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Annotation of src/usr.bin/fgen/fgen.h, Revision 1.1

1.1     ! jason       1: /*     $OpenBSD$       */
        !             2: /*     $NetBSD: fgen.h,v 1.4 2001/06/13 10:46:05 wiz Exp $     */
        !             3: /*
        !             4:  * fgen.h -- stuff for the fcode tokenizer.
        !             5:  *
        !             6:  * Copyright (c) 1998 Eduardo Horvath.
        !             7:  * All rights reserved.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  * 3. All advertising materials mentioning features or use of this software
        !            18:  *    must display the following acknowledgement:
        !            19:  *      This product includes software developed by Eduardo Horvath.
        !            20:  * 4. The name of the author may not be used to endorse or promote products
        !            21:  *    derived from this software without specific prior written permission
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            26:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            27:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            28:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            29:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            30:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            31:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            32:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            33:  */
        !            34:
        !            35: /* Type of a Cell */
        !            36: typedef long Cell;
        !            37:
        !            38: /* Token from the scanner. */
        !            39: struct tok {
        !            40:        int type;
        !            41:        char *text;
        !            42: };
        !            43:
        !            44: #define TOKEN struct tok
        !            45: #define YY_DECL TOKEN* yylex __P((void))
        !            46:
        !            47: #define FCODE  0xF00DBABE
        !            48: #define MACRO  0xFEEDBABE
        !            49:
        !            50: /* Defined fcode and string. */
        !            51: struct fcode {
        !            52:        char *name;
        !            53:        long num;
        !            54:        int type;
        !            55:        struct fcode *l;
        !            56:        struct fcode *r;
        !            57: };
        !            58:
        !            59: /* macro instruction as separate words */
        !            60: struct macro {
        !            61:        char *name;
        !            62:        char *equiv;
        !            63:        int type;
        !            64:        struct macro *l;
        !            65:        struct macro *r;
        !            66: };
        !            67:
        !            68: /*
        !            69:  * FCode header -- assumes big-endian machine,
        !            70:  *     otherwise the bits need twiddling.
        !            71:  */
        !            72: struct fcode_header {
        !            73:        char    header;
        !            74:        char    format;
        !            75:        short   checksum;
        !            76:        int     length;
        !            77: };
        !            78:
        !            79: /* Tokenizer tokens */
        !            80: enum toktypes {
        !            81:        TOK_OCTAL = 8,
        !            82:        TOK_DECIMAL = 10,
        !            83:        TOK_HEX = 16,
        !            84:
        !            85:        TOK_NUMBER,
        !            86:        TOK_STRING_LIT,
        !            87:        TOK_C_LIT,
        !            88:        TOK_PSTRING,
        !            89:        TOK_TOKENIZE,
        !            90:        TOK_COMMENT,
        !            91:        TOK_ENDCOMMENT,
        !            92:        TOK_COLON,
        !            93:        TOK_SEMICOLON,
        !            94:        TOK_TOSTRING,
        !            95:
        !            96:        /* These are special */
        !            97:        TOK_AGAIN,
        !            98:        TOK_ALIAS,
        !            99:        TOK_GETTOKEN,
        !           100:        TOK_ASCII,
        !           101:        TOK_BEGIN,
        !           102:        TOK_BUFFER,
        !           103:        TOK_CASE,
        !           104:        TOK_CONSTANT,
        !           105:        TOK_CONTROL,
        !           106:        TOK_CREATE,
        !           107:        TOK_DEFER,
        !           108:        TOK_DO,
        !           109:        TOK_ELSE,
        !           110:        TOK_ENDCASE,
        !           111:        TOK_ENDOF,
        !           112:        TOK_EXTERNAL,
        !           113:        TOK_FIELD,
        !           114:        TOK_HEADERLESS,
        !           115:        TOK_HEADERS,
        !           116:        TOK_IF,
        !           117:        TOK_LEAVE,
        !           118:        TOK_LOOP,
        !           119:        TOK_OF,
        !           120:        TOK_REPEAT,
        !           121:        TOK_THEN,
        !           122:        TOK_TO,
        !           123:        TOK_UNTIL,
        !           124:        TOK_VALUE,
        !           125:        TOK_VARIABLE,
        !           126:        TOK_WHILE,
        !           127:        TOK_OFFSET16,
        !           128:
        !           129:        /* Tokenizer directives */
        !           130:        TOK_BEGTOK,
        !           131:        TOK_EMIT_BYTE,
        !           132:        TOK_ENDTOK,
        !           133:        TOK_FLOAD,
        !           134:
        !           135:        TOK_OTHER
        !           136: };