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unit files;
{ Open and close files, interpret command line, do input, do most output}
interface uses globals, multfile;
procedure readParagraph (var P: paragraph; var no: line_nos;
var L: paragraph_index0);
function styleFileFound: boolean;
procedure processOption(j: char);
procedure OpenFiles;
procedure CloseFiles;
procedure putLine (line: string);
procedure put(line: string; putspace: boolean);
procedure TeXtype2 (s: string);
function endOfInfile: boolean;
implementation uses control, strings, utility;
const param_leader = '-';
stylefilename: string = 'mtxstyle.txt';
var teststyle: integer;
function endOfInfile: boolean;
begin endOfInfile:=eofAll; end;
procedure putTeXlines(s: string);
var p: integer;
begin p:=pos1(#10,s);
while p>0 do
begin
putLine('\'+substr(s,1,p-1)+'\');
predelete(s,p);
p:=pos1(#10,s)
end;
if length(s)>0 then putLine('\'+s+'\');
end;
procedure TeXtype2 (s: string);
begin
if pmx_preamble_done then
if s[1]='%' then putLine(s)
else if first_paragraph then putTeXLines(s)
else putLine('\\'+s+'\')
else putLine(s);
end;
procedure putLine (line: string);
begin if outlen+length(line) > pmxlinelength-1 then writeln(outfile);
writeln(outfile,line); outlen:=0;
end;
procedure put(line: string; putspace: boolean);
var l: integer;
begin l:=length(line);
if l>pmxlinelength then error('Item longer than PMX line length',print);
if outlen+l > pmxlinelength-1 then
begin putLine(''); put(line,false) end
else begin if putspace and (outlen>0) and (line[1]<>' ') then
line:=' '+line;
write(outfile,line); inc(outlen,l);
end
end;
function styleFileFound: boolean;
begin styleFileFound := teststyle<>0; end;
procedure helpmessage;
begin
writeln('Usage: prepmx [-bcfnhimtuvwDH0123456789] MTXFILE [TEXDIR] [STYLEFILE]')
end;
procedure bighelpmessage;
begin helpmessage; writeln;
writeln('MTXFILE: name of .mtx file without its extension');
writeln('TEXDIR: directory where the TeX file made by PMX goes, default is ./');
writeln('STYLEFILE: name of a file containing style definitions. Default is');
writeln(' mtxstyle.txt. This feature is now deprecated; use Include: STYLEFILE');
writeln(' in the preamble of the .mtx file instead.');
writeln('Options: (can also be entered separately: -b -c ...)');
writeln(' -b: disable unbeamVocal');
writeln(' -c: disable doChords');
writeln(' -f: enable solfaNoteNames');
writeln(' -h: display this message and quit');
writeln(' -i: enable ignoreErrors');
writeln(' -m: disable doLyrics');
writeln(' -n: enable instrumentNames');
writeln(' -t: disable doUptext');
writeln(' -u: disable uptextOnRests');
writeln(' -v: enable beVerbose');
writeln(' -w: enable pedanticWarnings');
writeln(' -D: enable debugMode');
writeln(' -0123456789: select Case');
writeln(' -H: print enabled status of all options');
writeln('All the above, and some other, options can be enabled or disabled');
writeln(' in the preamble. What you do there overrides what you do here.')
end;
procedure processOption(j: char);
begin case j of
'b': setFeature('unbeamVocal',false);
'c': setFeature('doChords',false);
'f': setFeature('solfaNoteNames',true);
'h': begin bighelpmessage; halt(255) end;
'i': setFeature('ignoreErrors',true);
'm': setFeature('doLyrics',false);
'n': setFeature('instrumentNames',true);
't': setFeature('doUptext',false);
'u': setFeature('uptextOnRests',false);
'v': setFeature('beVerbose',true);
'w': setFeature('pedanticWarnings',true);
'D': setFeature('debugMode',true);
'0'..'9': choice:=j;
'H': printFeatures(true);
else write(j); error(': invalid option',not print);
end;
end;
procedure OpenFiles;
var i, j, l, fileid, testin: integer;
infilename, outfilename, basename, param, ext: string;
procedure checkExistingFile;
var tryfile: file;
begin
{$I-}
assign(tryfile,basename); reset(tryfile); testin := ioresult;
{$I+}
if testin<>0 then exit else close(tryfile);
writeln('There exists a file named ',basename,'. I am treating this');
error(' as a fatal error unless you specify -i',not print);
end;
begin
fileid:=0; line_no:=0; paragraph_no:=0;
for i:=1 to ParamCount do
begin param:=ParamStr(i);
if param[1]=param_leader then
for j:=2 to length(param) do processOption(param[j])
else if fileid=0 then fileid:=i
else if texdir='' then texdir:=param
else stylefilename:=param;
end;
if fileid=0 then
begin helpmessage; writeln('Try "prepmx -h" for more information.'); halt(255) end
else basename:=paramstr(fileid);
l:=length(basename);
if (l>4) and (basename[l-3]='.') then
begin ext:=substr(basename,l-2,3); toUpper(ext); if ext='MTX' then
begin warning('.mtx extension deleted from basename',not print);
shorten(basename,l-4);
end;
end;
if pos1('.',basename)>0 then checkExistingFile;
infilename := basename+'.mtx'; outfilename := basename+'.pmx';
{$I-}
pushFile(infilename);
assign(outfile,outfilename); rewrite(outfile);
assign(stylefile,stylefilename); reset(stylefile); teststyle := ioresult;
if (teststyle<>0) and (stylefilename<>'mtxstyle.txt') then
writeln('Can''t read ',stylefilename);
{$I+}
if fileError then fatalError('Input file '+infilename+' not found');
outfile_open := true; writeln('Writing to ',basename,'.pmx');
end;
procedure CloseFiles;
begin close(outfile); closeAll; if teststyle=0 then close(stylefile);
end;
procedure readParagraph (var P: paragraph; var no: line_nos;
var L: paragraph_index0);
var another: boolean;
filename, buffer: string;
begin
L:=0; buffer:=readData; line_no:=currentLineNo;
if isEmpty(buffer) then exit;
if debugMode then writeln('>>>> ',buffer);
inc(paragraph_no);
{ Handle directives affecting the processing of the input file }
repeat another:=false;
if startsWithIgnoreCase(buffer,'SUSPEND') then
begin ignore_input:=true; another:=true; if beVerbose then
writeln('-->> Suspending input file ',currentFilename,
' at line ', line_no);
end;
if startsWithIgnoreCase(buffer,'RESUME') then
begin ignore_input:=false; another:=true; if beVerbose then
writeln('-->> Resuming input file ',currentFilename,
' at line ', line_no);
end;
if startsWithIgnoreCase(buffer,'INCLUDE:') then
begin predelete(buffer,8); filename:=nextWord(buffer,' ',' ');
pushfile(filename); another:=true;
end;
if another then begin buffer:=readLine; line_no:=currentLineNo; end;
until not another;
{ Normal paragraph input}
repeat
if L<lines_in_paragraph then
begin inc(L); P[L]:=buffer; buffer:=''; no[L]:=line_no;
end
else warning('Paragraph too long: skipping line',not print);
buffer:=readLine; line_no := currentLineNo;
if debugMode then writeln(line_no,' >> ', buffer);
until isEmpty(buffer);
skipBlanks; { needed to identify final paragraph }
end;
end.
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