| 1 | #ifdef FLEX_SCANNER
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| 2 | /*
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| 3 | dnl tables_shared.h - tables serialization header
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| 4 | dnl
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| 5 | dnl Copyright (c) 1990 The Regents of the University of California.
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| 6 | dnl All rights reserved.
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| 7 | dnl
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| 8 | dnl This code is derived from software contributed to Berkeley by
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| 9 | dnl Vern Paxson.
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| 10 | dnl
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| 11 | dnl The United States Government has rights in this work pursuant
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| 12 | dnl to contract no. DE-AC03-76SF00098 between the United States
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| 13 | dnl Department of Energy and the University of California.
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| 14 | dnl
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| 15 | dnl This file is part of flex.
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| 16 | dnl
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| 17 | dnl Redistribution and use in source and binary forms, with or without
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| 18 | dnl modification, are permitted provided that the following conditions
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| 19 | dnl are met:
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| 20 | dnl
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| 21 | dnl 1. Redistributions of source code must retain the above copyright
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| 22 | dnl notice, this list of conditions and the following disclaimer.
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| 23 | dnl 2. Redistributions in binary form must reproduce the above copyright
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| 24 | dnl notice, this list of conditions and the following disclaimer in the
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| 25 | dnl documentation and/or other materials provided with the distribution.
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| 26 | dnl
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| 27 | dnl Neither the name of the University nor the names of its contributors
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| 28 | dnl may be used to endorse or promote products derived from this software
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| 29 | dnl without specific prior written permission.
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| 30 | dnl
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| 31 | dnl THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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| 32 | dnl IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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| 33 | dnl WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 34 | dnl PURPOSE.
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| 35 | |
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| 36 |
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| 37 | dnl
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| 38 | dnl This file is meant to be included in both the skeleton and the actual
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| 39 | dnl flex code (hence the name "_shared").
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| 40 | */
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| 41 | #ifndef yyskel_static
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| 42 | #define yyskel_static static
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| 43 | #endif
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| 44 | #else
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| 45 | #ifndef yyskel_static
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| 46 | #define yyskel_static
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| 47 | #endif
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| 48 | #endif
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| 49 |
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| 50 | /* Structures and prototypes for serializing flex tables. The
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| 51 | * binary format is documented in the manual.
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| 52 | *
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| 53 | * Design considerations:
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| 54 | *
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| 55 | * - The format allows many tables per file.
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| 56 | * - The tables can be streamed.
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| 57 | * - All data is stored in network byte order.
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| 58 | * - We do not hinder future unicode support.
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| 59 | * - We can lookup tables by name.
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| 60 | */
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| 61 |
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| 62 | /** Magic number for serialized format. */
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| 63 | #ifndef YYTBL_MAGIC
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| 64 | #define YYTBL_MAGIC 0xF13C57B1
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| 65 | #endif
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| 66 |
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| 67 | /** Calculate (0-7) = number bytes needed to pad n to next 64-bit boundary. */
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| 68 | #ifndef yypad64
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| 69 | #define yypad64(n) ((8-((n)%8))%8)
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| 70 | #endif
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| 71 |
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| 72 |
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| 73 | #ifndef YYTABLES_TYPES
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| 74 | #define YYTABLES_TYPES
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| 75 | /** Possible values for td_id field. Each one corresponds to a
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| 76 | * scanner table of the same name.
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| 77 | */
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| 78 | enum yytbl_id {
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| 79 | YYTD_ID_ACCEPT = 0x01, /**< 1-dim ints */
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| 80 | YYTD_ID_BASE = 0x02, /**< 1-dim ints */
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| 81 | YYTD_ID_CHK = 0x03, /**< 1-dim ints */
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| 82 | YYTD_ID_DEF = 0x04, /**< 1-dim ints */
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| 83 | YYTD_ID_EC = 0x05, /**< 1-dim ints */
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| 84 | YYTD_ID_META = 0x06, /**< 1-dim ints */
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| 85 | YYTD_ID_NUL_TRANS = 0x07, /**< 1-dim ints, maybe indices */
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| 86 | YYTD_ID_NXT = 0x08, /**< may be 2 dimensional ints */
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| 87 | YYTD_ID_RULE_CAN_MATCH_EOL = 0x09, /**< 1-dim ints */
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| 88 | YYTD_ID_START_STATE_LIST = 0x0A, /**< 1-dim indices into trans tbl */
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| 89 | YYTD_ID_TRANSITION = 0x0B, /**< structs */
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| 90 | YYTD_ID_ACCLIST = 0x0C /**< 1-dim ints */
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| 91 | };
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| 92 |
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| 93 | /** bit flags for t_flags field of struct yytbl_data */
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| 94 | enum yytbl_flags {
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| 95 | /* These first three are mutually exclusive */
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| 96 | YYTD_DATA8 = 0x01, /**< data is an array of type flex_int8_t */
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| 97 | YYTD_DATA16 = 0x02, /**< data is an array of type flex_int16_t */
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| 98 | YYTD_DATA32 = 0x04, /**< data is an array of type flex_int32_t */
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| 99 |
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| 100 | /* These two are mutually exclusive. */
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| 101 | YYTD_PTRANS = 0x08, /**< data is a list of indexes of entries
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| 102 | into the expanded `yy_transition'
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| 103 | array. See notes in manual. */
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| 104 | YYTD_STRUCT = 0x10 /**< data consists of yy_trans_info structs */
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| 105 | };
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| 106 |
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| 107 | /* The serialized tables header. */
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| 108 | struct yytbl_hdr {
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| 109 | flex_uint32_t th_magic; /**< Must be 0xF13C57B1 (comes from "Flex Table") */
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| 110 | flex_uint32_t th_hsize; /**< Size of this header in bytes. */
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| 111 | flex_uint32_t th_ssize; /**< Size of this dataset, in bytes, including header. */
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| 112 | flex_uint16_t th_flags; /**< Currently unused, must be 0 */
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| 113 | char *th_version; /**< Flex version string. NUL terminated. */
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| 114 | char *th_name; /**< The name of this table set. NUL terminated. */
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| 115 | };
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| 116 |
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| 117 | /** A single serialized table */
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| 118 | struct yytbl_data {
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| 119 | flex_uint16_t td_id; /**< enum yytbl_id table identifier */
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| 120 | flex_uint16_t td_flags; /**< how to interpret this data */
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| 121 | flex_uint32_t td_hilen; /**< num elements in highest dimension array */
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| 122 | flex_uint32_t td_lolen; /**< num elements in lowest dimension array */
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| 123 | void *td_data; /**< table data */
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| 124 | };
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| 125 | #endif
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| 126 |
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| 127 | /** Extract corresponding data size_t from td_flags */
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| 128 | #ifndef YYTDFLAGS2BYTES
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| 129 | #define YYTDFLAGS2BYTES(td_flags)\
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| 130 | (((td_flags) & YYTD_DATA8)\
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| 131 | ? sizeof(flex_int8_t)\
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| 132 | :(((td_flags) & YYTD_DATA16)\
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| 133 | ? sizeof(flex_int16_t)\
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| 134 | :sizeof(flex_int32_t)))
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| 135 | #endif
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| 136 |
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| 137 | #ifdef FLEX_SCANNER
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| 138 | %not-for-header
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| 139 | #endif
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| 140 | yyskel_static flex_int32_t yytbl_calc_total_len (const struct yytbl_data *tbl);
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| 141 | #ifdef FLEX_SCANNER
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| 142 | %ok-for-header
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| 143 | #endif
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| 144 |
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| 145 | /* vim:set noexpandtab cindent tabstop=8 softtabstop=0 shiftwidth=8 textwidth=0: */
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