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/* Copyright (C) 2009-2015 Free Software Foundation, Inc.
Contributed by Janne Blomqvist
This file is part of the GNU Fortran runtime library (libgfortran).
Libgfortran is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
Libgfortran is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef GFOR_FORMAT_H
#define GFOR_FORMAT_H
#include "io.h"
/* Format tokens. Only about half of these can be stored in the
format nodes. */
typedef enum
{
FMT_NONE = 0, FMT_UNKNOWN, FMT_SIGNED_INT, FMT_ZERO, FMT_POSINT, FMT_PERIOD,
FMT_COMMA, FMT_COLON, FMT_SLASH, FMT_DOLLAR, FMT_T, FMT_TR, FMT_TL,
FMT_LPAREN, FMT_RPAREN, FMT_X, FMT_S, FMT_SS, FMT_SP, FMT_STRING,
FMT_BADSTRING, FMT_P, FMT_I, FMT_B, FMT_BN, FMT_BZ, FMT_O, FMT_Z, FMT_F,
FMT_E, FMT_EN, FMT_ES, FMT_G, FMT_L, FMT_A, FMT_D, FMT_H, FMT_END, FMT_DC,
FMT_DP, FMT_STAR, FMT_RC, FMT_RD, FMT_RN, FMT_RP, FMT_RU, FMT_RZ
}
format_token;
/* Format nodes. A format string is converted into a tree of these
structures, which is traversed as part of a data transfer statement. */
struct fnode
{
format_token format;
int repeat;
struct fnode *next;
char *source;
union
{
struct
{
int w, d, e;
}
real;
struct
{
int length;
char *p;
}
string;
struct
{
int w, m;
}
integer;
int w;
int k;
int r;
int n;
struct fnode *child;
}
u;
/* Members for traversing the tree during data transfer. */
int count;
struct fnode *current;
};
/* A storage structures for format node data. */
#define FARRAY_SIZE 64
typedef struct fnode_array
{
struct fnode_array *next;
fnode array[FARRAY_SIZE];
}
fnode_array;
typedef struct format_data
{
char *format_string, *string;
const char *error;
char error_element;
format_token saved_token;
int value, format_string_len, reversion_ok;
fnode *avail;
const fnode *saved_format;
fnode_array *last;
fnode_array array;
}
format_data;
extern void parse_format (st_parameter_dt *);
internal_proto(parse_format);
extern const fnode *next_format (st_parameter_dt *);
internal_proto(next_format);
extern void unget_format (st_parameter_dt *, const fnode *);
internal_proto(unget_format);
extern void format_error (st_parameter_dt *, const fnode *, const char *);
internal_proto(format_error);
extern void free_format_data (struct format_data *);
internal_proto(free_format_data);
extern void free_format (st_parameter_dt *);
internal_proto(free_format);
extern void free_format_hash_table (gfc_unit *);
internal_proto(free_format_hash_table);
extern void init_format_hash (st_parameter_dt *);
internal_proto(init_format_hash);
extern void free_format_hash (st_parameter_dt *);
internal_proto(free_format_hash);
#endif
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