feat(grid): copy query SQL without ordinary comments

apps/desktop/src/lib/sql/sqlWithoutCommentsForCopy.ts

@@ -0,0 +1,38 @@
+import { BACKSLASH_ESCAPE_STRING_DIALECTS } from "@/lib/sql/sqlStatementRanges";
+import { resolveSqlDialectId } from "@/lib/sql/semantic/dialect";
+import { tokenizeSqlSemantic } from "@/lib/sql/semantic/tokens";
+import type { DatabaseType } from "@/types/database";
+
+function keepSqlComment(text: string): boolean {
+  // Optimizer hints and MySQL executable comments are sent to the engine.
+  return text.startsWith("/*+") || text.startsWith("/*!");
+}
+
+function collapseBlankLines(whitespace: string): string {
+  return whitespace.replace(/[ \t]+(?=\r?\n)/g, "").replace(/(\r?\n)(?:\r?\n)+/g, "$1");
+}
+
+export function sqlWithoutCommentsForCopy(sql: string, databaseType?: DatabaseType): string {
+  if (!sql) return "";
+  const dialectId = resolveSqlDialectId({ databaseType });
+  const mysqlLike = dialectId === "mysql" || dialectId === "doris";
+  const tokens = tokenizeSqlSemantic(sql, dialectId, {
+    mysqlDashCommentRequiresWhitespace: mysqlLike,
+    mysqlBackslashEscape: !!databaseType && BACKSLASH_ESCAPE_STRING_DIALECTS.has(databaseType),
+  });
+
+  let output = "";
+  let cursor = 0;
+  let whitespace = "";
+  for (const token of tokens) {
+    whitespace += sql.slice(cursor, token.span.start);
+    cursor = token.span.end;
+    if (token.kind === "comment" && !keepSqlComment(token.text)) {
+      whitespace += token.text.replace(/[^\r\n]/g, "") || " ";
+      continue;
+    }
+    output += (output ? collapseBlankLines(whitespace) : "") + token.text;
+    whitespace = "";
+  }
+  return output;
+}