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Diffstat (limited to 'Build/source/texk/web2c/alephdir/com16bit.ch')
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diff --git a/Build/source/texk/web2c/alephdir/com16bit.ch b/Build/source/texk/web2c/alephdir/com16bit.ch deleted file mode 100644 index 78a7047adb2..00000000000 --- a/Build/source/texk/web2c/alephdir/com16bit.ch +++ /dev/null @@ -1,2994 +0,0 @@ -% com16bit.ch: Aleph version of file tex.ch -% -% tex.ch for C compilation with web2c, derived from various other change files. -% By Tim Morgan, UC Irvine ICS Department, and many others. -% -% (05/28/86) ETM Started with TeX 2.0 -% (06/03/87) ETM Brought up to TeX 2.2 -% (09/26/87) ETM Brought up to TeX 2.3 -% (10/01/87) ETM Brought up to TeX 2.5 -% (12/21/87) ETM Brought up to TeX 2.7 -% (01/14/88) ETM Brought up to TeX 2.9 -% (02/20/88) PAM Revised format and module numbers -% (03/01/88) ETM Eliminated some unused variables and unnecesary tests -% (05/09/88) ETM Added yet another casting bug fix -% (06/21/88) ETM Brought up to TeX version 2.93 -% (12/11/88) ETM Brought up to TeX version 2.94 -% (01/12/89) PAM Brought up to TeX version 2.95 -% (02/14/89) ETM Brought up to TeX version 2.96 -% (03/10/89) ETM Brought up to TeX version 2.98 -% (07/06/89) ETM Brought up to TeX version 2.991 -% (11/30/89) KB To version 2.992 (8-bit). -% (01/10/90) SR To version 2.993. -% (03/27/90) KY To version 3.0. -% (more recent changes in ChangeLog) -% -% The TeX program is copyright (C) 1982 by D. E. Knuth. -% TeX is a trademark of the American Mathematical Society. -% -% The module numbers in this change file refer to TEX.WEB 3.141592 as -% of March, 1995 (published as Donald E. Knuth, TeX: The Program, -% Volume B of Computers & Typesetting). - -@x [0.0] l.83 - WEAVE: print changes only. - \def\?##1]{\hbox to 1in{\hfil##1.\ }} - } -@y 83 - \def\?##1]{\hbox{Changes to \hbox to 1em{\hfil##1}.\ }} - } -\let\maybe=\iffalse -@z - -@x -@d banner=='This is Aleph, Version 3.141592653-',Omega_version_banner,'-',eTeX_version_banner,'-',Aleph_version_banner {printed when \TeX\ starts} -@y -@d banner=='This is Aleph, Version 3.141592653-',Omega_version_banner,'-',eTeX_version_banner,'-',Aleph_version_banner {printed when \TeX\ starts} -@d banner_k==banner {Web2C announces itself} -@z - -@x [1.4] l.233 - program header -Actually the heading shown here is not quite normal: The |program| line -does not mention any |output| file, because \ph\ would ask the \TeX\ user -to specify a file name if |output| were specified here. -@:PASCAL H}{\ph@> -@^system dependencies@> -@y -@z - -@x [1.4] l.243 - labels in outer block not needed -program OMEGA; {all file names are defined dynamically} -label @<Labels in the outer block@>@/ -@y -program OMEGA; {all file names are defined dynamically} -@z - -@x [1.6] l.267 - labels in outer block not needed -@ Three labels must be declared in the main program, so we give them -symbolic names. - -@d start_of_TEX=1 {go here when \TeX's variables are initialized} -@d end_of_TEX=9998 {go here to close files and terminate gracefully} -@d final_end=9999 {this label marks the ending of the program} - -@<Labels in the out...@>= -start_of_TEX@t\hskip-2pt@>, end_of_TEX@t\hskip-2pt@>,@,final_end; - {key control points} -@y -@ For Web2c, labels are not declared in the main program, but -we still have to declare the symbolic names. - -@d start_of_TEX=1 {go here when \TeX's variables are initialized} -@d final_end=9999 {this label marks the ending of the program} -@z - -% Here we change these WEB symbols, which are used much as #ifdef's -% are in C, into something which will get translated into actual #ifdef's. -@x [1.7] l.292 - debug..gubed, stat..tats -@d debug==@{ {change this to `$\\{debug}\equiv\null$' when debugging} -@d gubed==@t@>@} {change this to `$\\{gubed}\equiv\null$' when debugging} -@y -@d debug==ifdef('TEXMF_DEBUG') -@d gubed==endif('TEXMF_DEBUG') -@z -@x [1.7] l.297 - debug..gubed, stat..tats -@d stat==@{ {change this to `$\\{stat}\equiv\null$' when gathering - usage statistics} -@d tats==@t@>@} {change this to `$\\{tats}\equiv\null$' when gathering - usage statistics} -@y -@d stat==ifdef('STAT') -@d tats==endif('STAT') -@z - -@x [1.8] l.312 - Same, for `init...tini'. -@d init== {change this to `$\\{init}\equiv\.{@@\{}$' in the production version} -@d tini== {change this to `$\\{tini}\equiv\.{@@\}}$' in the production version} -@y 312 -@d init==ifdef('INITEX') -@d tini==endif('INITEX') -@z - -@x [1.8] l.319 - init...tini is dynamic -@!init @<Initialize table entries (done by \.{INITEX} only)@>@;@+tini -@y 318 -@!init -if ini_version then - begin @<Initialize table entries (done by \.{INITEX} only)@>@; - end; -@+tini -@z - -@x [1.11] l.375 - Compile-time constants: most removed for dynamic allocation. -@<Constants...@>= -@!mem_max=30000; {greatest index in \TeX's internal |mem| array; - must be strictly less than |max_halfword|; - must be equal to |mem_top| in \.{INITEX}, otherwise |>=mem_top|} -@!mem_min=0; {smallest index in \TeX's internal |mem| array; - must be |min_halfword| or more; - must be equal to |mem_bot| in \.{INITEX}, otherwise |<=mem_bot|} -@!buf_size=500; {maximum number of characters simultaneously present in - current lines of open files and in control sequences between - \.{\\csname} and \.{\\endcsname}; must not exceed |max_halfword|} -@!error_line=72; {width of context lines on terminal error messages} -@!half_error_line=42; {width of first lines of contexts in terminal - error messages; should be between 30 and |error_line-15|} -@!max_print_line=79; {width of longest text lines output; should be at least 60} -@!stack_size=200; {maximum number of simultaneous input sources} -@!max_in_open=6; {maximum number of input files and error insertions that - can be going on simultaneously} -@y -@d file_name_size == maxint -@d ssup_error_line = 255 -@d ssup_max_strings == 2097151 -{Larger values may be used, but then the arrays consume much more memory.} -@d ssup_trie_opcode == 65535 -@d ssup_trie_size == @"3FFFFF - -@d ssup_hyph_size == 65535 {Changing this requires changing (un)dumping!} -@d iinf_hyphen_size == 610 {Must be not less than |hyph_prime|!} - -@<Constants...@>= -@!mem_bot=0; {smallest index in the |mem| array dumped by \.{INITEX}; - must not be less than |mem_min|} - {Use |mem_bot=0| for compilers which cannot decrement pointers.} -@z - -@x -@!font_max=65535; {maximum internal font number; must be at most |font_biggest|} -@!param_size=60; {maximum number of simultaneous macro parameters} -@!nest_size=40; {maximum number of semantic levels simultaneously active} -@!max_strings=3000; {maximum number of strings; must not exceed |max_halfword|} -@!string_vacancies=8000; {the minimum number of characters that should be - available for the user's control sequences and font names, - after \TeX's own error messages are stored} -@!pool_size=32000; {maximum number of characters in strings, including all - error messages and help texts, and the names of all fonts and - control sequences; must exceed |string_vacancies| by the total - length of \TeX's own strings, which is currently about 23000} -@!save_size=600; {space for saving values outside of current group; must be - at most |max_halfword|} -@!trie_size=8000; {space for hyphenation patterns; should be larger for - \.{INITEX} than it is in production versions of \TeX} -@!trie_op_size=500; {space for ``opcodes'' in the hyphenation patterns} -@!dvi_buf_size=800; {size of the output buffer; must be a multiple of 8} -@!file_name_size=40; {file names shouldn't be longer than this} -@!pool_name='TeXformats:ALEPH.POOL '; - {string of length |file_name_size|; tells where the string pool appears} -@y -@!font_max=65535; {maximum internal font number; must be at most |font_biggest|} -@!hash_offset=514; {smallest index in hash array, i.e., |hash_base| } - {Use |hash_offset=0| for compilers which cannot decrement pointers.} -@!trie_op_size=15011; {space for ``opcodes'' in the hyphenation patterns; - best if relatively prime to 313, 361, and 1009.} -@!neg_trie_op_size=-35111; {for lower |trie_op_hash| array bound; - must be equal to |-trie_op_size|.} -@!min_trie_op=0; {first possible trie op code for any language} -@!max_trie_op=ssup_trie_opcode; {largest possible trie opcode for any language} -@!pool_name=TEXMF_POOL_NAME; {this is configurable, for the sake of ML-\TeX} - {string of length |file_name_size|; tells where the string pool appears} -@!engine_name=TEXMF_ENGINE_NAME; {the name of this engine} -@# -@!inf_main_memory = 2000000; -@!sup_main_memory = 256000000; - -@!inf_trie_size = 80000; -@!sup_trie_size = ssup_trie_size; - -@!inf_max_strings = 100000; -@!sup_max_strings = ssup_max_strings; - -@!inf_strings_free = 100; -@!sup_strings_free = sup_max_strings; - -@!inf_buf_size = 500; -@!sup_buf_size = 30000000; - -@!inf_nest_size = 40; -@!sup_nest_size = 4000; - -@!inf_max_in_open = 6; -@!sup_max_in_open = 127; - -@!inf_param_size = 60; -@!sup_param_size = 6000; - -@!inf_save_size = 600; -@!sup_save_size = 80000; - -@!inf_stack_size = 200; -@!sup_stack_size = 30000; - -@!inf_dvi_buf_size = 800; -@!sup_dvi_buf_size = 65536; - -@!inf_pool_size = 32000; -@!sup_pool_size = 40000000; -@!inf_pool_free = 1000; -@!sup_pool_free = sup_pool_size; -@!inf_string_vacancies = 8000; -@!sup_string_vacancies = sup_pool_size - 23000; - -@!sup_hyph_size = ssup_hyph_size; -@!inf_hyph_size = iinf_hyphen_size; {Must be not less than |hyph_prime|!} -@z - -@x [1.12] l.427 - Constants that are WEB numeric macros. -@d mem_bot=0 {smallest index in the |mem| array dumped by \.{INITEX}; - must not be less than |mem_min|} -@d mem_top==30000 {largest index in the |mem| array dumped by \.{INITEX}; - must be substantially larger than |mem_bot| - and not greater than |mem_max|} -@d font_base=0 {smallest internal font number; must not be less - than |min_quarterword|} -@d hash_size=65536 {maximum number of control sequences; it should be at most - about |(mem_max-mem_min)/10|} -@d hash_prime=55711 {a prime number equal to about 85\pct! of |hash_size|} -@d hyph_size=307 {another prime; the number of \.{\\hyphenation} exceptions} -@y -@d font_base=0 {smallest internal font number; must not be less - than |min_quarterword|} -@d hash_size=65536 {maximum number of control sequences; it should be at most - about |(mem_max-mem_min)/10|} -@d hash_prime=55711 {a prime number equal to about 85\pct! of |hash_size|} -@d hyph_prime=607 {another prime for hashing \.{\\hyphenation} exceptions; - if you change this, you should also change |iinf_hyphen_size|.} -@z - -@x [1.16] l.498 - Use C macros for `incr' and `decr'. -@d incr(#) == #:=#+1 {increase a variable by unity} -@d decr(#) == #:=#-1 {decrease a variable by unity} -@y -@z - -% The text_char type is used as an array index into xord. The -% default type `char' produces signed integers, which are bad array -% indices in C. -@x [2.19] l.565 - data type text_char is 8-bit ASCII_code -@d text_char == char {the data type of characters in text files} -@y -@d text_char == ASCII_code {the data type of characters in text files} -@z - -% [3.26] name_of_file is no longer an array. And change the destination -% type to text_char, which fixes: -% -% Date: 19 Sep 1994 10:38:24 +0200 -% From: thorinn@diku.dk (Lars Mathiesen) -% When echoed to the screen and in the log, character codes -% above '177 in file names are shown wrongly (typically as ^@). -% -@x [3.26] l.789 - name_of_file is no longer an array -@!name_of_file:packed array[1..file_name_size] of char;@;@/ - {on some systems this may be a \&{record} variable} -@y -@!name_of_file:^char; -@z - -@x [3.27] l.794 - Do file opening in C. -@ The \ph\ compiler with which the present version of \TeX\ was prepared has -extended the rules of \PASCAL\ in a very convenient way. To open file~|f|, -we can write -$$\vbox{\halign{#\hfil\qquad&#\hfil\cr -|reset(f,@t\\{name}@>,'/O')|&for input;\cr -|rewrite(f,@t\\{name}@>,'/O')|&for output.\cr}}$$ -The `\\{name}' parameter, which is of type `{\bf packed array -$[\langle\\{any}\rangle]$ of \\{char}}', stands for the name of -the external file that is being opened for input or output. -Blank spaces that might appear in \\{name} are ignored. - -The `\.{/O}' parameter tells the operating system not to issue its own -error messages if something goes wrong. If a file of the specified name -cannot be found, or if such a file cannot be opened for some other reason -(e.g., someone may already be trying to write the same file), we will have -|@!erstat(f)<>0| after an unsuccessful |reset| or |rewrite|. This allows -\TeX\ to undertake appropriate corrective action. -@:PASCAL H}{\ph@> -@^system dependencies@> - -\TeX's file-opening procedures return |false| if no file identified by -|name_of_file| could be opened. - -@d reset_OK(#)==erstat(#)=0 -@d rewrite_OK(#)==erstat(#)=0 - -@p function a_open_in(var f:alpha_file):boolean; - {open a text file for input} -begin reset(f,name_of_file,'/O'); a_open_in:=reset_OK(f); -end; -@# -function a_open_out(var f:alpha_file):boolean; - {open a text file for output} -begin rewrite(f,name_of_file,'/O'); a_open_out:=rewrite_OK(f); -end; -@# -function b_open_in(var f:byte_file):boolean; - {open a binary file for input} -begin reset(f,name_of_file,'/O'); b_open_in:=reset_OK(f); -end; -@# -function b_open_out(var f:byte_file):boolean; - {open a binary file for output} -begin rewrite(f,name_of_file,'/O'); b_open_out:=rewrite_OK(f); -end; -@# -function w_open_in(var f:word_file):boolean; - {open a word file for input} -begin reset(f,name_of_file,'/O'); w_open_in:=reset_OK(f); -end; -@# -function w_open_out(var f:word_file):boolean; - {open a word file for output} -begin rewrite(f,name_of_file,'/O'); w_open_out:=rewrite_OK(f); -end; -@y -@ All of the file opening functions are defined in C. -@z - -@x [3.28] l.850 - Do file closing in C. -@ Files can be closed with the \ph\ routine `|close(f)|', which -@:PASCAL H}{\ph@> -@^system dependencies@> -should be used when all input or output with respect to |f| has been completed. -This makes |f| available to be opened again, if desired; and if |f| was used for -output, the |close| operation makes the corresponding external file appear -on the user's area, ready to be read. - -These procedures should not generate error messages if a file is -being closed before it has been successfully opened. - -@p procedure a_close(var f:alpha_file); {close a text file} -begin close(f); -end; -@# -procedure b_close(var f:byte_file); {close a binary file} -begin close(f); -end; -@# -procedure w_close(var f:word_file); {close a word file} -begin close(f); -end; -@y -@ And all the file closing routines as well. -@z - -@x [3.30] l.888 - Array size of input buffer is determined at runtime. -@!buffer:array[0..buf_size] of ASCII_code; {lines of characters being read} -@y -@!buffer:^ASCII_code; {lines of characters being read} -@z - -@x [3.31] l.933 - Do `input_ln' in C. -@p function input_ln(var f:alpha_file;@!bypass_eoln:boolean):boolean; - {inputs the next line or returns |false|} -var last_nonblank:0..buf_size; {|last| with trailing blanks removed} -begin if bypass_eoln then if not eof(f) then get(f); - {input the first character of the line into |f^|} -last:=first; {cf.\ Matthew 19\thinspace:\thinspace30} -if eof(f) then input_ln:=false -else begin last_nonblank:=first; - while not eoln(f) do - begin if last>=max_buf_stack then - begin max_buf_stack:=last+1; - if max_buf_stack=buf_size then - @<Report overflow of the input buffer, and abort@>; - end; - buffer[last]:=f^; get(f); incr(last); - if buffer[last-1]<>" " then last_nonblank:=last; - end; - last:=last_nonblank; input_ln:=true; - end; -end; -@y -We define |input_ln| in C, for efficiency. -@z - -% [3.32] `term_in' and `term_out' are standard input and output. -% Declare the variables that used to be constants. -@x [3.32] l.961 - `term_in' and `term_out' are standard input and output. -@<Glob...@>= -@!term_in:alpha_file; {the terminal as an input file} -@!term_out:alpha_file; {the terminal as an output file} -@y -@d term_in==stdin {the terminal as an input file} -@d term_out==stdout {the terminal as an output file} - -@<Glob...@>= -@!init -@!ini_version:boolean; {are we \.{INITEX}?} -@!dump_option:boolean; {was the dump name option used?} -@!dump_line:boolean; {was a \.{\%\AM format} line seen?} -tini@/ -@# -@!dump_name:const_cstring; {format name for terminal display} -@# -@!bound_default:integer; {temporary for setup} -@!bound_name:const_cstring; {temporary for setup} -@# -@!main_memory:integer; {total memory words allocated in initex} -@!extra_mem_bot:integer; {|mem_min:=mem_bot-extra_mem_bot| except in \.{INITEX}} -@!mem_min:integer; {smallest index in \TeX's internal |mem| array; - must be |min_halfword| or more; - must be equal to |mem_bot| in \.{INITEX}, otherwise |<=mem_bot|} -@!mem_top:integer; {largest index in the |mem| array dumped by \.{INITEX}; - must be substantially larger than |mem_bot|, - equal to |mem_max| in \.{INITEX}, else not greater than |mem_max|} -@!extra_mem_top:integer; {|mem_max:=mem_top+extra_mem_top| except in \.{INITEX}} -@!mem_max:integer; {greatest index in \TeX's internal |mem| array; - must be strictly less than |max_halfword|; - must be equal to |mem_top| in \.{INITEX}, otherwise |>=mem_top|} -@!error_line:integer; {width of context lines on terminal error messages} -@!half_error_line:integer; {width of first lines of contexts in terminal - error messages; should be between 30 and |error_line-15|} -@!max_print_line:integer; - {width of longest text lines output; should be at least 60} -@!max_strings:integer; {maximum number of strings; must not exceed |max_halfword|} -@!strings_free:integer; {strings available after format loaded} -@!string_vacancies:integer; {the minimum number of characters that should be - available for the user's control sequences and font names, - after \TeX's own error messages are stored} -@!pool_size:integer; {maximum number of characters in strings, including all - error messages and help texts, and the names of all fonts and - control sequences; must exceed |string_vacancies| by the total - length of \TeX's own strings, which is currently about 23000} -@!pool_free:integer;{pool space free after format loaded} -@!hyph_size:integer; {maximun number of hyphen exceptions} -@!trie_size:integer; {space for hyphenation patterns; should be larger for - \.{INITEX} than it is in production versions of \TeX. 50000 is - needed for English, German, and Portuguese.} -@!buf_size:integer; {maximum number of characters simultaneously present in - current lines of open files and in control sequences between - \.{\\csname} and \.{\\endcsname}; must not exceed |max_halfword|} -@!stack_size:integer; {maximum number of simultaneous input sources} -@!max_in_open:integer; {maximum number of input files and error insertions that - can be going on simultaneously} -@!param_size:integer; {maximum number of simultaneous macro parameters} -@!nest_size:integer; {maximum number of semantic levels simultaneously active} -@!save_size:integer; {space for saving values outside of current group; must be - at most |max_halfword|} -@!dvi_buf_size:integer; {size of the output buffer; must be a multiple of 8} -@!quoted_filename:boolean; {current filename is quoted} -@z - -@x [3.33] l.964 - We don't need to open terminal files. -@ Here is how to open the terminal files -in \ph. The `\.{/I}' switch suppresses the first |get|. -@:PASCAL H}{\ph@> -@^system dependencies@> - -@d t_open_in==reset(term_in,'TTY:','/O/I') {open the terminal for text input} -@d t_open_out==rewrite(term_out,'TTY:','/O') {open the terminal for text output} -@y -@ Here is how to open the terminal files. |t_open_out| does nothing. -|t_open_in|, on the other hand, does the work of ``rescanning,'' or getting -any command line arguments the user has provided. It's defined in C. - -@d t_open_out == {output already open for text output} -@z - -@x [3.34] l.982 - Flushing output to terminal files. -these operations can be specified in \ph: -@:PASCAL H}{\ph@> -@^system dependencies@> - -@d update_terminal == break(term_out) {empty the terminal output buffer} -@d clear_terminal == break_in(term_in,true) {clear the terminal input buffer} -@y -these operations can be specified with {\mc UNIX}. |update_terminal| -does an |fflush|. |clear_terminal| is redefined -to do nothing, since the user should control the terminal. -@^system dependencies@> - -@d update_terminal == fflush (term_out) -@d clear_terminal == do_nothing -@z - -@x [3.35] l.1017 - Do `input_ln' in C => section not needed. -@<Report overflow of the input buffer, and abort@>= -if format_ident=0 then - begin write_ln(term_out,'Buffer size exceeded!'); goto final_end; -@.Buffer size exceeded@> - end -else begin cur_input.loc_field:=first; cur_input.limit_field:=last-1; - overflow("buffer size",buf_size); -@:TeX capacity exceeded buffer size}{\quad buffer size@> - end -@y -Routine is implemented in C; part of module is, however, needed for e-TeX. - -@<Report overflow of the input buffer, and abort@>= - begin cur_input.loc_field:=first; cur_input.limit_field:=last-1; - overflow("buffer size",buf_size); -@:TeX capacity exceeded buffer size}{\quad buffer size@> - end -@z - -@x [3.37] l.1055 - |init_terminal|, reading the command line. -@ The following program does the required initialization -without retrieving a possible command line. -It should be clear how to modify this routine to deal with command lines, -if the system permits them. -@^system dependencies@> - -@p function init_terminal:boolean; {gets the terminal input started} -label exit; -begin t_open_in; -@y -@ The following program does the required initialization. -Iff anything has been specified on the command line, then |t_open_in| -will return with |last > first|. -@^system dependencies@> - -@p function init_terminal:boolean; {gets the terminal input started} -label exit; -begin t_open_in; -if last > first then - begin loc := first; - while (loc < last) and (buffer[loc]=' ') do incr(loc); - if loc < last then - begin init_terminal := true; goto exit; - end; - end; -@z - -@x [3.37] l.1068 - |init_terminal|, output missing newline. - write(term_out,'! End of file on the terminal... why?'); -@y - write_ln(term_out,'! End of file on the terminal... why?'); -@z - -@x [4.38] l.1126 - Array size for string pool is determined at runtime. -@!pool_pointer = 0..pool_size; {for variables that point into |str_pool|} -@!str_number = 0..max_strings; {for variables that point into |str_start|} -@y -@!pool_pointer = integer; {for variables that point into |str_pool|} -@!str_number = 0..ssup_max_strings; {for variables that point into |str_start|} -@z - -@x [4.39] l.1131 - Dynamically size pool arrays. -@!str_pool:packed array[pool_pointer] of packed_ASCII_code; {the characters} -@!str_start_ar : array[str_number] of pool_pointer; {the starting pointers} -@y -@!str_pool: ^packed_ASCII_code; {the characters} -@!str_start_ar : ^pool_pointer; {the starting pointers} -@z - -@x [4.47] l.1237 - string recycling -@p @!init function get_strings_started:boolean; {initializes the string pool, -@y -@p @t\4@>@<Declare additional routines for string recycling@>@/ - -@!init function get_strings_started:boolean; {initializes the string pool, -@z - -@x - unused variables. -var k,@!l:0..biggest_char; {small indices or counters} -@!m,@!n:text_char; {characters input from |pool_file|} -@!g:str_number; {garbage} -@!a:integer; {accumulator for check sum} -@!c:boolean; {check sum has been checked} -@y -var g:str_number; {garbage} -@z - -@x -@ @d bad_pool(#)==begin wake_up_terminal; write_ln(term_out,#); - a_close(pool_file); get_strings_started:=false; return; - end -@<Read the other strings...@>= -name_of_file:=pool_name; {we needn't set |name_length|} -if a_open_in(pool_file) then - begin c:=false; - repeat @<Read one string, but return |false| if the - string memory space is getting too tight for comfort@>; - until c; - a_close(pool_file); get_strings_started:=true; - end -else bad_pool('! I can''t read ALEPH.POOL.') -@.I can't read ALEPH.POOL@> - -@ @<Read one string...@>= -begin if eof(pool_file) then bad_pool('! ALEPH.POOL has no check sum.'); -@.ALEPH.POOL has no check sum@> -read(pool_file,m,n); {read two digits of string length} -if m='*' then @<Check the pool check sum@> -else begin if (m<"0")or(m>"9")or@| - (n<"0")or(n>"9") then - bad_pool('! ALEPH.POOL line doesn''t begin with two digits.'); -@.ALEPH.POOL line doesn't...@> - l:=m*10+n-"0"*11; {compute the length} - if pool_ptr+l+string_vacancies>pool_size then - bad_pool('! You have to increase POOLSIZE.'); -@.You have to increase POOLSIZE@> - for k:=1 to l do - begin if eoln(pool_file) then m:=' '@+else read(pool_file,m); - append_char(m); - end; - read_ln(pool_file); g:=make_string; - end; -end - -@ The \.{WEB} operation \.{@@\$} denotes the value that should be at the -end of this \.{OMEGA.POOL} file; any other value means that the wrong pool -file has been loaded. -@^check sum@> - -@<Check the pool check sum@>= -begin a:=0; k:=1; -loop@+ begin if (n<"0")or(n>"9") then - bad_pool('! ALEPH.POOL check sum doesn''t have nine digits.'); -@.ALEPH.POOL check sum...@> - a:=10*a+n-"0"; - if k=9 then goto done; - incr(k); read(pool_file,n); - end; -done: if a<>@$ then bad_pool('! ALEPH.POOL doesn''t match; OTANGLE me again.'); -@.ALEPH.POOL doesn't match@> -c:=true; -end -@y -@ @<Read the other strings...@>= - g := loadpoolstrings((pool_size-string_vacancies)); - if g=0 then begin - wake_up_terminal; write_ln(term_out,'! You have to increase POOLSIZE.'); - get_strings_started:=false; - return; - end; - get_strings_started:=true; - -@ Empty module - -@ Empty module -@z - -@x [5.54] l.1422 - error_line -@!trick_buf:array[0..error_line] of ASCII_code; {circular buffer for -@y -@!trick_buf:array[0..ssup_error_line] of ASCII_code; {circular buffer for -@z - -@x [5.61] l.1556 - Print rest of banner. -wterm(eTeX_banner); -if format_ident=0 then wterm_ln(' (no format preloaded)') -else begin slow_print(format_ident); print_ln; - end; -@y -wterm(eTeX_banner); -wterm(version_string); -if format_ident=0 then wterm_ln(' (preloaded format=',dump_name,')') -else begin slow_print(format_ident); print_ln; - end; -@z - -@x [6.73] l.1732 - Add unspecified_mode. -@d error_stop_mode=3 {stops at every opportunity to interact} -@y -@d error_stop_mode=3 {stops at every opportunity to interact} -@d unspecified_mode=4 {extra value for command-line switch} -@z - -@x [6.73] l.1738 - Add interaction_option. -@!interaction:batch_mode..error_stop_mode; {current level of interaction} -@y -@!interaction:batch_mode..error_stop_mode; {current level of interaction} -@!interaction_option:batch_mode..unspecified_mode; {set from command line} -@z - -@x [6.74] l.1740 - Allow override by command line switch. -@ @<Set init...@>=interaction:=error_stop_mode; -@y -@ @<Set init...@>=if interaction_option=unspecified_mode then - interaction:=error_stop_mode -else - interaction:=interaction_option; -@z - -% [6.81] Eliminate nonlocal goto, since C doesn't have them. -% Plus, it's nicer just to do an exit with the appropriate status code -% under Unix. We call it `uexit' because there's a WEB symbol called -% `exit' already. We use a C macro to change `uexit' back to `exit'. -@x [6.81] l.1852 - Eliminate nonlocal goto, since C doesn't have them. -@<Error hand...@>= -procedure jump_out; -begin goto end_of_TEX; -end; -@y -@d do_final_end==begin - update_terminal; - ready_already:=0; - if (history <> spotless) and (history <> warning_issued) then - uexit(1) - else - uexit(0); - end - -@<Error hand...@>= -procedure jump_out; -begin -close_files_and_terminate; -do_final_end; -end; -@z - -% Original reports: -% https://tex.stackexchange.com/questions/551313/ -% https://tug.org/pipermail/tex-live/2020-June/045876.html -% -% This will probably be fixed by DEK in the 2021 tuneup in a different -% way (so we'll have to remove or alter this change), but the interaction -% sequence in the reports above causes a segmentation fault in web2c - -% writing to the closed \write15 stream because we wrongly decrement -% selector from 16 to 15 in term_input, due to the lack of this check in -% a recursive error() call. -% -%@x [6.83] l.1893 - avoid wrong interaction -%applied in 3.141592653 -%loop@+begin continue: clear_for_error_prompt; prompt_input("? "); -%@y -%loop@+begin continue: -%if interaction<>error_stop_mode then return; -%clear_for_error_prompt; prompt_input("? "); -%@z - -@x [6.84] l.1904 - Implement the switch-to-editor option. -line ready to be edited. But such an extension requires some system -wizardry, so the present implementation simply types out the name of the -file that should be -edited and the relevant line number. -@^system dependencies@> - -There is a secret `\.D' option available when the debugging routines haven't -been commented~out. -@^debugging@> -@y -line ready to be edited. -We do this by calling the external procedure |call_edit| with a pointer to -the filename, its length, and the line number. -However, here we just set up the variables that will be used as arguments, -since we don't want to do the switch-to-editor until after TeX has closed -its files. -@^system dependencies@> - -There is a secret `\.D' option available when the debugging routines haven't -been commented~out. -@^debugging@> -@d edit_file==input_stack[base_ptr] -@z - -@x [6.84] l.1903 - Implement the switch-to-editor option. -"E": if base_ptr>0 then if input_stack[base_ptr].name_field>=256 then - begin print_nl("You want to edit file "); -@.You want to edit file x@> - slow_print(input_stack[base_ptr].name_field); - print(" at line "); print_int(line); - interaction:=scroll_mode; jump_out; -@y -"E": if base_ptr>0 then if input_stack[base_ptr].name_field>=256 then - begin edit_name_start:=str_start(edit_file.name_field); - edit_name_length:=str_start(edit_file.name_field+1) - - str_start(edit_file.name_field); - edit_line:=line; - jump_out; -@z - -% [7.104] `remainder' is a library routine on some systems, so change -% its name to avoid conflicts. -@x [7.104] l.2227 - avoid name conflicts with lib routine remainder() -|remainder|, holds the remainder after a division. - -@<Glob...@>= -@y -|remainder|, holds the remainder after a division. - -@d remainder==tex_remainder - -@<Glob...@>= -@z - -@x [7.109] l.2352 - Define glue_ratio in C. -@!glue_ratio=real; {one-word representation of a glue expansion factor} -@y -@z - -@x [8.112] l.2450 - Efficiency. -macros are simplified in the obvious way when |min_quarterword=0|. -@^inner loop@>@^system dependencies@> - -@d qi(#)==#+min_quarterword - {to put an |eight_bits| item into a quarterword} -@d qo(#)==#-min_quarterword - {to take an |eight_bits| item out of a quarterword} -@d hi(#)==#+min_halfword - {to put a sixteen-bit item into a halfword} -@d ho(#)==#-min_halfword - {to take a sixteen-bit item from a halfword} -@y -macros are simplified in the obvious way when |min_quarterword=0|. -So they have been simplified here in the obvious way. -@^inner loop@>@^system dependencies@> - -The \.{WEB} source for \TeX\ defines |hi(#)==#+min_halfword| which can be -simplified when |min_halfword=0|. The Web2C implemetation of \Aleph\ -occasionally uses |null| as~0, and therefore requires |min_halfword=0|. - -@d qi(#)==# {to put an |eight_bits| item into a quarterword} -@d qo(#)==# {to take an |eight_bits| item from a quarterword} -@d hi(#)==# {to put a sixteen-bit item into a halfword} -@d ho(#)==# {to take a sixteen-bit item from a halfword} -@z - -% [8.113] We've put the memory structure into the include file -% `texmf.h', since it's too hard to translate automatically. -@x [8.113] l.2453 - data structures for main memory -@!quarterword = min_quarterword..max_quarterword; {1/4 of a word} -@!halfword=min_halfword..max_halfword; {1/2 of a word} -@!two_choices = 1..2; {used when there are two variants in a record} -@!four_choices = 1..4; {used when there are four variants in a record} -@!two_halves = packed record@;@/ - @!rh:halfword; - case two_choices of - 1: (@!lh:halfword); - 2: (@!b0:quarterword; @!b1:quarterword); - end; -@!four_quarters = packed record@;@/ - @!b0:quarterword; - @!b1:quarterword; - @!b2:quarterword; - @!b3:quarterword; - end; -@!memory_word = record@;@/ - case four_choices of - 1: (@!int:integer); - 2: (@!gr:glue_ratio); - 3: (@!hh:two_halves); - 4: (@!qqqq:four_quarters); - end; -@y -@!quarterword = min_quarterword..max_quarterword; -@!halfword = min_halfword..max_halfword; -@!two_choices = 1..2; {used when there are two variants in a record} -@!four_choices = 1..4; {used when there are four variants in a record} -@=#include "texmfmem.h";@> -@=#include "alephmem.h";@> -@z - -% [9.116] Change `mem' to `zmem', so we can define mem to be a register -% pointer to the memory array for speed. -@x [9.116] l.2545 - definition of main memory array -@!mem : array[mem_min..mem_max] of memory_word; {the big dynamic storage area} -@y -@!yzmem : ^memory_word; {the big dynamic storage area} -@!zmem : ^memory_word; {the big dynamic storage area} -@z - -% [11.165] Fix the word `free' so that it doesn't conflict with the -% standard C library routine of the same name. -@x [11.165] l.3364 - avoid conflict with lib function free() -are debugging.) -@y -are debugging.) - -@d free==free_arr -@z - -@x [11.165] l.3367 - dummy |free| and |was_free| arrays -@!debug @!free: packed array [mem_min..mem_max] of boolean; {free cells} -@t\hskip10pt@>@!was_free: packed array [mem_min..mem_max] of boolean; -@y - {The debug memory arrays have not been mallocated yet.} -@!debug @!free: packed array [0..9] of boolean; {free cells} -@t\hskip10pt@>@!was_free: packed array [0..9] of boolean; -@z - -@x [12.174] l.3526 - Eliminate unsigned comparisons to zero. - begin if (font(p)<font_base)or(font(p)>font_max) then - print_char("*") -@.*\relax@> - else @<Print the font identifier for |font(p)|@>; -@y - begin @<Print the font identifier for |font(p)|@>; -@z - -@x [12.176] l.3563 - Eliminate unsigned comparisons to zero. -begin if p>mem_end then print_esc("CLOBBERED.") -else begin if (font(p)<font_base)or(font(p)>font_max) then print_char("*") -@.*\relax@> - else @<Print the font identifier for |font(p)|@>; -@y -begin if p>mem_end then print_esc("CLOBBERED.") -else begin @<Print the font identifier for |font(p)|@>; -@z - -@x [12.186] l.3747 - Don't worry about strange floating point values. - if abs(mem[p+glue_offset].int)<@'4000000 then print("?.?") - else if abs(g)>float_constant(20000) then -@y 3747 - { The Unix |pc| folks removed this restriction with a remark that - invalid bit patterns were vanishingly improbable, so we follow - their example without really understanding it. - |if abs(mem[p+glue_offset].int)<@'4000000 then print('?.?')| - |else| } - if fabs(g)>float_constant(20000) then -@z - - -@x [16.213] l.4321 - texarray -@!nest:array[0..nest_size] of list_state_record; -@y -@!nest:^list_state_record; -@z - -@x [16.215] l.4344 - remove mem[] reference from initialize. -@<Start a new current page@>; -@y -@/{The following piece of code is a copy of module 991:} -page_contents:=empty; page_tail:=page_head; {|link(page_head):=null;|}@/ -last_glue:=max_halfword; last_penalty:=0; last_kern:=0; -page_depth:=0; page_max_depth:=0; -@z - -@x [17.241] l.5219 - Do `fix_date_and_time' in C. -@ The following procedure, which is called just before \TeX\ initializes its -input and output, establishes the initial values of the date and time. -@^system dependencies@> -Since standard \PASCAL\ cannot provide such information, something special -is needed. The program here simply assumes that suitable values appear in -the global variables \\{sys\_time}, \\{sys\_day}, \\{sys\_month}, and -\\{sys\_year} (which are initialized to noon on 4 July 1776, -in case the implementor is careless). - -@p procedure fix_date_and_time; -begin sys_time:=12*60; -sys_day:=4; sys_month:=7; sys_year:=1776; {self-evident truths} -time:=sys_time; {minutes since midnight} -day:=sys_day; {day of the month} -month:=sys_month; {month of the year} -year:=sys_year; {Anno Domini} -end; -@y -@ The following procedure, which is called just before \TeX\ initializes its -input and output, establishes the initial values of the date and time. -It calls an externally defined |date_and_time|, which also sets up -interrupt catching. See more comments in \.{tex.ch}. -@^system dependencies@> - -@d fix_date_and_time==o_date_and_time(int_base+time_code, - int_base+day_code, - int_base+month_code, - int_base+year_code) -@z - -@x [18.262] l.5584 - Remove more unsigned comparisons to zero. -else if (newtext(p)<0)or(newtext(p)>=str_ptr) then print_esc("NONEXISTENT.") -@y -else if (newtext(p)>=str_ptr) then print_esc("NONEXISTENT.") -@z - -@x [19.271] l.5872 - texarray -@!save_stack : array[0..save_size] of memory_word; -@y -@!save_stack : ^memory_word; -@z - -@x [22.301] l.6432 - texarray -@!input_stack : array[0..stack_size] of in_state_record; -@y -@!input_stack : ^in_state_record; -@z - -@x [22.304] l.6536 - texarray -@!input_file : array[1..max_in_open] of alpha_file; -@!input_file_mode : array[1..max_in_open] of halfword; -@!input_file_translation : array[1..max_in_open] of halfword; -@!line : integer; {current line number in the current source file} -@!line_stack : array[1..max_in_open] of integer; -@y -@!input_file : ^alpha_file; -@!input_file_mode : ^halfword; -@!input_file_translation : ^halfword; -@!line : integer; {current line number in the current source file} -@!line_stack : ^integer; -@z - -@x [22.308] l.6701 - texarray -@!param_stack:array [0..param_size] of pointer; - {token list pointers for parameters} -@y -@!param_stack: ^pointer; - {token list pointers for parameters} -@z - -@x [23.328] l.7043 - keep top of source_filename_stack initialized -incr(in_open); push_input; index:=in_open; -@y -incr(in_open); push_input; index:=in_open; -source_filename_stack[index]:=0;full_source_filename_stack[index]:=0; -@z - -@x [23.331] l.7071 - init source file name stacks -begin input_ptr:=0; max_in_stack:=0; -@y -begin input_ptr:=0; max_in_stack:=0; -source_filename_stack[0]:=0;full_source_filename_stack[0]:=0; -@z - -@x [28.501] l.9747 - \eof18 -if_eof_code: begin scan_four_bit_int; b:=(read_open[cur_val]=closed); - end; -@y -if_eof_code: begin scan_four_bit_int_or_18; - if cur_val=18 then b:=not shellenabledp - else b:=(read_open[cur_val]=closed); - end; -@z - -@x [29.513] l.9951 - Area and extension rules for filenames. -@ The file names we shall deal with for illustrative purposes have the -following structure: If the name contains `\.>' or `\.:', the file area -consists of all characters up to and including the final such character; -otherwise the file area is null. If the remaining file name contains -`\..', the file extension consists of all such characters from the first -remaining `\..' to the end, otherwise the file extension is null. -@y -@ The file names we shall deal with have the -following structure: If the name contains `\./' or `\.:' -(for Amiga only), the file area -consists of all characters up to and including the final such character; -otherwise the file area is null. If the remaining file name contains -`\..', the file extension consists of all such characters from the last -`\..' to the end, otherwise the file extension is null. -@z - -@x [29.513] l.9963 - Area and extension rules for filenames. -@!area_delimiter:pool_pointer; {the most recent `\.>' or `\.:', if any} -@!ext_delimiter:pool_pointer; {the relevant `\..', if any} -@y -@!area_delimiter:pool_pointer; {the most recent `\./', if any} -@!ext_delimiter:pool_pointer; {the most recent `\..', if any} -@z - -@x [29.514] l.9973 - TeX area directories. -@d TEX_area=="TeXinputs:" -@.TeXinputs@> -@d TEX_font_area=="TeXfonts:" -@.TeXfonts@> -@y -In C, the default paths are specified separately. -@z - -@x [29.515] l.9995 - filenames: quoted -begin area_delimiter:=0; ext_delimiter:=0; -@y -begin area_delimiter:=0; ext_delimiter:=0; quoted_filename:=false; -@z - -@x [29.516] l.9992 - filenames: more_name -begin if c=" " then more_name:=false -@y -begin if (c=" ") and stop_at_space and (not quoted_filename) then - more_name:=false -else if c="""" then begin - quoted_filename:=not quoted_filename; - more_name:=true; - end -@z - -@x [29.516] l.9994 - filenames: more_name - if (c=">")or(c=":") then -@y - if IS_DIR_SEP(c) then -@z - -@x [29.516] l.9997 - filenames: more_name - else if (c=".")and(ext_delimiter=0) then ext_delimiter:=cur_length; -@y - else if c="." then ext_delimiter:=cur_length; -@z - -@x [29.517] l.10002 - end_name: string recycling -@ The third. -@^system dependencies@> - -@p procedure end_name; -@y -@ The third. -@^system dependencies@> -If a string is already in the string pool, the function -|slow_make_string| does not create a new string but returns this string -number, thus saving string space. Because of this new property of the -returned string number it is not possible to apply |flush_string| to -these strings. - -@p procedure end_name; -var temp_str: str_number; {result of file name cache lookups} -@!j,@!s,@!t: pool_pointer; {running indices} -@!must_quote:boolean; {whether we need to quote a string} -@z - -@x [29.517] l.10022 - end_name: spaces in filenames -@:TeX capacity exceeded number of strings}{\quad number of strings@> -@y -@:TeX capacity exceeded number of strings}{\quad number of strings@> -str_room(6); {Room for quotes, if needed.} -{add quotes if needed} -if area_delimiter<>0 then begin - {maybe quote |cur_area|} - must_quote:=false; - s:=str_start(str_ptr); - t:=str_start(str_ptr)+area_delimiter; - j:=s; - while (not must_quote) and (j<t) do begin - must_quote:=str_pool[j]=" "; incr(j); - end; - if must_quote then begin - for j:=pool_ptr-1 downto t do str_pool[j+2]:=str_pool[j]; - str_pool[t+1]:=""""; - for j:=t-1 downto s do str_pool[j+1]:=str_pool[j]; - str_pool[s]:=""""; - if ext_delimiter<>0 then ext_delimiter:=ext_delimiter+2; - area_delimiter:=area_delimiter+2; - pool_ptr:=pool_ptr+2; - end; - end; -{maybe quote |cur_name|} -s:=str_start(str_ptr)+area_delimiter; -if ext_delimiter=0 then t:=pool_ptr else t:=str_start(str_ptr)+ext_delimiter-1; -must_quote:=false; -j:=s; -while (not must_quote) and (j<t) do begin - must_quote:=str_pool[j]=" "; incr(j); - end; -if must_quote then begin - for j:=pool_ptr-1 downto t do str_pool[j+2]:=str_pool[j]; - str_pool[t+1]:=""""; - for j:=t-1 downto s do str_pool[j+1]:=str_pool[j]; - str_pool[s]:=""""; - if ext_delimiter<>0 then ext_delimiter:=ext_delimiter+2; - pool_ptr:=pool_ptr+2; - end; -if ext_delimiter<>0 then begin - {maybe quote |cur_ext|} - s:=str_start(str_ptr)+ext_delimiter-1; - t:=pool_ptr; - must_quote:=false; - j:=s; - while (not must_quote) and (j<t) do begin - must_quote:=str_pool[j]=" "; incr(j); - end; - if must_quote then begin - str_pool[t+1]:=""""; - for j:=t-1 downto s do str_pool[j+1]:=str_pool[j]; - str_pool[s]:=""""; - pool_ptr:=pool_ptr+2; - end; - end; -@z - -@x [29.517] l.10011 - end_name: string recycling - str_start(str_ptr+1):=str_start(str_ptr)+area_delimiter; incr(str_ptr); - end; -if ext_delimiter=0 then - begin cur_ext:=""; cur_name:=make_string; -@y - str_start(str_ptr+1):=str_start(str_ptr)+area_delimiter; incr(str_ptr); - temp_str:=search_string(cur_area); - if temp_str>0 then - begin cur_area:=temp_str; - decr(str_ptr); {no |flush_string|, |pool_ptr| will be wrong!} - for j:=str_start(str_ptr+1) to pool_ptr-1 do - begin str_pool[j-area_delimiter]:=str_pool[j]; - end; - pool_ptr:=pool_ptr-area_delimiter; {update |pool_ptr|} - end; - end; -if ext_delimiter=0 then - begin cur_ext:=""; cur_name:=slow_make_string; -@z - -@x [29.517] l.10016 - end_name: string recycling -else begin cur_name:=str_ptr; - str_start(str_ptr+1):=str_start(str_ptr)+ext_delimiter-area_delimiter-1; - incr(str_ptr); cur_ext:=make_string; -@y -else begin cur_name:=str_ptr; - str_start(str_ptr+1):=str_start(str_ptr)+ext_delimiter-area_delimiter-1; - incr(str_ptr); cur_ext:=make_string; - decr(str_ptr); {undo extension string to look at name part} - temp_str:=search_string(cur_name); - if temp_str>0 then - begin cur_name:=temp_str; - decr(str_ptr); {no |flush_string|, |pool_ptr| will be wrong!} - for j:=str_start(str_ptr+1) to pool_ptr-1 do - begin str_pool[j-ext_delimiter+area_delimiter+1]:=str_pool[j]; - end; - pool_ptr:=pool_ptr-ext_delimiter+area_delimiter+1; {update |pool_ptr|} - end; - cur_ext:=slow_make_string; {remake extension string} -@z - -@x [29.518] l.10042 - print_file_name: quote if spaces in names. -begin slow_print(a); slow_print(n); slow_print(e); -@y -var must_quote: boolean; {whether to quote the filename} -@!j:pool_pointer; {index into |str_pool|} -begin -must_quote:=false; -if a<>0 then begin - j:=str_start(a); - while (not must_quote) and (j<str_start(a+1)) do begin - must_quote:=str_pool[j]=" "; incr(j); - end; -end; -if n<>0 then begin - j:=str_start(n); - while (not must_quote) and (j<str_start(n+1)) do begin - must_quote:=str_pool[j]=" "; incr(j); - end; -end; -if e<>0 then begin - j:=str_start(e); - while (not must_quote) and (j<str_start(e+1)) do begin - must_quote:=str_pool[j]=" "; incr(j); - end; -end; -{FIXME: Alternative is to assume that any filename that has to be quoted has - at least one quoted component...if we pick this, a number of insertions - of |print_file_name| should go away. -|must_quote|:=((|a|<>0)and(|str_pool|[|str_start|(|a|)]=""""))or - ((|n|<>0)and(|str_pool|[|str_start|(|n|)]=""""))or - ((|e|<>0)and(|str_pool|[|str_start|(|e|)]=""""));} -if must_quote then print_char(""""); -if a<>0 then - for j:=str_start(a) to str_start(a+1)-1 do - if so(str_pool[j])<>"""" then - print_char(so(str_pool[j])); -if n<>0 then - for j:=str_start(n) to str_start(n+1)-1 do - if so(str_pool[j])<>"""" then - print_char(so(str_pool[j])); -if e<>0 then - for j:=str_start(e) to str_start(e+1)-1 do - if so(str_pool[j])<>"""" then - print_char(so(str_pool[j])); -if must_quote then print_char(""""); -@z - -@x [29.519] l.10051 - have append_to_name skip quotes. -@d append_to_name(#)==begin c:=#; incr(k); - if k<=file_name_size then name_of_file[k]:=xchr[c]; - end -@y -@d append_to_name(#)==begin c:=#; if not (c="""") then begin incr(k); - if k<=file_name_size then name_of_file[k]:=xchr[c]; - end end -@z - -% [29.519] In pack_file_name, leave room for the extra null we append at -% the end of a filename. -@x [29.519] l.10047 - pack_file_name, leave room for the extra null -for j:=str_start(a) to str_start(a+1)-1 do append_to_name(so(str_pool[j])); -@y -if name_of_file then libc_free (name_of_file); -name_of_file:= xmalloc_array(char, 1 + length(a) + length(n) + length(e)); -for j:=str_start(a) to str_start(a+1)-1 do append_to_name(so(str_pool[j])); -@z - -@x [29.519] l.10051 - pack_file_name, append the extra null -for k:=name_length+1 to file_name_size do name_of_file[k]:=' '; -@y -name_of_file[name_length+1]:=0; -@z - -@x [29.520] l.10060 - filenames: default format. -@d format_default_length=20 {length of the |TEX_format_default| string} -@d format_area_length=11 {length of its area part} -@d format_ext_length=4 {length of its `\.{.fmt}' part} -@d format_extension=".fmt" {the extension, as a \.{WEB} constant} -@y -Under {\mc UNIX} we don't give the area part, instead depending -on the path searching that will happen during file opening. Also, the -length will be set in the main program. - -@d format_area_length=0 {length of its area part} -@d format_ext_length=4 {length of its `\.{.fmt}' part} -@d format_extension=".fmt" {the extension, as a \.{WEB} constant} -@z - -@x [29.521] l.10066 - filenames: default format, where `plain.fmt' is. -@!TEX_format_default:packed array[1..format_default_length] of char; - -@ @<Set init...@>= -TEX_format_default:='TeXformats:plain.fmt'; -@y -@!format_default_length: integer; -@!TEX_format_default: ^char; - -@ We set the name of the default format file and the length of that name -in C, instead of Pascal, since we want them to depend on the name of the -program. -@z - -@x [29.523] l.10095 - Change to pack_buffered_name as with pack_file_name. -for j:=1 to n do append_to_name(TEX_format_default[j]); -@y -if name_of_file then libc_free (name_of_file); -name_of_file := xmalloc_array (char, 1 + n + (b - a + 1) + format_ext_length); -for j:=1 to n do append_to_name(TEX_format_default[j]); -@z - -@x [29.523] l.10100 - Change to pack_buffered_name as with pack_file_name. -for k:=name_length+1 to file_name_size do name_of_file[k]:=' '; -@y -name_of_file[name_length+1]:=0; -@z - -@x [29.524] l.10118 - Format file opening: only try once, with path searching. - pack_buffered_name(0,loc,j-1); {try first without the system file area} - if w_open_in(fmt_file) then goto found; - pack_buffered_name(format_area_length,loc,j-1); - {now try the system format file area} - if w_open_in(fmt_file) then goto found; -@y - pack_buffered_name(0,loc,j-1); {Kpathsea does everything} - if w_open_in(fmt_file) then goto found; -@z - -@x [29.524] l.10124 - replace `PLAIN' in error messages with `default'. - wterm_ln('Sorry, I can''t find that format;',' will try PLAIN.'); -@y - wterm ('Sorry, I can''t find the format `'); - fputs (name_of_file + 1, stdout); - wterm ('''; will try `'); - fputs (TEX_format_default + 1, stdout); - wterm_ln ('''.'); -@z - -@x [29.524] l.10132 - replace `PLAIN' in error messages with `default'. - wterm_ln('I can''t find the PLAIN format file!'); -@.I can't find PLAIN...@> -@y - wterm ('I can''t find the format file `'); - fputs (TEX_format_default + 1, stdout); - wterm_ln ('''!'); -@.I can't find the format...@> -@z - -@x [29.525] l.10163 - make_name_string -@p function make_name_string:str_number; -var k:1..file_name_size; {index into |name_of_file|} -begin if (pool_ptr+name_length>pool_size)or(str_ptr=max_strings)or - (cur_length>0) then - make_name_string:="?" -else begin for k:=1 to name_length do append_char(name_of_file[k]); - make_name_string:=make_string; - end; -@y -@p function make_name_string:str_number; -var k:1..file_name_size; {index into |name_of_file|} -save_area_delimiter, save_ext_delimiter: pool_pointer; -save_name_in_progress, save_stop_at_space: boolean; -begin if (pool_ptr+name_length>pool_size)or(str_ptr=max_strings)or - (cur_length>0) then - make_name_string:="?" -else begin for k:=1 to name_length do append_char(name_of_file[k]); - make_name_string:=make_string; - {At this point we also set |cur_name|, |cur_ext|, and |cur_area| to - match the contents of |name_of_file|.} - save_area_delimiter:=area_delimiter; save_ext_delimiter:=ext_delimiter; - save_name_in_progress:=name_in_progress; save_stop_at_space:=stop_at_space; - name_in_progress:=true; - begin_name; - stop_at_space:=false; - k:=1; - while (k<=name_length)and(more_name(name_of_file[k])) do - incr(k); - stop_at_space:=save_stop_at_space; - end_name; - name_in_progress:=save_name_in_progress; - area_delimiter:=save_area_delimiter; ext_delimiter:=save_ext_delimiter; - end; -@z - -@x [29.526] l.10193 - look for a left_brace when scanning a file name -@p procedure scan_file_name; -label done; -@y -@p procedure scan_file_name; -label done; -var - @!save_warning_index: pointer; -begin - save_warning_index := warning_index; - warning_index := cur_cs; {store |cur_cs| here to remember until later} - @<Get the next non-blank non-relax non-call...@>; {here the program expands - tokens and removes spaces and \.{\\relax}es from the input. The \.{\\relax} - removal follows LuaTeX''s implementation, and other cases of - balanced text scanning.} - back_input; {return the last token to be read by either code path} - if cur_cmd=left_brace then - scan_file_name_braced - else -@z - -@x [29.526] l.10194 - stop scanning file name if we're at end-of-line. - if not more_name(cur_chr) then goto done; -@y - {If |cur_chr| is a space and we're not scanning a token list, check - whether we're at the end of the buffer. Otherwise we end up adding - spurious spaces to file names in some cases.} - if (cur_chr=" ") and (state<>token_list) and (loc>limit) then goto done; - if not more_name(cur_chr) then goto done; -@z - -@x [29.526] l.10203 - scan a bgroup/egroup-delimited file name -done: end_name; name_in_progress:=false; -end; -@y - end; -done: end_name; name_in_progress:=false; -warning_index := save_warning_index; {restore |warning_index|} -end; - -@ When |scan_file_name| starts it looks for a |left_brace| -(skipping \.{\\relax}es, as other \.{\\toks}-like primitives). -If a |left_brace| is found, then the procedure scans a file -name contained in a balanced token list, expanding tokens as -it goes. When the scanner finds the balanced token list, it -is converted into a string and fed character-by-character to -|more_name| to do its job the same as in the ``normal'' file -name scanning. - -@p procedure scan_file_name_braced; -var - @!save_scanner_status: small_number; {|scanner_status| upon entry} - @!save_def_ref: pointer; {|def_ref| upon entry, important if inside `\.{\\message}} - @!save_cur_cs: pointer; - @!s: str_number; {temp string} - @!p: pointer; {temp pointer} - @!i: integer; {loop tally} - @!save_stop_at_space: boolean; {this should be in tex.ch} - @!dummy: boolean; - {Initialising} -begin save_scanner_status := scanner_status; {|scan_toks| sets |scanner_status| to |absorbing|} - save_def_ref := def_ref; {|scan_toks| uses |def_ref| to point to the token list just read} - save_cur_cs := cur_cs; {we set |cur_cs| back a few tokens to use in runaway errors} - {Scanning a token list} - cur_cs := warning_index; {for possible runaway error} - {mimick |call_func| from pdfTeX} - if scan_toks(false, true) <> 0 then do_nothing; {actually do the scanning} - {s := tokens_to_string(def_ref);} - old_setting := selector; selector:=new_string; - show_token_list(link(def_ref),null,pool_size-pool_ptr); - selector := old_setting; - s := make_string; - {turns the token list read in a string to input} - {Restoring some variables} - delete_token_ref(def_ref); {remove the token list from memory} - def_ref := save_def_ref; {and restore |def_ref|} - cur_cs := save_cur_cs; {restore |cur_cs|} - scanner_status := save_scanner_status; {restore |scanner_status|} - {Passing the read string to the input machinery} - save_stop_at_space := stop_at_space; {save |stop_at_space|} - stop_at_space := false; {set |stop_at_space| to false to allow spaces in file names} - begin_name; - for i:=str_start(s) to str_start(s+1)-1 do - dummy := more_name(str_pool[i]); {add each read character to the current file name} - stop_at_space := save_stop_at_space; {restore |stop_at_space|} -end; -@z - -@x [29.530] l.10245 - prompt_file_name: prevent empty filenames. -var k:0..buf_size; {index into |buffer|} -@y -var k:0..buf_size; {index into |buffer|} -@!saved_cur_name:str_number; {to catch empty terminal input} -@!saved_cur_ext:str_number; {to catch empty terminal input} -@!saved_cur_area:str_number; {to catch empty terminal input} -@z - -@x [29.530] l.10252 - prompt_file_name: No default extension is TeX input file. -if e=".tex" then show_context; -@y -if (e=".tex") or (e="") then show_context; -print_ln; print_c_string(prompt_file_name_help_msg); -if (e<>"") then - begin - print("; default file extension is `"); print(e); print("'"); - end; -print(")"); print_ln; -@z - -@x [29.530] l.10258 - prompt_file_name: prevent empty filenames. -clear_terminal; prompt_input(": "); @<Scan file name in the buffer@>; -if cur_ext="" then cur_ext:=e; -@y -saved_cur_name:=cur_name; -saved_cur_ext:=cur_ext; -saved_cur_area:=cur_area; -clear_terminal; prompt_input(": "); @<Scan file name in the buffer@>; -if (length(cur_name)=0) and (cur_ext="") and (cur_area="") then - begin - cur_name:=saved_cur_name; - cur_ext:=saved_cur_ext; - cur_area:=saved_cur_area; - end -else - if cur_ext="" then cur_ext:=e; -@z - -@x [29.532] l.10263 - avoid conflict, `logname' in <unistd.h> on some systems. -@ Here's an example of how these conventions are used. Whenever it is time to -ship out a box of stuff, we shall use the macro |ensure_dvi_open|. - -@y -@ Here's an example of how these conventions are used. Whenever it is time to -ship out a box of stuff, we shall use the macro |ensure_dvi_open|. - -@d log_name == texmf_log_name -@z - -@x [29.534] l.10285 - Adjust for C string conventions. -@!months:packed array [1..36] of char; {abbreviations of month names} -@y -@!months:const_cstring; -@z - -@x [29.534] l. - Send the job_name to the file recorder. -begin old_setting:=selector; -if job_name=0 then job_name:="texput"; -@y -begin old_setting:=selector; -if job_name=0 then job_name:=get_job_name("texput"); -pack_job_name(".ofl"); -recorder_change_filename(stringcast(name_of_file+1)); -@z - -@x [29.536] l.10324 - Print rest of banner. -begin wlog(eTeX_banner); -@y -begin wlog(eTeX_banner); -wlog(version_string); -@z - -@x [29.536] l.10327 - Adjust for C string conventions. -months:='JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC'; -@y -months := ' JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC'; -@z - -% [29.537] Use a path when calling a_open_in to do a \input; also, try -% to open the file with and without the `.tex' extension, regardless of -% whether the file already has an extension. This allows filenames like -% `foo' and `foo.bar.tex', as well as `foo.tex' and `foo.bar'. -@x [29.537] l.10338 - start_input -begin scan_file_name; {set |cur_name| to desired file name} -if cur_ext="" then cur_ext:=".tex"; -pack_cur_name; -loop@+ begin begin_file_reading; {set up |cur_file| and new level of input} - if a_open_in(cur_file) then goto done; - if cur_area="" then - begin pack_file_name(cur_name,TEX_area,cur_ext); - if a_open_in(cur_file) then goto done; - end; -@y -var temp_str: str_number; -begin scan_file_name; {set |cur_name| to desired file name} -pack_cur_name; -loop@+ begin begin_file_reading; {set up |cur_file| and new level of input} - tex_input_type := 1; {Tell |open_input| we are \.{\\input}.} - {Kpathsea tries all the various ways to get the file.} - if kpse_in_name_ok(name_of_file+1) - and a_open_in(cur_file, kpse_tex_format) then - goto done; -@z - -@x [29.537] l.10348 - start_input: don't force ".tex" extension. - prompt_file_name("input file name",".tex"); -@y - prompt_file_name("input file name",""); -@z - -@x [29.537] l.10350 - start_input: string recycling -done: name:=a_make_name_string(cur_file); -@y -done: name:=a_make_name_string(cur_file); -if name=str_ptr-1 then {we can try to conserve string pool space now} - begin temp_str:=search_string(name); - if temp_str>0 then - begin name:=temp_str; flush_string; - end; - end; -@z - -@x [29.537] l.10352 - start_input: use different heuristic for initex. - begin job_name:=cur_name; open_log_file; -@y - begin job_name:=get_job_name(cur_name); open_log_file; -@z - -@x [29.537] l.10359 - start_input: don't return filename to string pool. -if name=str_ptr-1 then {conserve string pool space (but see note above)} - begin flush_string; name:=cur_name; - end; -@y -@z - -@x [30.560] l.10898 - Check lengths -@!file_opened:boolean; {was |tfm_file| successfully opened?} -@y -@!name_too_long:boolean; {|nom| or |aire| exceeds 255 bytes?} -@!file_opened:boolean; {was |tfm_file| successfully opened?} -@z - -@x [30.561] l.10939 - Check lengths -else print(" not loadable: Metric (TFM/OFM) file not found"); -@y -else if name_too_long then print(" not loadable: Metric (TFM/OFM) file name too long") -else print(" not loadable: Metric (TFM/OFM) file not found"); -@z - -@x [30.563] l.10960 - Check lengths -file_opened:=false; -@y -file_opened:=false; -name_too_long:=(length(nom)>255)or(length(aire)>255); -if name_too_long then abort; -@z - -@x [30.563] l.10961 - Don't use TEX_font_area. -if aire="" then pack_file_name(nom,TEX_font_area,".ofm") -else pack_file_name(nom,aire,".ofm"); -if not b_open_in(tfm_file) then abort; -@y -{|kpse_find_file| will append the |".ofm"| or |".tfm"|, - and avoid searching the disk before the font alias files as well.} -pack_file_name(nom,aire,""); -if not ofm_open_in(tfm_file) then abort; -@z - -% [30.564] Reading the tfm file. As a special case, whenever we open a -% tfm file, we read its first byte into `tfm_temp' right away. TeX -% looks at `fbyte' before calling `fget', so it ends up seeing every -% byte. This is Pascal-like I/O. -@x [30.564] l.10956 - reading the tfm file, define fget & fbyte -@d fget==get(tfm_file) -@d fbyte==tfm_file^ -@y -@d fget==tfm_temp:=getc(tfm_file) -@d fbyte==tfm_temp -@z - -% [32.575] We only want `eof' on the TFM file to be true if we -% previously had EOF, not if we're at EOF now. This is like `feof', and -% unlike our implementation of `eof' elsewhere. -@x [32.575] l.11161 - Reading the tfm file, replace eof() by feof(). -if eof(tfm_file) then abort; -@y -if feof(tfm_file) then abort; -@z - -@x [32.595] l.11860 - texarray -@!dvi_buf:array[dvi_index] of real_eight_bits; {buffer for \.{DVI} output} -@!half_buf:dvi_index; {half of |dvi_buf_size|} -@!dvi_limit:dvi_index; {end of the current half buffer} -@!dvi_ptr:dvi_index; {the next available buffer address} -@y -@!dvi_buf:^real_eight_bits; {buffer for \.{DVI} output} -@!half_buf:integer; {half of |dvi_buf_size|} -@!dvi_limit:integer; {end of the current half buffer} -@!dvi_ptr:integer; {the next available buffer address} -@z - -@x [32.597] l.11886 - write_dvi done in C. -@p procedure write_dvi(@!a,@!b:dvi_index); -var k:dvi_index; -begin for k:=a to b do write(dvi_file,dvi_buf[k]); -end; -@y -In C, we use a macro to call |fwrite| or |write| directly, writing all -the bytes in one shot. Much better even than writing four -bytes at a time. -@z - -@x [32.601] l.11911 - check dvi file size -each time, we use the macro |dvi_out|. -@y -each time, we use the macro |dvi_out|. - -The length of |dvi_file| should not exceed |@"7FFFFFFF|; we set |cur_s:=-2| -to prevent further \.{DVI} output causing infinite recursion. -@z - -@x [32.601] l.11918 - dvi_swap: check dvi file size -begin if dvi_limit=dvi_buf_size then -@y -begin if dvi_ptr>(@"7FFFFFFF-dvi_offset) then - begin cur_s:=-2; - fatal_error("dvi length exceeds ""7FFFFFFF"); -@.dvi length exceeds...@> - end; -if dvi_limit=dvi_buf_size then -@z - -@x [32.602] l.11932 - empty the last bytes: check dvi file size -if dvi_ptr>0 then write_dvi(0,dvi_ptr-1) -@y -if dvi_ptr>(@"7FFFFFFF-dvi_offset) then - begin cur_s:=-2; - fatal_error("dvi length exceeds ""7FFFFFFF"); -@.dvi length exceeds...@> - end; -if dvi_ptr>0 then write_dvi(0,dvi_ptr-1) -@z - -@x [32.617] l.12261 - Use output_comment if the user set it. Assume it's short enough. - old_setting:=selector; selector:=new_string; -@y -if output_comment then - begin l:=strlen(output_comment); dvi_out(l); - for s:=0 to l-1 do dvi_out(output_comment[s]); - end -else begin {the default code is unchanged} - old_setting:=selector; selector:=new_string; -@z - -@x [32.617] l.12268 - Use output_comment if the user set it. - pool_ptr:=str_start(str_ptr); {flush the current string} -@y - pool_ptr:=str_start(str_ptr); {flush the current string} -end; -@z - -% We output each portion of the page as we get to it, if we are using -% IPC, so that the previewer (TeXView) can display it immediately. [SPM] -@x [32.640] l.12690 - IPC -dvi_out(eop); incr(total_pages); cur_s:=-1; -@y -dvi_out(eop); incr(total_pages); cur_s:=-1; -ifdef ('IPC') -if ipc_on>0 then - begin if dvi_limit=half_buf then - begin write_dvi(half_buf, dvi_buf_size-1); - flush_dvi; - dvi_gone:=dvi_gone+half_buf; - end; - if dvi_ptr>(@"7FFFFFFF-dvi_offset) then - begin cur_s:=-2; - fatal_error("dvi length exceeds ""7FFFFFFF"); -@.dvi length exceeds...@> - end; - if dvi_ptr>0 then - begin write_dvi(0, dvi_ptr-1); - flush_dvi; - dvi_offset:=dvi_offset+dvi_ptr; dvi_gone:=dvi_gone+dvi_ptr; - end; - dvi_ptr:=0; dvi_limit:=dvi_buf_size; - ipc_page(dvi_gone); - end; -endif ('IPC'); -@z - -@x [32.645] l.12766 - check dvi file size -else begin dvi_out(post); {beginning of the postamble} -@y -else if cur_s<>-2 then - begin dvi_out(post); {beginning of the postamble} -@z - -@x [32.645] l.12775 - Use dvi_offset instead of dvi_buf_size with IPC stuff. - k:=4+((dvi_buf_size-dvi_ptr) mod 4); {the number of 223's} -@y -ifdef ('IPC') - k:=7-((3+dvi_offset+dvi_ptr) mod 4); {the number of 223's} -endif ('IPC') -ifndef ('IPC') - k:=4+((dvi_buf_size-dvi_ptr) mod 4); {the number of 223's} -endifn ('IPC') -@z - -@x [32.642] l.12773 - use print_file_name - print_nl("Output written on "); slow_print(output_file_name); -@y - print_nl("Output written on "); print_file_name(0, output_file_name, 0); -@z - -@x [42.920] l.18068 - bigtrie: allow larger hyphenation tries. -@!trie_pointer=0..trie_size; {an index into |trie|} -@y -@!trie_pointer=0..ssup_trie_size; {an index into |trie|} -@z - -@x [42.921] l.18075 - bigtrie: allow larger hyphenation tries. -@!trie:array[trie_pointer] of two_halves; {|trie_link|, |trie_char|, |trie_op|} -@y -{We will dynamically allocate this arrays.} -@!trie:^two_halves; {|trie_link|} -@z - -%%%%%%%% dynamic hyph_size -@x 18126 m.925 -different from $\alpha$, we can conclude that $\alpha$ is not in the table. -@y 18126 -different from $\alpha$, we can conclude that $\alpha$ is not in the table. -This is a clever scheme which saves the need for a hash link array. -However, it is difficult to increase the size of the hyphen exception -arrays. To make this easier, the ordered hash has been replaced by -a simple hash, using an additional array |hyph_link|. The value -|0| in |hyph_link[k]| means that there are no more entries corresponding -to the specific hash chain. When |hyph_link[k]>0|, the next entry in -the hash chain is |hyph_link[k]-1|. This value is used because the -arrays start at |0|. -@z - -%%%%%%%% dynamic hyph_size -@x 18134 m.925 -@!hyph_pointer=0..hyph_size; {an index into the ordered hash table} -@y 18134 -@!hyph_pointer=0..ssup_hyph_size; {index into hyphen exceptions hash table; - enlarging this requires changing (un)dump code} -@z - -%%%%%%%% dynamic hyph_size -@x 18137 m.926 -@!hyph_word:array[hyph_pointer] of str_number; {exception words} -@!hyph_list:array[hyph_pointer] of pointer; {lists of hyphen positions} -@!hyph_count:hyph_pointer; {the number of words in the exception dictionary} -@y 18139 -@!hyph_word: ^str_number; {exception words} -@!hyph_list: ^pointer; {list of hyphen positions} -@!hyph_link: ^hyph_pointer; {link array for hyphen exceptions hash table} -@!hyph_count:integer; {the number of words in the exception dictionary} -@!hyph_next:integer; {next free slot in hyphen exceptions hash table} -@z - -%%%%%%%% dynamic hyph_size -@x 18145 m.928 -for z:=0 to hyph_size do - begin hyph_word[z]:=0; hyph_list[z]:=null; - end; -hyph_count:=0; -@y 18148 -for z:=0 to hyph_size do - begin hyph_word[z]:=0; hyph_list[z]:=null; hyph_link[z]:=0; - end; -hyph_count:=0; -hyph_next:=hyph_prime+1; if hyph_next>hyph_size then hyph_next:=hyph_prime; -@z - -%%%%%%%% dynamic hyph_size -@x 18163 m.930 -h:=hc[1]; incr(hn); hc[hn]:=cur_lang; -for j:=2 to hn do h:=(h+h+hc[j]) mod hyph_size; -loop@+ begin @<If the string |hyph_word[h]| is less than \(hc)|hc[1..hn]|, - |goto not_found|; but if the two strings are equal, - set |hyf| to the hyphen positions and |goto found|@>; - if h>0 then decr(h)@+else h:=hyph_size; - end; -not_found: decr(hn) -@y 18170 -h:=hc[1]; incr(hn); hc[hn]:=cur_lang; -for j:=2 to hn do h:=(h+h+hc[j]) mod hyph_prime; -loop@+ begin @<If the string |hyph_word[h]| is less than \(hc)|hc[1..hn]|, - |goto not_found|; but if the two strings are equal, - set |hyf| to the hyphen positions and |goto found|@>; - h:=hyph_link[h]; if h=0 then goto not_found; - decr(h); - end; -not_found: decr(hn) -@z - -%%%%%%%% dynamic hyph_size -@x 18172 m.931 -@ @<If the string |hyph_word[h]| is less than \(hc)...@>= -k:=hyph_word[h]; if k=0 then goto not_found; -if length(k)<hn then goto not_found; -if length(k)=hn then - begin j:=1; u:=str_start(k); - repeat if so(str_pool[u])<hc[j] then goto not_found; - if so(str_pool[u])>hc[j] then goto done; - incr(j); incr(u); - until j>hn; - @<Insert hyphens as specified in |hyph_list[h]|@>; - decr(hn); goto found; - end; -done: -@y 18184 -@ @<If the string |hyph_word[h]| is less than \(hc)...@>= -{This is now a simple hash list, not an ordered one, so -the module title is no longer descriptive.} -k:=hyph_word[h]; if k=0 then goto not_found; -if length(k)=hn then - begin j:=1; u:=str_start(k); - repeat - if so(str_pool[u])<>hc[j] then goto done; - incr(j); incr(u); - until j>hn; - @<Insert hyphens as specified in |hyph_list[h]|@>; - decr(hn); goto found; - end; -done: -@z - -% The GNU C compiler complains of unused variables. -@x -@!s,@!t:str_number; {strings being compared or stored} -@y -@!s:str_number; {strings being compared or stored} -@z - -%%%%%%%% dynamic hyph_size -@x 18274 m.939 - begin h:=(h+h+hc[j]) mod hyph_size; -@y 18274 - begin h:=(h+h+hc[j]) mod hyph_prime; -@z - -%%%%%%%% dynamic hyph_size -@x 18281 m.940 -@ @<Insert the \(p)pair |(s,p)|...@>= -if hyph_count=hyph_size then overflow("exception dictionary",hyph_size); -@:TeX capacity exceeded exception dictionary}{\quad exception dictionary@> -incr(hyph_count); -while hyph_word[h]<>0 do - begin @<If the string |hyph_word[h]| is less than \(or)or equal to - |s|, interchange |(hyph_word[h],hyph_list[h])| with |(s,p)|@>; - if h>0 then decr(h)@+else h:=hyph_size; - end; -hyph_word[h]:=s; hyph_list[h]:=p -@y 18290 -@ @<Insert the \(p)pair |(s,p)|...@>= - if hyph_next <= hyph_prime then - while (hyph_next>0) and (hyph_word[hyph_next-1]>0) do decr(hyph_next); -if (hyph_count=hyph_size)or(hyph_next=0) then - overflow("exception dictionary",hyph_size); -@:TeX capacity exceeded exception dictionary}{\quad exception dictionary@> -incr(hyph_count); -while hyph_word[h]<>0 do - begin @<If the string |hyph_word[h]| is less than \(or)or equal to - |s|, interchange |(hyph_word[h],hyph_list[h])| with |(s,p)|@>; - if hyph_link[h]=0 then - begin - hyph_link[h]:=hyph_next; - if hyph_next >= hyph_size then hyph_next:=hyph_prime; - if hyph_next > hyph_prime then incr(hyph_next); - end; - h:=hyph_link[h]-1; - end; - -found: hyph_word[h]:=s; hyph_list[h]:=p -@z - -%%%%%%%% dynamic hyph_size -@x 18292 m.941 -@ @<If the string |hyph_word[h]| is less than \(or)...@>= -k:=hyph_word[h]; -if length(k)<length(s) then goto found; -if length(k)>length(s) then goto not_found; -u:=str_start(k); v:=str_start(s); -repeat if str_pool[u]<str_pool[v] then goto found; -if str_pool[u]>str_pool[v] then goto not_found; -incr(u); incr(v); -until u=str_start(k+1); -found:q:=hyph_list[h]; hyph_list[h]:=p; p:=q;@/ -t:=hyph_word[h]; hyph_word[h]:=s; s:=t; -not_found: -@y 18303 -@ @<If the string |hyph_word[h]| is less than \(or)...@>= -{This is now a simple hash list, not an ordered one, so -the module title is no longer descriptive.} -k:=hyph_word[h]; -if length(k)<>length(s) then goto not_found; -u:=str_start(k); v:=str_start(s); -repeat if str_pool[u]<>str_pool[v] then goto not_found; -incr(u); incr(v); -until u=str_start(k+1); -{repeat hyphenation exception; flushing old data} -flush_string; s:=hyph_word[h]; {avoid |slow_make_string|!} -decr(hyph_count); -{ We could also |flush_list(hyph_list[h]);|, but it interferes - with \.{trip.log}. } -goto found; -not_found: -@z - -@x [43.943] l.18346 - web2c can't parse negative lower bounds in arrays. Sorry. -@!init @!trie_op_hash:array[-trie_op_size..trie_op_size] of 0..trie_op_size; -@y -@!init @!trie_op_hash:array[neg_trie_op_size..trie_op_size] of 0..trie_op_size; -@z - -@x [43.944] l.18365 - web2c can't parse negative lower bounds in arrays. Sorry -var h:-trie_op_size..trie_op_size; {trial hash location} -@y -var h:neg_trie_op_size..trie_op_size; {trial hash location} -@z - -@x [43.944] l.18370 - Another casting problem, and use |neg_trie_op_size|. -begin h:=abs(n+313*d+361*v+1009*cur_lang) mod (trie_op_size+trie_op_size) - - trie_op_size; -@y -begin h:=abs(n+313*d+361*v+1009*cur_lang) mod (trie_op_size-neg_trie_op_size) - + neg_trie_op_size; -@z - -@x [43.947] l.18438 - Dynamically allocate arrays, and a casting problem. -@!init @!trie_c:packed array[trie_pointer] of ASCII_code; - {characters to match} -@t\hskip10pt@>@!trie_o:packed array[trie_pointer] of quarterword; - {operations to perform} -@t\hskip10pt@>@!trie_l:packed array[trie_pointer] of trie_pointer; - {left subtrie links} -@t\hskip10pt@>@!trie_r:packed array[trie_pointer] of trie_pointer; - {right subtrie links} -@t\hskip10pt@>@!trie_ptr:trie_pointer; {the number of nodes in the trie} -@t\hskip10pt@>@!trie_hash:packed array[trie_pointer] of trie_pointer; - {used to identify equivalent subtries} -tini -@y -@!init @!trie_c:^ASCII_code; - {characters to match} -@t\hskip10pt@>@!trie_o:^quarterword; - {operations to perform} -@t\hskip10pt@>@!trie_l:^trie_pointer; - {left subtrie links} -@t\hskip10pt@>@!trie_r:^trie_pointer; - {right subtrie links} -@t\hskip10pt@>@!trie_ptr:trie_pointer; {the number of nodes in the trie} -@t\hskip10pt@>@!trie_hash:^trie_pointer; - {used to identify equivalent subtries} -tini -@z - -@x [43.590] l.18524 - Dynamically allocate & larger tries. -@!init @!trie_taken:packed array[1..trie_size] of boolean; - {does a family start here?} -@t\hskip10pt@>@!trie_min:array[ASCII_code] of trie_pointer; - {the first possible slot for each character} -@t\hskip10pt@>@!trie_max:trie_pointer; {largest location used in |trie|} -@t\hskip10pt@>@!trie_not_ready:boolean; {is the trie still in linked form?} -tini -@y -@!init @!trie_taken: ^boolean; - {does a family start here?} -@t\hskip10pt@>@!trie_min:^trie_pointer; - {the first possible slot for each character} -@t\hskip10pt@>@!trie_max:trie_pointer; {largest location used in |trie|} -@t\hskip10pt@>@!trie_not_ready:boolean; {is the trie still in linked form?} -tini -@z - -@x [43.951] l.18539 - Dynamically allocate. -trie_not_ready:=true; trie_root:=0; trie_c[0]:=si(0); trie_ptr:=0; -@y -trie_not_ready:=true; -@z - -%% -%% We can rewrite the original code after "main_loop_move+2" upto the -%% "tail_append(lig_stack)" in module 1036 as -%% -% -% main_loop_move+2: -% if font_bc[main_f]<=cur_chr then -% if cur_chr<=font_ec[main_f] then -% begin main_i:=char_info(main_f)(cur_l); -% if char_exists(main_i) goto main_loop_move+3; -% end; -% char_warning(main_f,cur_chr); free_avail(lig_stack); goto big_switch; -% main_loop_move+3: -% tail_append(lig_stack) {|main_loop_lookahead| is next} -% - -@x [49.1252] l.23230 - INI = VIR, so have to do runtime test. -hyph_data: if cur_chr=1 then - begin @!init new_patterns; goto done;@;@+tini@/ -@y 23215 -hyph_data: if cur_chr=1 then - begin @!init if ini_version then - begin new_patterns; goto done; end; @;@+tini@/ -@z - -@x -@!flushable_string:str_number; {string not yet referenced} -@y -@z - -% undo Knuth's change because -% a) the string is already replaced in |scan_file_name| and therefore -% b) the wrong string will get flushed!!! -% -@x [49.1260] l.23331 new_font: string recycling -- already done -flushable_string:=str_ptr-1; -@y -@z - -% If you don't want to remove code with the following two changes, -% please replace the former change by -% -% @x -% flushable_string:=str_ptr-1; -% @y -% if cur_name=str_ptr-1 then -% flushable_string:=str_ptr-1 -% else -% flushable_string:=str_ptr; {number of a non-existing} -% @z -% -% otherwise the wrong string will get removed by |flush_string|!! -% -@x [49.1260] l.23334 new_font: string recycling -- already done - begin if cur_name=flushable_string then - begin flush_string; cur_name:=font_name(f); - end; - if s>0 then -@y - begin if s>0 then -@z - -@x [49.1265] if batchmode, mktex... scripts should be silent. -interaction:=cur_chr; -@y -interaction:=cur_chr; -if interaction = batch_mode -then kpse_make_tex_discard_errors := 1 -else kpse_make_tex_discard_errors := 0; -@z - -@x [49.1275] l.23441 - Same stuff as for \input, this time for \openin. - if cur_ext="" then cur_ext:=".tex"; - pack_cur_name; - if a_open_in(read_file[n]) then read_open[n]:=just_open; -@y - pack_cur_name; - tex_input_type:=0; {Tell |open_input| we are \.{\\openin}.} - if kpse_in_name_ok(name_of_file+1) - and a_open_in(read_file[n], kpse_tex_format) then - read_open[n]:=just_open; -@z - -@x [50.1301] l.23679 - INI = VIR, so runtime test. -format_ident:=" (INIALEPH)"; -@y -if ini_version then format_ident:=" (INIALEPH)"; -@z - -% The GNU C compiler complains of unused variables. -% Add format_engine. -@x [50.1302] l.23690 - Eliminate now-unused variable `w' in `store_fmt_file'. -var j,@!k,@!l:integer; {all-purpose indices} -@!p,@!q: pointer; {all-purpose pointers} -@!x: integer; {something to dump} -@!w: four_quarters; {four ASCII codes} -@y -var j,@!k:integer; {all-purpose indices} -@!p,@!q: pointer; {all-purpose pointers} -@!x: integer; {something to dump} -@!format_engine: ^char; -@z - -@x [50.1303] l.23722 - Ditto, for `load_fmt_file'. -@!w: four_quarters; {four ASCII codes} -@y -@!format_engine: ^char; -@z - -@x [50.1305] l.23751 - Do dumping and undumping of fmt files in C. -@d dump_wd(#)==begin fmt_file^:=#; put(fmt_file);@+end -@d dump_int(#)==begin fmt_file^.int:=#; put(fmt_file);@+end -@d dump_hh(#)==begin fmt_file^.hh:=#; put(fmt_file);@+end -@d dump_qqqq(#)==begin fmt_file^.qqqq:=#; put(fmt_file);@+end -@y -@z -@x [1306] -@d undump_wd(#)==begin get(fmt_file); #:=fmt_file^;@+end -@d undump_int(#)==begin get(fmt_file); #:=fmt_file^.int;@+end -@d undump_hh(#)==begin get(fmt_file); #:=fmt_file^.hh;@+end -@d undump_qqqq(#)==begin get(fmt_file); #:=fmt_file^.qqqq;@+end -@y -@z -@x [still 1306] debug format file -@d undump_size_end_end(#)==too_small(#)@+else undump_end_end -@y -@d format_debug_end(#)== - write_ln (stderr, ' = ', #); - end; -@d format_debug(#)== - if debug_format_file then begin - write (stderr, 'fmtdebug:', #); - format_debug_end -@d undump_size_end_end(#)== - too_small(#)@+else format_debug (#)(x); undump_end_end -@z - -@x [50,1307] l.23779 - texarray -dump_int(@$);@/ -@y -dump_int(@"57325458); {Web2C \TeX's magic constant: "W2TX"} -{Align engine to 4 bytes with one or more trailing NUL} -x:=strlen(engine_name); -format_engine:=xmalloc_array(char,x+4); -strcpy(format_engine, engine_name); -for k:=x to x+3 do format_engine[k]:=0; -x:=x+4-(x mod 4); -dump_int(x);dump_things(format_engine[0], x); -libc_free(format_engine);@/ -dump_int(@$);@/ -dump_int(max_halfword);@/ -@z - -%%%%%%%% dynamic hyph_size -@x 23784 m.1307 -dump_int(hyph_size) -@y 23784 -dump_int(hyph_prime) -@z - -@x [50.1308] l.23793 - texarray -x:=fmt_file^.int; -if x<>@$ then goto bad_fmt; {check that strings are the same} -@/@<Undump the \eTeX\ state@>@/ -undump_int(x); -if x<>mem_bot then goto bad_fmt; -undump_int(x); -if x<>mem_top then goto bad_fmt; -@y -@+init -if ini_version then - begin libc_free(str_pool); libc_free(str_start_ar); libc_free(yzmem); - end; -@+tini -undump_int(x); -format_debug('format magic number')(x); -if x<>@"57325458 then goto bad_fmt; {not a format file} -undump_int(x); -format_debug('engine name size')(x); -if (x<0) or (x>256) then goto bad_fmt; {corrupted format file} -format_engine:=xmalloc_array(char, x); -undump_things(format_engine[0], x); -format_engine[x-1]:=0; {force string termination, just in case} -if strcmp(engine_name, format_engine) then - begin wake_up_terminal; - wterm_ln('---! ', stringcast(name_of_file+1), ' was written by ', format_engine); - libc_free(format_engine); - goto bad_fmt; -end; -libc_free(format_engine); -undump_int(x); -format_debug('string pool checksum')(x); -if x<>@$ then begin {check that strings are the same} - wake_up_terminal; - wterm_ln('---! ', stringcast(name_of_file+1), - ' made by different executable version'); - goto bad_fmt; -end; -undump_int(x); -if x<>max_halfword then goto bad_fmt; {check |max_halfword|} -@/@<Undump the \eTeX\ state@>@/ - -undump_int(x); format_debug ('mem_bot')(x); -if x<>mem_bot then goto bad_fmt; -undump_int(mem_top); format_debug ('mem_top')(mem_top); -if mem_bot+1100>mem_top then goto bad_fmt; - - -head:=contrib_head; tail:=contrib_head; - page_tail:=page_head; {page initialization} - -mem_min := mem_bot - extra_mem_bot; -mem_max := mem_top + extra_mem_top; - -yzmem:=xmalloc_array (memory_word, mem_max - mem_min + 1); -zmem := yzmem - mem_min; {this pointer arithmetic fails with some compilers} -mem := zmem; -@z - -%%%%%%%% dynamic hyph_size -@x 23804 m.1308 -if x<>hyph_size then goto bad_fmt -@y 23804 -if x<>hyph_prime then goto bad_fmt -@z - -% [1309] Make dumping/undumping more efficient by doing whole arrays at -% a time, via fread/fwrite in texmfmp.c. -@x [50.1309] l.23814 - Make dumping/undumping more efficient. -for k:=too_big_char to str_ptr do dump_int(str_start(k)); -k:=0; -while k+4<pool_ptr do - begin dump_four_ASCII; k:=k+4; - end; -k:=pool_ptr-4; dump_four_ASCII; -@y -dump_things(str_start(too_big_char), str_ptr-too_big_char+1); -dump_things(str_pool[0], pool_ptr); -@z - -@x [50.1310] l.23829 - Make dumping/undumping more efficient. -undump_size(0)(pool_size)('string pool size')(pool_ptr); -undump_size(0)(max_strings)('max strings')(str_ptr); -for k:=too_big_char to str_ptr do undump(0)(pool_ptr)(str_start(k)); -k:=0; -while k+4<pool_ptr do - begin undump_four_ASCII; k:=k+4; - end; -k:=pool_ptr-4; undump_four_ASCII; -@y -undump_size(0)(sup_pool_size-pool_free)('string pool size')(pool_ptr); -if pool_size<pool_ptr+pool_free then - pool_size:=pool_ptr+pool_free; -undump_size(0)(sup_max_strings-strings_free)('sup strings')(str_ptr);@/ -if max_strings<str_ptr+strings_free then - max_strings:=str_ptr+strings_free; -str_start_ar:=xmalloc_array(pool_pointer, max_strings-biggest_char); -undump_things(str_start(too_big_char), str_ptr-too_big_char+1); -str_pool:=xmalloc_array(packed_ASCII_code, pool_size); -undump_things(str_pool[0], pool_ptr); -@z - -@x [50.1311] l.23850 - Make dumping/undumping more efficient. -repeat for k:=p to q+1 do dump_wd(mem[k]); -@y -repeat dump_things(mem[p], q+2-p); -@z - -@x [50.1311] l.23855 - Make dumping/undumping more efficient. -for k:=p to lo_mem_max do dump_wd(mem[k]); -@y -dump_things(mem[p], lo_mem_max+1-p); -@z - -@x [50.1311] l.23858 - Make dumping/undumping more efficient. -for k:=hi_mem_min to mem_end do dump_wd(mem[k]); -@y -dump_things(mem[hi_mem_min], mem_end+1-hi_mem_min); -@z - -@x [50.1312] l.23873 - Make dumping/undumping more efficient. -repeat for k:=p to q+1 do undump_wd(mem[k]); -@y -repeat undump_things(mem[p], q+2-p); -@z - -@x [50.1312] l.23878 - Make dumping/undumping more efficient. -for k:=p to lo_mem_max do undump_wd(mem[k]); -@y -undump_things(mem[p], lo_mem_max+1-p); -@z - -@x [50.1312] l.23888 - Make dumping/undumping more efficient. -for k:=hi_mem_min to mem_end do undump_wd(mem[k]); -@y -undump_things (mem[hi_mem_min], mem_end+1-hi_mem_min); -@z - -%%%%%%%% dynamic hyph_size -@x 24058 m.1324 -dump_int(hyph_count); -for k:=0 to hyph_size do if hyph_word[k]<>0 then - begin dump_int(k); dump_int(hyph_word[k]); dump_int(hyph_list[k]); - end; -@y 24061 -dump_int(hyph_count); -if hyph_next <= hyph_prime then hyph_next:=hyph_size; -dump_int(hyph_next);{minumum value of |hyphen_size| needed} -for k:=0 to hyph_size do if hyph_word[k]<>0 then - begin dump_int(k+65536*hyph_link[k]); - {assumes number of hyphen exceptions does not exceed 65535} - dump_int(hyph_word[k]); dump_int(hyph_list[k]); - end; -@z - -@x [50.1324] l.24066 - Make dumping/undumping more efficient - trie -for k:=0 to trie_max do dump_hh(trie[k]); -dump_int(max_hyph_char); -dump_int(trie_op_ptr); -for k:=1 to trie_op_ptr do - begin dump_int(hyf_distance[k]); - dump_int(hyf_num[k]); - dump_int(hyf_next[k]); - end; -@y -dump_things(trie[0],trie_max+1); -dump_int(max_hyph_char); -dump_int(trie_op_ptr); -dump_things(hyf_distance[1], trie_op_ptr); -dump_things(hyf_num[1], trie_op_ptr); -dump_things(hyf_next[1], trie_op_ptr); -@z - -@x [50.1325] l.24086 - Make dumping/undumping more efficient - trie -@<Undump the hyphenation tables@>= -@y -{This is only used for the hyphenation tries below, and the size is - always |j+1|.} -@d xmalloc_and_undump(#) == - if not # then #:=xmalloc_array(two_halves, j+1); - undump_things(#[0], j+1); - -@<Undump the hyphenation tables@>= -@z - -%%%%%%%% dynamic hyph_size -@x 24087 m.1325 -undump(0)(hyph_size)(hyph_count); -for k:=1 to hyph_count do - begin undump(0)(hyph_size)(j); - undump(0)(str_ptr)(hyph_word[j]); - undump(min_halfword)(max_halfword)(hyph_list[j]); - end; -@y 24092 -undump_size(0)(hyph_size)('hyph_size')(hyph_count); -undump_size(hyph_prime)(hyph_size)('hyph_size')(hyph_next); -j:=0; -for k:=1 to hyph_count do - begin undump_int(j); if j<0 then goto bad_fmt; - if j>65535 then - begin hyph_next:= j div 65536; j:=j - hyph_next * 65536; end - else hyph_next:=0; - if (j>=hyph_size)or(hyph_next>hyph_size) then goto bad_fmt; - hyph_link[j]:=hyph_next; - undump(0)(str_ptr)(hyph_word[j]); - undump(min_halfword)(max_halfword)(hyph_list[j]); - end; - {|j| is now the largest occupied location in |hyph_word|} - incr(j); - if j<hyph_prime then j:=hyph_prime; - hyph_next:=j; - if hyph_next >= hyph_size then hyph_next:=hyph_prime else - if hyph_next >= hyph_prime then incr(hyph_next); -@z - - -@x [50.1325] l.24094 - Make dumping/undumping more efficient - trie -for k:=0 to j do undump_hh(trie[k]); -undump_int(max_hyph_char); -undump_size(0)(trie_op_size)('trie op size')(j); @+init trie_op_ptr:=j;@+tini -for k:=1 to j do - begin undump(0)(63)(hyf_distance[k]); {a |small_number|} - undump(0)(63)(hyf_num[k]); - undump(min_quarterword)(max_quarterword)(hyf_next[k]); - end; -@y -{The first array has not been allocated yet unless we're \.{INITEX}; - we do that precisely so we don't allocate more space than necessary.} -xmalloc_and_undump(trie); -undump_int(max_hyph_char); -undump_size(0)(trie_op_size)('trie op size')(j); @+init trie_op_ptr:=j;@+tini -{I'm not sure we have such a strict limitation (64) on these values, so - let's leave them unchecked.} -undump_things(hyf_distance[1], j); -undump_things(hyf_num[1], j); -undump_upper_check_things(max_quarterword, hyf_next[1], j); -@z - -@x [50.1327] l.24117 - Allow command line to override dumped value. -undump(batch_mode)(error_stop_mode)(interaction); -@y -undump(batch_mode)(error_stop_mode)(interaction); -if interaction_option<>unspecified_mode then interaction:=interaction_option; -@z - -@x [50.1327] l.24172 - Test for end-of-file already done by undump. -if (x<>69069)or eof(fmt_file) then goto bad_fmt -@y -if x<>69069 then goto bad_fmt -@z - -@x [51.1332] l.24203 - make the main program a procedure, for eqtb hack. -@p begin @!{|start_here|} -@y -@d const_chk(#)==begin if # < inf@&# then # := inf@&# else - if # > sup@&# then # := sup@&# end - -{|setup_bound_var| stuff duplicated in \.{mf.ch}.} -@d setup_bound_var(#)==bound_default:=#; setup_bound_var_end -@d setup_bound_var_end(#)==bound_name:=#; setup_bound_var_end_end -@d setup_bound_var_end_end(#)== - setup_bound_variable(addressof(#), bound_name, bound_default); - -@p procedure main_body; -begin @!{|start_here|} - -{Always start the file recorder?} - {|recorder_enabled:=true;|} - -{Bounds that may be set from the configuration file. We want the user to - be able to specify the names with underscores, but \.{TANGLE} removes - underscores, so we're stuck giving the names twice, once as a string, - once as the identifier. How ugly.} - setup_bound_var (1000000)('main_memory')(main_memory); - {|memory_word|s for |mem| in \.{INITEX}} - setup_bound_var (0)('extra_mem_top')(extra_mem_top); - {increase high mem in \.{VIRTEX}} - setup_bound_var (0)('extra_mem_bot')(extra_mem_bot); - {increase low mem in \.{VIRTEX}} - setup_bound_var (300000)('pool_size')(pool_size); - setup_bound_var (200000)('string_vacancies')(string_vacancies); - setup_bound_var (5000)('pool_free')(pool_free); {min pool avail after fmt} - setup_bound_var (100000)('max_strings')(max_strings); - setup_bound_var (100)('strings_free')(strings_free); - setup_bound_var (20000)('trie_size')(trie_size); - {if |ssup_trie_size| increases, recompile} - setup_bound_var (659)('hyph_size')(hyph_size); - setup_bound_var (20000)('buf_size')(buf_size); - setup_bound_var (50)('nest_size')(nest_size); - setup_bound_var (15)('max_in_open')(max_in_open); - setup_bound_var (60)('param_size')(param_size); - setup_bound_var (4000)('save_size')(save_size); - setup_bound_var (300)('stack_size')(stack_size); - setup_bound_var (16384)('dvi_buf_size')(dvi_buf_size); - setup_bound_var (79)('error_line')(error_line); - setup_bound_var (50)('half_error_line')(half_error_line); - setup_bound_var (79)('max_print_line')(max_print_line); - const_chk (main_memory); -@+init - if ini_version then begin - extra_mem_top := 0; - end; -@+tini - extra_mem_bot := 0; - if extra_mem_top>sup_main_memory then extra_mem_top:=sup_main_memory; - {|mem_top| is an index, |main_memory| a size} - mem_top := mem_bot + main_memory -1; - mem_min := mem_bot; - mem_max := mem_top; - - {Check other constants against their sup and inf.} - const_chk (trie_size); - const_chk (hyph_size); - const_chk (buf_size); - const_chk (nest_size); - const_chk (max_in_open); - const_chk (param_size); - const_chk (save_size); - const_chk (stack_size); - const_chk (dvi_buf_size); - const_chk (pool_size); - const_chk (string_vacancies); - const_chk (pool_free); - const_chk (max_strings); - const_chk (strings_free); - if error_line > ssup_error_line then error_line := ssup_error_line; - - {array memory allocation} - buffer:=xmalloc_array (ASCII_code, buf_size); - nest:=xmalloc_array (list_state_record, nest_size); - save_stack:=xmalloc_array (memory_word, save_size); - input_stack:=xmalloc_array (in_state_record, stack_size); - input_file:=xmalloc_array (alpha_file, max_in_open); - input_file_mode:=xmalloc_array (halfword, max_in_open); - input_file_translation:=xmalloc_array (halfword, max_in_open); - line_stack:=xmalloc_array (integer, max_in_open); - param_stack:=xmalloc_array (halfword, param_size); - dvi_buf:=xmalloc_array (real_eight_bits, dvi_buf_size); - hyph_word:=xmalloc_array (str_number, hyph_size); - hyph_list:=xmalloc_array (halfword, hyph_size); - hyph_link:=xmalloc_array (hyph_pointer, hyph_size); -@+init -if ini_version then begin - yzmem:=xmalloc_array (memory_word, mem_top - mem_bot + 1); - zmem := yzmem - mem_bot; {Some compilers require |mem_bot=0|} - - str_start_ar:=xmalloc_array (pool_pointer, max_strings-biggest_char); - str_pool:=xmalloc_array (packed_ASCII_code, pool_size); -end; -@+tini -@z - -@x [51.1332] l.24215 - INI = VIR, so pool init needs runtime test -@!init if not get_strings_started then goto final_end; -init_prim; {call |primitive| for each primitive} -init_str_ptr:=str_ptr; init_pool_ptr:=pool_ptr; fix_date_and_time; -tini@/ -@y -@+init if ini_version then - begin if not get_strings_started then goto final_end; - init_prim; {call |primitive| for each primitive} - init_str_ptr:=str_ptr; init_pool_ptr:=pool_ptr; fix_date_and_time; - end; -@+tini@/ -@z - -@x [51.1332] l.24225 - main -end_of_TEX: close_files_and_terminate; -final_end: ready_already:=0; -end. -@y -close_files_and_terminate; -final_end: do_final_end; -end {|main_body|}; -@z - -@x -begin @<Finish the extensions@>; new_line_char:=-1; -@y -begin @<Finish the extensions@>; set_new_eqtb_int(int_base+new_line_char_code,-1); -@z - -@x [51.1333] l.24254 - Print new line before termination; switch to editor if necessary. - slow_print(log_name); print_char("."); - end; - end; -@y - print_file_name(0, log_name, 0); print_char("."); - end; - end; -print_ln; -if (edit_name_start<>0) and (interaction>batch_mode) then - call_edit(str_pool,edit_name_start,edit_name_length,edit_line); -@z - -@x [51.1334] l. - Remove reference to fontmemsize - wlog_ln(', out of ',font_mem_size:1,' for ',font_max-font_base:1);@/ -@y -@z - -@x -begin c:=cur_chr; if c<>1 then new_line_char:=-1; -@y -begin c:=cur_chr; if c<>1 then set_new_eqtb_int(int_base+new_line_char_code,-1); -@z - -@x [51.1335] l.24335 - Only do dump if ini. - begin @!init for c:=top_mark_code to split_bot_mark_code do - if cur_mark[c]<>null then delete_token_ref(cur_mark[c]); - if sa_mark<>null then - if do_marks(destroy_marks,0,sa_mark) then sa_mark:=null; - for c:=last_box_code to vsplit_code do flush_node_list(disc_ptr[c]); - if last_glue<>max_halfword then delete_glue_ref(last_glue); - store_fmt_file; return;@+tini@/ -@y - begin @!init if ini_version then - begin for c:=top_mark_code to split_bot_mark_code do - if cur_mark[c]<>null then delete_token_ref(cur_mark[c]); - if sa_mark<>null then - if do_marks(destroy_marks,0,sa_mark) then sa_mark:=null; - for c:=last_box_code to vsplit_code do flush_node_list(disc_ptr[c]); - store_fmt_file; return; - end;@+tini@/ -@z - -@x [51.1337] l.24361 - Handle %&format in all cases. -if (format_ident=0)or(buffer[loc]="&") then -@y -if (format_ident=0)or(buffer[loc]="&")or dump_line then -@z - -@x [51.1337] l.24371 - Allocate hyphenation tries. -fix_date_and_time;@/ -@y -fix_date_and_time;@/ - -@!init -if trie_not_ready then begin {initex without format loaded} - trie:=xmalloc_array (two_halves, trie_size); - - trie_c:=xmalloc_array (ASCII_code, trie_size); - trie_o:=xmalloc_array (quarterword, trie_size); - trie_l:=xmalloc_array (trie_pointer, trie_size); - trie_r:=xmalloc_array (trie_pointer, trie_size); - trie_hash:=xmalloc_array (trie_pointer, trie_size); - trie_taken:=xmalloc_array (boolean, trie_size); - trie_min:=xmalloc_array (trie_pointer, too_big_char); - - trie_root:=0; trie_c[0]:=si(0); trie_ptr:=0; - end; - tini@/ - -@z - -% [52.1338] Core-dump in debugging mode on 0 input. Under Unix, it's -% not possible to portably switch into the debugger while a program is -% running. The best approximation is to do a core dump, then run the -% debugger on it later. -@x [52.1338] l.24411 - Core-dump in debugging mode on 0 input. - begin goto breakpoint;@/ {go to every declared label at least once} - breakpoint: m:=0; @{'BREAKPOINT'@}@/ - end -@y - dump_core {do something to cause a core dump} -@z - -% The GNU C compiler complains of unused variables. -@x -procedure do_extension; -var i,@!j,@!k:integer; {all-purpose integers} -@!p,@!q,@!r:pointer; {all-purpose pointers} -@y -procedure do_extension; -var @!k:integer; {all-purpose integers} -@!p:pointer; {all-purpose pointers} -@z - -% [53.1350] (new_write_whatsit) Allow 18 as a \write stream. We never -% refer to an actual file, though, so we don't need to change the -% write_file or write_open arrays. We provide for disabling this at -% runtime, for paranoids. -@x [53.1350] l.24609 - system: Allow 18 as a \write stream. - else if cur_val>15 then cur_val:=16; -@y - else if (cur_val>15) and (cur_val <> 18) then cur_val:=16; -@z - -@x [53.1370] l.24770 - system: (write_out) \write18{foo} => system(foo). -begin @<Expand macros in the token list -@y -@!d:integer; {number of characters in incomplete current string} -@!clobbered:boolean; {system string is ok?} -@!runsystem_ret:integer; {return value from |runsystem|} -begin @<Expand macros in the token list -@z - -@x [53.1370] l.24773 - system: (write_out) \write18{foo} => system(foo). -if write_open[j] then selector:=j -@y -if j=18 then selector := new_string -else if write_open[j] then selector:=j -@z - -% Then call system(3) on that string. -@x [53.1370] l.24779 - system: (write_out) \write18{foo} => system(foo). -flush_list(def_ref); selector:=old_setting; -@y -flush_list(def_ref); -if j=18 then - begin if (tracing_online<=0) then - selector:=log_only {Show what we're doing in the log file.} - else selector:=term_and_log; {Show what we're doing.} - {If the log file isn't open yet, we can only send output to the terminal. - Calling |open_log_file| from here seems to result in bad data in the log.} - if not log_opened then selector:=term_only; - print_nl("runsystem("); - for d:=0 to cur_length-1 do - begin {|print| gives up if passed |str_ptr|, so do it by hand.} - print(so(str_pool[str_start(str_ptr)+d])); {N.B.: not |print_char|} - end; - print(")..."); - if shellenabledp then begin - str_room(1); append_char(0); {Append a null byte to the expansion.} - clobbered:=false; - for d:=0 to cur_length-1 do {Convert to external character set.} - begin - str_pool[str_start(str_ptr)+d]:=xchr[str_pool[str_start(str_ptr)+d]]; - if (str_pool[str_start(str_ptr)+d]=null_code) - and (d<cur_length-1) then clobbered:=true; - {minimal checking: NUL not allowed in argument string of |system|()} - end; - if clobbered then print("clobbered") - else begin {We have the command. See if we're allowed to execute it, - and report in the log. We don't check the actual exit status of - the command, or do anything with the output.} - for d:=0 to cur_length-1 do {Convert to external character set.} - begin - outside_string_array[d]:=xchr[str_pool[str_start(str_ptr)+d]]; - end; - outside_string_array[cur_length]:=null_code; - runsystem_ret := runsystem(stringcast(outside_string_array)); - if runsystem_ret = -1 then print("quotation error in system command") - else if runsystem_ret = 0 then print("disabled (restricted)") - else if runsystem_ret = 1 then print("executed") - else if runsystem_ret = 2 then print("executed safely (allowed)") - end; - end else begin - print("disabled"); {|shellenabledp| false} - end; - print_char("."); print_nl(""); print_ln; - pool_ptr:=str_start(str_ptr); {erase the string} -end; -selector:=old_setting; -@z - -@x [53.1373] Need new local. -procedure out_what(@!p:pointer); -var j:small_number; {write stream number} -@y -procedure out_what(@!p:pointer); -var j:small_number; {write stream number} - @!old_setting:0..max_selector; -@z - -@x [53.1374] - else begin if write_open[j] then a_close(write_file[j]); - if subtype(p)=close_node then write_open[j]:=false -@y - else begin if write_open[j] then begin a_close(write_file[j]); - write_open[j]:=false; end; - if subtype(p)=close_node then do_nothing {already closed} -@z - -@x [still 53.1374] Disallow certain \openout filenames, and log results. - while not a_open_out(write_file[j]) do - prompt_file_name("output file name",".tex"); - write_open[j]:=true; -@y - while not kpse_out_name_ok(name_of_file+1) - or not a_open_out(write_file[j]) do - prompt_file_name("output file name",".tex"); - write_open[j]:=true; - {If on first line of input, log file is not ready yet, so don't log.} - if log_opened and texmf_yesno('log_openout') then begin - old_setting:=selector; - if (tracing_online<=0) then - selector:=log_only {Show what we're doing in the log file.} - else selector:=term_and_log; {Show what we're doing.} - print_nl("\openout"); - print_int(j); - print(" = `"); - print_file_name(cur_name,cur_area,cur_ext); - print("'."); print_nl(""); print_ln; - selector:=old_setting; - end; -@z - -@x [54.1376] l.24903 - Add editor-switch variables to globals. -@* \[54] System-dependent changes. -@y -@* \[54/web2c] System-dependent changes for Web2c. -Here are extra variables for Web2c. (This numbering of the -system-dependent section allows easy integration of Web2c and e-\TeX, etc.) -@^<system dependencies@> - -@<Glob...@>= -@!edit_name_start: pool_pointer; {where the filename to switch to starts} -@!edit_name_length,@!edit_line: integer; {what line to start editing at} -@!ipc_on: cinttype; {level of IPC action, 0 for none [default]} -@!stop_at_space: boolean; {whether |more_name| returns false for space} - -@ The |edit_name_start| will be set to point into |str_pool| somewhere after -its beginning if \TeX\ is supposed to switch to an editor on exit. - -@<Set init...@>= -edit_name_start:=0; -stop_at_space:=true; - -@ These are used when we regenerate the representation of the first 256 -strings. - -@<Global...@> = -@!save_str_ptr: str_number; -@!save_pool_ptr: pool_pointer; -@!shellenabledp: cinttype; -@!restrictedshell: cinttype; -@!output_comment: ^char; -@!k,l: 0..65535; {used by `Make the first 256 strings', etc.} - -@ When debugging a macro package, it can be useful to see the exact -control sequence names in the format file. For example, if ten new -csnames appear, it's nice to know what they are, to help pinpoint where -they came from. (This isn't a truly ``basic'' printing procedure, but -that's a convenient module in which to put it.) - -@<Basic printing procedures@> = -procedure print_csnames (hstart:integer; hfinish:integer); -var c,h:integer; -begin - write_ln(stderr, 'fmtdebug:csnames from ', hstart, ' to ', hfinish, ':'); - for h := hstart to hfinish do begin - if newtext(h) > 0 then begin {if have anything at this position} - for c := str_start(newtext(h)) to str_start(newtext(h) + 1) - 1 - do begin - put_byte(str_pool[c], stderr); {print the characters} - end; - write_ln(stderr, '|'); - end; - end; -end; - -@ Are we printing extra info as we read the format file? - -@<Glob...@> = -@!debug_format_file: boolean; - - -@ A helper for printing file:line:error style messages. Look for a -filename in |full_source_filename_stack|, and if we fail to find -one fall back on the non-file:line:error style. - -@<Basic print...@>= -procedure print_file_line; -var level: 0..max_in_open; -begin - level:=in_open; - while (level>0) and (full_source_filename_stack[level]=0) do - decr(level); - if level=0 then - print_nl("! ") - else begin - print_nl (""); print (full_source_filename_stack[level]); print (":"); - if level=in_open then print_int (line) - else print_int (line_stack[level+1]); - print (": "); - end; -end; - -@ To be able to determine whether \.{\\write18} is enabled from within -\TeX\ we also implement \.{\\eof18}. We sort of cheat by having an -additional route |scan_four_bit_int_or_18| which is the same as -|scan_four_bit_int| except it also accepts the value 18. - -@<Declare procedures that scan restricted classes of integers@>= -procedure scan_four_bit_int_or_18; -begin scan_int; -if (cur_val<0)or((cur_val>15)and(cur_val<>18)) then - begin print_err("Bad number"); -@.Bad number@> - help2("Since I expected to read a number between 0 and 15,")@/ - ("I changed this one to zero."); int_error(cur_val); cur_val:=0; - end; -end; - -@* \[54/web2c-string] The string recycling routines. -\TeX{} uses 2 upto 4 {\it new\/} strings when scanning a filename in an -\.{\\input}, \.{\\openin}, or \.{\\openout} operation. These strings are -normally lost because the reference to them are not saved after finishing -the operation. |search_string| searches through the string pool for the -given string and returns either 0 or the found string number. - -@<Declare additional routines for string recycling@>= -function search_string(@!search:str_number):str_number; -label found; -var result: str_number; -@!s: str_number; {running index} -@!len: integer; {length of searched string} -begin result:=0; len:=length(search); -if len=0 then {trivial case} - begin result:=""; goto found; - end -else begin s:=search-1; {start search with newest string below |s|; |search>1|!} - while s>65535 do {first 65536 strings depend on implementation!!} - begin if length(s)=len then - if str_eq_str(s,search) then - begin result:=s; goto found; - end; - decr(s); - end; - end; -found:search_string:=result; -end; - -@ The following routine is a variant of |make_string|. It searches -the whole string pool for a string equal to the string currently built -and returns a found string. Otherwise a new string is created and -returned. Be cautious, you can not apply |flush_string| to a replaced -string! - -@<Declare additional routines for string recycling@>= -function slow_make_string : str_number; -label exit; -var s: str_number; {result of |search_string|} -@!t: str_number; {new string} -begin t:=make_string; s:=search_string(t); -if s>0 then - begin flush_string; slow_make_string:=s; return; - end; -slow_make_string:=t; -exit:end; - -@ This function used to be in pdftex, but is useful in aleph too. - -@p function get_nullstr: str_number; -begin - get_nullstr := ""; -end; - -@* \[54] System-dependent changes. -@z |