[interchange] Patch [area] to accept decoded strings.

commit ce493f1cbfe196d8b6b3a636e95ea6e351060b89
Author: Marco Pessotto <[email protected]>
Date:   Mon Feb 17 16:02:30 2014 +0100

    Patch [area] to accept decoded strings.
    
    is_utf8 is badly name. First, it's an internal function, but it's
    used all over the place in IC.
    
    From the doc:
    
        is_utf8(STRING [, CHECK])
          [INTERNAL] Tests whether the UTF8 flag is turned on in the STRING. If
          CHECK is true, also checks the data in STRING for being well-formed
          UTF-8. Returns true if successful, false otherwise.
    
    So, basically, is_utf8 returns true if the string is decoded, not when
    is encoded in utf8.
    
    use strict;
    use warnings;
    use utf8;
    ok(is_utf8("à"));
    diag "When we encode, the string is not \"utf8\" any more";
    ok(!is_utf8(encode(utf8 => 'à')));

 lib/Vend/Util.pm |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/lib/Vend/Util.pm b/lib/Vend/Util.pm
index 2152bad..97d6c69 100644
--- a/lib/Vend/Util.pm
+++ b/lib/Vend/Util.pm
@@ -189,6 +189,12 @@ sub escape_chars_url {
     my($c, $r);
 
     $r = '';
+    if ($::Variable->{MV_UTF8} || $Global::Variable->{MV_UTF8}) {
+        # check if it's decoded
+        if (is_utf8($in)) {
+            $in = encode_utf8($in);
+        }
+    }
     foreach $c (split(m{}, $in)) {
 		$r .= $ESCAPE_CHARS::translate_url[ord($c)];
     }

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