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-rw-r--r--src/rgw/rgw_string.cc45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/rgw/rgw_string.cc b/src/rgw/rgw_string.cc
new file mode 100644
index 00000000..d49bba71
--- /dev/null
+++ b/src/rgw/rgw_string.cc
@@ -0,0 +1,45 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "rgw_string.h"
+
+static bool char_eq(char c1, char c2)
+{
+ return c1 == c2;
+}
+
+static bool ci_char_eq(char c1, char c2)
+{
+ return tolower(c1) == tolower(c2);
+}
+
+bool match_wildcards(boost::string_view pattern, boost::string_view input,
+ uint32_t flags)
+{
+ const auto eq = (flags & MATCH_CASE_INSENSITIVE) ? &ci_char_eq : &char_eq;
+
+ auto it1 = pattern.begin();
+ auto it2 = input.begin();
+ while (true) {
+ if (it1 == pattern.end())
+ return it2 == input.end();
+ if (*it1 == '*') {
+ if (it1 + 1 == pattern.end())
+ return true;
+ if (it2 == input.end() || eq(*(it1 + 1), *it2))
+ ++it1;
+ else
+ ++it2;
+ continue;
+ }
+ if (it2 == input.end())
+ return false;
+ if (*it1 == '?' || eq(*it1, *it2)) {
+ ++it1;
+ ++it2;
+ continue;
+ }
+ return false;
+ }
+ return false;
+}