⬆️ Met à jour le script suite au passage à React

library/JsParser.php

@@ -0,0 +1,147 @@
+<?php
+
+namespace Shikiryu\LBCReposter;
+
+
+class JsParser
+{
+
+    /**
+     * @param $str
+     * @param $data
+     *
+     * @return bool|string
+     *
+     * @throws JsParserException
+     */
+    public static function parse_jsobj($str, &$data)
+    {
+        $str = trim($str);
+        if (strlen($str) < 1) return null;
+
+        if ($str{0} != '{') {
+            throw new JsParserException('The given string is not a JS object');
+        }
+        $str = substr($str, 1);
+
+        /* While we have data, and it's not the end of this dict (the comma is needed for nested dicts) */
+        while (strlen($str) && $str{0} != '}' && $str{0} != ',') {
+            /* find the key */
+            if ($str{0} == "'" || $str{0} == '"') {
+                /* quoted key */
+                list($str, $key) = self::parse_jsdata($str, ':');
+            } else {
+                $match = null;
+                /* unquoted key */
+                if (!preg_match('/^\s*[a-zA-z_][a-zA-Z_\d]*\s*:/', $str, $match)) {
+                    throw new JsParserException('Invalid key ("' . $str . '")');
+                }
+                $key = $match[0];
+                $str = substr($str, strlen($key));
+                $key = trim(substr($key, 0, -1)); /* discard the ':' */
+            }
+
+            list($str, $data[$key]) = self::parse_jsdata($str, '}');
+        }
+
+        return substr($str, 1);
+    }
+
+    /**
+     * @param $str
+     * @param $term
+     * @return bool|int|mixed
+     * @throws JsParserException
+     */
+    public static function comma_or_term_pos($str, $term)
+    {
+        $cpos = strpos($str, ',');
+        $tpos = strpos($str, $term);
+        if ($cpos === false && $tpos === false) {
+            throw new JsParserException('unterminated dict or array');
+        } else if ($cpos === false) {
+            return $tpos;
+        } else if ($tpos === false) {
+            return $cpos;
+        }
+        return min($tpos, $cpos);
+    }
+
+    /**
+     * @param $str
+     * @param string $term
+     * @return array
+     * @throws JsParserException
+     */
+    public static function parse_jsdata($str, $term = "}")
+    {
+        $str = trim($str);
+
+
+        if (is_numeric($str{0} . "0")) {
+            /* a number (int or float) */
+            $newpos = self::comma_or_term_pos($str, $term);
+            $num = trim(substr($str, 0, $newpos));
+            $str = substr($str, $newpos + 1); /* discard num and comma */
+            if (!is_numeric($num)) {
+                throw new JsParserException('OOPSIE while parsing number: "' . $num . '"');
+            }
+            return array(trim($str), $num + 0);
+        } else if ($str{0} == '"' || $str{0} == "'") {
+            /* string */
+            $q = $str{0};
+            $offset = 1;
+            do {
+                $pos = strpos($str, $q, $offset);
+                $offset = $pos;
+            } while ($str{$pos - 1} == '\\'); /* find un-escaped quote */
+            $data = substr($str, 1, $pos - 1);
+            $str = substr($str, $pos);
+            $pos = self::comma_or_term_pos($str, $term);
+            $str = substr($str, $pos + 1);
+            return array(trim($str), $data);
+        } else if ($str{0} == '{') {
+            /* dict */
+            $data = array();
+            $str = self::parse_jsobj($str, $data);
+            return array($str, $data);
+        } else if ($str{0} == '[') {
+            /* array */
+            $arr = array();
+            $str = substr($str, 1);
+            if (']' === $str[0]) {
+                return ['', $arr];
+            }
+            while (strlen($str) && $str{0} != $term && $str{0} != ',') {
+                $val = null;
+                list($str, $val) = self::parse_jsdata($str, ']');
+                $arr[] = $val;
+                $str = trim($str);
+            }
+            $str = trim(substr($str, 1));
+            return array($str, $arr);
+        } else if (stripos($str, 'true') === 0) {
+            /* true */
+            $pos = self::comma_or_term_pos($str, $term);
+            $str = substr($str, $pos + 1); /* discard terminator */
+            return array(trim($str), true);
+        } else if (stripos($str, 'false') === 0) {
+            /* false */
+            $pos = self::comma_or_term_pos($str, $term);
+            $str = substr($str, $pos + 1); /* discard terminator */
+            return array(trim($str), false);
+        } else if (stripos($str, 'null') === 0) {
+            /* null */
+            $pos = self::comma_or_term_pos($str, $term);
+            $str = substr($str, $pos + 1); /* discard terminator */
+            return array(trim($str), null);
+        } else if (strpos($str, 'undefined') === 0) {
+            /* null */
+            $pos = self::comma_or_term_pos($str, $term);
+            $str = substr($str, $pos + 1); /* discard terminator */
+            return array(trim($str), null);
+        } else {
+            throw new JsParserException('Cannot figure out how to parse "' . $str . '" (term is ' . $term . ')');
+        }
+    }
+}