構造体定義書 - ARG

typedef struct

No.	名称	属性	説明
1	ARG_STRUCT
	arg	char *	what user enters on command line
	doc	char *	printed by help message
	available	BOOL	offered to users; set this to FALSE if option never used
	on_by_default	BOOL	TRUE means enabled without having to be argument
	standard_turns_on	BOOL	TRUE means enabled by -standard argument
	actual_value	BOOL	value used during lexical analysis, set by main()

ARG_STRUCT