1 /* Copyright (C) 2009-2020 Free Software Foundation, Inc. 2 Contributed by Janne Blomqvist 3 4 This file is part of the GNU Fortran runtime library (libgfortran). 5 6 Libgfortran is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 Libgfortran is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 Under Section 7 of GPL version 3, you are granted additional 17 permissions described in the GCC Runtime Library Exception, version 18 3.1, as published by the Free Software Foundation. 19 20 You should have received a copy of the GNU General Public License and 21 a copy of the GCC Runtime Library Exception along with this program; 22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 <http://www.gnu.org/licenses/>. */ 24 25 #ifndef GFOR_FORMAT_H 26 #define GFOR_FORMAT_H 27 28 #include "io.h" 29 30 /* Format nodes. A format string is converted into a tree of these 31 structures, which is traversed as part of a data transfer statement. */ 32 33 struct fnode 34 { 35 format_token format; 36 int repeat; 37 struct fnode *next; 38 char *source; 39 40 union 41 { 42 struct 43 { 44 int w, d, e; 45 } 46 real; 47 48 struct 49 { 50 int length; 51 char *p; 52 } 53 string; 54 55 struct 56 { 57 int w, m; 58 } 59 integer; 60 61 struct 62 { 63 char *string; 64 int string_len; 65 gfc_full_array_i4 *vlist; 66 } 67 udf; /* User Defined Format. */ 68 69 int w; 70 int k; 71 int r; 72 int n; 73 74 struct fnode *child; 75 } 76 u; 77 78 /* Members for traversing the tree during data transfer. */ 79 80 int count; 81 struct fnode *current; 82 83 }; 84 85 86 /* A storage structures for format node data. */ 87 88 #define FARRAY_SIZE 64 89 90 typedef struct fnode_array 91 { 92 struct fnode_array *next; 93 fnode array[FARRAY_SIZE]; 94 } 95 fnode_array; 96 97 98 typedef struct format_data 99 { 100 char *format_string, *string; 101 const char *error; 102 char error_element; 103 format_token saved_token; 104 int value, format_string_len, reversion_ok; 105 fnode *avail; 106 const fnode *saved_format; 107 fnode_array *last; 108 fnode_array array; 109 } 110 format_data; 111 112 extern void parse_format (st_parameter_dt *); 113 internal_proto(parse_format); 114 115 extern const fnode *next_format (st_parameter_dt *); 116 internal_proto(next_format); 117 118 extern void unget_format (st_parameter_dt *, const fnode *); 119 internal_proto(unget_format); 120 121 extern void format_error (st_parameter_dt *, const fnode *, const char *); 122 internal_proto(format_error); 123 124 extern void free_format_data (struct format_data *); 125 internal_proto(free_format_data); 126 127 extern void free_format (st_parameter_dt *); 128 internal_proto(free_format); 129 130 extern void free_format_hash_table (gfc_unit *); 131 internal_proto(free_format_hash_table); 132 133 extern void init_format_hash (st_parameter_dt *); 134 internal_proto(init_format_hash); 135 136 extern void free_format_hash (st_parameter_dt *); 137 internal_proto(free_format_hash); 138 139 #endif 140