-/* Copyright 2014 Clerk Ma
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301 USA. */
-
-#define EXTERN extern
-
-#include "texd.h"
-
-/* sec 0440 */
-void scan_int (void)
-{
- boolean negative;
- integer m;
- small_number d;
- boolean vacuous;
- boolean OKsofar;
-
- radix = 0;
- OKsofar = true;
- negative = false;
-
- do
- {
- do
- {
- get_x_token();
- }
- while (!(cur_cmd != spacer));
-
- if (cur_tok == other_token + '-')
- {
- negative = !negative;
- cur_tok = other_token + '+';
- }
- }
- while (!(cur_tok != other_token + '+'));
-
- if (cur_tok == alpha_token)
- {
- get_token();
-
- if (cur_tok < cs_token_flag)
- {
- cur_val = cur_chr;
-
- if (cur_cmd <= right_brace)
- if (cur_cmd == right_brace)
- incr(align_state);
- else
- decr(align_state);
- }
- else if (cur_tok < cs_token_flag + single_base)
- cur_val = cur_tok - cs_token_flag - active_base;
- else
- cur_val = cur_tok - cs_token_flag - single_base;
-
- if (cur_val > 255)
- {
- print_err("Improper alphabetic constant");
- help2("A one-character control sequence belongs after a ` mark.",
- "So I'm essentially inserting \\0 here.");
- cur_val = '0';
- back_error();
- }
- else
- {
- get_x_token();
-
- if (cur_cmd != spacer)
- back_input();
- }
- }
- else if ((cur_cmd >= min_internal) && (cur_cmd <= max_internal))
- {
- scan_something_internal(int_val, false);
- }
- else
- {
- radix = 10;
- m = 214748364L; /* 7FFFFFFF hex */
-
- if (cur_tok == octal_token)
- {
- radix = 8;
- m = 268435456L; /* 2^28 */
- get_x_token();
- }
- else if (cur_tok == hex_token)
- {
- radix = 16;
- m = 134217728L; /* 2^27 8000000 hex */
- get_x_token();
- }
-
- vacuous = true;
- cur_val = 0;
-
- while (true)
- {
- if ((cur_tok < zero_token + radix) && (cur_tok >= zero_token) && (cur_tok <= zero_token + 9))
- d = cur_tok - zero_token;
- else if (radix == 16)
- if ((cur_tok <= A_token + 5) && (cur_tok >= A_token))
- d = cur_tok - A_token + 10;
- else if ((cur_tok <= other_A_token + 5) && (cur_tok >= other_A_token))
- d = cur_tok - other_A_token;
- else
- goto lab30;
- else
- goto lab30;
-
- vacuous = false;
-
- if ((cur_val >= m) && ((cur_val > m) || (d > 7) || (radix != 10)))
- {
- if (OKsofar)
- {
- print_err("Number too big");
- help2("I can only go up to 2147483647='17777777777=\"7FFFFFFF,",
- "so I'm using that number instead of yours.");
- error();
- cur_val = 2147483647L; /* 7FFFFFFF hex */
- OKsofar = false;
- }
- }
- else
- cur_val = cur_val * radix + d;
- get_x_token();
- }
-lab30:;
-
- if (vacuous)
- {
- print_err("Missing number, treated as zero");
- help3("A number should have been here; I inserted `0'.",
- "(If you can't figure out why I needed to see a number,",
- "look up `weird error' in the index to The TeXbook.)");
- back_error();
- }
- else if (cur_cmd != spacer)
- back_input();
- }
-
- if (negative)
- cur_val = - (integer) cur_val;
-}
-/* sec 0448 */
-void scan_dimen_(boolean mu, boolean inf, boolean shortcut)
-{
- boolean negative;
- integer f;
- integer num, denom;
- small_number k, kk;
- halfword p, q;
- scaled v;
- integer savecurval;
-
- f = 0;
- arith_error = false;
- cur_order = 0;
- negative = false;
-
- if (!shortcut)
- {
- negative = false;
-
- do
- {
- do
- {
- get_x_token();
- }
- while (!(cur_cmd != spacer));
-
- if (cur_tok == other_token + '-')
- {
- negative = ! negative;
- cur_tok = other_token + '+';
- }
- }
- while (!(cur_tok != other_token + '+'));
-
- if ((cur_cmd >= min_internal) && (cur_cmd <= max_internal))
- {
- if (mu)
- {
- scan_something_internal(mu_val, false);
-
- if (cur_val_level >= glue_val)
- {
- v = width(cur_val);
- delete_glue_ref(cur_val);
- cur_val = v;
- }
-
- if (cur_val_level == mu_val)
- goto lab89;
-
- if (cur_val_level != int_val)
- mu_error();
- }
- else
- {
- scan_something_internal(dimen_val, false);
-
- if (cur_val_level == dimen_val)
- goto lab89;
- }
- }
- else
- {
- back_input();
-
- if (cur_tok == continental_point_token)
- cur_tok = point_token;
-
- if (cur_tok != point_token)
- {
- scan_int();
- }
- else
- {
- radix = 10;
- cur_val = 0;
- }
-
- if (cur_tok == continental_point_token)
- cur_tok = point_token;
-
- if ((radix == 10) && (cur_tok == point_token))
- {
- k = 0;
- p = 0; /* p:=null l.8883 */
- get_token();
-
- while (true)
- {
- get_x_token();
-
- if ((cur_tok > zero_token + 9) || (cur_tok < zero_token))
- goto lab31;
-
- if (k < 17)
- {
- q = get_avail();
- link(q) = p;
- info(q) = cur_tok - zero_token;
- p = q;
- incr(k);
- }
- }
-lab31:
- for (kk = k; kk >= 1; kk--)
- {
- dig[kk - 1] = info(p);
- q = p;
- p = link(p);
- free_avail(q);
- }
-
- f = round_decimals(k);
-
- if (cur_cmd != spacer)
- back_input();
- }
- }
- }
-
- if (cur_val < 0)
- {
- negative = !negative;
- cur_val = - (integer) cur_val;
- }
-
- if (inf)
- {
- if (scan_keyword("fil"))
- {
- cur_order = fil;
-
- while (scan_keyword("l"))
- {
- if (cur_order == filll)
- {
- print_err("Illegal unit of measure (");
- print_string("replaced by filll)");
- help1("I dddon't go any higher than filll.");
- error();
- }
- else
- incr(cur_order);
- }
- goto lab88;
- }
- }
-
- savecurval = cur_val;
-
- do
- {
- get_x_token();
- }
- while (!(cur_cmd != spacer));
-
- if ((cur_cmd < min_internal) || (cur_cmd > max_internal))
- back_input();
- else
- {
- if (mu)
- {
- scan_something_internal(mu_val, false);
-
- if (cur_val_level >= glue_val)
- {
- v = width(cur_val);
- delete_glue_ref(cur_val);
- cur_val = v;
- }
-
- if (cur_val_level != mu_val)
- {
- mu_error();
- }
- }
- else
- {
- scan_something_internal(dimen_val, false);
- }
-
- v = cur_val;
- goto lab40;
- }
-
- if (mu)
- goto lab45;
-
- if (scan_keyword("em"))
- v = quad(cur_font);
- else if (scan_keyword("ex"))
- v = x_height(cur_font);
- else
- goto lab45;
-
- {
- get_x_token();
-
- if (cur_cmd != spacer)
- back_input();
- }
-lab40:
- cur_val = mult_and_add(savecurval, v, xn_over_d(v, f, 65536L), 1073741823L); /* 2^30 - 1 */
- goto lab89;
-lab45:
- if (mu)
- {
- if (scan_keyword("mu"))
- goto lab88;
- else
- {
- print_err("Illegal unit of measure (");
- print_string("mu inserted)");
- help4("The unit of measurement in math glue must be mu.",
- "To recover gracefully from this error, it's best to",
- "delete the erroneous units; e.g., type `2' to delete",
- "two letters. (See Chapter 27 of The TeXbook.)");
- error();
- goto lab88;
- }
- }
-
- if (scan_keyword("true"))
- {
- prepare_mag();
-
- if (mag != 1000)
- {
- cur_val = xn_over_d(cur_val, 1000, mag);
- f = (1000 * f + 65536L * tex_remainder) / mag;
- cur_val = cur_val + (f / 65536L);
- f = f % 65536L;
- }
- }
-
- if (scan_keyword("pt"))
- goto lab88;
-
- if (scan_keyword("in"))
- set_conversion(7227, 100);
- else if (scan_keyword("pc"))
- set_conversion(12, 1);
- else if (scan_keyword("cm"))
- set_conversion(7227, 254);
- else if (scan_keyword("mm"))
- set_conversion(7227, 2540);
- else if (scan_keyword("bp"))
- set_conversion(7227, 7200);
- else if (scan_keyword("dd"))
- set_conversion(1238, 1157);
- else if (scan_keyword("cc"))
- set_conversion(14856, 1157);
- else if (scan_keyword("Q"))
- set_conversion(7227, 10160);
- else if (scan_keyword("H"))
- set_conversion(7227, 10160);
- else if (scan_keyword("sp"))
- goto lab30;
- else
- {
- print_err("Illegal unit of measure (");
- print_string("pt inserted)");
- help6("Dimensions can be in units of em, ex, in, pt, pc,",
- "cm, mm, dd, cc, bp, or sp; but yours is a new one!",
- "I'll assume that you meant to say pt, for printer's points.",
- "To recover gracefully from this error, it's best to",
- "delete the erroneous units; e.g., type `2' to delete",
- "two letters. (See Chapter 27 of The TeXbook.)");
- error();
- goto lab32;
- }
-
- cur_val = xn_over_d(cur_val, num, denom);
- f = (num * f + 65536L * tex_remainder) / denom;
- cur_val = cur_val +(f / 65536L);
- f = f % 65536L;
-lab32:;
-lab88:
- if (cur_val >= 16384) /* 2^14 */
- arith_error = true;
- else
- cur_val = cur_val * 65536L + f;
-lab30:;
- {
- get_x_token();
-
- if (cur_cmd != spacer)
- back_input();
- }
-lab89:
- if (arith_error || (abs(cur_val) >= 1073741824L)) /* 2^30 */
- {
- print_err("Dimension too large");
- help2("I can't work with sizes bigger than about 19 feet.",
- "Continue and I'll use the largest value I can.");
- error();
- cur_val = 1073741823L; /* 2^30 - 1 */
- arith_error = false;
- }
-
- if (negative)
- cur_val = - (integer) cur_val;
-}
-/* sec 0461 */
-void scan_glue_(small_number level)
-{
- boolean negative;
- halfword q;
- boolean mu;
-
- mu = (level == mu_val);
- negative = false;
-
- do
- {
- do
- {
- get_x_token();
- }
- while (!(cur_cmd != spacer));
-
- if (cur_tok == other_token + '-')
- {
- negative = !negative;
- cur_tok = other_token + '+';
- }
- }
- while (!(cur_tok != other_token + '+'));
-
- if ((cur_cmd >= min_internal) && (cur_cmd <= max_internal))
- {
- scan_something_internal(level, negative);
-
- if (cur_val_level >= glue_val)
- {
- if (cur_val_level != level)
- {
- mu_error();
- }
- return;
- }
-
- if (cur_val_level == int_val)
- {
- scan_dimen(mu, false, true);
- }
- else if (level == mu_val)
- {
- mu_error();
- }
- }
- else
- {
- back_input();
- scan_dimen(mu, false, false);
-
- if (negative)
- cur_val = - (integer) cur_val;
- }
- q = new_spec(zero_glue);
- width(q) = cur_val;
-
- if (scan_keyword("plus"))
- {
- scan_dimen(mu, true, false);
- stretch(q) = cur_val;
- stretch_order(q) = cur_order;
- }
-
- if (scan_keyword("minus"))
- {
- scan_dimen(mu, true, false);
- shrink(q) = cur_val;
- shrink_order(q) = cur_order;
- }
-
- cur_val = q;
-}
-/* sec 0463 */
-halfword scan_rule_spec (void)
-{
- halfword q;
-
- q = new_rule();
-
- if (cur_cmd == vrule)
- width(q) = default_rule;
- else
- {
- height(q) = default_rule;
- depth(q) = 0;
- }
-
-lab21:
-
- if (scan_keyword("width"))
- {
- scan_dimen(false, false, false);
- width(q) = cur_val;
- goto lab21;
- }
-
- if (scan_keyword("height"))
- {
- scan_dimen(false, false, false);
- height(q) = cur_val;
- goto lab21;
- }
-
- if (scan_keyword("depth"))
- {
- scan_dimen(false, false, false);
- depth(q) = cur_val;
- goto lab21;
- }
-
- return q;
-}
-/* sec 0464 */
-halfword str_toks_(pool_pointer b)
-{
- halfword p;
- halfword q;
- halfword t;
- pool_pointer k;
-
- str_room(1);
- p = temp_head;
- link(p) = 0;
- k = b;
-
- while (k < pool_ptr)
- {
- t = str_pool[k];
-
- if (t == ' ')
- t = space_token;
- else
- t = other_token + t;
-
- fast_store_new_token(t);
- incr(k);
- }
-
- pool_ptr = b;
-
- return p;
-}
-/* sec 0465 */
-halfword the_toks (void)
-{
- register halfword Result;
- char old_setting;
- halfword p, q, r;
- pool_pointer b;
-
- get_x_token();
- scan_something_internal(tok_val, false);
-
- if (cur_val_level >= ident_val)
- {
- p = temp_head;
- link(p) = 0;
-
- if (cur_val_level == ident_val)
- store_new_token(cs_token_flag + cur_val);
- else if (cur_val != 0)
- {
- r = link(cur_val);
-
- while (r != 0)
- {
- fast_store_new_token(info(r));
- r = link(r);
- }
- }
-
- Result = p;
- }
- else
- {
- old_setting = selector;
- selector = new_string;
- b = pool_ptr;
-
- switch (cur_val_level)
- {
- case int_val:
- print_int(cur_val);
- break;
- case dimen_val:
- {
- print_scaled(cur_val);
- print_string("pt");
- }
- break;
- case glue_val:
- {
- print_spec(cur_val, "pt");
- delete_glue_ref(cur_val);
- }
- break;
- case mu_val:
- {
- print_spec(cur_val, "mu");
- delete_glue_ref(cur_val);
- }
- break;
- }
- selector = old_setting;
- Result = str_toks(b);
- }
-
- return Result;
-}
-/* sec 0467 */
-void ins_the_toks (void)
-{
- link(garbage) = the_toks();
- begin_token_list(link(temp_head), 4);
-}
-/* sec 0470 */
-void conv_toks (void)
-{
- char old_setting;
- char c;
- small_number savescannerstatus;
- pool_pointer b;
-
- c = cur_chr;
-
- switch (c)
- {
- case number_code:
- case roman_numeral_code:
- scan_int();
- break;
-
- case string_code:
- case meaning_code:
- savescannerstatus = scanner_status;
- scanner_status = 0;
- get_token();
- scanner_status = savescannerstatus;
- break;
-
- case font_name_code:
- scan_font_ident();
- break;
-
- case job_name_code:
- if (job_name == 0)
- open_log_file();
- break;
- }
-
- old_setting = selector;
- selector = new_string;
- b = pool_ptr;
-
- switch (c)
- {
- case number_code:
- print_int(cur_val);
- break;
-
- case roman_numeral_code:
- print_roman_int(cur_val);
- break;
-
- case string_code:
- if (cur_cs != 0)
- sprint_cs(cur_cs);
- else
- print_char(cur_chr);
- break;
-
- case meaning_code:
- print_meaning();
- break;
-
- case font_name_code:
- print(font_name[cur_val]);
-
- if (font_size[cur_val] != font_dsize[cur_val])
- {
- print_string(" at ");
- print_scaled(font_size[cur_val]);
- print_string("pt");
- }
- break;
-
- case job_name_code:
- print(job_name);
- break;
- }
-
- selector = old_setting;
- link(garbage) = str_toks(b);
- begin_token_list(link(temp_head), 4);
-}
-/* sec 0473 */
-halfword scan_toks_(boolean macrodef, boolean xpand)
-{
- register halfword Result;
- halfword t;
- halfword s;
- halfword p;
- halfword q;
- halfword unbalance;
- halfword hashbrace;
-
- if (macrodef)
- scanner_status = defining;
- else
- scanner_status = absorbing;
-
- warning_index = cur_cs;
- def_ref = get_avail();
- token_ref_count(def_ref) = 0;
- p = def_ref;
- hashbrace = 0;
- t = zero_token;
-
- if (macrodef)
- {
- while (true)
- {
- get_token();
-
- if (cur_tok < right_brace_limit)
- goto lab31;
-
- if (cur_cmd == mac_param)
- {
- s = match_token + cur_chr;
- get_token();
-
- if (cur_cmd == left_brace)
- {
- hashbrace = cur_tok;
- store_new_token(cur_tok);
- store_new_token(end_match_token);
- goto lab30;
- }
-
- if (t == zero_token + 9)
- {
- print_err("You already have nine parameters");
- help1("I'm going to ignore the # sign you just used.");
- error();
- }
- else
- {
- incr(t);
-
- if (cur_tok != t)
- {
- print_err("Parameters must be numbered consecutively");
- help2("I've inserted the digit you should have used after the #.",
- "Type `1' to delete what you did use.");
- back_error();
- }
- cur_tok = s;
- }
- }
-
- store_new_token(cur_tok);
- }
-
-lab31:
- store_new_token(end_match_token);
-
- if (cur_cmd == right_brace)
- {
- print_err("Missing { inserted");
- incr(align_state);
- help2("Where was the left brace? You said something like `\\def\\a}',",
- "which I'm going to interpret as `\\def\\a{}'.");
- error();
- goto lab40;
- }
-lab30:;
- }
- else
- {
- scan_left_brace();
- }
-
- unbalance = 1;
-
- while (true)
- {
- if (xpand)
- {
- while (true)
- {
- get_next();
-
- if (cur_cmd <= max_command)
- goto lab32;
-
- if (cur_cmd != the)
- {
- expand();
- }
- else
- {
- q = the_toks();
-
- if (link(temp_head) != 0)
- {
- link(p) = link(temp_head);
- p = q;
- }
- }
- }
-lab32:
- x_token();
- }
- else
- get_token();
-
- if (cur_tok < right_brace_limit)
- if (cur_cmd < right_brace)
- incr(unbalance);
- else
- {
- decr(unbalance);
-
- if (unbalance == 0)
- goto lab40;
- }
- else if (cur_cmd == mac_param)
- if (macrodef)
- {
- s = cur_tok;
-
- if (xpand)
- get_x_token();
- else
- get_token();
-
- if (cur_cmd != mac_param)
- if ((cur_tok <= zero_token) || (cur_tok > t))
- {
- print_err("Illegal parameter number in definition of ");
- sprint_cs(warning_index);
- help3("You meant to type ## instead of #, right?",
- "Or maybe a } was forgotten somewhere earlier, and things",
- "are all screwed up? I'm going to assume that you meant ##.");
- back_error();
- cur_tok = s;
- }
- else
- cur_tok = out_param_token - '0' + cur_chr;
- }
-
- store_new_token(cur_tok);
- }
-lab40:
- scanner_status = 0;
-
- if (hashbrace != 0)
- store_new_token(hashbrace);
-
- Result = p;
- return Result;
-}
-/* used only in ITEX.C */
-/* sec 0482 */
-void read_toks_(integer n, halfword r)
-{
- halfword p;
- halfword q;
- integer s;
-/* small_number m; */
- int m; /* 95/Jan/7 */
-
- scanner_status = defining;
- warning_index = r;
- def_ref = get_avail();
- token_ref_count(def_ref) = 0;
- p = def_ref;
- store_new_token(end_match_token);
-
- if ((n < 0) || (n > 15))
- m = 16;
- else
- m = n;
-
- s = align_state;
- align_state = 1000000L;
-
- do
- {
- begin_file_reading();
- cur_input.name_field = m + 1;
-
- if (read_open[m] == closed)
- if (interaction > nonstop_mode)
- if (n < 0)
- {
- print_string("");
- term_input("", 0);
- }
- else
- {
- print_ln();
- sprint_cs(r);
- {
- print_string("=");
- term_input("=", 0);
- }
- n = -1;
- }
- else
- {
- fatal_error("*** (cannot \\read from terminal in nonstop modes)");
- return; // abort_flag set
- }
- else if (read_open[m] == 1)
- if (input_ln(read_file[m], false))
- read_open[m] = 0;
- else
- {
- (void) a_close(read_file[m]);
- read_open[m] = 2;
- }
- else
- {
- if (!input_ln(read_file[m], true))
- {
- (void) a_close(read_file[m]);
- read_open[m] = 2;
-
- if (align_state != 1000000L)
- {
- runaway();
- print_err("File ended within ");
- print_esc("read");
- help1("This \\read has unbalanced braces.");
- align_state = 1000000L;
- error();
- }
- }
- }
-
- cur_input.limit_field = last;
-
- if ((end_line_char < 0) || (end_line_char > 255))
- decr(cur_input.limit_field);
- else
- buffer[cur_input.limit_field] = end_line_char;
-
- first = cur_input.limit_field + 1;
- cur_input.loc_field = cur_input.start_field;
- cur_input.state_field = new_line;
-
- while (true)
- {
- get_token();
-
- if (cur_tok == 0)
- goto lab30;
-
- if (align_state < 1000000L)
- {
- do
- {
- get_token();
- }
- while(!(cur_tok == 0));
-
- align_state = 1000000L;
- goto lab30;
- }
-
- store_new_token(cur_tok);
- }
-lab30:
- end_file_reading();
- }
- while(!(align_state == 1000000L));
-
- cur_val = def_ref;
- scanner_status = normal;
- align_state = s;
-}
-/* sec 0494 */
-void pass_text (void)
-{
- integer l;
- small_number savescannerstatus;
-
- savescannerstatus = scanner_status;
- scanner_status = skipping;
- l = 0;
- skip_line = line;
-
- while (true)
- {
- get_next();
-
- if (cur_cmd == fi_or_else)
- {
- if (l == 0)
- goto lab30;
-
- if (cur_chr == 2)
- decr(l);
- }
- else if (cur_cmd == if_test)
- incr(l);
- }
-lab30:
- scanner_status = savescannerstatus;
-}
-/* sec 0497 */
-void change_if_limit_(small_number l, halfword p)
-{
- halfword q;
-
- if (p == cond_ptr)
- if_limit = l;
- else
- {
- q = cond_ptr;
-
- while (true)
- {
- if (q == 0)
- {
- confusion("if");
- return; // abort_flag set
- }
-
- if (link(q) == p)
- {
- type(p) = l;
- return;
- }
-
- q = link(q);
- }
- }
-}
-/* called from tex2.c */
-/* sec 0498 */
-void conditional (void)
-{
- boolean b;
- char r;
- integer m, n;
- halfword p, q;
- small_number savescannerstatus;
- halfword savecondptr;
- small_number thisif;
-
- {
- p = get_node(if_node_size);
- link(p) = cond_ptr;
- type(p) = if_limit;
- subtype(p) = cur_if;
- if_line_field(p) = if_line;
- cond_ptr = p;
- cur_if = cur_chr;
- if_limit = if_code;
- if_line = line;
- }
-
- savecondptr = cond_ptr;
- thisif = cur_chr;
-
- switch (thisif)
- {
- case if_char_code:
- case if_cat_code:
- {
- {
- get_x_token();
-
- if (cur_cmd == relax)
- if (cur_chr == no_expand_flag)
- {
- cur_cmd = active_char;
- cur_chr = cur_tok - cs_token_flag - active_base;
- }
- }
-
- if ((cur_cmd > active_char) || (cur_chr > 255))
- {
- m = relax;
- n = 256;
- }
- else
- {
- m = cur_cmd;
- n = cur_chr;
- }
- {
- get_x_token();
-
- if (cur_cmd == relax)
- if (cur_chr == no_expand_flag)
- {
- cur_cmd = active_char;
- cur_chr = cur_tok - cs_token_flag - active_base;
- }
- }
-
- if ((cur_cmd > active_char) || (cur_chr > 255))
- {
- cur_cmd = relax;
- cur_chr = 256;
- }
-
- if (thisif == if_char_code)
- b = (n == cur_chr);
- else
- b = (m == cur_cmd);
- }
- break;
-
- case if_int_code:
- case if_dim_code:
- {
- if (thisif == if_int_code)
- scan_int();
- else
- scan_dimen(false, false, false);
-
- n = cur_val;
-
- do
- {
- get_x_token();
- }
- while(!(cur_cmd != spacer));
-
- if ((cur_tok >= other_token + '<') && (cur_tok <= other_token + '>'))
- r = cur_tok - other_token;
- else
- {
- print_err("Missing = inserted for ");
- print_cmd_chr(if_test, thisif);
- help1("I was expecting to see `<', `=', or `>'. Didn't.");
- back_error();
- r = '=';
- }
-
- if (thisif == if_int_code)
- scan_int();
- else
- scan_dimen(false, false, false);
-
- switch (r)
- {
- case '<':
- b = (n < cur_val);
- break;
-
- case '=':
- b = (n == cur_val);
- break;
-
- case '>':
- b = (n > cur_val);
- break;
- }
- }
- break;
-
- case if_odd_code:
- scan_int();
- b = odd(cur_val);
- break;
-
- case if_vmode_code:
- b = (abs(mode) == 1);
- break;
-
- case if_hmode_code:
- b = (abs(mode) == 102);
- break;
-
- case if_mmode_code:
- b = (abs(mode) == 203);
- break;
-
- case if_inner_code:
- b = (mode < 0);
- break;
-
- case if_void_code:
- case if_hbox_code:
- case if_vbox_code:
- {
- scan_eight_bit_int();
- p = box(cur_val);
-
- if (thisif == if_void_code)
- b = (p == 0);
- else if (p == 0)
- b = false;
- else if (thisif == if_hbox_code)
- b = (type(p) == hlist_node);
- else
- b = (type(p) == vlist_node);
- }
- break;
-
- case ifx_code:
- {
- savescannerstatus = scanner_status;
- scanner_status = 0;
- get_next();
- n = cur_cs;
- p = cur_cmd;
- q = cur_chr;
- get_next();
-
- if (cur_cmd != p)
- b = false;
- else if (cur_cmd < call)
- b = (cur_chr == q);
- else
- {
- p = link(cur_chr);
- q = link(equiv(n));
-
- if (p == q)
- b = true;
- else
- {
- while ((p != 0) && (q != 0))
- if (info(p) != info(q))
- p = 0;
- else
- {
- p = link(p);
- q = link(q);
- }
-
- b = ((p == 0) && (q == 0));
- }
- }
-
- scanner_status = savescannerstatus;
- }
- break;
-
- case if_eof_code:
- {
- scan_four_bit_int();
- b = (read_open[cur_val] == closed);
- }
- break;
-
- case if_true_code:
- b = true;
- break;
-
- case if_false_code:
- b = false;
- break;
-
- case if_case_code:
- {
- scan_int();
- n = cur_val;
-
- if (tracing_commands > 1)
- {
- begin_diagnostic();
- print_string("{case ");
- print_int(n);
- print_char('}');
- end_diagnostic(false);
- }
-
- while (n != 0)
- {
- pass_text();
-
- if (cond_ptr == savecondptr)
- if (cur_chr == or_code)
- decr(n);
- else
- goto lab50;
- else if (cur_chr == fi_code)
- {
- p = cond_ptr;
- if_line = if_line_field(p);
- cur_if = subtype(p);
- if_limit = type(p);
- cond_ptr = link(p);
- free_node(p, if_node_size);
- }
- }
-
- change_if_limit(or_code, savecondptr);
- return;
- }
- break;
- }
-
- if (tracing_commands > 1)
- {
- begin_diagnostic();
-
- if (b)
- print_string("{true}");
- else
- print_string("{false}");
-
- end_diagnostic(false);
- }
-
- if (b) /* b may be used without ... */
- {
- change_if_limit(else_code, savecondptr);
- return;
- }
-
- while (true)
- {
- pass_text();
-
- if (cond_ptr == savecondptr)
- {
- if (cur_chr != or_code)
- goto lab50;
-
- print_err("Extra ");
- print_esc("or");
- help1("I'm ignoring this; it doesn't match any \\if.");
- error();
- }
- else if (cur_chr == fi_code)
- {
- p = cond_ptr;
- if_line = if_line_field(p);
- cur_if = subtype(p);
- if_limit = type(p);
- cond_ptr = link(p);
- free_node(p, if_node_size);
- }
- }
-
-lab50:
- if (cur_chr == fi_code)
- {
- p = cond_ptr;
- if_line = if_line_field(p);
- cur_if = subtype(p);
- if_limit = type(p);
- cond_ptr = link(p);
- free_node(p, if_node_size);
- }
- else
- if_limit = fi_code;
-}
-/* sec 0515 */
-void begin_name (void)
-{
- area_delimiter = 0;
- ext_delimiter = 0;
-}
-/* This gathers up a file name and makes a string of it */
-/* Also tries to break it into `file area' `file name' and `file extension' */
-/* Used by scan_file_name and prompt_file_name */
-/* We assume tilde has been converted to pseudo_tilde and space to pseudo_space */
-/* returns false if it is given a space character - end of file name */
-/* sec 0516 */
-boolean more_name_(ASCII_code c)
-{
- if (quoted_file_name == 0 && c == ' ')
- return false;
- else if (quoted_file_name != 0 && c == '"')
- {
- quoted_file_name = 0; /* catch next space character */
- return true; /* accept ending quote, but throw away */
- }
- else
- {
- str_room(1);
- append_char(c);
- // for DOS/Windows
- if ((c == '/' || c == '\\' || c == ':'))
- {
- area_delimiter = cur_length;
- ext_delimiter = 0;
- }
- else if (c == '.')
- ext_delimiter = cur_length;
-
- return true;
- }
-}
-/******************************** 2000 August 15th start ***********************/
-
-// The following code is to save string space used by TeX for filenames
-// Not really critical in a system that has dynamic memory allocation
-// And may slow it down slightly - although this linear search only
-// occurs when opening a file, which is somewhat slow inany case...
-
-// see if string from str_pool[start] to str_pool[end]
-// occurs elsewhere in string pool - returns string number
-// returns -1 if not found in string pool 2000 Aug 15
-
-int find_string (int start, int end)
-{
- int k, nlen = end - start;
- char *s;
-
- if (trace_flag)
- {
- sprintf(log_line, "\nLOOKING for string (str_ptr %d nlen %d) ", str_ptr, end - start);
- s = log_line + strlen(log_line);
- strncpy(s, (const char *) str_pool + start, nlen);
- strcpy(s + nlen, "");
- show_line(log_line, 0);
- }
-
-// avoid problems with(cur_name == flushablestring)by going only up to str_ptr-1
-// code in new_font (tex8.c) will take care of reuse of font name already
- for (k = 0; k < str_ptr - 1; k++)
- {
- if (length(k) != nlen)
- continue;
-
- if (strncmp((const char *) str_pool + start, (const char *) str_pool + str_start[k], nlen) == 0)
- {
- if (trace_flag)
- {
- sprintf(log_line, "\nFOUND the string %d (%d) ", k, str_start[k+1]-str_start[k]);
- s = log_line + strlen(log_line);
- strncpy(s, (const char *)str_pool + start, nlen);
- strcpy(s+nlen, "\n");
- show_line(log_line, 0);
- }
- return k; // return number of matching string
- }
- }
-
- if (trace_flag)
- {
- sprintf(log_line, "\nNOT FOUND string ");
- s = log_line + strlen(log_line);
- strncpy(s, (const char*)str_pool + start, nlen);
- strcpy(s + nlen, "\n");
- show_line(log_line, 0);
- }
-
- return -1; // no match found
-}
-
-// snip out the string from str_pool[start] to str_pool[end]
-// and move everything above it down 2000 Aug 15
-
-void remove_string (int start, int end)
-{
- int nlen = pool_ptr - end; // how many bytes to move down
- char *s;
-
-// int trace_flag=1; // debugging only
-// if (end < start) show_line("\nEND < START", 1);
-// if (pool_ptr < end) show_line("\nPOOLPTR < END", 1);
-
- if (trace_flag)
- {
- int n = end - start;
- sprintf(log_line, "\nSTRIPPING OUT %d %d ", n, nlen);
- s = log_line + strlen(log_line);
- strncpy(s, (const char *)str_pool + start, n);
- strcpy(s + n, "\n");
- show_line(log_line, 0);
- }
-
- if (nlen > 0)
- memcpy(str_pool + start, str_pool + end, nlen);
-
- pool_ptr = start + nlen; // poolprt - (end-start);
-}
-
-void show_string (int k)
-{
- int nlen = length(k);
- char *s;
-
- sprintf(log_line, "\nSTRING %5d (%3d) %5d--%5d ",
- k, nlen, str_start[k], str_start[k+1]);
- s = log_line + strlen(log_line);
- strncpy(s, (const char *)str_pool + str_start[k], nlen);
- strcpy(s + nlen, "");
- show_line(log_line, 0);
-}
-
-void show_all_strings (void)
-{
- int k;
-
- for (k = 0; k < str_ptr; k++)
- show_string(k);
-}
-
-/********************************** 2000 August 15 end ****************************/
-/* sec 0517 */
-void end_name (void)
-{
-#ifdef ALLOCATESTRING
- if (str_ptr + 3 > current_max_strings)
- str_start = realloc_str_start(increment_max_strings + 3);
-
- if (str_ptr + 3 > current_max_strings)
- {
- overflow("number of strings", current_max_strings - init_str_ptr);
- return; // abort_flag set
- }
-#else
- if (str_ptr + 3 > max_strings)
- {
- overflow("number of strings", max_strings - init_str_ptr);
- return; // abort_flag set
- }
-#endif
-
- if (area_delimiter == 0) // no area delimiter ':' '/' or '\' found
- cur_area = 335; // "" default area
- else
- {
- if (save_strings_flag && (cur_area = find_string(str_start[str_ptr], str_start[str_ptr] + area_delimiter)) > 0)
- {
- remove_string(str_start[str_ptr], str_start[str_ptr] + area_delimiter);
- area_delimiter = 0; // area_delimiter - area_delimiter;
-
- if (ext_delimiter != 0)
- ext_delimiter = ext_delimiter - area_delimiter;
-
-// str_start[str_ptr + 1]= str_start[str_ptr]+ area_delimiter; // test only
-// incr(str_ptr); // test only
- }
- else // carve out string for "cur_area"
- {
- cur_area = str_ptr;
- str_start[str_ptr + 1] = str_start[str_ptr] + area_delimiter;
- incr(str_ptr);
- }
- }
-
- if (ext_delimiter == 0) // no extension delimiter '.' found
- {
- cur_ext = 335; // "" default extension
-
- if (save_strings_flag && (cur_name = find_string(str_start[str_ptr], pool_ptr)) > 0)
- {
- remove_string(str_start[str_ptr], pool_ptr);
-// (void) make_string(); // test only
- }
- else // Make string from str_start[str_ptr]to pool_ptr
- cur_name = make_string();
- }
- else // did find an extension
- {
- if (save_strings_flag &&
- (cur_name = find_string(str_start[str_ptr], str_start[str_ptr] + ext_delimiter - area_delimiter-1)) > 0)
- {
- remove_string(str_start[str_ptr], str_start[str_ptr] + ext_delimiter - area_delimiter - 1);
-// str_start[str_ptr + 1]= str_start[str_ptr]+ ext_delimiter - area_delimiter - 1; // test only
-// incr(str_ptr); // test only
- }
- else // carve out string for "cur_name"
- {
- cur_name = str_ptr;
- str_start[str_ptr + 1]= str_start[str_ptr]+ ext_delimiter - area_delimiter - 1;
- incr(str_ptr);
- }
-
- if (save_strings_flag && (cur_ext = find_string(str_start[str_ptr], pool_ptr)) > 0)
- {
- remove_string(str_start[str_ptr], pool_ptr);
-// (void) make_string(); // test only
- }
- else // Make string from str_start[str_ptr]to pool_ptr
- cur_ext = make_string();
- }
-}
-
-/* n current name, a current area, e current extension */
-/* result in name_of_file[] */
-/* sec 0519 */
-void pack_file_name_(str_number n, str_number a, str_number e)
-{
- integer k;
- ASCII_code c;
- pool_pointer j;
-
- k = 0;
-
- for (j = str_start[a]; j <= str_start[a + 1] - 1; j++)
- {
- c = str_pool[j];
- incr(k);
-
- if (k <= PATHMAX)
- name_of_file[k] = xchr[c];
- }
-
- for (j = str_start[n]; j <= str_start[n + 1] - 1; j++)
- {
- c = str_pool[j];
- incr(k);
-
- if (k <= PATHMAX)
- name_of_file[k] = xchr[c];
- }
-
- for (j = str_start[e]; j <= str_start[e + 1] - 1; j++)
- {
- c = str_pool[j];
- incr(k);
-
- if (k <= PATHMAX)
- name_of_file[k] = xchr[c];
- }
-
- if (k < PATHMAX)
- name_length = k;
- else
- name_length = PATHMAX - 1;
-
-/* pad it out with spaces ... what for ? in case we modify and forget ? */
- for (k = name_length + 1; k <= PATHMAX; k++)
- name_of_file[k] = ' ';
-
- name_of_file[PATHMAX] = '\0'; /* paranoia 94/Mar/24 */
-
- {
- name_of_file [name_length+1] = '\0';
-
- if (trace_flag)
- {
- sprintf(log_line, " pack_file_name `%s' (%d) ", name_of_file + 1, name_length); /* debugging */
- show_line(log_line, 0);
- }
-
- name_of_file [name_length + 1] = ' ';
- }
-}
-/* Called only from two places tex9.c for format name - specified and default */
-/* for specified format name args are 0, a, b name in buffer[a] --- buffer[b] */
-/* for default args are format_default_length-4, 1, 0 */
-/* sec 0523 */
-void pack_buffered_name_(small_number n, integer a, integer b)
-{
- integer k;
- ASCII_code c;
- integer j;
-
- if (n + b - a + 5 > PATHMAX)
- b = a + PATHMAX - n - 5;
-
- k = 0;
-
-/* This loop kicks in when we want the default format name */
- for (j = 1; j <= n; j++)
- {
- c = xord[TEX_format_default[j]];
- incr(k);
-
- if (k <= PATHMAX)
- name_of_file[k] = xchr[c];
- }
-/* This loop kicks in when we want a specififed format name */
- for (j = a; j <= b; j++)
- {
- c = buffer[j];
- incr(k);
-
- if (k <= PATHMAX)
- name_of_file[k] = xchr[c];
- }
-
-/* This adds the extension from the default format name */
- for (j = format_default_length - 3; j <= format_default_length; j++)
- {
- c = xord[TEX_format_default[j]];
- incr(k);
-
- if (k <= PATHMAX)
- name_of_file[k] = xchr[c];
- }
-
- if (k < PATHMAX)
- name_length = k;
- else
- name_length = PATHMAX - 1;
-
- /* pad it out with spaces ... what for ? */
- for (k = name_length + 1; k <= PATHMAX; k++)
- name_of_file[k]= ' ';
-
- name_of_file[PATHMAX] = '\0'; /* paranoia 94/Mar/24 */
-}
-/* sec 0525 */
-str_number make_name_string (void)
-{
- integer k;
-
-#ifdef ALLOCATESTRING
- if (pool_ptr + name_length > current_pool_size)
- str_pool = realloc_str_pool(increment_pool_size + name_length);
-
- if (str_ptr == current_max_strings)
- str_start = realloc_str_start(increment_max_strings);
-
- if ((pool_ptr + name_length > current_pool_size) || (str_ptr == current_max_strings) || (cur_length > 0))
-#else
- if ((pool_ptr + name_length > pool_size) || (str_ptr == max_strings) || (cur_length > 0))
-#endif
- {
- return '?';
- }
- else
- {
- for (k = 1; k <= name_length; k++)
- append_char(xord[name_of_file[k]]);
-
- return make_string();
- }
-}
-/* sec 0525 */
-str_number a_make_name_string_(alpha_file * f)
-{
- return make_name_string();
-}
-/* sec 0525 */
-str_number b_make_name_string_(byte_file * f)
-{
- return make_name_string();
-}
-/* sec 0525 */
-str_number w_make_name_string_(word_file * f)
-{
- return make_name_string();
-}
-
-/* Used by start_input to scan file name on command line */
-/* Also in tex8.c new_font_, open_or_close_in, and do_extension */
-/* sec 0526 */
-void scan_file_name (void)
-{
- name_in_progress = true;
- begin_name();
-
- do
- {
- get_x_token();
- }
- while (!(cur_cmd != spacer));
-
- quoted_file_name = false;
-
- if (allow_quoted_names)
- {
- if (cur_chr == '"')
- {
- quoted_file_name = 1;
- get_x_token();
- }
- }
-
- while (true)
- {
- if ((cur_cmd > other_char) || (cur_chr > 255))
- {
- back_input();
- goto lab30;
- }
-
- if (!more_name(cur_chr)) /* up to next white space */
- goto lab30;
-
- get_x_token();
- }
-
-lab30:
- end_name();
- name_in_progress = false;
-}
-/* argument is string .fmt, .log, or .dvi */
-/* sec 0529 */
-void pack_job_name_(str_number s)
-{
- cur_area = 335; /* "" */
- cur_ext = s;
- cur_name = job_name;
- pack_file_name(cur_name, cur_area, cur_ext);
-}
-
-/**********************************************************************/
-/* show TEXINPUTS=... or format specific */
-/* only show this if name was not fully qualified ? */
-void show_tex_inputs (void)
-{
- char *s, *t, *v;
-
- s = "TEXINPUTS"; /* default */
-
- if (format_specific)
- {
- s = format_name; /* try specific */
-
- if (grabenv(s) == NULL)
- s = "TEXINPUTS"; /* no format specific */
- }
-
- if (grabenv(s) == NULL)
- s = "TEXINPUT"; /* 94/May/19 */
-
- print_nl(" ");
- print_char(' ');
- print_char('(');
- t = s;
-
- while (*t > '\0')
- print_char(*t++);
-
- print_char('=');
- v = grabenv(s);
-
- if (v != NULL)
- {
- t = v;
-
- while (*t > '\0')
- print_char(*t++);
- }
-
- print_char(')');
-}
-
-/**********************************************************************/
-/* sec 0530 */
-/* s - what can't be found, e - default */
-void prompt_file_name_(char * s, str_number e)
-{
- integer k;
-
- if (interaction == scroll_mode);
-
- if (!strcmp("input file name", s))
- print_err("I can't find file `");
- else
- print_err("I can't write on file `");
-
- print_file_name(cur_name, cur_area, cur_ext);
- print_string("'.");
-
- if (!strcmp("input file name", s))
- {
- if (cur_area == 335) /* "" only if path not specified */
- {
- if (show_texinput_flag)
- show_tex_inputs();
- }
- }
-
- if (e == 785) /* .tex */
- show_context();
-
- print_nl("Please type another ");
- print_string(s);
-
- if (interaction < 2)
- {
- fatal_error("*** (job aborted, file error in nonstop mode)");
- return; // abort_flag set
- }
-
- if (!knuth_flag)
-#ifdef _WINDOWS
- show_line(" (or ^z to exit)", 0);
-#else
- show_line(" (or Ctrl-Z to exit)", 0);
-#endif
- {
- print_string(": ");
- term_input(": ", 0);
- }
-/* should we deal with tilde and space in file name here ??? */
- {
- begin_name();
- k = first;
-
- while ((buffer[k] == ' ') && (k < last))
- incr(k);
-/* *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** */
- quoted_file_name = 0; /* 98/March/15 */
-
- if (allow_quoted_names && k < last) /* check whether quoted name */
- {
- if (buffer[k]== '"')
- {
- quoted_file_name = 1;
- incr(k);
- }
- }
-
- while (true)
- {
- if (k == last)
- goto lab30;
-/* *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** */
-/* convert tilde '~' to pseudo tilde */
- if (pseudo_tilde != 0 && buffer[k]== '~')
- buffer[k] = pseudo_tilde;
-/* convert space ' ' to pseudo space */
- if (pseudo_space != 0 && buffer[k]== ' ')
- buffer[k] = pseudo_space;
-/* *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** */
- if (!more_name(buffer[k]))
- goto lab30;
-
- incr(k);
- }
-lab30:
- end_name();
- }
-
- if (cur_ext == 335) /* "" */
- cur_ext = e; /* use default extension */
-
- pack_file_name(cur_name, cur_area, cur_ext);
-}
-/* sec 0534 */
-void open_log_file (void)
-{
- char old_setting;
- integer k;
- integer l;
- char * months;
-
- old_setting = selector;
-
- if (job_name == 0)
- job_name = 790;
-
- pack_job_name(".log");
-
- while (!a_open_out(log_file))
- {
- selector = term_only;
- prompt_file_name("transcript file name", ".log");
- }
-
- texmf_log_name = a_make_name_string(log_file);
- selector = log_only;
- log_opened = true;
-
- {
- if (want_version)
- {
- stamp_it(log_line);
- strcat(log_line, "\n");
- (void) fputs(log_line, log_file);
- stampcopy(log_line);
- strcat(log_line, "\n");
- (void) fputs(log_line, log_file);
- }
-
- (void) fputs(tex_version, log_file);
- (void) fprintf(log_file, " (%s %s)", application, yandyversion);
-
- if (format_ident > 0)
- slow_print(format_ident);
-
- print_string(" ");
-
- if (civilize_flag)
- print_int(year);
- else
- print_int(day);
-
- print_char(' ');
- months = " JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC";
-
- for (k = 3 * month - 2; k <= 3 * month; k++)
- (void) putc(months[k], log_file);
-
- print_char(' ');
-
- if (civilize_flag)
- print_int(day);
- else
- print_int(year);
-
- print_char(' ');
- print_two(tex_time / 60);
- print_char(':');
- print_two(tex_time % 60);
- }
-
- input_stack[input_ptr] = cur_input;
- print_nl("**");
- l = input_stack[0].limit_field;
-
- if (buffer[l] == end_line_char)
- decr(l);
-
- for (k = 1; k <= l; k++)
- print(buffer[k]);
-
- print_ln();
-
- if (show_fmt_flag)
- {
- if (format_file != NULL)
- {
- fprintf(log_file, "(%s)\n", format_file);
- free(format_file);
- format_file = NULL;
- }
- }
-
- selector = old_setting + 2;
-}
-
-/**************************** start of insertion 98/Feb/7 **************/
-// Attempt to deal with foo.bar.tex given as foo.bar on command line
-// Makes copy of job_name with extension
-
-void more_name_copy(ASCII_code c)
-{
-#ifdef ALLOCATESTRING
- if (pool_ptr + 1 > current_pool_size)
- str_pool = realloc_str_pool (increment_pool_size);
-
- if (pool_ptr + 1 > current_pool_size)
- {
- overflow("pool size", current_pool_size - init_pool_ptr);
- return;
- }
-#else
- if (pool_ptr + 1 > pool_size)
- {
- overflow("pool size", pool_size - init_pool_ptr);
- return;
- }
-#endif
-
- str_pool[pool_ptr] = c;
- incr(pool_ptr);
-}
-
-int end_name_copy(void)
-{
-#ifdef ALLOCATESTRING
- if (str_ptr + 1 > current_max_strings)
- str_start = realloc_str_start(increment_max_strings + 1);
-
- if (str_ptr + 1 > current_max_strings)
- {
- overflow("number of strings", current_max_strings - init_str_ptr);
- return 0;
- }
-#else
- if (str_ptr + 1 > max_strings)
- {
- overflow("number of strings", max_strings - init_str_ptr);
- return 0;
- }
-#endif
-
- return make_string();
-}
-
-void job_name_append (void)
-{
- int k, n;
-
- k = str_start[job_name];
- n = str_start[job_name + 1];
-
- while (k < n)
- more_name_copy(str_pool[k++]);
-
- k = str_start[cur_ext];
- n = str_start[cur_ext + 1];
-
- while (k < n)
- more_name_copy(str_pool[k++]);
-
- job_name = end_name_copy();
-}
-
-/**************************** end of insertion 98/Feb/7 **************/
-/* sec 0537 */
-void start_input(void)
-{
- boolean added_extension = false;
-
- scan_file_name();
- pack_file_name(cur_name, cur_area, cur_ext);
-
- while (true)
- {
- added_extension = false;
- begin_file_reading();
-
- if ((cur_ext != 335) && a_open_in(input_file[cur_input.index_field], TEXINPUTPATH))
- goto lab30;
-
- if ((cur_ext != 785) && (name_length + 5 < PATHMAX))
- {
- name_of_file[name_length + 1] = '.';
- name_of_file[name_length + 2] = 't';
- name_of_file[name_length + 3] = 'e';
- name_of_file[name_length + 4] = 'x';
- name_of_file[name_length + 5] = ' ';
- name_length = name_length + 4;
-
- added_extension = true;
-
- if (a_open_in(input_file[cur_input.index_field], TEXINPUTPATH))
- goto lab30;
-
- name_length = name_length - 4;
- name_of_file[name_length + 1] = ' ';
- added_extension = false;
- }
-
- if ((cur_ext == 335) && a_open_in(input_file[cur_input.index_field], TEXINPUTPATH))
- goto lab30;
-
- end_file_reading();
- prompt_file_name("input file name", ".tex");
- }
-
-lab30:
- cur_input.name_field = a_make_name_string(input_file[cur_input.index_field]);
-
- if (job_name == 0)
- {
- job_name = cur_name;
-
- if (cur_ext != 335 && added_extension)
- job_name_append();
-
- open_log_file();
- }
-
- if (term_offset + length(cur_input.name_field) > max_print_line - 2)
- print_ln();
- else if ((term_offset > 0) || (file_offset > 0))
- print_char(' ');
-
- print_char('(');
- incr(open_parens);
-
- if (open_parens > max_open_parens)
- max_open_parens = open_parens;
-
- slow_print(cur_input.name_field);
-
-#ifndef _WINDOWS
- fflush(stdout);
-#endif
-
- cur_input.state_field = new_line;
-
- {
- line = 1;
-
- if (input_ln(input_file[cur_input.index_field], false));
-
- firm_up_the_line();
-
- if ((end_line_char < 0) || (end_line_char > 255))
- decr(cur_input.limit_field);
- else
- buffer[cur_input.limit_field] = end_line_char;
-
- first = cur_input.limit_field + 1;
- cur_input.loc_field = cur_input.start_field;
- }
-}
-
-/**********************************************************************/
-/* show TEXFONTS=... or format specific */
-/* only show this if name was not fully qualified ? */
-void show_tex_fonts (void)
-{
- char *s, *t, *v, *u;
- int n;
-
- s = "TEXFONTS";
-
- if (encoding_specific)
- {
- u = encoding_name; /* try specific */
-
- if ((t = grabenv(u)) != NULL)
- {
- if (strchr(t, ':') != NULL && sscanf(t, "%d", &n) == 0)
- {
- s = u; /* look here instead of TEXFONTS=... */
- }
- }
- }
-
- print_nl(" ");
- print_char(' ');
- print_char('(');
- t = s;
-
- while (*t > '\0')
- print_char(*t++);
-
- print_char('=');
- v = grabenv(s);
-
- if (v != NULL)
- {
- t = v;
-
- while (*t > '\0')
- print_char(*t++);
- }
-
- print_char(')');
-}
-/* sec 0560 */
-internal_font_number read_font_info_(halfword u, str_number nom, str_number aire, scaled s)
-{
- font_index k;
- boolean file_opened;
- halfword lf, lh, nw, nh, nd, ni, nl, nk, ne, np;
- int bc, ec;
- internal_font_number f;
- internal_font_number g;
- eight_bits a, b, c, d;
- four_quarters qw;
- scaled sw;
- integer bch_label;
- short bchar;
- scaled z;
- integer alpha;
- char beta;
-
- g = 0;
- file_opened = false;
- pack_file_name(nom, aire, 805); /* .tfm */
-
- if (!b_open_in(tfm_file))
- {
- goto lab11;
- }
-
- file_opened = true;
-
- {
- read_sixteen(lf);
- tfm_temp = getc(tfm_file);
- read_sixteen(lh);
- tfm_temp = getc(tfm_file);
- read_sixteen(bc);
- tfm_temp = getc(tfm_file);
- read_sixteen(ec);
-
- if ((bc > ec + 1) || (ec > 255))
- goto lab11;
-
- if (bc > 255)
- {
- bc = 1;
- ec = 0;
- }
-
- tfm_temp = getc(tfm_file);
- read_sixteen(nw);
- tfm_temp = getc(tfm_file);
- read_sixteen(nh);
- tfm_temp = getc(tfm_file);
- read_sixteen(nd);
- tfm_temp = getc(tfm_file);
- read_sixteen(ni);
- tfm_temp = getc(tfm_file);
- read_sixteen(nl);
- tfm_temp = getc(tfm_file);
- read_sixteen(nk);
- tfm_temp = getc(tfm_file);
- read_sixteen(ne);
- tfm_temp = getc(tfm_file);
- read_sixteen(np);
-
- if (lf != 6 + lh + (ec - bc + 1) + nw + nh + nd + ni + nl + nk + ne + np)
- goto lab11;
-
- if ((nw == 0) || (nh == 0) || (nd == 0) || (ni == 0))
- goto lab11;
- }
-
- lf = lf - 6 - lh;
-
- if (np < 7)
- lf = lf + 7 - np;
-
-#ifdef ALLOCATEFONT
- if ((fmem_ptr + lf > current_font_mem_size))
- font_info = realloc_font_info (increment_font_mem_size + lf);
-
- if ((font_ptr == font_max) || (fmem_ptr + lf > current_font_mem_size))
-#else
- if ((font_ptr == font_max) || (fmem_ptr + lf > font_mem_size))
-#endif
- {
- if (trace_flag)
- {
- sprintf(log_line, "font_ptr %d font_max %d fmem_ptr %d lf %d font_mem_size %d\n",
- font_ptr, font_max, fmem_ptr, lf, font_mem_size);
- show_line(log_line, 0);
- }
-
- print_err("Font ");
- sprint_cs(u);
- print_char('=');
- print_file_name(nom, aire, 335); /* "" */
-
- if (s >= 0)
- {
- print_string(" at ");
- print_scaled(s);
- print_string("pt");
- }
- else if (s != -1000)
- {
- print_string(" scaled ");
- print_int(- (integer) s);
- }
-
- print_string(" not loaded: Not enough room left");
- help4("I'm afraid I won't be able to make use of this font,",
- "because my memory for character-size data is too small.",
- "If you're really stuck, ask a wizard to enlarge me.",
- "Or maybe try `I\\font<same font id>=<name of loaded font>'.");
- error();
- goto lab30;
- }
-
- f = font_ptr + 1;
- char_base[f] = fmem_ptr - bc;
- width_base[f] = char_base[f] + ec + 1;
- height_base[f] = width_base[f] + nw;
- depth_base[f] = height_base[f] + nh;
- italic_base[f] = depth_base[f] + nd;
- lig_kern_base[f] = italic_base[f] + ni;
- kern_base[f] = lig_kern_base[f] + nl - 256 * (128);
- exten_base[f] = kern_base[f] + 256 * (128) + nk;
- param_base[f] = exten_base[f] + ne;
-
- {
- if (lh < 2)
- goto lab11;
-
- store_four_quarters(font_check[f]);
- tfm_temp = getc(tfm_file);
- read_sixteen(z);
- tfm_temp = getc(tfm_file);
- z = z * 256 + tfm_temp;
- tfm_temp = getc(tfm_file);
- z =(z * 16) + (tfm_temp / 16);
-
- if (z < 65536L)
- goto lab11;
-
- while (lh > 2)
- {
- tfm_temp = getc(tfm_file);
- tfm_temp = getc(tfm_file);
- tfm_temp = getc(tfm_file);
- tfm_temp = getc(tfm_file);
- decr(lh);
- }
-
- font_dsize[f] = z;
-
- if (s != -1000)
- if (s >= 0)
- z = s;
- else
- z = xn_over_d(z, - (integer) s, 1000);
-
- font_size[f] = z;
- }
-
- for (k = fmem_ptr; k <= width_base[f] - 1; k++)
- {
- store_four_quarters(font_info[k].qqqq);
-
- if ((a >= nw) || (b / 16 >= nh) || (b % 16 >= nd) || (c / 4 >= ni))
- goto lab11;
-
- switch (c % 4)
- {
- case lig_tag:
- if (d >= nl)
- goto lab11;
- break;
-
- case ext_tag:
- if (d >= ne)
- goto lab11;
- break;
-
- case list_tag:
- {
- {
- if ((d < bc) || (d > ec))
- goto lab11;
- }
-
- while (d < k + bc - fmem_ptr)
- {
- qw = char_info(f, d);
-
- if (char_tag(qw) != list_tag)
- goto lab45;
-
- d = rem_byte(qw);
- }
-
- if (d == k + bc - fmem_ptr)
- goto lab11;
-lab45:;
- }
- break;
-
- default:
- break;
- }
- }
-
- {
- {
- alpha = 16;
-
- while (z >= 8388608L) /* 2^23 */
- {
- z = z / 2;
- alpha = alpha + alpha;
- }
-
- beta = (char) (256 / alpha);
- alpha = alpha * z;
- }
-
- for (k = width_base[f]; k <= lig_kern_base[f] - 1; k++)
- {
- tfm_temp = getc(tfm_file);
- a = tfm_temp;
- tfm_temp = getc(tfm_file);
- b = tfm_temp;
- tfm_temp = getc(tfm_file);
- c = tfm_temp;
- tfm_temp = getc(tfm_file);
- d = tfm_temp;
- sw = (((((d * z) / 256) + (c * z)) / 256) + (b * z)) / beta;
-
- if (a == 0)
- font_info[k].cint = sw;
- else if (a == 255)
- font_info[k].cint = sw - alpha;
- else
- goto lab11;
- }
-
- if (font_info[width_base[f]].cint != 0)
- goto lab11;
-
- if (font_info[height_base[f]].cint != 0)
- goto lab11;
-
- if (font_info[depth_base[f]].cint != 0)
- goto lab11;
-
- if (font_info[italic_base[f]].cint != 0)
- goto lab11;
- }
-
- bch_label = 32767; /* '77777 */
- bchar = 256;
-
- if (nl > 0)
- {
- for (k = lig_kern_base[f]; k <= kern_base[f] + 256 * (128) - 1; k++)
- {
- store_four_quarters(font_info[k].qqqq);
-
- if (a > 128)
- {
- if (256 * c + d >= nl)
- goto lab11; /* error in TFM, abort */
-
- if (a == 255)
- if (k == lig_kern_base[f])
- bchar = b;
- }
- else
- {
- if (b != bchar)
- {
- {
- if ((b < bc) || (b > ec)) /* check-existence(b) */
- goto lab11; /* error in TFM, abort */
- }
-
- qw = font_info[char_base[f] + b].qqqq;
-
- if (!(qw.b0 > 0))
- goto lab11; /* error in TFM, abort */
- }
-
- if (c < 128)
- {
- {
- if ((d < bc) || (d > ec)) /* check-existence(d) */
- goto lab11; /* error in TFM, abort */
- }
-
- qw = font_info[char_base[f] + d].qqqq;
-
- if (!(qw.b0 > 0))
- goto lab11; /* error in TFM, abort */
- }
- else if (256 * (c - 128) + d >= nk)
- goto lab11; /* error in TFM, abort */
-
- if (a < 128)
- if (k - lig_kern_base[f] + a + 1 >= nl)
- goto lab11; /* error in TFM, abort */
- }
- }
-
- if (a == 255)
- bch_label = 256 * c + d;
- }
-
- for (k = kern_base[f] + 256 * (128); k <= exten_base[f] - 1; k++)
- {
- tfm_temp = getc(tfm_file);
- a = tfm_temp;
- tfm_temp = getc(tfm_file);
- b = tfm_temp;
- tfm_temp = getc(tfm_file);
- c = tfm_temp;
- tfm_temp = getc(tfm_file);
- d = tfm_temp;
- sw = (((((d * z) / 256) + (c * z)) / 256) + (b * z)) / beta;
-
- if (a == 0)
- font_info[k].cint = sw;
- else if (a == 255)
- font_info[k].cint = sw - alpha;
- else goto lab11;
- }
-
- /* read extensible character recipes */
- for (k = exten_base[f]; k <= param_base[f] - 1; k++)
- {
- store_four_quarters(font_info[k].qqqq);
-
- if (a != 0)
- {
- {
- if ((a < bc) || (a > ec))
- goto lab11;
- }
-
- qw = font_info[char_base[f] + a].qqqq;
-
- if (!(qw.b0 > 0))
- goto lab11;
- }
-
- if (b != 0)
- {
- {
- if ((b < bc) || (b > ec))
- goto lab11;
- }
-
- qw = font_info[char_base[f] + b].qqqq;
-
- if (!(qw.b0 > 0))
- goto lab11;
- }
-
- if (c != 0)
- {
- {
- if ((c < bc) || (c > ec))
- goto lab11;
- }
-
- qw = font_info[char_base[f] + c].qqqq;
-
- if (!(qw.b0 > 0))
- goto lab11;
- }
-
- {
- {
- if ((d < bc) || (d > ec))
- goto lab11;
- }
-
- qw = font_info[char_base[f] + d].qqqq;
-
- if (!(qw.b0 > 0))
- goto lab11;
- }
- }
-
- {
- for (k = 1; k <= np; k++)
- if (k == 1)
- {
- tfm_temp = getc(tfm_file);
- sw = tfm_temp;
-
- if (sw > 127)
- sw = sw - 256;
-
- tfm_temp = getc(tfm_file);
- sw = sw * 256 + tfm_temp;
- tfm_temp = getc(tfm_file);
- sw = sw * 256 + tfm_temp;
- tfm_temp = getc(tfm_file);
- font_info[param_base[f]].cint = (sw * 16) + (tfm_temp / 16);
- }
- else
- {
- tfm_temp = getc(tfm_file);
- a = tfm_temp;
- tfm_temp = getc(tfm_file);
- b = tfm_temp;
- tfm_temp = getc(tfm_file);
- c = tfm_temp;
- tfm_temp = getc(tfm_file);
- d = tfm_temp;
- sw = (((((d * z) / 256) + (c * z)) / 256) + (b * z)) / beta;
-
- if (a == 0)
- font_info[param_base[f] + k - 1].cint = sw;
- else if (a == 255)
- font_info[param_base[f] + k - 1].cint = sw - alpha;
- else goto lab11;
- }
-
- if (feof(tfm_file))
- goto lab11;
-
- for (k = np + 1; k <= 7; k++)
- font_info[param_base[f] + k - 1].cint = 0;
- }
-
- if (np >= 7)
- font_params[f] = np;
- else
- font_params[f] = 7;
-
- hyphen_char[f] = default_hyphen_char;
- skew_char[f] = default_skew_char;
-
- if (bch_label < nl)
- bchar_label[f] = bch_label + lig_kern_base[f];
- else
- bchar_label[f] = non_address;
-
- font_bchar[f] = bchar;
- font_false_bchar[f] = bchar;
-
- if (bchar <= ec)
- if (bchar >= bc)
- {
- qw = font_info[char_base[f] + bchar].qqqq;
-
- if ((qw.b0 > 0))
- font_false_bchar[f] = 256;
- }
-
- font_name[f] = nom;
- font_area[f] = aire;
- font_bc[f] = bc;
- font_ec[f] = ec;
- font_glue[f] = 0;
- char_base[f] = char_base[f];
- width_base[f] = width_base[f];
- lig_kern_base[f] = lig_kern_base[f];
- kern_base[f] = kern_base[f];
- exten_base[f] = exten_base[f];
- decr(param_base[f]);
- fmem_ptr = fmem_ptr + lf;
- font_ptr = f;
- g = f;
- goto lab30;
-
-lab11:
- print_err("Font ");
- sprint_cs(u);
- print_char('=');
- print_file_name(nom, aire, 335);
-
- if (s >= 0)
- {
- print_string(" at ");
- print_scaled(s);
- print_string("pt");
- }
- else if (s != -1000)
- {
- print_string("scaled");
- print_int(- (integer) s);
- }
-
- if (file_opened)
- print_string(" not loadable: Bad metric (TFM) file");
- else
- print_string(" not loadable: Metric (TFM) file not found");
-
- if (aire == 335)
- {
- if (show_texinput_flag)
- show_tex_fonts();
- }
-
- help5("I wasn't able to read the size data for this font,",
- "so I will ignore the font specification.",
- "[Wizards can fix TFM files using TFtoPL/PLtoTF.]",
- "You might try inserting a different font spec;",
- "e.g., type `I\\font<same font id>=<substitute font name>'.");
- error();
-
-lab30:
- if (file_opened)
- b_close(tfm_file);
-
- return g;
+/* Copyright 2014 Clerk Ma\r
+\r
+ This program is free software; you can redistribute it and/or modify\r
+ it under the terms of the GNU General Public License as published by\r
+ the Free Software Foundation; either version 2 of the License, or\r
+ (at your option) any later version.\r
+\r
+ This program is distributed in the hope that it will be useful, but\r
+ WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
+ General Public License for more details.\r
+\r
+ You should have received a copy of the GNU General Public License\r
+ along with this program; if not, write to the Free Software\r
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA\r
+ 02110-1301 USA. */\r
+\r
+#define EXTERN extern\r
+\r
+#include "yandytex.h"\r
+\r
+/* sec 0440 */\r
+void scan_int (void)\r
+{\r
+ boolean negative;\r
+ integer m;\r
+ small_number d;\r
+ boolean vacuous;\r
+ boolean OK_so_far;\r
+\r
+ radix = 0;\r
+ OK_so_far = true;\r
+ negative = false;\r
+\r
+ do\r
+ {\r
+ do \r
+ {\r
+ get_x_token();\r
+ }\r
+ while (!(cur_cmd != spacer));\r
+\r
+ if (cur_tok == other_token + '-')\r
+ {\r
+ negative = !negative;\r
+ cur_tok = other_token + '+';\r
+ }\r
+ }\r
+ while (!(cur_tok != other_token + '+'));\r
+\r
+ if (cur_tok == alpha_token)\r
+ {\r
+ get_token();\r
+\r
+ if (cur_tok < cs_token_flag)\r
+ {\r
+ cur_val = cur_chr;\r
+\r
+ if (cur_cmd <= right_brace)\r
+ if (cur_cmd == right_brace)\r
+ incr(align_state);\r
+ else\r
+ decr(align_state);\r
+ }\r
+ else if (cur_tok < cs_token_flag + single_base)\r
+ cur_val = cur_tok - cs_token_flag - active_base;\r
+ else\r
+ cur_val = cur_tok - cs_token_flag - single_base;\r
+\r
+ if (cur_val > 255)\r
+ {\r
+ print_err("Improper alphabetic constant");\r
+ help2("A one-character control sequence belongs after a ` mark.",\r
+ "So I'm essentially inserting \\0 here.");\r
+ cur_val = '0';\r
+ back_error();\r
+ }\r
+ else\r
+ {\r
+ get_x_token();\r
+\r
+ if (cur_cmd != spacer)\r
+ back_input();\r
+ }\r
+ }\r
+ else if ((cur_cmd >= min_internal) && (cur_cmd <= max_internal))\r
+ {\r
+ scan_something_internal(int_val, false);\r
+ }\r
+ else\r
+ {\r
+ radix = 10;\r
+ m = 214748364L; /* 7FFFFFFF hex */\r
+\r
+ if (cur_tok == octal_token)\r
+ {\r
+ radix = 8;\r
+ m = 268435456L; /* 2^28 */\r
+ get_x_token();\r
+ }\r
+ else if (cur_tok == hex_token)\r
+ {\r
+ radix = 16;\r
+ m = 134217728L; /* 2^27 8000000 hex */\r
+ get_x_token();\r
+ }\r
+\r
+ vacuous = true;\r
+ cur_val = 0;\r
+\r
+ while (true)\r
+ {\r
+ if ((cur_tok < zero_token + radix) && (cur_tok >= zero_token) && (cur_tok <= zero_token + 9))\r
+ d = cur_tok - zero_token;\r
+ else if (radix == 16)\r
+ if ((cur_tok <= A_token + 5) && (cur_tok >= A_token))\r
+ d = cur_tok - A_token + 10;\r
+ else if ((cur_tok <= other_A_token + 5) && (cur_tok >= other_A_token))\r
+ d = cur_tok - other_A_token;\r
+ else\r
+ goto done;\r
+ else\r
+ goto done;\r
+\r
+ vacuous = false;\r
+\r
+ if ((cur_val >= m) && ((cur_val > m) || (d > 7) || (radix != 10)))\r
+ {\r
+ if (OK_so_far)\r
+ {\r
+ print_err("Number too big");\r
+ help2("I can only go up to 2147483647='17777777777=\"7FFFFFFF,",\r
+ "so I'm using that number instead of yours.");\r
+ error();\r
+ cur_val = 2147483647L; /* 7FFFFFFF hex */\r
+ OK_so_far = false;\r
+ }\r
+ }\r
+ else\r
+ cur_val = cur_val * radix + d;\r
+\r
+ get_x_token();\r
+ }\r
+\r
+done:\r
+ if (vacuous)\r
+ {\r
+ print_err("Missing number, treated as zero");\r
+ help3("A number should have been here; I inserted `0'.",\r
+ "(If you can't figure out why I needed to see a number,",\r
+ "look up `weird error' in the index to The TeXbook.)");\r
+ back_error();\r
+ } \r
+ else if (cur_cmd != spacer)\r
+ back_input();\r
+ }\r
+\r
+ if (negative)\r
+ cur_val = - (integer) cur_val;\r
+}\r
+/* sec 0448 */\r
+void scan_dimen (boolean mu, boolean inf, boolean shortcut)\r
+{\r
+ boolean negative;\r
+ integer f;\r
+ integer num, denom;\r
+ small_number k, kk;\r
+ halfword p, q;\r
+ scaled v;\r
+ integer save_cur_val;\r
+\r
+ f = 0;\r
+ arith_error = false;\r
+ cur_order = normal;\r
+ negative = false;\r
+\r
+ if (!shortcut)\r
+ {\r
+ negative = false;\r
+\r
+ do\r
+ {\r
+ do\r
+ {\r
+ get_x_token();\r
+ }\r
+ while (!(cur_cmd != spacer));\r
+\r
+ if (cur_tok == other_token + '-')\r
+ {\r
+ negative = ! negative;\r
+ cur_tok = other_token + '+';\r
+ }\r
+ }\r
+ while (!(cur_tok != other_token + '+'));\r
+\r
+ if ((cur_cmd >= min_internal) && (cur_cmd <= max_internal))\r
+ {\r
+ if (mu)\r
+ {\r
+ scan_something_internal(mu_val, false);\r
+\r
+ if (cur_val_level >= glue_val)\r
+ {\r
+ v = width(cur_val);\r
+ delete_glue_ref(cur_val);\r
+ cur_val = v;\r
+ }\r
+\r
+ if (cur_val_level == mu_val)\r
+ goto attach_sign;\r
+\r
+ if (cur_val_level != int_val)\r
+ mu_error();\r
+ }\r
+ else\r
+ {\r
+ scan_something_internal(dimen_val, false);\r
+\r
+ if (cur_val_level == dimen_val)\r
+ goto attach_sign;\r
+ }\r
+ }\r
+ else\r
+ {\r
+ back_input();\r
+\r
+ if (cur_tok == continental_point_token)\r
+ cur_tok = point_token;\r
+\r
+ if (cur_tok != point_token)\r
+ {\r
+ scan_int();\r
+ }\r
+ else\r
+ {\r
+ radix = 10;\r
+ cur_val = 0;\r
+ }\r
+\r
+ if (cur_tok == continental_point_token)\r
+ cur_tok = point_token;\r
+\r
+ if ((radix == 10) && (cur_tok == point_token))\r
+ {\r
+ k = 0;\r
+ p = 0;\r
+ get_token();\r
+\r
+ while (true)\r
+ {\r
+ get_x_token();\r
+\r
+ if ((cur_tok > zero_token + 9) || (cur_tok < zero_token))\r
+ goto done1;\r
+\r
+ if (k < 17)\r
+ {\r
+ q = get_avail();\r
+ link(q) = p;\r
+ info(q) = cur_tok - zero_token;\r
+ p = q;\r
+ incr(k);\r
+ }\r
+ }\r
+\r
+done1:\r
+ for (kk = k; kk >= 1; kk--)\r
+ {\r
+ dig[kk - 1] = info(p);\r
+ q = p;\r
+ p = link(p);\r
+ free_avail(q);\r
+ }\r
+\r
+ f = round_decimals(k);\r
+\r
+ if (cur_cmd != spacer)\r
+ back_input();\r
+ }\r
+ }\r
+ }\r
+\r
+ if (cur_val < 0)\r
+ {\r
+ negative = !negative;\r
+ cur_val = - (integer) cur_val;\r
+ }\r
+\r
+ if (inf)\r
+ {\r
+ if (scan_keyword("fil"))\r
+ {\r
+ cur_order = fil;\r
+\r
+ while (scan_keyword("l"))\r
+ {\r
+ if (cur_order == filll)\r
+ {\r
+ print_err("Illegal unit of measure (");\r
+ prints("replaced by filll)");\r
+ help1("I dddon't go any higher than filll.");\r
+ error();\r
+ }\r
+ else\r
+ incr(cur_order);\r
+ }\r
+\r
+ goto attach_fraction;\r
+ }\r
+ }\r
+\r
+ save_cur_val = cur_val;\r
+\r
+ do\r
+ {\r
+ get_x_token();\r
+ }\r
+ while (!(cur_cmd != spacer));\r
+\r
+ if ((cur_cmd < min_internal) || (cur_cmd > max_internal))\r
+ back_input();\r
+ else\r
+ {\r
+ if (mu)\r
+ {\r
+ scan_something_internal(mu_val, false);\r
+\r
+ if (cur_val_level >= glue_val)\r
+ {\r
+ v = width(cur_val);\r
+ delete_glue_ref(cur_val);\r
+ cur_val = v;\r
+ }\r
+\r
+ if (cur_val_level != mu_val)\r
+ {\r
+ mu_error();\r
+ }\r
+ }\r
+ else\r
+ {\r
+ scan_something_internal(dimen_val, false);\r
+ }\r
+\r
+ v = cur_val;\r
+ goto found;\r
+ }\r
+\r
+ if (mu)\r
+ goto not_found;\r
+\r
+ if (scan_keyword("em"))\r
+ v = quad(cur_font);\r
+ else if (scan_keyword("ex"))\r
+ v = x_height(cur_font);\r
+ else\r
+ goto not_found;\r
+\r
+ {\r
+ get_x_token();\r
+\r
+ if (cur_cmd != spacer)\r
+ back_input();\r
+ }\r
+\r
+found:\r
+ cur_val = nx_plus_y(save_cur_val, v, xn_over_d(v, f, 65536L));\r
+ goto attach_sign;\r
+\r
+not_found:\r
+ if (mu)\r
+ {\r
+ if (scan_keyword("mu"))\r
+ goto attach_fraction;\r
+ else\r
+ {\r
+ print_err("Illegal unit of measure (");\r
+ prints("mu inserted)");\r
+ help4("The unit of measurement in math glue must be mu.",\r
+ "To recover gracefully from this error, it's best to",\r
+ "delete the erroneous units; e.g., type `2' to delete",\r
+ "two letters. (See Chapter 27 of The TeXbook.)");\r
+ error();\r
+ goto attach_fraction;\r
+ }\r
+ }\r
+\r
+ if (scan_keyword("true"))\r
+ {\r
+ prepare_mag();\r
+\r
+ if (mag != 1000)\r
+ {\r
+ cur_val = xn_over_d(cur_val, 1000, mag);\r
+ f = (1000 * f + 65536L * tex_remainder) / mag;\r
+ cur_val = cur_val + (f / 65536L);\r
+ f = f % 65536L;\r
+ }\r
+ }\r
+\r
+ if (scan_keyword("pt"))\r
+ goto attach_fraction;\r
+\r
+ if (scan_keyword("in"))\r
+ set_conversion(7227, 100);\r
+ else if (scan_keyword("pc"))\r
+ set_conversion(12, 1);\r
+ else if (scan_keyword("cm"))\r
+ set_conversion(7227, 254);\r
+ else if (scan_keyword("mm"))\r
+ set_conversion(7227, 2540);\r
+ else if (scan_keyword("bp"))\r
+ set_conversion(7227, 7200);\r
+ else if (scan_keyword("dd"))\r
+ set_conversion(1238, 1157);\r
+ else if (scan_keyword("cc"))\r
+ set_conversion(14856, 1157);\r
+ else if (scan_keyword("Q"))\r
+ set_conversion(7227, 10160);\r
+ else if (scan_keyword("H"))\r
+ set_conversion(7227, 10160);\r
+ else if (scan_keyword("twip"))\r
+ set_conversion(1, 20);\r
+ else if (scan_keyword("sp"))\r
+ goto done;\r
+ else\r
+ {\r
+ print_err("Illegal unit of measure (");\r
+ prints("pt inserted)");\r
+ help6("Dimensions can be in units of em, ex, in, pt, pc,",\r
+ "cm, mm, dd, cc, bp, or sp; but yours is a new one!",\r
+ "I'll assume that you meant to say pt, for printer's points.",\r
+ "To recover gracefully from this error, it's best to",\r
+ "delete the erroneous units; e.g., type `2' to delete",\r
+ "two letters. (See Chapter 27 of The TeXbook.)");\r
+ error();\r
+ goto done2;\r
+ }\r
+\r
+ cur_val = xn_over_d(cur_val, num, denom);\r
+ f = (num * f + 65536L * tex_remainder) / denom;\r
+ cur_val = cur_val +(f / 65536L);\r
+ f = f % 65536L;\r
+\r
+done2:\r
+attach_fraction:\r
+ if (cur_val >= 16384) /* 2^14 */\r
+ arith_error = true;\r
+ else\r
+ cur_val = cur_val * unity + f;\r
+\r
+done:\r
+ {\r
+ get_x_token();\r
+\r
+ if (cur_cmd != spacer)\r
+ back_input();\r
+ }\r
+\r
+attach_sign:\r
+ if (arith_error || (abs(cur_val) >= 1073741824L)) /* 2^30 */\r
+ {\r
+ print_err("Dimension too large");\r
+ help2("I can't work with sizes bigger than about 19 feet.",\r
+ "Continue and I'll use the largest value I can.");\r
+ error();\r
+ cur_val = max_dimen;\r
+ arith_error = false;\r
+ }\r
+\r
+ if (negative)\r
+ cur_val = - (integer) cur_val;\r
+}\r
+/* sec 0461 */\r
+void scan_glue (small_number level)\r
+{\r
+ boolean negative;\r
+ pointer q;\r
+ boolean mu;\r
+\r
+ mu = (level == mu_val);\r
+ negative = false;\r
+\r
+ do\r
+ {\r
+ do\r
+ {\r
+ get_x_token();\r
+ }\r
+ while (!(cur_cmd != spacer));\r
+\r
+ if (cur_tok == other_token + '-')\r
+ {\r
+ negative = !negative;\r
+ cur_tok = other_token + '+';\r
+ }\r
+ }\r
+ while (!(cur_tok != other_token + '+'));\r
+\r
+ if ((cur_cmd >= min_internal) && (cur_cmd <= max_internal))\r
+ {\r
+ scan_something_internal(level, negative);\r
+\r
+ if (cur_val_level >= glue_val)\r
+ {\r
+ if (cur_val_level != level)\r
+ mu_error();\r
+\r
+ return;\r
+ }\r
+\r
+ if (cur_val_level == int_val)\r
+ scan_dimen(mu, false, true);\r
+ else if (level == mu_val)\r
+ mu_error();\r
+ }\r
+ else\r
+ {\r
+ back_input();\r
+ scan_dimen(mu, false, false);\r
+\r
+ if (negative)\r
+ cur_val = - (integer) cur_val;\r
+ }\r
+\r
+ q = new_spec(zero_glue);\r
+ width(q) = cur_val;\r
+\r
+ if (scan_keyword("plus"))\r
+ {\r
+ scan_dimen(mu, true, false);\r
+ stretch(q) = cur_val;\r
+ stretch_order(q) = cur_order;\r
+ }\r
+\r
+ if (scan_keyword("minus"))\r
+ {\r
+ scan_dimen(mu, true, false);\r
+ shrink(q) = cur_val;\r
+ shrink_order(q) = cur_order;\r
+ }\r
+\r
+ cur_val = q;\r
+}\r
+/* sec 0463 */\r
+pointer scan_rule_spec (void)\r
+{\r
+ pointer q;\r
+\r
+ q = new_rule();\r
+\r
+ if (cur_cmd == vrule)\r
+ width(q) = default_rule;\r
+ else\r
+ {\r
+ height(q) = default_rule;\r
+ depth(q) = 0;\r
+ }\r
+\r
+reswitch:\r
+\r
+ if (scan_keyword("width"))\r
+ {\r
+ scan_dimen(false, false, false);\r
+ width(q) = cur_val;\r
+ goto reswitch;\r
+ }\r
+\r
+ if (scan_keyword("height"))\r
+ {\r
+ scan_dimen(false, false, false);\r
+ height(q) = cur_val;\r
+ goto reswitch;\r
+ }\r
+\r
+ if (scan_keyword("depth"))\r
+ {\r
+ scan_dimen(false, false, false);\r
+ depth(q) = cur_val;\r
+ goto reswitch;\r
+ }\r
+\r
+ return q;\r
+}\r
+/* sec 0464 */\r
+pointer str_toks (pool_pointer b)\r
+{\r
+ pointer p;\r
+ pointer q;\r
+ halfword t;\r
+ pool_pointer k;\r
+\r
+ str_room(1);\r
+ p = temp_head;\r
+ link(p) = 0;\r
+ k = b;\r
+\r
+ while (k < pool_ptr)\r
+ {\r
+ t = str_pool[k];\r
+\r
+ if (t == ' ')\r
+ t = space_token;\r
+ else\r
+ t = other_token + t;\r
+\r
+ fast_store_new_token(t);\r
+ incr(k);\r
+ }\r
+\r
+ pool_ptr = b;\r
+\r
+ return p;\r
+}\r
+/* sec 0465 */\r
+pointer the_toks (void)\r
+{\r
+ char old_setting;\r
+ pointer p, q, r;\r
+ pool_pointer b;\r
+\r
+ get_x_token();\r
+ scan_something_internal(tok_val, false);\r
+\r
+ if (cur_val_level >= ident_val)\r
+ {\r
+ p = temp_head;\r
+ link(p) = 0;\r
+\r
+ if (cur_val_level == ident_val)\r
+ store_new_token(cs_token_flag + cur_val);\r
+ else if (cur_val != 0)\r
+ {\r
+ r = link(cur_val);\r
+\r
+ while (r != 0)\r
+ {\r
+ fast_store_new_token(info(r));\r
+ r = link(r);\r
+ }\r
+ }\r
+\r
+ return p;\r
+ }\r
+ else\r
+ {\r
+ old_setting = selector;\r
+ selector = new_string;\r
+ b = pool_ptr;\r
+\r
+ switch (cur_val_level)\r
+ {\r
+ case int_val:\r
+ print_int(cur_val);\r
+ break;\r
+\r
+ case dimen_val:\r
+ {\r
+ print_scaled(cur_val);\r
+ prints("pt");\r
+ }\r
+ break;\r
+\r
+ case glue_val:\r
+ {\r
+ print_spec(cur_val, "pt");\r
+ delete_glue_ref(cur_val);\r
+ }\r
+ break;\r
+\r
+ case mu_val:\r
+ {\r
+ print_spec(cur_val, "mu");\r
+ delete_glue_ref(cur_val);\r
+ }\r
+ break;\r
+ }\r
+\r
+ selector = old_setting;\r
+ return str_toks(b);\r
+ }\r
+}\r
+/* sec 0467 */\r
+void ins_the_toks (void) \r
+{ \r
+ link(garbage) = the_toks();\r
+ ins_list(link(temp_head));\r
+}\r
+/* sec 0470 */\r
+void conv_toks (void)\r
+{\r
+ char old_setting;\r
+ char c;\r
+ small_number save_scanner_status;\r
+ pool_pointer b;\r
+\r
+ c = cur_chr;\r
+\r
+ switch (c)\r
+ {\r
+ case number_code:\r
+ case roman_numeral_code:\r
+ scan_int();\r
+ break;\r
+\r
+ case string_code:\r
+ case meaning_code:\r
+ save_scanner_status = scanner_status;\r
+ scanner_status = 0;\r
+ get_token();\r
+ scanner_status = save_scanner_status;\r
+ break;\r
+\r
+ case font_name_code:\r
+ scan_font_ident();\r
+ break;\r
+\r
+ case job_name_code:\r
+ if (job_name == 0)\r
+ open_log_file();\r
+ break;\r
+ }\r
+\r
+ old_setting = selector;\r
+ selector = new_string;\r
+ b = pool_ptr;\r
+\r
+ switch (c)\r
+ {\r
+ case number_code:\r
+ print_int(cur_val);\r
+ break;\r
+\r
+ case roman_numeral_code:\r
+ print_roman_int(cur_val);\r
+ break;\r
+\r
+ case string_code:\r
+ if (cur_cs != 0)\r
+ sprint_cs(cur_cs);\r
+ else\r
+ print_char(cur_chr);\r
+ break;\r
+\r
+ case meaning_code:\r
+ print_meaning();\r
+ break;\r
+\r
+ case font_name_code:\r
+ print(font_name[cur_val]);\r
+\r
+ if (font_size[cur_val] != font_dsize[cur_val])\r
+ {\r
+ prints(" at ");\r
+ print_scaled(font_size[cur_val]);\r
+ prints("pt");\r
+ }\r
+ break;\r
+\r
+ case job_name_code:\r
+ print(job_name);\r
+ break;\r
+ }\r
+\r
+ selector = old_setting;\r
+ link(garbage) = str_toks(b);\r
+ begin_token_list(link(temp_head), 4);\r
+}\r
+/* sec 0473 */\r
+pointer scan_toks (boolean macro_def, boolean xpand)\r
+{\r
+ halfword t;\r
+ halfword s;\r
+ pointer p;\r
+ pointer q;\r
+ halfword unbalance;\r
+ halfword hash_brace;\r
+\r
+ if (macro_def)\r
+ scanner_status = defining;\r
+ else\r
+ scanner_status = absorbing;\r
+\r
+ warning_index = cur_cs;\r
+ def_ref = get_avail();\r
+ token_ref_count(def_ref) = 0;\r
+ p = def_ref;\r
+ hash_brace = 0;\r
+ t = zero_token;\r
+\r
+ if (macro_def)\r
+ {\r
+ while (true)\r
+ {\r
+ get_token();\r
+\r
+ if (cur_tok < right_brace_limit)\r
+ goto done1;\r
+\r
+ if (cur_cmd == mac_param)\r
+ {\r
+ s = match_token + cur_chr;\r
+ get_token();\r
+\r
+ if (cur_cmd == left_brace)\r
+ {\r
+ hash_brace = cur_tok;\r
+ store_new_token(cur_tok);\r
+ store_new_token(end_match_token);\r
+ goto done;\r
+ }\r
+\r
+ if (t == zero_token + 9)\r
+ {\r
+ print_err("You already have nine parameters");\r
+ help1("I'm going to ignore the # sign you just used.");\r
+ error();\r
+ }\r
+ else\r
+ {\r
+ incr(t);\r
+\r
+ if (cur_tok != t)\r
+ {\r
+ print_err("Parameters must be numbered consecutively");\r
+ help2("I've inserted the digit you should have used after the #.",\r
+ "Type `1' to delete what you did use.");\r
+ back_error();\r
+ }\r
+\r
+ cur_tok = s;\r
+ }\r
+ }\r
+\r
+ store_new_token(cur_tok);\r
+ }\r
+\r
+done1:\r
+ store_new_token(end_match_token);\r
+\r
+ if (cur_cmd == right_brace)\r
+ {\r
+ print_err("Missing { inserted");\r
+ incr(align_state);\r
+ help2("Where was the left brace? You said something like `\\def\\a}',",\r
+ "which I'm going to interpret as `\\def\\a{}'.");\r
+ error();\r
+ goto found;\r
+ }\r
+done:;\r
+ }\r
+ else\r
+ {\r
+ scan_left_brace();\r
+ }\r
+\r
+ unbalance = 1;\r
+\r
+ while (true)\r
+ {\r
+ if (xpand)\r
+ {\r
+ while (true)\r
+ {\r
+ get_next();\r
+\r
+ if (cur_cmd <= max_command)\r
+ goto done2;\r
+\r
+ if (cur_cmd != the)\r
+ {\r
+ expand();\r
+ }\r
+ else\r
+ {\r
+ q = the_toks();\r
+\r
+ if (link(temp_head) != 0)\r
+ {\r
+ link(p) = link(temp_head);\r
+ p = q;\r
+ }\r
+ }\r
+ }\r
+done2:\r
+ x_token();\r
+ }\r
+ else\r
+ get_token();\r
+\r
+ if (cur_tok < right_brace_limit)\r
+ if (cur_cmd < right_brace)\r
+ incr(unbalance);\r
+ else\r
+ {\r
+ decr(unbalance);\r
+\r
+ if (unbalance == 0)\r
+ goto found;\r
+ }\r
+ else if (cur_cmd == mac_param)\r
+ if (macro_def)\r
+ {\r
+ s = cur_tok;\r
+\r
+ if (xpand)\r
+ get_x_token();\r
+ else\r
+ get_token();\r
+\r
+ if (cur_cmd != mac_param)\r
+ if ((cur_tok <= zero_token) || (cur_tok > t))\r
+ {\r
+ print_err("Illegal parameter number in definition of ");\r
+ sprint_cs(warning_index);\r
+ help3("You meant to type ## instead of #, right?",\r
+ "Or maybe a } was forgotten somewhere earlier, and things",\r
+ "are all screwed up? I'm going to assume that you meant ##.");\r
+ back_error();\r
+ cur_tok = s;\r
+ }\r
+ else\r
+ cur_tok = out_param_token - '0' + cur_chr;\r
+ }\r
+\r
+ store_new_token(cur_tok);\r
+ }\r
+\r
+found:\r
+ scanner_status = 0;\r
+\r
+ if (hash_brace != 0)\r
+ store_new_token(hash_brace);\r
+\r
+ return p;\r
+}\r
+/* sec 0482 */\r
+void read_toks (integer n, pointer r)\r
+{\r
+ pointer p;\r
+ pointer q;\r
+ integer s;\r
+ /* small_number m; */\r
+ int m;\r
+\r
+ scanner_status = defining;\r
+ warning_index = r;\r
+ def_ref = get_avail();\r
+ token_ref_count(def_ref) = 0;\r
+ p = def_ref;\r
+ store_new_token(end_match_token);\r
+\r
+ if ((n < 0) || (n > 15))\r
+ m = 16;\r
+ else\r
+ m = n;\r
+\r
+ s = align_state;\r
+ align_state = 1000000L;\r
+\r
+ do\r
+ {\r
+ begin_file_reading();\r
+ name = m + 1;\r
+\r
+ if (read_open[m] == closed)\r
+ if (interaction > nonstop_mode)\r
+ if (n < 0)\r
+ prompt_input("");\r
+ else\r
+ {\r
+ print_ln();\r
+ sprint_cs(r);\r
+ prompt_input("=");\r
+ n = -1;\r
+ }\r
+ else\r
+ {\r
+ fatal_error("*** (cannot \\read from terminal in nonstop modes)");\r
+ return;\r
+ }\r
+ else if (read_open[m] == just_open)\r
+ if (input_ln(read_file[m], false))\r
+ read_open[m] = normal;\r
+ else\r
+ {\r
+ a_close(read_file[m]);\r
+ read_open[m] = closed;\r
+ }\r
+ else\r
+ {\r
+ if (!input_ln(read_file[m], true))\r
+ {\r
+ a_close(read_file[m]);\r
+ read_open[m] = closed;\r
+\r
+ if (align_state != 1000000L)\r
+ {\r
+ runaway();\r
+ print_err("File ended within ");\r
+ print_esc("read");\r
+ help1("This \\read has unbalanced braces.");\r
+ align_state = 1000000L;\r
+ error();\r
+ }\r
+ }\r
+ }\r
+\r
+ limit = last;\r
+\r
+ if (end_line_char_inactive())\r
+ decr(limit);\r
+ else\r
+ buffer[limit] = end_line_char;\r
+\r
+ first = limit + 1;\r
+ loc = start;\r
+ state = new_line;\r
+\r
+ while (true)\r
+ {\r
+ get_token();\r
+\r
+ if (cur_tok == 0)\r
+ goto done;\r
+\r
+ if (align_state < 1000000L)\r
+ {\r
+ do\r
+ {\r
+ get_token();\r
+ }\r
+ while (!(cur_tok == 0));\r
+\r
+ align_state = 1000000L;\r
+ goto done;\r
+ }\r
+\r
+ store_new_token(cur_tok);\r
+ }\r
+\r
+done:\r
+ end_file_reading();\r
+ }\r
+ while (!(align_state == 1000000L));\r
+\r
+ cur_val = def_ref;\r
+ scanner_status = normal;\r
+ align_state = s;\r
+}\r
+/* sec 0494 */\r
+void pass_text (void)\r
+{\r
+ integer l;\r
+ small_number save_scanner_status;\r
+\r
+ save_scanner_status = scanner_status;\r
+ scanner_status = skipping;\r
+ l = 0;\r
+ skip_line = line;\r
+\r
+ while (true)\r
+ {\r
+ get_next();\r
+\r
+ if (cur_cmd == fi_or_else)\r
+ {\r
+ if (l == 0)\r
+ goto done;\r
+\r
+ if (cur_chr == fi_code)\r
+ decr(l);\r
+ }\r
+ else if (cur_cmd == if_test)\r
+ incr(l);\r
+ }\r
+\r
+done:\r
+ scanner_status = save_scanner_status;\r
+}\r
+/* sec 0497 */\r
+void change_if_limit (small_number l, pointer p)\r
+{\r
+ pointer q;\r
+\r
+ if (p == cond_ptr)\r
+ if_limit = l;\r
+ else\r
+ {\r
+ q = cond_ptr;\r
+\r
+ while (true)\r
+ {\r
+ if (q == 0)\r
+ {\r
+ confusion("if");\r
+ return;\r
+ }\r
+\r
+ if (link(q) == p)\r
+ {\r
+ type(p) = l;\r
+ return;\r
+ }\r
+\r
+ q = link(q);\r
+ }\r
+ }\r
+}\r
+/* sec 0498 */\r
+void conditional (void)\r
+{\r
+ boolean b;\r
+ char r;\r
+ integer m, n;\r
+ pointer p, q;\r
+ small_number save_scanner_status;\r
+ pointer save_cond_ptr;\r
+ small_number this_if;\r
+\r
+ {\r
+ p = get_node(if_node_size);\r
+ link(p) = cond_ptr;\r
+ type(p) = if_limit;\r
+ subtype(p) = cur_if;\r
+ if_line_field(p) = if_line;\r
+ cond_ptr = p;\r
+ cur_if = cur_chr;\r
+ if_limit = if_code;\r
+ if_line = line;\r
+ }\r
+\r
+ save_cond_ptr = cond_ptr;\r
+ this_if = cur_chr;\r
+\r
+ switch (this_if)\r
+ {\r
+ case if_char_code:\r
+ case if_cat_code:\r
+ {\r
+ get_x_token_or_active_char();\r
+\r
+ if ((cur_cmd > active_char) || (cur_chr > 255))\r
+ {\r
+ m = relax;\r
+ n = 256;\r
+ }\r
+ else\r
+ {\r
+ m = cur_cmd;\r
+ n = cur_chr;\r
+ }\r
+\r
+ get_x_token_or_active_char();\r
+\r
+ if ((cur_cmd > active_char) || (cur_chr > 255))\r
+ {\r
+ cur_cmd = relax;\r
+ cur_chr = 256;\r
+ }\r
+\r
+ if (this_if == if_char_code)\r
+ b = (n == cur_chr); \r
+ else\r
+ b = (m == cur_cmd);\r
+ }\r
+ break;\r
+\r
+ case if_int_code:\r
+ case if_dim_code:\r
+ {\r
+ if (this_if == if_int_code)\r
+ scan_int();\r
+ else\r
+ scan_dimen(false, false, false);\r
+\r
+ n = cur_val;\r
+ \r
+ do\r
+ {\r
+ get_x_token();\r
+ }\r
+ while (!(cur_cmd != spacer));\r
+\r
+ if ((cur_tok >= other_token + '<') && (cur_tok <= other_token + '>'))\r
+ r = cur_tok - other_token;\r
+ else\r
+ {\r
+ print_err("Missing = inserted for ");\r
+ print_cmd_chr(if_test, this_if);\r
+ help1("I was expecting to see `<', `=', or `>'. Didn't.");\r
+ back_error();\r
+ r = '=';\r
+ }\r
+\r
+ if (this_if == if_int_code)\r
+ scan_int();\r
+ else \r
+ scan_dimen(false, false, false);\r
+\r
+ switch (r)\r
+ {\r
+ case '<':\r
+ b = (n < cur_val);\r
+ break;\r
+\r
+ case '=':\r
+ b = (n == cur_val);\r
+ break;\r
+\r
+ case '>':\r
+ b = (n > cur_val);\r
+ break;\r
+ }\r
+ }\r
+ break;\r
+\r
+ case if_odd_code:\r
+ scan_int();\r
+ b = odd(cur_val);\r
+ break;\r
+\r
+ case if_vmode_code:\r
+ b = (abs(mode) == vmode);\r
+ break;\r
+\r
+ case if_hmode_code:\r
+ b = (abs(mode) == hmode);\r
+ break;\r
+\r
+ case if_mmode_code:\r
+ b = (abs(mode) == mmode);\r
+ break;\r
+\r
+ case if_inner_code:\r
+ b = (mode < 0);\r
+ break;\r
+\r
+ case if_void_code:\r
+ case if_hbox_code:\r
+ case if_vbox_code:\r
+ {\r
+ scan_eight_bit_int();\r
+ p = box(cur_val);\r
+\r
+ if (this_if == if_void_code)\r
+ b = (p == 0);\r
+ else if (p == 0)\r
+ b = false;\r
+ else if (this_if == if_hbox_code)\r
+ b = (type(p) == hlist_node);\r
+ else\r
+ b = (type(p) == vlist_node);\r
+ }\r
+ break;\r
+\r
+ case ifx_code:\r
+ {\r
+ save_scanner_status = scanner_status;\r
+ scanner_status = 0;\r
+ get_next();\r
+ n = cur_cs;\r
+ p = cur_cmd;\r
+ q = cur_chr;\r
+ get_next();\r
+\r
+ if (cur_cmd != p)\r
+ b = false;\r
+ else if (cur_cmd < call)\r
+ b = (cur_chr == q);\r
+ else\r
+ {\r
+ p = link(cur_chr);\r
+ q = link(equiv(n));\r
+\r
+ if (p == q)\r
+ b = true;\r
+ else\r
+ {\r
+ while ((p != 0) && (q != 0))\r
+ if (info(p) != info(q))\r
+ p = 0;\r
+ else\r
+ {\r
+ p = link(p);\r
+ q = link(q);\r
+ }\r
+\r
+ b = ((p == 0) && (q == 0));\r
+ }\r
+ }\r
+\r
+ scanner_status = save_scanner_status;\r
+ }\r
+ break;\r
+\r
+ case if_eof_code:\r
+ {\r
+ scan_four_bit_int();\r
+ b = (read_open[cur_val] == closed);\r
+ }\r
+ break;\r
+\r
+ case if_true_code:\r
+ b = true;\r
+ break;\r
+\r
+ case if_false_code:\r
+ b = false;\r
+ break;\r
+\r
+ case if_case_code:\r
+ {\r
+ scan_int();\r
+ n = cur_val;\r
+\r
+ if (tracing_commands > 1)\r
+ {\r
+ begin_diagnostic();\r
+ prints("{case ");\r
+ print_int(n); \r
+ print_char('}');\r
+ end_diagnostic(false);\r
+ }\r
+\r
+ while (n != 0)\r
+ {\r
+ pass_text();\r
+\r
+ if (cond_ptr == save_cond_ptr)\r
+ if (cur_chr == or_code)\r
+ decr(n);\r
+ else \r
+ goto common_ending;\r
+ else if (cur_chr == fi_code)\r
+ {\r
+ p = cond_ptr;\r
+ if_line = if_line_field(p);\r
+ cur_if = subtype(p);\r
+ if_limit = type(p);\r
+ cond_ptr = link(p);\r
+ free_node(p, if_node_size);\r
+ }\r
+ }\r
+\r
+ change_if_limit(or_code, save_cond_ptr);\r
+ return;\r
+ }\r
+ break;\r
+ }\r
+\r
+ if (tracing_commands > 1)\r
+ {\r
+ begin_diagnostic();\r
+\r
+ if (b)\r
+ prints("{true}");\r
+ else\r
+ prints("{false}");\r
+\r
+ end_diagnostic(false);\r
+ }\r
+\r
+ if (b)\r
+ {\r
+ change_if_limit(else_code, save_cond_ptr);\r
+ return;\r
+ }\r
+\r
+ while (true)\r
+ {\r
+ pass_text();\r
+\r
+ if (cond_ptr == save_cond_ptr)\r
+ {\r
+ if (cur_chr != or_code)\r
+ goto common_ending;\r
+\r
+ print_err("Extra ");\r
+ print_esc("or");\r
+ help1("I'm ignoring this; it doesn't match any \\if.");\r
+ error();\r
+ }\r
+ else if (cur_chr == fi_code)\r
+ {\r
+ p = cond_ptr;\r
+ if_line = if_line_field(p);\r
+ cur_if = subtype(p);\r
+ if_limit = type(p);\r
+ cond_ptr = link(p);\r
+ free_node(p, if_node_size);\r
+ }\r
+ }\r
+\r
+common_ending:\r
+ if (cur_chr == fi_code)\r
+ {\r
+ p = cond_ptr;\r
+ if_line = if_line_field(p);\r
+ cur_if = subtype(p);\r
+ if_limit = type(p);\r
+ cond_ptr = link(p);\r
+ free_node(p, if_node_size);\r
+ }\r
+ else\r
+ if_limit = fi_code;\r
+}\r
+/* sec 0515 */\r
+void begin_name (void)\r
+{\r
+ area_delimiter = 0;\r
+ ext_delimiter = 0;\r
+}\r
+/* sec 0516 */\r
+boolean more_name (ASCII_code c)\r
+{\r
+ if (quoted_file_name == false && c == ' ')\r
+ return false;\r
+ else if (quoted_file_name != false && c == '"')\r
+ {\r
+ quoted_file_name = false; /* catch next space character */\r
+ return true; /* accept ending quote, but throw away */\r
+ }\r
+ else\r
+ { \r
+ str_room(1);\r
+ append_char(c);\r
+\r
+ // for DOS/Windows\r
+ if ((c == '/' || c == '\\' || c == ':')) \r
+ {\r
+ area_delimiter = cur_length;\r
+ ext_delimiter = 0;\r
+ } \r
+ else if (c == '.')\r
+ ext_delimiter = cur_length;\r
+\r
+ return true;\r
+ }\r
+}\r
+\r
+/* sec 0517 */\r
+void end_name (void) \r
+{\r
+#ifdef ALLOCATESTRING\r
+ if (str_ptr + 3 > current_max_strings)\r
+ str_start = realloc_str_start(increment_max_strings + 3);\r
+\r
+ if (str_ptr + 3 > current_max_strings)\r
+ {\r
+ overflow("number of strings", current_max_strings - init_str_ptr);\r
+ return;\r
+ }\r
+#else\r
+ if (str_ptr + 3 > max_strings)\r
+ {\r
+ overflow("number of strings", max_strings - init_str_ptr);\r
+ return;\r
+ }\r
+#endif\r
+\r
+ if (area_delimiter == 0) // no area delimiter ':' '/' or '\' found\r
+ cur_area = 335; // "" default area \r
+ else\r
+ {\r
+ cur_area = str_ptr;\r
+ str_start[str_ptr + 1] = str_start[str_ptr] + area_delimiter;\r
+ incr(str_ptr);\r
+ }\r
+\r
+ if (ext_delimiter == 0) // no extension delimiter '.' found\r
+ {\r
+ cur_ext = 335; // "" default extension \r
+ cur_name = make_string();\r
+ } \r
+ else\r
+ {\r
+ cur_name = str_ptr;\r
+ str_start[str_ptr + 1] = str_start[str_ptr] + ext_delimiter - area_delimiter - 1;\r
+ incr(str_ptr);\r
+ cur_ext = make_string();\r
+ }\r
+}\r
+/* sec 0519 */\r
+void pack_file_name (str_number n, str_number a, str_number e)\r
+{\r
+ integer k;\r
+ ASCII_code c;\r
+ pool_pointer j;\r
+\r
+ k = 0;\r
+\r
+ for (j = str_start[a]; j <= str_start[a + 1] - 1; j++)\r
+ append_to_name(str_pool[j]);\r
+\r
+ for (j = str_start[n]; j <= str_start[n + 1] - 1; j++)\r
+ append_to_name(str_pool[j]);\r
+\r
+ for (j = str_start[e]; j <= str_start[e + 1] - 1; j++)\r
+ append_to_name(str_pool[j]);\r
+\r
+ if (k < file_name_size)\r
+ name_length = k;\r
+ else\r
+ name_length = file_name_size - 1;\r
+\r
+ for (k = name_length + 1; k <= file_name_size; k++)\r
+ name_of_file[k] = ' ';\r
+\r
+ name_of_file[file_name_size] = '\0'; /* paranoia */\r
+\r
+ {\r
+ name_of_file [name_length + 1] = '\0';\r
+\r
+ if (trace_flag)\r
+ printf(" pack_file_name `%s' (%lld) ", name_of_file + 1, name_length);\r
+\r
+ name_of_file [name_length + 1] = ' ';\r
+ }\r
+}\r
+/* Called only from two places tex9.c for format name - specified and default */\r
+/* for specified format name args are 0, a, b name in buffer[a] --- buffer[b] */\r
+/* for default args are format_default_length-4, 1, 0 */\r
+/* sec 0523 */\r
+void pack_buffered_name_(small_number n, integer a, integer b)\r
+{\r
+ integer k;\r
+ ASCII_code c;\r
+ integer j;\r
+\r
+ if (n + b - a + 5 > file_name_size)\r
+ b = a + file_name_size - n - 5;\r
+\r
+ k = 0;\r
+\r
+ for (j = 1; j <= n; j++)\r
+ append_to_name(xord[TEX_format_default[j]]);\r
+\r
+ for (j = a; j <= b; j++)\r
+ append_to_name(buffer[j]);\r
+\r
+ for (j = format_default_length - 3; j <= format_default_length; j++)\r
+ append_to_name(xord[TEX_format_default[j]]);\r
+\r
+ if (k < file_name_size)\r
+ name_length = k;\r
+ else\r
+ name_length = file_name_size - 1;\r
+\r
+ for (k = name_length + 1; k <= file_name_size; k++)\r
+ name_of_file[k]= ' ';\r
+\r
+ name_of_file[file_name_size] = '\0';\r
+}\r
+/* sec 0525 */\r
+str_number make_name_string (void)\r
+{\r
+ integer k;\r
+\r
+#ifdef ALLOCATESTRING\r
+ if (pool_ptr + name_length > current_pool_size)\r
+ str_pool = realloc_str_pool(increment_pool_size + name_length);\r
+\r
+ if (str_ptr == current_max_strings)\r
+ str_start = realloc_str_start(increment_max_strings);\r
+\r
+ if ((pool_ptr + name_length > current_pool_size) || (str_ptr == current_max_strings) || (cur_length > 0))\r
+#else\r
+ if ((pool_ptr + name_length > pool_size) || (str_ptr == max_strings) || (cur_length > 0))\r
+#endif\r
+ {\r
+ return '?';\r
+ }\r
+ else\r
+ {\r
+ for (k = 1; k <= name_length; k++)\r
+ append_char(xord[name_of_file[k]]);\r
+\r
+ return make_string();\r
+ }\r
+}\r
+/* sec 0525 */\r
+//str_number a_make_name_string (alpha_file * f)\r
+str_number a_make_name_string_(void)\r
+{\r
+ return make_name_string();\r
+}\r
+/* sec 0525 */\r
+//str_number b_make_name_string_(byte_file * f)\r
+str_number b_make_name_string_(void)\r
+{\r
+ return make_name_string(); \r
+}\r
+/* sec 0525 */\r
+//str_number w_make_name_string_(word_file * f)\r
+str_number w_make_name_string_(void)\r
+{\r
+ return make_name_string();\r
+}\r
+/* sec 0526 */\r
+void scan_file_name (void)\r
+{\r
+ name_in_progress = true;\r
+ begin_name();\r
+\r
+ do\r
+ {\r
+ get_x_token(); \r
+ }\r
+ while (!(cur_cmd != spacer));\r
+\r
+ quoted_file_name = false;\r
+\r
+ if (allow_quoted_names)\r
+ {\r
+ if (cur_chr == '"')\r
+ {\r
+ quoted_file_name = true;\r
+ get_x_token();\r
+ }\r
+ }\r
+\r
+ while (true)\r
+ {\r
+ if ((cur_cmd > other_char) || (cur_chr > 255)) \r
+ {\r
+ back_input();\r
+ goto done; \r
+ } \r
+\r
+ if (!more_name(cur_chr))\r
+ goto done;\r
+\r
+ get_x_token();\r
+ }\r
+\r
+done:\r
+ end_name();\r
+ name_in_progress = false;\r
+}\r
+/* argument is string .fmt, .log, .pdf, or .dvi */\r
+/* sec 0529 */\r
+void pack_job_name_(str_number s)\r
+{\r
+ cur_area = 335; /* "" */\r
+ cur_ext = s;\r
+ cur_name = job_name;\r
+ pack_file_name(cur_name, cur_area, cur_ext);\r
+}\r
+/* sec 0530 */\r
+void prompt_file_name_(const char * s, str_number e) \r
+{\r
+ integer k;\r
+\r
+ if (interaction == scroll_mode)\r
+ do_nothing();\r
+\r
+ if (!strcmp("input file name", s))\r
+ print_err("I can't find file `");\r
+ else\r
+ print_err("I can't write on file `");\r
+\r
+ print_file_name(cur_name, cur_area, cur_ext);\r
+ prints("'.");\r
+\r
+ if (e == 785) /* .tex */\r
+ show_context();\r
+\r
+ print_nl("Please type another ");\r
+ prints(s); \r
+\r
+ if (interaction < scroll_mode)\r
+ {\r
+ fatal_error("*** (job aborted, file error in nonstop mode)");\r
+ return;\r
+ }\r
+\r
+ if (!knuth_flag)\r
+ show_line(" (or Ctrl-Z to exit)", 0);\r
+\r
+ prompt_input(": ");\r
+\r
+ {\r
+ begin_name();\r
+ k = first;\r
+\r
+ while ((buffer[k] == ' ') && (k < last))\r
+ incr(k);\r
+\r
+ quoted_file_name = false;\r
+\r
+ if (allow_quoted_names && k < last) /* check whether quoted name */\r
+ {\r
+ if (buffer[k]== '"')\r
+ {\r
+ quoted_file_name = true;\r
+ incr(k);\r
+ }\r
+ }\r
+\r
+ while (true)\r
+ {\r
+ if (k == last)\r
+ goto done;\r
+\r
+ /* convert tilde '~' to pseudo tilde */\r
+ if (pseudo_tilde != 0 && buffer[k]== '~')\r
+ buffer[k] = pseudo_tilde;\r
+\r
+ /* convert space ' ' to pseudo space */\r
+ if (pseudo_space != 0 && buffer[k]== ' ')\r
+ buffer[k] = pseudo_space;\r
+\r
+ if (!more_name(buffer[k]))\r
+ goto done;\r
+\r
+ incr(k);\r
+ }\r
+\r
+done:\r
+ end_name();\r
+ }\r
+\r
+ if (cur_ext == 335) /* "" */\r
+ cur_ext = e; /* use default extension */\r
+\r
+ pack_file_name(cur_name, cur_area, cur_ext);\r
+}\r
+/* sec 0534 */\r
+void open_log_file (void)\r
+{\r
+ char old_setting;\r
+ integer k;\r
+ integer l;\r
+ char * months;\r
+\r
+ old_setting = selector;\r
+\r
+ if (job_name == 0)\r
+ job_name = get_job_name(790);\r
+ //job_name = 790;\r
+\r
+ pack_job_name(".log");\r
+\r
+ while (!a_open_out(log_file))\r
+ {\r
+ selector = term_only;\r
+ prompt_file_name("transcript file name", ".log");\r
+ }\r
+\r
+ log_name = a_make_name_string(log_file);\r
+ selector = log_only;\r
+ log_opened = true;\r
+\r
+ {\r
+ fprintf(log_file, "%s (%s %s)", banner, application, yandyversion);\r
+\r
+ if (format_ident > 0)\r
+ slow_print(format_ident);\r
+\r
+ prints(" ");\r
+\r
+ if (civilize_flag)\r
+ print_int(year);\r
+ else\r
+ print_int(day);\r
+\r
+ print_char(' ');\r
+ months = " JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC";\r
+\r
+ for (k = 3 * month - 2; k <= 3 * month; k++)\r
+ putc(months[k], log_file);\r
+\r
+ print_char(' ');\r
+\r
+ if (civilize_flag)\r
+ print_int(day);\r
+ else\r
+ print_int(year);\r
+\r
+ print_char(' ');\r
+ print_two(tex_time / 60);\r
+ print_char(':');\r
+ print_two(tex_time % 60);\r
+ }\r
+\r
+ input_stack[input_ptr] = cur_input;\r
+ print_nl("**");\r
+ l = input_stack[0].limit_field;\r
+\r
+ if (buffer[l] == end_line_char)\r
+ decr(l);\r
+\r
+ for (k = 1; k <= l; k++)\r
+ print(buffer[k]);\r
+\r
+ print_ln(); \r
+\r
+ if (show_fmt_flag)\r
+ {\r
+ if (format_file != NULL)\r
+ {\r
+ fprintf(log_file, "(%s)\n", format_file);\r
+ free(format_file);\r
+ format_file = NULL;\r
+ }\r
+ }\r
+\r
+ selector = old_setting + 2;\r
+}\r
+/* sec 0537 */\r
+void start_input (void)\r
+{\r
+ scan_file_name();\r
+ pack_file_name(cur_name, cur_area, cur_ext); \r
+\r
+ while (true)\r
+ {\r
+ begin_file_reading();\r
+ \r
+ if (a_open_in(cur_file, kpse_tex_format))\r
+ goto done;\r
+\r
+ end_file_reading();\r
+ prompt_file_name("input file name", ".tex");\r
+ }\r
+\r
+done: \r
+ name = a_make_name_string(cur_file);\r
+\r
+ if (job_name == 0)\r
+ {\r
+ job_name = get_job_name(cur_name);\r
+ //job_name = cur_name;\r
+ open_log_file();\r
+ }\r
+\r
+ if (term_offset + length(name) > max_print_line - 2)\r
+ print_ln();\r
+ else if ((term_offset > 0) || (file_offset > 0))\r
+ print_char(' ');\r
+\r
+ print_char('(');\r
+ incr(open_parens);\r
+\r
+ if (open_parens > max_open_parens)\r
+ max_open_parens = open_parens;\r
+\r
+ slow_print(name);\r
+ update_terminal();\r
+ state = new_line;\r
+\r
+ {\r
+ line = 1;\r
+\r
+ if (input_ln(cur_file, false))\r
+ do_nothing();\r
+\r
+ firm_up_the_line();\r
+\r
+ if (end_line_char_inactive())\r
+ decr(limit);\r
+ else\r
+ buffer[limit] = end_line_char;\r
+\r
+ first = limit + 1;\r
+ loc = start;\r
+ }\r
+}\r
+/* sec 0560 */\r
+internal_font_number read_font_info (pointer u, str_number nom, str_number aire, scaled s)\r
+{\r
+ font_index k;\r
+ boolean file_opened;\r
+ halfword lf, lh, nw, nh, nd, ni, nl, nk, ne, np;\r
+ int bc, ec;\r
+ internal_font_number f;\r
+ internal_font_number g;\r
+ eight_bits a, b, c, d;\r
+ four_quarters qw;\r
+ scaled sw;\r
+ integer bch_label;\r
+ short bchar;\r
+ scaled z;\r
+ integer alpha;\r
+ char beta;\r
+\r
+ g = 0;\r
+ file_opened = false;\r
+ pack_file_name(nom, aire, 805); /* .tfm */\r
+\r
+ if (!b_open_in(tfm_file))\r
+ goto bad_tfm;\r
+\r
+ file_opened = true;\r
+\r
+ {\r
+ read_sixteen(lf);\r
+ fget();\r
+ read_sixteen(lh);\r
+ fget();\r
+ read_sixteen(bc);\r
+ fget();\r
+ read_sixteen(ec);\r
+\r
+ if ((bc > ec + 1) || (ec > 255))\r
+ goto bad_tfm;\r
+\r
+ if (bc > 255)\r
+ {\r
+ bc = 1;\r
+ ec = 0;\r
+ }\r
+\r
+ fget();\r
+ read_sixteen(nw);\r
+ fget();\r
+ read_sixteen(nh);\r
+ fget();\r
+ read_sixteen(nd);\r
+ fget();\r
+ read_sixteen(ni);\r
+ fget();\r
+ read_sixteen(nl);\r
+ fget();\r
+ read_sixteen(nk);\r
+ fget();\r
+ read_sixteen(ne);\r
+ fget();\r
+ read_sixteen(np);\r
+\r
+ if (lf != 6 + lh + (ec - bc + 1) + nw + nh + nd + ni + nl + nk + ne + np)\r
+ goto bad_tfm;\r
+\r
+ if ((nw == 0) || (nh == 0) || (nd == 0) || (ni == 0))\r
+ goto bad_tfm;\r
+ }\r
+\r
+ lf = lf - 6 - lh;\r
+\r
+ if (np < 7)\r
+ lf = lf + 7 - np;\r
+\r
+#ifdef ALLOCATEFONT\r
+ if ((fmem_ptr + lf > current_font_mem_size))\r
+ font_info = realloc_font_info (increment_font_mem_size + lf);\r
+\r
+ if ((font_ptr == font_max) || (fmem_ptr + lf > current_font_mem_size))\r
+#else\r
+ if ((font_ptr == font_max) || (fmem_ptr + lf > font_mem_size))\r
+#endif\r
+ {\r
+ if (trace_flag)\r
+ printf("font_ptr %lld font_max %d fmem_ptr %lld lf %d font_mem_size %ld\n",\r
+ font_ptr, font_max, fmem_ptr, lf, font_mem_size);\r
+\r
+ start_font_error_message();\r
+ prints(" not loaded: Not enough room left");\r
+ help4("I'm afraid I won't be able to make use of this font,",\r
+ "because my memory for character-size data is too small.",\r
+ "If you're really stuck, ask a wizard to enlarge me.",\r
+ "Or maybe try `I\\font<same font id>=<name of loaded font>'.");\r
+ error();\r
+ goto done;\r
+ }\r
+\r
+ f = font_ptr + 1;\r
+ char_base[f] = fmem_ptr - bc;\r
+ width_base[f] = char_base[f] + ec + 1;\r
+ height_base[f] = width_base[f] + nw;\r
+ depth_base[f] = height_base[f] + nh;\r
+ italic_base[f] = depth_base[f] + nd;\r
+ lig_kern_base[f] = italic_base[f] + ni;\r
+ kern_base[f] = lig_kern_base[f] + nl - kern_base_offset;\r
+ exten_base[f] = kern_base[f] + kern_base_offset + nk;\r
+ param_base[f] = exten_base[f] + ne;\r
+\r
+ {\r
+ if (lh < 2)\r
+ goto bad_tfm;\r
+ \r
+ store_four_quarters(font_check[f]);\r
+ fget();\r
+ read_sixteen(z);\r
+ fget();\r
+ z = z * 256 + fbyte;\r
+ fget();\r
+ z = (z * 16) + (fbyte / 16);\r
+\r
+ if (z < unity)\r
+ goto bad_tfm; \r
+\r
+ while (lh > 2)\r
+ {\r
+ fget();\r
+ fget();\r
+ fget();\r
+ fget();\r
+ decr(lh);\r
+ }\r
+\r
+ font_dsize[f] = z;\r
+\r
+ if (s != -1000)\r
+ if (s >= 0)\r
+ z = s;\r
+ else\r
+ z = xn_over_d(z, - (integer) s, 1000);\r
+\r
+ font_size[f] = z;\r
+ }\r
+\r
+ for (k = fmem_ptr; k <= width_base[f] - 1; k++)\r
+ {\r
+ store_four_quarters(font_info[k].qqqq);\r
+\r
+ if ((a >= nw) || (b / 16 >= nh) || (b % 16 >= nd) || (c / 4 >= ni))\r
+ goto bad_tfm;\r
+\r
+ switch (c % 4)\r
+ {\r
+ case lig_tag:\r
+ if (d >= nl)\r
+ goto bad_tfm;\r
+ break;\r
+\r
+ case ext_tag:\r
+ if (d >= ne)\r
+ goto bad_tfm;\r
+ break;\r
+\r
+ case list_tag:\r
+ {\r
+ check_byte_range(d);\r
+\r
+ while (d < k + bc - fmem_ptr)\r
+ {\r
+ qw = char_info(f, d);\r
+ \r
+ if (char_tag(qw) != list_tag)\r
+ goto not_found;\r
+\r
+ d = rem_byte(qw);\r
+ }\r
+\r
+ if (d == k + bc - fmem_ptr)\r
+ goto bad_tfm;\r
+not_found:;\r
+ }\r
+ break;\r
+\r
+ default:\r
+ break;\r
+ }\r
+ }\r
+\r
+ {\r
+ {\r
+ alpha = 16;\r
+\r
+ while (z >= 8388608L) /* 2^23 */\r
+ {\r
+ z = z / 2;\r
+ alpha = alpha + alpha;\r
+ }\r
+\r
+ beta = (char) (256 / alpha);\r
+ alpha = alpha * z;\r
+ }\r
+\r
+ for (k = width_base[f]; k <= lig_kern_base[f] - 1; k++)\r
+ store_scaled(font_info[k].cint);\r
+\r
+ if (font_info[width_base[f]].cint != 0)\r
+ goto bad_tfm;\r
+\r
+ if (font_info[height_base[f]].cint != 0)\r
+ goto bad_tfm;\r
+\r
+ if (font_info[depth_base[f]].cint != 0)\r
+ goto bad_tfm;\r
+\r
+ if (font_info[italic_base[f]].cint != 0)\r
+ goto bad_tfm;\r
+ }\r
+\r
+ bch_label = 32767; /* '77777 */\r
+ bchar = 256;\r
+\r
+ if (nl > 0)\r
+ {\r
+ for (k = lig_kern_base[f]; k <= kern_base[f] + kern_base_offset - 1; k++)\r
+ {\r
+ store_four_quarters(font_info[k].qqqq);\r
+\r
+ if (a > 128)\r
+ {\r
+ if (256 * c + d >= nl)\r
+ goto bad_tfm;\r
+\r
+ if (a == 255)\r
+ if (k == lig_kern_base[f])\r
+ bchar = b;\r
+ }\r
+ else\r
+ {\r
+ if (b != bchar)\r
+ check_existence(b);\r
+\r
+ if (c < 128)\r
+ check_existence(d);\r
+ else if (256 * (c - 128) + d >= nk)\r
+ goto bad_tfm;\r
+\r
+ if (a < 128)\r
+ if (k - lig_kern_base[f] + a + 1 >= nl)\r
+ goto bad_tfm;\r
+ }\r
+ }\r
+\r
+ if (a == 255)\r
+ bch_label = 256 * c + d;\r
+ }\r
+\r
+ for (k = kern_base[f] + kern_base_offset; k <= exten_base[f] - 1; k++)\r
+ store_scaled(font_info[k].cint);\r
+\r
+ for (k = exten_base[f]; k <= param_base[f] - 1; k++)\r
+ {\r
+ store_four_quarters(font_info[k].qqqq);\r
+\r
+ if (a != 0)\r
+ check_existence(a);\r
+\r
+ if (b != 0)\r
+ check_existence(b);\r
+\r
+ if (c != 0)\r
+ check_existence(c);\r
+\r
+ check_existence(d);\r
+ }\r
+\r
+ {\r
+ for (k = 1; k <= np; k++)\r
+ if (k == 1)\r
+ {\r
+ fget();\r
+ sw = fbyte;\r
+\r
+ if (sw > 127)\r
+ sw = sw - 256;\r
+\r
+ fget();\r
+ sw = sw * 256 + fbyte;\r
+ fget();\r
+ sw = sw * 256 + fbyte;\r
+ fget();\r
+ font_info[param_base[f]].cint = (sw * 16) + (fbyte / 16);\r
+ }\r
+ else\r
+ store_scaled(font_info[param_base[f] + k - 1].cint);\r
+\r
+ if (feof(tfm_file))\r
+ goto bad_tfm;\r
+\r
+ for (k = np + 1; k <= 7; k++)\r
+ font_info[param_base[f] + k - 1].cint = 0;\r
+ }\r
+\r
+ if (np >= 7)\r
+ font_params[f] = np;\r
+ else\r
+ font_params[f] = 7;\r
+\r
+ hyphen_char[f] = default_hyphen_char;\r
+ skew_char[f] = default_skew_char;\r
+\r
+ if (bch_label < nl)\r
+ bchar_label[f] = bch_label + lig_kern_base[f];\r
+ else\r
+ bchar_label[f] = non_address;\r
+\r
+ font_bchar[f] = bchar;\r
+ font_false_bchar[f] = bchar;\r
+\r
+ if (bchar <= ec)\r
+ if (bchar >= bc)\r
+ {\r
+ qw = char_info(f, bchar);\r
+\r
+ if (char_exists(qw))\r
+ font_false_bchar[f] = 256;\r
+ }\r
+\r
+ font_name[f] = nom;\r
+ font_area[f] = aire;\r
+ font_bc[f] = bc;\r
+ font_ec[f] = ec;\r
+ font_glue[f] = 0;\r
+ adjust(char_base);\r
+ adjust(width_base);\r
+ adjust(lig_kern_base);\r
+ adjust(kern_base);\r
+ adjust(exten_base);\r
+ decr(param_base[f]);\r
+ fmem_ptr = fmem_ptr + lf;\r
+ font_ptr = f;\r
+ g = f;\r
+ goto done;\r
+\r
+bad_tfm:\r
+ start_font_error_message();\r
+\r
+ if (file_opened)\r
+ prints(" not loadable: Bad metric (TFM) file");\r
+ else\r
+ prints(" not loadable: Metric (TFM) file not found");\r
+\r
+ help5("I wasn't able to read the size data for this font,",\r
+ "so I will ignore the font specification.",\r
+ "[Wizards can fix TFM files using TFtoPL/PLtoTF.]",\r
+ "You might try inserting a different font spec;",\r
+ "e.g., type `I\\font<same font id>=<substitute font name>'.");\r
+ error();\r
+\r
+done:\r
+ if (file_opened)\r
+ b_close(tfm_file);\r
+\r
+ return g;\r
}
\ No newline at end of file
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