-#ifdef _WINDOWS
- #define NOCOMM
- #define NOSOUND
- #define NODRIVERS
- #define STRICT
- #pragma warning(disable:4115) // kill rpcasync.h complaint
- #include <windows.h>
- #define MYLIBAPI __declspec(dllexport)
-#endif
+/* Copyright 2014 Clerk Ma
-#include "texwin.h"
+ 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.
-#pragma warning(disable:4996)
-#pragma warning(disable:4131) // old style declarator
-#pragma warning(disable:4135) // conversion between different integral types
-#pragma warning(disable:4127) // conditional expression is constant
+ 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.
-#include <setjmp.h>
+ 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"
-#pragma warning(disable:4244) /* 96/Jan/10 */
-
/* following bit used to be end of tex1.c */
-
#ifdef STAT
/* sec 0284 */
void restore_trace_(halfword p, char * s)
print_char('}');
end_diagnostic(false);
}
-#endif /* STAT */
+#endif
/* sec 0281 */
void unsave (void)
{
if (cur_level > level_one)
{
decr(cur_level);
- while (true) {
+
+ while (true)
+ {
decr(save_ptr);
if (save_type(save_ptr) == level_boundary)
#ifdef STAT
if (tracing_restores > 0)
restore_trace(p, "retaining");
-#endif /* STAT */
+#endif
}
else
{
#ifdef STAT
if (tracing_restores > 0)
restore_trace(p, "restoring");
-#endif /* STAT */
+#endif
}
else if (xeq_level[p] != level_one)
{
eqtb[p] = save_stack[save_ptr];
- xeq_level[p] = l; /* l may be used without having been ... */
+ xeq_level[p] = l;
#ifdef STAT
if (tracing_restores > 0)
restore_trace(p, "restoring");
-#endif /* STAT */
+#endif
}
else
{
#ifdef STAT
if (tracing_restores > 0)
restore_trace(p, "retaining");
-#endif /* STAT */
+#endif
}
}
}
else
{
confusion("curlevel");
- return; // abort_flag set
+ return;
}
}
/* This is where the old tex2.c used to start */
"reverted to the magnification you used earlier on this run.");
int_error(mag_set);
geq_word_define(int_base + mag_code, mag_set);
- }
+ }
+
if ((mag <= 0) || (mag > 32768L))
{
print_err("Illegal magnification has been changed to 1000");
int_error(mag);
geq_word_define(int_base + mag_code, 1000);
}
+
mag_set = mag;
}
/* sec 0295 */
print_char(':');
print_ln();
token_show(cur_chr);
- }
+ }
else if (cur_cmd == top_bot_mark)
{
print_char(':');
{
begin_diagnostic();
print_nl("{");
+
if (mode != shown_mode)
{
print_mode(mode);
print_string(": ");
shown_mode = mode;
}
+
print_cmd_chr(cur_cmd, cur_chr);
print_char('}');
end_diagnostic(false);
{
char old_setting;
integer nn;
- bool bottomline;
+ boolean bottomline;
integer i;
integer j;
integer l;
input_stack[base_ptr] = cur_input;
nn = -1;
bottomline = false;
- while (true) {
+
+ while (true)
+ {
cur_input = input_stack[base_ptr];
- if ((cur_input.state_field != 0))
+
+ if ((state != 0))
if ((cur_input.name_field > 17) || (base_ptr == 0))
bottomline = true;
+
if ((base_ptr == input_ptr) || bottomline || (nn < error_context_lines))
{
- if ((base_ptr == input_ptr) || (cur_input.state_field != token_list) ||
- (cur_input.index_field != backed_up) || (cur_input.loc_field != 0))
+ if ((base_ptr == input_ptr) || (state != token_list) ||
+ (index != backed_up) || (loc != 0))
{
tally = 0;
old_setting = selector;
- if (cur_input.state_field != 0)
+
+ if (state != 0)
{
if (cur_input.name_field <= 17)
if ((cur_input.name_field == 0))
print_int(cur_input.name_field - 1);
print_char('>');
}
- else {
+ else
+ {
if (c_style_flag)
{
print_ln();
- /* show current input file name - ignore if from terminal */
- if (cur_input.name_field > 17) /* redundant ? */
+
+ if (cur_input.name_field > 17)
print(cur_input.name_field);
+
print_char('(');
- print_int(line); /* line number */
+ print_int(line);
print_char(')');
print_char(' ');
print_char(':');
}
else
{
- print_nl("l."); /* l. ? 573 ????? 98/Dec/8 check ! */
- print_int(line); /* line number */
+ print_nl("l.");
+ print_int(line);
}
}
+
print_char(' ');
+
{
l = tally;
tally = 0;
selector = pseudo;
trick_count = 1000000L;
}
- if (buffer[cur_input.limit_field] == end_line_char)
- j = cur_input.limit_field;
+
+ if (buffer[limit] == end_line_char)
+ j = limit;
else
- j = cur_input.limit_field + 1;
+ j = limit + 1;
+
if (j > 0)
- for (i = cur_input.start_field; i <= j - 1; i++)
+ for (i = start; i <= j - 1; i++)
{
- if (i == cur_input.loc_field)
+ if (i == loc)
{
first_count = tally;
trick_count = tally + 1 + error_line - half_error_line;
+
if (trick_count < error_line)
trick_count = error_line;
}
}
else
{
- switch (cur_input.index_field)
+ switch (index)
{
case parameter:
print_nl("<argument> ");
break;
+
case u_template:
case v_template:
print_nl("<template> ");
break;
+
case backed_up:
- if (cur_input.loc_field == 0)
+ if (loc == 0)
print_nl("<recently read> ");
else
print_nl("<to be read again> ");
break;
+
case inserted:
print_nl("<inserted text> ");
break;
+
case macro:
print_ln();
print_cs(cur_input.name_field);
break;
+
case output_text:
print_nl("<output> ");
break;
+
case every_par_text:
print_nl("<everypar> ");
break;
+
case every_math_text:
print_nl("<everymath> ");
break;
+
case every_display_text:
print_nl("<everydisplay> ");
break;
+
case every_hbox_text:
print_nl("<everyhbox> ");
break;
+
case every_vbox_text:
print_nl("<everyvbox> ");
break;
+
case every_job_text:
print_nl("<everyjob> ");
break;
+
case every_cr_text:
print_nl("<everycr> ");
break;
+
case mark_text:
print_nl("<mark> ");
break;
+
case write_text:
print_nl("<write> ");
break;
+
default:
print_nl("?");
break;
}
+
{
l = tally;
tally = 0;
selector = pseudo;
trick_count = 1000000L;
}
- if (cur_input.index_field < macro)
- show_token_list(cur_input.start_field, cur_input.loc_field, 100000L);
+
+ if (index < macro)
+ show_token_list(start, loc, 100000L);
else
- show_token_list(link(cur_input.start_field), cur_input.loc_field, 100000L);
+ show_token_list(link(start), loc, 100000L);
}
+
selector = old_setting;
+
if (trick_count == 1000000L)
{
first_count = tally;
trick_count = tally + 1 + error_line - half_error_line;
+
if (trick_count < error_line)
trick_count = error_line;
}
print_nl("...");
incr(nn);
}
+
if (bottomline)
goto lab30;
+
decr(base_ptr);
}
lab30:
cur_input = input_stack[input_ptr];
}
-#pragma optimize("g", off) /* 98/Dec/10 experiment */
+//#pragma optimize("g", off) /* 98/Dec/10 experiment */
/* sec 0323 */
void begin_token_list_ (halfword p, quarterword t)
{
if (input_ptr > max_in_stack)
{
max_in_stack = input_ptr;
+
#ifdef ALLOCATEINPUTSTACK
if (input_ptr == current_stack_size)
input_stack = realloc_input_stack(increment_stack_size);
- if (input_ptr == current_stack_size)
- { /* check again after allocation */
+
+ if (input_ptr == current_stack_size) /* check again after allocation */
+ {
overflow("input stack size", current_stack_size);
return; // abort_flag set
}
#else
- if (input_ptr == stack_size)
- { /* input stack - not dynamic */
+ if (input_ptr == stack_size) /* input stack - not dynamic */
+ {
overflow("input stack size", stack_size);
return; // abort_flag set
}
#endif
}
+
input_stack[input_ptr] = cur_input;
incr(input_ptr);
}
- cur_input.state_field = token_list;
- cur_input.start_field = p;
- cur_input.index_field = t;
+
+ state = token_list;
+ start = p;
+ index = t;
+
if (t >= macro)
{
add_token_ref(p);
+
if (t == macro)
- cur_input.limit_field = param_ptr;
+ limit = param_ptr;
else
{
- cur_input.loc_field = link(p);
+ loc = link(p);
+
if (tracing_macros > 1)
{
begin_diagnostic();
print_nl("");
+
switch (t)
{
case mark_text:
print_esc("mark");
break;
+
case write_text:
print_esc("write");
break;
+
default:
print_cmd_chr(assign_toks, t + (hash_size + 1307));
break;
}
+
print_string("->");
token_show(p);
end_diagnostic(false);
}
}
else
- cur_input.loc_field = p;
+ loc = p;
}
-#pragma optimize("", on) /* 98/Dec/10 experiment */
+//#pragma optimize("", on) /* 98/Dec/10 experiment */
/* sec 0324 */
void end_token_list (void)
{
- if (cur_input.index_field >= backed_up)
+ if (index >= backed_up)
{
- if (cur_input.index_field <= inserted)
- flush_list(cur_input.start_field);
+ if (index <= inserted)
+ flush_list(start);
else
{
- delete_token_ref(cur_input.start_field);
- if (cur_input.index_field == macro)
- while (param_ptr > cur_input.limit_field) {
+ delete_token_ref(start);
+ if (index == macro)
+ while (param_ptr > limit)
+ {
decr(param_ptr);
flush_list(param_stack[param_ptr]);
}
}
}
- else if (cur_input.index_field == u_template)
+ else if (index == u_template)
if (align_state > 500000L)
align_state = 0;
- else {
+ else
+ {
fatal_error("(interwoven alignment preambles are not allowed)");
return; // abort_flag set
}
- {
- decr(input_ptr);
- cur_input = input_stack[input_ptr];
- }
- {
- if (interrupt != 0)
- {
- pause_for_instructions();
- }
- }
+
+ pop_input();
+ check_interrupt();
}
/* sec 0325 */
void back_input (void)
{
halfword p;
- while ((cur_input.state_field == 0) && (cur_input.loc_field == 0) &&
- (cur_input.index_field != v_template)) {
+
+ while ((state == 0) && (loc == 0) &&
+ (index != v_template))
+ {
end_token_list();
}
+
p = get_avail();
info(p) = cur_tok;
- if (cur_tok < 768)
- if (cur_tok < 512)
+
+ if (cur_tok < right_brace_limit)
+ if (cur_tok < left_brace_limit)
decr(align_state);
else
incr(align_state);
+
{
if (input_ptr > max_in_stack)
{
#ifdef ALLOCATEINPUTSTACK
if (input_ptr == current_stack_size)
input_stack = realloc_input_stack(increment_stack_size);
- if (input_ptr == current_stack_size)
- { /* check again after allocation */
+
+ if (input_ptr == current_stack_size) /* check again after allocation */
+ {
overflow("input stack size", current_stack_size);
return; // abort_flag set
}
#else
- if (input_ptr == stack_size)
- { /* stack size - not dynamic */
+ if (input_ptr == stack_size) /* stack size - not dynamic */
+ {
overflow("input stack size", stack_size);
return; // abort_flag set
}
input_stack[input_ptr] = cur_input;
incr(input_ptr);
}
- cur_input.state_field = token_list;
- cur_input.start_field = p;
- cur_input.index_field = backed_up;
- cur_input.loc_field = p;
+
+ state = token_list;
+ start = p;
+ index = backed_up;
+ loc = p;
}
/* sec 0327 */
void back_error (void)
{
OK_to_interrupt = false;
back_input();
- cur_input.index_field = inserted;
+ index = inserted;
OK_to_interrupt = true;
error();
}
#ifdef ALLOCATEBUFFER
if (first == current_buf_size)
buffer = realloc_buffer(increment_buf_size);
- if (first == current_buf_size)
- { /* check again after allocation */
+
+ if (first == current_buf_size) /* check again after allocation */
+ {
overflow("buffer size", current_buf_size);
return; // abort_flag set
}
input_stack[input_ptr] = cur_input;
incr(input_ptr);
}
- cur_input.index_field = in_open;
- line_stack[cur_input.index_field] = line;
- cur_input.start_field = first;
- cur_input.state_field = 1;
+ index = in_open;
+ line_stack[index] = line;
+ start = first;
+ state = 1;
cur_input.name_field = 0;
}
/* sec 0329 */
void end_file_reading (void)
{
- first = cur_input.start_field;
- line = line_stack[cur_input.index_field];
+ first = start;
+ line = line_stack[index];
+
if (cur_input.name_field > 17)
- (void) a_close(input_file[cur_input.index_field]);
- {
- decr(input_ptr);
- cur_input = input_stack[input_ptr];
- }
+ a_close(input_file[index]);
+
+ pop_input();
decr(in_open);
}
/* called only form tex0.c */
/* sec 0330 */
void clear_for_error_prompt (void)
{
- while ((cur_input.state_field != 0) &&
- (cur_input.name_field == 0) &&
- (input_ptr > 0) &&
- (cur_input.loc_field > cur_input.limit_field))
+ while ((state != 0) &&
+ (cur_input.name_field == 0) && (input_ptr > 0) &&
+ (loc > limit))
end_file_reading();
+
print_ln();
}
/* sec 0336 */
if (scanner_status != 0)
{
deletions_allowed = false;
+
if (cur_cs != 0)
{
- if ((cur_input.state_field == 0) ||
- (cur_input.name_field < 1) ||
- (cur_input.name_field > 17))
+ if ((state == 0) || (cur_input.name_field < 1) || (cur_input.name_field > 17))
{
p = get_avail();
- info(p) = 4095 + cur_cs;
- begin_token_list(p, 3);
+ info(p) = cs_token_flag + cur_cs;
+ back_list(p);
}
+
cur_cmd = spacer;
cur_chr = ' ';
}
if (scanner_status > skipping)
{
runaway();
+
if (cur_cs == 0)
print_err("File ended");
else
cur_cs = 0;
print_err("Forbidden control sequence found");
}
+
print_string(" while scanning ");
p = get_avail();
+
switch (scanner_status)
{
case defining:
print_string("definition");
- info(p) = 637;
+ info(p) = right_brace_token + '}';
break;
+
case matching:
print_string("use");
info(p) = par_token;
long_state = outer_call;
break;
+
case aligning:
print_string("preamble");
- info(p) = 637;
+ info(p) = right_brace_token + '}';
q = p;
p = get_avail();
link(p) = q;
-/* mem[p].hh.v.LH = (hash_size + 4610); */
-/* mem[p].hh.v.LH = (hash_size + 4095 + 515); */
- info(p) = (hash_size + hash_extra + 4095 + 515); /*96/Jan/10*/
+ info(p) = cs_token_flag + frozen_cr; /*96/Jan/10*/
align_state = -1000000L;
break;
+
case absorbing:
print_string("text");
- info(p) = 637;
+ info(p) = right_brace_token + '}';
break;
}
- begin_token_list(p, 4);
+ ins_list(p);
print_string(" of ");
sprint_cs(warning_index);
help4("I suspect you have forgotten a `}', causing me",
help3("A forbidden control sequence occurred in skipped text.",
"This kind of error happens when you say `\\if...' and forget",
"the matching `\\fi'. I've inserted a `\\fi'; this might work.");
+
if (cur_cs != 0)
cur_cs = 0;
else
help_line[2] = "The file ended while I was skipping conditional text.";
-/* cur_tok = (hash_size + 4613); */
-/* cur_tok = (hash_size + 4095 + 518); */
- cur_tok = (hash_size + hash_extra + 4095 + 518); /* 96/Jan/10 */
+
+ cur_tok = cs_token_flag + frozen_fi; /* 96/Jan/10 */
ins_error();
}
deletions_allowed = true;
}
}
-/*****************************************************************************/
-/* get_next() moved from here to end for pragma optimize reasons 96/Sep/12 */
-void get_next(void);
-/*****************************************************************************/
/* sec 0363 */
void firm_up_the_line (void)
{
integer k;
- cur_input.limit_field = last;
+ limit = last;
+
if (pausing > 0)
- if (interaction > 1)
+ if (interaction > nonstop_mode)
{
;
print_ln();
- if (cur_input.start_field < cur_input.limit_field)
- for (k = cur_input.start_field; k <= cur_input.limit_field - 1; k++)
+
+ if (start < limit)
+ for (k = start; k <= limit - 1; k++)
print(buffer[k]);
- first = cur_input.limit_field;
- {
- ;
- print_string("=>");
- term_input("=>", 0);
- }
+
+ first = limit;
+ prompt_input("=>");
+
if (last > first)
{
for (k = first; k <= last - 1; k++)
- buffer[k + cur_input.start_field - first] = buffer[k];
- cur_input.limit_field = cur_input.start_field + last - first;
+ buffer[k + start - first] = buffer[k];
+
+ limit = start + last - first;
}
}
}
no_new_control_sequence = false;
get_next();
no_new_control_sequence = true;
+
if (cur_cs == 0)
cur_tok = (cur_cmd * 256) + cur_chr;
else
- cur_tok = 4095 + cur_cs;
+ cur_tok = cs_token_flag + cur_cs;
}
/* sec 0389 */
void macro_call (void)
halfword s;
halfword t;
halfword u, v;
- halfword rbraceptr;
+ halfword rbrace_ptr;
small_number n;
halfword unbalance;
halfword m;
- halfword refcount;
- small_number savescannerstatus;
- halfword savewarningindex;
+ halfword ref_count;
+ small_number save_scanner_status;
+ halfword save_warning_index;
ASCII_code match_chr;
- savescannerstatus = scanner_status;
- savewarningindex = warning_index;
+ save_scanner_status = scanner_status;
+ save_warning_index = warning_index;
warning_index = cur_cs;
- refcount = cur_chr;
- r = link(refcount);
+ ref_count = cur_chr;
+ r = link(ref_count);
n = 0;
if (tracing_macros > 0)
begin_diagnostic();
print_ln();
print_cs(warning_index);
- token_show(refcount);
+ token_show(ref_count);
end_diagnostic(false);
}
- if (info(r) != 3584)
+
+ if (info(r) != end_match_token)
{
scanner_status = matching;
unbalance = 0;
long_state = eq_type(cur_cs);
+
if (long_state >= outer_call)
long_state = long_state - 2;
- do {
- link(temp_head) = 0;
- if ((info(r) > 3583) || (info(r) < 3328))
- s = 0;
- else
- {
- match_chr = info(r) - 3328;
- s = link(r);
- r = s;
- p = temp_head;
- m = 0;
- }
-lab22:
- get_token();
- if (cur_tok == info(r))
+
+ do
{
- r = link(r);
- if ((info(r) >= 3328) && (info(r) <= 3584))
+ link(temp_head) = 0;
+
+ if ((info(r) > match_token + 255) || (info(r) < match_token))
+ s = 0;
+ else
{
- if (cur_tok < 512)
- decr(align_state);
- goto lab40;
+ match_chr = info(r) - match_token;
+ s = link(r);
+ r = s;
+ p = temp_head;
+ m = 0;
}
- else
- goto lab22;
- }
- if (s != r)
- if (s == 0)
+lab22:
+ get_token();
+
+ if (cur_tok == info(r))
{
- print_err("Use of ");
- sprint_cs(warning_index);
- print_string(" doesn't match its definition");
- help4("If you say, e.g., `\\def\\a1{...}', then you must always",
+ r = link(r);
+
+ if ((info(r) >= match_token) && (info(r) <= end_match_token))
+ {
+ if (cur_tok < left_brace_limit)
+ decr(align_state);
+
+ goto lab40;
+ }
+ else
+ goto lab22;
+ }
+
+ if (s != r)
+ if (s == 0)
+ {
+ print_err("Use of ");
+ sprint_cs(warning_index);
+ print_string(" doesn't match its definition");
+ help4("If you say, e.g., `\\def\\a1{...}', then you must always",
"put `1' after `\\a', since control sequence names are",
"made up of letters only. The macro here has not been",
"followed by the required stuff, so I'm ignoring it.");
- error();
- goto lab10;
- }
- else
- {
- t = s;
- do {
- {
- q = get_avail();
- mem[p].hh.v.RH = q;
- mem[q].hh.v.LH = mem[t].hh.v.LH;
- p = q;
- }
- incr(m);
- u = link(t);
- v = s;
- while (true) {
- if (u == r)
- if (cur_tok != info(v))
- goto lab30;
- else
+ error();
+ goto lab10;
+ }
+ else
+ {
+ t = s;
+ do
+ {
+ store_new_token(info(t));
+ incr(m);
+ u = link(t);
+ v = s;
+
+ while (true)
{
- r = link(v);
- goto lab22;
+ if (u == r)
+ if (cur_tok != info(v))
+ goto lab30;
+ else
+ {
+ r = link(v);
+ goto lab22;
+ }
+
+ if (info(u) != info(v))
+ goto lab30;
+
+ u = link(u);
+ v = link(v);
}
- if (info(u) != info(v))
- goto lab30;
- u = link(u);
- v = link(v);
- }
lab30:
- t = link(t);
- } while(!(t == r));
- r = s;
- }
- if (cur_tok == par_token)
- if (long_state != long_call)
- {
- if (long_state == call)
+ t = link(t);
+ }
+ while (!(t == r));
+
+ r = s;
+ }
+
+ if (cur_tok == par_token)
+ if (long_state != long_call)
{
- runaway();
- print_err("Paragraph ended before ");
- sprint_cs(warning_index);
- print_string("was complete");
- help3("I suspect you've forgotten a `}', causing me to apply this",
- "control sequence to too much text. How can we recover?",
- "My plan is to forget the whole thing and hope for the best.");
- back_error();
+ if (long_state == call)
+ {
+ runaway();
+ print_err("Paragraph ended before ");
+ sprint_cs(warning_index);
+ print_string("was complete");
+ help3("I suspect you've forgotten a `}', causing me to apply this",
+ "control sequence to too much text. How can we recover?",
+ "My plan is to forget the whole thing and hope for the best.");
+ back_error();
+ }
+
+ pstack[n] = link(temp_head);
+ align_state = align_state - unbalance;
+
+ for (m = 0; m <= n; m++)
+ flush_list(pstack[m]);
+
+ goto lab10;
}
- pstack[n] = link(temp_head);
- align_state = align_state - unbalance;
- for (m = 0; m <= n; m++)
- flush_list(pstack[m]);
- goto lab10;
- }
- if (cur_tok < 768)
- if (cur_tok < 512)
- {
- unbalance = 1;
- while (true) {
+
+ if (cur_tok < right_brace_limit)
+ if (cur_tok < left_brace_limit)
+ {
+ unbalance = 1;
+
+ while (true)
{
- {
- q = avail;
- if (q == 0)
- q = get_avail();
- else
+ fast_store_new_token(cur_tok);
+ get_token();
+
+ if (cur_tok == par_token)
+ if (long_state != long_call)
{
- avail = mem[q].hh.v.RH;
- mem[q].hh.v.RH = 0;
-#ifdef STAT
- incr(dyn_used);
-#endif /* STAT */
+ if (long_state == call)
+ {
+ runaway();
+ print_err("Paragraph ended before ");
+ sprint_cs(warning_index);
+ print_string(" was complete");
+ help3("I suspect you've forgotten a `}', causing me to apply this",
+ "control sequence to too much text. How can we recover?",
+ "My plan is to forget the whole thing and hope for the best.");
+ back_error();
+ }
+
+ pstack[n] = link(temp_head);
+ align_state = align_state - unbalance;
+
+ for (m = 0; m <= n; m++)
+ flush_list(pstack[m]);
+ goto lab10;
}
- }
- mem[p].hh.v.RH = q;
- mem[q].hh.v.LH = cur_tok;
- p = q;
- }
- get_token();
- if (cur_tok == par_token)
- if (long_state != long_call)
- {
- if (long_state == call)
+
+ if (cur_tok < right_brace_limit)
+ if (cur_tok < left_brace_limit)
+ incr(unbalance);
+ else
{
- runaway();
- print_err("Paragraph ended before ");
- sprint_cs(warning_index);
- print_string(" was complete");
- help3("I suspect you've forgotten a `}', causing me to apply this",
- "control sequence to too much text. How can we recover?",
- "My plan is to forget the whole thing and hope for the best.");
- back_error();
+ decr(unbalance);
+
+ if (unbalance == 0)
+ goto lab31;
}
- pstack[n] = link(temp_head);
- align_state = align_state - unbalance;
- for (m = 0; m <= n; m++)
- flush_list(pstack[m]);
- goto lab10;
- }
- if (cur_tok < 768)
- if (cur_tok < 512)
- incr(unbalance);
- else
- {
- decr(unbalance);
- if (unbalance == 0)
- goto lab31;
- }
- }
+ }
lab31:
- rbraceptr = p;
+ rbrace_ptr = p;
+ store_new_token(cur_tok);
+ }
+ else
{
- q = get_avail();
- mem[p].hh.v.RH = q;
- mem[q].hh.v.LH = cur_tok;
- p = q;
+ back_input();
+ print_err("Argument of ");
+ sprint_cs(warning_index);
+ print_string(" has an extra }");
+ help6("I've run across a `}' that doesn't seem to match anything.",
+ "For example, `\\def\\a#1{...}' and `\\a}' would produce",
+ "this error. If you simply proceed now, the `\\par' that",
+ "I've just inserted will cause me to report a runaway",
+ "argument that might be the root of the problem. But if",
+ "your `}' was spurious, just type `2' and it will go away.");
+ incr(align_state);
+ long_state = call;
+ cur_tok = par_token;
+ ins_error();
+ goto lab22;
}
- }
else
{
- back_input();
- print_err("Argument of ");
- sprint_cs(warning_index);
- print_string(" has an extra }");
- help6("I've run across a `}' that doesn't seem to match anything.",
- "For example, `\\def\\a#1{...}' and `\\a}' would produce",
- "this error. If you simply proceed now, the `\\par' that",
- "I've just inserted will cause me to report a runaway",
- "argument that might be the root of the problem. But if",
- "your `}' was spurious, just type `2' and it will go away.");
- incr(align_state);
- long_state = call;
- cur_tok = par_token;
- ins_error();
- goto lab22;
- }
- else
- {
- if (cur_tok == 2592)
- if (info(r) <= 3584)
- if (info(r) >= 3328)
- goto lab22;
- {
- q = get_avail();
- mem[p].hh.v.RH = q; /* p may be used without having ... */
- mem[q].hh.v.LH = cur_tok;
- p = q;
+ if (cur_tok == space_token)
+ if (info(r) <= end_match_token)
+ if (info(r) >= match_token)
+ goto lab22;
+
+ store_new_token(cur_tok);
}
- }
- incr(m); /* m may be used without having been ... */
- if (info(r) > 3584)
- goto lab22;
- if (info(r) < 3328)
- goto lab22;
+
+ incr(m); /* m may be used without having been ... */
+
+ if (info(r) > end_match_token)
+ goto lab22;
+
+ if (info(r) < match_token)
+ goto lab22;
lab40:
- if (s != 0)
- {
- if ((m == 1) && (info(p) < 768) && (p != temp_head))
- {
- link(rbraceptr) = 0; /* rbraceptr may be used without ... */
- free_avail(p);
- p = link(temp_head);
- pstack[n]= link(p);
- free_avail(p);
- }
- else
- pstack[n] = link(temp_head);
- incr(n);
- if (tracing_macros > 0)
+ if (s != 0)
{
- begin_diagnostic();
- //print_nl(match_chr); /* matchchar may be used without ... */
- print_nl(""); print(match_chr);
- print_int(n);
- print_string("<-");
- show_token_list(pstack[n - 1], 0, 1000);
- end_diagnostic(false);
+ if ((m == 1) && (info(p) < right_brace_limit) && (p != temp_head))
+ {
+ link(rbrace_ptr) = 0; /* rbrace_ptr may be used without ... */
+ free_avail(p);
+ p = link(temp_head);
+ pstack[n] = link(p);
+ free_avail(p);
+ }
+ else
+ pstack[n] = link(temp_head);
+
+ incr(n);
+
+ if (tracing_macros > 0)
+ {
+ begin_diagnostic();
+ //print_nl(match_chr); /* matchchar may be used without ... */
+ print_nl(""); print(match_chr);
+ print_int(n);
+ print_string("<-");
+ show_token_list(pstack[n - 1], 0, 1000);
+ end_diagnostic(false);
+ }
}
}
- } while(!(info(r) == 3584));
+ while (!(info(r) == end_match_token));
}
- while((cur_input.state_field == token_list) && (cur_input.loc_field == 0) &&
- (cur_input.index_field != v_template))
+ while ((state == token_list) && (loc == 0) &&
+ (index != v_template))
end_token_list();
- begin_token_list(refcount, macro);
+
+ begin_token_list(ref_count, macro);
cur_input.name_field = warning_index;
- cur_input.loc_field = link(r);
+ loc = link(r);
+
if (n > 0)
{
if (param_ptr + n > max_param_stack)
{
max_param_stack = param_ptr + n;
+
#ifdef ALLOCATEPARAMSTACK
if (max_param_stack > current_param_size)
param_stack = realloc_param_stack(increment_param_size);
- if (max_param_stack > current_param_size)
- { /* check again after allocation */
+
+ if (max_param_stack > current_param_size) /* check again after allocation */
+ {
overflow("parameter stack size", current_param_size);
return; // abort_flag set
}
}
#endif
}
+
for (m = 0; m <= n - 1; m++)
param_stack[param_ptr + m] = pstack[m];
+
param_ptr = param_ptr + n;
}
lab10:
- scanner_status = savescannerstatus;
- warning_index = savewarningindex;
+ scanner_status = save_scanner_status;
+ warning_index = save_warning_index;
}
/* sec 0379 */
-void insert_relax (void)
+void insert_relax (void)
{
- cur_tok = 4095 + cur_cs;
+ cur_tok = cs_token_flag + cur_cs;
back_input();
-/* cur_tok = (hash_size + 4616); */
-/* cur_tok = (hash_size + 4095 + 521); */
- cur_tok = (hash_size + hash_extra + 4095 + 521); /* 96/Jan/10 */
+ cur_tok = cs_token_flag + frozen_relax; /* 96/Jan/10 */
back_input();
- cur_input.index_field = inserted;
+ index = inserted;
}
/* sec 0366 */
void expand (void)
{
halfword t;
- halfword p, q, r;
+ pointer p, q, r;
integer j;
- integer cvbackup;
- small_number cvlbackup, radixbackup, cobackup;
- halfword backupbackup;
- small_number savescannerstatus;
-
- cvbackup = cur_val;
- cvlbackup = cur_val_level;
- radixbackup = radix;
- cobackup = cur_order;
- backupbackup = link(backup_head);
+ integer cv_backup;
+ small_number cvl_backup, radix_backup, co_backup;
+ halfword backup_backup;
+ small_number save_scanner_status;
+
+ cv_backup = cur_val;
+ cvl_backup = cur_val_level;
+ radix_backup = radix;
+ co_backup = cur_order;
+ backup_backup = link(backup_head);
+
if (cur_cmd < call)
{
if (tracing_commands > 1)
show_cur_cmd_chr();
+
switch (cur_cmd)
{
case top_bot_mark:
if (cur_mark[cur_chr] != 0)
begin_token_list(cur_mark[cur_chr], mark_text);
break;
+
case expand_after:
get_token();
t = cur_tok;
get_token();
+
if (cur_cmd > max_command)
expand();
else
back_input();
+
cur_tok = t;
back_input();
break;
+
case no_expand:
- savescannerstatus = scanner_status;
+ save_scanner_status = scanner_status;
scanner_status = normal;
get_token();
- scanner_status = savescannerstatus;
+ scanner_status = save_scanner_status;
t = cur_tok;
back_input();
- if (t >= 4095) /* if t>=cs_token_flag then */
+
+ if (t >= cs_token_flag)
{
-/* begin p:=get_avail; info(p):=cs_token_flag+frozen_dont_expand; */
p = get_avail();
-/* mem[p].hh.v.LH = (hash_size + 4618); */
-/* mem[p].hh.v.LH = (hash_size + 4095 + 523); */
- mem[p].hh.v.LH = (hash_size + hash_extra + 4095 + 523); /*96/Jan/10*/
- mem[p].hh.v.RH = cur_input.loc_field;
- cur_input.start_field = p;
- cur_input.loc_field = p;
+ info(p) = cs_token_flag + frozen_dont_expand; /*96/Jan/10*/
+ link(p) = loc;
+ start = p;
+ loc = p;
}
break;
+
case cs_name:
r = get_avail();
p = r;
- do {
- get_x_token();
- if (cur_cs == 0)
+ do
{
- q = get_avail();
- mem[p].hh.v.RH = q;
- mem[q].hh.v.LH = cur_tok;
- p = q;
+ get_x_token();
+
+ if (cur_cs == 0)
+ store_new_token(cur_tok);
}
- } while(!(cur_cs != 0));
+ while (!(cur_cs != 0));
+
if (cur_cmd != end_cs_name)
{
print_err("Missing ");
"not appear between \\csname and \\endcsname.");
back_error();
}
+
j = first;
p = link(r);
- while (p != 0) { /* while p<>null do l.7742 */
+
+ while (p != 0)
+ {
if (j >= max_buf_stack)
{
max_buf_stack = j + 1;
+
#ifdef ALLOCATEBUFFER
if (max_buf_stack == current_buf_size)
buffer = realloc_buffer (increment_buf_size);
- if (max_buf_stack == current_buf_size)
- { /* check again after allocation */
+
+ if (max_buf_stack == current_buf_size) /* check again after allocation */
+ {
overflow("buffer size", current_buf_size);
return; // abort_flag set
}
}
#endif
}
+
buffer[j] = info(p) % 256;
incr(j);
p = link(p);
}
+
if (j > first + 1)
{
no_new_control_sequence = false;
cur_cs = null_cs;
else
cur_cs = single_base + buffer[first];
+
flush_list(r);
+
if (eq_type(cur_cs) == undefined_cs)
{
eq_define(cur_cs, relax, 256);
}
- cur_tok = cur_cs + 4095;
+
+ cur_tok = cur_cs + cs_token_flag;
back_input();
break;
+
case convert:
conv_toks();
break;
+
case the:
ins_the_toks();
break;
+
case if_test:
conditional();
break;
+
case fi_or_else:
if (cur_chr > if_limit)
if (if_limit == 1)
}
else
{
- while(cur_chr != 2)
+ while (cur_chr != fi_code)
pass_text();
+
{
p = cond_ptr;
- if_line = mem[p + 1].cint;
- cur_if = mem[p].hh.b1;
- if_limit = mem[p].hh.b0;
- cond_ptr = mem[p].hh.v.RH;
- free_node(p, 2);
+ if_line = if_line_field(p);
+ cur_if = subtype(p);
+ if_limit = type(p);
+ cond_ptr = link(p);
+ free_node(p, if_node_size);
}
}
break;
+
case input:
if (cur_chr > 0)
force_eof = true;
else if (name_in_progress)
insert_relax();
- else start_input();
+ else
+ start_input();
break;
+
default:
print_err("Undefined control sequence");
help5("The control sequence at the end of the top line",
}
else
{
-/* cur_tok = (hash_size + 4615); */
-/* cur_tok = (hash_size + 4095 + 520); */
- cur_tok = (hash_size + hash_extra + 4095 + 520); /* 96/Jan/10 */
+ cur_tok = cs_token_flag + frozen_endv; /* 96/Jan/10 */
back_input();
}
- cur_val = cvbackup;
- cur_val_level = cvlbackup;
- radix = radixbackup;
- cur_order = cobackup;
- link(backup_head) = backupbackup;
+
+ cur_val = cv_backup;
+ cur_val_level = cvl_backup;
+ radix = radix_backup;
+ cur_order = co_backup;
+ link(backup_head) = backup_backup;
}
/* sec 0380 */
void get_x_token (void)
{
lab20:
get_next();
+
if (cur_cmd <= max_command)
goto lab30;
+
if (cur_cmd >= call)
if (cur_cmd < end_template)
macro_call();
- else {
-/* cur_cs = (hash_size + 520); */
- cur_cs = (hash_size + hash_extra + 520); /* 96/Jan/10 */
+ else
+ {
+ cur_cs = frozen_endv;
cur_cmd = endv;
goto lab30;
}
else
expand();
+
goto lab20;
+
lab30:
if (cur_cs == 0)
cur_tok = (cur_cmd * 256) + cur_chr;
else
- cur_tok = 4095 + cur_cs;
+ cur_tok = cs_token_flag + cur_cs;
}
/* sec 0381 */
void x_token (void)
{
- while (cur_cmd > max_command) {
+ while (cur_cmd > max_command)
+ {
expand();
get_next();
}
+
if (cur_cs == 0)
cur_tok = (cur_cmd * 256) + cur_chr;
else
- cur_tok = 4095 + cur_cs;
+ cur_tok = cs_token_flag + cur_cs;
}
/* sec 0403 */
void scan_left_brace (void)
{
- do {
+ do
+ {
get_x_token();
- } while(!((cur_cmd != spacer) && (cur_cmd != relax)));
+ }
+ while (!((cur_cmd != spacer) && (cur_cmd != relax)));
if (cur_cmd != left_brace)
{
"so that I will find a matching right brace soon.",
"(If you're confused by all this, try typing `I}' now.)");
back_error();
- cur_tok = 379;
+ cur_tok = left_brace_token + '{';
cur_cmd = left_brace;
cur_chr = '{';
incr(align_state);
/* sec 0405 */
void scan_optional_equals (void)
{
- do {
+ do
+ {
get_x_token();
- } while(!(cur_cmd != spacer));
+ }
+ while (!(cur_cmd != spacer));
- if (cur_tok != 3133)
+ if (cur_tok != other_token + '=')
back_input();
}
/* sec 0407 */
-bool scan_keyword_(char * s)
+boolean scan_keyword(const char * s)
{
- register bool Result;
halfword p;
halfword q;
- char * k;
+ const char * k;
p = backup_head;
link(p) = 0;
k = s;
- while (*k) {
+ while (*k)
+ {
get_x_token();
- if ((cur_cs == 0) && ((cur_chr == (*k)) || (cur_chr == (*k) - 32)))
+
+ if ((cur_cs == 0) && ((cur_chr == (*k)) || (cur_chr == (*k) - 'a' + 'A')))
{
- {
- q = get_avail();
- mem[p].hh.v.RH = q;
- mem[q].hh.v.LH = cur_tok;
- p = q;
- }
+ store_new_token(cur_tok);
incr(k);
}
else if ((cur_cmd != spacer) || (p != backup_head))
{
back_input();
+
if (p != backup_head)
- begin_token_list(link(backup_head), 3);
- Result = false;
- return(Result);
+ back_list(link(backup_head));
+
+ return false;
}
}
+
flush_list(link(backup_head));
- Result = true;
- return Result;
+
+ return true;
}
/* sec 0408 */
void mu_error (void)
void scan_eight_bit_int (void)
{
scan_int();
+
if ((cur_val < 0) || (cur_val > 255))
{
print_err("Bad register code");
void scan_char_num (void)
{
scan_int();
+
if ((cur_val < 0) || (cur_val > 255))
{
print_err("Bad character code");
void scan_four_bit_int (void)
{
scan_int();
+
if ((cur_val < 0) || (cur_val > 15))
{
print_err("Bad number");
void scan_fifteen_bit_int (void)
{
scan_int();
+
if ((cur_val < 0) || (cur_val > 32767))
{
print_err("Bad mathchar");
void scan_twenty_seven_bit_int (void)
{
scan_int();
+
if ((cur_val < 0) || (cur_val > 134217727L)) /* 2^27 - 1 */
{
print_err("Bad delimiter code");
internal_font_number f;
halfword m;
- do {
+ do
+ {
get_x_token();
- } while (!(cur_cmd != spacer));
+ }
+ while (!(cur_cmd != spacer));
if (cur_cmd == def_font)
f = cur_font;
help2("I was looking for a control sequence whose",
"current meaning has been defined by \\font.");
back_error();
- f = 0;
+ f = null_font;
}
+
cur_val = f;
}
/* sec 0578 */
-void find_font_dimen_(bool writing)
+void find_font_dimen_(boolean writing)
{
internal_font_number f;
integer n;
n = cur_val;
scan_font_ident();
f = cur_val;
-/* if (n <= 0)*/ /* change 98/Oct/5 */
- if (n < 0 || (n == 0 && font_dimen_zero == 0))
+
+ if (n < 0 || (n == 0 && font_dimen_zero == 0)) /* change 98/Oct/5 */
cur_val = fmem_ptr;
else
{
-/* else begin if writing and(n<=space_shrink_code)and@|
- (n>=space_code)and(font_glue[f]<>null) then
- begin delete_glue_ref(font_glue[f]); l.11225 */
- if (writing && (n <= 4) && (n >= 2) && (font_glue[f]!= 0))
+ if (writing && (n <= space_shrink_code) && (n >= space_code) && (font_glue[f] != 0))
{
delete_glue_ref(font_glue[f]);
- font_glue[f]= 0; /* font_glue[f]:=null */
+ font_glue[f] = 0;
}
+
if (n > font_params[f])
if (f < font_ptr)
cur_val = fmem_ptr;
- else
- {
- do {
-/* *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** */
+ else
+ {
+ do
+ {
#ifdef ALLOCATEFONT
- if (fmem_ptr == current_font_mem_size)
- { /* 93/Nov/28 ??? */
- font_info = realloc_font_info(increment_font_mem_size);
- }
- if (fmem_ptr == current_font_mem_size)
- { /* 94/Jan/24 */
- overflow("font memory", current_font_mem_size); /* font memory */
- return; // abort_flag set
- }
+ if (fmem_ptr == current_font_mem_size)
+ font_info = realloc_font_info(increment_font_mem_size);
+
+ if (fmem_ptr == current_font_mem_size)
+ {
+ overflow("font memory", current_font_mem_size);
+ return;
+ }
#else
-/* *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** */
- if (fmem_ptr == font_mem_size)
- {
- overflow("font memory", font_mem_size); /* font memory */
- return; // abort_flag set
- }
+ if (fmem_ptr == font_mem_size)
+ {
+ overflow("font memory", font_mem_size);
+ return;
+ }
#endif
- font_info[fmem_ptr].cint = 0;
- incr(fmem_ptr);
- incr(font_params[f]);
- } while(!(n == font_params[f]));
- cur_val = fmem_ptr - 1;
- }
-/* else cur_val = n + param_base[f]; */ /* 98/Oct/5 */
- else if (n > 0)
- cur_val = n + param_base[f]; /* 98/Oct/5 */
- else cur_val = &font_check[f] - &font_info[0]; /* 98/Oct/5 */
-/* checksum = (((font_check[f].b0) << 8 | font_check[f].b1) << 8 |
- font_check[f].b2) << 8 | font_check[f].b3; */
- }
-/* compiler error: '-' : incompatible types - from 'union fmemoryword *' to 'struct fourunsignedchars *' */
+ font_info[fmem_ptr].cint = 0;
+ incr(fmem_ptr);
+ incr(font_params[f]);
+ }
+ while (!(n == font_params[f]));
+
+ cur_val = fmem_ptr - 1;
+ }
+ else if (n > 0)
+ cur_val = n + param_base[f];
+ }
+
if (cur_val == fmem_ptr)
{
print_err("Font ");
-/* print_esc(hash[(hash_size + 524) + f].v.RH); */
- //print_esc(hash[(hash_size + hash_extra + 524) + f].v.RH); /*96/Jan/10*/
- print_esc(""); print(hash[(hash_size + hash_extra + 524) + f].v.RH);
+ print_esc(""); print(font_id_text(f));
print_string(" has only ");
print_int(font_params[f]);
print_string(" fontdimen parameters");
error();
}
}
-/* NOTE: the above use of /fontdimen0 to access the checksum is a kludge */
-/* In future would be better to do this by allocating one more slot for */
-/* for parameters when a font is read rather than carry checksum separately */
-/* The above gets the value byte order reversed ... 98/Oct/5 */
/* sec 0413 */
-void scan_something_internal_(small_number level, bool negative)
+void scan_something_internal_(small_number level, boolean negative)
{
halfword m;
integer p;
+
m = cur_chr;
switch (cur_cmd)
{
case def_code:
- scan_char_num();
- if (m == math_code_base)
- {
- cur_val = math_code(cur_val);
- cur_val_level = 0;
- }
- else if (m < math_code_base)
- {
- cur_val = equiv(m + cur_val);
- cur_val_level = 0;
- }
- else
{
- cur_val = eqtb[m + cur_val].cint;
- cur_val_level = 0;
+ scan_char_num();
+
+ if (m == math_code_base)
+ scanned_result(math_code(cur_val), int_val);
+ else if (m < math_code_base)
+ scanned_result(equiv(m + cur_val), int_val);
+ else
+ scanned_result(eqtb[m + cur_val].cint, int_val);
}
break;
- case toks_register:
- case assign_toks:
- case def_family:
- case set_font:
- case def_font:
- if (level != 5)
- {
- 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();
- {
- cur_val = 0;
- cur_val_level = 1;
- }
- }
- else if (cur_cmd <= assign_toks)
- {
- if (cur_cmd < assign_toks)
+
+ case toks_register:
+ case assign_toks:
+ case def_family:
+ case set_font:
+ case def_font:
+ if (level != tok_val)
{
- scan_eight_bit_int();
- m = toks_base + cur_val;
+ 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();
+ scanned_result(0, dimen_val);
}
+ else if (cur_cmd <= assign_toks)
{
- cur_val = eqtb[m].hh.v.RH;
- cur_val_level = 5;
+ if (cur_cmd < assign_toks)
+ {
+ scan_eight_bit_int();
+ m = toks_base + cur_val;
+ }
+
+ scanned_result(equiv(m), tok_val);
}
- }
- else
- {
- back_input();
- scan_font_ident();
+ else
{
-/* cur_val = (hash_size + 524) + cur_val; */
- cur_val = (hash_size + hash_extra + 524) + cur_val; /* 96/Jan/10 */
- cur_val_level = 4;
+ back_input();
+ scan_font_ident();
+ scanned_result(font_id_base + cur_val, ident_val);
}
- }
- break;
- case assign_int:
- {
- cur_val = eqtb[m].cint;
- cur_val_level = 0;
- }
- break;
- case assign_dimen:
- {
- cur_val = eqtb[m].cint;
- cur_val_level = 1;
- }
- break;
- case assign_glue:
- {
- cur_val = eqtb[m].hh.v.RH;
- cur_val_level = 2;
- }
- break;
- case assign_mu_glue:
- {
- cur_val = eqtb[m].hh.v.RH;
- cur_val_level = 3;
- }
- break;
- case set_aux:
- if (abs(mode)!= m)
- {
- print_err("Improper ");
- print_cmd_chr(set_aux, m);
- help4("You can refer to \\spacefactor only in horizontal mode;",
- "you can refer to \\prevdepth only in vertical mode; and",
- "neither of these is meaningful inside \\write. So",
- "I'm forgetting what you said and using zero instead.");
- error();
- if (level != 5)
+ break;
+
+ case assign_int:
+ scanned_result(eqtb[m].cint, int_val);
+ break;
+
+ case assign_dimen:
+ scanned_result(eqtb[m].cint, dimen_val);
+ break;
+
+ case assign_glue:
+ scanned_result(equiv(m), glue_val);
+ break;
+
+ case assign_mu_glue:
+ scanned_result(equiv(m), mu_val);
+ break;
+
+ case set_aux:
+ if (abs(mode) != m)
{
- cur_val = 0;
- cur_val_level = 1;
+ print_err("Improper ");
+ print_cmd_chr(set_aux, m);
+ help4("You can refer to \\spacefactor only in horizontal mode;",
+ "you can refer to \\prevdepth only in vertical mode; and",
+ "neither of these is meaningful inside \\write. So",
+ "I'm forgetting what you said and using zero instead.");
+ error();
+
+ if (level != tok_val)
+ scanned_result(0, dimen_val);
+ else
+ scanned_result(0, int_val);
}
+ else if (m == vmode)
+ scanned_result(prev_depth, dimen_val);
+ else
+ scanned_result(space_factor, int_val);
+ break;
+
+ case set_prev_graf:
+ if (mode == 0)
+ scanned_result(0, int_val);
else
{
- cur_val = 0;
- cur_val_level = 0;
+ nest[nest_ptr] = cur_list;
+ p = nest_ptr;
+
+ while (abs(nest[p].mode_field) != vmode)
+ decr(p);
+
+ scanned_result(nest[p].pg_field, int_val);
}
- }
- else if (m == 1)
- {
- cur_val = cur_list.aux_field.cint;
- cur_val_level = 1;
- }
- else
- {
- cur_val = space_factor;
- cur_val_level = 0;
- }
- break;
- case set_prev_graf:
- if (mode == 0)
- {
- cur_val = 0;
- cur_val_level = 0;
- }
- else
- {
- nest[nest_ptr] = cur_list;
- p = nest_ptr;
- while (abs(nest[p].mode_field)!= 1)
- decr(p);
+ break;
+
+ case set_page_int:
{
- cur_val = nest[p].pg_field;
+ if (m == 0)
+ cur_val = dead_cycles;
+ else
+ cur_val = insert_penalties;
+
cur_val_level = 0;
}
- }
- break;
- case set_page_int:
- {
- if (m == 0)
- cur_val = dead_cycles;
- else
- cur_val = insert_penalties;
- cur_val_level = 0;
- }
- break;
- case set_page_dimen:
- {
- if ((page_contents == 0) && (! output_active))
- if (m == 0)
- cur_val = 1073741823L; /* 2^30 - 1 */
+ break;
+
+ case set_page_dimen:
+ {
+ if ((page_contents == 0) && (! output_active))
+ if (m == 0)
+ cur_val = max_dimen;
+ else
+ cur_val = 0;
else
- cur_val = 0;
- else
- cur_val = page_so_far[m];
- cur_val_level = 1;
- }
- break;
- case set_shape:
- {
- if (par_shape_ptr == 0)
- cur_val = 0;
- else
- cur_val = mem[par_shape_ptr].hh.v.LH;
- cur_val_level = 0;
- }
- break;
- case set_box_dimen:
- {
- scan_eight_bit_int();
- if (eqtb[box_base + cur_val].hh.v.RH == 0)
- cur_val = 0;
- else
- cur_val = mem[eqtb[(hash_size + 1578) + cur_val].hh.v.RH + m].cint;
- cur_val_level = 1;
- }
- break;
- case char_given:
- case math_given:
- {
- cur_val = cur_chr;
- cur_val_level = 0;
- }
- break;
- case assign_font_dimen:
- {
- find_font_dimen(false);
- font_info[fmem_ptr].cint = 0;
+ cur_val = page_so_far[m];
+
+ cur_val_level = dimen_val;
+ }
+ break;
+
+ case set_shape:
{
- cur_val = font_info[cur_val].cint;
- cur_val_level = 1;
+ if (par_shape_ptr == 0)
+ cur_val = 0;
+ else
+ cur_val = info(par_shape_ptr);
+
+ cur_val_level = int_val;
}
- }
- break;
- case assign_font_int:
- {
- scan_font_ident();
- if (m == 0)
+ break;
+
+ case set_box_dimen:
{
- cur_val = hyphen_char[cur_val];
- cur_val_level = 0;
+ scan_eight_bit_int();
+
+ if (box(cur_val) == 0)
+ cur_val = 0;
+ else
+ cur_val = mem[box(cur_val) + m].cint;
+
+ cur_val_level = dimen_val;
}
- else
+ break;
+
+ case char_given:
+ case math_given:
+ scanned_result(cur_chr, int_val);
+ break;
+
+ case assign_font_dimen:
{
- cur_val = skew_char[cur_val];
- cur_val_level = 0;
+ find_font_dimen(false);
+ font_info[fmem_ptr].cint = 0;
+ scanned_result(font_info[cur_val].cint, dimen_val);
}
- }
- break;
- case tex_register:
- {
- scan_eight_bit_int();
- switch(m)
+ break;
+
+ case assign_font_int:
{
- case 0:
- cur_val = eqtb[(hash_size + 3218) + cur_val].cint;
- break;
- case 1:
- cur_val = eqtb[(hash_size + 3751) + cur_val].cint;
- break;
- case 2:
- cur_val = eqtb[(hash_size + 800) + cur_val].hh.v.RH;
- break;
- case 3:
- cur_val = eqtb[(hash_size + 1056) + cur_val].hh.v.RH;
- break;
+ scan_font_ident();
+
+ if (m == 0)
+ scanned_result(hyphen_char[cur_val], int_val);
+ else
+ scanned_result(skew_char[cur_val], int_val);
}
- cur_val_level = m;
- }
- break;
- case last_item:
- if (cur_chr > 2)
- {
- if (cur_chr == 3)
- cur_val = line;
- else
- cur_val = last_badness;
- cur_val_level = 0;
- }
- else
- {
- if (cur_chr == 2)
- cur_val = 0;
- else
- cur_val = 0;
- cur_val_level = cur_chr;
- if (!(tail >= hi_mem_min) && (mode != 0))
- switch(cur_chr)
+ break;
+
+ case tex_register:
+ {
+ scan_eight_bit_int();
+
+ switch(m)
{
- case 0:
- if (mem[tail].hh.b0 == 12)
- cur_val = mem[tail + 1].cint;
+ case int_val:
+ cur_val = count(cur_val);
break;
- case 1:
- if (mem[tail].hh.b0 == 11)
- cur_val = mem[tail + 1].cint;
- break;
- case 2:
- if (mem[tail].hh.b0 == 10)
- {
- cur_val = mem[tail + 1].hh.v.LH;
- if (mem[tail].hh.b1 == 99)
- cur_val_level = 3;
- }
- break;
- }
- else if ((mode == 1) && (tail == cur_list.head_field))
- switch (cur_chr)
- {
- case 0:
- cur_val = last_penalty;
+
+ case dimen_val:
+ cur_val = dimen(cur_val);
break;
- case 1:
- cur_val = last_kern;
+
+ case glue_val:
+ cur_val = skip(cur_val);
break;
- case 2:
-/* if (last_glue != 262143L) */ /* NO! */
- if (last_glue != empty_flag)
- cur_val = last_glue;
+
+ case mu_val:
+ cur_val = mu_skip(cur_val);
break;
}
- }
- break;
- default:
- {
- print_err("You can't use `");
- print_cmd_chr(cur_cmd, cur_chr);
- print_string("' after ");
- print_esc("the");
- help1("I'm forgetting what you said and using zero instead.");
- error();
- if (level != 5)
+
+ cur_val_level = m;
+ }
+ break;
+
+ case last_item:
+ if (cur_chr > glue_val)
{
- cur_val = 0;
- cur_val_level = 1;
+ if (cur_chr == input_line_no_code)
+ cur_val = line;
+ else
+ cur_val = last_badness;
+
+ cur_val_level = int_val;
}
else
{
- cur_val = 0;
- cur_val_level = 0;
+ if (cur_chr == glue_val)
+ cur_val = zero_glue;
+ else
+ cur_val = 0;
+
+ cur_val_level = cur_chr;
+
+ if (!is_char_node(tail) && (mode != 0))
+ switch(cur_chr)
+ {
+ case int_val:
+ if (type(tail) == penalty_node)
+ cur_val = penalty(tail);
+ break;
+
+ case dimen_val:
+ if (type(tail) == kern_node)
+ cur_val = width(tail);
+ break;
+
+ case glue_val:
+ if (type(tail) == glue_node)
+ {
+ cur_val = glue_ptr(tail);
+
+ if (subtype(tail) == mu_glue)
+ cur_val_level = mu_val;
+ }
+ break;
+ }
+ else if ((mode == vmode) && (tail == head))
+ switch (cur_chr)
+ {
+ case int_val:
+ cur_val = last_penalty;
+ break;
+
+ case dimen_val:
+ cur_val = last_kern;
+ break;
+
+ case glue_val:
+ if (last_glue != empty_flag)
+ cur_val = last_glue;
+ break;
+ }
}
- }
- break;
+ break;
+
+ default:
+ {
+ print_err("You can't use `");
+ print_cmd_chr(cur_cmd, cur_chr);
+ print_string("' after ");
+ print_esc("the");
+ help1("I'm forgetting what you said and using zero instead.");
+ error();
+
+ if (level != tok_val)
+ scanned_result(0, dimen_val);
+ else
+ scanned_result(0, int_val);
+ }
+ break;
}
- while (cur_val_level > level) {
- if (cur_val_level == 2)
- cur_val = mem[cur_val + 1].cint;
- else if (cur_val_level == 3)
- {
+
+ while (cur_val_level > level)
+ {
+ if (cur_val_level == glue_val)
+ cur_val = width(cur_val);
+ else if (cur_val_level == mu_val)
mu_error();
- }
+
decr(cur_val_level);
}
+
if (negative)
if (cur_val_level >= 2)
{
cur_val = new_spec(cur_val);
+
{
- mem[cur_val + 1].cint = - (integer) mem[cur_val + 1].cint;
- mem[cur_val + 2].cint = - (integer) mem[cur_val + 2].cint;
- mem[cur_val + 3].cint = - (integer) mem[cur_val + 3].cint;
+ width(cur_val) = -width(cur_val);
+ stretch(cur_val) = -stretch(cur_val);
+ shrink(cur_val) = -shrink(cur_val);
}
}
- else cur_val = - (integer) cur_val;
- else if ((cur_val_level >= 2) && (cur_val_level <= 3))
- incr(mem[cur_val].hh.v.RH);
+ else
+ cur_val = -cur_val;
+ else if ((cur_val_level >= glue_val) && (cur_val_level <= mu_val))
+ add_glue_ref(cur_val);
}
-
-/*****************************************************************************/
-
-/* Moved here to avoid question about pragma optimize 96/Sep/12 */
/* sec 0341 */
void get_next (void)
{
char d;
lab20:
- cur_cs = 0;
- if (cur_input.state_field != token_list)
+ cur_cs = 0;
+
+ if (state != token_list)
{
lab25:
- if (cur_input.loc_field <= cur_input.limit_field)
+ if (loc <= limit)
{
- cur_chr = buffer[cur_input.loc_field];
- incr(cur_input.loc_field);
+ cur_chr = buffer[loc];
+ incr(loc);
lab21:
cur_cmd = cat_code(cur_chr);
- switch (cur_input.state_field + cur_cmd)
+
+ switch (state + cur_cmd)
{
case any_state_plus(ignore):
case skip_blanks + spacer:
case new_line + spacer:
goto lab25;
break;
+
case any_state_plus(escape):
{
- if (cur_input.loc_field > cur_input.limit_field)
+ if (loc > limit)
cur_cs = null_cs;
else
{
lab26:
- k = cur_input.loc_field;
+ k = loc;
cur_chr = buffer[k];
cat = cat_code(cur_chr);
incr(k);
+
if (cat == letter)
- cur_input.state_field = skip_blanks;
+ state = skip_blanks;
else if (cat == spacer)
- cur_input.state_field = skip_blanks;
+ state = skip_blanks;
else
- cur_input.state_field = mid_line;
+ state = mid_line;
- if ((cat == letter) && (k <= cur_input.limit_field))
+ if ((cat == letter) && (k <= limit))
{
- do {
- cur_chr = buffer[k];
- cat = cat_code(cur_chr);
- incr(k);
- } while(!((cat != letter) || (k > cur_input.limit_field)));
+ do
+ {
+ cur_chr = buffer[k];
+ cat = cat_code(cur_chr);
+ incr(k);
+ }
+ while (!((cat != letter) || (k > limit)));
+
{
if (buffer[k]== cur_chr)
if (cat == sup_mark)
- if (k < cur_input.limit_field)
+ if (k < limit)
{
c = buffer[k + 1];
+
if (c < 128)
{
d = 2;
- if ((((c >= 48) && (c <= 57)) ||
- ((c >= 97) && (c <= 102))))
- if (k + 2 <= cur_input.limit_field)
+ if ((((c >= 48) && (c <= 57)) || ((c >= 97) && (c <= 102))))
+ if (k + 2 <= limit)
{
cc = buffer[k + 2];
- if ((((cc >= 48) && (cc <= 57)) ||
- ((cc >= 97) && (cc <= 102))))
+
+ if ((((cc >= 48) && (cc <= 57)) || ((cc >= 97) && (cc <= 102))))
incr(d);
}
+
if (d > 2)
{
if (c <= 57)
cur_chr = c - 48;
else
cur_chr = c - 87;
+
if (cc <= 57)
cur_chr = 16 * cur_chr + cc - 48;
else
cur_chr = 16 * cur_chr + cc - 87;
+
buffer[k - 1] = cur_chr;
}
else if (c < 64)
buffer[k - 1] = c + 64;
else
buffer[k - 1] = c - 64;
- cur_input.limit_field = cur_input.limit_field - d;
+
+ limit = limit - d;
first = first - d;
- while (k <= cur_input.limit_field) {
+
+ while (k <= limit)
+ {
buffer[k] = buffer[k + d];
incr(k);
}
+
goto lab26;
}
}
}
+
if (cat != letter)
decr(k);
- if (k > cur_input.loc_field + 1)
+
+ if (k > loc + 1)
{
- cur_cs = id_lookup(cur_input.loc_field, k - cur_input.loc_field);
- cur_input.loc_field = k;
+ cur_cs = id_lookup(loc, k - loc);
+ loc = k;
goto lab40;
}
}
{
if (buffer[k] == cur_chr)
if (cat == sup_mark)
- if (k < cur_input.limit_field)
+ if (k < limit)
{
c = buffer[k + 1];
+
if (c < 128) /* ? */
{
d = 2;
- if ((((c >= 48) && (c <= 57)) ||
- ((c >= 97) && (c <= 102))))
- if (k + 2 <= cur_input.limit_field)
+ if ((((c >= 48) && (c <= 57)) || ((c >= 97) && (c <= 102))))
+ if (k + 2 <= limit)
{
cc = buffer[k + 2];
- if ((((cc >= 48) && (cc <= 57)) ||
- ((cc >= 97) && (cc <= 102))))
+
+ if ((((cc >= 48) && (cc <= 57)) || ((cc >= 97) && (cc <= 102))))
incr(d);
}
+
if (d > 2)
{
if (c <= 57)
cur_chr = c - 48;
else
cur_chr = c - 87;
+
if (cc <= 57) /* cc may be used without ... */
cur_chr = 16 * cur_chr + cc - 48;
else
cur_chr = 16 * cur_chr + cc - 87;
+
buffer[k - 1] = cur_chr;
}
else if (c < 64)
buffer[k - 1] = c + 64;
else
buffer[k - 1] = c - 64;
- cur_input.limit_field = cur_input.limit_field - d;
+
+ limit = limit - d;
first = first - d;
- while (k <= cur_input.limit_field) {
+
+ while (k <= limit)
+ {
buffer[k] = buffer[k + d];
incr(k);
}
}
}
}
- cur_cs = single_base + buffer[cur_input.loc_field];
- incr(cur_input.loc_field);
+ cur_cs = single_base + buffer[loc];
+ incr(loc);
}
lab40:
cur_cmd = eq_type(cur_cs);
cur_chr = equiv(cur_cs);
if (cur_cmd >= outer_call)
- {
check_outer_validity();
- }
}
break;
+
case any_state_plus(active_char):
{
cur_cs = cur_chr + active_base;
cur_cmd = eq_type(cur_cs);
cur_chr = equiv(cur_cs);
- cur_input.state_field = mid_line;
+ state = mid_line;
if (cur_cmd >= outer_call)
- {
check_outer_validity();
- }
}
break;
+
case any_state_plus(sup_mark):
{
- if (cur_chr == buffer[cur_input.loc_field])
- if (cur_input.loc_field < cur_input.limit_field)
+ if (cur_chr == buffer[loc])
+ if (loc < limit)
{
- c = buffer[cur_input.loc_field + 1];
+ c = buffer[loc + 1];
+
if (c < 128)
{
- cur_input.loc_field = cur_input.loc_field + 2;
- if ((((c >= 48) && (c <= 57)) ||
- ((c >= 97) && (c <= 102))))
- if (cur_input.loc_field <= cur_input.limit_field)
+ loc = loc + 2;
+
+ if ((((c >= 48) && (c <= 57)) || ((c >= 97) && (c <= 102))))
+ if (loc <= limit)
{
- cc = buffer[cur_input.loc_field];
- if ((((cc >= 48) && (cc <= 57)) ||
- ((cc >= 97) && (cc <= 102))))
+ cc = buffer[loc];
+
+ if ((((cc >= 48) && (cc <= 57)) || ((cc >= 97) && (cc <= 102))))
{
- incr(cur_input.loc_field);
+ incr(loc);
+
if (c <= 57)
cur_chr = c - 48;
else
cur_chr = c - 87;
+
if (cc <= 57)
cur_chr = 16 * cur_chr + cc - 48;
else
cur_chr = 16 * cur_chr + cc - 87;
+
goto lab21;
}
}
+
if (c < 64)
cur_chr = c + 64;
else
cur_chr = c - 64;
+
goto lab21;
}
}
- cur_input.state_field = mid_line;
+
+ state = mid_line;
}
break;
+
case any_state_plus(invalid_char):
{
print_err("Text line contains an invalid character");
goto lab20;
}
break;
+
case mid_line + spacer:
{
- cur_input.state_field = skip_blanks;
+ state = skip_blanks;
cur_chr = ' ';
}
break;
+
case mid_line + car_ret:
{
- cur_input.loc_field = cur_input.limit_field + 1;
+ loc = limit + 1;
cur_cmd = spacer;
cur_chr = ' ';
}
break;
+
case skip_blanks + car_ret:
case any_state_plus(comment):
{
- cur_input.loc_field = cur_input.limit_field + 1;
+ loc = limit + 1;
goto lab25;
}
break;
+
case new_line + car_ret:
{
- cur_input.loc_field = cur_input.limit_field + 1;
+ loc = limit + 1;
cur_cs = par_loc;
cur_cmd = eq_type(cur_cs);
cur_chr = equiv(cur_cs);
if (cur_cmd >= outer_call)
- {
check_outer_validity();
- }
}
break;
+
case mid_line + left_brace:
incr(align_state);
break;
+
case skip_blanks + left_brace:
case new_line + left_brace:
{
- cur_input.state_field = mid_line;
+ state = mid_line;
incr(align_state);
}
break;
+
case mid_line + right_brace:
decr(align_state);
break;
+
case skip_blanks + right_brace:
case new_line + right_brace:
{
- cur_input.state_field = 1;
+ state = 1;
decr(align_state);
}
break;
+
case add_delims_to(skip_blanks):
case add_delims_to(new_line):
- cur_input.state_field = 1;
+ state = 1;
break;
+
default:
break;
}
}
else
{
- cur_input.state_field = new_line;
+ state = new_line;
if (cur_input.name_field > 17)
{
incr(line);
- first = cur_input.start_field;
+ first = start;
+
if (!force_eof)
{
- if (input_ln(input_file[cur_input.index_field], true))
- {
+ if (input_ln(input_file[index], true))
firm_up_the_line();
- }
else
force_eof = true;
}
check_outer_validity();
goto lab20;
}
+
if ((end_line_char < 0) || (end_line_char > 255))
- decr(cur_input.limit_field);
+ decr(limit);
else
- buffer[cur_input.limit_field] = end_line_char;
- first = cur_input.limit_field + 1;
- cur_input.loc_field = cur_input.start_field;
+ buffer[limit] = end_line_char;
+
+ first = limit + 1;
+ loc = start;
}
else
{
cur_chr = 0;
return;
}
+
if (input_ptr > 0)
{
end_file_reading();
goto lab20;
}
+
if (selector < log_only)
open_log_file();
+
if (interaction > nonstop_mode)
{
if ((end_line_char < 0) || (end_line_char > 255))
- incr(cur_input.limit_field);
- if (cur_input.limit_field == cur_input.start_field)
+ incr(limit);
+
+ if (limit == start)
print_nl("(Please type a command or say `\\end')");
+
print_ln();
- first = cur_input.start_field;
- {
- ;
- print_string("*");
- term_input("*", 0);
- }
- cur_input.limit_field = last;
+ first = start;
+ prompt_input("*");
+ limit = last;
+
if ((end_line_char < 0) || (end_line_char > 255))
- decr(cur_input.limit_field);
+ decr(limit);
else
- buffer[cur_input.limit_field]= end_line_char;
- first = cur_input.limit_field + 1;
- cur_input.loc_field = cur_input.start_field;
+ buffer[limit]= end_line_char;
+
+ first = limit + 1;
+ loc = start;
}
else
{
return; // abort_flag set
}
}
- {
- if (interrupt != 0)
- {
- pause_for_instructions();
- }
- }
+
+ check_interrupt();
goto lab25;
}
}
- else if (cur_input.loc_field != 0)
+ else if (loc != 0)
{
- t = info(cur_input.loc_field);
- cur_input.loc_field = link(cur_input.loc_field);
- if (t >= 4095)
+ t = info(loc);
+ loc = link(loc);
+
+ if (t >= cs_token_flag)
{
- cur_cs = t - 4095;
+ cur_cs = t - cs_token_flag;
cur_cmd = eq_type(cur_cs);
cur_chr = equiv(cur_cs);
+
if (cur_cmd >= outer_call)
if (cur_cmd == dont_expand)
{
- cur_cs = info(cur_input.loc_field) - 4095;
- cur_input.loc_field = 0;
+ cur_cs = info(loc) - cs_token_flag;
+ loc = 0;
cur_cmd = eq_type(cur_cs);
cur_chr = equiv(cur_cs);
if (cur_cmd > max_command)
{
cur_cmd = relax;
- cur_chr = 257;
+ cur_chr = no_expand_flag;
}
}
else
{
cur_cmd = t / 256;
cur_chr = t % 256;
+
switch (cur_cmd)
{
case left_brace:
incr(align_state);
break;
+
case right_brace:
decr(align_state);
break;
+
case out_param:
{
- begin_token_list(param_stack[cur_input.limit_field + cur_chr - 1], parameter);
+ begin_token_list(param_stack[limit + cur_chr - 1], parameter);
goto lab20;
}
break;
+
default:
break;
}
end_token_list();
goto lab20;
}
+
if (cur_cmd <= car_ret)
if (cur_cmd >= tab_mark)
if (align_state == 0)
fatal_error("(interwoven alignment preambles are not allowed)");
return; // abort_flag set
}
+
cur_cmd = extra_info(cur_align);
extra_info(cur_align) = cur_chr;
+
if (cur_cmd == omit)
begin_token_list(omit_template, v_template);
else
begin_token_list(v_part(cur_align), v_template);
+
align_state = 1000000L;
goto lab20;
}
-}
-#pragma optimize ("", on) /* 96/Sep/12 */
+}
\ No newline at end of file
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