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path: root/Build/source/texk/dvipsk/writet1.c
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Diffstat (limited to 'Build/source/texk/dvipsk/writet1.c')
-rw-r--r--Build/source/texk/dvipsk/writet1.c1574
1 files changed, 1574 insertions, 0 deletions
diff --git a/Build/source/texk/dvipsk/writet1.c b/Build/source/texk/dvipsk/writet1.c
new file mode 100644
index 00000000000..0a95247196f
--- /dev/null
+++ b/Build/source/texk/dvipsk/writet1.c
@@ -0,0 +1,1574 @@
+/*
+Copyright 1996-2018 Han The Thanh <thanh@pdftex.org>
+
+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, see <http://www.gnu.org/licenses/>. */
+
+#include "dvips.h"
+/*
+ * The external declarations:
+ */
+#include "protos.h"
+#include "ptexmac.h"
+#undef fm_extend
+#define fm_extend(f) 0
+#undef fm_slant
+#define fm_slant(f) 0
+#undef is_reencoded
+#define is_reencoded(f) (cur_enc_name != NULL)
+#undef is_subsetted
+#define is_subsetted(f) true
+#undef is_included
+#define is_included(f) true
+#undef set_cur_file_name
+#define set_cur_file_name(s) cur_file_name = s
+#define external_enc() ext_glyph_names
+#define full_file_name() cur_file_name
+#define is_used_char(c) (grid[c] == 1)
+#define end_last_eexec_line() \
+ hexline_length = HEXLINE_WIDTH; \
+ end_hexline(); \
+ t1_eexec_encrypt = false
+#define t1_scan_only()
+#define t1_scan_keys()
+#define embed_all_glyphs(tex_font) false
+#undef pdfmovechars
+#ifdef SHIFTLOWCHARS
+#define pdfmovechars shiftlowchars
+#define t1_char(c) T1Char(c)
+#else /* SHIFTLOWCHARS */
+#define t1_char(c) c
+#define pdfmovechars 0
+#endif /* SHIFTLOWCHARS */
+#define extra_charset() dvips_extra_charset
+#define make_subset_tag(a, b)
+#define update_subset_tag()
+
+static char *dvips_extra_charset;
+static char *cur_file_name;
+static char *cur_enc_name;
+static unsigned char *grid;
+static char *ext_glyph_names[256];
+static char print_buf[PRINTF_BUF_SIZE];
+static int hexline_length;
+static char notdef[] = ".notdef";
+static size_t last_ptr_index;
+
+#include <stdarg.h>
+
+#define t1_log(str)
+#define get_length1()
+#define get_length2()
+#define get_length3()
+#define save_offset()
+
+#define t1_open() \
+ ((t1_file = search(type1path, cur_file_name, FOPEN_RBIN_MODE)) != NULL)
+#define t1_close() xfclose(t1_file, cur_file_name)
+#define t1_getchar() getc(t1_file)
+#define t1_putchar(c) fputc(c, bitfile)
+#define t1_ungetchar(c) ungetc(c, t1_file)
+#define t1_eof() feof(t1_file)
+
+#define str_prefix(s1, s2) (strncmp(s1, s2, strlen(s2)) == 0)
+#define t1_prefix(s) str_prefix(t1_line_array, s)
+#define t1_buf_prefix(s) str_prefix(t1_buf_array, s)
+#define t1_suffix(s) str_suffix(t1_line_array, t1_line_ptr, s)
+#define t1_buf_suffix(s) str_suffix(t1_buf_array, t1_buf_ptr, s)
+#define t1_charstrings() strstr(t1_line_array, charstringname)
+#define t1_subrs() t1_prefix("/Subrs")
+#define t1_end_eexec() t1_suffix("mark currentfile closefile")
+#define t1_cleartomark() t1_prefix("cleartomark")
+
+#define enc_open() \
+ ((enc_file = search(encpath, cur_file_name, FOPEN_RBIN_MODE)) != NULL)
+#define enc_close() xfclose(enc_file, cur_file_name)
+#define enc_getchar() getc(enc_file)
+#define enc_eof() feof(enc_file)
+
+#define valid_code(c) (c >= 0 && c < 256)
+#define fixedcontent true /* false for pdfTeX, true for dvips */
+
+static const char *standard_glyph_names[256] = {
+ /* 0x00 */
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ /* 0x10 */
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ /* 0x20 */
+ "space", "exclam", "quotedbl", "numbersign", "dollar", "percent",
+ "ampersand", "quoteright", "parenleft", "parenright", "asterisk",
+ "plus", "comma", "hyphen", "period", "slash",
+ /* 0x30 */
+ "zero", "one", "two", "three", "four", "five", "six", "seven", "eight",
+ "nine", "colon", "semicolon", "less", "equal", "greater", "question",
+ /* 0x40 */
+ "at", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N",
+ "O",
+ /* 0x50 */
+ "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "bracketleft",
+ "backslash", "bracketright", "asciicircum", "underscore",
+ /* 0x60 */
+ "quoteleft", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l",
+ "m", "n", "o",
+ /* 0x70 */
+ "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "braceleft", "bar",
+ "braceright", "asciitilde", notdef,
+ /* 0x80 */
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ /* 0x90 */
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ /* 0xa0 */
+ notdef, "exclamdown", "cent", "sterling", "fraction", "yen", "florin",
+ "section", "currency", "quotesingle", "quotedblleft", "guillemotleft",
+ "guilsinglleft", "guilsinglright", "fi", "fl",
+ /* 0xb0 */
+ notdef, "endash", "dagger", "daggerdbl", "periodcentered", notdef,
+ "paragraph", "bullet", "quotesinglbase", "quotedblbase",
+ "quotedblright", "guillemotright", "ellipsis", "perthousand", notdef,
+ "questiondown",
+ /* 0xc0 */
+ notdef, "grave", "acute", "circumflex", "tilde", "macron", "breve",
+ "dotaccent", "dieresis", notdef,
+ "ring", "cedilla", notdef, "hungarumlaut", "ogonek", "caron",
+ /* 0xd0 */
+ "emdash", notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ notdef, notdef, notdef, notdef, notdef, notdef, notdef,
+ /* 0xe0 */
+ notdef, "AE", notdef, "ordfeminine", notdef, notdef, notdef, notdef,
+ "Lslash", "Oslash", "OE", "ordmasculine", notdef, notdef, notdef,
+ notdef,
+ /* 0xf0 */
+ notdef, "ae", notdef, notdef, notdef, "dotlessi", notdef, notdef, "lslash",
+ "oslash", "oe", "germandbls", notdef, notdef, notdef, notdef
+};
+
+char **t1_glyph_names;
+char *t1_builtin_glyph_names[256];
+static boolean read_encoding_only;
+
+static char charstringname[] = "/CharStrings";
+
+enum { ENC_STANDARD, ENC_BUILTIN } t1_encoding;
+
+#define T1_BUF_SIZE 0x10
+#define ENC_BUF_SIZE 0x1000
+
+#define CS_HSTEM 1
+#define CS_VSTEM 3
+#define CS_VMOVETO 4
+#define CS_RLINETO 5
+#define CS_HLINETO 6
+#define CS_VLINETO 7
+#define CS_RRCURVETO 8
+#define CS_CLOSEPATH 9
+#define CS_CALLSUBR 10
+#define CS_RETURN 11
+#define CS_ESCAPE 12
+#define CS_HSBW 13
+#define CS_ENDCHAR 14
+#define CS_RMOVETO 21
+#define CS_HMOVETO 22
+#define CS_VHCURVETO 30
+#define CS_HVCURVETO 31
+#define CS_1BYTE_MAX (CS_HVCURVETO + 1)
+
+#define CS_DOTSECTION CS_1BYTE_MAX + 0
+#define CS_VSTEM3 CS_1BYTE_MAX + 1
+#define CS_HSTEM3 CS_1BYTE_MAX + 2
+#define CS_SEAC CS_1BYTE_MAX + 6
+#define CS_SBW CS_1BYTE_MAX + 7
+#define CS_DIV CS_1BYTE_MAX + 12
+#define CS_CALLOTHERSUBR CS_1BYTE_MAX + 16
+#define CS_POP CS_1BYTE_MAX + 17
+#define CS_SETCURRENTPOINT CS_1BYTE_MAX + 33
+#define CS_2BYTE_MAX (CS_SETCURRENTPOINT + 1)
+#define CS_MAX CS_2BYTE_MAX
+
+typedef unsigned char byte;
+
+typedef struct {
+ byte nargs; /* number of arguments */
+ boolean bottom; /* take arguments from bottom of stack? */
+ boolean clear; /* clear stack? */
+ boolean valid;
+} cc_entry; /* CharString Command */
+
+typedef struct {
+ char *name; /* glyph name (or notdef for Subrs entry) */
+ byte *data;
+ unsigned short len; /* length of the whole string */
+ unsigned short cslen; /* length of the encoded part of the string */
+ boolean used;
+ boolean valid;
+} cs_entry;
+
+static unsigned short t1_dr, t1_er;
+static const unsigned short t1_c1 = 52845, t1_c2 = 22719;
+static unsigned short t1_cslen;
+static short t1_lenIV;
+static char enc_line[ENC_BUF_SIZE];
+
+/* define t1_line_ptr, t1_line_array & t1_line_limit */
+typedef char t1_line_entry;
+define_array(t1_line);
+
+/* define t1_buf_ptr, t1_buf_array & t1_buf_limit */
+typedef char t1_buf_entry;
+define_array(t1_buf);
+
+static int cs_start;
+
+static cs_entry *cs_tab, *cs_ptr, *cs_notdef;
+static char *cs_dict_start, *cs_dict_end;
+static int cs_count, cs_size, cs_size_pos;
+
+static cs_entry *subr_tab;
+static char *subr_array_start, *subr_array_end;
+static int subr_max, subr_size, subr_size_pos;
+
+/* This list contains the begin/end tokens commonly used in the */
+/* /Subrs array of a Type 1 font. */
+
+static const char *cs_token_pairs_list[][2] = {
+ {" RD", "NP"},
+ {" -|", "|"},
+ {" RD", "noaccess put"},
+ {" -|", "noaccess put"},
+ {NULL, NULL}
+};
+static const char **cs_token_pair;
+
+static boolean t1_pfa, t1_cs, t1_scan, t1_eexec_encrypt, t1_synthetic;
+static int t1_in_eexec; /* 0 before eexec-encrypted, 1 during, 2 after */
+static long t1_block_length;
+static int last_hexbyte;
+static FILE *t1_file;
+static FILE *enc_file;
+
+static void pdftex_fail(const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ fputs("\nError: module writet1", stderr);
+ if (cur_file_name)
+ fprintf_str(stderr, " (file %s)", cur_file_name);
+ fputs(": ", stderr);
+ vsprintf(print_buf, fmt, args);
+ fputs_str(print_buf, stderr);
+ fputs("\n ==> Fatal error occurred, the output PS file is not finished!\n", stderr);
+ va_end(args);
+ exit(-1);
+}
+
+static void pdftex_warn(const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ fputs("\nWarning: module writet1 of dvips", stderr);
+ if (cur_file_name)
+ fprintf_str(stderr, " (file %s)", cur_file_name);
+ fputs(": ", stderr);
+ vsprintf(print_buf, fmt, args);
+ fputs_str(print_buf, stderr);
+ fputs("\n", stderr);
+ va_end(args);
+}
+
+#define HEXLINE_WIDTH 64
+
+static void end_hexline(void)
+{
+ if (hexline_length == HEXLINE_WIDTH) {
+ fputs("\n", bitfile);
+ hexline_length = 0;
+ }
+}
+
+static void t1_outhex(byte b)
+{
+ static const char *hexdigits = "0123456789ABCDEF";
+ t1_putchar(hexdigits[b/16]);
+ t1_putchar(hexdigits[b%16]);
+ hexline_length += 2;
+ end_hexline();
+}
+
+
+static void enc_getline(void)
+{
+ char *p;
+ int c;
+ restart:
+ if (enc_eof())
+ pdftex_fail("unexpected end of file");
+ p = enc_line;
+ do {
+ c = enc_getchar();
+ append_char_to_buf(c, p, enc_line, ENC_BUF_SIZE);
+ } while (c != 10);
+ append_eol(p, enc_line, ENC_BUF_SIZE);
+ if (p - enc_line < 2 || *enc_line == '%')
+ goto restart;
+}
+
+/* read encoding from .enc file, return glyph_names array, or pdffail() */
+
+char **load_enc_file(char *enc_name)
+{
+ char buf[ENC_BUF_SIZE], *p, *r;
+ int i, names_count;
+ char **glyph_names;
+ set_cur_file_name(enc_name);
+ glyph_names = (char **) mymalloc(256 * sizeof(char *));
+ for (i = 0; i < 256; i++)
+ glyph_names[i] = notdef;
+ if (!enc_open()) {
+ pdftex_warn("cannot open encoding file for reading");
+ cur_file_name = NULL;
+ return glyph_names;
+ }
+ t1_log("{");
+ t1_log(cur_file_name = full_file_name());
+ enc_getline();
+ if (*enc_line != '/' || (r = strchr(enc_line, '[')) == NULL) {
+ remove_eol(r, enc_line);
+ pdftex_fail
+ ("invalid encoding vector (a name or `[' missing): `%s'", enc_line);
+ }
+ names_count = 0;
+ r++; /* skip '[' */
+ skip(r, ' ');
+ for (;;) {
+ while (*r == '/') {
+ for (p = buf, r++;
+ *r != ' ' && *r != 10 && *r != ']' && *r != '/'; *p++ = *r++);
+ *p = 0;
+ skip(r, ' ');
+ if (names_count > 255)
+ pdftex_fail("encoding vector contains more than 256 names");
+ if (strcmp(buf, notdef) != 0)
+ glyph_names[names_count] = xstrdup(buf);
+ names_count++;
+ }
+ if (*r != 10 && *r != '%') {
+ if (str_prefix(r, "] def"))
+ goto done;
+ else {
+ remove_eol(r, enc_line);
+ pdftex_fail
+ ("invalid encoding vector: a name or `] def' expected: `%s'", enc_line);
+ }
+ }
+ enc_getline();
+ r = enc_line;
+ }
+ done:
+ enc_close();
+ t1_log("}");
+ cur_file_name = NULL;
+ return glyph_names;
+}
+
+static void t1_check_pfa(void)
+{
+ const int c = t1_getchar();
+ t1_pfa = (c != 128) ? true : false;
+ t1_ungetchar(c);
+}
+
+static int t1_getbyte(void)
+{
+ int c = t1_getchar();
+ if (t1_pfa)
+ return c;
+ if (t1_block_length == 0) {
+ if (c != 128)
+ pdftex_fail("invalid marker");
+ c = t1_getchar();
+ if (c == 3) {
+ while (!t1_eof())
+ t1_getchar();
+ return EOF;
+ }
+ t1_block_length = t1_getchar() & 0xff;
+ t1_block_length |= (t1_getchar() & 0xff) << 8;
+ t1_block_length |= (t1_getchar() & 0xff) << 16;
+ t1_block_length |= (t1_getchar() & 0xff) << 24;
+ c = t1_getchar();
+ }
+ t1_block_length--;
+ return c;
+}
+
+static int hexval(int c)
+{
+ if (c >= 'A' && c <= 'F')
+ return c - 'A' + 10;
+ else if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ else if (c >= '0' && c <= '9')
+ return c - '0';
+ else
+ return -1;
+}
+
+static byte edecrypt(byte cipher)
+{
+ byte plain;
+ if (t1_pfa) {
+ while (cipher == 10 || cipher == 13)
+ cipher = t1_getbyte();
+ last_hexbyte = cipher = (hexval(cipher) << 4) + hexval(t1_getbyte());
+ }
+ plain = (cipher ^ (t1_dr >> 8));
+ t1_dr = (cipher + t1_dr) * t1_c1 + t1_c2;
+ return plain;
+}
+
+static byte cdecrypt(byte cipher, unsigned short *cr)
+{
+ const byte plain = (cipher ^ (*cr >> 8));
+ *cr = (cipher + *cr) * t1_c1 + t1_c2;
+ return plain;
+}
+
+static byte eencrypt(byte plain)
+{
+ const byte cipher = (plain ^ (t1_er >> 8));
+ t1_er = (cipher + t1_er) * t1_c1 + t1_c2;
+ return cipher;
+}
+
+static byte cencrypt(byte plain, unsigned short *cr)
+{
+ const byte cipher = (plain ^ (*cr >> 8));
+ *cr = (cipher + *cr) * t1_c1 + t1_c2;
+ return cipher;
+}
+
+static char *eol(char *s)
+{
+ char *p = strend(s);
+ if (p - s > 1 && p[-1] != 10) {
+ *p++ = 10;
+ *p = 0;
+ }
+ return p;
+}
+
+static float t1_scan_num(char *p, char **r)
+{
+ float f;
+ skip(p, ' ');
+ if (sscanf(p, "%g", &f) != 1) {
+ remove_eol(p, t1_line_array);
+ pdftex_fail("a number expected: `%s'", t1_line_array);
+ }
+ if (r != NULL) {
+ for (; isdigit((unsigned char)*p) || *p == '.' ||
+ *p == 'e' || *p == 'E' || *p == '+' || *p == '-'; p++);
+ *r = p;
+ }
+ return f;
+}
+
+static boolean str_suffix(const char *begin_buf, const char *end_buf,
+ const char *s)
+{
+ const char *s1 = end_buf - 1, *s2 = strend(s) - 1;
+ if (*s1 == 10)
+ s1--;
+ while (s1 >= begin_buf && s2 >= s) {
+ if (*s1-- != *s2--)
+ return false;
+ }
+ return s2 < s;
+}
+
+static void t1_getline(void)
+{
+ int c, l, eexec_scan;
+ char *p;
+ static const char eexec_str[] = "currentfile eexec";
+ static int eexec_len = 17; /* strlen(eexec_str) */
+ restart:
+ if (t1_eof())
+ pdftex_fail("unexpected end of file");
+ t1_line_ptr = t1_line_array;
+ alloc_array(t1_line, 1, T1_BUF_SIZE);
+ t1_cslen = 0;
+ eexec_scan = 0;
+ c = t1_getbyte();
+ if (c == EOF)
+ goto exit;
+ while (!t1_eof()) {
+ if (t1_in_eexec == 1)
+ c = edecrypt((byte)c);
+ alloc_array(t1_line, 1, T1_BUF_SIZE);
+ append_char_to_buf(c, t1_line_ptr, t1_line_array, t1_line_limit);
+ if (t1_in_eexec == 0 && eexec_scan >= 0 && eexec_scan < eexec_len) {
+ if (t1_line_array[eexec_scan] == eexec_str[eexec_scan])
+ eexec_scan++;
+ else
+ eexec_scan = -1;
+ }
+ if (c == 10 || (t1_pfa && eexec_scan == eexec_len && c == 32))
+ break;
+ if (t1_cs && t1_cslen == 0 && (t1_line_ptr - t1_line_array > 4) &&
+ (t1_suffix(" RD ") || t1_suffix(" -| "))) {
+ p = t1_line_ptr - 5;
+ while (*p != ' ')
+ p--;
+ t1_cslen = l = t1_scan_num(p + 1, 0);
+ cs_start = t1_line_ptr - t1_line_array; /* cs_start is an index now */
+ alloc_array(t1_line, l, T1_BUF_SIZE);
+ while (l-- > 0)
+ *t1_line_ptr++ = edecrypt((byte)t1_getbyte());
+ }
+ c = t1_getbyte();
+ }
+ alloc_array(t1_line, 2, T1_BUF_SIZE); /* append_eol can append 2 chars */
+ append_eol(t1_line_ptr, t1_line_array, t1_line_limit);
+ if (t1_line_ptr - t1_line_array < 2)
+ goto restart;
+ if (eexec_scan == eexec_len)
+ t1_in_eexec = 1;
+ exit:
+ /* ensure that t1_buf_array has as much room as t1_line_array */
+ t1_buf_ptr = t1_buf_array;
+ alloc_array(t1_buf, t1_line_limit, t1_line_limit);
+}
+
+static void t1_putline(void)
+{
+ char *p = t1_line_array;
+ if (t1_line_ptr - t1_line_array <= 1)
+ return;
+ if (t1_eexec_encrypt) {
+ while (p < t1_line_ptr)
+ t1_outhex(eencrypt(*p++)); /* dvips outputs hex, unlike pdftex */
+ } else
+ while (p < t1_line_ptr)
+ t1_putchar(*p++);
+}
+
+static void t1_puts(const char *s)
+{
+ if (s != t1_line_array)
+ strcpy(t1_line_array, s);
+ t1_line_ptr = strend(t1_line_array);
+ t1_putline();
+}
+
+static void t1_printf(const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ vsprintf(t1_line_array, fmt, args);
+ t1_puts(t1_line_array);
+ va_end(args);
+}
+
+static void t1_init_params(const char *open_name_prefix)
+{
+ t1_log(open_name_prefix);
+ t1_log(cur_file_name);
+ t1_lenIV = 4;
+ t1_dr = 55665;
+ t1_er = 55665;
+ t1_in_eexec = 0;
+ t1_cs = false;
+ t1_scan = true;
+ t1_synthetic = false;
+ t1_eexec_encrypt = false;
+ t1_block_length = 0;
+ t1_check_pfa();
+}
+
+static void t1_close_font_file(const char *close_name_suffix)
+{
+ t1_log(close_name_suffix);
+ t1_close();
+ cur_file_name = NULL;
+}
+
+static void t1_check_block_len(boolean decrypt)
+{
+ int l, c;
+ if (t1_block_length == 0)
+ return;
+ c = t1_getbyte();
+ if (decrypt)
+ c = edecrypt((byte)c);
+ l = t1_block_length;
+ if (!(l == 0 && (c == 10 || c == 13))) {
+ pdftex_warn("%i bytes more than expected were ignored", l + 1);
+ while (l-- > 0)
+ t1_getbyte();
+ }
+}
+
+static void t1_start_eexec(void)
+{
+ int i;
+ if (is_included(fm_cur)) {
+ get_length1();
+ save_offset();
+ }
+ if (!t1_pfa)
+ t1_check_block_len(false);
+ for (t1_line_ptr = t1_line_array, i = 0; i < 4; i++) {
+ edecrypt((byte)t1_getbyte());
+ *t1_line_ptr++ = 0;
+ }
+ t1_eexec_encrypt = true;
+ if (is_included(fm_cur))
+ t1_putline(); /* to put the first four bytes */
+}
+
+static void t1_stop_eexec(void)
+{
+ int c;
+ if (is_included(fm_cur)) {
+ get_length2();
+ save_offset();
+ }
+ end_last_eexec_line();
+ if (!t1_pfa)
+ t1_check_block_len(true);
+ else {
+ c = edecrypt((byte)t1_getbyte());
+ if (!(c == 10 || c == 13)) {
+ if (last_hexbyte == 0)
+ t1_puts("00");
+ else
+ pdftex_warn("unexpected data after eexec");
+ }
+ }
+ t1_cs = false;
+ t1_in_eexec = 2;
+}
+
+static void t1_scan_param(void)
+{
+ static const char *lenIV = "/lenIV";
+ if (!t1_scan || *t1_line_array != '/')
+ return;
+ if (t1_prefix(lenIV)) {
+ t1_lenIV = t1_scan_num(t1_line_array + strlen(lenIV), 0);
+ if (t1_lenIV < 0)
+ pdftex_fail("negative value of lenIV is not supported");
+ return;
+ }
+ t1_scan_keys();
+}
+
+static void copy_glyph_names(char **glyph_names, int a, int b)
+{
+ if (glyph_names[b] != notdef) {
+ xfree(glyph_names[b]);
+ glyph_names[b] = notdef;
+ }
+ if (glyph_names[a] != notdef) {
+ glyph_names[b] = xstrdup(glyph_names[a]);
+ }
+}
+
+/* read encoding from Type1 font file, return glyph_names array, or pdffail() */
+
+static char **t1_builtin_enc(void)
+{
+ int i, a, b, c, counter = 0;
+ char *r, *p, **glyph_names;
+ /* At this moment "/Encoding" is the prefix of t1_line_array */
+ glyph_names = t1_builtin_glyph_names;
+ for (i = 0; i < 256; i++)
+ glyph_names[i] = notdef;
+ if (t1_suffix("def")) { /* predefined encoding */
+ if (sscanf(t1_line_array + strlen("/Encoding"), "%255s", t1_buf_array) == 1
+ && strcmp(t1_buf_array, "StandardEncoding") == 0) {
+ t1_encoding = ENC_STANDARD;
+ for (i = 0; i < 256; i++) {
+ if (standard_glyph_names[i] != notdef)
+ glyph_names[i] = xstrdup(standard_glyph_names[i]);
+ }
+ return glyph_names;
+ }
+ pdftex_fail("cannot subset font (unknown predefined encoding `%s')",
+ t1_buf_array);
+ }
+ /* At this moment "/Encoding" is the prefix of t1_line_array, and the encoding is
+ * not a predefined encoding.
+ *
+ * We have two possible forms of Encoding vector. The first case is
+ *
+ * /Encoding [/a /b /c...] readonly def
+ *
+ * and the second case can look like
+ *
+ * /Encoding 256 array 0 1 255 {1 index exch /.notdef put} for
+ * dup 0 /x put
+ * dup 1 /y put
+ * ...
+ * readonly def
+ */
+ t1_encoding = ENC_BUILTIN;
+ if (t1_prefix("/Encoding [") || t1_prefix("/Encoding[")) { /* the first case */
+ r = strchr(t1_line_array, '[') + 1;
+ skip(r, ' ');
+ for (;;) {
+ while (*r == '/') {
+ for (p = t1_buf_array, r++;
+ *r != 32 && *r != 10 && *r != ']' && *r != '/';
+ *p++ = *r++);
+ *p = 0;
+ skip(r, ' ');
+ if (counter > 255)
+ pdftex_fail("encoding vector contains more than 256 names");
+ if (strcmp(t1_buf_array, notdef) != 0)
+ glyph_names[counter] = xstrdup(t1_buf_array);
+ counter++;
+ }
+ if (*r != 10 && *r != '%') {
+ if (str_prefix(r, "] def") || str_prefix(r, "] readonly def"))
+ break;
+ else {
+ remove_eol(r, t1_line_array);
+ pdftex_fail
+ ("a name or `] def' or `] readonly def' expected: `%s'", t1_line_array);
+ }
+ }
+ t1_getline();
+ r = t1_line_array;
+ }
+ } else { /* the second case */
+ p = strchr(t1_line_array, 10);
+ for (;;) {
+ if (*p == 10) {
+ t1_getline();
+ p = t1_line_array;
+ }
+ /*
+ check for `dup <index> <glyph> put'
+ */
+ if (sscanf(p, "dup %i%255s put", &i, t1_buf_array) == 2 &&
+ *t1_buf_array == '/' && valid_code(i)) {
+ if (strcmp(t1_buf_array + 1, notdef) != 0)
+ glyph_names[i] = xstrdup(t1_buf_array + 1);
+ p = strstr(p, " put") + strlen(" put");
+ skip(p, ' ');
+ }
+ /*
+ check for `dup dup <to> exch <from> get put'
+ */
+ else if (sscanf(p, "dup dup %i exch %i get put", &b, &a) == 2
+ && valid_code(a) && valid_code(b)) {
+ copy_glyph_names(glyph_names, a, b);
+ p = strstr(p, " get put") + strlen(" get put");
+ skip(p, ' ');
+ }
+ /*
+ check for `dup dup <from> <size> getinterval <to> exch putinterval'
+ */
+ else if (sscanf(p, "dup dup %i %i getinterval %i exch putinterval",
+ &a, &c, &b) == 3
+ && valid_code(a) && valid_code(b) && valid_code(c)) {
+ for (i = 0; i < c; i++)
+ copy_glyph_names(glyph_names, a + i, b + i);
+ p = strstr(p, " putinterval") + strlen(" putinterval");
+ skip(p, ' ');
+ }
+ /*
+ check for `def' or `readonly def'
+ */
+ else if ((p == t1_line_array || (p > t1_line_array && p[-1] == ' '))
+ && strcmp(p, "def\n") == 0)
+ return glyph_names;
+ /*
+ skip an unrecognizable word
+ */
+ else {
+ while (*p != ' ' && *p != 10)
+ p++;
+ skip(p, ' ');
+ }
+ }
+ }
+ return glyph_names;
+}
+
+static void t1_check_end(void)
+{
+ if (t1_eof())
+ return;
+ t1_getline();
+ if (t1_prefix("{restore}"))
+ t1_putline();
+}
+
+static boolean t1_open_fontfile(const char *open_name_prefix)
+{
+ if (!t1_open()) {
+ char *msg = concat ("! Couldn't find font file ", cur_file_name);
+ error(msg);
+ }
+ t1_init_params(open_name_prefix);
+ return true; /* font file found */
+}
+
+#define t1_include()
+
+#define check_subr(subr) \
+ if (subr >= subr_size || subr < 0) \
+ pdftex_fail("Subrs array: entry index out of range (%i)", subr);
+
+static const char **check_cs_token_pair(void)
+{
+ const char **p = (const char **) cs_token_pairs_list;
+ for (; p[0] != NULL; ++p)
+ if (t1_buf_prefix(p[0]) && t1_buf_suffix(p[1]))
+ return p;
+ return NULL;
+}
+
+static void cs_store(boolean is_subr)
+{
+ char *p;
+ cs_entry *ptr;
+ int subr;
+ for (p = t1_line_array, t1_buf_ptr = t1_buf_array; *p != ' ';
+ *t1_buf_ptr++ = *p++);
+ *t1_buf_ptr = 0;
+ if (is_subr) {
+ subr = t1_scan_num(p + 1, 0);
+ check_subr(subr);
+ ptr = subr_tab + subr;
+ } else {
+ ptr = cs_ptr++;
+ if (cs_ptr - cs_tab > cs_size)
+ pdftex_fail
+ ("CharStrings dict: more entries than dict size (%i)", cs_size);
+ if (strcmp(t1_buf_array + 1, notdef) == 0) /* skip the slash */
+ ptr->name = notdef;
+ else
+ ptr->name = xstrdup(t1_buf_array + 1);
+ }
+ /* copy " RD " + cs data to t1_buf_array */
+ memcpy(t1_buf_array, t1_line_array + cs_start - 4,
+ (unsigned) (t1_cslen + 4));
+ /* copy the end of cs data to t1_buf_array */
+ for (p = t1_line_array + cs_start + t1_cslen,
+ t1_buf_ptr = t1_buf_array + t1_cslen + 4;
+ *p != 10; *t1_buf_ptr++ = *p++);
+ *t1_buf_ptr++ = 10;
+ if (is_subr && cs_token_pair == NULL)
+ cs_token_pair = check_cs_token_pair();
+ ptr->len = t1_buf_ptr - t1_buf_array;
+ ptr->cslen = t1_cslen;
+ ptr->data = xtalloc(ptr->len, byte);
+ memcpy(ptr->data, t1_buf_array, ptr->len);
+ ptr->valid = true;
+}
+
+#define store_subr() cs_store(true)
+#define store_cs() cs_store(false)
+
+#define CC_STACK_SIZE 24
+
+static integer cc_stack[CC_STACK_SIZE], *stack_ptr = cc_stack;
+static cc_entry cc_tab[CS_MAX];
+static boolean is_cc_init = false;
+
+#define cc_pop(N) \
+ if (stack_ptr - cc_stack < (N)) \
+ stack_error(N); \
+ stack_ptr -= N
+
+#define stack_error(N) { \
+ pdftex_fail("CharString: invalid access (%i) to stack (%i entries)", \
+ (int) N, (int)(stack_ptr - cc_stack)); \
+ goto cs_error; \
+}
+
+/*
+static integer cc_get(integer index)
+{
+ if (index < 0) {
+ if (stack_ptr + index < cc_stack )
+ stack_error(stack_ptr - cc_stack + index);
+ return *(stack_ptr + index);
+ }
+ else {
+ if (cc_stack + index >= stack_ptr)
+ stack_error(index);
+ return cc_stack[index];
+ }
+}
+*/
+
+#define cc_get(N) ((N) < 0 ? *(stack_ptr + (N)) : *(cc_stack + (N)))
+#define cc_push(V) *stack_ptr++ = V
+#define cc_clear() stack_ptr = cc_stack
+#define set_cc(N, B, A, C) \
+ cc_tab[N].nargs = A; \
+ cc_tab[N].bottom = B; \
+ cc_tab[N].clear = C; \
+ cc_tab[N].valid = true
+
+static void cc_init(void)
+{
+ int i;
+ if (is_cc_init)
+ return;
+ for (i = 0; i < CS_MAX; i++)
+ cc_tab[i].valid = false;
+ set_cc(CS_HSTEM, true, 2, true);
+ set_cc(CS_VSTEM, true, 2, true);
+ set_cc(CS_VMOVETO, true, 1, true);
+ set_cc(CS_RLINETO, true, 2, true);
+ set_cc(CS_HLINETO, true, 1, true);
+ set_cc(CS_VLINETO, true, 1, true);
+ set_cc(CS_RRCURVETO, true, 6, true);
+ set_cc(CS_CLOSEPATH, false, 0, true);
+ set_cc(CS_CALLSUBR, false, 1, false);
+ set_cc(CS_RETURN, false, 0, false);
+ /*
+ set_cc(CS_ESCAPE, false, 0, false);
+ */
+ set_cc(CS_HSBW, true, 2, true);
+ set_cc(CS_ENDCHAR, false, 0, true);
+ set_cc(CS_RMOVETO, true, 2, true);
+ set_cc(CS_HMOVETO, true, 1, true);
+ set_cc(CS_VHCURVETO, true, 4, true);
+ set_cc(CS_HVCURVETO, true, 4, true);
+ set_cc(CS_DOTSECTION, false, 0, true);
+ set_cc(CS_VSTEM3, true, 6, true);
+ set_cc(CS_HSTEM3, true, 6, true);
+ set_cc(CS_SEAC, true, 5, true);
+ set_cc(CS_SBW, true, 4, true);
+ set_cc(CS_DIV, false, 2, false);
+ set_cc(CS_CALLOTHERSUBR, false, 0, false);
+ set_cc(CS_POP, false, 0, false);
+ set_cc(CS_SETCURRENTPOINT, true, 2, true);
+ is_cc_init = true;
+}
+
+#define cs_getchar() cdecrypt(*data++, &cr)
+
+#define mark_subr(n) cs_mark(0, n)
+#define mark_cs(s) cs_mark(s, 0)
+
+static void cs_fail(const char *cs_name, int subr, const char *fmt, ...)
+{
+ char buf[SMALL_BUF_SIZE];
+ va_list args;
+ va_start(args, fmt);
+ vsprintf(buf, fmt, args);
+ va_end(args);
+ if (cs_name == NULL)
+ pdftex_warn("Subr (%i): %s", (int) subr, buf);
+ else
+ pdftex_warn("CharString (/%s): %s", cs_name, buf);
+}
+
+/* fix a return-less subr by appending CS_RETURN */
+static void append_cs_return(cs_entry *ptr)
+{
+ unsigned short cr;
+ int i;
+ byte *p, *q, *data, *new_data;
+ assert(ptr != NULL && ptr->valid && ptr->used);
+
+ /* decrypt the cs data to t1_buf_array, append CS_RETURN */
+ p = (byte *) t1_buf_array;
+ data = ptr->data + 4;
+ cr = 4330;
+ for (i = 0; i < ptr->cslen; i++)
+ *p++ = cs_getchar();
+ *p = CS_RETURN;
+
+ /* encrypt the new cs data to new_data */
+ new_data = xtalloc(ptr->len + 1, byte);
+ memcpy(new_data, ptr->data, 4);
+ p = new_data + 4;
+ q = (byte *) t1_buf_array;
+ cr = 4330;
+ for (i = 0; i < ptr->cslen + 1; i++)
+ *p++ = cencrypt(*q++, &cr);
+ memcpy(p, ptr->data + 4 + ptr->cslen, ptr->len - ptr->cslen - 4);
+
+ /* update *ptr */
+ xfree(ptr->data);
+ ptr->data = new_data;
+ ptr->len++;
+ ptr->cslen++;
+}
+
+static void cs_mark(const char *cs_name, int subr)
+{
+ byte *data;
+ int i, b, cs_len;
+ int last_cmd = 0;
+ integer a, a1, a2;
+ unsigned short cr;
+ static integer lastargOtherSubr3 = 3; /* the argument of last call to
+ OtherSubrs[3] */
+ cs_entry *ptr;
+ cc_entry *cc;
+ if (cs_name == NULL) {
+ check_subr(subr);
+ ptr = subr_tab + subr;
+ if (!ptr->valid)
+ return;
+ } else {
+ if (cs_notdef != NULL &&
+ (cs_name == notdef || strcmp(cs_name, notdef) == 0))
+ ptr = cs_notdef;
+ else {
+ for (ptr = cs_tab; ptr < cs_ptr; ptr++)
+ if (strcmp(ptr->name, cs_name) == 0)
+ break;
+ if (ptr == cs_ptr) {
+ pdftex_warn("glyph `%s' undefined", cs_name);
+ return;
+ }
+ if (ptr->name == notdef)
+ cs_notdef = ptr;
+ }
+ }
+ /* only marked CharString entries and invalid entries can be skipped;
+ valid marked subrs must be parsed to keep the stack in sync */
+ if (!ptr->valid || (ptr->used && cs_name != NULL))
+ return;
+ ptr->used = true;
+ cr = 4330;
+ cs_len = ptr->cslen;
+ data = ptr->data + 4;
+ for (i = 0; i < t1_lenIV; i++, cs_len--)
+ cs_getchar();
+ while (cs_len > 0) {
+ --cs_len;
+ b = cs_getchar();
+ if (b >= 32) {
+ if (b <= 246)
+ a = b - 139;
+ else if (b <= 250) {
+ --cs_len;
+ a = ((b - 247) << 8) + 108 + cs_getchar();
+ } else if (b <= 254) {
+ --cs_len;
+ a = -((b - 251) << 8) - 108 - cs_getchar();
+ } else {
+ cs_len -= 4;
+ a = (cs_getchar() & 0xff) << 24;
+ a |= (cs_getchar() & 0xff) << 16;
+ a |= (cs_getchar() & 0xff) << 8;
+ a |= (cs_getchar() & 0xff) << 0;
+ if (sizeof(integer) > 4 && (a & 0x80000000))
+ a |= ~0x7FFFFFFF;
+ }
+ cc_push(a);
+ } else {
+ if (b == CS_ESCAPE) {
+ b = cs_getchar() + CS_1BYTE_MAX;
+ cs_len--;
+ }
+ if (b >= CS_MAX) {
+ cs_fail(cs_name, subr, "command value out of range: %i",
+ (int) b);
+ goto cs_error;
+ }
+ cc = cc_tab + b;
+ if (!cc->valid) {
+ cs_fail(cs_name, subr, "command not valid: %i", (int) b);
+ goto cs_error;
+ }
+ if (cc->bottom) {
+ if (stack_ptr - cc_stack < cc->nargs)
+ cs_fail(cs_name, subr,
+ "less arguments on stack (%i) than required (%i)",
+ (int) (stack_ptr - cc_stack), (int) cc->nargs);
+ else if (stack_ptr - cc_stack > cc->nargs)
+ cs_fail(cs_name, subr,
+ "more arguments on stack (%i) than required (%i)",
+ (int) (stack_ptr - cc_stack), (int) cc->nargs);
+ }
+ last_cmd = b;
+ switch (cc - cc_tab) {
+ case CS_CALLSUBR:
+ a1 = cc_get(-1);
+ cc_pop(1);
+ mark_subr(a1);
+ if (!subr_tab[a1].valid) {
+ cs_fail(cs_name, subr, "cannot call subr (%i)", (int) a1);
+ goto cs_error;
+ }
+ break;
+ case CS_DIV:
+ cc_pop(2);
+ cc_push(0);
+ break;
+ case CS_CALLOTHERSUBR:
+ if (cc_get(-1) == 3)
+ lastargOtherSubr3 = cc_get(-3);
+ a1 = cc_get(-2) + 2;
+ cc_pop(a1);
+ break;
+ case CS_POP:
+ cc_push(lastargOtherSubr3);
+ /* the only case when we care about the value being pushed onto
+ stack is when POP follows CALLOTHERSUBR (changing hints by
+ OtherSubrs[3])
+ */
+ break;
+ case CS_SEAC:
+ a1 = cc_get(3);
+ a2 = cc_get(4);
+ cc_clear();
+ mark_cs(standard_glyph_names[a1]);
+ mark_cs(standard_glyph_names[a2]);
+ break;
+ default:
+ if (cc->clear)
+ cc_clear();
+ }
+ }
+ }
+ if (cs_name == NULL && last_cmd != CS_RETURN) {
+ pdftex_warn("last command in subr `%i' is not a RETURN; "
+ "I will add it now but please consider fixing the font",
+ (int) subr);
+ append_cs_return(ptr);
+ }
+ return;
+ cs_error: /* an error occured during parsing */
+ cc_clear();
+ ptr->valid = false;
+ ptr->used = false;
+}
+
+static void t1_subset_ascii_part(void)
+{
+ int i, j;
+ t1_getline();
+ while (!t1_prefix("/Encoding")) {
+ t1_scan_param();
+ if (!(t1_prefix("/UniqueID")
+ && !strncmp(t1_line_array + strlen(t1_line_array) -4, "def", 3)))
+ t1_putline();
+ t1_getline();
+ }
+ if (is_reencoded(fm_cur))
+ t1_glyph_names = external_enc();
+ else
+ t1_glyph_names = t1_builtin_enc();
+ if (is_included(fm_cur) && is_subsetted(fm_cur)) {
+ make_subset_tag(fm_cur, t1_glyph_names);
+ update_subset_tag();
+ }
+ if (t1_encoding == ENC_STANDARD)
+ t1_puts("/Encoding StandardEncoding def\n");
+ else {
+ t1_puts
+ ("/Encoding 256 array\n0 1 255 {1 index exch /.notdef put} for\n");
+ for (i = 0, j = 0; i < 256; i++) {
+ if (is_used_char(i) && t1_glyph_names[i] != notdef) {
+ j++;
+ t1_printf("dup %i /%s put\n", (int)t1_char(i), t1_glyph_names[i]);
+ }
+ }
+ if (j == 0)
+ /* We didn't mark anything for the Encoding array. */
+ /* We add "dup 0 /.notdef put" for compatibility */
+ /* with Acrobat 5.0. */
+ t1_puts("dup 0 /.notdef put\n");
+ t1_puts("readonly def\n");
+ }
+ do {
+ t1_getline();
+ t1_scan_param();
+ if (!t1_prefix("/UniqueID")) /* ignore UniqueID for subsetted fonts */
+ t1_putline();
+ } while (t1_in_eexec == 0);
+}
+
+static void cs_init(void)
+{
+ cs_ptr = cs_tab = NULL;
+ cs_dict_start = cs_dict_end = NULL;
+ cs_count = cs_size = cs_size_pos = 0;
+ cs_token_pair = NULL;
+ subr_tab = NULL;
+ subr_array_start = subr_array_end = NULL;
+ subr_max = subr_size = subr_size_pos = 0;
+}
+
+static void init_cs_entry(cs_entry *cs)
+{
+ cs->data = NULL;
+ cs->name = NULL;
+ cs->len = 0;
+ cs->cslen = 0;
+ cs->used = false;
+ cs->valid = false;
+}
+
+static void t1_read_subrs(void)
+{
+ int i, s;
+ cs_entry *ptr;
+ t1_getline();
+ while (!(t1_charstrings() || t1_subrs())) {
+ t1_scan_param();
+ t1_putline();
+ t1_getline();
+ }
+ found:
+ t1_cs = true;
+ t1_scan = false;
+ if (!t1_subrs())
+ return;
+ subr_size_pos = strlen("/Subrs") + 1;
+ /* subr_size_pos points to the number indicating dict size after "/Subrs" */
+ subr_size = t1_scan_num(t1_line_array + subr_size_pos, 0);
+ if (subr_size == 0) {
+ while (!t1_charstrings())
+ t1_getline();
+ return;
+ }
+ subr_tab = xtalloc(subr_size, cs_entry);
+ for (ptr = subr_tab; ptr - subr_tab < subr_size; ptr++)
+ init_cs_entry(ptr);
+ subr_array_start = xstrdup(t1_line_array);
+ t1_getline();
+ while (t1_cslen) {
+ store_subr();
+ t1_getline();
+ }
+ /* mark the first four entries without parsing */
+ for (i = 0; i < subr_size && i < 4; i++)
+ subr_tab[i].used = true;
+ /* the end of the Subrs array might have more than one line so we need to
+ concatnate them to subr_array_end. Unfortunately some fonts don't have
+ the Subrs array followed by the CharStrings dict immediately (synthetic
+ fonts). If we cannot find CharStrings in next POST_SUBRS_SCAN lines then
+ we will treat the font as synthetic and ignore everything until next
+ Subrs is found
+ */
+
+#define POST_SUBRS_SCAN 5
+
+ s = 0;
+ *t1_buf_array = 0;
+ for (i = 0; i < POST_SUBRS_SCAN; i++) {
+ if (t1_charstrings())
+ break;
+ s += t1_line_ptr - t1_line_array;
+ alloc_array(t1_buf, s, T1_BUF_SIZE);
+ strcat(t1_buf_array, t1_line_array);
+ t1_getline();
+ }
+ subr_array_end = xstrdup(t1_buf_array);
+ if (i == POST_SUBRS_SCAN) { /* CharStrings not found;
+ suppose synthetic font */
+ for (ptr = subr_tab; ptr - subr_tab < subr_size; ptr++)
+ if (ptr->valid)
+ xfree(ptr->data);
+ xfree(subr_tab);
+ xfree(subr_array_start);
+ xfree(subr_array_end);
+ cs_init();
+ t1_cs = false;
+ t1_synthetic = true;
+ while (!(t1_charstrings() || t1_subrs()))
+ t1_getline();
+ goto found;
+ }
+}
+
+#define t1_subr_flush() t1_flush_cs(true)
+#define t1_cs_flush() t1_flush_cs(false)
+
+static void t1_flush_cs(boolean is_subr)
+{
+ char *p;
+ byte *r, *return_cs = NULL;
+ cs_entry *tab, *end_tab, *ptr;
+ char *start_line, *line_end;
+ int count, size_pos;
+ unsigned short cr, cs_len = 0; /* to avoid warning about uninitialized use of cs_len */
+ if (is_subr) {
+ start_line = subr_array_start;
+ line_end = subr_array_end;
+ size_pos = subr_size_pos;
+ tab = subr_tab;
+ count = subr_max + 1;
+ end_tab = subr_tab + count;
+ } else {
+ start_line = cs_dict_start;
+ line_end = cs_dict_end;
+ size_pos = cs_size_pos;
+ tab = cs_tab;
+ end_tab = cs_ptr;
+ count = cs_count;
+ }
+ t1_line_ptr = t1_line_array;
+ for (p = start_line; p - start_line < size_pos;)
+ *t1_line_ptr++ = *p++;
+ while (isdigit((unsigned char)*p))
+ p++;
+ sprintf(t1_line_ptr, "%u", count);
+ strcat(t1_line_ptr, p);
+ t1_line_ptr = eol(t1_line_array);
+ t1_putline();
+
+ /* create return_cs to replace unused subr's */
+ if (is_subr) {
+ cr = 4330;
+ cs_len = 0;
+ /* at this point we have t1_lenIV >= 0;
+ * a negative value would be caught in t1_scan_param() */
+ return_cs = xtalloc(t1_lenIV + 1, byte);
+ for (cs_len = 0, r = return_cs; cs_len < t1_lenIV; cs_len++, r++)
+ *r = cencrypt(0x00, &cr);
+ *r = cencrypt(CS_RETURN, &cr);
+ cs_len++;
+ }
+
+ for (ptr = tab; ptr < end_tab; ptr++) {
+ if (ptr->used) {
+ if (is_subr)
+ sprintf(t1_line_array, "dup %lu %u",
+ (unsigned long) (ptr - tab), ptr->cslen);
+ else
+ sprintf(t1_line_array, "/%s %u", ptr->name, ptr->cslen);
+ p = strend(t1_line_array);
+ memcpy(p, ptr->data, ptr->len);
+ t1_line_ptr = p + ptr->len;
+ t1_putline();
+ } else {
+ /* replace unsused subr's by return_cs */
+ if (is_subr) {
+ sprintf(t1_line_array, "dup %lu %u%s ",
+ (unsigned long) (ptr - tab), cs_len, cs_token_pair[0]);
+ p = strend(t1_line_array);
+ memcpy(p, return_cs, cs_len);
+ t1_line_ptr = p + cs_len;
+ t1_putline();
+ sprintf(t1_line_array, " %s", cs_token_pair[1]);
+ t1_line_ptr = eol(t1_line_array);
+ t1_putline();
+ }
+ }
+ xfree(ptr->data);
+ if (ptr->name != notdef)
+ xfree(ptr->name);
+ }
+ sprintf(t1_line_array, "%s", line_end);
+ t1_line_ptr = eol(t1_line_array);
+ t1_putline();
+ if (is_subr)
+ xfree(return_cs);
+ xfree(tab);
+ xfree(start_line);
+ xfree(line_end);
+}
+
+static void t1_mark_glyphs(void)
+{
+ int i;
+ char *charset = extra_charset();
+ char *g, *s, *r;
+ cs_entry *ptr;
+ if (t1_synthetic || embed_all_glyphs(tex_font)) { /* mark everything */
+ if (cs_tab != NULL)
+ for (ptr = cs_tab; ptr < cs_ptr; ptr++)
+ if (ptr->valid)
+ ptr->used = true;
+ if (subr_tab != NULL) {
+ for (ptr = subr_tab; ptr - subr_tab < subr_size; ptr++)
+ if (ptr->valid)
+ ptr->used = true;
+ subr_max = subr_size - 1;
+ }
+ return;
+ }
+ mark_cs(notdef);
+ for (i = 0; i < 256; i++)
+ if (is_used_char(i)) {
+ if (t1_glyph_names[i] == notdef)
+ pdftex_warn("character %i is mapped to %s", i, notdef);
+ else
+ mark_cs(t1_glyph_names[i]);
+ }
+ if (charset == NULL)
+ goto set_subr_max;
+ g = s = charset + 1; /* skip the first '/' */
+ r = strend(g);
+ while (g < r) {
+ while (*s != '/' && s < r)
+ s++;
+ *s = 0; /* terminate g by rewriting '/' to 0 */
+ mark_cs(g);
+ g = s + 1;
+ }
+ set_subr_max:
+ if (subr_tab != NULL)
+ for (subr_max = -1, ptr = subr_tab; ptr - subr_tab < subr_size; ptr++)
+ if (ptr->used && ptr - subr_tab > subr_max)
+ subr_max = ptr - subr_tab;
+}
+
+static void t1_check_unusual_charstring(void)
+{
+ char *p = strstr(t1_line_array, charstringname) + strlen(charstringname);
+ int i;
+ /* if no number follows "/CharStrings", let's read the next line */
+ if (sscanf(p, "%i", &i) != 1) {
+ /* pdftex_warn("no number found after `%s', I assume it's on the next line",
+ charstringname); */
+ strcpy(t1_buf_array, t1_line_array);
+
+ /* t1_getline always appends EOL to t1_line_array; let's change it to
+ * space before appending the next line
+ */
+ *(strend(t1_buf_array) - 1) = ' ';
+
+ t1_getline();
+ alloc_array(t1_buf, strlen(t1_line_array)
+ + (t1_buf_array ? strlen(t1_buf_array) + 1 : 0),
+ T1_BUF_SIZE);
+ strcat(t1_buf_array, t1_line_array);
+ alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+ strcpy(t1_line_array, t1_buf_array);
+ t1_line_ptr = eol(t1_line_array);
+ }
+}
+
+static void t1_subset_charstrings(void)
+{
+ cs_entry *ptr;
+
+ /* at this point t1_line_array contains "/CharStrings".
+ when we hit a case like this:
+ dup/CharStrings
+ 229 dict dup begin
+ we read the next line and concatenate to t1_line_array before moving on
+ */
+ t1_check_unusual_charstring();
+
+ cs_size_pos = strstr(t1_line_array, charstringname)
+ + strlen(charstringname) - t1_line_array + 1;
+ /* cs_size_pos points to the number indicating
+ dict size after "/CharStrings" */
+ cs_size = t1_scan_num(t1_line_array + cs_size_pos, 0);
+ cs_ptr = cs_tab = xtalloc(cs_size, cs_entry);
+ for (ptr = cs_tab; ptr - cs_tab < cs_size; ptr++)
+ init_cs_entry(ptr);
+ cs_notdef = NULL;
+ cs_dict_start = xstrdup(t1_line_array);
+ t1_getline();
+ while (t1_cslen) {
+ store_cs();
+ t1_getline();
+ }
+ cs_dict_end = xstrdup(t1_line_array);
+ t1_mark_glyphs();
+ if (subr_tab != NULL) {
+ if (cs_token_pair == NULL)
+ pdftex_fail
+ ("This Type 1 font uses mismatched subroutine begin/end token pairs.");
+ t1_subr_flush();
+ }
+ for (cs_count = 0, ptr = cs_tab; ptr < cs_ptr; ptr++)
+ if (ptr->used)
+ cs_count++;
+ t1_cs_flush();
+}
+
+static void t1_subset_end(void)
+{
+ if (t1_synthetic) { /* copy to "dup /FontName get exch definefont pop" */
+ while (!strstr(t1_line_array, "definefont")) {
+ t1_getline();
+ t1_putline();
+ }
+ while (!t1_end_eexec())
+ t1_getline(); /* ignore the rest */
+ t1_putline(); /* write "mark currentfile closefile" */
+ } else
+ while (!t1_end_eexec()) { /* copy to "mark currentfile closefile" */
+ t1_getline();
+ t1_putline();
+ }
+ t1_stop_eexec();
+ if (fixedcontent) { /* copy 512 zeros (not needed for PDF) */
+ while (!t1_cleartomark()) {
+ t1_getline();
+ t1_putline();
+ }
+ if (!t1_synthetic) /* don't check "{restore}if" for synthetic fonts */
+ t1_check_end(); /* write "{restore}if" if found */
+ }
+ get_length3();
+}
+
+static void writet1(void)
+{
+ read_encoding_only = false;
+ if (!is_included(fm_cur)) { /* scan parameters from font file */
+ if (!t1_open_fontfile("{"))
+ return;
+ t1_scan_only();
+ t1_close_font_file("}");
+ return;
+ }
+ if (!is_subsetted(fm_cur)) { /* include entire font */
+ if (!t1_open_fontfile("<<"))
+ return;
+ t1_include();
+ t1_close_font_file(">>");
+ return;
+ }
+ /* partial downloading */
+ if (!t1_open_fontfile("<"))
+ return;
+ t1_subset_ascii_part();
+ t1_start_eexec();
+ cc_init();
+ cs_init();
+ t1_read_subrs();
+ t1_subset_charstrings();
+ t1_subset_end();
+ t1_close_font_file(">");
+}
+
+boolean t1_subset_2(char *fontfile, unsigned char *g, char *extraGlyphs)
+{
+ int i;
+ for (i = 0; i < 256; i++)
+ ext_glyph_names[i] = (char*) notdef;
+ grid = g;
+ cur_file_name = fontfile;
+ hexline_length = 0;
+ dvips_extra_charset = extraGlyphs;
+ writet1();
+ for (i = 0; i < 256; i++)
+ if (ext_glyph_names[i] != notdef)
+ free(ext_glyph_names[i]);
+ return 1; /* note: there *is* no unsuccessful return */
+}