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-rw-r--r--Build/source/texk/web2c/omegafonts/parse_ofm.c373
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diff --git a/Build/source/texk/web2c/omegafonts/parse_ofm.c b/Build/source/texk/web2c/omegafonts/parse_ofm.c
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+++ b/Build/source/texk/web2c/omegafonts/parse_ofm.c
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+/* parse_ofm.h: Checking an existent OFM file
+
+This file is part of Omega,
+which is based on the web2c distribution of TeX,
+
+Copyright (c) 1994--2001 John Plaice and Yannis Haralambous
+Copyright (C) 2005, 2006 Roozbeh Pournader
+
+Omega 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.
+
+Omega 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 Omega; if not, write to the Free Software Foundation, Inc.,
+59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+
+#include "cpascal.h"
+#include "list_routines.h"
+#include "header_routines.h"
+#include "manifests.h"
+#include "char_routines.h"
+#include "ligkern_routines.h"
+#include "out_ofm.h"
+#include "extra_routines.h"
+#include "param_routines.h"
+#include "dimen_routines.h"
+#include "error_routines.h"
+#include "print_routines.h"
+#include "out_routines.h"
+#include "font_routines.h"
+#include "parse_ofm.h"
+#include "omfonts.h"
+#include "manifests.h"
+
+unsigned top_char, top_width, top_height, top_depth, top_italic;
+unsigned start_ptr, check_sum_pos, design_size_pos, scheme_pos;
+unsigned seven_bit_flag_pos;
+unsigned random_word_pos, header_length;
+
+unsigned ivalues_start,fvalues_start,mvalues_start,
+ rules_start,glues_start,penalties_start;
+unsigned ivalues_base,fvalues_base,mvalues_base,
+ rules_base,glues_base,penalties_base;
+unsigned char_base,width_base,height_base,depth_base,italic_base;
+unsigned lig_kern_base,kern_base,exten_base,param_base;
+ /* base addresses for the subfiles */
+unsigned char_start;
+unsigned bytes_per_entry;
+
+unsigned lf;
+boolean ofm_on;
+unsigned start_pos;
+unsigned family_pos;
+unsigned ofm_ptr;
+unsigned ncw;
+unsigned ncl;
+unsigned nce;
+unsigned nco;
+unsigned npc;
+
+static void
+eval_two_bytes(unsigned *pos) {
+ if (ofm[ofm_ptr]>127)
+ fatal_error_0("One of the subfile sizes (2) is negative");
+ *pos = ofm[ofm_ptr]*0x100 + ofm[ofm_ptr+1];
+ ofm_ptr += 2;
+}
+
+static void
+eval_four_bytes(unsigned *pos) {
+ if (ofm[ofm_ptr]>127)
+ fatal_error_0("One of the subfile sizes (4) is negative");
+ *pos = ofm[ofm_ptr]*0x1000000 + ofm[ofm_ptr+1]*0x10000 +
+ ofm[ofm_ptr+2]*0x100 + ofm[ofm_ptr+3];
+ ofm_ptr += 4;
+}
+
+static void ofm_organize(void);
+static void ofm_read_simple(void);
+static void ofm_read_rest(void);
+
+boolean changed = FALSE;
+
+void
+parse_ofm(boolean read_ovf)
+{
+ ofm_organize();
+ if (read_ovf == TRUE) input_ovf_file();
+ ofm_read_simple();
+ if (read_ovf == TRUE) input_ovf_fonts();
+ ofm_read_rest();
+ if (read_ovf == TRUE) input_ovf_chars();
+ print_characters(read_ovf);
+ if (changed) {
+ left();
+ out("COMMENT THE OFM FILE WAS BAD, SO THE DATA HAS BEEN CHANGED!");
+ right();
+ }
+}
+
+/* parse_ofm ensures that all of the header entries are consistent.
+ The file is assumed to have been read in already, with the
+ contents in the ofm array (length_ofm bytes).
+*/
+
+void
+ofm_organize(void)
+{
+ unsigned copies,i;
+
+ ofm_on = false; ofm_level = OFM_NOLEVEL; lf = 0; lh = 0;
+ nco = 0; ncw = 0; npc = 0;
+ bc = 0; ec = 0; nw = 0; nh = 0; nd = 0; ni = 0;
+ nl = 0; nk = 0; ne = 0; np = 0;
+ nki = 0; nwi = 0; nkf = 0; nwf = 0;
+ nkm = 0; nwm = 0;
+ nkr = 0; nwr = 0; nkg = 0; nwg = 0;
+ nkp = 0; nwp = 0; font_dir = 0;
+
+ if (length_ofm < 8)
+ fatal_error_0("File too short");
+ lf = ofm[0]*256 + ofm[1];
+ if (lf==0) { /* This is not a TFM file, it is an OFM-file */
+ ofm_on = TRUE;
+
+ /* next line edited by Thomas Esser, based on a patch sent
+ * by Hossein Movahhedian. The old code had " + 1"
+ * instead of "+ OFM_LEVEL0" and caused lots of segfaults */
+ ofm_level = ofm[2]*0x100 + ofm[3] + OFM_LEVEL0;
+ if (ofm[4]>127)
+ fatal_error_0("File length is negative");
+ lf = ofm[4]*0x1000000 + ofm[5]*0x10000 + ofm[6]*0x100 + ofm[7];
+ } else {
+ ofm_on = FALSE;
+ ofm_level = OFM_TFM;
+ }
+ if ((lf*4)!=length_ofm)
+ fatal_error_2("Stated (%d) and actual (%d) file length do not match",
+ lf*4, length_ofm);
+
+ switch(ofm_level) {
+ case OFM_TFM: { start_pos = 2; check_sum_pos = 24; break; }
+ case OFM_LEVEL0: { start_pos = 8; check_sum_pos = 56; break; }
+ case OFM_LEVEL1: { start_pos = 8; check_sum_pos = 116; break; }
+ default: { fatal_error_1("OFMLEVEL %d not supported", ofm_level-OFM_LEVEL0);
+ break; }
+ }
+ design_size_pos = check_sum_pos+4;
+ scheme_pos = design_size_pos+4;
+ family_pos = scheme_pos+40;
+ random_word_pos = family_pos+20;
+
+ ofm_ptr = start_pos;
+
+ if (ofm_on==FALSE) {
+ eval_two_bytes(&lh);
+ eval_two_bytes(&bc);
+ eval_two_bytes(&ec);
+ eval_two_bytes(&nw);
+ eval_two_bytes(&nh);
+ eval_two_bytes(&nd);
+ eval_two_bytes(&ni);
+ eval_two_bytes(&nl);
+ eval_two_bytes(&nk);
+ eval_two_bytes(&ne);
+ eval_two_bytes(&np);
+ ncw = (ec-bc+1);
+ ncl = nl;
+ nce = ne;
+ header_length = 6;
+ top_char = 255;
+ top_width = 255;
+ top_height = 15;
+ top_depth = 15;
+ top_italic = 63;
+ } else {
+ eval_four_bytes(&lh);
+ eval_four_bytes(&bc);
+ eval_four_bytes(&ec);
+ eval_four_bytes(&nw);
+ eval_four_bytes(&nh);
+ eval_four_bytes(&nd);
+ eval_four_bytes(&ni);
+ eval_four_bytes(&nl);
+ eval_four_bytes(&nk);
+ eval_four_bytes(&ne);
+ eval_four_bytes(&np);
+ eval_four_bytes(&font_dir);
+ top_char = 0x10ffff;
+ top_width = 65535;
+ top_height = 255;
+ top_depth = 255;
+ top_italic = 255;
+ ncl = nl*2;
+ nce = ne*2;
+ if (ofm_level==OFM_LEVEL0) {
+ header_length = 14;
+ ncw = 2*(ec-bc+1);
+ } else {
+ header_length = 29;
+ eval_four_bytes(&nco);
+ eval_four_bytes(&ncw);
+ eval_four_bytes(&npc);
+ eval_four_bytes(&nki); /* Kinds of font ivalues */
+ eval_four_bytes(&nwi); /* Words of font ivalues */
+ eval_four_bytes(&nkf); /* Kinds of font fvalues */
+ eval_four_bytes(&nwf); /* Words of font fvalues */
+ eval_four_bytes(&nkm); /* Kinds of font mvalues */
+ eval_four_bytes(&nwm); /* Words of font mvalues */
+ eval_four_bytes(&nkr); /* Kinds of font rules */
+ eval_four_bytes(&nwr); /* Words of font rules */
+ eval_four_bytes(&nkg); /* Kinds of font glues */
+ eval_four_bytes(&nwg); /* Words of font glues */
+ eval_four_bytes(&nkp); /* Kinds of font penalties */
+ eval_four_bytes(&nwp); /* Words of font penalties */
+ }
+ }
+ if (lf != (header_length+lh+ncw+nw+nh+nd+ni+ncl+nk+nce+np+
+ nki+nwi+nkf+nwf+nkm+nwm+nkr+nwr+nkg+nwg+nkp+nwp))
+ fatal_error_0("Subfile sizes do not add up to the stated total");
+ if (lh < 2)
+ fatal_error_1("The header length is only %d", lh);
+ if ((bc > (ec+1)) || (ec > top_char))
+ fatal_error_2("The character code range %d .. %d is illegal", bc, ec);
+ if ((nw==0) || (nh==0) || (nd==0) || (ni==0))
+ fatal_error_0("Incomplete subfiles for character dimensions");
+ ivalues_start = header_length+lh;
+ fvalues_start = ivalues_start+nki;
+ mvalues_start = fvalues_start+nkf;
+ rules_start = mvalues_start+nkm;
+ glues_start = rules_start+nkr;
+ penalties_start = glues_start+nkg;
+ ivalues_base = penalties_start+nkp;
+ fvalues_base = ivalues_base+nwi;
+ mvalues_base = fvalues_base+nwf;
+ rules_base = mvalues_base+nwm;
+ glues_base = rules_base+nwr;
+ penalties_base = glues_base+nwg;
+ char_base = penalties_base+nwp;
+ bytes_per_entry = (12 + 2*npc) / 4 * 4;
+ init_planes();
+ no_labels = 0;
+ switch (ofm_level) {
+ case OFM_TFM: {
+ for(i=bc; i<=ec; i++) {
+ init_character(i,NULL);
+ char_start = 4*char_base+4*(i-bc);
+ current_character->index_indices[C_WD] =
+ ofm[char_start] & 0xff;
+ current_character->index_indices[C_HT] =
+ (ofm[char_start+1] & 0xf0) >> 4;
+ current_character->index_indices[C_DP] =
+ ofm[char_start+1] & 0xf;
+ current_character->index_indices[C_IC] =
+ (ofm[char_start+2] & 0xfc) >> 2;
+ current_character->tag =
+ ofm[char_start+2] & 0x3;
+ if (current_character->tag == TAG_LIG) no_labels++;
+ current_character->remainder =
+ ofm[char_start+3] & 0xff;
+ }
+ break;
+ }
+ case OFM_LEVEL0: {
+ for(i=bc; i<=ec; i++) {
+ init_character(i,NULL);
+ char_start = 4*char_base+8*(i-bc);
+ current_character->index_indices[C_WD] =
+ ((ofm[char_start] & 0xff) << 8) |
+ (ofm[char_start+1] & 0xff);
+ current_character->index_indices[C_HT] =
+ ofm[char_start+2] & 0xff;
+ current_character->index_indices[C_DP] =
+ ofm[char_start+3] & 0xff;
+ current_character->index_indices[C_IC] =
+ ofm[char_start+4] & 0xff;
+ current_character->tag =
+ ofm[char_start+5] & 0x3;
+ if (current_character->tag == TAG_LIG) no_labels++;
+ current_character->remainder =
+ ((ofm[char_start+6] & 0xff) << 8) |
+ (ofm[char_start+7] & 0xff);
+ }
+ break;
+ }
+ case OFM_LEVEL1: {
+ char_start = 4*char_base;
+ i = bc;
+ while (i<=ec) {
+ init_character(i,NULL);
+ current_character->index_indices[C_WD] =
+ ((ofm[char_start] & 0xff) << 8) |
+ (ofm[char_start+1] & 0xff);
+ current_character->index_indices[C_HT] =
+ ofm[char_start+2] & 0xff;
+ current_character->index_indices[C_DP] =
+ ofm[char_start+3] & 0xff;
+ current_character->index_indices[C_IC] =
+ ofm[char_start+4] & 0xff;
+ current_character->tag =
+ ofm[char_start+5] & 0x3;
+ if (current_character->tag == TAG_LIG) no_labels++;
+ current_character->remainder =
+ ((ofm[char_start+6] & 0xff) << 8) |
+ (ofm[char_start+7] & 0xff);
+ copies = 256*ofm[char_start+8]+ofm[char_start+9];
+ /* Handle character params */
+ copy_characters(i, copies);
+ i += copies + 1;
+ char_start += bytes_per_entry;
+ }
+ if (char_start != (4*(char_base+ncw)))
+ fatal_error_0("Length of char info table does not "
+ "correspond to specification");
+ break;
+ }
+ default: {
+ fatal_error_1("Inappropriate font level (%d)", ofm_level-OFM_LEVEL0);
+ }
+ }
+ width_base = char_base+ncw;
+ height_base = width_base+nw;
+ depth_base = height_base+nh;
+ italic_base = depth_base+nd;
+ lig_kern_base = italic_base+ni;
+ kern_base = lig_kern_base+ncl;
+ exten_base = kern_base+nk;
+ param_base = exten_base+nce-1;
+}
+
+void
+ofm_read_simple(void)
+{
+
+ if (ofm_on==TRUE) {
+ print_ofm_level(ofm_level-OFM_LEVEL0);
+ print_font_dir(font_dir);
+ }
+ header = (char *) ofm+check_sum_pos;
+ retrieve_header();
+ print_family();
+ print_face();
+ print_coding_scheme();
+ print_design_size();
+ out("(COMMENT DESIGNSIZE IS IN POINTS)"); out_ln();
+ out("(COMMENT OTHER SIZES ARE MULTIPLES OF DESIGNSIZE)"); out_ln();
+ print_check_sum();
+ if ((seven_bit == TRUE) || (ofm_level != OFM_TFM))
+ print_seven_bit_safe_flag();
+ retrieve_parameters(ofm+(4*param_base));
+ print_parameters();
+}
+
+void
+ofm_read_rest(void)
+{
+ retrieve_dimen_tables();
+ if (verbose_option==TRUE) print_dimen_tables();
+ retrieve_ligkern_table(ofm+(4*lig_kern_base), ofm+(4*kern_base));
+ adjust_labels(FALSE);
+ if (verbose_option==TRUE) print_labels();
+ print_ligkern_table();
+ retrieve_exten_table(ofm+(4*exten_base));
+ if (verbose_option==TRUE) print_extens();
+}