Function exec_command_slash_command_help

src/bin/psql/command.c:2791–2815

* \? -- print help about backslash commands */

 * \? -- print help about backslash commands
 */
static backslashResult
exec_command_slash_command_help(PsqlScanState scan_state, bool active_branch)
{
	if (active_branch)
	{
		char	   *opt0 = psql_scan_slash_option(scan_state,
												  OT_NORMAL, NULL, false);

		if (!opt0 || strcmp(opt0, "commands") == 0)
			slashUsage(pset.popt.topt.pager);
		else if (strcmp(opt0, "options") == 0)
			usage(pset.popt.topt.pager);
		else if (strcmp(opt0, "variables") == 0)
			helpVariables(pset.popt.topt.pager);
		else
			slashUsage(pset.popt.topt.pager);

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

	return PSQL_CMD_SKIP_LINE;
}


/*