src/parser.y

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