Handle signed chars. Aadded dIsspace() and dIsalnum() to dlib

1 files changed, 1 insertions, 1 deletions

diff --git a/src/url.c b/src/url.c
index 5d15aade..a90a4e83 100644
--- a/src/url.c
+++ b/src/url.c
@@ -585,7 +585,7 @@ char *a_Url_encode_hex_str(const char *str)
    newstr = dNew(char, 6*strlen(str)+1);
 
    for (c = newstr; *str; str++)
-      if ((isalnum(*str) && !(*str & 0x80)) || strchr(verbatim, *str))
+      if ((dIsalnum(*str) && !(*str & 0x80)) || strchr(verbatim, *str))
       /* we really need isalnum for the "C" locale */
          *c++ = *str;
       else if (*str == ' ')