diff options
Diffstat (limited to 'Build/source/texk/web2c/mpdir/writet1.c')
-rw-r--r-- | Build/source/texk/web2c/mpdir/writet1.c | 1736 |
1 files changed, 1736 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/mpdir/writet1.c b/Build/source/texk/web2c/mpdir/writet1.c new file mode 100644 index 00000000000..bbfd398aa3b --- /dev/null +++ b/Build/source/texk/web2c/mpdir/writet1.c @@ -0,0 +1,1736 @@ +/* Copyright (c) 2006 Taco Hoekwater <taco@elvenkind.com> + +This file is part of MetaPost. + +MetaPost 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. + +MetaPost 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 MetaPost; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +$Id$ + +*/ + +static const char perforce_id[] = + "$Id: //depot/Build/source.development/TeX/texk/web2c/pdftexdir/writet1.c#25 $"; + +# include "mplib.h" +# define t1_open() \ + open_input(&t1_file, kpse_type1_format, FOPEN_RBIN_MODE) +# define enc_open() \ + open_input(&enc_file, kpse_enc_format, FOPEN_RBIN_MODE) +# define external_enc() (fm_cur->encoding)->glyph_names + +# define full_file_name() cur_file_name +# define get_length1() +# define get_length2() +# define get_length3() +# define is_used_char(c) mpcharmarked(tex_font, c) +# define out_eexec_char t1_outhex +# define save_offset() +# define end_last_eexec_line() \ + hexline_length = HEXLINE_WIDTH; \ + end_hexline(); \ + t1_eexec_encrypt = false +# define t1_log(s) mp_printf(s) +# define t1_putchar(c) fputc(c, bitfile) +# define embed_all_glyphs(tex_font) false +# undef pdfmovechars +# ifdef SHIFTLOWCHARS +extern char errbuf[]; +extern Boolean 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 update_subset_tag() + +# define fixedcontent true + +static char *dvips_extra_charset; +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; +const char notdef[] = ".notdef"; +/* static size_t last_ptr_index; */ + +#include <kpathsea/c-vararg.h> +#include <kpathsea/c-proto.h> +#include <string.h> + +#define t1_getchar() getc(t1_file) +#define t1_ungetchar(c) ungetc(c, t1_file) +#define t1_eof() feof(t1_file) +#define t1_close() xfclose(t1_file, cur_file_name) + +#define enc_getchar() getc(enc_file) +#define enc_eof() feof(enc_file) +#define enc_close() xfclose(enc_file, cur_file_name) + +#define valid_code(c) (c >= 0 && c < 256) + +static const char *standard_glyph_names[256] = + { notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, + notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, + notdef, notdef, notdef, notdef, notdef, notdef, + notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, + "space", "exclam", "quotedbl", "numbersign", + "dollar", "percent", "ampersand", "quoteright", "parenleft", + "parenright", "asterisk", "plus", "comma", "hyphen", "period", + "slash", "zero", "one", "two", "three", "four", "five", "six", "seven", + "eight", "nine", "colon", "semicolon", "less", + "equal", "greater", "question", "at", "A", "B", "C", "D", "E", "F", + "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", + "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "bracketleft", + "backslash", "bracketright", "asciicircum", "underscore", + "quoteleft", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", + "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", + "w", "x", "y", "z", "braceleft", "bar", "braceright", "asciitilde", + notdef, notdef, notdef, notdef, notdef, notdef, notdef, + notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, + notdef, notdef, notdef, notdef, notdef, notdef, + notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, + notdef, notdef, notdef, "exclamdown", "cent", + "sterling", "fraction", "yen", "florin", "section", "currency", + "quotesingle", "quotedblleft", "guillemotleft", + "guilsinglleft", "guilsinglright", "fi", "fl", notdef, "endash", + "dagger", "daggerdbl", "periodcentered", notdef, + "paragraph", "bullet", "quotesinglbase", "quotedblbase", + "quotedblright", "guillemotright", "ellipsis", "perthousand", + notdef, "questiondown", notdef, "grave", "acute", "circumflex", + "tilde", "macron", "breve", "dotaccent", "dieresis", notdef, + "ring", "cedilla", notdef, "hungarumlaut", "ogonek", "caron", "emdash", + notdef, notdef, notdef, notdef, notdef, notdef, + notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, notdef, + notdef, "AE", notdef, "ordfeminine", notdef, notdef, + notdef, notdef, "Lslash", "Oslash", "OE", "ordmasculine", notdef, + notdef, notdef, notdef, notdef, "ae", notdef, notdef, + notdef, "dotlessi", notdef, notdef, "lslash", "oslash", "oe", + "germandbls", notdef, notdef, notdef, notdef +}; + +static char charstringname[] = "/CharStrings"; + +char **t1_glyph_names; +char *t1_builtin_glyph_names[256]; +char charsetstr[0x4000]; +static boolean read_encoding_only; +static int t1_encoding; + +#define T1_BUF_SIZE 0x10 +#define ENC_BUF_SIZE 0x1000 + +#define ENC_STANDARD 0 +#define ENC_BUILTIN 1 + +#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; + +#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") + + +#ifndef pdfTeX +# define HEXLINE_WIDTH 64 + +static void end_hexline () +{ + if (hexline_length == HEXLINE_WIDTH) { + fputs ("\n", bitfile); + hexline_length = 0; + } +} + +static void t1_outhex (byte b) +{ + static char *hexdigits = "0123456789ABCDEF"; + t1_putchar (hexdigits[b / 16]); + t1_putchar (hexdigits[b % 16]); + hexline_length += 2; + end_hexline (); +} +#endif /* pdfTeX */ + + +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; +} + +void load_enc (char *enc_name, char **enc_encname, char **glyph_names) +{ + char buf[ENC_BUF_SIZE], *p, *r; + int names_count; + char *myname; + set_cur_file_name (enc_name); + if (!enc_open ()) { + pdftex_warn ("cannot open encoding file for reading"); + cur_file_name = NULL; + return; + } + 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); + } + while (*(r-1)==' ') r--; /* strip trailing spaces from encoding name */ + myname = xmalloc(r-enc_line); + memcpy(myname,enc_line+1,(r-enc_line)-1); + *(myname+(r-enc_line-1))=0; + *enc_encname = myname; + while (*r!='[') r++; + r++; /* skip '[' */ + names_count = 0; + skip (r, ' '); + for (;;) { + while (*r == '/') { + for (p = buf, r++; + *r != ' ' && *r != 10 && *r != ']' && *r != '/'; *p++ = *r++); + *p = 0; + skip (r, ' '); + if (names_count > 256) + 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; +} + +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 (*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 (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 (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) + out_eexec_char (eencrypt (*p++)); + } 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) +{ + if ((open_name_prefix != NULL) && strlen(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) +{ + if ((close_name_suffix != NULL) && strlen(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 (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 (fm_entry *fm_cur) +{ + 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 (t1_getbyte ()); + *t1_line_ptr++ = 0; + } + t1_eexec_encrypt = true; + if (!read_encoding_only) + if (is_included (fm_cur)) + t1_putline (); /* to put the first four bytes */ +} + +static void t1_stop_eexec (fm_entry *fm_cur) +{ + 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 (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; +} + +#ifdef pdfTeX +/* macros for various transforms; currently only slant and extend are used */ +# define do_xshift(x,a) {x[4]+=a;} +# define do_yshift(x,a) {x[5]+=a;} +# define do_xscale(x,a) {x[0]*=a; x[2]*=a; x[4]*=a;} +# define do_yscale(x,a) {x[1]*=a; x[3]*=a; x[5]*=a;} +# define do_extend(x,a) {do_xscale(x,a);} +# define do_scale(x,a) {do_xscale(x,a); do_yscale(x,a);} +# define do_slant(x,a) {x[0]+=x[1]*(a); x[2]+=x[3]*(a); x[4]+=x[5]*(a);} +# define do_shear(x,a) {x[1]+=x[0]*(a); x[3]+=x[2]*(a); x[5]+=x[4]*(a);} +# define do_rotate(x,a) \ + {float t, u=cos(a), v=sin(a); \ + t =x[0]*u+x[1]*-v; \ + x[1] =x[0]*v+x[1]* u; x[0]=t; \ + t =x[2]*u+x[3]*-v; \ + x[3] =x[2]*v+x[3]* u; x[2]=t; \ + t =x[4]*u+x[5]*-v; \ + x[5] =x[4]*v+x[5]* u; x[4]=t;} + +static void t1_modify_fm (void) +{ + /* + * font matrix is given as six numbers a0..a5, which stands for the matrix + * + * a0 a1 0 + * M = a2 a3 0 + * a4 a5 1 + * + * ExtendFont is given as + * + * e 0 0 + * E = 0 1 0 + * 0 0 1 + * + * SlantFont is given as + * + * 1 0 0 + * S = s 1 0 + * 0 0 1 + * + * The slant transform must be done _before_ the extend transform + * for compatibility! + */ + float a[6]; + int i, c; + char *p, *q, *r; + if ((p = strchr (t1_line_array, '[')) == 0) + if ((p = strchr (t1_line_array, '{')) == 0) { + remove_eol (p, t1_line_array); + pdftex_fail ("FontMatrix: an array expected: `%s'", t1_line_array); + } + c = *p++; /* save the character '[' resp. '{' */ + strncpy (t1_buf_array, t1_line_array, (size_t) (p - t1_line_array)); + r = t1_buf_array + (p - t1_line_array); + for (i = 0; i < 6; i++) { + a[i] = t1_scan_num (p, &q); + p = q; + } + if (fm_slant (fm_cur) != 0) + do_slant (a, fm_slant (fm_cur) * 1E-3); + if (fm_extend (fm_cur) != 0) + do_extend (a, fm_extend (fm_cur) * 1E-3); + for (i = 0; i < 6; i++) { + sprintf (r, "%g ", a[i]); + r = strend (r); + } + if (c == '[') { + while (*p != ']' && *p != 0) + p++; + } else { + while (*p != '}' && *p != 0) + p++; + } + if (*p == 0) { + remove_eol (p, t1_line_array); + pdftex_fail + ("FontMatrix: cannot find the corresponding character to '%c': `%s'", + c, t1_line_array); + } + strcpy (r, p); + strcpy (t1_line_array, t1_buf_array); + t1_line_ptr = eol (t1_line_array); +} + +static void t1_modify_italic (void) +{ + float a; + char *p, *r; + if (fm_slant (fm_cur) == 0) + return; + p = strchr (t1_line_array, ' '); + strncpy (t1_buf_array, t1_line_array, (size_t) (p - t1_line_array + 1)); + a = t1_scan_num (p + 1, &r); + a -= atan (fm_slant (fm_cur) * 1E-3) * (180 / M_PI); + sprintf (t1_buf_array + (p - t1_line_array + 1), "%g", a); + strcpy (strend (t1_buf_array), r); + strcpy (t1_line_array, t1_buf_array); + t1_line_ptr = eol (t1_line_array); + font_keys[ITALIC_ANGLE_CODE].value = round (a); + font_keys[ITALIC_ANGLE_CODE].valid = true; +} + +#else + +static void t1_modify_fm (void) +{ + // t1_line_ptr = eol (t1_line_array); +} + +static void t1_modify_italic (void) +{ + // t1_line_ptr = eol (t1_line_array); +} + +#endif /* pdfTeX */ + +key_entry font_keys[FONT_KEYS_NUM] = { + {"Ascent", "Ascender", 0, false}, + {"CapHeight", "CapHeight", 0, false}, + {"Descent", "Descender", 0, false}, + {"FontName", "FontName", 0, false}, + {"ItalicAngle", "ItalicAngle", 0, false}, + {"StemV", "StdVW", 0, false}, + {"XHeight", "XHeight", 0, false}, + {"FontBBox", "FontBBox", 0, false}, + {"", "", 0, false}, + {"", "", 0, false}, + {"", "", 0, false} +}; + + +static void t1_scan_keys (int tex_font,fm_entry *fm_cur) +{ + int i, k; + char *p, *q, *r; + key_entry *key; + if (fm_extend (fm_cur) != 0 || fm_slant (fm_cur) != 0) { + if (t1_prefix ("/FontMatrix")) { + t1_modify_fm (); + return; + } + if (t1_prefix ("/ItalicAngle")) { + t1_modify_italic (); + return; + } + } + if (t1_prefix ("/FontType")) { + p = t1_line_array + strlen ("FontType") + 1; + if ((i = t1_scan_num (p, 0)) != 1) + pdftex_fail ("Type%d fonts unsupported by metapost", i); + return; + } + for (key = font_keys; key - font_keys < MAX_KEY_CODE; key++) + if (str_prefix (t1_line_array + 1, key->t1name)) + break; + if (key - font_keys == MAX_KEY_CODE) + return; + key->valid = true; + p = t1_line_array + strlen (key->t1name) + 1; + skip (p, ' '); + if ((k = key - font_keys) == FONTNAME_CODE) { + if (*p != '/') { + remove_eol (p, t1_line_array); + pdftex_fail ("a name expected: `%s'", t1_line_array); + } + r = ++p; /* skip the slash */ + if (is_included (fm_cur)) { + /* save the fontname */ + strncpy (fontname_buf, p, FONTNAME_BUF_SIZE); + for (i=0; fontname_buf[i] != 10; i++); + fontname_buf[i]=0; + + if(is_subsetted (fm_cur)) { + if (fm_cur->encoding!=NULL && fm_cur->encoding->glyph_names!=NULL) + make_subset_tag (fm_cur, fm_cur->encoding->glyph_names, tex_font); + else + make_subset_tag (fm_cur, t1_builtin_glyph_names, tex_font); + + alloc_array (t1_line, (r-t1_line_array+6+1+strlen(fontname_buf)+1), T1_BUF_SIZE); + strncpy (r, fm_cur->subset_tag , 6); + *(r+6) = '-'; + strncpy (r+7, fontname_buf, strlen(fontname_buf)+1); + t1_line_ptr = eol (r); + } else { + /* for (q = p; *q != ' ' && *q != 10; *q++);*/ + /**q = 0;*/ + t1_line_ptr = eol (r); + } + } + return; + } + if ((k == STEMV_CODE || k == FONTBBOX1_CODE) + && (*p == '[' || *p == '{')) + p++; + if (k == FONTBBOX1_CODE) { + for (i = 0; i < 4; i++) { + key[i].value = t1_scan_num (p, &r); + p = r; + } + return; + } + key->value = t1_scan_num (p, 0); +} + +static void t1_scan_param (int tex_font,fm_entry *fm_cur) +{ + 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); + return; + } + t1_scan_keys (tex_font,fm_cur); +} + +static void copy_glyph_names (char **glyph_names, int a, int b) +{ + if (glyph_names[b] != notdef) { + free (glyph_names[b]); + glyph_names[b] = (char *) notdef; + } + if (glyph_names[a] != notdef) { + glyph_names[b] = xstrdup (glyph_names[a]); + } +} + +static void t1_builtin_enc (void) +{ + int i, a, b, c, counter = 0; + char *r, *p; + /* + * At this moment "/Encoding" is the prefix of t1_line_array + */ + if (t1_suffix ("def")) { /* predefined encoding */ + sscanf (t1_line_array + strlen ("/Encoding"), "%256s", t1_buf_array); + if (strcmp (t1_buf_array, "StandardEncoding") == 0) { + for (i = 0; i < 256; i++) + if (standard_glyph_names[i] == notdef) + t1_builtin_glyph_names[i] = (char *) notdef; + else + t1_builtin_glyph_names[i] = + xstrdup (standard_glyph_names[i]); + t1_encoding = ENC_STANDARD; + } else + pdftex_fail + ("cannot subset font (unknown predefined encoding `%s')", + t1_buf_array); + return; + } else + t1_encoding = ENC_BUILTIN; + /* + * 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 + */ + for (i = 0; i < 256; i++) + t1_builtin_glyph_names[i] = (char *) notdef; + 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) + t1_builtin_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%256s put", &i, t1_buf_array) == 2 && + *t1_buf_array == '/' && valid_code (i)) { + if (strcmp (t1_buf_array + 1, notdef) != 0) + t1_builtin_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 (t1_builtin_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 (t1_builtin_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; + /* + skip an unrecognizable word + */ + else { + while (*p != ' ' && *p != 10) + p++; + skip (p, ' '); + } + } + } +} + +static void t1_check_end (void) +{ + if (t1_eof ()) + return; + t1_getline (); + if (t1_prefix ("{restore}")) + t1_putline (); +} + +static boolean t1_open_fontfile (fm_entry *fm_cur,const char *open_name_prefix) +{ + ff_entry *ff; + ff = check_ff_exist (fm_cur); + if (ff->ff_path != NULL) + t1_file = xfopen (cur_file_name = ff->ff_path, FOPEN_RBIN_MODE); + else { + set_cur_file_name (fm_cur->ff_name); + pdftex_warn ("cannot open Type 1 font file for reading"); + return false; + } + t1_init_params (open_name_prefix); + fontfile_found = true; + return true; +} + +static void t1_scan_only (int tex_font, fm_entry *fm_cur) +{ + do { + t1_getline (); + t1_scan_param (tex_font, fm_cur); + } + while (t1_in_eexec == 0); + t1_start_eexec (fm_cur); + do { + t1_getline (); + t1_scan_param (tex_font, fm_cur); + } + while (!(t1_charstrings () || t1_subrs ())); +} + +static void t1_include (int tex_font, fm_entry *fm_cur) +{ + do { + t1_getline (); + t1_scan_param (tex_font, fm_cur); + t1_putline (); + } + while (t1_in_eexec == 0); + t1_start_eexec (fm_cur); + do { + t1_getline (); + t1_scan_param (tex_font, fm_cur); + t1_putline (); + } + while (!(t1_charstrings () || t1_subrs ())); + t1_cs = true; + do { + t1_getline (); + t1_putline (); + } + while (!t1_end_eexec ()); + t1_stop_eexec (fm_cur); + if (fixedcontent) { /* copy 512 zeros (not needed for PDF) */ + do { + t1_getline (); + t1_putline (); + } + while (!t1_cleartomark ()); + t1_check_end (); /* write "{restore}if" if found */ + } + get_length3 (); +} + +#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 () +{ + 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 = (char *) 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_warn("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_warn (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); +} + +static void cs_mark (const char *cs_name, int subr) +{ + byte *data; + int i, b, cs_len; + 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_warn (cs_name, subr, "command value out of range: %i", + (int) b); + goto cs_error; + } + cc = cc_tab + b; + if (!cc->valid) { + cs_warn (cs_name, subr, "command not valid: %i", (int) b); + goto cs_error; + } + if (cc->bottom) { + if (stack_ptr - cc_stack < cc->nargs) + cs_warn (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_warn (cs_name, subr, + "more arguments on stack (%i) than required (%i)", + (int) (stack_ptr - cc_stack), (int) cc->nargs); + } + switch (cc - cc_tab) { + case CS_CALLSUBR: + a1 = cc_get (-1); + cc_pop (1); + mark_subr (a1); + if (!subr_tab[a1].valid) { + cs_warn (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 (); + } + } + } + return; + cs_error: /* an error occured during parsing */ + cc_clear (); + ptr->valid = false; + ptr->used = false; +} + +static void t1_subset_ascii_part (int tex_font, fm_entry *fm_cur) +{ + int i, j; + t1_getline (); + while (!t1_prefix ("/Encoding")) { + t1_scan_param (tex_font, fm_cur); + t1_putline (); + t1_getline (); + } + t1_builtin_enc (); + if (is_reencoded (fm_cur)) + t1_glyph_names = external_enc (); + else + t1_glyph_names = t1_builtin_glyph_names; + /* + if (is_included (fm_cur) && is_subsetted (fm_cur)) { + make_subset_tag (fm_cur, t1_glyph_names, tex_font); + update_subset_tag (); + } + */ + if ((!is_subsetted (fm_cur)) && 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]); + } + } + /* We didn't mark anything for the Encoding array. */ + /* We add "dup 0 /.notdef put" for compatibility */ + /* with Acrobat 5.0. */ + if (j == 0) + t1_puts ("dup 0 /.notdef put\n"); + t1_puts ("readonly def\n"); + } + do { + t1_getline (); + t1_scan_param (tex_font, fm_cur); + if (!t1_prefix ("/UniqueID")) /* ignore UniqueID for subsetted fonts */ + t1_putline (); + } + while (t1_in_eexec == 0); +} + +#define t1_subr_flush() t1_flush_cs(true) +#define t1_cs_flush() t1_flush_cs(false) + +static void t1_flush_cs (boolean); + +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_mark_glyphs (int tex_font); + +static void t1_read_subrs (int tex_font, fm_entry *fm_cur) +{ + int i, s; + cs_entry *ptr; + t1_getline (); + while (!(t1_charstrings () || t1_subrs ())) { + t1_scan_param (tex_font, fm_cur); + 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); + subr_tab = (cs_entry *)malloc (subr_size*sizeof (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; + } +} + +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 (*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 unsused subr's */ + if (is_subr) { + cr = 4330; + cs_len = 0; + return_cs = xtalloc (t1_lenIV + 1, byte); + if (t1_lenIV > 0) { + for (cs_len = 0, r = return_cs; cs_len < t1_lenIV; cs_len++, r++) + *r = cencrypt (0x00, &cr); + *r = cencrypt (CS_RETURN, &cr); + } else { + *return_cs = CS_RETURN; + } + cs_len++; + } + + for (ptr = tab; ptr < end_tab; ptr++) { + if (ptr->used) { + if (is_subr) + sprintf (t1_line_array, "dup %i %u", (int) (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 %i %u%s ", (int) (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 (int tex_font) +{ + 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_subset_charstrings (int tex_font) +{ + cs_entry *ptr; + 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 (tex_font); + 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 (fm_entry *fm_cur) +{ + 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 (fm_cur); + 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 (); +} + +int t1_updatefm (int f, fm_entry *fm) +{ + char *s, *p; + read_encoding_only = true; + if (!t1_open_fontfile (fm,NULL)) { + return 0; + } + t1_scan_only (f, fm); + s = xstrdup(fontname_buf); + for (p=s; *p != ' ' && *p != 0; *p++); + *p=0; + fm->ps_name = s; + t1_close_font_file (""); + return 1; +} + + +void writet1 (int tex_font, fm_entry *fm_cur) +{ + read_encoding_only = false; + if (!is_included (fm_cur)) { /* scan parameters from font file */ + if (!t1_open_fontfile (fm_cur,"{")) + return; + t1_scan_only (tex_font, fm_cur); + t1_close_font_file ("}"); + return; + } + if (!is_subsetted (fm_cur)) { /* include entire font */ + if (!t1_open_fontfile (fm_cur,"<<")) + return; + t1_include (tex_font,fm_cur); + t1_close_font_file (">>"); + return; + } + /* partial downloading */ + if (!t1_open_fontfile (fm_cur,"<")) + return; + t1_subset_ascii_part (tex_font,fm_cur); + t1_start_eexec (fm_cur); + cc_init (); + cs_init (); + t1_read_subrs (tex_font, fm_cur); + t1_subset_charstrings (tex_font); + t1_subset_end (fm_cur); + t1_close_font_file (">"); +} + +void t1_free () +{ + xfree (t1_line_array); + xfree (t1_buf_array); +} |