1 /* Asset Package Compiler */
7 typedef struct class_state_t yycstate;
8 struct frame_spec_t { apc_facing d; int w, h; };
11 yycstate* yycstate_new(void);
12 void yycstate_delete(yycstate*);
21 struct class_state_t {
23 ir_class class_stack[];
26 extern long sys_pagesize;
28 static void yyerror(yycstate*, char const*);
29 static inline ir_class yyclass_push(yycstate*, ir_class);
30 static inline ir_class yyclass_pop(yycstate*);
31 /* Stack-based class handler */
32 #define yyclass(CS) (*(CS->csp))
33 #define yyclassld(CS) (ir_classld_from_class(yyclass(CS)))
35 %define parse.error verbose
38 %define api.push-pull push
39 %parse-param {yycstate* cs}
49 struct frame_spec_t frame_spec;
67 %type<ld> set_ld set_link
68 %type<frame_spec> frame_spec
70 /* Syntax Directed Translation Scheme of the APC grammar */
73 | class_list statement_list
83 NAME CLOPEN { yyclass_push(cs,ir_class_addchild(yyclass(cs), $1)); }
85 CLCLOSE { yyclass_pop(cs); }
89 statement_list statement
94 set_spec data_spec REF PATH { ir_data_assign_path($2,$4); ir_set_assign_data($1,$2); ir_set_assign_ref($1,$3); }
95 | set_spec data_spec PATH { ir_data_assign_path($2,$3); ir_set_assign_data($1,$2); }
96 | set_spec REF PATH { ir_set_assign_ref($1,$2); }
100 SS NAME frame_spec { $$ = ir_framesheet($2,$3.d,$3.w,$3.h); }
101 | MAP NAME frame_spec { $$ = ir_mapsheet($2,$3.d,$3.w,$3.h); }
102 | AUDIO NAME { $$ = ir_audio($2); }
103 | LINK set_ld { $$ = ir_link(OLINK, $2, NULL); }
104 | LINK set_ld MAP { $$ = ir_link(MLINK, $2,NULL); }
105 | LINK set_ld MAP NAME { $$ = ir_link(MLINK, $2,$4); }
106 | LINK set_ld SS { $$ = ir_link(VLINK, $2,NULL); }
107 | LINK set_ld SS NAME { $$ = ir_link(VLINK, $2,$4); }
108 | LINK set_ld AUDIO { $$ = ir_link(ALINK, $2,NULL); }
109 | LINK set_ld AUDIO NAME { $$ = ir_link(ALINK, $2,$4); }
113 set_spec NAME { $$ = ir_set_addchild($1,$2); }
114 | NAME { $$ = ir_class_addset(yyclass(cs),$1); }
118 set_link NAME { $$ = ir_setld_addchild($1,$2); }
119 | NAME { $$ = ir_setld_from_classld(yyclassld(cs),$1); }
123 set_link { $$ = $1; }
124 | REF { $$ = ir_setld_from_ref($1); }
128 NUM NUM { $$ = (struct frame_spec_t) {SFACE,$1,$2}; }
129 | FACING { $$ = (struct frame_spec_t) {$1,0,0}; }
130 | FACING NUM NUM { $$ = (struct frame_spec_t) {$1,$2,$3}; }
140 { fprintf(stderr, "%s\n", s); }
142 yycstate* yycstate_new
144 { yycstate* class_state;
145 class_state = (yycstate*) malloc((size_t) sys_pagesize);
146 if(class_state == NULL)
147 { yyerror(class_state, "Memory allocation error.");
150 class_state->csp = class_state->class_stack;
151 *(class_state->csp) = ir_class_root();
158 { return *((cs->csp)--); }
161 ir_class yyclass_push
165 { return *++(cs->csp) = class; }
168 ( yycstate* class_state )
169 { free(class_state); }