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#
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# Parse.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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# maintain parse configurations
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#
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# Interface
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# ---------
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# new() : A new Parse object
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# addtag(name,start,text,end,$object) : Add a new tag
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# addgrouptags() : add <Group> tag functionality
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# addignoretags() : add <ignore> tag functionality
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# parse(filename,[streamhandle], [streamexcludetag]) :
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# parse the given file - turn on the stream
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# function of the switcher if a filehandle
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# supplied as a second argument
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# line() : return the current linenumber in the file
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# tagstartline() : return the linenumber of the last tag opening
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# includeparse(Parse) : include the settings from another parse object
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# tags() : return list of defined tags
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# cleartags() : clear of all tags
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# opencontext(name) : open a parse context
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# closecontext(name) : close a parse context
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# includecontext(name) : Process when in a given context
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# excludecontext(name) : No Processing when given context
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# contexttag(tagname) : Register the tagname as one able to change context
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# if not registerd - the close tag will be ignored
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# too if outside of the specified context!
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package ActiveDoc::Parse;
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require 5.004;
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use ActiveDoc::Switcher;
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use ActiveDoc::TagContainer;
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use ActiveDoc::GroupChecker;
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sub new {
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my $class=shift;
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$self={};
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bless $self, $class;
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$self->init();
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return $self;
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}
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sub init {
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my $self=shift;
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$self->{gc}=GroupChecker->new();
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$self->{gc}->include("all");
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$self->{tags}=ActiveDoc::TagContainer->new();
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}
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sub parse {
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my $self=shift;
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my $file=shift;
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# basic setup of switcher
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$self->{switch}=ActiveDoc::Switcher->new($file);
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$self->{switch}->usegroupchecker($self->{gc});
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$self->{switch}->usetags($self->{tags});
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# do we need to switch on the streamer?
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if ( @_ ) {
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$fh=shift;
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$self->{switch}->stream($fh);
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foreach $tag ( @_ ) {
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$self->{switch}->streamexclude($tag);
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}
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}
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# -- parse
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$self->{switch}->parse();
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undef $self->{switch};
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}
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sub line {
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my $self=shift;
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if ( defined $self->{switch} ) {
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return $self->{switch}->line();
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}
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return undef;
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}
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sub tagstartline {
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my $self=shift;
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if ( defined $self->{switch} ) {
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return $self->{switch}->tagstartline();
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}
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return undef;
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}
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sub includeparse {
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my $self=shift;
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my $obj=shift;
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my $tag;
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# copy the tags from the remote parse object
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foreach $tag ( $obj->tags() ) {
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$self->addtag($tag,$obj->{tags}->tagsettings($tag));
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}
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# now the group settings
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}
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sub addtag {
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my $self=shift;
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$self->{tags}->addtag(@_);
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}
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sub addgrouptags {
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my $self=shift;
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$self->{tags}->addtag("Group", \&Group_Start,$self,
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"", $self, \&Group_End, $self);
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$self->{tags}->setgrouptag("Group");
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}
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sub addignoretags {
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my $self=shift;
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$self->{gc}->exclude("ignore");
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$self->{tags}->addtag("Ignore", \&Ignore_Start, $self,
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"",$self, \&Ignore_End,$self);
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$self->{tags}->setgrouptag("Ignore");
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}
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sub contexttag {
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my $self=shift;
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$self->{tags}->setgrouptag(shift);
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}
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sub opencontext {
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my $self=shift;
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$self->{gc}->opencontext(shift);
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}
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sub closecontext {
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my $self=shift;
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$self->{gc}->closecontext(shift);
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}
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sub includecontext {
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my $self=shift;
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my $name=shift;
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$self->{gc}->unexclude($name);
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$self->{gc}->include($name);
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}
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sub excludecontext {
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my $self=shift;
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my $name=shift;
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$self->{gc}->exclude($name);
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$self->{gc}->uninclude($name);
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}
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sub cleartags {
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my $self=shift;
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$self->{tags}->cleartags();
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}
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sub tags {
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my $self=shift;
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return $self->{tags}->tags();
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}
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# --------- Basic Group Related Tags ---------------------------------
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sub Group_Start {
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my $self=shift;
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my $name=shift;
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my $vars=shift;
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my $lastgp;
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$lastgp="group::".$$vars{name};
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$self->{switch}->checkparam($name, 'name');
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$self->{gc}->opencontext("group::".$$vars{name});
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}
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sub Group_End {
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my $self=shift;
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my $name=shift;
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my $lastgp;
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$self->{gc}->closelastcontext("group");
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}
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sub Ignore_Start {
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my $self=shift;
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my $name=shift;
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$self->{gc}->opencontext("ignore");
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}
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sub Ignore_End {
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my $self=shift;
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$self->{gc}->closecontext("ignore");
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}
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