Function exec_command_pset

src/bin/psql/command.c:2171–2220

* \pset -- set printing parameters */

 * \pset -- set printing parameters
 */
static backslashResult
exec_command_pset(PsqlScanState scan_state, bool active_branch)
{
	bool		success = true;

	if (active_branch)
	{
		char	   *opt0 = psql_scan_slash_option(scan_state,
												  OT_NORMAL, NULL, false);
		char	   *opt1 = psql_scan_slash_option(scan_state,
												  OT_NORMAL, NULL, false);

		if (!opt0)
		{
			/* list all variables */

			int			i;
			static const char *const my_list[] = {
				"border", "columns", "csv_fieldsep", "expanded", "fieldsep",
				"fieldsep_zero", "footer", "format", "linestyle", "null",
				"numericlocale", "pager", "pager_min_lines",
				"recordsep", "recordsep_zero",
				"tableattr", "title", "tuples_only",
				"unicode_border_linestyle",
				"unicode_column_linestyle",
				"unicode_header_linestyle",
				NULL
			};

			for (i = 0; my_list[i] != NULL; i++)
			{
				char	   *val = pset_value_string(my_list[i], &pset.popt);

				printf("%-24s %s\n", my_list[i], val);
				free(val);
			}

			success = true;
		}
		else
			success = do_pset(opt0, opt1, &pset.popt, pset.quiet);

		free(opt0);
		free(opt1);
	}
	else
		ignore_slash_options(scan_state);

	return success ? PSQL_CMD_SKIP_LINE : PSQL_CMD_ERROR;
}

/*
 * \q or \quit -- exit psql