YQL-19747 Complete folder, table and cluster names

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- Related to `YQL-19747`
- On top of https://github.com/ytsaurus/ytsaurus/pull/1253
- Related to https://github.com/ydb-platform/ydb/issues/9056
- Related to https://github.com/vityaman/ydb/issues/14
- Related to https://github.com/vityaman/ydb/issues/35
- Related to https://github.com/vityaman/ydb/issues/40

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Pull Request resolved: https://github.com/ytsaurus/ytsaurus/pull/1257
commit_hash:0b842abb27184c88b8177beeea29fb1ea86b7a04

1 files changed, 25 insertions, 0 deletions

diff --git a/yql/essentials/sql/v1/complete/core/input.cpp b/yql/essentials/sql/v1/complete/core/input.cpp
new file mode 100644
index 00000000000..8eca3a28ee8
--- /dev/null
+++ b/yql/essentials/sql/v1/complete/core/input.cpp
@@ -0,0 +1,25 @@
+#include "input.h"
+
+#include <util/generic/yexception.h>
+
+namespace NSQLComplete {
+
+    TCompletionInput SharpedInput(TString& text) {
+        constexpr char delim = '#';
+
+        size_t pos = text.find_first_of(delim);
+        if (pos == TString::npos) {
+            return {
+                .Text = text,
+            };
+        }
+
+        Y_ENSURE(!TStringBuf(text).Tail(pos + 1).Contains(delim));
+        text.erase(std::begin(text) + pos);
+        return {
+            .Text = text,
+            .CursorPosition = pos,
+        };
+    }
+
+} // namespace NSQLComplete