rgw: move {camecase, lowercase}_dash_http_attr functions to rgw_common

Signed-off-by: Chang Liu <liuchang0812@gmail.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/rgw/rgw_common.cc b/src/rgw/rgw_common.cc
index 56a354a3faa..a743e7c02e7 100644
--- a/src/rgw/rgw_common.cc
+++ b/src/rgw/rgw_common.cc
@@ -1895,3 +1895,56 @@ bool match_policy(boost::string_view pattern, boost::string_view input,
     last_pos_input = cur_pos_input + 1;
   }
 }
+
+/*
+ * make attrs look-like-this
+ * converts underscores to dashes
+ */
+string lowercase_dash_http_attr(const string& orig)
+{
+  const char *s = orig.c_str();
+  char buf[orig.size() + 1];
+  buf[orig.size()] = '\0';
+
+  for (size_t i = 0; i < orig.size(); ++i, ++s) {
+    switch (*s) {
+      case '_':
+        buf[i] = '-';
+        break;
+      default:
+        buf[i] = tolower(*s);
+    }
+  }
+  return string(buf);
+}
+
+/*
+ * make attrs Look-Like-This
+ * converts underscores to dashes
+ */
+string camelcase_dash_http_attr(const string& orig)
+{
+  const char *s = orig.c_str();
+  char buf[orig.size() + 1];
+  buf[orig.size()] = '\0';
+
+  bool last_sep = true;
+
+  for (size_t i = 0; i < orig.size(); ++i, ++s) {
+    switch (*s) {
+      case '_':
+      case '-':
+        buf[i] = '-';
+        last_sep = true;
+        break;
+      default:
+        if (last_sep) {
+          buf[i] = toupper(*s);
+        } else {
+          buf[i] = tolower(*s);
+        }
+        last_sep = false;
+    }
+  }
+  return string(buf);
+}