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grg2tex.red
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grg2tex.red
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% To convert GRG log file "filein" into LaTeX file "fileout.tex" execute:
%
% grg2tex("filein","fileout.tex");
%
% This code is actually logutil.red with infinitesemal changes.
% All credits to Herbert Melenk.
module grg2tex;
% Author: Herbert Melenk <[email protected]>.
% log_latex(<infile>,<outfile>);
%
% Transform a REDUCE log file <infile> from XR or Windows with
% output in type setting style to a LATEX source file <outfile>.
fluid '(texstate!* char!-texon!* char!-texoff!* char!-null!*
old!-line!* );
char!-texon!* := '!$ $ %===ZW===
char!-texoff!* := '!$ $ %===ZW===
char!-null!* := int2id 0$
symbolic procedure grg2tex(din,dout); %===ZW===
begin scalar fin,fout,oldfin,oldfout,w;
fin:=open(din,'input); fout:=open(dout,'output);
oldfin:=rds fin; oldfout:=wrs fout;
w:=errorset('(log2latex1),t,t) where !*lower=nil,!*raise=nil;
wrs oldfout; rds oldfin;
close fout; close fin;
end;
symbolic operator grg2tex; %===ZW===
fluid '(l2xprologue!* l2xepilogue!*);
l2xprologue!* :='(
"\documentstyle{article}"
"\setlength{\parindent}{0cm}"
"\sloppy"
"\begin{document}"
);
l2xepilogue!* :='(
"\end{document}"
);
symbolic procedure log2latex1();
begin scalar texstate!*,l,w,c;
integer n;
old!-line!*:=nil;
for each l in l2xprologue!* do prin2t l;
a:
l:=read!-line();
if car l = !$eof!$ then goto done;
if car l = 'tex then
<<
l:=transform2tex cdr l;
mathon();
c:=nil; n:=0;
for each x in l do
<<n:=n+1;
if n>60 and x='!\ and c neq '!\ then <<terpri(); n:=0>>;
prin2 x; c:=x;
>>;
mathoff();
>>
else
<<texton();
for each x in cdr l do prin2 x;
terpri();
>>;
goto a;
done:
if texstate!*=0 then textoff() else
if texstate!*=1 then mathoff();
for each l in l2xepilogue!* do prin2t l;
end;
symbolic procedure transform2tex ll;
begin scalar w,l;
% l2xspace!*:=0;
l := ll;
while l do
<<
if (w:=l2xmatch(l,'(!\ !>))) then l2xsymbtab(l,w) else
if (w:=l2xmatch(l,'(!\ !s !y !m !b !{))) then l2xsymb(l,w) else
if (w:=l2xmatch(l,'(!\ s y m b !{))) then l2xsymb(l,w);
l:=cdr l;
>>;
return ll;
end;
symbolic procedure l2xmatch(s,p);
if null p then s else
if null s then nil else
if car s eq car p then l2xmatch(cdr s,cdr p) else nil;
symbolic procedure l2xsymbtab(l,w);
<<w:=append(explode2 " ",cddr l); %===ZW===
car l:=car w; cdr l:=cdr w;
l>>;
fluid '(tex!-symbols!*);
tex!-symbols!* :=
'(( 182 . "\partial")
( 198 . "\emptyset")
( 216 . "\neg")
( 163 . "\leq")
( 179 . "\geq")
( 185 . "\not=")
( 199 . "\bigcap")
( 200 . "\bigcup")
( 206 . "\in")
( 217 . "\bigwedge")
( 218 . "\bigvee")
( 239 . "\vert")
( 124 . "\vert")
( 222 . "\Rightarrow")
( 34 . "\forall")
( 71 . "\Gamma")
( 226 . "\dag") % shoud have been (R)
( 227 . "\copyright")
( 32 . "\quad")
);
symbolic procedure l2xsymb(l1,l2);
% convert \symb{nnn} to tex symbol.
begin scalar w;integer n;
while digit car l2 do
<<n:=n*10 + id2int car l2 - id2int '!0;
l2 := cdr l2
>>;
w := assoc(n,tex!-symbols!*);
if null w then rederr {"symbol not konw:",n};
l2 := append (explode2 cdr w,'! .cdr l2);
car l1 := car l2; cdr l1 := cdr l2;
end;
symbolic procedure read!-line();
begin scalar w,l;
l:=read!-line0();
if car l=!$eof!$ then return l;
if car l = char!-texon!* then
return
begin
l:=cdr l;
a:
w:=member(char!-texoff!*,l) or member(!$eof!$,l);
if w then
<<old!-line!*:=cdr w; car w:= '! ;
cdr w:=nil; return 'tex . l>>;
l:=append(l,read!-line0());
go to a;
end;
w:=member(char!-texon!*,l);
if w then
<<old!-line!* := car w . cdr w; car w:= '! >>;
return nil.l;
end;
symbolic procedure read!-line0();
begin scalar w,c;
if old!-line!* then
<<w:=old!-line!*; old!-line!*:=nil; return w>>;
while not ((c:=readch())=!$eol!$) and not(c=!$eof!$) do
if id2int c > 3 then w:=c.w; % for ctrlA, ctrl B
if c=!$eof!$ then return {c};
w:=reversip w;
return w or read!-line0();
end;
symbolic procedure mathon();
<< textoff(); prin2 "$"; texstate!* :=1; >>;
symbolic procedure mathoff();
<< if texstate!*=1 then prin2t "$\\"; texstate!* :=nil>>;
symbolic procedure texton();
if not(texstate!*=0) then
<<mathoff(); prin2t "\begin{verbatim}"; texstate!* := 0>>;
symbolic procedure textoff();
if texstate!*=0 then
<<prin2t "\end{verbatim}"; texstate!*:=nil>>;
endmodule;
end;