構造体定義書

should be identical, except for str_ptr

struct stab

No.	名称	属性	説明
1	stab		should be identical, except for str_ptr
	str_ptr	STBP *	pointer to malloced string
	str_len	STRLEN	allocated size
	str_nval	double	numeric value, if any
	str_useful	long	is this search optimization effective?
	str_args	ARG *	list of args for interpreted string
	str_hash	HASH *	string represents an assoc array (stab?)
	str_array	ARRAY *	string represents an array
	str_cmd	CMD *	command for this source line
	stb_stab	STAB *	magic stab for magic "key" string
	stb_stash	HASH *	which symbol table this stab is in
	stb_u
	str_u
	str_cur	STRLEN	length of str_ptr as a C string
	str_magic	STR *	while free, link to next free str
	str_pok	unsigned char	state of str_ptr
	str_nok	unsigned char	state of str_nval
	str_rare	unsigned char	used by search strings
	str_state	unsigned char	one of SS_* below
	str_tainted	bool	1 if possibly under control of $<

stab