brum.h

   1 #include "lists.h"
   2
   3 /* cond.h */
   4 int yylex (void);
   5 void yyerror (char const *);
   6
   7 struct tree {
   8         enum {
   9                 ST_IF,
  10                 ST_COND,
  11                 ST_BLOCK,
  12                 ST_ASS,
  13                 ST_LEAF,
  14                 ST_EMPTY,
  15                 ST_ARROW,
  16                 ST_OP
  17         } st;   /* subtree type */
  18         union {
  19                 struct {
  20                         struct tree* c; /* condition */
  21                         struct tree* i; /* if */
  22                         struct tree* e; /* else */
  23                 } tif;
  24
  25                 struct {
  26                         int op;
  27                         enum {
  28                                 OP_REL,
  29                                 OP_BOOL
  30                         } type;
  31                         struct tree* left;
  32                         struct tree* right;
  33                 } cond; /* binary operator */
  34
  35                 struct {
  36                         struct tree* head;
  37                         struct tree* tail;
  38                 } block;
  39
  40                 struct {
  41                         struct tree* left;
  42                         struct tree* right;
  43                 } ass;
  44
  45                 struct {
  46                         enum {
  47                                 L_VAR,
  48                                 L_CONST,
  49                         } type;
  50                         char* value;
  51                 } leaf;
  52
  53                 struct {
  54                         char* kw_left;
  55                         char* kw_right;
  56                         struct tree* s;
  57                 } arrow;
  58
  59                 struct {
  60                         int op;
  61                         struct tree* left;
  62                         struct tree* right;
  63                 } op;
  64
  65         } pt;
  66 };
  67
  68 struct tree* input_tree;
  69
  70 /* lex.c */
  71 #define CC(a,b) ((a<<8)|b)
  72 void* xmalloc(size_t size);
  73 char* xstrdup(char* s);
  74 void __attribute__ ((noreturn)) die(char* msg, ...);
  75 void read_conf(char* filename);
  76 int line;
  77 FILE* conf;
  78
  79 /* int.c */
  80 struct variable {
  81         char* name;
  82         char* value;
  83         int modified;
  84         struct variable* next;
  85 };
  86
  87 struct hlist {
  88         struct node car;
  89         char* name;
  90         char* value;
  91 };
  92
  93 struct email {
  94         struct list* headers;
  95 };
  96
  97 struct action {
  98         char* l;
  99         char* r;
 100         char* s;
 101         struct email e;
 102 };
 103
 104 struct variable** var_hash;
 105
 106 void print_tree(struct tree* t, int ind);
 107 void interp(struct tree* t, struct variable** hash);
 108 struct variable** new_var_hash(void);
 109 void print_vars(struct variable** hash);
 110 void save_current_headers(struct variable** hash);
 111
 112 /* ham.c */
 113 struct list* current_headers;
 114 struct list* make_hlist(void);
 115 void print_headers(struct list* l);
 116 void do_action(struct action* a);