src/parser.y

   1 /* Asset Package Compiler */
   2 %code requires{
   3   #include <stdint.h>
   4   #include <unitypes.h>
   5   #include "apc.h"
   6 }
   7 %{
   8   #include <stdio.h>
   9   #include <string.h>
  10   #include <dirent.h>
  11
  12   extern int lexer_init(); //?
  13   extern int lexer(); //?
  14   extern void pop_cdat(void);
  15   extern void push_cdat(uint8_t*);
  16   extern void insert_vdat(void);
  17   extern void insert_refid(int);
  18   extern void insert_set_name(uint8_t*);
  19   extern void insert_set_namelist(uint8_t*);
  20   extern void insert_link_name(uint8_t*);
  21   extern void insert_map(int, uint8_t*, int, int, uint8_t*);
  22   extern void insert_mlink(uint8_t*, int);
  23   extern void insert_vlink(uint8_t*, int);
  24   extern void insert_framesheet(uint_t* int, int, int,int, uint8_t*);
  25
  26   #define yylex lexer
  27
  28
  29   void yyerror();
  30 %}
  31 %define parse.error verbose
  32 %define lr.type ielr
  33 %glr-parser
  34
  35 %union {
  36   int ref;
  37   int val;
  38   uint8_t *str;
  39   struct name* name;
  40   void *voidp;
  41 }
  42
  43  //operators
  44 %token         CLOPEN    // (
  45 %token         CLCLOSE   // )
  46 %token         MOPEN     // ~
  47 %token         HB
  48 %token         ROOT
  49 %token         SS
  50 %token         LINK      //#
  51 %token         SCLOSE
  52 %token         CHILD
  53 //terminals
  54 %token <val> NUM
  55 %token <str> PATH
  56 %token <ref> REF
  57 %token <val> HEIGHT
  58 %token <val> WIDTH
  59 %token <val> D
  60 %token <name> NAME
  61 %token SHIFT
  62 //nonterminals
  63 %type <int> ref_id
  64  /* Syntax Directed Translation Scheme of the APC grammar */
  65
  66 /* Rules */
  67 %%
  68 cdat_buf:
  69 class_block
  70 ;
  71
  72 class:
  73 NAME CLOPEN {push_cdat($1);} class_block CLCLOSE              {pop_cdat();};
  74 ;
  75
  76 class_list:
  77 class_list class
  78 | class
  79 ;
  80
  81 class_block:
  82 class_list
  83 | class_list statement_list
  84 | statement_list
  85 ;
  86
  87 statement_list:
  88 statement_list statement
  89 | statement
  90 ;
  91
  92 statement:
  93 vdat_statement
  94 | map_statement
  95 | ref_statement
  96 | olink
  97 ;
  98
  99 ref_statement:
 100 set_namelist ref_id                                  {insert_set_refid($2);};
 101 ;
 102
 103 link_namelist:
 104 link_namelist NAME                                {insert_link_name($2);};
 105 | NAME                                            {};
 106 ;
 107
 108
 109 set_namelist:
 110 set_namelist NAME                                     {insert_set_name($2);};
 111 | NAME                                             {insert_set_namelist($1);};
 112 ;
 113
 114 map_statement:
 115 set_namelist MOPEN map
 116 | set_namelist MOPEN mlink
 117 ;
 118
 119 map:
 120 NAME NUM NUM PATH                            {insert_map($1, 0, $3, $4, 0, $5);};
 121 | NAME PATH                                  {insert_map($1, 0, 0, 0, 0, $2);};
 122 | NAME D PATH                                {insert_map($1, $2, 0, 0, 0, $3);};
 123 | NAME D NUM NUM PATH                        {insert_map($1, $2, $3, $4, 0, $5);};
 124 | NAME NUM NUM ref_id PATH                   {insert_map($1, 0, $2, $3, $4, $5);};
 125 | NAME ref_id PATH                           {insert_map($1, 0, 0, 0, $2, $3);};
 126 | NAME D ref_id PATH                         {insert_map($1, $2, 0, 0, $3, $4);};
 127 | NAME D NUM NUM ref_id PATH                 {insert_map($1, $2, $3, $4, $5, $6);};
 128 ;
 129
 130 //shift list_namelist name > reduce mlink
 131 mlink:
 132 MOPEN LINK NAME LINK link_namelist PATH    {insert_mlink($4, 0);     };
 133 | MOPEN LINK link_namelist PATH            {insert_mlink(NULL, 0);   };
 134 | MOPEN LINK ref_id PATH                   {insert_mlink(NULL, $4);  };
 135 | MOPEN LINK NAME LINK ref_id PATH         {insert_mlink($4,$6);     };
 136 ;
 137
 138 //shift list_namelist name > reduce vlink
 139 vlink:
 140 LINK NAME LINK link_namelist PATH             {insert_vlink($2, 0); };
 141 | LINK link_namelist PATH                     {insert_vlink(NULL, 0);};
 142 | LINK REF PATH                               {insert_vlink(NULL, $2);};//vdat of ref
 143 | LINK NAME LINK REF PATH                     {insert_vlink($2, $4);};//modelname of ref
 144 ;
 145
 146
 147 olink:
 148 set_namelist MOPEN REF
 149 ;
 150
 151 ref_id:
 152 LINK REF                                            {$$ = $2;};
 153 ;
 154
 155
 156 vdat_statement:
 157 set_namelist SS spritesheet_statement
 158 | set_namelist SS vlink
 159 ;
 160
 161 spritesheet_statement:
 162 NAME D HEIGHT WIDTH PATH                     {insert_framesheet($1, $2, $3, $4, 0, $5);};
 163 | NAME D PATH                                {insert_framesheet($1, $2, 0, 0, 0, $3);};
 164 | NAME HEIGHT WIDTH PATH                     {insert_framesheet($1, 0, $2, $3, 0, $4);};
 165 | NAME PATH                                  {insert_framesheet($1, 0, 0, 0, 0, $2);};
 166 | NAME D HEIGHT WIDTH ref_id PATH            {insert_framesheet($1, $2, $3, $4, $5, $6);};
 167 | NAME D ref_id PATH                         {insert_framesheet($1, $2, 0, 0, $3, $4);};
 168 | NAME HEIGHT WIDTH ref_id PATH              {insert_framesheet($1, 0, $2, $3, $4, $5);};
 169 | NAME ref_id PATH                           {insert_framesheet($1, 0, 0, 0, $2, $3);};
 170 ;
 171
 172 %%
 173
 174 void
 175 yyerror (char const *s)
 176 { fprintf(stderr, "%s\n", s);
 177 }