Function exec_command_endif

src/bin/psql/command.c:1826–1861

* \endif -- ends an \if...\endif block */

 * \endif -- ends an \if...\endif block
 */
static backslashResult
exec_command_endif(PsqlScanState scan_state, ConditionalStack cstack,
				   PQExpBuffer query_buf)
{
	bool		success = true;

	switch (conditional_stack_peek(cstack))
	{
		case IFSTATE_TRUE:
		case IFSTATE_ELSE_TRUE:
			/* Close the \if block, keeping the query text */
			success = conditional_stack_pop(cstack);
			Assert(success);
			break;
		case IFSTATE_FALSE:
		case IFSTATE_IGNORED:
		case IFSTATE_ELSE_FALSE:

			/*
			 * Discard any query text added by the just-skipped branch.
			 */
			discard_query_text(scan_state, cstack, query_buf);

			/* Close the \if block */
			success = conditional_stack_pop(cstack);
			Assert(success);
			break;
		case IFSTATE_NONE:
			/* no \if to end */
			pg_log_error("\\endif: no matching \\if");
			success = false;
			break;
	}

	return success ? PSQL_CMD_SKIP_LINE : PSQL_CMD_ERROR;
}

/*
 * \l -- list databases