diff options
Diffstat (limited to 'systems/unix/tex-fpc/mp')
-rw-r--r-- | systems/unix/tex-fpc/mp/dvitomp.ch | 208 | ||||
-rw-r--r-- | systems/unix/tex-fpc/mp/fig.mp | 11 | ||||
-rw-r--r-- | systems/unix/tex-fpc/mp/fig.tex | 3 | ||||
-rwxr-xr-x | systems/unix/tex-fpc/mp/mk_MP_dir | 2 | ||||
-rw-r--r-- | systems/unix/tex-fpc/mp/mp.ch | 734 | ||||
-rwxr-xr-x | systems/unix/tex-fpc/mp/mpx | 10 | ||||
-rw-r--r-- | systems/unix/tex-fpc/mp/readme | 204 |
7 files changed, 1172 insertions, 0 deletions
diff --git a/systems/unix/tex-fpc/mp/dvitomp.ch b/systems/unix/tex-fpc/mp/dvitomp.ch new file mode 100644 index 0000000000..5f4d7d6bd0 --- /dev/null +++ b/systems/unix/tex-fpc/mp/dvitomp.ch @@ -0,0 +1,208 @@ +% This is a change file of DVItoMP-FPC, Wolfgang Helbig, Aug. 2008 +To be used with the GNU Pascal Compiler Version 2.1 + +[0] About DVItoMP-FPC +@x +\pageno=\contentspagenumber \advance\pageno by 1 +@y +\pageno=\contentspagenumber \advance\pageno by 1 +\input webmac-gpc + +% \let\maybe=\iffalse % uncomment to print changed modules only. + +\def\name{\tt DVItoMP} + +\N0\*. About \namegpc.\fi + +This is an adaption of John Hobby's \name, version 0.64, to Unix +and GNU~Pascal, version 2.1. + +This program expects the input file (\.{.dvi}) and the output file, +(\.{mpx}) which is a text file, on the command line. To support shell +scripting, \namegpc\ sets the exit code to one when something was +wrong with the input file. + +\hint + +Comments and questions are welcome! + +\bigskip +\address +@z +[1] Change the banner line +@x +@d banner=='% Written by DVItoMP, Version 0.64' +@y +@d banner=='% Written by DVItoMP-FPC, 2nd ed.' +@z + +[3] only stdio files in program header. +@x +@p program DVI_to_MP(@!dvi_file,@!mpx_file,@!output); +@y +@p +@{@&$I-@} {no I/O checking} +program DVI_to_MP(input, output); +@z + +[9] check command line arguments +@x +history:=spotless; +@y +history:=spotless; +if param_count <> 2 then + begin write_ln('Usage: dvitomp dvi_file mpx_file'); halt(1); + end; +@z + +[12] Pascal's type of text_files is text +@x +@!text_file=packed file of text_char; +@y +@!text_file=text; +@z + +[14] get file name from command line +@x +begin rewrite(mpx_file); +@y +begin +rewrite(mpx_file, param_str(2)); +@z + +[17] use FPC extension for packing subranges. +@x +@!eight_bits=0..255; {unsigned one-byte quantity} +@y +@!eight_bits=packed 0..255; {unsigned one-byte quantity} +@z + +[22] declare out_file +@x +@!tfm_file:byte_file; {a font metric file} +@y +@!tfm_file:byte_file; {a font metric file} +@!out_file:text; {the outfile} +@z + +[19] open file whose name is not known at compile time +@x +has acted, these routines assume that no file named |s| is accessible. +@y +has acted, these routines assume that no file named |s| is accessible. +@d io_ok==io_result=0 +@d clear_io_result==@+if io_result=0 then +@z + +@x +begin reset(dvi_file); +@y +begin reset(dvi_file, param_str(1)); +@z + +@x +begin reset(tfm_file,cur_name); +@y +begin reset(tfm_file,trim(cur_name)); {ignore leading and trailing blanks} +@z + +@x +begin reset(vf_file,cur_name); +open_vf_file:=(not eof(vf_file)); +@y +begin clear_io_result; reset(vf_file,trim(cur_name)); + open_vf_file:=io_ok; +@z + + [28] no random access + @x; + begin set_pos(dvi_file,-1); dvi_length:=cur_pos(dvi_file); + end; + @# + procedure move_to_byte(n:integer); + begin set_pos(dvi_file,n); cur_loc:=n; + end; + @y; + begin do_nothing; + end; + @# + procedure move_to_byte(n:integer); + begin do_nothing; + end; + @z + +[47] + @x + is always at least one blank space in |buffer|. + @^system dependencies@> + + @p procedure input_ln; {inputs a line from the terminal} + var k:0..terminal_line_length; + begin update_terminal; reset(term_in); + if eoln(term_in) then read_ln(term_in); + k:=0; + while (k<terminal_line_length)and not eoln(term_in) do + begin buffer[k]:=xord[term_in^]; incr(k); get(term_in); + end; + buffer[k]:=" "; + end; + @y + is always at least one blank space in |buffer|. + This is changed here: |term_in| is standard input and is not supposed + to be opened. There is never an end-of-line marker at the beginning of + a line but always at the end of a line. + @^system dependencies@> + + @p procedure input_ln; {inputs a line from the terminal} + var k:0..terminal_line_length; + begin update_terminal; + k:=0; + while (k<terminal_line_length)and not eoln(term_in) do + begin buffer[k]:=xord[term_in^]; incr(k); get(term_in); + end; + read_ln(term_in); + buffer[k]:=" "; + end; + @z + + [50] don't rewrite output file, write the banner while initializing + @x + begin rewrite(term_out); {prepare the terminal for output} + write_ln(term_out,banner); + @y + begin + @z + +[61] +@x +@d default_directory_name=='TeXfonts:' {change this to the correct name} +@y +@d default_directory_name=='TeXfonts/' {change this to the correct name} +@z + +[63] lowercase filename +@x + if (names[k]>="a")and(names[k]<="z") then + cur_name[l]:=xchr[names[k]-@'40] + else cur_name[l]:=xchr[names[k]]; + end; +cur_name[l+1]:='.'; cur_name[l+2]:='V'; cur_name[l+3]:='F' +@y + cur_name[l]:=xchr[names[k]] + end; +cur_name[l+1]:='.'; cur_name[l+2]:='v'; cur_name[l+3]:='f' +@z + +[64] lowercase filename +@x +cur_name[l+2]:='T'; cur_name[l+3]:='F'; cur_name[l+4]:='M' +@y +cur_name[l+2]:='t'; cur_name[l+3]:='f'; cur_name[l+4]:='m' +@z + +[107] set exit code +@x +final_end:end. +@y +final_end:halt(history) end. +@z diff --git a/systems/unix/tex-fpc/mp/fig.mp b/systems/unix/tex-fpc/mp/fig.mp new file mode 100644 index 0000000000..efce9512fa --- /dev/null +++ b/systems/unix/tex-fpc/mp/fig.mp @@ -0,0 +1,11 @@ +beginfig(1) +a=.7in; b=0.5in; +z0=(0,0); z1=(a,0); z2=(0,b); +z0=.5[z1,z3]=.5[z2,z4]; +draw z1..z2..z3..z4..cycle; +drawarrow z0..z1; +drawarrow z0..z2; +label.top(btex $a$ etex, .5[z0, z1]); +label.lft(btex $b$ etex, .5[z0, z2]); +endfig +end diff --git a/systems/unix/tex-fpc/mp/fig.tex b/systems/unix/tex-fpc/mp/fig.tex new file mode 100644 index 0000000000..0b22e32c2b --- /dev/null +++ b/systems/unix/tex-fpc/mp/fig.tex @@ -0,0 +1,3 @@ +\input epsf +\epsfbox{fig.1} +\bye diff --git a/systems/unix/tex-fpc/mp/mk_MP_dir b/systems/unix/tex-fpc/mp/mk_MP_dir new file mode 100755 index 0000000000..7e755a9d40 --- /dev/null +++ b/systems/unix/tex-fpc/mp/mk_MP_dir @@ -0,0 +1,2 @@ +ln -s ~/MPlib . +ln -s ~/MPinputs . diff --git a/systems/unix/tex-fpc/mp/mp.ch b/systems/unix/tex-fpc/mp/mp.ch new file mode 100644 index 0000000000..c4a73abf6e --- /dev/null +++ b/systems/unix/tex-fpc/mp/mp.ch @@ -0,0 +1,734 @@ +% This is a change file of METAPOST for FPC, Wolfgang Helbig, Nov. 2020 +% See tex.ch and mf.ch from tex-fpc +[0] to print changed sections only +@x +\def\gglob{20, 26} % this should be the next two sections of "<Global...>" +@y +\def\gglob{20, 26} % this should be the next two sections of "<Global...>" +\input webmac-fpc +\emergencystretch 0.5in % avoid overfull boxes + +\let\maybe=\iffalse % uncomment to print changed modules only. + +\def\name{\MP} + +\N0\*. \[0] About \namefpc. + +This is an adaption of John Hobby's \MP, version 0.641, +to the Free Pascal Compiler. It is to be built and runs in +any Unix environment. + +The features added include treating the command line as the first +input line and invoking a system editor, in this case \.{vi}, to +let the user correct the input file. On exit, \namefpc\ passes its +`history' to the operating system. + +\hint + +Comments and questions are welcome! + +\bigskip +\address +\fi +@z + +[2] Change the banner line +@x +@d banner=='This is MetaPost, Version 0.641' {printed when \MP\ starts} +@y +@d banner=='This is MetaPost-FPC' {printed when \MP\ starts} +@z + +[4] terminal output and input +@x +@d mtype==t@&y@&p@&e {this is a \.{WEB} coding trick:} +@y +@d term_in==i@&n@&p@&u@&t +@d term_out==o@&u@&t@&p@&u@&t +@d mtype==t@&y@&p@&e {this is a \.{WEB} coding trick:} +@z + +[4] terminal output and input +@x +program MP; {all file names are defined dynamically} +@y +program MP(@!term_in,@!term_out); +@z + +[4] forward reference for signal handler +@x +procedure initialize; {this procedure gets things started properly} +@y +procedure catch_signal(i: integer); interrupt@, forward;@t\2@> +procedure initialize; {this procedure gets things started properly} +@z + +Since @x, @y, and @z only define a change block when they begin a +line, you deactivate a block by indenting it (shift right) and +activate it by unindenting it (shift left). With vi set the +cursor to the @x line and enter >} or <} to (un)indent a paragraph. + +[7] shift left to turn debugging on, right to turn it off + @x + @d debug==@{ {change this to `$\\{debug}\equiv\null$' when debugging} + @d gubed==@t@>@} {change this to `$\\{gubed}\equiv\null$' when debugging} + @y + @d debug== {change this to `$\\{debug}\equiv\.{@@\{}$' when not debugging} + @d gubed== {change this to `$\\{gubed}\equiv\.{@@\}}$' when not debugging} + @z + +[7] shift left to turn on statistics, shift rigth to turn off statistics +@x +@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== {change this to `$\\{stat}\equiv\.{@@\{}$' to turn off statistics} +@d tats== {change this to `$\\{tats}\equiv\.{@@\}}$' to turn off statistics} +@z + +[8] shift left to build MP and right it to build INIMP. + @x inimp + @d init== {change this to `$\\{init}\equiv\.{@@\{}$' in the production version} + @d tini== {change this to `$\\{tini}\equiv\.{@@\}}$' in the production version} + @y + @d init==@{ + @d tini==@} + @z + +[9] compiler directives +@x +@{@&$C-,A+,D-@} {no range check, catch arithmetic overflow, no debug overhead} +@!debug @{@&$C+,D+@}@+ gubed {but turn everything on when debugging} +@y +@{$MODE@,ISO@} {turn on mode ISO} +@{$Q+@} {turn on overflow checking} +@{$R+@} {turn on range checking} +@!debug +@{@&$Q-@}@, +@{@&$R-@}@+ +gubed {turn off all checks when debugging} +@z + +[10] default case branch +@x +@d othercases == others: {default for cases not listed explicitly} +@y +@d othercases == @+ else {default for cases not listed explicitly} +@z + +[11] location of pool file +@x +@!pool_name='MPlib:MP.POOL '; + {string of length |file_name_size|; tells where the string pool appears} +@.MPlib@> +@!ps_tab_name='MPlib:PSFONTS.MAP '; + {string of length |file_name_size|; locates font name translation table} +@y +@!pool_name='MPlib/mp.pool'; + {string of length |file_name_size|; tells where the string pool appears} +@.MPlib@> +@!ps_tab_name='MPlib/psfonts.map'; +@z + + +[22] accept tab and formfeed +@x +for i:=0 to @'37 do xchr[i]:=' '; +@y +for i:=0 to @'37 do xchr[i]:=' '; +xchr[@'11] := chr(@'11); {accept horizontal tab} +xchr[@'14] := chr(@'14); {accept form feed} +@z + +[24] the type of text_files is text in ISO Pascal +@x +@!alpha_file=packed file of text_char; {files that contain textual data} +@y +@!alpha_file=t@&e@&x@&t; {coding trick is needed since |text| is a macro} +@z + +[26] dynamic io +@x +@d reset_OK(#)==erstat(#)=0 +@d rewrite_OK(#)==erstat(#)=0 +@y +@d fpc_io_result==i @& o @& r @& e @& s @& u @& l @& t +@d fpc_assign==a @& s @& s @& i @& g @& n +@d reset_OK(#)==fpc_io_result=0 +@d rewrite_OK(#)==fpc_io_result=0 +@d clear_io_result==@+if fpc_io_result=0 then do_nothing +@z + +[26] (reset and rewrite for each of three file types) alpha +@x +@p function a_open_in(var @!f:alpha_file):boolean; + {open a text file for input} +begin reset(f,name_of_file,'/O'); a_open_in:=reset_OK(f); +@y +@p +@{$I-@} {no i/o checking} +@# +function a_open_in(var @!f:alpha_file):boolean; + {open a text file for input} +begin clear_io_result; fpc_assign(f,name_of_file); reset(f); +a_open_in:=reset_OK(f); +@z + +[26] alpha rewrite +@x +begin rewrite(f,name_of_file,'/O'); a_open_out:=rewrite_OK(f); +@y +begin clear_io_result; fpc_assign(f,name_of_file); rewrite(f); +a_open_out:=rewrite_OK(f); +@z + +[26] byte reset +@x +begin reset(f,name_of_file,'/O'); b_open_in:=reset_OK(f); +@y +begin clear_io_result; fpc_assign(f,name_of_file); reset(f); +b_open_in:=reset_OK(f); +@z + +[26] byte rewrite +@x +begin rewrite(f,name_of_file,'/O'); b_open_out:=rewrite_OK(f); +@y +begin clear_io_result; fpc_assign(f,name_of_file); rewrite(f); +b_open_out:=reset_OK(f); +@z + +[26] word reset +@x +begin reset(f,name_of_file,'/O'); w_open_in:=reset_OK(f); +@y +begin clear_io_result; fpc_assign(f,name_of_file); reset(f); + w_open_in:=reset_OK(f); +@z + +[26] word rewrite +@x +begin rewrite(f,name_of_file,'/O'); w_open_out:=rewrite_OK(f); +end; +@y +begin clear_io_result; fpc_assign(f,name_of_file); rewrite(f); +w_open_out:=rewrite_OK(f); +end; +@# +@{@&$I+@} {turn on I/O checking} +@z + +[30] eoln handling +@x +begin if bypass_eoln then if not eof(f) then get(f); +@y +begin +@z + +[30] bypass eoln +@x + last:=last_nonblank; input_ln:=true; + end; +@y + last:=last_nonblank; input_ln:=true; + read_ln(f); + end; +@z + +[31] term_in and term_out are the standard pascal files +@x +@!term_in:alpha_file; {the terminal as an input file} +@!term_out:alpha_file; {the terminal as an output file} +@y +@z + +[32] no reset(input) and rewrite(output) +@x +@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 +@d t_open_in==do_nothing {open the terminal for text input} +@d t_open_out==do_nothing {open the terminal for text output} +@z + +[33] no flushing, clearing on standard i/o +@x +@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 +@d update_terminal == do_nothing {empty the terminal output buffer} +@d clear_terminal == do_nothing {clear the terminal input buffer} +@z + +[35] command line +@x +@d loc==cur_input.loc_field {location of first unread character in |buffer|} +@y +@d loc==cur_input.loc_field {location of first unread character in |buffer|} +@d fpc_string == s@& h@& o@& r@& t @& s @& t @& r @& i@& n @& g +@d fpc_length==l @& e @& n @& g @& t @& h +@d fpc_param_count==p @& a @& r @& a @& m @& c @& o @& u @& n @& t +@d fpc_param_str==p @& a @& r @& a @& m @&s @& t @& r + +@p procedure input_command_ln; {get the command line in |buffer|} +var argc: integer; {argument counter} + arg: fpc_string; {argument} + cc: integer; {character counter in argument} +begin last := first; argc := 1; +while argc <= fpc_param_count do + begin cc := 1; arg := fpc_param_str(argc); incr(argc); + while cc <= fpc_length(arg) do + begin + if last+1>=buf_size then + @<Report overflow of the input buffer, and abort@>; + buffer[last] := xord[arg[cc]]; incr(last); incr(cc) + end; + if (argc <= fpc_param_count) then begin + buffer[last] := " "; incr(last) {insert a space between arguments} + end + end +end; +@z + +[36] init terminal +@x +@p function init_terminal:boolean; {gets the terminal input started} +label exit; +begin t_open_in; +loop@+begin wake_up_terminal; write(term_out,'**'); update_terminal; +@.**@> + if not input_ln(term_in,true) then {this shouldn't happen} + begin write_ln(term_out); + write(term_out,'! End of file on the terminal... why?'); +@.End of file on the terminal@> + init_terminal:=false; return; + end; + loc:=first; + while (loc<last)and(buffer[loc]=" ") do incr(loc); + if loc<last then + begin init_terminal:=true; + return; {return unless the line was all blank} + end; + write_ln(term_out,'Please type the name of your input file.'); + end; +exit:end; +@y +@p function init_terminal:boolean; {gets the terminal input started} +label exit; +begin t_open_in; input_command_ln; +loc := first; +if loc<last then + begin init_terminal:=true; return; {first line is the command line} + end; +loop@+begin wake_up_terminal; write(term_out,'**'); update_terminal; +@.**@> + if not input_ln(term_in,true) then {this shouldn't happen} + begin write_ln(term_out); + write(term_out,'! End of file on the terminal... why?'); +@.End of file on the terminal@> + init_terminal:=false; return; + end; + loc:=first; + while (loc<last)and(buffer[loc]=" ") do incr(loc); + if loc<last then + begin init_terminal:=true; + return; {return unless the line was all blank} + end; + write_ln(term_out,'Please type the name of your input file.');@/ + end; +exit: end; +@z + +[76] print banner line on terminal +@x +@<Initialize the output...@>= +update_terminal; +@y +@<Initialize the output...@>= +wterm(banner); +if mem_ident=0 then wterm_ln(' (no mem preloaded)') +else begin print(mem_ident); print_ln; + end; +update_terminal; +@z + +[89] start editor +@x +@!use_err_help:boolean; {should the |err_help| string be shown?} +@y +@^Editor@> +@!use_err_help:boolean; {should the |err_help| list be shown?} +@!start_edit: boolean; {start \.{vi}?} +@z + +[90] initial values for start editor +@x +help_ptr:=0; use_err_help:=false; err_help:=0; +@y +help_ptr:=0; use_err_help:=false; err_help:=0; start_edit :=false; +@z + +[94] start editor +@x + begin print_nl("You want to edit file "); +@.You want to edit file x@> + print(input_stack[file_ptr].name_field); + print(" at line "); print_int(true_line);@/ + interaction:=scroll_mode; jump_out; + end; +@y +@^Editor@> + begin {start \.{vi}} + start_edit := true; + interaction:=scroll_mode; goto final_end; + end; +@z + + [106] interrupt is predefined and not implemented in GNU~Pascal + @x + @d check_interrupt==begin if interrupt<>0 then pause_for_instructions; + @y + @d interrupt==buginterrupt + @f interrupt==true + @d check_interrupt==begin if interrupt<>0 then pause_for_instructions; + @z + + [171] pack subranges + @x + @!quarterword = min_quarterword..max_quarterword; {1/4 of a word} + @!halfword=min_halfword..max_halfword; {1/2 of a word} + @y + @!quarterword = packed min_quarterword..max_quarterword; {1/4 of a word} + @!halfword=packed min_halfword..max_halfword; {1/2 of a word} + @z + +[212] time and date +@x +@p procedure fix_date_and_time; +begin internal[time]:=12*60*unity; {minutes since midnight} +internal[day]:=4*unity; {fourth day of the month} +internal[month]:=7*unity; {seventh month of the year} +internal[year]:=1776*unity; {Anno Domini} +end; +@y +The functions |now|, |decodedate|, and |decodetime| are provided +by the unit |sysutils|. The command line \.{fpc~-Fasysutils~tex.p} +links that unit. +@^system dependencies@> +@^FPC Pascal@> +When FPC is in ISO mode, it does not accept declaring a |unit| in the source +file. +@dfpc_now == now +@dfpc_decode_date == decodedate +@dfpc_decode_time == decodetime +@p procedure fix_date_and_time; +var yy,mm,dd: word; + hh,ss,ms: word; +begin +fpc_decode_date(fpc_now,yy,mm,dd); {current date} +internal[day] := dd*unity; +internal[month] := mm*unity; +internal[year] := yy*unity;@/ +fpc_decode_time(fpc_now,hh,mm,ss,ms); {current time} +internal[time] := (hh*60+mm)*unity; {minutes since midnight} +end; +@z + +[217] character class for tab and lf +@x +for k:=127 to 255 do char_class[k]:=invalid_class; +@y +for k:=127 to 255 do char_class[k]:=invalid_class; +char_class[@'11] := space_class; +char_class[@'14] := space_class; +@z + +[640] spurious empty line on terminal +@x + print_ln; first:=start; + prompt_input("*"); {input on-line into |buffer|} +@y + print_nl(""); + first:=start; {avoid empty lines on terminal and log file} + prompt_input("*"); {input on-line into |buffer|} +@z + +[746] Path separator in Unix +@x +@d MP_area=="MPinputs:" +@.MPinputs@> +@d MF_area=="MFinputs:" +@.MFinputs@> +@d MP_font_area=="TeXfonts:" +@.TeXfonts@> +@y +@d MP_area=="MPinputs/" +@.MPinputs@> +@d MF_area=="MFinputs/" +@.MFinputs@> +@d MP_font_area=="TeXfonts/" +@.TeXfonts@> +@z + +[748] Path separator in Unix +@x +else begin if (c=">")or(c=":") then +@y +else begin if c="/" then +@z + +[751] file name handling: pack file name +@x +@d append_to_name(#)==begin c:=#; incr(k); +@y +@d fpc_set_length==s@&e@&t@&l@&e@&n@&g@&t@&h +@d append_to_name(#)==begin c:=#; incr(k); +@z + +[751] pack file name +@x +@!j:pool_pointer; {index into |str_pool|} +@y +@!j:pool_pointer; {index into |str_pool|} +@!s: fpc_string; +@z + +[751] pack file name +@x +if k<=file_name_size then name_length:=k@+else name_length:=file_name_size; +for k:=name_length+1 to file_name_size do name_of_file[k]:=' '; +end; +@y +if k<=file_name_size then name_length:=k@+else name_length:=file_name_size; +s := name_of_file; +fpc_set_length(s, name_length); +name_of_file := s; +end; +@z + +[753] file name of plain.mem +@x +MP_mem_default:='MPlib:plain.mem'; +@y +MP_mem_default:='MPlib/plain.mem'; +@z + +[755] packed buffered name +@x +@!j:integer; {index into |buffer| or |MP_mem_default|} +@y +@^FPC Pascal@> +@!j:integer; {index into |buffer| or |TEX_format_default|} +s: fpc_string; +@z + +[755] packed buffered name continued +@x +for k:=name_length+1 to file_name_size do name_of_file[k]:=' '; +@y +s := name_of_file; fpc_set_length(s, name_length); name_of_file := s; +@z + + +[771] (don't) flush file name. Might be needed for vi +@x +flush_string(name); name:=cur_name; cur_name:=0 +@y +@z + + + +[1293] FPC-BUG eof one too early +@x +undump_int(x);@+if (x<>69073)or eof(mem_file) then goto off_base +@y +undump_int(x);@+if (x<>69073)then goto off_base +@z + +[1298] define FPC procedure halt +@x +@p begin @!{|start_here|} +@y +@d fpc_halt == h@&a@&l@&t + +@p begin @!{|start_here|} +@z + +[1298] load the mem file before printing the banner line +@x +start_of_MP: @<Initialize the output routines@>; +@y +start_of_MP: @<Preload the default mem file@>; +@<Initialize the output routines@>; +@z + +[1298] start editor and pass history +@x +final_end: ready_already:=0; +@y +final_end: +if start_edit then edit; {user typed `\.{E}'} +fpc_halt(history); + {pass |history| as the exit value to the system} +@z + +[1299] print last end-of-line marker if needed +@x +if log_opened then + begin wlog_cr; + a_close(log_file); selector:=selector-2; + if selector=term_only then + begin print_nl("Transcript written on "); +@.Transcript written...@> + print(log_name); print_char("."); + end; + end; +end; +@y +if log_opened then + begin if file_offset > 0 then wlog_cr; + a_close(log_file); selector:=selector-2; + if selector=term_only then + begin print_nl("Transcript written on "); +@.Transcript written...@> + print(log_name); print_char("."); + end; + end; + if term_offset > 0 then wterm_cr; +end; +@z + +[1307] return if eof +@x + read(term_in,m); +@y + if eof(term_in) then return; + {don't try to read past end of file} + read(term_in,m); +@z + +[1307] return if eof +@x + else begin read(term_in,n); +@y + else begin if eof(term_in) then return; + {don't try to read past end of file} + read(term_in,n); +@z + +[1308] return eof +@x +13: begin read(term_in,l); print_cmd_mod(n,l); +@y +13: begin if eof(term_in) then return; + {don't try to read past end of file} +read(term_in,l); print_cmd_mod(n,l); +@z + +[1309 and modules added for METAPOST-FPC] +@x +itself will get a new section number. +@^system dependencies@> +@y +itself will get a new section number. +@^system dependencies@> + +@ Try to preload the default mem file. This is called even before +the first line is read from the terminal, and thus turns \.{VIRMP} +into \.{MP}, at least as seen by the user. + +\indent\.{INIMP} sets |mem_ident| to `\.{INIMP}' and won't load a mem +file here. + +@<Preload the default mem file@> = +if mem_ident = 0 then + begin pack_buffered_name(mem_default_length - mem_ext_length, 1, 0); + if not w_open_in(mem_file) then + begin + wterm_ln('I can''t find the mem file'); + goto final_end + end; + if not load_mem_file then + begin w_close(mem_file); goto final_end + end; + w_close(mem_file); + end + +@ +@d fpc_execute == e@&x@&e@&c@&u@&t@&e @& p @& r @& o @& c @& e @& s @& s +@d fpc_int_to_str == i @& n @& t @& t @& o @& s @& t @& r +@d edit_file == input_stack[file_ptr].name_field + +@<Error hand...@>+= +procedure edit; +var i: integer; {index into |name_of_file|} + j: pool_pointer; {index into |str_pool|} + k: pool_pointer; {index into |str_pool|} + s: str_number; {index into |str_start|} + f, arg, vi, sl: fpc_string; {area to build the command line} +begin i := 1; s := edit_file;j := str_start[s]; k:= str_stop(s); +fpc_set_length(f, length(s)); +while j<k do + begin f[i] := xchr[str_pool[j]]; incr(i); incr(j) + end; +sl := fpc_int_to_str(true_line); +if 0 <> fpc_execute('/usr/bin/vi', '+' + fpc_int_to_str(true_line) + ' ' + f) +then + begin + write('I could not start editor with: ', '/usr/bin/vi +', sl , ' ', f); + print(edit_file); print_ln; + end +end; + +@ + +@d fpc_signal_handler == s@&i@&g@&n@&a@&l@&h@&a@&n@&d@&l@&e@&r +@d fpc_fp_signal == f@&p@&s@&i@&g@&n@&a@&l +@d fpc_fp_get_errno ==f@&p@&g@&e@&t@&e@&r@&r@&n@&o + +@<Set initial values ...@>+= + +fpc_fp_signal(SIGINT, fpc_signal_handler(catch_signal)); +if fpc_fp_get_errno <> 0 then + write_ln('Could not install signal handler:', fpc_fp_get_errno); + +@ +The signal handler has the so called modifier |interrupt|. +Modifiers are an extension of FPC Pascal. This one makes the compiler +generate code suitable for a signal handler, which must not +return to the caller but to the instruction where the program was +interrupted. + +@^FPC Pascal@> +@^dirty \PASCAL@> +@^system dependencies@> + +@<Error handling ...@>+= +procedure catch_signal; interrupt; +begin + interrupt := i; +end; +@z + @d fpc_t_signal_handler == t@&s@&i@&g@&n@&a@&l@&h@&a@&n@&d@&l@&e@&r + @d fpc_install_signal_handler == + i@&n@&s@&t@&a@&l@&l@&s@&i@&g@&n@&a@&l@&h@&a@&n@&d@&l@&e@&r + @d fpc_sig_int == s@&i@&g@&i@&n@&t + @d fpc_integer == integer {for later versions of FPC (3.4+) replace + \\{integer} by \\{cinteger}} + + @<Error hand...@>= + procedure set_interrupt(signal: fpc_integer); + begin interrupt := 1 @+end; + + @ + @<Set initial values ... @>= + fpc_install_signal_handler(gpc_sig_int,set_interrupt,true,true,dummy_handler, + dummy_boolean); + + @ Here are two variables that are needed to install |set_interrupt|. + @<Local variables for initialization@> = + dummy_handler: fpc_t_signal_handler; + dummy_boolean: boolean; + @z diff --git a/systems/unix/tex-fpc/mp/mpx b/systems/unix/tex-fpc/mp/mpx new file mode 100755 index 0000000000..d8a6ea4cf8 --- /dev/null +++ b/systems/unix/tex-fpc/mp/mpx @@ -0,0 +1,10 @@ +# process .mp files that include TeX programs. +case $# in +1) f=`basename $1 .mp`;; +*) echo Usage: $0 mp-file; exit 1;; +esac +mptotex $f.mp \ +| tex \ +&& dvitomp texput.dvi $f.mpx \ +&& mp $f.mp \ +|| echo $0 failed!; exit 1 diff --git a/systems/unix/tex-fpc/mp/readme b/systems/unix/tex-fpc/mp/readme new file mode 100644 index 0000000000..e0065cce28 --- /dev/null +++ b/systems/unix/tex-fpc/mp/readme @@ -0,0 +1,204 @@ +Aug. 2008 - Nov. 2020 +This is the stage directory to build and install John Hobby's +METAPOST for FPC. METAPOST produces pictures as PostScript files +that are to be included by dvips in its output. + +METAPOST's file formats and their documentation: +------------------------------------------------ +.mp METAPOST source, + see "A User's manual for MetaPost", AT&T Bell Laboratories + Computing Science Technical Report 162, 1992 +.mpx METAPOST source, auxiliary file, needed if a .mp file contains + TeX-programs. +.mem METAPOST format file (plain.mp) +.c C source (Kernighan/Ritchie The C Programming Language) +.ps Adobe PostScript +.n Where n an integer, a PostScript file for picture n, to be included + by dvips. + + +builtin file names: +------------------ +MPlib/mp.pool string pool for mp, (in inimp) +MPlib/plain.mem base file for Plain METAFONT, (in mf) + +METAPOST's processors: +---------------------- + inimp + plain.mp -------> MPlib/plain.mem + + + mptotex +.mp -------> .tex (the .tex file contains stuff to be included + in the figure, like labels) + + tex +.tex -------> .dvi (the dvi contains the output of the tex program.) + + dvitomp +.dvi --------> .mpx (mp will \read the .mpx-file) + + mp +.mp -------> .n + + mpx +.mp --------> .n (combines the last four steps) + +Use the shell script mpx instead of mp if and only if your .mp file +contains TeX programs, i. e. if you have a TeX-program, that includes +a figure, vis. an MP Program, that in turn contains TeX-programs. +The result is a PS document defined by a TeX-file that includes a +figure which in turn includes TeX-programs. + +The mpx file name is specified in the .mp file in a \read command. + +And finally: + dvips +.<n>, .dvi, .pk, .tfm ----> PostScript file/printer + + +Get John Hobby's distribution +----------------------------- +The sources from CTAN depend on web2c, +so I downloaded the originals from netlib: +ftp ftp://mirrorservice.org/sites/ftp.netlib.org/research/metapost.tar.Z + +Be sure to unpack it in a different empty directory, since it clobbers +the files all over the place. + +unpack it with uncompress and tar xf: + uncompress metapost.tar.Z + tar xf metapost.tar +Copy at least mp.web, plain.mp, mptotex.c and dvitomp.web into this +directory. + +Masterdirectories: +------------------ +Create the master directories MPlib and MPinputs. Prepare a directory from +where you want to run mp with the shell script mk_MP_dir. +(Additionally to mk_TeX_dir) + +Building and installing: +----------------------- +Move a.out into your binary directory under the name at the +right end of --->. + +1. mp.web, mp.ch ---> inimp +Change mp.ch for initialization (see building inimf, initex) and itgl. +Move mp.pool to MPlib. + +2. plain.mp ---> MPlib/plain.mem + inimp plain.mp dump +mv plain.mem to MPlib + +3. mp.web, mp.ch ---> mp +Change mp.ch for production (see building inimf, initex) and tgl. + +4. dvitomp.web, dvitomp.ch ---> dvitomp +Just tgl and move a.out as dvitomp to your binary directory + +5. mptotex.c ---> mptotex +apply patches to mptotex.c: +ed mptotex.c <mptotex.ed +cc mptotex.c, ignore the warning and move a.out to ... + +6. mpx ---> mpx (just move the shell script to your binary dir) + +Using MetaPost: +-------------- +To include a MetaPost picture xxx.mp in your output, \input +the TeX macro epsf.tex. At the place where you want to include your +picture, write + \epsfbox{xxx.n} +where xxx is the name of the picture and n is the argument given +in the beginfig() command. + +fig.mp: +beginfig(1) +a=.7in; b=0.5in; +z0=(0,0); z1=(a,0); z2=(0,b); +z0=.5[z1,z3]=.5[z2,z4]; +draw z1..z2..z3..z4..cycle; +drawarrow z0..z1; +drawarrow z0..z2; +label.top(btex $a$ etex, .5[z0, z1]); +label.lft(btex $b$ etex, .5[z0, z2]); +endfig +end + +fig.mp contains two TeX programs, $a$ and $b$. So you need to call mpx instead +of mp. This creates fig.mpx: + +% Written by DVItoMP-FPC, 2nd ed. +begingroup save _p,_r,_s,_n; picture _p; _p=nullpicture; +string _n[]; +vardef _s(expr _t,_f,_m,_x,_y)= + addto _p also _t infont _f scaled _m shifted (_x,_y); enddef; +_n0="cmmi10"; +_s("a",_n0,1.00000,0.0000,0.0000); +setbounds _p to (0,-0.0000)--(5.2661,-0.0000)-- + (5.2661,4.2895)--(0,4.2895)--cycle; +_p endgroup +mpxbreak +begingroup save _p,_r,_s,_n; picture _p; _p=nullpicture; +string _n[]; +vardef _s(expr _t,_f,_m,_x,_y)= + addto _p also _t infont _f scaled _m shifted (_x,_y); enddef; +_n0="cmmi10"; +_s("b",_n0,1.00000,0.0000,0.0000); +setbounds _p to (0,-0.0000)--(4.2756,-0.0000)-- + (4.2756,6.9185)--(0,6.9185)--cycle; +_p endgroup +mpxbreak + +From fig.mp and fig.mpx METAPOST creates fig.1: + +%!PS +%%BoundingBox: -51 -37 51 37 +%%Creator: MetaPost +%%CreationDate: 2020.10.29:1632 +%%Pages: 1 +%*Font: cmmi10 9.96265 9.96265 61:c +%%EndProlog +%%Page: 1 1 + 0 0.5 dtransform truncate idtransform setlinewidth pop [] 0 setdash + 1 setlinejoin 10 setmiterlimit +newpath 50.39978 0 moveto +50.39978 23.04858 25.56044 36 0 36 curveto +-25.56044 36 -50.39978 23.04858 -50.39978 0 curveto +-50.39978 -23.04858 -25.56044 -36 0 -36 curveto +25.56044 -36 50.39978 -23.04858 50.39978 0 curveto closepath stroke + 1 setlinecap +newpath 0 0 moveto +50.39978 0 lineto stroke +newpath 46.70451 -1.53067 moveto +50.39978 0 lineto +46.70451 1.53067 lineto + closepath +gsave fill grestore stroke + 0.5 0 dtransform exch truncate exch idtransform pop setlinewidth +newpath 0 0 moveto +0 36 lineto stroke + 0 0.5 dtransform truncate idtransform setlinewidth pop +newpath 1.5308 32.3044 moveto +0 36 lineto +-1.5308 32.3044 lineto + closepath +gsave fill grestore stroke +22.56683 3 moveto +(a) cmmi10 9.96265 fshow +-7.2756 14.54074 moveto +(b) cmmi10 9.96265 fshow +showpage +%%EOF + +Finally, the TeX file that includes a figure, fig.tex: + +\input epsf +\epsfbox{fig.1} +\bye + +Make fig.dvi with tex and fig.ps with dvips. Display the PS file on screen +with ghostscript by "gs fig.ps". Other than TeX and friends the C-programs +gs and mptotex don't guess the extension .ps or .mpx. gs just stops and +mptotex catches a segmentation fault :-) |