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comparison lwlib/lw_expr.h @ 346:a82c55070624

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Added expression parsing infrastructure and misc fixes
author lost@starbug
date Sat, 27 Mar 2010 19:04:03 -0600
parents 7b4123dce741
children 1649bc7bda5a
comparison
equal deleted inserted replaced
345:7416c3f9c321 346:a82c55070624
43 lw_expr_oper_bwor, // bitwise or 43 lw_expr_oper_bwor, // bitwise or
44 lw_expr_oper_bwxor, // bitwise xor 44 lw_expr_oper_bwxor, // bitwise xor
45 lw_expr_oper_and, // boolean and 45 lw_expr_oper_and, // boolean and
46 lw_expr_oper_or, // boolean or 46 lw_expr_oper_or, // boolean or
47 lw_expr_oper_neg, // unary negation, 2's complement 47 lw_expr_oper_neg, // unary negation, 2's complement
48 lw_expr_oper_com // unary 1's complement 48 lw_expr_oper_com, // unary 1's complement
49 lw_expr_oper_none = 0
49 }; 50 };
50 51
51 #ifdef ___lw_expr_c_seen___ 52 #ifdef ___lw_expr_c_seen___
52 53
53 typedef struct lw_expr_priv * lw_expr_t; 54 typedef struct lw_expr_priv * lw_expr_t;
64 int value; // integer value 65 int value; // integer value
65 void *value2; // misc pointer value 66 void *value2; // misc pointer value
66 struct lw_expr_opers *operands; // ptr to list of operands (for operators) 67 struct lw_expr_opers *operands; // ptr to list of operands (for operators)
67 }; 68 };
68 69
69 typedef lw_expr_t lw_expr_fn_t(int t, void *ptr); 70 typedef lw_expr_t lw_expr_fn_t(int t, void *ptr, void *priv);
70 typedef lw_expr_t lw_expr_fn2_t(char *var); 71 typedef lw_expr_t lw_expr_fn2_t(char *var, void *priv);
71 72 typedef lw_expr_t lw_expr_fn3_t(char **p, void *priv);
72 73
73 #else /* def ___lw_expr_c_seen___ */ 74 #else /* def ___lw_expr_c_seen___ */
74 75
75 typedef void * lw_expr_t; 76 typedef void * lw_expr_t;
76 77
79 extern lw_expr_t lw_expr_copy(lw_expr_t E); 80 extern lw_expr_t lw_expr_copy(lw_expr_t E);
80 extern void lw_expr_add_operand(lw_expr_t E, lw_expr_t O); 81 extern void lw_expr_add_operand(lw_expr_t E, lw_expr_t O);
81 extern lw_expr_t lw_expr_build(int exprtype, ...); 82 extern lw_expr_t lw_expr_build(int exprtype, ...);
82 extern void lw_expr_print(lw_expr_t E); 83 extern void lw_expr_print(lw_expr_t E);
83 extern int lw_expr_compare(lw_expr_t E1, lw_expr_t E2); 84 extern int lw_expr_compare(lw_expr_t E1, lw_expr_t E2);
84 extern void lw_expr_simplify(lw_expr_t E); 85 extern void lw_expr_simplify(lw_expr_t E, void *priv);
85 86
86 typedef lw_expr_t lw_expr_fn_t(int t, void *ptr); 87 typedef lw_expr_t lw_expr_fn_t(int t, void *ptr, void *priv);
87 typedef lw_expr_t lw_expr_fn2_t(char *var); 88 typedef lw_expr_t lw_expr_fn2_t(char *var, void *priv);
89 typedef lw_expr_t lw_expr_fn3_t(char **p, void *priv);
88 90
89 extern void lw_expr_set_special_handler(lw_expr_fn_t *fn); 91 extern void lw_expr_set_special_handler(lw_expr_fn_t *fn);
90 extern void lw_expr_set_var_handler(lw_expr_fn2_t *fn); 92 extern void lw_expr_set_var_handler(lw_expr_fn2_t *fn);
93 extern void lw_expr_set_term_parser(lw_expr_fn3_t *fn);
94
95 extern lw_expr_t lw_expr_parse(char **p, void *priv);
91 96
92 #endif /* def ___lw_expr_c_seen___ */ 97 #endif /* def ___lw_expr_c_seen___ */
93 98
94 #endif /* ___lw_expr_h_seen___ */ 99 #endif /* ___lw_expr_h_seen___ */