- adding ctype_* emulation from upgradephp library; we don't have to require ctype extension

git-svn-id: http://dev.piwik.org/svn/trunk@900 59fd770c-687e-43c8-a1e3-f5a4ff64c105

1 files changed, 44 insertions, 2 deletions

diff --git a/libs/upgradephp/upgrade.php b/libs/upgradephp/upgrade.php
index 349c0e6672..671fb65592 100644
--- a/libs/upgradephp/upgrade.php
+++ b/libs/upgradephp/upgrade.php
@@ -382,6 +382,48 @@ if (!function_exists("htmlspecialchars_decode")) {
    }
 }
 
+/*
+   These functions emulate the "character type" extension, which is
+   present in PHP first since version 4.3 per default. In this variant
+   only ASCII and Latin-1 characters are being handled. The first part
+   is eventually faster.
+*/
+
+
+#-- regex variants
+if (!function_exists("ctype_alnum")) {
+   function ctype_alnum($text) {
+      return preg_match("/^[A-Za-z\d\300-\377]+$/", $text);
+   }
+   function ctype_alpha($text) {
+      return preg_match("/^[a-zA-Z\300-\377]+$/", $text);
+   }
+   function ctype_digit($text) {
+      return preg_match("/^\d+$/", $text);
+   }
+   function ctype_xdigit($text) {
+      return preg_match("/^[a-fA-F0-9]+$/", $text);
+   }
+   function ctype_cntrl($text) {
+      return preg_match("/^[\000-\037]+$/", $text);
+   }
+   function ctype_space($text) {
+      return preg_match("/^\s+$/", $text);
+   }
+   function ctype_upper($text) {
+      return preg_match("/^[A-Z\300-\337]+$/", $text);
+   }
+   function ctype_lower($text) {
+      return preg_match("/^[a-z\340-\377]+$/", $text);
+   }
+   function ctype_graph($text) {
+      return preg_match("/^[\041-\176\241-\377]+$/", $text);
+   }
+   function ctype_punct($text) {
+      return preg_match("/^[^0-9A-Za-z\000-\040\177-\240\300-\377]+$/", $text);
+   }
+   function ctype_print($text) {
+      return ctype_punct($text) && ctype_graph($text);
+   }
 
-
-?>
+}