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Diffstat (limited to 'Build/source/texk/web2c/pdftexdir/mapfile.c')
-rw-r--r--Build/source/texk/web2c/pdftexdir/mapfile.c1150
1 files changed, 1150 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/pdftexdir/mapfile.c b/Build/source/texk/web2c/pdftexdir/mapfile.c
new file mode 100644
index 00000000000..758290127ca
--- /dev/null
+++ b/Build/source/texk/web2c/pdftexdir/mapfile.c
@@ -0,0 +1,1150 @@
+/*
+Copyright (c) 1996-2005 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 pdfTeX; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+$Id: //depot/Build/source.development/TeX/texk/web2c/pdftexdir/mapfile.c#30 $
+
+source code indentation by "indent -kr -nut"
+*/
+
+#include <math.h>
+#include "ptexlib.h"
+#include <kpathsea/c-auto.h>
+#include <kpathsea/c-memstr.h>
+#include "avlstuff.h"
+
+static const char perforce_id[] =
+ "$Id: //depot/Build/source.development/TeX/texk/web2c/pdftexdir/mapfile.c#30 $";
+
+#define FM_BUF_SIZE 1024
+
+static FILE *fm_file;
+
+#define fm_open() \
+ open_input (&fm_file, kpse_fontmap_format, FOPEN_RBIN_MODE)
+#define fm_close() xfclose(fm_file, cur_file_name)
+#define fm_getchar() xgetc(fm_file)
+#define fm_eof() feof(fm_file)
+
+enum _mode { FM_DUPIGNORE, FM_REPLACE, FM_DELETE };
+enum _ltype { MAPFILE, MAPLINE };
+enum _tfmavail { TFM_UNCHECKED, TFM_FOUND, TFM_NOTFOUND };
+
+typedef struct mitem {
+ int mode; /* FM_DUPIGNORE or FM_REPLACE or FM_DELETE */
+ int type; /* map file or map line */
+ char *line; /* pointer to map file name or map line */
+ int lineno; /* line number in map file */
+ struct mitem *next; /* pointer to next item, or NULL */
+} mapitem;
+mapitem *miptr, *mapitems = NULL;
+
+fm_entry *fm_cur;
+static const char nontfm[] = "<nontfm>";
+static fm_entry *loaded_tfm_found;
+static fm_entry *avail_tfm_found;
+static fm_entry *non_tfm_found;
+static fm_entry *not_avail_tfm_found;
+
+#define read_field(r, q, buf) do { \
+ for (q = buf; *r != ' ' && *r != 10; *q++ = *r++); \
+ *q = 0; \
+ skip (r, ' '); \
+} while (0)
+
+#define set_field(F) do { \
+ if (q > buf) \
+ fm->F = xstrdup(buf); \
+ if (*r == 10) \
+ goto done; \
+} while (0)
+
+static fm_entry *new_fm_entry(void)
+{
+ fm_entry *fm;
+ fm = xtalloc(1, fm_entry);
+ fm->tfm_name = NULL;
+ fm->ps_name = NULL;
+ fm->flags = 0;
+ fm->ff_name = NULL;
+ fm->subset_tag = NULL;
+ fm->encoding = NULL;
+ fm->tfm_num = getnullfont();
+ fm->tfm_avail = TFM_UNCHECKED;
+ fm->type = 0;
+ fm->slant = 0;
+ fm->extend = 0;
+ fm->ff_objnum = 0;
+ fm->fn_objnum = 0;
+ fm->fd_objnum = 0;
+ fm->charset = NULL;
+ fm->all_glyphs = false;
+ fm->links = 0;
+ return fm;
+}
+
+static void delete_fm_entry(fm_entry * fm)
+{
+ xfree(fm->tfm_name);
+ xfree(fm->ps_name);
+ xfree(fm->ff_name);
+ xfree(fm->subset_tag);
+ xfree(fm->charset);
+ xfree(fm);
+}
+
+static ff_entry *new_ff_entry(void)
+{
+ ff_entry *ff;
+ ff = xtalloc(1, ff_entry);
+ ff->ff_name = NULL;
+ ff->ff_path = NULL;
+ return ff;
+}
+
+static void delete_ff_entry(ff_entry * ff)
+{
+ xfree(ff->ff_name);
+ xfree(ff->ff_path);
+ xfree(ff);
+}
+
+static fm_entry *dummy_fm_entry()
+{
+ static const fm_entry const_fm_entry;
+ return (fm_entry *) & const_fm_entry;
+}
+
+char *mk_base_tfm(char *tfmname, int *i)
+{
+ static char buf[SMALL_BUF_SIZE];
+ char *p = tfmname, *r = strend(p) - 1, *q = r;
+ while (q > p && isdigit(*q))
+ --q;
+ if (!(q > p) || q == r || (*q != '+' && *q != '-'))
+ return NULL;
+ check_buf(q - p + 1, SMALL_BUF_SIZE);
+ strncpy(buf, p, (unsigned) (q - p));
+ buf[q - p] = 0;
+ *i = atoi(q);
+ return buf;
+}
+
+static fmentryptr fmlookup(internalfontnumber);
+
+boolean hasfmentry(internalfontnumber f)
+{
+ if (pdffontmap[f] == NULL)
+ pdffontmap[f] = fmlookup(f);
+ assert(pdffontmap[f] != NULL);
+ return pdffontmap[f] != (fmentryptr) dummy_fm_entry();
+}
+
+/**********************************************************************/
+
+struct avl_table *tfm_tree = NULL;
+struct avl_table *ps_tree = NULL;
+struct avl_table *ff_tree = NULL;
+
+/* AVL sort fm_entry into tfm_tree by tfm_name */
+
+static int comp_fm_entry_tfm(const void *pa, const void *pb, void *p)
+{
+ return strcmp(((const fm_entry *) pa)->tfm_name,
+ ((const fm_entry *) pb)->tfm_name);
+}
+
+#define cmp_return(a, b) \
+ if (a > b) \
+ return 1; \
+ if (a < b) \
+ return -1
+
+/* AVL sort fm_entry into ps_tree by ps_name, slant, and extend */
+
+static int comp_fm_entry_ps(const void *pa, const void *pb, void *p)
+{
+ const fm_entry *p1 = (const fm_entry *) pa, *p2 =
+ (const fm_entry *) pb;
+ int i;
+ assert(p1->ps_name != NULL && p2->ps_name != NULL);
+ if ((i = strcmp(p1->ps_name, p2->ps_name)) != 0)
+ return i;
+ cmp_return(p1->slant, p2->slant);
+ cmp_return(p1->extend, p2->extend);
+ if (p1->tfm_name != NULL && p2->tfm_name != NULL &&
+ (i = strcmp(p1->tfm_name, p2->tfm_name)) != 0)
+ return i;
+ return 0;
+}
+
+/* AVL sort ff_entry into ff_tree by ff_name */
+
+static int comp_ff_entry(const void *pa, const void *pb, void *p)
+{
+ return strcmp(((const ff_entry *) pa)->ff_name,
+ ((const ff_entry *) pb)->ff_name);
+}
+
+static void create_avl_trees()
+{
+ if (tfm_tree == NULL) {
+ tfm_tree = avl_create(comp_fm_entry_tfm, NULL, &avl_xallocator);
+ assert(tfm_tree != NULL);
+ }
+ if (ps_tree == NULL) {
+ ps_tree = avl_create(comp_fm_entry_ps, NULL, &avl_xallocator);
+ assert(ps_tree != NULL);
+ }
+ if (ff_tree == NULL) {
+ ff_tree = avl_create(comp_ff_entry, NULL, &avl_xallocator);
+ assert(ff_tree != NULL);
+ }
+}
+
+/*
+The function avl_do_entry() is not completely symmetrical with regards
+to tfm_name and ps_name handling, e. g. a duplicate tfm_name gives a
+"goto exit", and no ps_name link is tried. This is to keep it compatible
+with the original version.
+*/
+
+static int avl_do_entry(fm_entry * fp, int mode)
+{
+ fm_entry *p, *p2;
+ void *a;
+ void **aa;
+ struct avl_traverser trav;
+
+ /* handle tfm_name link */
+
+ if (strcmp(fp->tfm_name, nontfm) != 0) {
+ p = (fm_entry *) avl_find(tfm_tree, fp);
+ if (p != NULL) {
+ if (mode == FM_DUPIGNORE) {
+ pdftex_warn
+ ("fontmap entry for `%s' already exists, duplicates ignored",
+ fp->tfm_name);
+ goto exit;
+ } else { /* mode == FM_REPLACE / FM_DELETE */
+ if (fontused[p->tfm_num]) {
+ pdftex_warn
+ ("fontmap entry for `%s' has been used, replace/delete not allowed",
+ fp->tfm_name);
+ goto exit;
+ }
+ a = avl_delete(tfm_tree, p);
+ assert(a != NULL);
+ unset_tfmlink(p);
+ if (!has_pslink(p))
+ delete_fm_entry(p);
+ }
+ }
+ if (mode != FM_DELETE) {
+ aa = avl_probe(tfm_tree, fp);
+ assert(aa != NULL);
+ set_tfmlink(fp);
+ }
+ }
+
+ /* handle ps_name link */
+
+ if (fp->ps_name != NULL) {
+ assert(fp->tfm_name != NULL);
+ p = (fm_entry *) avl_find(ps_tree, fp);
+ if (p != NULL) {
+ if (mode == FM_DUPIGNORE) {
+ pdftex_warn
+ ("ps_name entry for `%s' already exists, duplicates ignored",
+ fp->ps_name);
+ goto exit;
+ } else { /* mode == FM_REPLACE / FM_DELETE */
+ if (fontused[p->tfm_num]) {
+ /* REPLACE/DELETE not allowed */
+ pdftex_warn
+ ("fontmap entry for `%s' has been used, replace/delete not allowed",
+ p->tfm_name);
+ goto exit;
+ }
+ a = avl_delete(ps_tree, p);
+ assert(a != NULL);
+ unset_pslink(p);
+ if (!has_tfmlink(p))
+ delete_fm_entry(p);
+ }
+ }
+ if (mode != FM_DELETE) {
+ aa = avl_probe(ps_tree, fp);
+ assert(aa != NULL);
+ set_pslink(fp);
+ }
+ }
+ exit:
+ if (!has_tfmlink(fp) && !has_pslink(fp)) /* e. g. after FM_DELETE */
+ return 1; /* deallocation of fm_entry structure required */
+ else
+ return 0;
+}
+
+/**********************************************************************/
+/* consistency check for map entry, with warn flag */
+
+int check_fm_entry(fm_entry * fm, boolean warn)
+{
+ int a = 0;
+ assert(fm != NULL);
+ if (fm->ps_name != NULL) {
+ if (is_basefont(fm)) {
+ if (is_fontfile(fm) && !is_included(fm)) {
+ if (warn)
+ pdftex_warn
+ ("invalid entry for `%s': font file must be included or omitted for base fonts",
+ fm->tfm_name);
+ a += 1;
+ }
+ } else { /* not a base font */
+ /* if no font file given, drop this entry */
+ if (!is_fontfile(fm)) {
+ if (warn)
+ pdftex_warn
+ ("invalid entry for `%s': font file missing",
+ fm->tfm_name);
+ a += 2;
+ }
+ }
+ }
+ if (is_truetype(fm) && is_reencoded(fm) && !is_subsetted(fm)) {
+ if (warn)
+ pdftex_warn
+ ("invalid entry for `%s': only subsetted TrueType font can be reencoded",
+ fm->tfm_name);
+ a += 4;
+ }
+ if ((fm->slant != 0 || fm->extend != 0) &&
+ (!is_included(fm) || is_truetype(fm))) {
+ if (warn)
+ pdftex_warn
+ ("invalid entry for `%s': SlantFont/ExtendFont can be used only with embedded T1 fonts",
+ fm->tfm_name);
+ a += 8;
+ }
+ if (abs(fm->slant) > 1000) {
+ if (warn)
+ pdftex_warn
+ ("invalid entry for `%s': too big value of SlantFont (%g)",
+ fm->tfm_name, fm->slant / 1000.0);
+ a += 16;
+ }
+ if (abs(fm->extend) > 2000) {
+ if (warn)
+ pdftex_warn
+ ("invalid entry for `%s': too big value of ExtendFont (%g)",
+ fm->tfm_name, fm->extend / 1000.0);
+ a += 32;
+ }
+ return a;
+}
+
+/**********************************************************************/
+/* returns true if s is one of the 14 std. font names; speed-trimmed. */
+
+boolean check_basefont(char *s)
+{
+ static const char *basefont_names[] = {
+ "Courier", /* 0:7 */
+ "Courier-Bold", /* 1:12 */
+ "Courier-Oblique", /* 2:15 */
+ "Courier-BoldOblique", /* 3:19 */
+ "Helvetica", /* 4:9 */
+ "Helvetica-Bold", /* 5:14 */
+ "Helvetica-Oblique", /* 6:17 */
+ "Helvetica-BoldOblique", /* 7:21 */
+ "Symbol", /* 8:6 */
+ "Times-Roman", /* 9:11 */
+ "Times-Bold", /* 10:10 */
+ "Times-Italic", /* 11:12 */
+ "Times-BoldItalic", /* 12:16 */
+ "ZapfDingbats" /* 13:12 */
+ };
+ static const int index[] =
+ { -1, -1, -1, -1, -1, -1, 8, 0, -1, 4, 10, 9, -1, -1, 5, 2, 12, 6,
+ -1, 3, -1, 7
+ };
+ int n = strlen(s), k = -1;
+ if (n > 21)
+ return false;
+ if (n == 12) { /* three names have length 12 */
+ switch (*s) {
+ case 'C':
+ k = 1; /* Courier-Bold */
+ break;
+ case 'T':
+ k = 11; /* Times-Italic */
+ break;
+ case 'Z':
+ k = 13; /* ZapfDingbats */
+ break;
+ default:
+ return false;
+ }
+ } else
+ k = index[n];
+ if (k > -1 && strcmp(basefont_names[k], s) == 0)
+ return true;
+ return false;
+};
+
+/**********************************************************************/
+
+static void fm_scan_line(mapitem * mitem)
+{
+ int a, b, c, j, u = 0, v = 0;
+ float d;
+ char fm_line[FM_BUF_SIZE], buf[FM_BUF_SIZE];
+ fm_entry *fm;
+ char *p, *q, *r, *s;
+ p = fm_line;
+ switch (mitem->type) {
+ case MAPFILE:
+ do {
+ c = fm_getchar();
+ append_char_to_buf(c, p, fm_line, FM_BUF_SIZE);
+ }
+ while (c != 10);
+ break;
+ case MAPLINE:
+ s = mitem->line;
+ while ((c = *s++) != 0)
+ append_char_to_buf(c, p, fm_line, FM_BUF_SIZE);
+ break;
+ default:
+ assert(0);
+ }
+ append_eol(p, fm_line, FM_BUF_SIZE);
+ if (is_cfg_comment(*fm_line))
+ return;
+ r = fm_line;
+ read_field(r, q, buf);
+ fm = new_fm_entry();
+ set_field(tfm_name);
+ p = r;
+ read_field(r, q, buf);
+ if (*buf != '<' && *buf != '"')
+ set_field(ps_name);
+ else
+ r = p; /* unget the field */
+ if (isdigit(*r)) { /* font flags given */
+ fm->flags = atoi(r);
+ while (isdigit(*r))
+ r++;
+ } else
+ fm->flags = 4; /* treat as Symbol font */
+ while (1) { /* loop through "specials", encoding, font file */
+ skip(r, ' ');
+ switch (*r) {
+ case 10:
+ goto done;
+ case '"': /* opening quote */
+ r++;
+ u = v = 0;
+ do {
+ skip(r, ' ');
+ if (sscanf(r, "%f %n", &d, &j) > 0) {
+ s = r + j; /* jump behind number, eat also blanks, if any */
+ if (*(s - 1) == 'E' || *(s - 1) == 'e')
+ s--; /* e. g. 0.5ExtendFont: %f = 0.5E */
+ if (strncmp(s, "SlantFont", strlen("SlantFont")) == 0) {
+ d *= 1000.0; /* correct rounding also for neg. numbers */
+ fm->slant = (integer) (d > 0 ? d + 0.5 : d - 0.5);
+ r = s + strlen("SlantFont");
+ } else
+ if (strncmp(s, "ExtendFont", strlen("ExtendFont"))
+ == 0) {
+ d *= 1000.0;
+ fm->extend = (integer) (d > 0 ? d + 0.5 : d - 0.5);
+ if (fm->extend == 1000)
+ fm->extend = 0;
+ r = s + strlen("ExtendFont");
+ } else { /* unknown name */
+ for (r = s; *r != ' ' && *r != '"' && *r != 10; r++); /* jump over name */
+ c = *r; /* remember char for temporary end of string */
+ *r = '\0';
+ pdftex_warn
+ ("invalid entry for `%s': unknown name `%s' ignored",
+ fm->tfm_name, s);
+ *r = c;
+ }
+ } else
+ for (; *r != ' ' && *r != '"' && *r != 10; r++);
+ }
+ while (*r == ' ');
+ if (*r == '"') /* closing quote */
+ r++;
+ else {
+ pdftex_warn
+ ("invalid entry for `%s': closing quote missing",
+ fm->tfm_name);
+ goto bad_line;
+ }
+ break;
+ default: /* encoding or font file specification */
+ a = b = 0;
+ if (*r == '<') {
+ a = *r++;
+ if (*r == '<' || *r == '[')
+ b = *r++;
+ }
+ read_field(r, q, buf);
+ /* encoding, formats: '8r.enc' or '<8r.enc' or '<[8r.enc' */
+ if (strlen(buf) > 4
+ && strcasecmp(strend(buf) - 4, ".enc") == 0) {
+ fm->encoding = add_enc(buf);
+ u = v = 0; /* u, v used if intervening blank: "<< foo" */
+ } else if (strlen(buf) > 0) { /* file name given */
+ /* font file, formats:
+ * subsetting: '<cmr10.pfa'
+ * no subsetting: '<<cmr10.pfa'
+ * no embedding: 'cmr10.pfa'
+ */
+ if (a == '<' || u == '<') {
+ set_included(fm);
+ if ((a == '<' && b == 0) || (a == 0 && v == 0))
+ set_subsetted(fm);
+ /* otherwise b == '<' (or '[') => no subsetting */
+ }
+ set_field(ff_name);
+ u = v = 0;
+ } else {
+ u = a;
+ v = b;
+ }
+ }
+ }
+ done:
+ if (fm->ps_name != NULL && check_basefont(fm->ps_name))
+ set_basefont(fm);
+ if (is_fontfile(fm)
+ && strcasecmp(strend(fm_fontfile(fm)) - 4, ".ttf") == 0)
+ set_truetype(fm);
+ if (check_fm_entry(fm, true) != 0)
+ goto bad_line;
+ /*
+ Until here the map line has been completely scanned without errors;
+ fm points to a valid, freshly filled-out fm_entry structure.
+ Now follows the actual work of registering/deleting.
+ */
+ if (avl_do_entry(fm, mitem->mode) == 0) /* if success */
+ return;
+ bad_line:
+ delete_fm_entry(fm);
+}
+
+/**********************************************************************/
+
+void fm_read_info()
+{
+ mapitem *tmp;
+ create_avl_trees();
+ while (mapitems != NULL) {
+ assert(mapitems->line != NULL);
+ mapitems->lineno = 1;
+ switch (mapitems->type) {
+ case MAPFILE:
+ set_cur_file_name(mapitems->line);
+ if (!fm_open()) {
+ pdftex_warn("cannot open font map file");
+ } else {
+ cur_file_name = (char *) nameoffile + 1;
+ tex_printf("{%s", cur_file_name);
+ while (!fm_eof()) {
+ fm_scan_line(mapitems);
+ mapitems->lineno++;
+ }
+ fm_close();
+ tex_printf("}");
+ fm_file = NULL;
+ }
+ break;
+ case MAPLINE:
+ cur_file_name = NULL; /* makes pdftex_warn() shorter */
+ fm_scan_line(mapitems);
+ break;
+ default:
+ assert(0);
+ }
+ tmp = mapitems;
+ mapitems = mapitems->next;
+ xfree(tmp->line);
+ xfree(tmp);
+ }
+ cur_file_name = NULL;
+ return;
+}
+
+/**********************************************************************/
+
+/*
+char *mk_exname(char *basename, int e)
+{
+ static char buf[SMALL_BUF_SIZE];
+ char *p = basename, *r;
+ if ((r = strrchr(p, '.')) == NULL)
+ r = strend(p);
+ check_buf(r - p + strlen(r) + 10, SMALL_BUF_SIZE);
+ strncpy(buf, p, (unsigned) (r - p));
+ sprintf(buf + (r - p), "%+i", e);
+ strcat(buf, r);
+ return buf;
+}
+*/
+
+internalfontnumber tfmoffm(fmentryptr fm_pt)
+{
+ return ((fm_entry *) fm_pt)->tfm_num;
+}
+
+static fm_entry *mk_ex_fm(internalfontnumber f, fm_entry * basefm, int ex)
+{
+ fm_entry *fm;
+ integer e = basefm->extend;
+ if (e == 0)
+ e = 1000;
+ fm = new_fm_entry();
+ fm->flags = basefm->flags;
+ fm->encoding = basefm->encoding;
+ fm->type = basefm->type;
+ fm->slant = basefm->slant;
+ fm->extend = roundxnoverd(e, 1000 + ex, 1000); /* modify ExtentFont to simulate expansion */
+ if (fm->extend == 1000)
+ fm->extend = 0;
+ fm->tfm_name = xstrdup(makecstring(fontname[f]));
+ if (basefm->ps_name != NULL)
+ fm->ps_name = xstrdup(basefm->ps_name);
+ fm->ff_name = xstrdup(basefm->ff_name);
+ fm->ff_objnum = pdfnewobjnum();
+ fm->tfm_num = f;
+ fm->tfm_avail = TFM_FOUND;
+ assert(strcmp(fm->tfm_name, nontfm) != 0);
+ return fm;
+}
+
+static void init_fm(fm_entry * fm, internalfontnumber f)
+{
+ if (fm->fd_objnum == 0 && !no_font_desc(fm))
+ fm->fd_objnum = pdfnewobjnum();
+ if (fm->ff_objnum == 0 && is_included(fm))
+ fm->ff_objnum = pdfnewobjnum();
+ if (fm->tfm_num == getnullfont()) {
+ fm->tfm_num = f;
+ fm->tfm_avail = TFM_FOUND;
+ }
+}
+
+static fmentryptr fmlookup(internalfontnumber f)
+{
+ char *tfm, *p;
+ fm_entry *fm, *exfm;
+ fm_entry tmp;
+ int ai, e;
+ if (tfm_tree == NULL || mapitems != NULL)
+ fm_read_info();
+ tfm = makecstring(fontname[f]);
+ assert(strcmp(tfm, nontfm) != 0);
+
+ /* Look up for full <tfmname>[+-]<expand> */
+ tmp.tfm_name = tfm;
+ fm = (fm_entry *) avl_find(tfm_tree, &tmp);
+ if (fm != NULL) {
+ init_fm(fm, f);
+ return (fmentryptr) fm;
+ }
+ tfm = mk_base_tfm(makecstring(fontname[f]), &e);
+ if (tfm == NULL) /* not an expanded font, nothing to do */
+ return (fmentryptr) dummy_fm_entry();
+
+ tmp.tfm_name = tfm;
+ fm = (fm_entry *) avl_find(tfm_tree, &tmp);
+ if (fm != NULL) { /* found an entry with the base tfm name, e.g. cmr10 */
+ if (!is_t1fontfile(fm) || !is_included(fm)) {
+ pdftex_warn
+ ("font %s cannot be expanded (not an included Type1 font)",
+ tfm);
+ return (fmentryptr) dummy_fm_entry();
+ }
+ exfm = mk_ex_fm(f, fm, e); /* copies all fields from fm except tfm name */
+ init_fm(exfm, f);
+ ai = avl_do_entry(exfm, FM_DUPIGNORE);
+ assert(ai == 0);
+ return (fmentryptr) exfm;
+ }
+ return (fmentryptr) dummy_fm_entry();
+}
+
+/*
+ Early check whether a font file exists. Used e. g. for replacing fonts
+ of embedded PDF files: Without font file, the font within the embedded
+ PDF-file is used. Search tree ff_tree is used in 1st instance, as it
+ may be faster than the kpse_find_file(), and kpse_find_file() is called
+ only once per font file name + expansion parameter. This might help
+ keeping speed, if many PDF pages with same fonts are to be embedded.
+
+ The ff_tree contains only font files, which are actually needed,
+ so this tree typically is much smaller than the tfm_tree or ps_tree.
+*/
+
+ff_entry *check_ff_exist(fm_entry * fm)
+{
+ ff_entry *ff;
+ ff_entry tmp;
+ char *ex_ffname;
+ void **aa;
+
+ assert(fm->ff_name != NULL);
+ tmp.ff_name = fm->ff_name;
+ ff = (ff_entry *) avl_find(ff_tree, &tmp);
+ if (ff == NULL) { /* not yet in database */
+ ff = new_ff_entry();
+ ff->ff_name = xstrdup(fm->ff_name);
+ if (is_truetype(fm))
+ ff->ff_path =
+ kpse_find_file(fm->ff_name, kpse_truetype_format, 0);
+ else
+ ff->ff_path =
+ kpse_find_file(fm->ff_name, kpse_type1_format, 0);
+ aa = avl_probe(ff_tree, ff);
+ assert(aa != NULL);
+ }
+ return ff;
+}
+
+/**********************************************************************/
+
+static boolean used_tfm(fm_entry * p)
+{
+ internalfontnumber f;
+ strnumber s;
+ ff_entry *ff;
+
+ /* check if the font file is not a TrueType font */
+ /* font replacement makes sense only for included Type1 files */
+ if (is_truetype(p) || !is_included(p))
+ return false;
+
+ /* check if the font file is available */
+ ff = check_ff_exist(p);
+ if (ff->ff_path == NULL)
+ return false;
+
+ /* check whether this font has been used */
+ if (fontused[p->tfm_num])
+ return true;
+ assert(p->tfm_name != NULL);
+
+ /* check whether we didn't find a loaded font yet,
+ * and this font has been loaded */
+ if (loaded_tfm_found == NULL && strcmp(p->tfm_name, nontfm) != 0) {
+ s = maketexstring(p->tfm_name);
+ if ((f = tfmlookup(s, 0)) != getnullfont()) {
+ loaded_tfm_found = p;
+ if (pdffontmap[f] == NULL)
+ pdffontmap[f] = (fmentryptr) p;
+ if (p->tfm_num == getnullfont())
+ p->tfm_num = f;
+ assert(p->tfm_num == f);
+ /* don't call flushstr() here as it has been called by tfmlookup() */
+ } else
+ flushstr(s);
+ }
+
+ /* check whether we didn't find either a loaded or a loadable font yet,
+ * and this font is loadable */
+ if (avail_tfm_found == NULL && loaded_tfm_found == NULL &&
+ strcmp(p->tfm_name, nontfm) != 0) {
+ if (p->tfm_avail == TFM_UNCHECKED) {
+ if (kpse_find_file(p->tfm_name, kpse_tfm_format, 0) != NULL) {
+ avail_tfm_found = p;
+ p->tfm_avail = TFM_FOUND;
+ } else {
+ p->tfm_avail = TFM_NOTFOUND;
+ if (not_avail_tfm_found == NULL)
+ not_avail_tfm_found = p;
+ }
+ }
+ }
+
+ /* check whether the current entry is a <nontfm> entry */
+ if (non_tfm_found == NULL && strcmp(p->tfm_name, nontfm) == 0)
+ non_tfm_found = p;
+
+ return false;
+}
+
+/* lookup_ps_name looks for an entry with a given ps name + slant + extend;
+ * return NULL if not found.
+ *
+ * As there may exist several such entries, we need to select the `right'
+ * one. We do so by checking all such entries and return the first one that
+ * fulfils the following criteria (in descending priority):
+ *
+ * - the tfm has been used (some char from this font has been typeset)
+ * - the tfm has been loaded (but not used yet)
+ * - the tfm can be loaded (but not loaded yet)
+ * - the tfm is present in map files, but cannot be loaded. In this case a
+ * dummy tfm can be loaded instead, and a warning should be written out
+ */
+
+static fm_entry *lookup_ps_name(fm_entry * fm)
+{
+ fm_entry *p, *p2;
+ struct avl_traverser t, t2;
+ strnumber s;
+ int a;
+
+ loaded_tfm_found = NULL;
+ avail_tfm_found = NULL;
+ non_tfm_found = NULL;
+ not_avail_tfm_found = NULL;
+
+ assert(fm->tfm_name == NULL);
+ p = (fm_entry *) avl_t_find(&t, ps_tree, fm);
+ if (p == NULL)
+ return NULL;
+ t2 = t;
+ p2 = avl_t_prev(&t2);
+
+ /* search forward */
+ do {
+ if (used_tfm(p))
+ return p;
+ p = avl_t_next(&t);
+ }
+ while (p != NULL && comp_fm_entry_ps(fm, p, NULL) == 0);
+
+ /* search backward */
+ while (p2 != NULL && comp_fm_entry_ps(fm, p2, NULL) == 0) {
+ if (used_tfm(p2))
+ return p2;
+ p2 = avl_t_prev(&t2);
+ }
+
+ if (loaded_tfm_found != NULL)
+ p = loaded_tfm_found;
+ else if (avail_tfm_found != NULL) {
+ p = avail_tfm_found;
+ p->tfm_num = readfontinfo(getnullcs(), maketexstring(p->tfm_name),
+ getnullstr(), -1000);
+ p->tfm_avail = TFM_FOUND;
+ } else if (non_tfm_found != NULL) {
+ p = non_tfm_found;
+ p->tfm_num = newdummyfont();
+ p->tfm_avail = TFM_FOUND;
+ } else if (not_avail_tfm_found != NULL) {
+ p = not_avail_tfm_found;
+ pdftex_warn("`%s' not loadable, use a dummy tfm instead",
+ p->tfm_name);
+ p2 = new_fm_entry();
+ p2->flags = p->flags;
+ p2->encoding = p->encoding;
+ p2->type = p->type;
+ p2->slant = p->slant;
+ p2->extend = p->extend;
+ p2->tfm_name = xstrdup(nontfm);
+ p2->ps_name = xstrdup(p->ps_name);
+ if (p->ff_name != NULL)
+ p2->ff_name = xstrdup(p->ff_name);
+ p2->tfm_num = newdummyfont();
+ p2->tfm_avail = TFM_FOUND;
+ a = avl_do_entry(p2, FM_DUPIGNORE);
+ assert(a == 0);
+ p = p2;
+ } else
+ return NULL;
+ assert(p->tfm_num != getnullfont());
+ return p;
+}
+
+/* Lookup fontmap for /BaseFont entries of embedded PDF-files;
+ * return dummy_fm_entry() if not found */
+
+fm_entry *lookup_fontmap(char *bname)
+{
+ fm_entry *fm, *fmx;
+ fm_entry tmp, tmpx;
+ ff_entry *ff;
+ char buf[SMALL_BUF_SIZE];
+ char *a, *b, *c, *d, *e, *s;
+ strnumber str;
+ int i, sl, ex, ai;
+ if (tfm_tree == NULL || mapitems != NULL)
+ fm_read_info();
+ if (bname == NULL)
+ return NULL;
+ if (strlen(bname) >= SMALL_BUF_SIZE)
+ pdftex_fail("Font name too long: `%s'", bname);
+ strcpy(buf, bname); /* keep bname untouched for later */
+ s = buf;
+ if (strlen(buf) > 7) { /* check for subsetted name tag */
+ for (i = 0; i < 6; i++, s++)
+ if (*s < 'A' || *s > 'Z')
+ break;
+ if (i == 6 && *s == '+')
+ s++; /* if name tag found, skip behind it */
+ else
+ s = buf;
+ }
+
+ /*
+ Scan -Slant_<slant> and -Extend_<extend> font name extensions;
+ three valid formats:
+ <fontname>-Slant_<slant>
+ <fontname>-Slant_<slant>-Extend_<extend>
+ <fontname>-Extend_<extend>
+ Slant entry must come _before_ Extend entry
+ */
+
+ tmp.slant = 0;
+ tmp.extend = 0;
+ if ((a = strstr(s, "-Slant_")) != NULL) {
+ b = a + strlen("-Slant_");
+ sl = (int) strtol(b, &e, 10);
+ if ((e != b) && (e == strend(b))) {
+ tmp.slant = sl;
+ *a = 0; /* bname string ends before "-Slant_" */
+ } else {
+ if (e != b) { /* only if <slant> is valid number */
+ if ((c = strstr(e, "-Extend_")) != NULL) {
+ d = c + strlen("-Extend_");
+ ex = (int) strtol(d, &e, 10);
+ if ((e != d) && (e == strend(d))) {
+ tmp.slant = sl;
+ tmp.extend = ex;
+ *a = 0; /* bname string ends before "-Slant_" */
+ }
+ }
+ }
+ }
+ } else {
+ if ((a = strstr(s, "-Extend_")) != NULL) {
+ b = a + strlen("-Extend_");
+ ex = (int) strtol(b, &e, 10);
+ if ((e != b) && (e == strend(b))) {
+ tmp.extend = ex;
+ *a = 0; /* bname string ends before "-Extend_" */
+ }
+ }
+ }
+ tmp.ps_name = s;
+ tmp.tfm_name = NULL;
+ fm = lookup_ps_name(&tmp);
+ if (fm != NULL) {
+ if (!(is_type1(fm) && is_included(fm))) {
+ pdftex_warn
+ ("PS name '%s' is found but ignored (not an included Type1 font)",
+ tmp.ps_name);
+ return NULL;
+ }
+ i = fm->tfm_num;
+ assert(i != getnullfont());
+ if (pdffontmap[i] == NULL)
+ pdffontmap[i] = (fmentryptr) fm;
+ if (fm->ff_objnum == 0 && is_included(fm))
+ fm->ff_objnum = pdfnewobjnum();
+ if (!fontused[i])
+ pdfinitfont(i);
+ return fm;
+ }
+/*
+ The following code snipplet handles fonts with "Slant" and "Extend"
+ name extensions in embedded PDF files, which don't yet have an
+ fm_entry. If such a font is found (e. g. CMR10-Extend_1020), and no
+ fm_entry for this is found in the ps_tree (e. g. ps_name = "CMR10",
+ extend = 1020), and if an unextended base font (e. g. CMR10) is found,
+ a new <nontfm> fm_entry is created and put into the ps_tree. Then
+ the lookup_fontmap() function is (recursively) called again, which
+ then should find the new fm_entry. The same can be done manually by
+ a map entry e. g.:
+
+ \pdfmapline{+<nontfm> CMR10 "1.02 ExtendFont" <cmr10.pfb}
+
+ This would also match the embedded font CMR10-Extend_1020, and replace
+ it by an extended copy of cmr10.pfb. -- But not by an expanded version;
+ no MM files (e.g. cmr10+20.pfb) would be used.
+*/
+
+ tmpx.ps_name = s;
+ tmpx.tfm_name = NULL;
+ tmpx.slant = 0;
+ tmpx.extend = 0;
+/* fm = (fm_entry *) avl_find(ps_tree, &tmpx); */
+ fm = lookup_ps_name(&tmpx);
+ if (fm != NULL) {
+ if (is_truetype(fm) || !is_included(fm))
+ return NULL;
+ ff = check_ff_exist(fm);
+ if (ff->ff_path == NULL)
+ return NULL;
+ fmx = new_fm_entry();
+ fmx->flags = fm->flags;
+ fmx->encoding = fm->encoding;
+ fmx->type = fm->type;
+ fmx->slant = tmp.slant;
+ fmx->extend = tmp.extend;
+ fmx->tfm_name = xstrdup(nontfm);
+ fmx->ps_name = xstrdup(s);
+ fmx->ff_name = xstrdup(fm->ff_name);
+ ai = avl_do_entry(fmx, FM_DUPIGNORE);
+ assert(ai == 0);
+ fm = lookup_fontmap(bname); /* new try */
+ assert(fm != NULL);
+ return fm;
+ }
+ return NULL;
+}
+
+/**********************************************************************/
+/*
+Add map file name or map line contents to the linked list "mapitems".
+Items not beginning with [+-=] flush list with pending items. Leading
+blanks and blanks immediately following [+-=] are ignored.
+*/
+
+char *add_map_item(char *s, int type)
+{
+ char *p;
+ int l; /* length of map item (without [+-=]) */
+ mapitem *tmp;
+ int mode;
+ for (; *s == ' '; s++); /* ignore leading blanks */
+ switch (*s) {
+ case '+': /* +mapfile.map, +mapline */
+ mode = FM_DUPIGNORE; /* insert entry, if it is not duplicate */
+ s++;
+ break;
+ case '=': /* =mapfile.map, =mapline */
+ mode = FM_REPLACE; /* try to replace earlier entry */
+ s++;
+ break;
+ case '-': /* -mapfile.map, -mapline */
+ mode = FM_DELETE; /* try to delete entry */
+ s++;
+ break;
+ default:
+ mode = FM_DUPIGNORE; /* also flush pending list */
+ while (mapitems != NULL) {
+ tmp = mapitems;
+ mapitems = mapitems->next;
+ xfree(tmp->line);
+ xfree(tmp);
+ }
+ }
+ for (; *s == ' '; s++); /* ignore blanks after [+-=] */
+ p = s; /* map item starts here */
+ switch (type) { /* find end of map item */
+ case MAPFILE:
+ for (; *p != 0 && *p != ' ' && *p != 10; p++);
+ break;
+ case MAPLINE: /* blanks allowed */
+ for (; *p != 0 && *p != 10; p++);
+ break;
+ default:
+ assert(0);
+ }
+ l = p - s;
+ if (l > 0) { /* only if real item to add */
+ tmp = xtalloc(1, mapitem);
+ if (mapitems == NULL)
+ mapitems = tmp; /* start new list */
+ else
+ miptr->next = tmp;
+ miptr = tmp;
+ miptr->mode = mode;
+ miptr->type = type;
+ miptr->line = xtalloc(l + 1, char);
+ *(miptr->line) = 0;
+ strncat(miptr->line, s, l);
+ miptr->next = NULL;
+ }
+ return p;
+}
+
+void pdfmapfile(integer t)
+{
+ add_map_item(makecstring(tokenstostring(t)), MAPFILE);
+ flushstr(lasttokensstring);
+}
+
+void pdfmapline(integer t)
+{
+ add_map_item(makecstring(tokenstostring(t)), MAPLINE);
+ flushstr(lasttokensstring);
+}
+
+void pdfinitmapfile(string map_name)
+{
+ if (mapitems == NULL) {
+ mapitems = xtalloc(1, mapitem);
+ miptr = mapitems;
+ miptr->mode = FM_DUPIGNORE;
+ miptr->type = MAPFILE;
+ miptr->line = xstrdup(map_name);
+ miptr->next = NULL;
+ }
+}
+
+/**********************************************************************/
+/* cleaning up... */
+
+static void destroy_fm_entry_tfm(void *pa, void *pb)
+{
+ fm_entry *fm;
+ fm = (fm_entry *) pa;
+ if (!has_pslink(fm))
+ delete_fm_entry(fm);
+ else
+ unset_tfmlink(fm);
+}
+
+static void destroy_fm_entry_ps(void *pa, void *pb)
+{
+ fm_entry *fm;
+ fm = (fm_entry *) pa;
+ if (!has_tfmlink(fm))
+ delete_fm_entry(fm);
+ else
+ unset_pslink(fm);
+}
+
+static void destroy_ff_entry(void *pa, void *pb)
+{
+ ff_entry *ff;
+ ff = (ff_entry *) pa;
+ delete_ff_entry(ff);
+}
+
+void fm_free(void)
+{
+ if (tfm_tree != NULL)
+ avl_destroy(tfm_tree, destroy_fm_entry_tfm);
+ if (ps_tree != NULL)
+ avl_destroy(ps_tree, destroy_fm_entry_ps);
+ if (ff_tree != NULL)
+ avl_destroy(ff_tree, destroy_ff_entry);
+}
+
+/**********************************************************************/
+/* end of mapfile.c */