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Comparing COMP/SCRAM/src/ActiveDoc/SimpleDoc.pm (file contents):
Revision 1.1 by williamc, Wed Apr 5 10:12:13 2000 UTC vs.
Revision 1.1.2.3.2.1 by williamc, Thu Aug 10 12:46:59 2000 UTC

# Line 5 | Line 5
5   #
6   # Description
7   # -----------
8 < # Simple multi parsing functionality
8 > # Simple multi parsing functionality and group manipulation
9   #
10   # Interface
11   # ---------
12 < # new()         : A new ActiveDoc object
12 > # new([DocVersionTag])          : A new ActiveDoc object. You can also
13 > #                                 specify an alternative doc version tag
14   # filetoparse([filename])       : Set/Return the filename of document
15   # newparse(parselabel) : Create a new parse type
16   # parse(parselabel)    : Parse the document file for the given parse level
17 < # addtag(parselabel,tagname,start,obj,text,obj,end,obj) :
17 > # addtag(parselabel,tagname,start,obj,[text,obj,end,obj]) :
18   #                                Add tags to the parse given by label
19 + # grouptag(tagname, parselabel) : Allow a tag to switch context
20 + #                                 - if not you can never turn a context off!
21   # checktag(tagname, hashref, param) : check for existence of param in
22   #                                       hashref from a tag call
23   # includeparse(local_parsename, objparsename, activedoc) : copy the parse from
# Line 24 | Line 27
27   #
28   # addignoretags(parsename) : add <ignore> </igonore> tags funtionality to the
29   #                               specified parse
30 + # opengroup(name) : declare a group to be open
31 + # closegroup(name) : declare a group to be closed
32 + # allowgroup(name,parse) : allow a group so named
33 + # disallowgroup(name,parse) : disallow the named group
34 + # restoregroup(name,parse) : restore group access setting (that before last change)
35 + # doctype()             : return the (type,version) of the document
36 + #                         as specified by the DocVersionTag
37   # --------------- Error handling routines ---------------
38   # verbose(string)       : Print string in verbosity mode
39   # verbosity(0|1)        : verbosity off|on
# Line 41 | Line 51 | sub new {
51          my $class=shift;
52          $self={};
53          bless $self, $class;
54 <        $self->verbose("New SimpleDoc (".ref($self).") Created");
45 <        $self->init(@_);
54 >        $self->_initdoc("doc",@_);
55          return $self;
56   }
57  
58 < sub init {
59 <        # dummy to be overridden by inheriting class
58 > sub doctype {
59 >        my $self=shift;
60 >        my $rv=1;
61 >
62 >        undef $self->{docversion};
63 >        undef $self->{doctype};
64 >        $self->parse("doc");
65 >        if ( ! defined $self->{doctype} ) {
66 >          $self->parseerror("Unable to find <".$self->{doctag}.">");
67 >        }
68 >        return ($self->{doctype},$self->{docversion});
69 > }
70 >
71 > sub _initdoc {
72 >        my $self=shift;
73 >        my $parsename=shift;
74 >
75 >        $self->{doctag}="DOC";
76 >        if ( @_ ) {
77 >          $self->{doctag}=shift;
78 >        }
79 >        $self->newparse($parsename);
80 >        $self->addtag($parsename,$self->{doctag},\&Doc_Start, $self);
81   }
82  
83   sub verbosity {
# Line 70 | Line 100 | sub parse {
100          $parselabel=shift;
101  
102          my $file=$self->filetoparse();
103 <        if ( $file ) {
103 >        if ( -f $file ) {
104            if ( exists $self->{parsers}{$parselabel} ) {
105              $self->verbose("Parsing $parselabel in file $file");
106              $self->{currentparsename}=$parselabel;
# Line 82 | Line 112 | sub parse {
112            }
113          }
114          else {
115 <          $self->error("Cannot parse $parselabel - file not known");
115 >          $self->error("Cannot parse \"$parselabel\" - file $file not known");
116          }
117   }
118  
# Line 142 | Line 172 | sub includeparse {
172   sub addtag {
173          my $self=shift;
174          my $parselabel=shift;
175 <        if ( $#_ != 6 ) {
175 >        if ( ( $#_ != 6 ) && ( $#_ != 2) ) {
176                  $self->error("Incorrect addtags specification\n".
177                                  "called with :\n@_ \n");
178          }
# Line 157 | Line 187 | sub filetoparse {
187          }
188          return $self->{filename};
189   }
190 + # --------- Group services
191 + sub grouptag {
192 +        my $self=shift;
193 +        my $name=shift;
194 +        my $parselabel=shift;
195 +
196 +        $self->{parsers}{$parselabel}->contexttag($name);
197 + }
198 +
199 + sub opengroup {
200 +        my $self=shift;
201 +        my $name=shift;
202 +
203 +        if ( defined $self->currentparser ) {
204 +           $self->currentparser()->opencontext($name);
205 +        }
206 +        else {
207 +           $self->error("Cannot Call opengroup outside of a parse (".
208 +                        caller().")");
209 +        }
210 + }
211 +
212 + sub closegroup {
213 +        my $self=shift;
214 +        my $name=shift;
215 +
216 +        if ( defined $self->currentparser ) {
217 +           $self->currentparser()->closecontext($name);
218 +        }
219 +        else {
220 +           $self->error("Cannot Call closegroup outside of a parse (".
221 +                        caller().")");
222 +        }
223 + }
224 +
225 + sub allowgroup {
226 +        my $self=shift;
227 +        my $name=shift;
228 +        my $parselabel=shift;
229 +
230 +        $self->{parsers}{$parselabel}->includecontext($name);
231 + }
232 +
233 + sub disallowgroup {
234 +        my $self=shift;
235 +        my $name=shift;
236 +        my $parselabel=shift;
237 +
238 +        $self->{parsers}{$parselabel}->excludecontext($name);
239 + }
240  
241   # -------- Error Handling and Error services --------------
242  
# Line 172 | Line 252 | sub parseerror {
252          my $string=shift;
253  
254          if ( $self->currentparsename() eq "" ) {
255 <                $self->error($string);
255 >                $self->error("Error In file ".$self->filetoparse."\n".$string);
256          }
257          else {
258           $line=$self->line();
# Line 204 | Line 284 | sub tagstartline {
284          return $self->{currentparser}->tagstartline();
285   }
286  
287 + # -- tag routines
288 + sub Doc_Start {
289 +        my $self=shift;
290 +        my $name=shift;
291 +        my $hashref=shift;
292 +
293 +        $self->checktag($name, $hashref, "type");
294 +        $self->checktag($name, $hashref, "version");
295 +
296 +        $self->{doctype}=$$hashref{'type'};
297 +        $self->{docversion}=$$hashref{'version'};
298 + }

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