48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
#ident "$Header: /proj/irix6.5.7m/isms/irix/cmd/icrash/include/RCS/variable.h,v 1.5 1999/05/25 19:21:38 tjm Exp $"
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/* Struct to hold information about eval variables
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*/
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typedef struct variable_s {
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btnode_t v_bt; /* Must be first */
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int v_flags;
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char *v_exp; /* What was entered on command line */
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char *v_typestr; /* Actual type string after eval() call */
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node_t *v_node;
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} variable_t;
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#define v_left v_bt.bt_left
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#define v_right v_bt.bt_right
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#define v_name v_bt.bt_key
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/* Flag values
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*/
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#define V_PERM 0x001 /* can't be unset - can be modified */
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#define V_DEFAULT 0x002 /* set at startup */
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#define V_NOMOD 0x004 /* cannot be modified */
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#define V_TYPEDEF 0x008 /* contains typed data */
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#define V_REC_STRUCT 0x010 /* direct ref to struct/member (not pointer) */
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#define V_STRING 0x020 /* contains ASCII string (no type) */
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#define V_COMMAND 0x040 /* contains command string (no type) */
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#define V_OPTION 0x080 /* contains option flag (e.g., $hexints) */
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#define V_PERM_NODE 0x100 /* Don't free node after setting variable */
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/* Variable table struct
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*/
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typedef struct vtab_s {
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variable_t *vt_root;
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int vt_count;
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} vtab_t;
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extern vtab_t *vtab; /* Pointer to table of eval variable info */
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/* Function Prototypes
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*/
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variable_t *make_variable(char *, char *, node_t *, int);
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void clean_variable(variable_t *);
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void free_variable(variable_t *);
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void init_variables(vtab_t *);
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int set_variable(vtab_t *, char *, char *, node_t *, int);
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int unset_variable(vtab_t *, variable_t *);
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variable_t *find_variable(vtab_t *, char *, int);
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