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/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
Copyright (C) 2002-2020 by Jin-Hwan Cho and Shunsaku Hirata,
the dvipdfmx project team.
Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
This program 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 2 of the License, or
(at your option) any later version.
This program 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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#ifndef _DPXUTIL_H_
#define _DPXUTIL_H_
#include <time.h>
#undef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#undef MAX
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#undef ABS
#define ABS(a) (((a) < 0) ? -(a) : (a))
extern double min4(double v1, double v2, double v3, double v4);
extern double max4(double v1, double v2, double v3, double v4);
extern int dpx_util_read_length (double *vp, double mag,
const char **curptr, const char *endptr);
#define INVALID_EPOCH_VALUE ((time_t)-1)
extern time_t dpx_util_get_unique_time_if_given (void);
extern int dpx_util_format_asn_date (char *date_string, int need_timezone);
#ifndef is_space
#define is_space(c) ((c) == ' ' || (c) == '\t' || (c) == '\f' || \
(c) == '\r' || (c) == '\n' || (c) == '\0')
#endif
#ifndef is_delim
#define is_delim(c) ((c) == '(' || (c) == ')' || \
(c) == '/' || \
(c) == '<' || (c) == '>' || \
(c) == '[' || (c) == ']' || \
(c) == '{' || (c) == '}' || \
(c) == '%')
#endif
extern void skip_white_spaces (unsigned char **s, unsigned char *endptr);
extern int xtoi (char c);
typedef struct stack_elem
{
void *data;
struct stack_elem *prev;
} stack_elem;
typedef struct dpx_stack
{
int size;
stack_elem *top;
stack_elem *bottom;
} dpx_stack;
extern void dpx_stack_init (dpx_stack *st);
extern void *dpx_stack_pop (dpx_stack *st);
extern void dpx_stack_push (dpx_stack *st, void *data);
extern int dpx_stack_depth (dpx_stack *st);
extern void *dpx_stack_top (dpx_stack *st);
extern void *dpx_stack_at (dpx_stack *st, int pos);
extern void dpx_stack_roll (dpx_stack *st, int n, int j);
#define HASH_TABLE_SIZE 503
struct ht_entry {
char *key;
int keylen;
void *value;
struct ht_entry *next;
};
typedef void (*hval_free_func) (void *);
struct ht_table {
int count;
hval_free_func hval_free_fn;
struct ht_entry *table[HASH_TABLE_SIZE];
};
extern void ht_init_table (struct ht_table *ht,
hval_free_func hval_free_fn);
extern void ht_clear_table (struct ht_table *ht);
extern int ht_table_size (struct ht_table *ht);
extern void *ht_lookup_table (struct ht_table *ht,
const void *key, int keylen);
extern void ht_append_table (struct ht_table *ht,
const void *key, int keylen, void *value) ;
extern int ht_remove_table (struct ht_table *ht,
const void *key, int keylen);
extern void ht_insert_table (struct ht_table *ht,
const void *key, int keylen, void *value);
struct ht_iter {
int index;
void *curr;
struct ht_table *hash;
};
extern int ht_set_iter (struct ht_table *ht, struct ht_iter *iter);
extern void ht_clear_iter (struct ht_iter *iter);
extern char *ht_iter_getkey (struct ht_iter *iter, int *keylen);
extern void *ht_iter_getval (struct ht_iter *iter);
extern int ht_iter_next (struct ht_iter *iter);
extern char *parse_float_decimal (const char **pp, const char *endptr);
extern char *parse_c_string (const char **pp, const char *endptr);
extern char *parse_c_ident (const char **pp, const char *endptr);
#endif /* _DPXUTIL_H_ */
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