ctokens.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 323 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include "weights.gh"

#define NO_PREC (-1)

#ifndef prec
  #define prec( value )
#endif

#ifndef pick
  extern  char    *Tokens[];
  #define pick(token,string,class) token
  enum TOKEN {
#endif

#define PREC_UNARY 15

// prec() applies to following token

  prec( NO_PREC )
pick( T_NULL,          "end of line",   TC_A0 ),
  prec( NO_PREC )
pick( T_EOF,           "end of file",   TC_A0 ),
  prec( 0 )
pick( T_START,          "",             TC_A3 ),
  prec( NO_PREC )
pick( T_COMMA,         ",",             TC_A2 ),
  prec( 4 )
pick( T_QUESTION,      "?",             TC_A2 ),
  prec( 3 )
pick( T_COLON,         ":",             TC_A2 ),
  prec( NO_PREC )
pick( T_SEMI_COLON,    ";",             TC_A2 ),
  prec( NO_PREC )
pick( T_COLON_COLON,   "::",            TC_A1 ),
  prec( 2 )
pick( T_LEFT_PAREN,    "(",             TC_A2 ),
  prec( 1 )
pick( T_RIGHT_PAREN,   ")",             TC_A2 ),
  prec( NO_PREC )
pick( T_LEFT_BRACKET,  "[",             TC_A2 ),
  prec( NO_PREC )
pick( T_RIGHT_BRACKET, "]",             TC_A2 ),
  prec( NO_PREC )
pick( T_LEFT_BRACE,    "{",             TC_A2 ),
  prec( NO_PREC )
pick( T_RIGHT_BRACE,   "}",             TC_A2 ),
  prec( NO_PREC )
pick( T_DOT,           ".",             TC_A2 ),
  prec( PREC_UNARY )
pick( T_TILDE,         "~",             TC_A2 ),
  prec( NO_PREC )
pick( T_EQUAL,         "=",             TC_A2 ),
  prec( 10 )
pick( T_EQ,            "==",            TC_A1 ),
  prec( PREC_UNARY )
pick( T_EXCLAMATION,   "!",             TC_A2 ),
  prec( 10 )
pick( T_NE,            "!=",            TC_A1 ),
  prec( 7 )
pick( T_OR,            "|",             TC_A2 ),
  prec( NO_PREC )
pick( T_OR_EQUAL,      "|=",            TC_A1 ),
  prec( 5 )
pick( T_OR_OR,         "||",            TC_A1 ),
  prec( 8 )
pick( T_XOR,           "^",             TC_A2 ),
  prec( NO_PREC )
pick( T_XOR_EQUAL,     "^=",            TC_A1 ),
  prec( 9 )
pick( T_AND,           "&",             TC_A2 ),
  prec( NO_PREC )
pick( T_AND_EQUAL,     "&=",            TC_A1 ),
  prec( 6 )
pick( T_AND_AND,       "&&",            TC_A1 ),
  prec( 11 )
pick( T_GT,            ">",             TC_A2 ),
  prec( 11 )
pick( T_GE,            ">=",            TC_A1 ),
  prec( 12 )
pick( T_RSHIFT,        ">>",            TC_A1 ),
  prec( NO_PREC )
pick( T_RSHIFT_EQUAL,  ">>=",           TC_A0 ),
  prec( 11 )
pick( T_LT,            "<",             TC_A2 ),
  prec( 11 )
pick( T_LE,            "<=",            TC_A1 ),
  prec( 12 )
pick( T_LSHIFT,        "<<",            TC_A1 ),
  prec( NO_PREC )
pick( T_LSHIFT_EQUAL,  "<<=",           TC_A0 ),
  prec( 13 )
pick( T_PLUS,          "+",             TC_A2 ),
  prec( NO_PREC )
pick( T_PLUS_EQUAL,    "+=",            TC_A1 ),
  prec( NO_PREC )
pick( T_PLUS_PLUS,     "++",            TC_A1 ),
  prec( 13 )
pick( T_MINUS,         "-",             TC_A2 ),
  prec( NO_PREC )
pick( T_MINUS_EQUAL,   "-=",            TC_A1 ),
  prec( NO_PREC )
pick( T_MINUS_MINUS,   "--",            TC_A1 ),
  prec( 14 )
pick( T_TIMES,         "*",             TC_A2 ),
  prec( NO_PREC )
pick( T_TIMES_EQUAL,   "*=",            TC_A1 ),
  prec( 14 )
pick( T_DIVIDE,        "/",             TC_A2 ),
  prec( NO_PREC )
pick( T_DIVIDE_EQUAL,  "/=",            TC_A1 ),
  prec( 14 )
pick( T_PERCENT,       "%",             TC_A2 ),
  prec( NO_PREC )
pick( T_PERCENT_EQUAL, "%=",            TC_A1 ),
  prec( NO_PREC )
pick( T_SHARP,         "#",             TC_A2 ),
  prec( NO_PREC )
pick( T_DOT_DOT_DOT,   "...",           TC_A0 ),
  prec( NO_PREC )
pick( T_SHARP_SHARP,   "##",            TC_A1 ),
  prec( NO_PREC )
pick( T_ARROW,         "->",            TC_A1 ),
  prec( NO_PREC )
pick( T_SEG_OP,        ":>",            TC_A1 ),
  prec( NO_PREC )
pick( T_ARROW_STAR,    "->*",           TC_A0 ),
  prec( NO_PREC )
pick( T_DOT_STAR,      ".*",            TC_A1 ),
  prec( NO_PREC )
pick( T_ID,            "identifier",    TC_A1 ),
  prec( NO_PREC )
pick( T_CONSTANT,      "constant",      TC_A3 ),
  prec( NO_PREC )
pick( T_PPNUMBER,      "pp-number",     TC_A2 ),
  prec( NO_PREC )
pick( T_STRING,        "string",        TC_A1 ),
  prec( NO_PREC )
pick( T_LSTRING,       "wide string",   TC_A0 ),
  prec( NO_PREC )
pick( T_WHITE_SPACE,   " ",             TC_A2 ),
  prec( NO_PREC )
pick( T_ATSIGN,        "@",             TC_A2 ),
  prec( NO_PREC )
pick( T_BAD_CHAR,      "bad character", TC_A2 ),
  prec( NO_PREC )
pick( T_SAVED_ID,      "identifier",    TC_A1 ),
  prec( NO_PREC )
pick( T_BAD_TOKEN,     "bad token",     TC_A2 ),
  prec( NO_PREC )
pick( T_MACRO_PARM,    "macro parm",    TC_A1 ),
  prec( NO_PREC )
pick( T_MACRO,         "macro",         TC_A2 ),
  prec( PREC_UNARY )
pick( T_UNARY_PLUS,      "+",           TC_A2 ),
  prec( PREC_UNARY )
pick( T_UNARY_MINUS,     "-",           TC_A2 ),
  prec( NO_PREC )
pick( T_MACRO_SHARP_SHARP, "##",        TC_A1 ),
  prec( NO_PREC )
pick( T_MACRO_SHARP,   "#",             TC_A2 ),
  prec( NO_PREC )
pick( T_GLOBAL_ID,"::<id>",             TC_A1 ),
  prec( NO_PREC )
pick( T_GLOBAL_TYPE_NAME,"::<type-name>",TC_A2 ),
  prec( NO_PREC )
pick( T_GLOBAL_TEMPLATE_NAME,"::<template-name>",           TC_A2 ),
  prec( NO_PREC )
pick( T_GLOBAL_NAMESPACE_NAME,"::<namespace-name>",         TC_A1 ),
  prec( NO_PREC )
pick( T_GLOBAL_OPERATOR,"::operator",   TC_A1 ),
  prec( NO_PREC )
pick( T_GLOBAL_TILDE,"::~",             TC_A0 ),
  prec( NO_PREC )
pick( T_GLOBAL_NEW,"::new",             TC_A2 ),
  prec( NO_PREC )
pick( T_GLOBAL_DELETE,"::delete",       TC_A3 ),
  prec( NO_PREC )
pick( T_SCOPED_ID,"C::<id>",            TC_A0 ),
  prec( NO_PREC )
pick( T_SCOPED_TYPE_NAME,"C::<type-name>",TC_A1 ),
  prec( NO_PREC )
pick( T_SCOPED_TEMPLATE_NAME,"C::<template-name>",TC_A1 ),
  prec( NO_PREC )
pick( T_SCOPED_NAMESPACE_NAME,"C::<namespace-name>",TC_A0 ),
  prec( NO_PREC )
pick( T_SCOPED_OPERATOR,"C::operator",  TC_A0 ),
  prec( NO_PREC )
pick( T_SCOPED_TILDE,"C::~",            TC_A3 ),
  prec( NO_PREC )
pick( T_SCOPED_TIMES,"C::*",            TC_A3 ),
  prec( NO_PREC )
pick( T_TEMPLATE_SCOPED_ID,      "T<>::<id>",           TC_A2 ),
  prec( NO_PREC )
pick( T_TEMPLATE_SCOPED_TYPE_NAME,"T<>::<type-name>",   TC_A3 ),
  prec( NO_PREC )
pick( T_TEMPLATE_SCOPED_TEMPLATE_NAME,"T<>::<template-name>",   TC_A3 ),
  prec( NO_PREC )
pick( T_TEMPLATE_SCOPED_NAMESPACE_NAME,"T<>::<namespace-name>", TC_A2 ),
  prec( NO_PREC )
pick( T_TEMPLATE_SCOPED_OPERATOR,"T<>::operator",       TC_A2 ),
  prec( NO_PREC )
pick( T_TEMPLATE_SCOPED_TILDE,   "T<>::~",              TC_A1 ),
  prec( NO_PREC )
pick( T_TEMPLATE_SCOPED_TIMES,   "T<>::*",              TC_A1 ),
  prec( NO_PREC )
pick( T_IMPOSSIBLE,      "???",         TC_A0 ),
  prec( NO_PREC )
pick( T_DEFARG_END,      "<end-defarg>",TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER0,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER1,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER2,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER3,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER4,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER5,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER6,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER7,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER8,         "",            TC_A3 ),
  prec( NO_PREC )
pick( T_FILLER9,         "",            TC_A3 ),

/* digraphs */
  prec( NO_PREC )
pick( T_ALT_LEFT_BRACKET, "<:",         TC_A1 ),
  prec( NO_PREC )
pick( T_ALT_RIGHT_BRACKET, ":>",        TC_A1 ),
  prec( NO_PREC )
pick( T_ALT_LEFT_BRACE,  "<%",          TC_A1 ),
  prec( NO_PREC )
pick( T_ALT_RIGHT_BRACE, "%>",          TC_A1 ),
  prec( NO_PREC )
pick( T_ALT_SHARP,       "%:",          TC_A1 ),
  prec( NO_PREC )
pick( T_ALT_SHARP_SHARP, "%:%:",        TC_A3 ),

/* alternative tokens */
  prec( 9 )
pick( T_ALT_AND,         "bitand",      TC_A1 ),
  prec( NO_PREC )
pick( T_ALT_AND_EQUAL,   "andeq",       TC_A2 ),
  prec( 6 )
pick( T_ALT_AND_AND,     "and",         TC_A0 ),
  prec( 7 )
pick( T_ALT_OR,          "bitor",       TC_A2 ),
  prec( NO_PREC )
pick( T_ALT_OR_EQUAL,    "or_eq",       TC_A2 ),
  prec( 5 )
pick( T_ALT_OR_OR,       "or",          TC_A1 ),
  prec( 8 )
pick( T_ALT_XOR,         "xor",         TC_A0 ),
  prec( NO_PREC )
pick( T_ALT_XOR_EQUAL,   "xor_eq",      TC_A1 ),
  prec( PREC_UNARY )
pick( T_ALT_EXCLAMATION, "not",         TC_A0 ),
  prec( 10 )
pick( T_ALT_NE,          "not_eq",      TC_A1 ),
  prec( PREC_UNARY )
pick( T_ALT_TILDE,       "compl",       TC_A2 ),

  prec( NO_PREC )
pick( T_BEFORE_KEYWORDS, "",            TC_A3 ),

#define FIRST_KEYWORD   (T_BEFORE_KEYWORDS+1)

#ifndef no_keywords

/* start of keywords */
#include "keywords.gh"

#define LAST_KEYWORD    (T_AFTER_KEYWORDS-1)
pick( T_AFTER_KEYWORDS, "",             TC_A3 ),
  prec( NO_PREC )
pick( T_MACRO_VAR_PARM, "macro var parm", TC_A1 ),
  prec( NO_PREC )
pick( T_MACRO_EMPTY_VAR_PARM, "macro var empty parm", TC_A1 ),
pick( T_LAST_TOKEN,    "LAST",          TC_A3 )

#endif

};
#undef pick
#undef prec