+++ /dev/null
-program TANGLE(webfile,changefile,Pascalfile,pool);label 9999;const{8:}
-bufsize=100;maxbytes=45000;maxtoks=50000;maxnames=4000;maxtexts=2000;
-hashsize=353;longestname=400;linelength=72;outbufsize=144;stacksize=50;
-maxidlength=12;unambiglength=7;{:8}type{11:}ASCIIcode=0..255;{:11}{12:}
-{:12}{37:}eightbits=0..255;
-sixteenbits=0..65535;{:37}{39:}namepointer=0..maxnames;{:39}{43:}
-textpointer=0..maxtexts;{:43}{78:}
-outputstate=record endfield:sixteenbits;bytefield:sixteenbits;
-namefield:namepointer;replfield:textpointer;modfield:0..12287;end;{:78}
-var{9:}history:0..3;{:9}{13:}xord:array[char]of ASCIIcode;
-xchr:array[ASCIIcode]of char;{:13}{20:}termout:text;{:20}{23:}
-webfile:text;changefile:text;{:23}{25:}Pascalfile:text;
-pool:text;{:25}{27:}buffer:array[0..bufsize]of ASCIIcode;{:27}{29:}
-phaseone:boolean;{:29}{38:}
-bytemem:packed array[0..1,0..maxbytes]of ASCIIcode;
-tokmem:packed array[0..2,0..maxtoks]of eightbits;
-bytestart:array[0..maxnames]of sixteenbits;
-tokstart:array[0..maxtexts]of sixteenbits;
-link:array[0..maxnames]of sixteenbits;
-ilk:array[0..maxnames]of sixteenbits;
-equiv:array[0..maxnames]of sixteenbits;
-textlink:array[0..maxtexts]of sixteenbits;{:38}{40:}nameptr:namepointer;
-stringptr:namepointer;byteptr:array[0..1]of 0..maxbytes;
-poolchecksum:integer;{:40}{44:}textptr:textpointer;
-tokptr:array[0..2]of 0..maxtoks;z:0..2;
-{maxtokptr:array[0..2]of 0..maxtoks;}{:44}{50:}idfirst:0..bufsize;
-idloc:0..bufsize;doublechars:0..bufsize;
-hash,chophash:array[0..hashsize]of sixteenbits;
-choppedid:array[0..unambiglength]of ASCIIcode;{:50}{65:}
-modtext:array[0..longestname]of ASCIIcode;{:65}{70:}
-lastunnamed:textpointer;{:70}{79:}curstate:outputstate;
-stack:array[1..stacksize]of outputstate;stackptr:0..stacksize;{:79}{80:}
-zo:0..2;{:80}{82:}bracelevel:eightbits;{:82}{86:}curval:integer;{:86}
-{94:}outbuf:array[0..outbufsize]of ASCIIcode;outptr:0..outbufsize;
-breakptr:0..outbufsize;semiptr:0..outbufsize;{:94}{95:}
-outstate:eightbits;outval,outapp:integer;outsign:ASCIIcode;
-lastsign:-1..+1;{:95}{100:}outcontrib:array[1..linelength]of ASCIIcode;
-{:100}{124:}ii:integer;line:integer;otherline:integer;templine:integer;
-limit:0..bufsize;loc:0..bufsize;inputhasended:boolean;changing:boolean;
-{:124}{126:}changebuffer:array[0..bufsize]of ASCIIcode;
-changelimit:0..bufsize;{:126}{143:}curmodule:namepointer;
-scanninghex:boolean;{:143}{156:}nextcontrol:eightbits;{:156}{164:}
-currepltext:textpointer;{:164}{171:}modulecount:0..12287;{:171}{179:}
-{troubleshooting:boolean;ddt:integer;dd:integer;debugcycle:integer;
-debugskipped:integer;termin:text;}{:179}{185:}{wo:0..1;}{:185}{30:}
-{procedure debughelp;forward;}{:30}{31:}procedure error;
-var j:0..outbufsize;k,l:0..bufsize;begin if phaseone then{32:}
-begin if changing then write(termout,'. (change file ')else write(
-termout,'. (');writeln(termout,'l.',line:1,')');
-if loc>=limit then l:=limit else l:=loc;
-for k:=1 to l do if buffer[k-1]=9 then write(termout,' ')else write(
-termout,xchr[buffer[k-1]]);writeln(termout);
-for k:=1 to l do write(termout,' ');
-for k:=l+1 to limit do write(termout,xchr[buffer[k-1]]);
-write(termout,' ');end{:32}else{33:}
-begin writeln(termout,'. (l.',line:1,')');
-for j:=1 to outptr do write(termout,xchr[outbuf[j-1]]);
-write(termout,'... ');end{:33};{break(termout);}history:=2;
-{debugskipped:=debugcycle;debughelp;}end;{:31}{34:}procedure jumpout;
-begin goto 9999;end;{:34}procedure initialize;var{16:}i:0..255;{:16}
-{41:}wi:0..1;{:41}{45:}zi:0..2;{:45}{51:}h:0..hashsize;{:51}begin{10:}
-history:=0;{:10}{14:}xchr[32]:=' ';xchr[33]:='!';xchr[34]:='"';
-xchr[35]:='#';xchr[36]:='$';xchr[37]:='%';xchr[38]:='&';xchr[39]:='''';
-xchr[40]:='(';xchr[41]:=')';xchr[42]:='*';xchr[43]:='+';xchr[44]:=',';
-xchr[45]:='-';xchr[46]:='.';xchr[47]:='/';xchr[48]:='0';xchr[49]:='1';
-xchr[50]:='2';xchr[51]:='3';xchr[52]:='4';xchr[53]:='5';xchr[54]:='6';
-xchr[55]:='7';xchr[56]:='8';xchr[57]:='9';xchr[58]:=':';xchr[59]:=';';
-xchr[60]:='<';xchr[61]:='=';xchr[62]:='>';xchr[63]:='?';xchr[64]:='@';
-xchr[65]:='A';xchr[66]:='B';xchr[67]:='C';xchr[68]:='D';xchr[69]:='E';
-xchr[70]:='F';xchr[71]:='G';xchr[72]:='H';xchr[73]:='I';xchr[74]:='J';
-xchr[75]:='K';xchr[76]:='L';xchr[77]:='M';xchr[78]:='N';xchr[79]:='O';
-xchr[80]:='P';xchr[81]:='Q';xchr[82]:='R';xchr[83]:='S';xchr[84]:='T';
-xchr[85]:='U';xchr[86]:='V';xchr[87]:='W';xchr[88]:='X';xchr[89]:='Y';
-xchr[90]:='Z';xchr[91]:='[';xchr[92]:='\';xchr[93]:=']';xchr[94]:='^';
-xchr[95]:='_';xchr[96]:='`';xchr[97]:='a';xchr[98]:='b';xchr[99]:='c';
-xchr[100]:='d';xchr[101]:='e';xchr[102]:='f';xchr[103]:='g';
-xchr[104]:='h';xchr[105]:='i';xchr[106]:='j';xchr[107]:='k';
-xchr[108]:='l';xchr[109]:='m';xchr[110]:='n';xchr[111]:='o';
-xchr[112]:='p';xchr[113]:='q';xchr[114]:='r';xchr[115]:='s';
-xchr[116]:='t';xchr[117]:='u';xchr[118]:='v';xchr[119]:='w';
-xchr[120]:='x';xchr[121]:='y';xchr[122]:='z';xchr[123]:='{';
-xchr[124]:='|';xchr[125]:='}';xchr[126]:='~';xchr[0]:=' ';
-xchr[127]:=' ';{:14}{17:}for i:=1 to 31 do xchr[i]:=' ';
-for i:=128 to 255 do xchr[i]:=' ';{:17}{18:}
-for i:=0 to 255 do xord[chr(i)]:=32;for i:=1 to 255 do xord[xchr[i]]:=i;
-xord[' ']:=32;{:18}{21:}rewrite(termout,'TTY:');{:21}{26:}
-rewrite(Pascalfile);rewrite(pool);{:26}{42:}
-for wi:=0 to 1 do begin bytestart[wi]:=0;byteptr[wi]:=0;end;
-bytestart[2]:=0;nameptr:=1;stringptr:=256;poolchecksum:=271828;{:42}
-{46:}for zi:=0 to 2 do begin tokstart[zi]:=0;tokptr[zi]:=0;end;
-tokstart[3]:=0;textptr:=1;z:=1 mod 3;{:46}{48:}ilk[0]:=0;equiv[0]:=0;
-{:48}{52:}for h:=0 to hashsize-1 do begin hash[h]:=0;chophash[h]:=0;end;
-{:52}{71:}lastunnamed:=0;textlink[0]:=0;{:71}{144:}scanninghex:=false;
-{:144}{152:}modtext[0]:=32;{:152}{180:}{troubleshooting:=true;
-debugcycle:=1;debugskipped:=0;troubleshooting:=false;debugcycle:=99999;
-reset(termin,'TTY:','/I');}{:180}end;{:2}{24:}procedure openinput;
-begin reset(webfile);reset(changefile);end;{:24}{28:}
-function inputln(var f:text):boolean;var finallimit:0..bufsize;
-begin limit:=0;finallimit:=0;
-if eof(f)then inputln:=false else begin while not eoln(f)do begin buffer
-[limit]:=xord[f^];get(f);limit:=limit+1;
-if buffer[limit-1]<>32 then finallimit:=limit;
-if limit=bufsize then begin while not eoln(f)do get(f);limit:=limit-1;
-if finallimit>limit then finallimit:=limit;begin writeln(termout);
-write(termout,'! Input line too long');end;loc:=0;error;end;end;
-readln(f);limit:=finallimit;inputln:=true;end;end;{:28}{49:}
-procedure printid(p:namepointer);var k:0..maxbytes;w:0..1;
-begin if p>=nameptr then write(termout,'IMPOSSIBLE')else begin w:=p mod
-2;
-for k:=bytestart[p]to bytestart[p+2]-1 do write(termout,xchr[bytemem[w,k
-]]);end;end;{:49}{53:}function idlookup(t:eightbits):namepointer;
-label 31,32;var c:eightbits;i:0..bufsize;h:0..hashsize;k:0..maxbytes;
-w:0..1;l:0..bufsize;p,q:namepointer;s:0..unambiglength;
-begin l:=idloc-idfirst;{54:}h:=buffer[idfirst];i:=idfirst+1;
-while i<idloc do begin h:=(h+h+buffer[i])mod hashsize;i:=i+1;end{:54};
-{55:}p:=hash[h];
-while p<>0 do begin if bytestart[p+2]-bytestart[p]=l then{56:}
-begin i:=idfirst;k:=bytestart[p];w:=p mod 2;
-while(i<idloc)and(buffer[i]=bytemem[w,k])do begin i:=i+1;k:=k+1;end;
-if i=idloc then goto 31;end{:56};p:=link[p];end;p:=nameptr;
-link[p]:=hash[h];hash[h]:=p;31:{:55};if(p=nameptr)or(t<>0)then{57:}
-begin if((p<>nameptr)and(t<>0)and(ilk[p]=0))or((p=nameptr)and(t=0)and(
-buffer[idfirst]<>34))then{58:}begin i:=idfirst;s:=0;h:=0;
-while(i<idloc)and(s<unambiglength)do begin if buffer[i]<>95 then begin
-if buffer[i]>=97 then choppedid[s]:=buffer[i]-32 else choppedid[s]:=
-buffer[i];h:=(h+h+choppedid[s])mod hashsize;s:=s+1;end;i:=i+1;end;
-choppedid[s]:=0;end{:58};if p<>nameptr then{59:}
-begin if ilk[p]=0 then begin if t=1 then begin writeln(termout);
-write(termout,'! This identifier has already appeared');error;end;{60:}
-q:=chophash[h];
-if q=p then chophash[h]:=equiv[p]else begin while equiv[q]<>p do q:=
-equiv[q];equiv[q]:=equiv[p];end{:60};end else begin writeln(termout);
-write(termout,'! This identifier was defined before');error;end;
-ilk[p]:=t;end{:59}else{61:}
-begin if(t=0)and(buffer[idfirst]<>34)then{62:}begin q:=chophash[h];
-while q<>0 do begin{63:}begin k:=bytestart[q];s:=0;w:=q mod 2;
-while(k<bytestart[q+2])and(s<unambiglength)do begin c:=bytemem[w,k];
-if c<>95 then begin if c>=97 then c:=c-32;
-if choppedid[s]<>c then goto 32;s:=s+1;end;k:=k+1;end;
-if(k=bytestart[q+2])and(choppedid[s]<>0)then goto 32;
-begin writeln(termout);write(termout,'! Identifier conflict with ');end;
-for k:=bytestart[q]to bytestart[q+2]-1 do write(termout,xchr[bytemem[w,k
-]]);error;q:=0;32:end{:63};q:=equiv[q];end;equiv[p]:=chophash[h];
-chophash[h]:=p;end{:62};w:=nameptr mod 2;k:=byteptr[w];
-if k+l>maxbytes then begin writeln(termout);
-write(termout,'! Sorry, ','byte memory',' capacity exceeded');error;
-history:=3;jumpout;end;
-if nameptr>maxnames-2 then begin writeln(termout);
-write(termout,'! Sorry, ','name',' capacity exceeded');error;history:=3;
-jumpout;end;i:=idfirst;while i<idloc do begin bytemem[w,k]:=buffer[i];
-k:=k+1;i:=i+1;end;byteptr[w]:=k;bytestart[nameptr+2]:=k;
-nameptr:=nameptr+1;if buffer[idfirst]<>34 then ilk[p]:=t else{64:}
-begin ilk[p]:=1;
-if l-doublechars=2 then equiv[p]:=buffer[idfirst+1]+32768 else begin
-equiv[p]:=stringptr+32768;l:=l-doublechars-1;
-if l>99 then begin writeln(termout);
-write(termout,'! Preprocessed string is too long');error;end;
-stringptr:=stringptr+1;write(pool,xchr[48+l div 10],xchr[48+l mod 10]);
-poolchecksum:=poolchecksum+poolchecksum+l;
-while poolchecksum>536870839 do poolchecksum:=poolchecksum-536870839;
-i:=idfirst+1;while i<idloc do begin write(pool,xchr[buffer[i]]);
-poolchecksum:=poolchecksum+poolchecksum+buffer[i];
-while poolchecksum>536870839 do poolchecksum:=poolchecksum-536870839;
-if(buffer[i]=34)or(buffer[i]=64)then i:=i+2 else i:=i+1;end;
-writeln(pool);end;end{:64};end{:61};end{:57};idlookup:=p;end;{:53}{66:}
-function modlookup(l:sixteenbits):namepointer;label 31;var c:0..4;
-j:0..longestname;k:0..maxbytes;w:0..1;p:namepointer;q:namepointer;
-begin c:=2;q:=0;p:=ilk[0];while p<>0 do begin{68:}begin k:=bytestart[p];
-w:=p mod 2;c:=1;j:=1;
-while(k<bytestart[p+2])and(j<=l)and(modtext[j]=bytemem[w,k])do begin k:=
-k+1;j:=j+1;end;
-if k=bytestart[p+2]then if j>l then c:=1 else c:=4 else if j>l then c:=3
-else if modtext[j]<bytemem[w,k]then c:=0 else c:=2;end{:68};q:=p;
-if c=0 then p:=link[q]else if c=2 then p:=ilk[q]else goto 31;end;{67:}
-w:=nameptr mod 2;k:=byteptr[w];
-if k+l>maxbytes then begin writeln(termout);
-write(termout,'! Sorry, ','byte memory',' capacity exceeded');error;
-history:=3;jumpout;end;
-if nameptr>maxnames-2 then begin writeln(termout);
-write(termout,'! Sorry, ','name',' capacity exceeded');error;history:=3;
-jumpout;end;p:=nameptr;if c=0 then link[q]:=p else ilk[q]:=p;link[p]:=0;
-ilk[p]:=0;c:=1;equiv[p]:=0;
-for j:=1 to l do bytemem[w,k+j-1]:=modtext[j];byteptr[w]:=k+l;
-bytestart[nameptr+2]:=k+l;nameptr:=nameptr+1;{:67};
-31:if c<>1 then begin begin writeln(termout);
-write(termout,'! Incompatible section names');error;end;p:=0;end;
-modlookup:=p;end;{:66}{69:}
-function prefixlookup(l:sixteenbits):namepointer;var c:0..4;
-count:0..maxnames;j:0..longestname;k:0..maxbytes;w:0..1;p:namepointer;
-q:namepointer;r:namepointer;begin q:=0;p:=ilk[0];count:=0;r:=0;
-while p<>0 do begin{68:}begin k:=bytestart[p];w:=p mod 2;c:=1;j:=1;
-while(k<bytestart[p+2])and(j<=l)and(modtext[j]=bytemem[w,k])do begin k:=
-k+1;j:=j+1;end;
-if k=bytestart[p+2]then if j>l then c:=1 else c:=4 else if j>l then c:=3
-else if modtext[j]<bytemem[w,k]then c:=0 else c:=2;end{:68};
-if c=0 then p:=link[p]else if c=2 then p:=ilk[p]else begin r:=p;
-count:=count+1;q:=ilk[p];p:=link[p];end;if p=0 then begin p:=q;q:=0;end;
-end;if count<>1 then if count=0 then begin writeln(termout);
-write(termout,'! Name does not match');error;
-end else begin writeln(termout);write(termout,'! Ambiguous prefix');
-error;end;prefixlookup:=r;end;{:69}{73:}
-procedure storetwobytes(x:sixteenbits);
-begin if tokptr[z]+2>maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=x div 256;
-tokmem[z,tokptr[z]+1]:=x mod 256;tokptr[z]:=tokptr[z]+2;end;{:73}{74:}
-{procedure printrepl(p:textpointer);var k:0..maxtoks;a:sixteenbits;
-zp:0..2;
-begin if p>=textptr then write(termout,'BAD')else begin k:=tokstart[p];
-zp:=p mod 3;while k<tokstart[p+3]do begin a:=tokmem[zp,k];
-if a>=128 then[75:]begin k:=k+1;
-if a<168 then begin a:=(a-128)*256+tokmem[zp,k];printid(a);
-if bytemem[a mod 2,bytestart[a]]=34 then write(termout,'"')else write(
-termout,' ');end else if a<208 then begin write(termout,'@<');
-printid((a-168)*256+tokmem[zp,k]);write(termout,'@>');
-end else begin a:=(a-208)*256+tokmem[zp,k];
-write(termout,'@',xchr[123],a:1,'@',xchr[125]);end;
-end[:75]else[76:]case a of 9:write(termout,'@',xchr[123]);
-10:write(termout,'@',xchr[125]);12:write(termout,'@''');
-13:write(termout,'@"');125:write(termout,'@$');0:write(termout,'#');
-64:write(termout,'@@');2:write(termout,'@=');3:write(termout,'@\');
-else write(termout,xchr[a])end[:76];k:=k+1;end;end;end;}{:74}{84:}
-procedure pushlevel(p:namepointer);
-begin if stackptr=stacksize then begin writeln(termout);
-write(termout,'! Sorry, ','stack',' capacity exceeded');error;
-history:=3;jumpout;end else begin stack[stackptr]:=curstate;
-stackptr:=stackptr+1;curstate.namefield:=p;curstate.replfield:=equiv[p];
-zo:=curstate.replfield mod 3;
-curstate.bytefield:=tokstart[curstate.replfield];
-curstate.endfield:=tokstart[curstate.replfield+3];curstate.modfield:=0;
-end;end;{:84}{85:}procedure poplevel;label 10;
-begin if textlink[curstate.replfield]=0 then begin if ilk[curstate.
-namefield]=3 then{91:}begin nameptr:=nameptr-1;textptr:=textptr-1;
-z:=textptr mod 3;{if tokptr[z]>maxtokptr[z]then maxtokptr[z]:=tokptr[z];
-}tokptr[z]:=tokstart[textptr];
-{byteptr[nameptr mod 2]:=byteptr[nameptr mod 2]-1;}end{:91};
-end else if textlink[curstate.replfield]<maxtexts then begin curstate.
-replfield:=textlink[curstate.replfield];zo:=curstate.replfield mod 3;
-curstate.bytefield:=tokstart[curstate.replfield];
-curstate.endfield:=tokstart[curstate.replfield+3];goto 10;end;
-stackptr:=stackptr-1;if stackptr>0 then begin curstate:=stack[stackptr];
-zo:=curstate.replfield mod 3;end;10:end;{:85}{87:}
-function getoutput:sixteenbits;label 20,30,31;var a:sixteenbits;
-b:eightbits;bal:sixteenbits;k:0..maxbytes;w:0..1;
-begin 20:if stackptr=0 then begin a:=0;goto 31;end;
-if curstate.bytefield=curstate.endfield then begin curval:=-curstate.
-modfield;poplevel;if curval=0 then goto 20;a:=129;goto 31;end;
-a:=tokmem[zo,curstate.bytefield];
-curstate.bytefield:=curstate.bytefield+1;if a<128 then if a=0 then{92:}
-begin pushlevel(nameptr-1);goto 20;end{:92}else goto 31;
-a:=(a-128)*256+tokmem[zo,curstate.bytefield];
-curstate.bytefield:=curstate.bytefield+1;if a<10240 then{89:}
-begin case ilk[a]of 0:begin curval:=a;a:=130;end;
-1:begin curval:=equiv[a]-32768;a:=128;end;2:begin pushlevel(a);goto 20;
-end;3:begin{90:}
-while(curstate.bytefield=curstate.endfield)and(stackptr>0)do poplevel;
-if(stackptr=0)or(tokmem[zo,curstate.bytefield]<>40)then begin begin
-writeln(termout);write(termout,'! No parameter given for ');end;
-printid(a);error;goto 20;end;{93:}bal:=1;
-curstate.bytefield:=curstate.bytefield+1;
-while true do begin b:=tokmem[zo,curstate.bytefield];
-curstate.bytefield:=curstate.bytefield+1;
-if b=0 then storetwobytes(nameptr+32767)else begin if b>=128 then begin
-begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=b;tokptr[z]:=tokptr[z]+1;
-end;b:=tokmem[zo,curstate.bytefield];
-curstate.bytefield:=curstate.bytefield+1;
-end else case b of 40:bal:=bal+1;41:begin bal:=bal-1;
-if bal=0 then goto 30;end;
-39:repeat begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=b;tokptr[z]:=tokptr[z]+1;
-end;b:=tokmem[zo,curstate.bytefield];
-curstate.bytefield:=curstate.bytefield+1;until b=39;else end;
-begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=b;tokptr[z]:=tokptr[z]+1;
-end;end;end;30:{:93};equiv[nameptr]:=textptr;ilk[nameptr]:=2;
-w:=nameptr mod 2;k:=byteptr[w];
-{if k=maxbytes then begin writeln(termout);
-write(termout,'! Sorry, ','byte memory',' capacity exceeded');error;
-history:=3;jumpout;end;bytemem[w,k]:=35;k:=k+1;byteptr[w]:=k;}
-if nameptr>maxnames-2 then begin writeln(termout);
-write(termout,'! Sorry, ','name',' capacity exceeded');error;history:=3;
-jumpout;end;bytestart[nameptr+2]:=k;nameptr:=nameptr+1;
-if textptr>maxtexts-3 then begin writeln(termout);
-write(termout,'! Sorry, ','text',' capacity exceeded');error;history:=3;
-jumpout;end;textlink[textptr]:=0;tokstart[textptr+3]:=tokptr[z];
-textptr:=textptr+1;z:=textptr mod 3{:90};pushlevel(a);goto 20;end;
-else begin writeln(termout);
-write(termout,'! This can''t happen (','output',')');error;history:=3;
-jumpout;end end;goto 31;end{:89};if a<20480 then{88:}begin a:=a-10240;
-if equiv[a]<>0 then pushlevel(a)else if a<>0 then begin begin writeln(
-termout);write(termout,'! Not present: <');end;printid(a);
-write(termout,'>');error;end;goto 20;end{:88};curval:=a-20480;a:=129;
-curstate.modfield:=curval;31:{if troubleshooting then debughelp;}
-getoutput:=a;end;{:87}{97:}procedure flushbuffer;var k:0..outbufsize;
-b:0..outbufsize;begin b:=breakptr;
-if(semiptr<>0)and(outptr-semiptr<=linelength)then breakptr:=semiptr;
-for k:=1 to breakptr do write(Pascalfile,xchr[outbuf[k-1]]);
-writeln(Pascalfile);line:=line+1;
-if line mod 100=0 then begin write(termout,'.');
-if line mod 500=0 then write(termout,line:1);{break(termout);}end;
-if breakptr<outptr then begin if outbuf[breakptr]=32 then begin breakptr
-:=breakptr+1;if breakptr>b then b:=breakptr;end;
-for k:=breakptr to outptr-1 do outbuf[k-breakptr]:=outbuf[k];end;
-outptr:=outptr-breakptr;breakptr:=b-breakptr;semiptr:=0;
-if outptr>linelength then begin begin writeln(termout);
-write(termout,'! Long line must be truncated');error;end;
-outptr:=linelength;end;end;{:97}{99:}procedure appval(v:integer);
-var k:0..outbufsize;begin k:=outbufsize;repeat outbuf[k]:=v mod 10;
-v:=v div 10;k:=k-1;until v=0;repeat k:=k+1;
-begin outbuf[outptr]:=outbuf[k]+48;outptr:=outptr+1;end;
-until k=outbufsize;end;{:99}{101:}procedure sendout(t:eightbits;
-v:sixteenbits);label 20;var k:0..linelength;begin{102:}
-20:case outstate of 1:if t<>3 then begin breakptr:=outptr;
-if t=2 then begin outbuf[outptr]:=32;outptr:=outptr+1;end;end;
-2:begin begin outbuf[outptr]:=44-outapp;outptr:=outptr+1;end;
-if outptr>linelength then flushbuffer;breakptr:=outptr;end;
-3,4:begin{103:}
-if(outval<0)or((outval=0)and(lastsign<0))then begin outbuf[outptr]:=45;
-outptr:=outptr+1;
-end else if outsign>0 then begin outbuf[outptr]:=outsign;
-outptr:=outptr+1;end;appval(abs(outval));
-if outptr>linelength then flushbuffer;{:103};outstate:=outstate-2;
-goto 20;end;5:{104:}begin if(t=3)or({105:}
-((t=2)and(v=3)and(((outcontrib[1]=68)and(outcontrib[2]=73)and(outcontrib
-[3]=86))or((outcontrib[1]=77)and(outcontrib[2]=79)and(outcontrib[3]=68))
-))or((t=0)and((v=42)or(v=47))){:105})then begin{103:}
-if(outval<0)or((outval=0)and(lastsign<0))then begin outbuf[outptr]:=45;
-outptr:=outptr+1;
-end else if outsign>0 then begin outbuf[outptr]:=outsign;
-outptr:=outptr+1;end;appval(abs(outval));
-if outptr>linelength then flushbuffer;{:103};outsign:=43;outval:=outapp;
-end else outval:=outval+outapp;outstate:=3;goto 20;end{:104};
-0:if t<>3 then breakptr:=outptr;else end{:102};
-if t<>0 then for k:=1 to v do begin outbuf[outptr]:=outcontrib[k];
-outptr:=outptr+1;end else begin outbuf[outptr]:=v;outptr:=outptr+1;end;
-if outptr>linelength then flushbuffer;
-if(t=0)and((v=59)or(v=125))then begin semiptr:=outptr;breakptr:=outptr;
-end;if t>=2 then outstate:=1 else outstate:=0 end;{:101}{106:}
-procedure sendsign(v:integer);
-begin case outstate of 2,4:outapp:=outapp*v;3:begin outapp:=v;
-outstate:=4;end;5:begin outval:=outval+outapp;outapp:=v;outstate:=4;end;
-else begin breakptr:=outptr;outapp:=v;outstate:=2;end end;
-lastsign:=outapp;end;{:106}{107:}procedure sendval(v:integer);
-label 666,10;begin case outstate of 1:begin{110:}
-if(outptr=breakptr+3)or((outptr=breakptr+4)and(outbuf[breakptr]=32))then
-if((outbuf[outptr-3]=68)and(outbuf[outptr-2]=73)and(outbuf[outptr-1]=86)
-)or((outbuf[outptr-3]=77)and(outbuf[outptr-2]=79)and(outbuf[outptr-1]=68
-))then goto 666{:110};outsign:=32;outstate:=3;outval:=v;
-breakptr:=outptr;lastsign:=+1;end;0:begin{109:}
-if(outptr=breakptr+1)and((outbuf[breakptr]=42)or(outbuf[breakptr]=47))
-then goto 666{:109};outsign:=0;outstate:=3;outval:=v;breakptr:=outptr;
-lastsign:=+1;end;{108:}2:begin outsign:=43;outstate:=3;outval:=outapp*v;
-end;3:begin outstate:=5;outapp:=v;begin writeln(termout);
-write(termout,'! Two numbers occurred without a sign between them');
-error;end;end;4:begin outstate:=5;outapp:=outapp*v;end;
-5:begin outval:=outval+outapp;outapp:=v;begin writeln(termout);
-write(termout,'! Two numbers occurred without a sign between them');
-error;end;end;{:108}else goto 666 end;goto 10;666:{111:}
-if v>=0 then begin if outstate=1 then begin breakptr:=outptr;
-begin outbuf[outptr]:=32;outptr:=outptr+1;end;end;appval(v);
-if outptr>linelength then flushbuffer;outstate:=1;
-end else begin begin outbuf[outptr]:=40;outptr:=outptr+1;end;
-begin outbuf[outptr]:=45;outptr:=outptr+1;end;appval(-v);
-begin outbuf[outptr]:=41;outptr:=outptr+1;end;
-if outptr>linelength then flushbuffer;outstate:=0;end{:111};10:end;
-{:107}{113:}procedure sendtheoutput;label 2,21,22;var curchar:eightbits;
-k:0..linelength;j:0..maxbytes;w:0..1;n:integer;
-begin while stackptr>0 do begin curchar:=getoutput;
-21:case curchar of 0:;{116:}
-65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,
-89,90:begin outcontrib[1]:=curchar;sendout(2,1);end;
-97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115
-,116,117,118,119,120,121,122:begin outcontrib[1]:=curchar-32;
-sendout(2,1);end;130:begin k:=0;j:=bytestart[curval];w:=curval mod 2;
-while(k<maxidlength)and(j<bytestart[curval+2])do begin k:=k+1;
-outcontrib[k]:=bytemem[w,j];j:=j+1;
-if outcontrib[k]>=97 then outcontrib[k]:=outcontrib[k]-32 else if
-outcontrib[k]=95 then k:=k-1;end;sendout(2,k);end;{:116}{119:}
-48,49,50,51,52,53,54,55,56,57:begin n:=0;repeat curchar:=curchar-48;
-if n>=214748364 then begin writeln(termout);
-write(termout,'! Constant too big');error;end else n:=10*n+curchar;
-curchar:=getoutput;until(curchar>57)or(curchar<48);sendval(n);k:=0;
-if curchar=101 then curchar:=69;if curchar=69 then goto 2 else goto 21;
-end;125:sendval(poolchecksum);12:begin n:=0;curchar:=48;
-repeat curchar:=curchar-48;if n>=268435456 then begin writeln(termout);
-write(termout,'! Constant too big');error;end else n:=8*n+curchar;
-curchar:=getoutput;until(curchar>55)or(curchar<48);sendval(n);goto 21;
-end;13:begin n:=0;curchar:=48;
-repeat if curchar>=65 then curchar:=curchar-55 else curchar:=curchar-48;
-if n>=134217728 then begin writeln(termout);
-write(termout,'! Constant too big');error;end else n:=16*n+curchar;
-curchar:=getoutput;
-until(curchar>70)or(curchar<48)or((curchar>57)and(curchar<65));
-sendval(n);goto 21;end;128:sendval(curval);46:begin k:=1;
-outcontrib[1]:=46;curchar:=getoutput;
-if curchar=46 then begin outcontrib[2]:=46;sendout(1,2);
-end else if(curchar>=48)and(curchar<=57)then goto 2 else begin sendout(0
-,46);goto 21;end;end;{:119}43,45:sendsign(44-curchar);{114:}
-4:begin outcontrib[1]:=65;outcontrib[2]:=78;outcontrib[3]:=68;
-sendout(2,3);end;5:begin outcontrib[1]:=78;outcontrib[2]:=79;
-outcontrib[3]:=84;sendout(2,3);end;6:begin outcontrib[1]:=73;
-outcontrib[2]:=78;sendout(2,2);end;31:begin outcontrib[1]:=79;
-outcontrib[2]:=82;sendout(2,2);end;24:begin outcontrib[1]:=58;
-outcontrib[2]:=61;sendout(1,2);end;26:begin outcontrib[1]:=60;
-outcontrib[2]:=62;sendout(1,2);end;28:begin outcontrib[1]:=60;
-outcontrib[2]:=61;sendout(1,2);end;29:begin outcontrib[1]:=62;
-outcontrib[2]:=61;sendout(1,2);end;30:begin outcontrib[1]:=61;
-outcontrib[2]:=61;sendout(1,2);end;32:begin outcontrib[1]:=46;
-outcontrib[2]:=46;sendout(1,2);end;{:114}39:{117:}begin k:=1;
-outcontrib[1]:=39;repeat if k<linelength then k:=k+1;
-outcontrib[k]:=getoutput;until(outcontrib[k]=39)or(stackptr=0);
-if k=linelength then begin writeln(termout);
-write(termout,'! String too long');error;end;sendout(1,k);
-curchar:=getoutput;if curchar=39 then outstate:=6;goto 21;end{:117};
-{115:}
-33,34,35,36,37,38,40,41,42,44,47,58,59,60,61,62,63,64,91,92,93,94,95,96,
-123,124{:115}:sendout(0,curchar);{121:}
-9:begin if bracelevel=0 then sendout(0,123)else sendout(0,91);
-bracelevel:=bracelevel+1;end;
-10:if bracelevel>0 then begin bracelevel:=bracelevel-1;
-if bracelevel=0 then sendout(0,125)else sendout(0,93);
-end else begin writeln(termout);write(termout,'! Extra @}');error;end;
-129:begin if bracelevel=0 then sendout(0,123)else sendout(0,91);
-if curval<0 then begin sendout(0,58);sendval(-curval);
-end else begin sendval(curval);sendout(0,58);end;
-if bracelevel=0 then sendout(0,125)else sendout(0,93);end;{:121}
-127:begin sendout(3,0);outstate:=6;end;2:{118:}begin k:=0;
-repeat if k<linelength then k:=k+1;outcontrib[k]:=getoutput;
-until(outcontrib[k]=2)or(stackptr=0);
-if k=linelength then begin writeln(termout);
-write(termout,'! Verbatim string too long');error;end;sendout(1,k-1);
-end{:118};3:{122:}begin sendout(1,0);
-while outptr>0 do begin if outptr<=linelength then breakptr:=outptr;
-flushbuffer;end;outstate:=0;end{:122};else begin writeln(termout);
-write(termout,'! Can''t output ASCII code ',curchar:1);error;end end;
-goto 22;2:{120:}repeat if k<linelength then k:=k+1;
-outcontrib[k]:=curchar;curchar:=getoutput;
-if(outcontrib[k]=69)and((curchar=43)or(curchar=45))then begin if k<
-linelength then k:=k+1;outcontrib[k]:=curchar;curchar:=getoutput;
-end else if curchar=101 then curchar:=69;
-until(curchar<>69)and((curchar<48)or(curchar>57));
-if k=linelength then begin writeln(termout);
-write(termout,'! Fraction too long');error;end;sendout(3,k);
-goto 21{:120};22:end;end;{:113}{127:}function linesdontmatch:boolean;
-label 10;var k:0..bufsize;begin linesdontmatch:=true;
-if changelimit<>limit then goto 10;
-if limit>0 then for k:=0 to limit-1 do if changebuffer[k]<>buffer[k]then
-goto 10;linesdontmatch:=false;10:end;{:127}{128:}
-procedure primethechangebuffer;label 22,30,10;var k:0..bufsize;
-begin changelimit:=0;{129:}while true do begin line:=line+1;
-if not inputln(changefile)then goto 10;if limit<2 then goto 22;
-if buffer[0]<>64 then goto 22;
-if(buffer[1]>=88)and(buffer[1]<=90)then buffer[1]:=buffer[1]+32;
-if buffer[1]=120 then goto 30;
-if(buffer[1]=121)or(buffer[1]=122)then begin loc:=2;
-begin writeln(termout);write(termout,'! Where is the matching @x?');
-error;end;end;22:end;30:{:129};{130:}repeat line:=line+1;
-if not inputln(changefile)then begin begin writeln(termout);
-write(termout,'! Change file ended after @x');error;end;goto 10;end;
-until limit>0;{:130};{131:}begin changelimit:=limit;
-if limit>0 then for k:=0 to limit-1 do changebuffer[k]:=buffer[k];
-end{:131};10:end;{:128}{132:}procedure checkchange;label 10;
-var n:integer;k:0..bufsize;begin if linesdontmatch then goto 10;n:=0;
-while true do begin changing:=not changing;templine:=otherline;
-otherline:=line;line:=templine;line:=line+1;
-if not inputln(changefile)then begin begin writeln(termout);
-write(termout,'! Change file ended before @y');error;end;changelimit:=0;
-changing:=not changing;templine:=otherline;otherline:=line;
-line:=templine;goto 10;end;{133:}
-if limit>1 then if buffer[0]=64 then begin if(buffer[1]>=88)and(buffer[1
-]<=90)then buffer[1]:=buffer[1]+32;
-if(buffer[1]=120)or(buffer[1]=122)then begin loc:=2;
-begin writeln(termout);write(termout,'! Where is the matching @y?');
-error;end;end else if buffer[1]=121 then begin if n>0 then begin loc:=2;
-begin writeln(termout);
-write(termout,'! Hmm... ',n:1,' of the preceding lines failed to match')
-;error;end;end;goto 10;end;end{:133};{131:}begin changelimit:=limit;
-if limit>0 then for k:=0 to limit-1 do changebuffer[k]:=buffer[k];
-end{:131};changing:=not changing;templine:=otherline;otherline:=line;
-line:=templine;line:=line+1;
-if not inputln(webfile)then begin begin writeln(termout);
-write(termout,'! WEB file ended during a change');error;end;
-inputhasended:=true;goto 10;end;if linesdontmatch then n:=n+1;end;
-10:end;{:132}{135:}procedure getline;label 20;
-begin 20:if changing then{137:}begin line:=line+1;
-if not inputln(changefile)then begin begin writeln(termout);
-write(termout,'! Change file ended without @z');error;end;buffer[0]:=64;
-buffer[1]:=122;limit:=2;end;
-if limit>1 then if buffer[0]=64 then begin if(buffer[1]>=88)and(buffer[1
-]<=90)then buffer[1]:=buffer[1]+32;
-if(buffer[1]=120)or(buffer[1]=121)then begin loc:=2;
-begin writeln(termout);write(termout,'! Where is the matching @z?');
-error;end;end else if buffer[1]=122 then begin primethechangebuffer;
-changing:=not changing;templine:=otherline;otherline:=line;
-line:=templine;end;end;end{:137};if not changing then begin{136:}
-begin line:=line+1;
-if not inputln(webfile)then inputhasended:=true else if limit=
-changelimit then if buffer[0]=changebuffer[0]then if changelimit>0 then
-checkchange;end{:136};if changing then goto 20;end;loc:=0;
-buffer[limit]:=32;end;{:135}{139:}
-function controlcode(c:ASCIIcode):eightbits;
-begin case c of 64:controlcode:=64;39:controlcode:=12;
-34:controlcode:=13;36:controlcode:=125;32,9:controlcode:=136;
-42:begin write(termout,'*',modulecount+1:1);{break(termout);}
-controlcode:=136;end;68,100:controlcode:=133;70,102:controlcode:=132;
-123:controlcode:=9;125:controlcode:=10;80,112:controlcode:=134;
-84,116,94,46,58:controlcode:=131;38:controlcode:=127;
-60:controlcode:=135;61:controlcode:=2;92:controlcode:=3;
-else controlcode:=0 end;end;{:139}{140:}function skipahead:eightbits;
-label 30;var c:eightbits;
-begin while true do begin if loc>limit then begin getline;
-if inputhasended then begin c:=136;goto 30;end;end;buffer[limit+1]:=64;
-while buffer[loc]<>64 do loc:=loc+1;if loc<=limit then begin loc:=loc+2;
-c:=controlcode(buffer[loc-1]);if(c<>0)or(buffer[loc-1]=62)then goto 30;
-end;end;30:skipahead:=c;end;{:140}{141:}procedure skipcomment;label 10;
-var bal:eightbits;c:ASCIIcode;begin bal:=0;
-while true do begin if loc>limit then begin getline;
-if inputhasended then begin begin writeln(termout);
-write(termout,'! Input ended in mid-comment');error;end;goto 10;end;end;
-c:=buffer[loc];loc:=loc+1;{142:}if c=64 then begin c:=buffer[loc];
-if(c<>32)and(c<>9)and(c<>42)and(c<>122)and(c<>90)then loc:=loc+1 else
-begin begin writeln(termout);
-write(termout,'! Section ended in mid-comment');error;end;loc:=loc-1;
-goto 10;
-end end else if(c=92)and(buffer[loc]<>64)then loc:=loc+1 else if c=123
-then bal:=bal+1 else if c=125 then begin if bal=0 then goto 10;
-bal:=bal-1;end{:142};end;10:end;{:141}{145:}function getnext:eightbits;
-label 20,30,31;var c:eightbits;d:eightbits;j,k:0..longestname;
-begin 20:if loc>limit then begin getline;
-if inputhasended then begin c:=136;goto 31;end;end;c:=buffer[loc];
-loc:=loc+1;if scanninghex then{146:}
-if((c>=48)and(c<=57))or((c>=65)and(c<=70))then goto 31 else scanninghex
-:=false{:146};
-case c of 65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85
-,86,87,88,89,90,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111
-,112,113,114,115,116,117,118,119,120,121,122:{148:}
-begin if((c=101)or(c=69))and(loc>1)then if(buffer[loc-2]<=57)and(buffer[
-loc-2]>=48)then c:=0;if c<>0 then begin loc:=loc-1;idfirst:=loc;
-repeat loc:=loc+1;d:=buffer[loc];
-until((d<48)or((d>57)and(d<65))or((d>90)and(d<97))or(d>122))and(d<>95);
-if loc>idfirst+1 then begin c:=130;idloc:=loc;end;end else c:=69;
-end{:148};34:{149:}begin doublechars:=0;idfirst:=loc-1;
-repeat d:=buffer[loc];loc:=loc+1;
-if(d=34)or(d=64)then if buffer[loc]=d then begin loc:=loc+1;d:=0;
-doublechars:=doublechars+1;
-end else begin if d=64 then begin writeln(termout);
-write(termout,'! Double @ sign missing');error;
-end end else if loc>limit then begin begin writeln(termout);
-write(termout,'! String constant didn''t end');error;end;d:=34;end;
-until d=34;idloc:=loc-1;c:=130;end{:149};64:{150:}
-begin c:=controlcode(buffer[loc]);loc:=loc+1;
-if c=0 then goto 20 else if c=13 then scanninghex:=true else if c=135
-then{151:}begin{153:}k:=0;
-while true do begin if loc>limit then begin getline;
-if inputhasended then begin begin writeln(termout);
-write(termout,'! Input ended in section name');error;end;goto 30;end;
-end;d:=buffer[loc];{154:}if d=64 then begin d:=buffer[loc+1];
-if d=62 then begin loc:=loc+2;goto 30;end;
-if(d=32)or(d=9)or(d=42)then begin begin writeln(termout);
-write(termout,'! Section name didn''t end');error;end;goto 30;end;
-k:=k+1;modtext[k]:=64;loc:=loc+1;end{:154};loc:=loc+1;
-if k<longestname-1 then k:=k+1;if(d=32)or(d=9)then begin d:=32;
-if modtext[k-1]=32 then k:=k-1;end;modtext[k]:=d;end;30:{155:}
-if k>=longestname-2 then begin begin writeln(termout);
-write(termout,'! Section name too long: ');end;
-for j:=1 to 25 do write(termout,xchr[modtext[j]]);write(termout,'...');
-if history=0 then history:=1;end{:155};
-if(modtext[k]=32)and(k>0)then k:=k-1;{:153};
-if k>3 then begin if(modtext[k]=46)and(modtext[k-1]=46)and(modtext[k-2]=
-46)then curmodule:=prefixlookup(k-3)else curmodule:=modlookup(k);
-end else curmodule:=modlookup(k);end{:151}
-else if c=131 then begin repeat c:=skipahead;until c<>64;
-if buffer[loc-1]<>62 then begin writeln(termout);
-write(termout,'! Improper @ within control text');error;end;goto 20;end;
-end{:150};{147:}
-46:if buffer[loc]=46 then begin if loc<=limit then begin c:=32;
-loc:=loc+1;end;
-end else if buffer[loc]=41 then begin if loc<=limit then begin c:=93;
-loc:=loc+1;end;end;
-58:if buffer[loc]=61 then begin if loc<=limit then begin c:=24;
-loc:=loc+1;end;end;
-61:if buffer[loc]=61 then begin if loc<=limit then begin c:=30;
-loc:=loc+1;end;end;
-62:if buffer[loc]=61 then begin if loc<=limit then begin c:=29;
-loc:=loc+1;end;end;
-60:if buffer[loc]=61 then begin if loc<=limit then begin c:=28;
-loc:=loc+1;end;
-end else if buffer[loc]=62 then begin if loc<=limit then begin c:=26;
-loc:=loc+1;end;end;
-40:if buffer[loc]=42 then begin if loc<=limit then begin c:=9;
-loc:=loc+1;end;
-end else if buffer[loc]=46 then begin if loc<=limit then begin c:=91;
-loc:=loc+1;end;end;
-42:if buffer[loc]=41 then begin if loc<=limit then begin c:=10;
-loc:=loc+1;end;end;{:147}32,9:goto 20;123:begin skipcomment;goto 20;end;
-125:begin begin writeln(termout);write(termout,'! Extra }');error;end;
-goto 20;end;else if c>=128 then goto 20 else end;
-31:{if troubleshooting then debughelp;}getnext:=c;end;{:145}{157:}
-procedure scannumeric(p:namepointer);label 21,30;
-var accumulator:integer;nextsign:-1..+1;q:namepointer;val:integer;
-begin{158:}accumulator:=0;nextsign:=+1;
-while true do begin nextcontrol:=getnext;
-21:case nextcontrol of 48,49,50,51,52,53,54,55,56,57:begin{160:}val:=0;
-repeat val:=10*val+nextcontrol-48;nextcontrol:=getnext;
-until(nextcontrol>57)or(nextcontrol<48){:160};
-begin accumulator:=accumulator+nextsign*(val);nextsign:=+1;end;goto 21;
-end;12:begin{161:}val:=0;nextcontrol:=48;
-repeat val:=8*val+nextcontrol-48;nextcontrol:=getnext;
-until(nextcontrol>55)or(nextcontrol<48){:161};
-begin accumulator:=accumulator+nextsign*(val);nextsign:=+1;end;goto 21;
-end;13:begin{162:}val:=0;nextcontrol:=48;
-repeat if nextcontrol>=65 then nextcontrol:=nextcontrol-7;
-val:=16*val+nextcontrol-48;nextcontrol:=getnext;
-until(nextcontrol>70)or(nextcontrol<48)or((nextcontrol>57)and(
-nextcontrol<65)){:162};begin accumulator:=accumulator+nextsign*(val);
-nextsign:=+1;end;goto 21;end;130:begin q:=idlookup(0);
-if ilk[q]<>1 then begin nextcontrol:=42;goto 21;end;
-begin accumulator:=accumulator+nextsign*(equiv[q]-32768);nextsign:=+1;
-end;end;43:;45:nextsign:=-nextsign;132,133,135,134,136:goto 30;
-59:begin writeln(termout);
-write(termout,'! Omit semicolon in numeric definition');error;end;
-else {159:}begin begin writeln(termout);
-write(termout,'! Improper numeric definition will be flushed');error;
-end;repeat nextcontrol:=skipahead until(nextcontrol>=132);
-if nextcontrol=135 then begin loc:=loc-2;nextcontrol:=getnext;end;
-accumulator:=0;goto 30;end{:159}end;end;30:{:158};
-if abs(accumulator)>=32768 then begin begin writeln(termout);
-write(termout,'! Value too big: ',accumulator:1);error;end;
-accumulator:=0;end;equiv[p]:=accumulator+32768;end;{:157}{165:}
-procedure scanrepl(t:eightbits);label 22,30,31,21;var a:sixteenbits;
-b:ASCIIcode;bal:eightbits;begin bal:=0;
-while true do begin 22:a:=getnext;case a of 40:bal:=bal+1;
-41:if bal=0 then begin writeln(termout);write(termout,'! Extra )');
-error;end else bal:=bal-1;39:{168:}begin b:=39;
-while true do begin begin if tokptr[z]=maxtoks then begin writeln(
-termout);write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=b;tokptr[z]:=tokptr[z]+1;
-end;if b=64 then if buffer[loc]=64 then loc:=loc+1 else begin writeln(
-termout);write(termout,'! You should double @ signs in strings');error;
-end;if loc=limit then begin begin writeln(termout);
-write(termout,'! String didn''t end');error;end;buffer[loc]:=39;
-buffer[loc+1]:=0;end;b:=buffer[loc];loc:=loc+1;
-if b=39 then begin if buffer[loc]<>39 then goto 31 else begin loc:=loc+1
-;begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=39;tokptr[z]:=tokptr[z]+1;
-end;end;end;end;31:end{:168};35:if t=3 then a:=0;{167:}
-130:begin a:=idlookup(0);
-begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=(a div 256)+128;
-tokptr[z]:=tokptr[z]+1;end;a:=a mod 256;end;
-135:if t<>135 then goto 30 else begin begin if tokptr[z]=maxtoks then
-begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=(curmodule div 256)+168;
-tokptr[z]:=tokptr[z]+1;end;a:=curmodule mod 256;end;2:{169:}
-begin begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=2;tokptr[z]:=tokptr[z]+1;
-end;buffer[limit+1]:=64;
-21:if buffer[loc]=64 then begin if loc<limit then if buffer[loc+1]=64
-then begin begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=64;tokptr[z]:=tokptr[z]+1;
-end;loc:=loc+2;goto 21;end;
-end else begin begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=buffer[loc];
-tokptr[z]:=tokptr[z]+1;end;loc:=loc+1;goto 21;end;
-if loc>=limit then begin writeln(termout);
-write(termout,'! Verbatim string didn''t end');error;
-end else if buffer[loc+1]<>62 then begin writeln(termout);
-write(termout,'! You should double @ signs in verbatim strings');error;
-end;loc:=loc+2;end{:169};
-133,132,134:if t<>135 then goto 30 else begin begin writeln(termout);
-write(termout,'! @',xchr[buffer[loc-1]],' is ignored in Pascal text');
-error;end;goto 22;end;136:goto 30;{:167}else end;
-begin if tokptr[z]=maxtoks then begin writeln(termout);
-write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=a;tokptr[z]:=tokptr[z]+1;
-end;end;30:nextcontrol:=a;{166:}
-if bal>0 then begin if bal=1 then begin writeln(termout);
-write(termout,'! Missing )');error;end else begin writeln(termout);
-write(termout,'! Missing ',bal:1,' )''s');error;end;
-while bal>0 do begin begin if tokptr[z]=maxtoks then begin writeln(
-termout);write(termout,'! Sorry, ','token',' capacity exceeded');error;
-history:=3;jumpout;end;tokmem[z,tokptr[z]]:=41;tokptr[z]:=tokptr[z]+1;
-end;bal:=bal-1;end;end{:166};
-if textptr>maxtexts-3 then begin writeln(termout);
-write(termout,'! Sorry, ','text',' capacity exceeded');error;history:=3;
-jumpout;end;currepltext:=textptr;tokstart[textptr+3]:=tokptr[z];
-textptr:=textptr+1;if z=2 then z:=0 else z:=z+1;end;{:165}{170:}
-procedure definemacro(t:eightbits);var p:namepointer;
-begin p:=idlookup(t);scanrepl(t);equiv[p]:=currepltext;
-textlink[currepltext]:=0;end;{:170}{172:}procedure scanmodule;
-label 22,30,10;var p:namepointer;begin modulecount:=modulecount+1;{173:}
-nextcontrol:=0;
-while true do begin 22:while nextcontrol<=132 do begin nextcontrol:=
-skipahead;if nextcontrol=135 then begin loc:=loc-2;nextcontrol:=getnext;
-end;end;if nextcontrol<>133 then goto 30;nextcontrol:=getnext;
-if nextcontrol<>130 then begin begin writeln(termout);
-write(termout,'! Definition flushed, must start with ',
-'identifier of length > 1');error;end;goto 22;end;nextcontrol:=getnext;
-if nextcontrol=61 then begin scannumeric(idlookup(1));goto 22;
-end else if nextcontrol=30 then begin definemacro(2);goto 22;
-end else{174:}if nextcontrol=40 then begin nextcontrol:=getnext;
-if nextcontrol=35 then begin nextcontrol:=getnext;
-if nextcontrol=41 then begin nextcontrol:=getnext;
-if nextcontrol=61 then begin begin writeln(termout);
-write(termout,'! Use == for macros');error;end;nextcontrol:=30;end;
-if nextcontrol=30 then begin definemacro(3);goto 22;end;end;end;end;
-{:174};begin writeln(termout);
-write(termout,'! Definition flushed since it starts badly');error;end;
-end;30:{:173};{175:}case nextcontrol of 134:p:=0;135:begin p:=curmodule;
-{176:}repeat nextcontrol:=getnext;until nextcontrol<>43;
-if(nextcontrol<>61)and(nextcontrol<>30)then begin begin writeln(termout)
-;write(termout,'! Pascal text flushed, = sign is missing');error;end;
-repeat nextcontrol:=skipahead;until nextcontrol=136;goto 10;end{:176};
-end;else goto 10 end;{177:}storetwobytes(53248+modulecount);{:177};
-scanrepl(135);{178:}
-if p=0 then begin textlink[lastunnamed]:=currepltext;
-lastunnamed:=currepltext;
-end else if equiv[p]=0 then equiv[p]:=currepltext else begin p:=equiv[p]
-;while textlink[p]<maxtexts do p:=textlink[p];textlink[p]:=currepltext;
-end;textlink[currepltext]:=maxtexts;{:178};{:175};10:end;{:172}{181:}
-{procedure debughelp;label 888,10;var k:integer;
-begin debugskipped:=debugskipped+1;
-if debugskipped<debugcycle then goto 10;debugskipped:=0;
-while true do begin write(termout,'#');break(termout);read(termin,ddt);
-if ddt<0 then goto 10 else if ddt=0 then begin goto 888;
-888:ddt:=0;
-end else begin read(termin,dd);case ddt of 1:printid(dd);
-2:printrepl(dd);3:for k:=1 to dd do write(termout,xchr[buffer[k]]);
-4:for k:=1 to dd do write(termout,xchr[modtext[k]]);
-5:for k:=1 to outptr do write(termout,xchr[outbuf[k]]);
-6:for k:=1 to dd do write(termout,xchr[outcontrib[k]]);
-else write(termout,'?')end;end;end;10:end;}{:181}{182:}
-begin initialize;{134:}openinput;line:=0;otherline:=0;changing:=true;
-primethechangebuffer;changing:=not changing;templine:=otherline;
-otherline:=line;line:=templine;limit:=0;loc:=1;buffer[0]:=32;
-inputhasended:=false;{:134};
-writeln(termout,'This is TANGLE, Version 4.4');{183:}phaseone:=true;
-modulecount:=0;repeat nextcontrol:=skipahead;until nextcontrol=136;
-while not inputhasended do scanmodule;{138:}
-if changelimit<>0 then begin for ii:=0 to changelimit do buffer[ii]:=
-changebuffer[ii];limit:=changelimit;changing:=true;line:=otherline;
-loc:=changelimit;begin writeln(termout);
-write(termout,'! Change file entry did not match');error;end;end{:138};
-phaseone:=false;{:183};{for ii:=0 to 2 do maxtokptr[ii]:=tokptr[ii];}
-{112:}if textlink[0]=0 then begin begin writeln(termout);
-write(termout,'! No output was specified.');end;
-if history=0 then history:=1;end else begin begin writeln(termout);
-write(termout,'Writing the output file');end;{break(termout);}{83:}
-stackptr:=1;bracelevel:=0;curstate.namefield:=0;
-curstate.replfield:=textlink[0];zo:=curstate.replfield mod 3;
-curstate.bytefield:=tokstart[curstate.replfield];
-curstate.endfield:=tokstart[curstate.replfield+3];curstate.modfield:=0;
-{:83};{96:}outstate:=0;outptr:=0;breakptr:=0;semiptr:=0;outbuf[0]:=0;
-line:=1;{:96};sendtheoutput;{98:}breakptr:=outptr;semiptr:=0;
-flushbuffer;if bracelevel<>0 then begin writeln(termout);
-write(termout,'! Program ended at brace level ',bracelevel:1);error;end;
-{:98};begin writeln(termout);write(termout,'Done.');end;end{:112};
-9999:if stringptr>256 then{184:}begin begin writeln(termout);
-write(termout,stringptr-256:1,' strings written to string pool file.');
-end;write(pool,'*');
-for ii:=1 to 9 do begin outbuf[ii]:=poolchecksum mod 10;
-poolchecksum:=poolchecksum div 10;end;
-for ii:=9 downto 1 do write(pool,xchr[48+outbuf[ii]]);writeln(pool);
-end{:184};{[186:]begin writeln(termout);
-write(termout,'Memory usage statistics:');end;begin writeln(termout);
-write(termout,nameptr:1,' names, ',textptr:1,' replacement texts;');end;
-begin writeln(termout);write(termout,byteptr[0]:1);end;
-for wo:=1 to 1 do write(termout,'+',byteptr[wo]:1);
-if phaseone then for ii:=0 to 2 do maxtokptr[ii]:=tokptr[ii];
-write(termout,' bytes, ',maxtokptr[0]:1);
-for ii:=1 to 2 do write(termout,'+',maxtokptr[ii]:1);
-write(termout,' tokens.');[:186];}{187:}
-case history of 0:begin writeln(termout);
-write(termout,'(No errors were found.)');end;1:begin writeln(termout);
-write(termout,'(Did you see the warning message above?)');end;
-2:begin writeln(termout);
-write(termout,'(Pardon me, but I think I spotted something wrong.)');
-end;3:begin writeln(termout);
-write(termout,'(That was a fatal error, my friend.)');end;end{:187};
-end.{:182}
+++ /dev/null
-% Change file for GNU Pascal and Linux
-% (by Don Knuth, 2000; see ../tex-sparc for the prehistory)
-% (I'm no longer keeping the "efficiency" changes; just enuf for TRIP test)
-%
-% Use this file as is to make an INITEX. To get triptex, use the
-% shell script ``ini_to_trip'' and re-TANGLE.
-
-% History:
-% 2000.04.30 first sketch --- untested --- see FIXTHIS for parts not done yet
-
-% NOTE: the module numbers in this change file refer to Volume B.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [0] WEAVE: only print changes
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-\def\botofcontents{\vskip 0pt plus 1fil minus 1.5in}
-@y
-\def\botofcontents{\vskip 0pt plus 1fil minus 1.5in}
-\let\maybe=\iffalse
-\def\title{\TeX82 changes for GNU Pascal}
-\def\glob{13}\def\gglob{20, 26} % these are defined in module 1
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [1.2] banner line
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@d banner=='This is TeX, Version 3.14159' {printed when \TeX\ starts}
-@y
-@d banner=='This is '#27'[33;1mNesTeX'#27'[0m, Version 3.14159 for '#27'[31;1mJava'#27'[0m'
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [1.7] debug..gubed, stat..tats
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@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==@{ {the trip test will use debugging}
-@d gubed==@t@>@}
-@z
-@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==
-@d tats==
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [1.8] init..tini
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@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
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [1.10] othercases, feature of ISO Extended Pascal
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@d othercases == others: {default for cases not listed explicitly}
-@y
-@d othercases == otherwise {default for cases not listed explicitly}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [1.11] compile-time constants
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@!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}
-@!font_max=75; {maximum internal font number; must not exceed |max_quarterword|
- and must be at most |font_base+256|}
-@!font_mem_size=20000; {number of words of |font_info| for all fonts}
-@!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:TEX.POOL ';
- {string of length |file_name_size|; tells where the string pool appears}
-@y
-@!mem_max=300000; {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=5000; {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=79; {width of context lines on terminal error messages}
-@!half_error_line=50; {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=15; {maximum number of input files and error insertions that
- can be going on simultaneously}
-@!font_max=127; {maximum internal font number; must not exceed |max_quarterword|
- and must be at most |font_base+256|}
-@!font_mem_size=40000; {number of words of |font_info| for all fonts}
-@!param_size=60; {maximum number of simultaneous macro parameters}
-@!nest_size=40; {maximum number of semantic levels simultaneously active}
-@!max_strings=30000; {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=100000; {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=6000; {space for saving values outside of current group; must be
- at most |max_halfword|}
-@!trie_size=30000; {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=1024; {file names shouldn't be longer than this}
-@!pool_name='tex.pool';
- {string of length |file_name_size|; the string pool name}
-@.TeXformats@>
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [1.12] sensitive compile-time constants
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@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=2100 {maximum number of control sequences; it should be at most
- about |(mem_max-mem_min)/10|}
-@d hash_prime=1777 {a prime number equal to about 85\pct! of |hash_size|}
-@d hyph_size=307 {another prime; the number of \.{\\hyphenation} exceptions}
-@y
-@d mem_bot=0 {smallest index in the |mem| array dumped by \.{INITEX};
- must not be less than |mem_min|}
-@d mem_top==300000 {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=10000 {maximum number of control sequences; it should be at most
- about |(mem_max-mem_min)/10|}
-@d hash_prime=3443 {a prime number equal to about 85\pct! of |hash_size|}
-@d hyph_size=307 {another prime; the number of \.{\\hyphenation} exceptions}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [2.23] allow any character that we can input to get in
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-for i:=0 to @'37 do xchr[i]:=' ';
-for i:=@'177 to @'377 do xchr[i]:=' ';
-@y
-for i:=0 to @'37 do xchr[i]:=chr(i);
-for i:=@'177 to @'377 do xchr[i]:=chr(i);
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [3.25] file types
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@!eight_bits=0..255; {unsigned one-byte quantity}
-@!alpha_file=packed file of text_char; {files that contain textual data}
-@y
-@!eight_bits=ByteCard; {unsigned one-byte quantity}
-@!alpha_file=t@&e@&x@&t; {files that contain textual data}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [3.27] file opening
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@ 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
-@ An external C procedure, |test_access| is used to check whether or not the
-open will work. It is declared in the ``ext.h'' include file, and it returns
-|true| or |false|. The |Trim(name_of_file)| global holds the file name whose access
-is to be tested.
-The first parameter for |test_access| is the access mode,
-one of |read_access_mode| or |write_access_mode|.
-
-We also implement path searching in |test_access|: its second parameter is
-one of the ``file path'' constants defined below. If |Trim(name_of_file)|
-doesn't start with |'/'| then |test_access| tries prepending pathnames
-from the appropriate path list until success or the end of path list
-is reached.
-On return, |Trim(name_of_file)| contains the original name with the path
-that succeeded (if any) prepended. It is the name used in the various
-open procedures.
-
-Note that |a_open_in| has been redefined to take an additional argument,
-which should be one of the ``file path'' specifiers.
-Since |b_open_in| is only used for \.{TFM} files, and
-|w_open_in| is only used for format files, we don't need a path specifying
-argument for them.
-Path searching is not done for output files.
-
-@d read_access_mode=4 {``read'' mode for |test_access|}
-@d write_access_mode=2 {``write'' mode for |test_access|}
-
-@d no_file_path=0 {no path searching should be done}
-@d input_file_path=1 {path specifier for \.{\\input} files}
-@d read_file_path=2 {path specifier for \.{\\read} files}
-@d font_file_path=3 {path specifier for \.{TFM} files}
-@d format_file_path=4 {path specifier for format files}
-@d pool_file_path=5 {path specifier for the pool file}
-
-@p function a_open_in(var f:alpha_file):boolean;
- {open a text file for input}
-var str:String;
-begin
-reset(f,name_of_file);
-a_open_in:=IOResult=0;
-end;
-
-
-
-@#
-function a_open_out(var f:alpha_file):boolean;
- {open a text file for output}
-var @!ok:boolean;
-begin
- rewrite(f,Trim(name_of_file));
-a_open_out:=true;
-end;
-@#
-function b_open_in(var f:byte_file):boolean;
- {open a binary file for input}
-var @!ok:boolean;
-begin
- reset(f,Trim(name_of_file));
-b_open_in:=true;
-end;
-@#
-function b_open_out(var f:byte_file):boolean;
- {open a binary file for output}
-var @!ok:boolean;
-begin
- rewrite(f,Trim(name_of_file));
-b_open_out:=true;
-end;
-@#
-function w_open_in(var f:word_file):boolean;
- {open a word file for input}
-var @!ok:boolean;
-begin
- reset(f,Trim(name_of_file));
-w_open_in:=true;
-end;
-@#
-function w_open_out(var f:word_file):boolean;
- {open a word file for output}
-var @!ok:boolean;
-begin
- rewrite(f,Trim(name_of_file));
-w_open_out:=true;
-end;
-@z
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [3.32] term_in/out are input,output
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@!term_in:alpha_file; {the terminal as an input file}
-@!term_out:alpha_file; {the terminal as an output file}
-
-@y
-@!{the terminal as an input file}
-
-@z
-
-@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 term_in==Input
-@d term_out==Output
-@d t_open_in==do_nothing
-@d t_open_out==do_nothing
-@z
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [3.34] flushing output
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-these operations can be specified in \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}
-@d wake_up_terminal == do_nothing {cancel the user's cancellation of output}
-@y
-these operations can be specified with Berkeley {\mc UNIX}:
-@^system dependencies@>
-
-@d update_terminal == {nothing necessary on UNIX}
-@d clear_terminal == {nothing necessary on UNIX}
-@d wake_up_terminal == {nothing necessary on UNIX}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [4.38] string data
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@!packed_ASCII_code = 0..255; {elements of |str_pool| array}
-@y
-@!packed_ASCII_code = ByteCard; {elements of |str_pool| array}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [4.51,52,53] make TEX.POOL lowercase in messages
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-else bad_pool('! I can''t read TEX.POOL.')
-@y
-else bad_pool('! I can''t read tex.pool.')
-@z
-@x
-begin if eof(pool_file) then bad_pool('! TEX.POOL has no check sum.');
-@y
-begin if eof(pool_file) then bad_pool('! tex.pool has no check sum.');
-@z
-@x
- bad_pool('! TEX.POOL line doesn''t begin with two digits.');
-@y
- bad_pool('! tex.pool line doesn''t begin with two digits.');
-@z
-@x
- bad_pool('! TEX.POOL check sum doesn''t have nine digits.');
-@y
- bad_pool('! tex.pool check sum doesn''t have nine digits.');
-@z
-@x
-done: if a<>@$ then bad_pool('! TEX.POOL doesn''t match; TANGLE me again.');
-@y
-done: if a<>@$ then bad_pool('! tex.pool doesn''t match; tangle me again.');
-@z
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [8.110] ranges for quarter,half words FIXTHIS
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@d min_quarterword=0 {smallest allowable value in a |quarterword|}
-@d max_quarterword=255 {largest allowable value in a |quarterword|}
-@d min_halfword==0 {smallest allowable value in a |halfword|}
-@d max_halfword==65535 {largest allowable value in a |halfword|}
-@y
-@d min_quarterword=-128 {smallest allowable value in a |quarterword|}
-@d max_quarterword=127 {largest allowable value in a |quarterword|}
-@d min_halfword==-2147483648 {smallest allowable value in a |halfword|}
-@d max_halfword==2147483647 {largest allowable value in a |halfword|}
-@z
-
-@x
-@<Types...@>=
-@!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}
-@y
-@<Types...@>=
-@!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}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [11.165] fix the word "free" so that it doesn't conflict with a runtime proc
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-been included. (You may want to decrease the size of |mem| while you
-@^debugging@>
-are debugging.)
-@y
-been included. (You may want to decrease the size of |mem| while you
-@^debugging@>
-are debugging.)
-
-@d free==free_arr
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [12.186] glue_ratio fix FIXTHIS
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-floating point underflow on the author's computer.
-@^system dependencies@>
-@^dirty \PASCAL@>
-
-@<Display the value of |glue_set(p)|@>=
-g:=float(glue_set(p));
-if (g<>float_constant(0))and(glue_sign(p)<>normal) then
- begin print(", glue set ");
- if glue_sign(p)=shrinking then print("- ");
- if abs(mem[p+glue_offset].int)<@'4000000 then print("?.?")
- else if abs(g)>float_constant(20000) then
- begin if g>float_constant(0) then print_char(">")
- else print("< -");
- print_glue(20000*unity,glue_order(p),0);
- end
- else print_glue(round(unity*g),glue_order(p),0);
-@^real multiplication@>
- end
-@y
-floating point underflow on the author's computer.
-For the {\mc VAX}, the only possible random value that could hurt is
-a reserved value with 1 in the sign bit and 0 for the (excess) exponent.
-Because the sign-plus-exponent is in the middle of the word, the chances
-of this happening are miniscule, and ignored here.
-@^system dependencies@>
-@^dirty \PASCAL@>
-
-@<Display the value of |glue_set(p)|@>=
-g:=float(glue_set(p));
-if (g<>float_constant(0))and(glue_sign(p)<>normal) then
- begin print(", glue set ");
- if glue_sign(p)=shrinking then print("- ");
- if abs(float(glue_set(p)))>20000.0 then
- begin if float(glue_set(p))>0 then print_char(">")
- else print("< -");
- print_glue(20000*unity,glue_order(p),0);
- end
- else print_glue(round(float(glue_set(p))*unity),glue_order(p),0);
-@^real multiplication@>
- end
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [29.513] area and extension rules
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@ 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.
-@^system dependencies@>
-
-We can scan such file names easily by using two global variables that keep track
-of the occurrences of area and extension delimiters:
-
-@<Glob...@>=
-@!area_delimiter:pool_pointer; {the most recent `\.>' or `\.:', if any}
-@!ext_delimiter:pool_pointer; {the relevant `\..', if any}
-@y
-@ The file names we shall deal with for SunOS have the
-following structure: If the name contains `\./', 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.
-@^system dependencies@>
-
-We can scan such file names easily by using two global variables that keep
-track of the occurrences of area and extension delimiters:
-
-@<Glob...@>=
-@!area_delimiter:pool_pointer; {the most recent `\./', if any}
-@!ext_delimiter:pool_pointer; {the most recent `\..', if any}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [29.516] more_name
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
- if (c=">")or(c=":") then
-@y
- if c="/" then
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [29.520] default format
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@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}
-@y
-Under Linux we don't give the area part, instead depending
-on the path searching that will happen during file opening.
-
-@d format_default_length=9 {length of the |TEX_format_default| string}
-@d format_area_length=0 {length of its area part}
-@d format_ext_length=4 {length of its `\.{.fmt}' part}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [29.521] plain format location
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-TEX_format_default:='TeXformats:plain.fmt';
-@y
-TEX_format_default:='plain.fmt';
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [29.524] format file opening: only try once, with path search
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
- 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);
- if w_open_in(fmt_file) then goto found;
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [29.525] make_name_string
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-which simply makes a \TeX\ string from the value of |name_of_file|, should
-ideally be changed to deduce the full name of file~|f|, which is the file
-most recently opened, if it is possible to do this in a \PASCAL\ program.
-@^system dependencies@>
-
-This routine might be called after string memory has overflowed, hence
-we dare not use `|str_room|'.
-
-@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(xord[name_of_file[k]]);
- make_name_string:=make_string;
- end;
-end;
-@y
-which simply makes a \TeX\ string from the value of |name_of_file|, should
-ideally be changed to deduce the full name of file~|f|, which is the file
-most recently opened, if it is possible to do this in a \PASCAL\ program.
-With the Berkeley {\mc UNIX} version, we know that |name_of_file|
-contains |name_of_file| prepended with the directory name that was found
-by path searching.
-If |name_of_file| starts with |'./'|, we don't use that part of the
-name, since {\mc UNIX} users understand that.
-@^system dependencies@>
-
-This routine might be called after string memory has overflowed, hence
-we dare not use `|str_room|'.
-
-@p function make_name_string:str_number;
-var k,@!kstart:1..file_name_size; {index into |name_of_file|}
-begin
-k:=1;
-while (k<file_name_size) and (xord[name_of_file[k]]<>" ") do
- incr(k);
-name_length:=k-1; {the real |name_length|}
-if (pool_ptr+name_length>pool_size)or(str_ptr=max_strings)or
- (cur_length>0) then
- make_name_string:="?"
-else begin
- if (xord[name_of_file[1]]=".") and (xord[name_of_file[2]]="/") then
- kstart:=3
- else
- kstart:=1;
- for k:=kstart to name_length do append_char(xord[name_of_file[k]]);
- make_name_string:=make_string;
- end
-end;
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% [30.563] opening tfm file: now path searching is done
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% Set temp_int to value of first byte
-@x
-@ @<Open |tfm_file| for input@>=
-file_opened:=false;
-if aire="" then pack_file_name(nom,TEX_font_area,".tfm")
-else pack_file_name(nom,aire,".tfm");
-if not b_open_in(tfm_file) then abort;
-file_opened:=true
-@y
-@ Here we have to ``prime the pump'' for the |temp_int| trick explained below.
-
- @<Open |tfm_file| for input@>=
-file_opened:=false;
-pack_file_name(nom,aire,".tfm");
-if not b_open_in(tfm_file) then abort;
-begin
- var temp_int:integer;
- temp_int:=tfm_file^;
- if temp_int<0 then temp_int:=temp_int+256;
-end;
-file_opened:=true
-@z
-
projects / nestedvm.git / commitdiff