1 /* $OpenBSD: fgen.h,v 1.2 2002/02/16 21:27:45 millert Exp $ */ 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(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 }; 137