diff options
author | Taco Hoekwater <taco@elvenkind.com> | 2006-11-20 14:43:48 +0000 |
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committer | Taco Hoekwater <taco@elvenkind.com> | 2006-11-20 14:43:48 +0000 |
commit | 5952e40b396499c0cd62bdbcf1853538873b76c1 (patch) | |
tree | 968b37e966ba1825e2de091a071774af1a7ffa9b /Build/source/texk/web2c/mpdir/mapfile.c | |
parent | 9fcf4d90b8b3a11712287d4ddf3fd47614a7ea68 (diff) |
Metapost 0.99 sources, except dmp
git-svn-id: svn://tug.org/texlive/trunk@2470 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/mpdir/mapfile.c')
-rw-r--r-- | Build/source/texk/web2c/mpdir/mapfile.c | 993 |
1 files changed, 993 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/mpdir/mapfile.c b/Build/source/texk/web2c/mpdir/mapfile.c new file mode 100644 index 00000000000..25d5818f5c0 --- /dev/null +++ b/Build/source/texk/web2c/mpdir/mapfile.c @@ -0,0 +1,993 @@ +/* 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: mapfile.c,v 1.20 2005/10/16 17:41:51 hahe Exp hahe $ + +*/ + +#include <math.h> +#include "mplib.h" +#include <kpathsea/c-auto.h> +#include <kpathsea/c-memstr.h> +#include <string.h> + +static const char perforce_id[] = + "$Id: mapfile.c,v 1.20 2005/10/16 17:41:51 hahe Exp hahe $"; + +#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 */ +} mapitem; +mapitem *mitem = 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 { \ + q = buf; \ + while (*r != ' ' && *r != '\0') \ + *q++ = *r++; \ + *q = '\0'; \ + skip (r, ' '); \ +} while (0) + +#define set_field(F) do { \ + if (q > buf) \ + fm->F = xstrdup(buf); \ + if (*r == '\0') \ + goto done; \ +} while (0) + +#define cmp_return(a, b) \ + if (a > b) \ + return 1; \ + if (a < b) \ + return -1 + +fm_entry *new_fm_entry (void) +{ + fm_entry *fm; + fm = xtalloc (1, fm_entry); + fm->tfm_name = NULL; + fm->ps_name = NULL; + fm->flags = 4; + 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; + fm->pid = -1; + fm->eid = -1; + fm->subfont = NULL; + return fm; +} + +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, (size_t) (q - p)); + buf[q - p] = '\0'; + *i = atoi (q); + return buf; +} + +static fmentryptr fmlookup (fontnumber); + +boolean hasfmentry (fontnumber f) +{ + if (mpfontmap[f] == NULL) + mpfontmap[f] = fmlookup (f); + assert (mpfontmap[f] != NULL); + return mpfontmap[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); +} + +/* 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))) + 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))) + 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. +*/ + +int avl_do_entry (fm_entry * fp, int mode) +{ + fm_entry *p; + void *a; + void **aa; + + /* handle tfm_name link */ + + if (strcmp (fp->tfm_name, nontfm)) { + 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 (fontsizes[p->tfm_num]!=0) { + 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 (fontsizes[p->tfm_num]!=0) { + /* 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_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; + } + if (fm->pid != -1 && + !(is_truetype (fm) && is_included (fm) && + is_subsetted (fm) && !is_reencoded (fm))) { + if (warn) + pdftex_warn + ("invalid entry for `%s': PidEid can be used only with subsetted non-reencoded TrueType fonts", + fm->tfm_name); + a += 64; + } + 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 + }; + const size_t n = strlen (s); + int 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)) + return true; + return false; +}; + +/**********************************************************************/ + +static void fm_scan_line () +{ + int a, b, c, j, u = 0, v = 0; + float d; + fm_entry *fm; + char fm_line[FM_BUF_SIZE], buf[FM_BUF_SIZE]; + char *p, *q, *r, *s; + switch (mitem->type) { + case MAPFILE: + p = fm_line; + do { + c = fm_getchar (); + append_char_to_buf (c, p, fm_line, FM_BUF_SIZE); + } + while (c != 10); + *(--p) = '\0'; + r = fm_line; + break; + case MAPLINE: + r = mitem->line; /* work on string from makecstring() */ + break; + default: + assert (0); + } + if (*r == '\0' || is_cfg_comment (*r)) + return; + fm = new_fm_entry (); + read_field (r, q, buf); + 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++; + } + while (1) { /* loop through "specials", encoding, font file */ + skip (r, ' '); + switch (*r) { + case '\0': + 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 (str_prefix (s, "SlantFont")) { + 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 (str_prefix (s, "ExtendFont")) { + 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 != '\0'; 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 != '\0'; 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; + case 'P': /* handle cases for subfonts like 'PidEid=3,1' */ + if (sscanf (r, "PidEid=%i, %i %n", &a, &b, &c) >= 2) { + fm->pid = a; + fm->eid = b; + r += c; + 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 (handle_subfont_fm (fm, mitem->mode)) /* is this a subfont? */ + // return; + if (avl_do_entry (fm, mitem->mode) == 0) /* if success */ + return; + bad_line: + delete_fm_entry (fm); +} + +/**********************************************************************/ + +void fm_read_info () +{ + if (tfm_tree == NULL) + create_avl_trees (); + if (mitem->line == NULL) /* nothing to do */ + return; + mitem->lineno = 1; + switch (mitem->type) { + case MAPFILE: + set_cur_file_name (mitem->line); + if (!fm_open ()) { + pdftex_warn ("cannot open font map file"); + } else { + cur_file_name = (char *) nameoffile + 1; + mp_printf ("{%s", cur_file_name); + while (!fm_eof ()) { + fm_scan_line (); + mitem->lineno++; + } + fm_close (); + mp_printf ("}"); + fm_file = NULL; + } + break; + case MAPLINE: + cur_file_name = NULL; /* makes pdftex_warn() shorter */ + fm_scan_line (); + break; + default: + assert (0); + } + mitem->line = NULL; /* done with this line */ + cur_file_name = NULL; + return; +} + +/**********************************************************************/ + +fontnumber tfmoffm (fmentryptr fm_pt) +{ + return ((fm_entry *) fm_pt)->tfm_num; +} + +static fm_entry *mk_ex_fm (fontnumber 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 = 0; + fm->tfm_num = f; + fm->tfm_avail = TFM_FOUND; + assert (strcmp (fm->tfm_name, nontfm)); + return fm; +} + +static void init_fm (fm_entry * fm, fontnumber 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 (fontnumber f) +{ + char *tfm; + fm_entry *fm, *exfm; + fm_entry tmp; + int ai, e; + if (tfm_tree == NULL) + fm_read_info (); /* only to read default map file */ + tfm = makecstring (fontname[f]); + assert (strcmp (tfm, nontfm)); + + /* 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 */ + return (fmentryptr) fm; /* font expansion uses the base font */ + /* the following code would be obsolete, as would be mk_ex_fm() */ + 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; + 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) +{ + fontnumber 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 (fontsizes[p->tfm_num]!=0) + 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)) { + s = maketexstring (p->tfm_name); + if ((f = tfmlookup (s, 0)) != getnullfont ()) { + loaded_tfm_found = p; + if (mpfontmap[f] == NULL) + mpfontmap[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)) { + 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)) + 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; + 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 = (fm_entry *) avl_t_prev (&t2); + + /* search forward */ + do { + if (used_tfm (p)) + return p; + p = (fm_entry *) 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 = (fm_entry *) avl_t_prev (&t2); + } + + if (loaded_tfm_found != NULL) + p = loaded_tfm_found; + else if (avail_tfm_found != NULL) { + /* TH: do not do this for metapost, there is no embedding anyway */ + /* 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; +} + + +/**********************************************************************/ +/* +Process map file given by its name or map line contents. Items not +beginning with [+-=] flush default map file, if it has not yet been +read. Leading blanks and blanks immediately following [+-=] are ignored. +*/ + +void process_map_item (char *s, int type) +{ + char *p; + int mode; + if (*s == ' ') + s++; /* ignore leading blank */ + 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; /* like +, but also: */ + mitem->line = NULL; /* flush default map file name */ + } + if (*s == ' ') + s++; /* ignore blank after [+-=] */ + p = s; /* map item starts here */ + switch (type) { + case MAPFILE: /* remove blank at end */ + while (*p != '\0' && *p != ' ') + p++; + *p = '\0'; + break; + case MAPLINE: /* blank at end allowed */ + break; + default: + assert (0); + } + if (mitem->line != NULL) /* read default map file first */ + fm_read_info (); + if (*s != '\0') { /* only if real item to process */ + mitem->mode = mode; + mitem->type = type; + mitem->line = s; + fm_read_info (); + } +} + +void mpmapfile (strnumber t) +{ + char *s = xstrdup(makecstring (t)); + process_map_item (s, MAPFILE); + xfree (s); +} + +void mpmapline (strnumber t) +{ + char *s = xstrdup(makecstring (t)); + process_map_item (s, MAPLINE); + xfree (s); +} + +void mpinitmapfile (void) +{ + assert (mitem == NULL); + mitem = xtalloc (1, mapitem); + mitem->mode = FM_DUPIGNORE; + mitem->type = MAPFILE; + if (kpse_find_file("mpost.map", kpse_fontmap_format,0)) + mitem->line = xstrdup ("mpost.map"); + else + mitem->line = xstrdup ("pdftex.map"); +} + +/**********************************************************************/ +/* 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 */ |