Annotation of Gnu-Mach/ddb/db_lex.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1991,1990 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  * 
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  * 
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  * 
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  * 
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  * 
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  *     Author: David B. Golub, Carnegie Mellon University
        !            28:  *     Date:   7/90
        !            29:  */
        !            30: /*
        !            31:  * Lexical analyzer.
        !            32:  */
        !            33: 
        !            34: #define        TOK_STRING_SIZE         64 
        !            35: #define DB_LEX_LINE_SIZE       256
        !            36: 
        !            37: struct db_lex_context {
        !            38:        int  l_char;            /* peek char */
        !            39:        int  l_token;           /* peek token */
        !            40:        char *l_ptr;            /* line pointer */
        !            41:        char *l_eptr;           /* line end pointer */
        !            42: };
        !            43: 
        !            44: extern int     db_read_line(/* char *rep_str */);
        !            45: extern void    db_flush_line();
        !            46: extern int     db_read_char();
        !            47: extern void    db_unread_char(/* char c */);
        !            48: extern int     db_read_token();
        !            49: extern void    db_unread_token(/* int t */);
        !            50: extern void    db_flush_lex();
        !            51: extern void    db_switch_input(/* char *, int */);
        !            52: extern void    db_save_lex_context(/* struct db_lex_context * */);
        !            53: extern void    db_restore_lex_context(/* struct db_lex_context * */);
        !            54: extern void    db_skip_to_eol();
        !            55: 
        !            56: extern db_expr_t db_tok_number;
        !            57: extern char    db_tok_string[TOK_STRING_SIZE];
        !            58: extern db_expr_t db_radix;
        !            59: 
        !            60: #define        tEOF            (-1)
        !            61: #define        tEOL            1
        !            62: #define        tNUMBER         2
        !            63: #define        tIDENT          3
        !            64: #define        tPLUS           4
        !            65: #define        tMINUS          5
        !            66: #define        tDOT            6
        !            67: #define        tSTAR           7
        !            68: #define        tSLASH          8
        !            69: #define        tEQ             9
        !            70: #define        tLPAREN         10
        !            71: #define        tRPAREN         11
        !            72: #define        tPCT            12
        !            73: #define        tHASH           13
        !            74: #define        tCOMMA          14
        !            75: #define        tQUOTE          15
        !            76: #define        tDOLLAR         16
        !            77: #define        tEXCL           17
        !            78: #define        tSHIFT_L        18
        !            79: #define        tSHIFT_R        19
        !            80: #define        tDOTDOT         20
        !            81: #define tSEMI_COLON    21
        !            82: #define tLOG_EQ                22
        !            83: #define tLOG_NOT_EQ    23
        !            84: #define tLESS          24
        !            85: #define tLESS_EQ       25
        !            86: #define tGREATER       26
        !            87: #define tGREATER_EQ    27
        !            88: #define tBIT_AND       28
        !            89: #define tBIT_OR                29
        !            90: #define tLOG_AND       30
        !            91: #define tLOG_OR                31
        !            92: #define tSTRING                32
        !            93: #define tQUESTION      33

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