("BOM detected, make sure your input does not include a Unicode Byte-Order-Mark", array());
+ }
+ }
+}
diff --git a/externals/jsonlint/src/Seld/JsonLint/Lexer.php b/externals/jsonlint/src/Seld/JsonLint/Lexer.php
new file mode 100644
--- /dev/null
+++ b/externals/jsonlint/src/Seld/JsonLint/Lexer.php
@@ -0,0 +1,227 @@
+<?php
+
+/*
+ * This file is part of the JSON Lint package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Lexer class
+ *
+ * Ported from https://github.com/zaach/jsonlint
+ */
+class JsonLintLexer
+{
+ private $EOF = 1;
+ private $rules = array(
+ 0 => '/^\s+/',
+ 1 => '/^-?([0-9]|[1-9][0-9]+)(\.[0-9]+)?([eE][+-]?[0-9]+)?\b/',
+ 2 => '{^"(\\\\["bfnrt/\\\\]|\\\\u[a-fA-F0-9]{4}|[^\0-\x09\x0a-\x1f\\\\"])*"}',
+ 3 => '/^\{/',
+ 4 => '/^\}/',
+ 5 => '/^\[/',
+ 6 => '/^\]/',
+ 7 => '/^,/',
+ 8 => '/^:/',
+ 9 => '/^true\b/',
+ 10 => '/^false\b/',
+ 11 => '/^null\b/',
+ 12 => '/^$/',
+ 13 => '/^./',
+ );
+
+ private $conditions = array(
+ "INITIAL" => array(
+ "rules" => array(0,1,2,3,4,5,6,7,8,9,10,11,12,13),
+ "inclusive" => true,
+ ),
+ );
+
+ private $conditionStack;
+ private $input;
+ private $more;
+ private $done;
+ private $matched;
+
+ public $match;
+ public $yylineno;
+ public $yyleng;
+ public $yytext;
+ public $yylloc;
+
+ public function lex()
+ {
+ $r = $this->next();
+ if (!$r instanceof JsonLintUndefined) {
+ return $r;
+ }
+
+ return $this->lex();
+ }
+
+ public function setInput($input)
+ {
+ $this->input = $input;
+ $this->more = false;
+ $this->done = false;
+ $this->yylineno = $this->yyleng = 0;
+ $this->yytext = $this->matched = $this->match = '';
+ $this->conditionStack = array('INITIAL');
+ $this->yylloc = array('first_line' => 1, 'first_column' => 0, 'last_line' => 1, 'last_column' => 0);
+
+ return $this;
+ }
+
+ public function showPosition()
+ {
+ $pre = str_replace("\n", '', $this->getPastInput());
+ $c = str_repeat('-', strlen($pre) - 1); // new Array(pre.length + 1).join("-");
+
+ return $pre . str_replace("\n", '', $this->getUpcomingInput()) . "\n" . $c . "^";
+ }
+
+ public function getPastInput()
+ {
+ $past = substr($this->matched, 0, strlen($this->matched) - strlen($this->match));
+
+ return (strlen($past) > 20 ? '...' : '') . substr($past, -20);
+ }
+
+ public function getUpcomingInput()
+ {
+ $next = $this->match;
+ if (strlen($next) < 20) {
+ $next .= substr($this->input, 0, 20 - strlen($next));
+ }
+
+ return substr($next, 0, 20) . (strlen($next) > 20 ? '...' : '');
+ }
+
+ protected function parseError($str, $hash)
+ {
+ throw new \Exception($str);
+ }
+
+ private function next()
+ {
+ if ($this->done) {
+ return $this->EOF;
+ }
+ if (!$this->input) {
+ $this->done = true;
+ }
+
+ $token = null;
+ $match = null;
+ $col = null;
+ $lines = null;
+
+ if (!$this->more) {
+ $this->yytext = '';
+ $this->match = '';
+ }
+
+ $rules = $this->getCurrentRules();
+ $rulesLen = count($rules);
+
+ for ($i=0; $i < $rulesLen; $i++) {
+ if (preg_match($this->rules[$rules[$i]], $this->input, $match)) {
+ preg_match_all('/\n.*/', $match[0], $lines);
+ $lines = $lines[0];
+ if ($lines) {
+ $this->yylineno += count($lines);
+ }
+
+ $this->yylloc = array(
+ 'first_line' => $this->yylloc['last_line'],
+ 'last_line' => $this->yylineno+1,
+ 'first_column' => $this->yylloc['last_column'],
+ 'last_column' => $lines ? strlen($lines[count($lines) - 1]) - 1 : $this->yylloc['last_column'] + strlen($match[0]),
+ );
+ $this->yytext .= $match[0];
+ $this->match .= $match[0];
+ $this->matches = $match;
+ $this->yyleng = strlen($this->yytext);
+ $this->more = false;
+ $this->input = substr($this->input, strlen($match[0]));
+ $this->matched .= $match[0];
+ $token = $this->performAction($rules[$i], $this->conditionStack[count($this->conditionStack)-1]);
+ if ($token) {
+ return $token;
+ }
+
+ return new JsonLintUndefined();
+ }
+ }
+
+ if ($this->input === "") {
+ return $this->EOF;
+ }
+
+ $this->parseError(
+ 'Lexical error on line ' . ($this->yylineno+1) . ". Unrecognized text.\n" . $this->showPosition(),
+ array(
+ 'text' => "",
+ 'token' => null,
+ 'line' => $this->yylineno,
+ )
+ );
+ }
+
+ private function begin($condition)
+ {
+ $this->conditionStack[] = $condition;
+ }
+
+ private function popState()
+ {
+ return array_pop($this->conditionStack);
+ }
+
+ private function getCurrentRules()
+ {
+ return $this->conditions[$this->conditionStack[count($this->conditionStack)-1]]['rules'];
+ }
+
+ private function performAction($avoiding_name_collisions, $YY_START)
+ {
+ $YYSTATE = $YY_START;
+ switch ($avoiding_name_collisions) {
+ case 0:/* skip whitespace */
+ break;
+ case 1:
+ return 6;
+ break;
+ case 2:
+ $this->yytext = substr($this->yytext, 1, $this->yyleng-2);
+
+ return 4;
+ case 3:
+ return 17;
+ case 4:
+ return 18;
+ case 5:
+ return 23;
+ case 6:
+ return 24;
+ case 7:
+ return 22;
+ case 8:
+ return 21;
+ case 9:
+ return 10;
+ case 10:
+ return 11;
+ case 11:
+ return 8;
+ case 12:
+ return 14;
+ case 13:
+ return 'INVALID';
+ }
+ }
+}
diff --git a/externals/jsonlint/src/Seld/JsonLint/ParsingException.php b/externals/jsonlint/src/Seld/JsonLint/ParsingException.php
new file mode 100644
--- /dev/null
+++ b/externals/jsonlint/src/Seld/JsonLint/ParsingException.php
@@ -0,0 +1,26 @@
+<?php
+
+/*
+ * This file is part of the JSON Lint package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class JsonLintParsingException extends Exception
+{
+ protected $details;
+
+ public function __construct($message, $details = array())
+ {
+ $this->details = $details;
+ parent::__construct($message);
+ }
+
+ public function getDetails()
+ {
+ return $this->details;
+ }
+}
diff --git a/externals/jsonlint/src/Seld/JsonLint/Undefined.php b/externals/jsonlint/src/Seld/JsonLint/Undefined.php
new file mode 100644
--- /dev/null
+++ b/externals/jsonlint/src/Seld/JsonLint/Undefined.php
@@ -0,0 +1,14 @@
+<?php
+
+/*
+ * This file is part of the JSON Lint package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class JsonLintUndefined
+{
+}
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -179,6 +179,9 @@
'PhutilInteractiveEditor' => 'console/PhutilInteractiveEditor.php',
'PhutilInvisibleSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilInvisibleSyntaxHighlighter.php',
'PhutilJSON' => 'parser/PhutilJSON.php',
+ 'PhutilJSONParser' => 'parser/PhutilJSONParser.php',
+ 'PhutilJSONParserException' => 'parser/exception/PhutilJSONParserException.php',
+ 'PhutilJSONParserTestCase' => 'parser/__tests__/PhutilJSONParserTestCase.php',
'PhutilJSONProtocolChannel' => 'channel/PhutilJSONProtocolChannel.php',
'PhutilJSONProtocolChannelTestCase' => 'channel/__tests__/PhutilJSONProtocolChannelTestCase.php',
'PhutilJSONTestCase' => 'parser/__tests__/PhutilJSONTestCase.php',
@@ -575,6 +578,8 @@
'PhutilHangForeverDaemon' => 'PhutilTortureTestDaemon',
'PhutilHelpArgumentWorkflow' => 'PhutilArgumentWorkflow',
'PhutilInfrastructureTestCase' => 'PhutilTestCase',
+ 'PhutilJSONParserException' => 'Exception',
+ 'PhutilJSONParserTestCase' => 'PhutilTestCase',
'PhutilJSONProtocolChannel' => 'PhutilProtocolChannel',
'PhutilJSONProtocolChannelTestCase' => 'PhutilTestCase',
'PhutilJSONTestCase' => 'PhutilTestCase',
diff --git a/src/parser/PhutilJSONParser.php b/src/parser/PhutilJSONParser.php
new file mode 100644
--- /dev/null
+++ b/src/parser/PhutilJSONParser.php
@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * WARNING: This is not quite usable yet. See T5297.
+ *
+ * @phutil-external-symbol class JsonLintJsonParser
+ * @phutil-external-symbol class JsonLintParsingException
+ */
+final class PhutilJSONParser {
+
+ public function parse($json) {
+ $jsonlint_root = phutil_get_library_root('phutil').'/../externals/jsonlint';
+ require_once($jsonlint_root.'/src/Seld/JsonLint/JsonParser.php');
+ require_once($jsonlint_root.'/src/Seld/JsonLint/Lexer.php');
+ require_once($jsonlint_root.'/src/Seld/JsonLint/ParsingException.php');
+ require_once($jsonlint_root.'/src/Seld/JsonLint/Undefined.php');
+
+ if (!$json) {
+ throw new PhutilJSONParserException(
+ pht(
+ '%s is not a valid JSON object.',
+ PhutilReadableSerializer::printShort($json)));
+ }
+
+ $parser = new JsonLintJsonParser();
+ try {
+ $output = $parser->parse($json);
+ } catch (JsonLintParsingException $ex) {
+ throw new PhutilJSONParserException($ex->getMessage());
+ }
+
+ if (!$output instanceof stdClass && !is_array($output)) {
+ throw new PhutilJSONParserException(
+ pht(
+ '%s is not a valid JSON object.',
+ PhutilReadableSerializer::printShort($json)));
+ }
+
+ return (array)$output;
+ }
+
+}
diff --git a/src/parser/__tests__/PhutilJSONParserTestCase.php b/src/parser/__tests__/PhutilJSONParserTestCase.php
new file mode 100644
--- /dev/null
+++ b/src/parser/__tests__/PhutilJSONParserTestCase.php
@@ -0,0 +1,50 @@
+<?php
+
+final class PhutilJSONParserTestCase extends PhutilTestCase {
+
+ public function testValidJSON() {
+ $parser = new PhutilJSONParser();
+
+ $tests = array(
+ '{}' => array(),
+ '[]' => array(),
+ '{"foo": "bar"}' => array('foo' => 'bar'),
+ '[1, "foo", true, null]' => array(1, 'foo', true, null),
+ );
+
+ foreach ($tests as $input => $expect) {
+ $this->assertEqual(
+ $expect,
+ $parser->parse($input),
+ 'Parsing JSON: '.$input);
+ }
+ }
+
+ public function testInvalidJSON() {
+ $parser = new PhutilJSONParser();
+
+ $tests = array(
+ '',
+ 'null',
+ 'false',
+ 'true',
+ '"quack quack I am a duck lol"',
+ '{',
+ '[',
+ '{"foo":',
+ '{"foo":"bar",}',
+ '{{}',
+ );
+
+ foreach ($tests as $input) {
+ $caught = null;
+ try {
+ $parser->parse($input);
+ } catch (Exception $ex) {
+ $caught = $ex;
+ }
+ $this->assertTrue($caught instanceof PhutilJSONParserException);
+ }
+ }
+
+}
diff --git a/src/parser/exception/PhutilJSONParserException.php b/src/parser/exception/PhutilJSONParserException.php
new file mode 100644
--- /dev/null
+++ b/src/parser/exception/PhutilJSONParserException.php
@@ -0,0 +1,3 @@
+<?php
+
+final class PhutilJSONParserException extends Exception {}

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