src/parser.y

   1 /* Asset Package Compiler */
   2 %{
   3   #include <stdio.h>
   4   #include <string.h>
   5   #include <dirent.h>
   6   #include "sprite.h"
   7   #include "symbol.h"
   8   #include <png.h>
   9
  10
  11   extern int lexer_init();
  12   extern int lexer();
  13   #define yylex lexer
  14
  15
  16   void yyerror();
  17 %}
  18 %define parse.error verbose
  19 %define lr.type ielr
  20 %define api.value.type union
  21 %token <int>   NUM
  22 %token <char*> WORD
  23 //operators
  24 %token         PROTOCLASS //+
  25 %token         SIBS       //|
  26 %token         FNAME      //!
  27  //nonterminal types
  28 %type <int>    fd
  29 %type <int*>   fdlist
  30
  31 /* %token <str> EXT */
  32 /* %token <str> FW */
  33 /* %token <str> SPR */
  34 /* %token CC */
  35 /*  /\* Rules *\/ */
  36 /* %% */
  37 /* SS: SPR '/' MD '.' EXT */
  38 /* MD: CC '_' FW */
  39 /* | FW */
  40 /* | CC */
  41
  42 /* Rules */
  43 %%
  44
  45 object_defs:
  46   %empty
  47 | arch_id object_defs
  48 ;
  49
  50 arch_id:
  51   archetype
  52 | arch_id_ref
  53 ;
  54
  55 arch_id_list:
  56   arch_id
  57 | arch_id arch_id_list
  58 ;
  59
  60 archetype:
  61   PROTOCLASS label arch_id_list SIBS arch_id_list
  62 | PROTOCLASS label arch_id_list
  63 | label arch_id_ref vdat
  64 ;
  65
  66 label:
  67   WORD
  68 ;
  69
  70 arch_id_ref:
  71   NUM
  72 ;
  73
  74 vdat:
  75   spritesheet
  76 ;
  77
  78 spritesheet:
  79   fdlist
  80 ;
  81
  82 fdlist:
  83   fd
  84 | fd fdlist
  85 ;
  86
  87 fd:
  88   FNAME WORD
  89 | NUM;
  90 %%
  91
  92 int
  93 main(int argc, char** argv)
  94 { /* Parse cmd line arguments */
  95   lexer_init();
  96   yyparse(); /* runs handle_fname for each filename */
  97   return 0;
  98 }
  99
 100 void
 101 yyerror (char const *s)
 102 { fprintf(stderr, "%s\n", s);
 103 }