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#
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# SimpleDoc.pm
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#
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# Originally Written by Christopher Williams
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#
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# Description
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# -----------
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# Simple multi parsing functionality and group manipulation
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#
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# Interface
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# ---------
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# new([DocVersionTag]) : A new ActiveDoc object. You can also
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# specify an alternative doc version tag
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# filetoparse([filename]) : Set/Return the filename of document
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# newparse(parselabel) : Create a new parse type
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# parse(parselabel) : Parse the document file for the given parse level
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# checktag(tagname, hashref, param) : check for existence of param in
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# hashref from a tag call
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# currentparser() : return the current parser object
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# currentparsename([name]) : get/set current parse name
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#
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# filenameref(string) : A string to refer to the file in parse error messages
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# etc. Default is filetoparse
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# --------------- Error handling routines ---------------
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# verbose(string) : Print string in verbosity mode
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# verbosity(0|1) : verbosity off|on
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# parseerror(string) : print error and associate with line number etc.
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# error(string) : handle an error
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package ActiveDoc::SimpleDoc;
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require 5.004;
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use ActiveDoc::Parse;
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sub new()
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{
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my $class=shift;
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$self={};
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bless $self, $class;
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return $self;
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}
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sub filenameref()
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{
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my $self=shift;
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if ( @_ )
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{
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$self->{filenameref}=shift;
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}
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return (defined $self->{filenameref})?$self->{filenameref} : $self->filetoparse();
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}
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sub verbosity()
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{
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my $self=shift;
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$self->{verbose}=shift;
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}
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sub verbose()
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{
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my $self=shift;
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my $string=shift;
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if ( $self->{verbose} )
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{
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print ">".ref($self)."($self) : \n->".$string."\n";
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}
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}
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# ----- parse related routines --------------
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sub parse()
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{
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my $self=shift;
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$parselabel=shift;
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my $fhead=shift || "";
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my $ftail=shift || "";
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my $file=$self->filetoparse();
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if ( -f $file )
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{
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if ( exists $self->{parsers}{$parselabel} )
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{
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$self->verbose("Parsing $parselabel in file $file");
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$self->{currentparsename}=$parselabel;
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$self->{currentparser}=$self->{parsers}{$parselabel};
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# Parse and store the returned data in content (only for Streams style):
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$self->{parsers}{$parselabel}->filehead($fhead);
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$self->{parsers}{$parselabel}->filetail($ftail);
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$self->{content} = $self->{parsers}{$parselabel}->parse($file,@_)->data();
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delete $self->{currentparser};
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$self->{currentparsename}="";
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$self->verbose("Parse $parselabel Complete");
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}
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}
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else
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{
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$self->error("Cannot parse \"$parselabel\" - file $file not known");
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}
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}
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sub parsefilelist()
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{
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my $self=shift;
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my $parselabel=shift;
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my ($filenames)=@_;
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if ( exists $self->{parsers}{$parselabel} )
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{
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$self->verbose("ParsingFileList: Label = $parselabel (files = ".join(",",@$filenames)." ");
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$self->{currentparsename}=$parselabel;
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$self->{currentparser}=$self->{parsers}{$parselabel};
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$self->{parsers}{$parselabel}->parsefilelist($filenames);
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delete $self->{currentparser};
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$self->{currentparsename}="";
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$self->verbose("ParseFileList $parselabel Complete");
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}
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else
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{
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$self->error("Cannot parse \"$parselabel\" - Unknown parser!!");
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}
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}
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sub currentparsename()
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{
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my $self=shift;
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@_?$self->{currentparsename}=shift
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:(defined $self->{currentparsename}?$self->{currentparsename}:"");
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}
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sub currentparser()
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{
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my $self=shift;
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return $self->{currentparser};
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}
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sub newparse()
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{
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my $self=shift;
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my $parselabel=shift;
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my $dataclass=shift;
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my $parse_style=shift;
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$dataclass ||= "ParsedDoc";
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$parse_style ||= 'Objects';
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$self->{parsers}{$parselabel}=ActiveDoc::Parse->new($dataclass,$parse_style,shift,shift);
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}
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sub filetoparse()
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{
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my $self=shift;
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if ( @_ )
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{
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$self->{filename}=shift;
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}
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return $self->{filename};
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}
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sub content()
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{
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my $self=shift;
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return $self->{content};
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}
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# -------- Error Handling and Error services --------------
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sub error()
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{
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my $self=shift;
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my $string=shift;
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die $string."\n";
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}
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sub parseerror
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{
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my $self=shift;
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my $string=shift;
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if ( $self->currentparsename() eq "" )
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{
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$self->error("Error In file ".$self->filenameref."\n".$string);
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}
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else
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{
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$line=$self->line();
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print "Parse Error in ".$self->filenameref().", line ".
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$line."\n";
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print $string."\n";
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exit;
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}
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}
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sub checktag()
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{
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my $self=shift;
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my $tagname=shift;
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my $hashref=shift;
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my $param=shift;
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if ( ! exists $$hashref{$param} )
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{
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$self->parseerror("Incomplete Tag <$tagname> : $param required");
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}
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}
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# -- dummy tag routines
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sub doc()
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{
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my $self=shift;
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}
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sub doc_()
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{
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my $self=shift;
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}
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1;
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