1 files changed, 101 insertions, 0 deletions
diff --git a/hugo/libraries/string.lib.php b/hugo/libraries/string.lib.php
new file mode 100644
index 0000000..6045016
--- /dev/null
+++ b/hugo/libraries/string.lib.php
@@ -0,0 +1,101 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * Specialized String Functions for phpMyAdmin
+ *
+ * Defines a set of function callbacks that have a pure C version available if
+ * the "ctype" extension is available, but otherwise have PHP versions to use
+ * (that are slower).
+ *
+ * The SQL Parser code relies heavily on these functions.
+ *
+ * @todo a .lib filename should not have code in main(), split or rename file
+ * @package PhpMyAdmin-String
+ */
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+/**
+ * Load proper code for handling input.
+ */
+if (@function_exists('mb_strlen')) {
+    mb_internal_encoding('utf-8');
+    include './libraries/string_mb.lib.php';
+} else {
+    include './libraries/string_native.lib.php';
+}
+
+/**
+ * Load ctype handler.
+ */
+if (@extension_loaded('ctype')) {
+    include './libraries/string_type_ctype.lib.php';
+} else {
+    include './libraries/string_type_native.lib.php';
+}
+
+/**
+ * Checks if a given character position in the string is escaped or not
+ *
+ * @param string  $string string to check for
+ * @param integer $pos    the character to check for
+ * @param integer $start  starting position in the string
+ *
+ * @return boolean  whether the character is escaped or not
+ */
+function PMA_STR_charIsEscaped($string, $pos, $start = 0)
+{
+    $pos = max(intval($pos), 0);
+    $start = max(intval($start), 0);
+    $len = PMA_strlen($string);
+    // Base case:
+    // Check for string length or invalid input or special case of input
+    // (pos == $start)
+    if ($pos <= $start || $len <= max($pos, $start)) {
+        return false;
+    }
+
+    $pos--;
+    $escaped     = false;
+    while ($pos >= $start && PMA_substr($string, $pos, 1) == '\\') {
+        $escaped = !$escaped;
+        $pos--;
+    } // end while
+
+    return $escaped;
+} // end of the "PMA_STR_charIsEscaped()" function
+
+
+/**
+ * Checks if a number is in a range
+ *
+ * @param integer $num   number to check for
+ * @param integer $lower lower bound
+ * @param integer $upper upper bound
+ *
+ * @return boolean  whether the number is in the range or not
+ */
+function PMA_STR_numberInRangeInclusive($num, $lower, $upper)
+{
+    return ($num >= $lower && $num <= $upper);
+} // end of the "PMA_STR_numberInRangeInclusive()" function
+
+/**
+ * Checks if a character is an SQL identifier
+ *
+ * @param string  $c            character to check for
+ * @param boolean $dot_is_valid whether the dot character is valid or not
+ *
+ * @return boolean  whether the character is an SQL identifier or not
+ */
+function PMA_STR_isSqlIdentifier($c, $dot_is_valid = false)
+{
+    return (PMA_STR_isAlnum($c)
+        || ($ord_c = ord($c)) && $ord_c >= 192 && $ord_c != 215 && $ord_c != 249
+        || $c == '_'
+        || $c == '$'
+        || ($dot_is_valid != false && $c == '.'));
+} // end of the "PMA_STR_isSqlIdentifier()" function
+
+?>