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/* ptexmac.h: common macros for pdfTeX.
Copyright 1996-2021 Han The Thanh, <thanh@pdftex.org>
This file is part of pdfTeX.
pdfTeX 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.
pdfTeX 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef PDFTEXMAC
# define PDFTEXMAC
# ifdef WIN32
/* Why relying on gmalloc() ??? */
# define gmalloc(n) xmalloc(n)
# define gfree(p) free(p)
# define inline __inline
# define srandom(n) srand(n)
# define random() rand()
# endif
/* Pascal WEB macros */
# define maxinteger 0x7FFFFFFF
# define maxdimen 0x3FFFFFFF
# define objinfo(n) objtab[n].int0
# define pdfroom(n) do { \
if ((unsigned)(n + pdfptr) > (unsigned)pdfbufsize) { \
if (pdfosmode) \
pdfosgetosbuf(n); \
else { \
if ((unsigned)(n) > (unsigned)pdfbufsize) \
pdftex_fail("PDF output buffer overflowed"); \
else \
pdfflush(); \
} \
} \
} while (0)
# define pdfout(c) do { \
pdfroom(1); \
pdfbuf[pdfptr++] = c; \
} while (0)
# define pdfoffset() (pdfgone + pdfptr)
# define MAX_CHAR_CODE 255
# define PRINTF_BUF_SIZE 1024
# define MAX_CSTRING_LEN 1024 * 1024
# define MAX_PSTRING_LEN 1024
# define SMALL_BUF_SIZE 256
# define SMALL_ARRAY_SIZE 256
# define FONTNAME_BUF_SIZE 128
/* a PDF name can be maximum 127 chars long */
# define pdftex_debug tex_printf
# define check_buf(size, buf_size) \
if ((unsigned)(size) > (unsigned)(buf_size)) \
pdftex_fail("buffer overflow at file %s, line %d", __FILE__, __LINE__ )
# define append_char_to_buf(c, p, buf, buf_size) do { \
if (c == 9) \
c = 32; \
if (c == 13 || c == EOF) \
c = 10; \
if (c != ' ' || (p > buf && p[-1] != 32)) { \
check_buf(p - buf + 1, (buf_size)); \
*p++ = c; \
} \
} while (0)
# define append_eol(p, buf, buf_size) do { \
check_buf(p - buf + 2, (buf_size)); \
if (p - buf > 1 && p[-1] != 10) \
*p++ = 10; \
if (p - buf > 2 && p[-2] == 32) { \
p[-2] = 10; \
p--; \
} \
*p = 0; \
} while (0)
# define remove_eol(p, buf) do { \
p = strend(buf) - 1; \
if (*p == 10) \
*p = 0; \
} while (0)
# define skip(p, c) if (*p == c) p++
# define alloc_array(T, n, s) do { \
if (T##_array == NULL) { \
T##_limit = (s); \
if ((unsigned)(n) > (unsigned)(T##_limit)) \
T##_limit = (n); \
T##_array = xtalloc(T##_limit, T##_entry); \
T##_ptr = T##_array; \
} \
else if ((unsigned)(T##_ptr - T##_array + (n)) > (unsigned)(T##_limit)) { \
last_ptr_index = T##_ptr - T##_array; \
T##_limit *= 2; \
if ((unsigned)(T##_ptr - T##_array + (n)) > (unsigned)(T##_limit)) \
T##_limit = T##_ptr - T##_array + (n); \
if ((unsigned)(T##_limit) > INT_MAX) \
pdftex_fail(#T "_array exceeds size limit"); \
xretalloc(T##_array, T##_limit, T##_entry); \
T##_ptr = T##_array + last_ptr_index; \
} \
} while (0)
# define is_cfg_comment(c) \
(c == 10 || c == '*' || c == '#' || c == ';' || c == '%')
# define define_array(T) \
T##_entry *T##_ptr, *T##_array = NULL; \
size_t T##_limit
# define xfree(p) do { if (p != NULL) free(p); p = NULL; } while (0)
# define strend(s) strchr(s, 0)
# define xtalloc XTALLOC
# define xretalloc XRETALLOC
# define ASCENT_CODE 0
# define CAPHEIGHT_CODE 1
# define DESCENT_CODE 2
# define ITALIC_ANGLE_CODE 3
# define STEMV_CODE 4
# define XHEIGHT_CODE 5
# define FONTBBOX1_CODE 6
# define FONTBBOX2_CODE 7
# define FONTBBOX3_CODE 8
# define FONTBBOX4_CODE 9
# define FONTNAME_CODE 10
# define GEN_KEY_NUM (XHEIGHT_CODE + 1)
# define MAX_KEY_CODE (FONTBBOX1_CODE + 1)
# define INT_KEYS_NUM (FONTBBOX4_CODE + 1)
# define FONT_KEYS_NUM (FONTNAME_CODE + 1)
# define F_INCLUDED 0x01
# define F_SUBSETTED 0x02
# define F_STDT1FONT 0x04
# define F_SUBFONT 0x08
# define F_TYPE1 0x10
# define F_TRUETYPE 0x20
# define F_OTF 0x40
# define F_PK 0x80
# define set_included(fm) ((fm)->type |= F_INCLUDED)
# define set_subsetted(fm) ((fm)->type |= F_SUBSETTED)
# define set_std_t1font(fm) ((fm)->type |= F_STDT1FONT)
# define set_subfont(fm) ((fm)->type |= F_SUBFONT)
# define set_type1(fm) ((fm)->type |= F_TYPE1)
# define set_truetype(fm) ((fm)->type |= F_TRUETYPE)
# define set_opentype(fm) ((fm)->type |= F_OTF)
# define set_pk(fm) ((fm)->type |= F_PK)
# define unset_included(fm) ((fm)->type &= ~F_INCLUDED)
# define unset_subsetted(fm) ((fm)->type &= ~F_SUBSETTED)
# define unset_std_t1font(fm)((fm)->type &= ~F_STDT1FONT)
# define unset_subfont(fm) ((fm)->type &= ~F_SUBFONT)
# define unset_type1(fm) ((fm)->type &= ~F_TYPE1)
# define unset_truetype(fm) ((fm)->type &= ~F_TRUETYPE)
# define unset_opentype(fm) ((fm)->type &= ~F_OTF)
# define unset_pk(fm) ((fm)->type &= ~F_PK)
# define is_included(fm) (((fm)->type & F_INCLUDED) != 0)
# define is_subsetted(fm) (((fm)->type & F_SUBSETTED) != 0)
# define is_std_t1font(fm) (((fm)->type & F_STDT1FONT) != 0)
# define is_subfont(fm) (((fm)->type & F_SUBFONT) != 0)
# define is_type1(fm) (((fm)->type & F_TYPE1) != 0)
# define is_truetype(fm) (((fm)->type & F_TRUETYPE) != 0)
# define is_opentype(fm) (((fm)->type & F_OTF) != 0)
# define is_pk(fm) (((fm)->type & F_PK) != 0)
# define fm_slant(fm) (fm)->slant
# define fm_extend(fm) (fm)->extend
# define fm_fontfile(fm) (fm)->ff_name
# define is_reencoded(fm) ((fm)->encname != NULL)
# define is_fontfile(fm) (fm_fontfile(fm) != NULL)
# define is_t1fontfile(fm) (is_fontfile(fm) && is_type1(fm))
# define is_builtin(fm) (!is_fontfile(fm))
# define LINK_TFM 0x01
# define LINK_PS 0x02
# define set_tfmlink(fm) ((fm)->links |= LINK_TFM)
# define set_pslink(fm) ((fm)->links |= LINK_PS)
# define unset_tfmlink(fm) ((fm)->links &= ~LINK_TFM)
# define unset_pslink(fm) ((fm)->links &= ~LINK_PS)
# define has_tfmlink(fm) ((fm)->links & LINK_TFM)
# define has_pslink(fm) ((fm)->links & LINK_PS)
# define set_cur_file_name(s) \
cur_file_name = s; \
packfilename(maketexstring(cur_file_name), getnullstr(), getnullstr())
/* This macro doesn't handle the case where a==b. It turns out that is
* convenient for the way it's used; for example, see writettf.c.
* All uses (must) follow the same pattern.
*/
# define cmp_return(a, b) \
if ((a) > (b)) \
return 1; \
if ((a) < (b)) \
return -1
# define str_prefix(s1, s2) (strncmp((s1), (s2), strlen(s2)) == 0)
/* (un)dumping a string means dumping the allocation size, followed
* by the bytes. The trailing \0 is (un)dumped as well, because that
* makes the code simpler.
*/
#define dumpcharptr(a) \
do { \
integer x; \
if (a!=NULL) { \
x = strlen(a)+1; \
generic_dump(x); dumpthings(*a, x); \
} else { \
x = 0; generic_dump(x); \
} \
} while (0)
#define undumpcharptr(s) \
do { \
integer x; \
char *a; \
generic_undump (x); \
if (x>0) { \
a = xmalloc(x); \
undumpthings(*a,x); \
s = a ; \
} else { s = NULL; } \
} while (0)
#endif /* PDFTEXMAC */
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