1 /* Main include file for TeX in C. Originally by Tim Morgan,
2 December 23, 1987. These routines are also used by Metafont (with
5 Copyright 1992 Karl Berry
6 Copyright 2007 TeX Users Group
7 Copyright 2014 Clerk Ma
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
27 #define INLINE __inline
32 #define dump_file fmt_file
33 #define out_file dvi_file
36 typedef FILE * byte_file;
37 typedef FILE * word_file;
39 /* Read a line of input as quickly as possible. */
40 extern boolean input_line (FILE *);
41 #define input_ln(stream, flag) input_line(stream)
43 /* `b_open_in' (and out) is used only for reading (and writing) .tfm
44 files; `w_open_in' (and out) only for dump files. The filenames are
45 passed in as a global variable, `name_of_file'. */
47 #define b_open_in(f) open_input (&(f), TFMFILEPATH, FOPEN_RBIN_MODE)
48 #define w_open_in(f) open_input (&(f), TEXFORMATPATH, FOPEN_RBIN_MODE)
49 #define b_open_out(f) open_output (&(f), FOPEN_WBIN_MODE)
50 #define w_open_out b_open_out
51 #define b_close a_close
52 #define w_close a_close
53 #define gz_w_close gzclose
56 #define fix_date_and_time() get_date_and_time (&(tex_time), &(day), &(month), &(year))
58 /* If we're running under Unix, use system calls instead of standard I/O
59 to read and write the output files; also, be able to make a core dump. */
61 #define dumpcore() exit(1)
63 #define dumpcore abort
66 #define write_dvi(a, b) \
67 if ((size_t) fwrite ((char *) &dvi_buf[a], sizeof (dvi_buf[a]), \
68 (size_t) ((size_t)(b) - (size_t)(a) + 1), dvi_file) \
69 != (size_t) ((size_t)(b) - (size_t)(a) + 1)) \
70 FATAL_PERROR ("\n! dvi file")
72 extern int do_dump (char *, int, int, FILE *);
73 extern int do_undump (char *, int, int, FILE *);
75 /* Reading and writing the dump files. `(un)dumpthings' is called from
77 #define dumpthings(base, len) \
78 do_dump ((char *) &(base), sizeof (base), (int) (len), dump_file)
80 #define undumpthings(base, len) \
81 do_undump ((char *) &(base), sizeof (base), (int) (len), dump_file)
83 /* Use the above for all the other dumping and undumping. */
84 #define generic_dump(x) dumpthings (x, 1)
85 #define generic_undump(x) undumpthings (x, 1)
87 #define dump_wd generic_dump
88 #define undump_wd generic_undump
89 #define dump_hh generic_dump
90 #define undump_hh generic_undump
91 #define dump_qqqq generic_dump
92 #define undump_qqqq generic_undump
94 /* `dump_int' is called with constant integers, so we put them into a
99 integer x_val = (x); \
100 generic_dump (x_val); \
104 /* web2c/regfix puts variables in the format file loading into
105 registers. Some compilers aren't willing to take addresses of such
106 variables. So we must kludge. */
108 #define undump_int(x) \
112 generic_undump (x_val); \
117 #define undump_int generic_undump
121 /* If we're running on an ASCII system, there is no need to use the
122 `xchr' array to convert characters to the external encoding. */
124 #define Xchr(x) xchr[x]
126 /* following added from new texmf.c file 1996/Jan/12 */
127 /* these, of course are useless definitions since parameters not given */
129 /* Declare routines in texmf.c. */
130 extern void get_date_and_time();
131 extern void t_open_in();
132 extern boolean input_line();