rollback of the utf8_isASCII() patch

Ignore-this: e5afeb833d0e0b0bf05ff5f497a3130d

Tests showed the old code was faster and I was too stupid to read the test results
rolling back:

Fri Jul 24 10:40:09 CEST 2009  Andreas Haerter <netzmeister@andreas-haerter.de>
  * Much faster version of utf8_isASCII()
  This version uses a non-capturing regular expression instead of looping through
  all characters of the string.

    M ./inc/utf8.php -5 +2

darcs-hash:20090725104459-7ad00-c4849ca67293083fee8021c2c198dab1dcb435a2.gz

1 files changed, 5 insertions, 2 deletions

diff --git a/inc/utf8.php b/inc/utf8.php
index 85e5f4f7e..e2f016942 100644
--- a/inc/utf8.php
+++ b/inc/utf8.php
@@ -62,10 +62,13 @@ if(!function_exists('utf8_isASCII')){
     /**
      * Checks if a string contains 7bit ASCII only
      *
-     * @author Andreas Haerter <netzmeister@andreas-haerter.de>
+     * @author Andreas Gohr <andi@splitbrain.org>
      */
     function utf8_isASCII($str){
-        return (preg_match('/(?:[^\x00-\x7F])/', $str) !== 1);
+      for($i=0; $i<strlen($str); $i++){
+        if(ord($str{$i}) >127) return false;
+      }
+      return true;
     }
 }