Usermode/Libraries/libspiderscript.so_src/tokens.h

   1 /*
   2  */
   3 #ifndef _TOKENS_H_
   4 #define _TOKENS_H_
   5
   6 #include <setjmp.h>
   7
   8 // Make the scope character ('.') be a symbol, otherwise it's just
   9 // a ident character
  10 #define USE_SCOPE_CHAR  1
  11
  12 // === TYPES ===
  13 typedef struct
  14 {
  15         // Lexer State
  16         const char      *BufStart;
  17         const char      *CurPos;
  18
  19         char    *Filename;
  20
  21          int    LastLine;
  22          int    LastToken, LastTokenLen;
  23         const char      *LastTokenStr;
  24
  25          int    NextLine;
  26          int    NextToken, NextTokenLen;
  27         const char      *NextTokenStr;
  28
  29          int    CurLine;
  30          int    Token, TokenLen;
  31         const char      *TokenStr;
  32
  33         jmp_buf JmpTarget;
  34          int    ErrorHit;
  35 }       tParser;
  36
  37 // === FUNCTIONS ===
  38  int    GetToken(tParser *File);
  39 void    PutBack(tParser *File);
  40  int    LookAhead(tParser *File);
  41
  42 // === CONSTANTS ===
  43 enum eTokens
  44 {
  45         TOK_INVAL,
  46         TOK_EOF,
  47
  48         // Primitives
  49         TOK_STR,
  50         TOK_INTEGER,
  51         TOK_REAL,
  52         TOK_VARIABLE,
  53         TOK_IDENT,
  54
  55         // Reserved Words
  56         // - Definitions
  57         TOK_RWD_FUNCTION,
  58         TOK_RWD_NAMESPACE,
  59         // - Control Flow
  60         TOK_RWD_NEW,
  61         TOK_RWD_RETURN,
  62         TOK_RWD_BREAK,
  63         TOK_RWD_CONTINUE,
  64         // - Blocks
  65         TOK_RWD_IF,
  66         TOK_RWD_ELSE,
  67         TOK_RWD_DO,
  68         TOK_RWD_WHILE,
  69         TOK_RWD_FOR,
  70         // - Types
  71         TOK_RWD_VOID,
  72         TOK_RWD_OBJECT,
  73         TOK_RWD_OPAQUE,
  74         TOK_RWD_STRING,
  75         TOK_RWD_INTEGER,
  76         TOK_RWD_REAL,
  77
  78         //
  79         TOK_ASSIGN,
  80         TOK_SEMICOLON,
  81         TOK_COMMA,
  82         TOK_SCOPE,
  83         TOK_ELEMENT,
  84
  85         // Comparisons
  86         TOK_EQUALS,
  87         TOK_LT, TOK_LTE,
  88         TOK_GT, TOK_GTE,
  89
  90         // Operations
  91         TOK_BWNOT,      TOK_LOGICNOT,
  92         TOK_DIV,        TOK_MUL,
  93         TOK_PLUS,       TOK_MINUS,
  94         TOK_SHL,        TOK_SHR,
  95         TOK_LOGICAND,   TOK_LOGICOR,    TOK_LOGICXOR,
  96         TOK_AND,        TOK_OR, TOK_XOR,
  97
  98         // Assignment Operations
  99         TOK_INCREMENT,          TOK_DECREMENT,
 100         TOK_ASSIGN_DIV,         TOK_ASSIGN_MUL,
 101         TOK_ASSIGN_PLUS,        TOK_ASSIGN_MINUS,
 102         TOK_ASSIGN_SHL,         TOK_ASSIGN_SHR,
 103         TOK_ASSIGN_LOGICAND,    TOK_ASSIGN_LOGICOR,     TOK_ASSIGN_LOGXICOR,
 104         TOK_ASSIGN_AND,         TOK_ASSIGN_OR,  TOK_ASSIGN_XOR,
 105
 106         TOK_PAREN_OPEN,         TOK_PAREN_CLOSE,
 107         TOK_BRACE_OPEN,         TOK_BRACE_CLOSE,
 108         TOK_SQUARE_OPEN,        TOK_SQUARE_CLOSE,
 109
 110         TOK_LAST
 111 };
 112
 113 #define TOKEN_GROUP_TYPES       TOK_RWD_VOID:\
 114         case TOK_RWD_OBJECT:\
 115         case TOK_RWD_OPAQUE:\
 116         case TOK_RWD_INTEGER:\
 117         case TOK_RWD_STRING:\
 118         case TOK_RWD_REAL
 119 #define TOKEN_GROUP_TYPES_STR   "TOK_RWD_VOID, TOK_RWD_OBJECT, TOK_RWD_OPAQUE, TOK_RWD_INTEGER, TOK_RWD_STRING or TOK_RWD_REAL"
 120
 121 #define TOKEN_GET_DATATYPE(_type, _tok) do { switch(_tok) {\
 122         case TOK_RWD_VOID:  _type = SS_DATATYPE_UNDEF;  break;\
 123         case TOK_RWD_INTEGER:_type = SS_DATATYPE_INTEGER;       break;\
 124         case TOK_RWD_OPAQUE: _type = SS_DATATYPE_OPAQUE;        break;\
 125         case TOK_RWD_OBJECT: _type = SS_DATATYPE_OBJECT;        break;\
 126         case TOK_RWD_REAL:   _type = SS_DATATYPE_REAL;  break;\
 127         case TOK_RWD_STRING: _type = SS_DATATYPE_STRING;        break;\
 128         default:_type=SS_DATATYPE_UNDEF;fprintf(stderr,\
 129         "ERROR: Unexpected %s, expected "TOKEN_GROUP_TYPES_STR"\n",csaTOKEN_NAMES[Parser->Token]);\
 130         break;\
 131         } } while(0)
 132
 133 # if WANT_TOKEN_STRINGS
 134 const char * const csaTOKEN_NAMES[] = {
 135         "TOK_INVAL",
 136         "TOK_EOF",
 137
 138         "TOK_STR",
 139         "TOK_INTEGER",
 140         "TOK_REAL",
 141         "TOK_VARIABLE",
 142         "TOK_IDENT",
 143
 144         "TOK_RWD_FUNCTION",
 145         "TOK_RWD_NAMESPACE",
 146
 147         "TOK_RWD_NEW",
 148         "TOK_RWD_RETURN",
 149         "TOK_RWD_BREAK",
 150         "TOK_RWD_CONTINUE",
 151
 152         "TOK_RWD_IF",
 153         "TOK_RWD_ELSE",
 154         "TOK_RWD_DO",
 155         "TOK_RWD_WHILE",
 156         "TOK_RWD_FOR",
 157
 158         "TOK_RWD_VOID",
 159         "TOK_RWD_OBJECT",
 160         "TOK_RWD_OPAUQE",
 161         "TOK_RWD_STRING",
 162         "TOK_RWD_INTEGER",
 163         "TOK_RWD_REAL",
 164
 165         "TOK_ASSIGN",
 166         "TOK_SEMICOLON",
 167         "TOK_COMMA",
 168         "TOK_SCOPE",
 169         "TOK_ELEMENT",
 170
 171         "TOK_EQUALS",
 172         "TOK_LT",       "TOK_LTE",
 173         "TOK_GT",       "TOK_GTE",
 174
 175         "TOK_BWNOT",    "TOK_LOGICNOT",
 176         "TOK_DIV",      "TOK_MUL",
 177         "TOK_PLUS",     "TOK_MINUS",
 178         "TOK_SHL",      "TOK_SHR",
 179         "TOK_LOGICAND", "TOK_LOGICOR",  "TOK_LOGICXOR",
 180         "TOK_AND",      "TOK_OR",       "TOK_XOR",
 181
 182         "TOK_INCREMENT",        "TOK_DECREMENT",
 183         "TOK_ASSIGN_DIV",       "TOK_ASSIGN_MUL",
 184         "TOK_ASSIGN_PLUS",      "TOK_ASSIGN_MINUS",
 185         "TOK_ASSIGN_SHL",       "TOK_ASSIGN_SHR",
 186         "TOK_ASSIGN_LOGICAND",  "TOK_ASSIGN_LOGICOR",   "TOK_ASSIGN_LOGICXOR",
 187         "TOK_ASSIGN_AND",       "TOK_ASSIGN_OR",        "TOK_ASSIGN_XOR",
 188
 189         "TOK_PAREN_OPEN",       "TOK_PAREN_CLOSE",
 190         "TOK_BRACE_OPEN",       "TOK_BRACE_CLOSE",
 191         "TOK_SQUARE_OPEN",      "TOK_SQUARE_CLOSE",
 192
 193         "TOK_LAST"
 194 };
 195 # endif
 196
 197 #endif