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Comparing COMP/SCRAM/src/ActiveDoc/ActiveDoc.pm (file contents):
Revision 1.22 by williamc, Mon Feb 21 17:36:33 2000 UTC vs.
Revision 1.25.2.1.2.3 by williamc, Mon Aug 21 15:32:21 2000 UTC

# Line 7 | Line 7
7   #
8   # Interface
9   # ---------
10 < # new(ActiveConfig[,options])           : A new ActiveDoc object
10 > # new(cache,dbstore)            : A new ActiveDoc object
11   # url()         : Return/set the docs url - essential
12   # file()        : Return the local filename of document
13   # ProcessFile() : Return the filename of PreProcessed document
14   #
15 # parse(parselabel): Parse the document file for the given parse level
15   # parent()         : return the object ref of the calling parent
17 # newparse(parselabel) : Create a new parse type
18 # addtag(parselabel,tagname,start,obj,text,obj,end,obj)
19 #                               : Add tags to the parse given by label
20 # checktag(tagname, hashref, param) : check for existence of param in
21 #                                       hashref from a tag call
22 # includeparse(local_parsename, objparsename, activedoc) : copy the parse from
23 #                                                       one object to another
24 # currentparsename([name]) : get/set current parse name
16   # getfile(url)  : get a processedfile object given a url
17   # activatedoc(url) : Return the object ref for a doc described by the given url
27 #                    -- any parse called "init" will also be run
28 # config([ActiveConfig]) : Set up/return Configuration for the document
29 # basequery([ActiveConfig]) : Set up/return UserQuery for the doc
30 # copydocconfig(ActiveDoc) : Copy the basic configuration from the ActiveDoc
31 # copydocquery(ActiveDoc) : Copy the basicquery from the ActiveDoc
32 # userinterface()       : Return the defaullt userinterface
33 # option(var)           : return the value of the option var ( or undef )
34 # requestoption("message") : Ask the user to supply a value for an option
35 #                            if it dosnt already exist
36 # askuser(Query)        : send a query object to the userinterface
37 # verbose(string)       : Print string in verbosity mode
18   #
19   # -- error methods --
20   # error(string)       : Report an general error to the user
21   # parseerror(string)  : Report an error during parsing a file
22 < # line()              : Return the current line number of the document
23 < #                       and the ProcessedFileObj it is in
22 > # line([linenumber])     : Return the line number of the document
23 > #                       and the ProcessedFileObj it is in corresponding to the
24 > #                       supplied number of the expanded document
25 > #                       If no number supplied - the currentparse number will be #                       used
26  
27   package ActiveDoc::ActiveDoc;
28   require 5.004;
29 < use ActiveDoc::Parse;
48 < use ActiveDoc::ActiveConfig;
29 > use ActiveDoc::SimpleURLDoc;
30   use ActiveDoc::PreProcessedFile;
31 < use ObjectUtilities::StorableObject;
51 < use URL::URLhandler;
31 > use Utilities::Verbose;
32  
33 < @ISA = qw(ObjectUtilities::StorableObject);
33 > @ISA = qw(ActiveDoc::SimpleURLDoc Utilities::Verbose);
34  
35   sub new {
36          my $class=shift;
37 <        $self={};
37 >        my $self={};
38          bless $self, $class;
39 <        $self->config(shift);
40 <
41 <        # have some override options been passed
42 <        if ( @_ ) {
63 <           $self->basequery(shift);
64 <        }
65 <        else {
66 <           # --- is there a starter document?
67 <           my $basedoc=$self->config()->basedoc();
68 <           if ( defined $basedoc ) {
69 <             $self->copydocquery($basedoc);
70 <             $self->verbose("Initialising from $basedoc");
71 <           }
72 <           else {
73 <             $self->error("ActiveDoc Error : No base doc found");
74 <           }
75 <        }
76 <        $self->verbose("New ActiveDoc (".ref($self).") Created");
77 <        $self->_init2();
78 < }
79 <
80 < sub _init2 {
81 <
82 <        my $self=shift;
83 <        # A URL handler per document
84 <        $self->{urlhandler}=URL::URLhandler->new($self->config()->cache());
85 <
86 <        # A default UserInterface
87 <        $self->{userinterface}=ActiveDoc::SimpleUserInterface->new();
88 <        $self->init(@_);
39 >        $self->cache(shift);
40 >        $self->{dbstore}=shift;
41 >        $self->_initdoc(@_);
42 > #       $self->{switch}=ActiveDoc::SimpleURLDoc->new($self->{cache});
43          return $self;
90
91 }
92
93 sub verbose {
94        my $self=shift;
95        my $string=shift;
96
97        if ( $self->option('verbose_all') ||
98                        $self->option('verbose_'.ref($self)) ) {
99          print ">".ref($self)."($self) : \n->".$string."\n";
100        }
101 }
102
103 # ----- parse related routines --------------
104 sub parse {
105        my $self=shift;
106        $parselabel=shift;
107
108        my $file=$self->ProcessFile();
109        if ( $file ) {
110          if ( exists $self->{parsers}{$parselabel} ) {
111            $self->verbose("Parsing $parselabel in file $file");
112            $self->{currentparsename}=$parselabel;
113            $self->{currentparser}=$self->{parsers}{$parselabel};
114            $self->{parsers}{$parselabel}->parse($file,@_);
115            delete $self->{currentparser};
116            $self->{currentparsename}="";
117            $self->verbose("Parse $parselabel Complete");
118          }
119        }
120        else {
121          print "Cannot parse - file not known\n";
122        }
123 }
124
125 sub currentparsename {
126        my $self=shift;
127        @_?$self->{currentparsename}=shift
128          :$self->{currentparsename};
129 }
130
131 sub newparse {
132        my $self=shift;
133        my $parselabel=shift;
134
135        $self->{parsers}{$parselabel}=ActiveDoc::Parse->new();
136        $self->{parsers}{$parselabel}->addignoretags();
137        $self->{parsers}{$parselabel}->addgrouptags();
138 }
139
140 sub cleartags {
141        my $self=shift;
142        my $parselabel=shift;
143
144        $self->{parsers}{$parselabel}->cleartags();
145 }
146
147
148 sub includeparse {
149        my $self=shift;
150        my $parselabel=shift;
151        my $remoteparselabel=shift;
152        my $activedoc=shift;
153
154        # Some error trapping
155        if ( ! exists $self->{parsers}{$parselabel} ) {
156          $self->error("Unknown local parse name specified");
157        }
158        if ( ! exists $activedoc->{parsers}{$remoteparselabel} ) {
159          $self->error("Unknown parse name specified in remote obj $activedoc");
160        }
161
162        #
163        my $rp=$activedoc->{parsers}{$remoteparselabel};
164        $self->{parsers}{$parselabel}->includeparse($rp);
165 }
166
167 sub addtag {
168        my $self=shift;
169        my $parselabel=shift;
170        if ( $#_ != 6 ) {
171                $self->error("Incorrect addtags specification\n".
172                                "called with :\n@_ \n");
173        }
174        $self->{parsers}{$parselabel}->addtag(@_);
175 }
176
177 sub addurltags {
178        my $self=shift;
179        my $parselabel=shift;
180        
181        $self->{parsers}{$parselabel}->
182                addtag("Base", \&Base_start, $self, "", $self,
183                        \&Base_end, $self);
44   }
45  
46   sub url {
# Line 190 | Line 50 | sub url {
50                  $self->{File}=$self->getfile(shift);
51                  $self->verbose("url downloaded to $self->{File}");
52          }
53 <        $self->{File}->url();
54 < }
195 <
196 < sub copydocconfig {
197 <        my $self=shift;
198 <        my $ActiveDoc=shift;
199 <        
200 <        $self->config($ActiveDoc->config());
201 <
202 < }
203 <
204 < sub copydocquery {
205 <        my $self=shift;
206 <        my $ActiveDoc=shift;
207 <
208 <        if ( defined $ActiveDoc->basequery() ) {
209 <          $self->basequery($ActiveDoc->basequery());
210 <        }
211 <        else {
212 <          $self->error("Cannot copy basequery - undefined");
213 <        }
214 < }
215 <
216 < sub config {
217 <        my $self=shift;
218 <        @_?$self->{ActiveConfig}=shift
219 <           : $self->{ActiveConfig};
220 < }
221 <
222 < sub basequery {
223 <        my $self=shift;
224 <        @_?$self->{Query}=shift
225 <           :$self->{Query};
226 < }
227 <
228 < sub option {
229 <        my $self=shift;
230 <        my $param=shift;
231 <        if ( defined $self->basequery()) {
232 <                return $self->basequery()->getparam($param);
233 <        }
234 <        else {
235 <                return $undef;
236 <        }
237 < }
238 <
239 < sub requestoption {
240 <        my $self=shift;
241 <        my $param=shift;
242 <        my $string=shift;
243 <
244 <        my $par=undef;
245 <        if ( defined $self->basequery()) {
246 <        $par=$self->basequery()->getparam($param);
247 <        while ( ! defined $par ) {
248 <          $self->basequery()->querytype( $param, "basic");
249 <          $self->basequery()->querymessage( $param, $string);
250 <          $self->userinterface()->askuser($self->basequery());
251 <          $par=$self->basequery()->getparam($param);
252 <        }
53 >        if ( defined $self->{File} ) {
54 >          return $self->{File}->url();
55          }
56 <        return $par;
255 < }
256 <
257 < sub askuser {
258 <        my $self=shift;
259 <        return $self->userinterface()->askuser(@_);
56 >        else { return "undefined"; }
57   }
58  
59   sub getfile {
# Line 265 | Line 62 | sub getfile {
62  
63          my $fileref;
64          my ($url, $file);
65 <        if ( (defined ($it=$self->option('url_update'))) &&
269 <                ( $it eq "1" || $origurl=~/^$it/ )) {
65 >        if ( 0 ) {
66               $self->verbose("Forced download of $origurl");
67 <             ($url, $file)=$self->{urlhandler}->download($origurl);
67 >             ($url, $file)=$self->urldownload($origurl);
68          }
69          else {
70             $self->verbose("Attempting to get $origurl");
71 <           ($url, $file)=$self->{urlhandler}->get($origurl);
71 >           ($url, $file)=$self->urlget($origurl);
72          }
73          # do we already have an appropriate object?
74 <        ($fileref)=$self->config()->find($url);
279 <        #undef $fileref;
74 >        ($fileref)=$self->{dbstore}->find($url);
75          if (  defined $fileref ) {
76           $self->verbose("Found $url in database");
77           $fileref->update();
# Line 285 | Line 80 | sub getfile {
80           if ( $file eq "" ) {
81             $self->parseerror("Unable to get $origurl");
82           }
83 <         #-- set up a new preprocess file
83 >         # -- set up a new preprocess file
84           $self->verbose("Making a new preprocessed file $url");
85 <         $fileref=ActiveDoc::PreProcessedFile->new($self->config());
85 >         $fileref=ActiveDoc::PreProcessedFile->new($self->{cache},
86 >                                                        $self->{dbstore});
87           $fileref->url($url);
88           $fileref->update();
89          }
# Line 299 | Line 95 | sub activatedoc {
95          my $url=shift;
96  
97          # first get a preprocessed copy of the file
98 < #       my $fileob=$self->getfile($url);
98 >        my $fileobj=$self->getfile($url);
99  
100 <        # now parse it for the <DocType> tag
101 <        my $tempdoc=ActiveDoc::ActiveDoc->new($self->config());
102 <        $tempdoc->{urlhandler}=$self->{urlhandler};
103 <        my $fullurl=$tempdoc->url($url);
104 <        $url=$fullurl;
105 <        $tempdoc->{doctypefound}=0;
106 <        $tempdoc->newparse("doctype");
107 <        $tempdoc->addtag("doctype","Doc", \&Doc_Start, $tempdoc,
312 <                                          "", $tempdoc, "", $tempdoc);
313 <        $tempdoc->parse("doctype");
314 <
315 <        if ( ! defined $tempdoc->{docobject} ) {
316 <          print "No <Doc type=> Specified in ".$url."\n";
317 <          exit 1;
100 >        # now parse it for the <Doc> tag
101 >        my $tempdoc=ActiveDoc::SimpleURLDoc->new($self->{cache});
102 >        $tempdoc->filetoparse($fileobj->ProcessFile());
103 >        my ($doctype,$docversion)=$tempdoc->doctype();
104 >        undef $tempdoc;
105 >        
106 >        if ( ! defined $doctype ) {
107 >          $self->parseerror("No <Doc type=> Specified in ".$url);
108          }
109 +        $self->verbose("doctype required is $doctype $docversion");
110 +
111          # Set up a new object of the specified type
112 <        eval "require $tempdoc->{docobject}";
112 >        eval "require $doctype";
113          die $@ if $@;
114 <        my $newobj=$tempdoc->{docobject}->new($self->config());
323 <        undef $tempdoc;
114 >        my $newobj=$doctype->new($self->{cache},$self->{dbstore});
115          $newobj->url($url);
116          $newobj->parent($self);
326        $newobj->_initparse();
117          return $newobj;
118   }
119  
# Line 334 | Line 124 | sub parent {
124            :$self->{parent};
125   }
126  
337 sub _initparse {
338        my $self=shift;
339
340        $self->parse("init");
341 }
127   # -------- Error Handling and Error services --------------
128  
344 sub error {
345        my $self=shift;
346        my $string=shift;
347
348        die $string."\n";
349 }
350
129   sub parseerror {
130          my $self=shift;
131          my $string=shift;
# Line 364 | Line 142 | sub parseerror {
142          }
143   }
144  
367 sub checktag {
368        my $self=shift;
369        my $tagname=shift;
370        my $hashref=shift;
371        my $param=shift;
372
373        if ( ! exists $$hashref{$param} ) {
374          $self->parseerror("Incomplete Tag <$tagname> : $param required");
375        }
376 }
377
145   sub line {
146          my $self=shift;
147 +        my $parseline;
148 +
149 +        if ( @_ ) {
150 +          $parseline=shift;
151 +        }
152 +        else {
153 +          $parseline=$self->{currentparser}->line();
154 +        }
155  
156          my ($line, $fileobj)=
157 <                $self->{File}->realline($self->{currentparser}->line());
157 >                $self->{File}->realline($parseline);
158          return ($line, $fileobj);
159   }
160  
# Line 402 | Line 177 | sub ProcessFile {
177          return $self->{File}->ProcessedFile();
178   }
179  
405 # --------------- Initialisation Methods ---------------------------
406
407 sub init {
408        # Dummy Routine - override for derived classes
409 }
410
411 # ------------------- Tag Routines -----------------------------------
180   #
181 < # Base - for setting url bases
181 > # Delegate all else to the switch
182   #
183 < sub Base_start {
184 <        my $self=shift;
417 <        my $name=shift;
418 <        my $hashref=shift;
183 > #sub AUTOLOAD {
184 > #        my $self=shift;
185  
186 <        $self->checktag($name, $hashref, 'type' );
187 <        $self->checktag($name, $hashref, 'base' );
422 <      
423 <        # Keep track of base tags
424 <        push @{$self->{basestack}}, $$hashref{"type"};
425 <        # Set the base
426 <        $self->{urlhandler}->setbase($$hashref{"type"},$hashref);
427 < }
186 >        # dont propogate destroy methods
187 > #        return if $AUTOLOAD=~/::DESTROY/;
188  
189 < sub Base_end {
190 <        my $self=shift;
431 <        my $name=shift;
432 <        my $type;
189 >        # remove this package name
190 > #        ($name=$AUTOLOAD)=~s/ActiveDoc::ActiveDoc:://;
191  
192 <        if ( $#{$self->{basestack}} == -1 ) {
193 <                $self->parseerror("Parse Error : unmatched </$name>");
194 <        }
437 <        else {
438 <          $type = pop @{$self->{basestack}};
439 <          $self->{urlhandler}->unsetbase($type);
440 <        }
441 < }
192 >        # pass the message to SimpleDoc
193 > #        $self->{switch}->$name(@_);
194 > #}
195  
196 +
197 + # ------------------- Tag Routines -----------------------------------
198   sub Doc_Start {
199          my $self=shift;
200          my $name=shift;
# Line 451 | Line 206 | sub Doc_Start {
206             $self->{docobject}=$$hashref{'type'};
207          }
208   }
454
455 sub userinterface {
456        my $self=shift;
457        @_?$self->{userinterface}=shift
458          :$self->{userinterface}
459 }

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