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_refid(int);
  19   extern void insert_set_name(struct name*);
  20   extern void insert_set_namelist(struct name*);
  21   extern void insert_link_name(struct name*);
  22   extern void insert_map(struct name*,int, int, int, int, uint8_t*);
  23   extern void insert_mlink(struct name*, int);
  24   extern void insert_vlink(struct name*, int);
  25   extern void insert_framesheet(struct name* ,int, int, int,int, uint8_t*);
  26
  27   #define yylex lexer
  28
  29
  30   void yyerror();
  31 %}
  32 %define parse.error verbose
  33 %define lr.type ielr
  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 //nonterminals
  62 %type <val> ref_id
  63  /* Syntax Directed Translation Scheme of the APC grammar */
  64
  65 /* Rules */
  66 %%
  67 cdat_buf:
  68 class_block
  69 ;
  70
  71 class:
  72 NAME CLOPEN {push_cdat($1);} class_block CLCLOSE              {pop_cdat();};
  73 ;
  74
  75 class_list:
  76 class_list class
  77 | class
  78 ;
  79
  80 class_block:
  81 class_list
  82 | class_list statement_list
  83 | statement_list
  84 ;
  85
  86 statement_list:
  87 statement_list statement
  88 | statement
  89 ;
  90
  91 statement:
  92 vdat_statement
  93 | map_statement
  94 | ref_statement
  95 | olink
  96 ;
  97
  98 ref_statement:
  99 set_namelist ref_id                                  {insert_refid($2);};
 100 ;
 101
 102 link_namelist:
 103 link_namelist NAME                                {insert_link_name($2);};
 104 | NAME                                            {};
 105 ;
 106
 107
 108 set_namelist:
 109 set_namelist NAME                                     {insert_set_name($2);};
 110 | NAME                                             {insert_set_namelist($1);};
 111 ;
 112
 113 map_statement:
 114 set_namelist MOPEN map
 115 | set_namelist MOPEN mlink
 116 ;
 117
 118 map:
 119 NAME NUM NUM PATH                            {insert_map($1,  0, $3,  0,  0,  $4);};
 120 | NAME PATH                                  {insert_map($1,  0,  0,  0,  0,  $2);};
 121 | NAME D PATH                                {insert_map($1, $2,  0,  0,  0,  $3);};
 122 | NAME D NUM NUM PATH                        {insert_map($1, $2, $3, $4,  0,  $5);};
 123 | NAME NUM NUM ref_id PATH                   {insert_map($1,  0, $2, $3, $4,  $5);};
 124 | NAME ref_id PATH                           {insert_map($1,  0,  0,  0, $2,  $3);};
 125 | NAME D ref_id PATH                         {insert_map($1, $2,  0,  0, $3,  $4);};
 126 | NAME D NUM NUM ref_id PATH                 {insert_map($1, $2, $3, $4, $5,  $6);};
 127 ;
 128
 129 //shift list_namelist name > reduce mlink
 130 mlink:
 131 MOPEN LINK NAME LINK link_namelist PATH    {insert_mlink($3, 0);     };
 132 | MOPEN LINK link_namelist PATH            {insert_mlink(NULL, 0);   };
 133 | MOPEN LINK ref_id PATH                   {insert_mlink(NULL, $3);  };
 134 | MOPEN LINK NAME LINK ref_id PATH         {insert_mlink($3,$5);     };
 135 ;
 136
 137 //shift list_namelist name > reduce vlink
 138 vlink:
 139 LINK NAME LINK link_namelist PATH             {insert_vlink($2, 0); };
 140 | LINK link_namelist PATH                     {insert_vlink(NULL, 0);};
 141 | LINK REF PATH                               {insert_vlink(NULL, $2);};//vdat of ref
 142 | LINK NAME LINK REF PATH                     {insert_vlink($2, $4);};//modelname of ref
 143 ;
 144
 145
 146 olink:
 147 set_namelist MOPEN REF
 148 ;
 149
 150 ref_id:
 151 LINK REF                                            {$$ = $2;};
 152 ;
 153
 154
 155 vdat_statement:
 156 set_namelist SS spritesheet_statement
 157 | set_namelist SS vlink
 158 ;
 159
 160 spritesheet_statement:
 161 NAME D HEIGHT WIDTH PATH                     {insert_framesheet($1, $2, $3, $4, 0, $5);};
 162 | NAME D PATH                                {insert_framesheet($1, $2, 0, 0, 0, $3);};
 163 | NAME HEIGHT WIDTH PATH                     {insert_framesheet($1, 0, $2, $3, 0, $4);};
 164 | NAME PATH                                  {insert_framesheet($1, 0, 0, 0, 0, $2);};
 165 | NAME D HEIGHT WIDTH ref_id PATH            {insert_framesheet($1, $2, $3, $4, $5, $6);};
 166 | NAME D ref_id PATH                         {insert_framesheet($1, $2, 0, 0, $3, $4);};
 167 | NAME HEIGHT WIDTH ref_id PATH              {insert_framesheet($1, 0, $2, $3, $4, $5);};
 168 | NAME ref_id PATH                           {insert_framesheet($1, 0, 0, 0, $2, $3);};
 169 ;
 170
 171 %%
 172
 173 void
 174 yyerror (char const *s)
 175 { fprintf(stderr, "%s\n", s);
 176 }