Check scheme part in redirected URI more strictly.

The previous implementation mistakenly sees '/abspath?uri=http://foo'
as an absolute URI because it contains '://', but actually it is not.
This change checks scheme part is constructed in the allowed character
set described in RFC 3986 Section 3.1.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index 4d2ceb43..80de4d29 100644
--- a/src/util.h
+++ b/src/util.h
@@ -358,6 +358,8 @@ bool isNumber(InputIterator first, InputIterator last)
   return true;
 }
 
+bool isAlpha(const char c);
+
 bool isDigit(const char c);
 
 bool isHexDigit(const char c);