1 files changed, 70 insertions, 0 deletions
diff --git a/src/column_namer.hh b/src/column_namer.hh
new file mode 100644
index 0000000..a98d9ef
--- /dev/null
+++ b/src/column_namer.hh
@@ -0,0 +1,70 @@
+/**
+ * Copyright (c) 2013, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * 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.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ * @file column_namer.hh
+ */
+
+#ifndef lnav_column_namer_hh
+#define lnav_column_namer_hh
+
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "ArenaAlloc/arenaalloc.h"
+#include "base/intern_string.hh"
+
+class column_namer {
+public:
+    enum class language {
+        SQL,
+        JSON,
+    };
+
+    column_namer(language lang);
+
+    bool existing_name(const string_fragment& in_name) const;
+
+    string_fragment add_column(const string_fragment& in_name);
+
+    static const char BUILTIN_COL[];
+
+    ArenaAlloc::Alloc<char> cn_alloc;
+    language cn_language;
+    std::vector<string_fragment> cn_builtin_names{string_fragment(BUILTIN_COL)};
+    std::vector<string_fragment> cn_names;
+    std::unordered_map<
+        string_fragment,
+        size_t,
+        frag_hasher,
+        std::equal_to<string_fragment>,
+        ArenaAlloc::Alloc<std::pair<const string_fragment, size_t>>>
+        cn_name_counters;
+};
+
+#endif