1 files changed, 80 insertions, 0 deletions
diff --git a/src/lib/utils.cpp b/src/lib/utils.cpp
new file mode 100644
index 0000000..3c6216c
--- /dev/null
+++ b/src/lib/utils.cpp
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2021, [Ribose Inc](https://www.ribose.com).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "types.h"
+#include "str-utils.h"
+
+const char *
+id_str_pair::lookup(const id_str_pair pair[], int id, const char *notfound)
+{
+    while (pair && pair->str) {
+        if (pair->id == id) {
+            return pair->str;
+        }
+        pair++;
+    }
+    return notfound;
+}
+
+int
+id_str_pair::lookup(const id_str_pair pair[], const char *str, int notfound)
+{
+    while (pair && pair->str) {
+        if (rnp::str_case_eq(str, pair->str)) {
+            return pair->id;
+        }
+        pair++;
+    }
+    return notfound;
+}
+
+int
+id_str_pair::lookup(const id_str_pair pair[], const std::vector<uint8_t> &bytes, int notfound)
+{
+    while (pair && pair->str) {
+        if ((strlen(pair->str) == bytes.size()) &&
+            !memcmp(pair->str, bytes.data(), bytes.size())) {
+            return pair->id;
+        }
+        pair++;
+    }
+    return notfound;
+}
+
+int
+id_str_pair::lookup(const id_str_pair                 pair[],
+                    const std::basic_string<uint8_t> &bytes,
+                    int                               notfound)
+{
+    while (pair && pair->str) {
+        if ((strlen(pair->str) == bytes.size()) &&
+            !memcmp(pair->str, bytes.data(), bytes.size())) {
+            return pair->id;
+        }
+        pair++;
+    }
+    return notfound;
+}