6 BEGIN { *DEBUG = sub () {0} unless defined &DEBUG }
8 use Pod::Escapes 1.04 ();
9 use Pod::Simple::LinkSection ();
10 use Pod::Simple::BlackBox ();
15 @Known_formatting_codes @Known_directives
16 %Known_formatting_codes %Known_directives
20 @ISA = ('Pod::Simple::BlackBox');
23 @Known_formatting_codes = qw(I B C L E F S X Z);
24 %Known_formatting_codes = map(($_=>1), @Known_formatting_codes);
25 @Known_directives = qw(head1 head2 head3 head4 item over back);
26 %Known_directives = map(($_=>'Plain'), @Known_directives);
27 $NL = $/ unless defined $NL;
29 #-----------------------------------------------------------------------------
30 # Set up some constants:
33 if(defined &ASCII) { }
34 elsif(chr(65) eq 'A') { *ASCII = sub () {1} }
35 else { *ASCII = sub () {''} }
37 unless(defined &MANY_LINES) { *MANY_LINES = sub () {20} }
38 DEBUG > 4 and print "MANY_LINES is ", MANY_LINES(), "\n";
39 unless(MANY_LINES() >= 1) {
40 die "MANY_LINES is too small (", MANY_LINES(), ")!\nAborting";
42 if(defined &UNICODE) { }
43 elsif($] >= 5.008) { *UNICODE = sub() {1} }
44 else { *UNICODE = sub() {''} }
47 print "# We are ", ASCII ? '' : 'not ', "in ASCII-land\n";
48 print "# We are under a Unicode-safe Perl.\n";
52 # This is a parser for Pod. It is not a parser for the set of Pod-like
53 # languages which happens to contain Pod -- it is just for Pod, plus possibly
56 # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
57 #@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
58 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
60 __PACKAGE__->_accessorize(
61 'nbsp_for_S', # Whether to map S<...>'s to \xA0 characters
62 'source_filename', # Filename of the source, for use in warnings
63 'source_dead', # Whether to consider this parser's source dead
65 'output_fh', # The filehandle we're writing to, if applicable.
66 # Used only in some derived classes.
68 'hide_line_numbers', # For some dumping subclasses: whether to pointedly
69 # suppress the start_line attribute
71 'line_count', # the current line number
72 'pod_para_count', # count of pod paragraphs seen so far
74 'no_whining', # whether to suppress whining
75 'no_errata_section', # whether to suppress the errata section
76 'complain_stderr', # whether to complain to stderr
78 'doc_has_started', # whether we've fired the open-Document event yet
80 'bare_output', # For some subclasses: whether to prepend
81 # header-code and postpend footer-code
83 'fullstop_space_harden', # Whether to turn ". " into ".[nbsp] ";
85 'nix_X_codes', # whether to ignore X<...> codes
86 'merge_text', # whether to avoid breaking a single piece of
87 # text up into several events
89 'preserve_whitespace', # whether to try to keep whitespace as-is
90 'strip_verbatim_indent', # What indent to strip from verbatim
92 'content_seen', # whether we've seen any real Pod content
93 'errors_seen', # TODO: document. whether we've seen any errors (fatal or not)
95 'codes_in_verbatim', # for PseudoPod extensions
97 'code_handler', # coderef to call when a code (non-pod) line is seen
98 'cut_handler', # coderef to call when a =cut line is seen
100 # $code_handler->($line, $self->{'line_count'}, $self) if $code_handler;
101 # $cut_handler->($line, $self->{'line_count'}, $self) if $cut_handler;
105 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
107 sub any_errata_seen { # good for using as an exit() value...
108 return shift->{'errors_seen'} || 0;
111 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
112 # Pull in some functions that, for some reason, I expect to see here too:
114 *pretty = \&Pod::Simple::BlackBox::pretty;
115 *stringify_lol = \&Pod::Simple::BlackBox::stringify_lol;
118 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
121 my $class = ref($_[0]) || $_[0];
122 if($class eq __PACKAGE__) {
123 return "$class $VERSION";
125 my $v = $class->VERSION;
126 return "$class $v (" . __PACKAGE__ . " $VERSION)";
130 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
132 #sub curr_open { # read-only list accessor
133 # return @{ $_[0]{'curr_open'} || return() };
135 #sub _curr_open_listref { $_[0]{'curr_open'} ||= [] }
139 # Works by faking out output_fh. Simplifies our code.
142 return $this->{'output_string'} unless @_; # GET.
144 require Pod::Simple::TiedOutFH;
145 my $x = (defined($_[0]) and ref($_[0])) ? $_[0] : \( $_[0] );
146 $$x = '' unless defined $$x;
147 DEBUG > 4 and print "# Output string set to $x ($$x)\n";
148 $this->{'output_fh'} = Pod::Simple::TiedOutFH->handle_on($_[0]);
150 $this->{'output_string'} = $_[0];
151 #${ ${ $this->{'output_fh'} } };
154 sub abandon_output_string { $_[0]->abandon_output_fh; delete $_[0]{'output_string'} }
155 sub abandon_output_fh { $_[0]->output_fh(undef) }
156 # These don't delete the string or close the FH -- they just delete our
157 # references to it/them.
158 # TODO: document these
160 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
163 # takes no parameters
164 my $class = ref($_[0]) || $_[0];
165 #Carp::croak(__PACKAGE__ . " is a virtual base class -- see perldoc "
168 'accept_codes' => { map( ($_=>$_), @Known_formatting_codes ) },
169 'accept_directives' => { %Known_directives },
170 'accept_targets' => {},
176 # TODO: an option for whether to interpolate E<...>'s, or just resolve to codes.
178 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
180 sub _handle_element_start { # OVERRIDE IN DERIVED CLASS
181 my($self, $element_name, $attr_hash_r) = @_;
185 sub _handle_element_end { # OVERRIDE IN DERIVED CLASS
186 my($self, $element_name) = @_;
190 sub _handle_text { # OVERRIDE IN DERIVED CLASS
191 my($self, $text) = @_;
195 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
197 # And now directives (not targets)
199 sub accept_directive_as_verbatim { shift->_accept_directives('Verbatim', @_) }
200 sub accept_directive_as_data { shift->_accept_directives('Data', @_) }
201 sub accept_directive_as_processed { shift->_accept_directives('Plain', @_) }
203 sub _accept_directives {
204 my($this, $type) = splice @_,0,2;
206 next unless defined $d and length $d;
207 Carp::croak "\"$d\" isn't a valid directive name"
208 unless $d =~ m/^[a-zA-Z][a-zA-Z0-9]*$/s;
209 Carp::croak "\"$d\" is already a reserved Pod directive name"
210 if exists $Known_directives{$d};
211 $this->{'accept_directives'}{$d} = $type;
212 DEBUG > 2 and print "Learning to accept \"=$d\" as directive of type $type\n";
214 DEBUG > 6 and print "$this\'s accept_directives : ",
215 pretty($this->{'accept_directives'}), "\n";
217 return sort keys %{ $this->{'accept_directives'} } if wantarray;
221 #--------------------------------------------------------------------------
222 # TODO: document these:
224 sub unaccept_directive { shift->unaccept_directives(@_) };
226 sub unaccept_directives {
229 next unless defined $d and length $d;
230 Carp::croak "\"$d\" isn't a valid directive name"
231 unless $d =~ m/^[a-zA-Z][a-zA-Z0-9]*$/s;
232 Carp::croak "But you must accept \"$d\" directives -- it's a builtin!"
233 if exists $Known_directives{$d};
234 delete $this->{'accept_directives'}{$d};
235 DEBUG > 2 and print "OK, won't accept \"=$d\" as directive.\n";
237 return sort keys %{ $this->{'accept_directives'} } if wantarray;
241 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
243 # And now targets (not directives)
245 sub accept_target { shift->accept_targets(@_) } # alias
246 sub accept_target_as_text { shift->accept_targets_as_text(@_) } # alias
249 sub accept_targets { shift->_accept_targets('1', @_) }
251 sub accept_targets_as_text { shift->_accept_targets('force_resolve', @_) }
252 # forces them to be processed, even when there's no ":".
254 sub _accept_targets {
255 my($this, $type) = splice @_,0,2;
257 next unless defined $t and length $t;
258 # TODO: enforce some limitations on what a target name can be?
259 $this->{'accept_targets'}{$t} = $type;
260 DEBUG > 2 and print "Learning to accept \"$t\" as target of type $type\n";
262 return sort keys %{ $this->{'accept_targets'} } if wantarray;
266 #--------------------------------------------------------------------------
267 sub unaccept_target { shift->unaccept_targets(@_) }
269 sub unaccept_targets {
272 next unless defined $t and length $t;
273 # TODO: enforce some limitations on what a target name can be?
274 delete $this->{'accept_targets'}{$t};
275 DEBUG > 2 and print "OK, won't accept \"$t\" as target.\n";
277 return sort keys %{ $this->{'accept_targets'} } if wantarray;
281 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
283 # And now codes (not targets or directives)
285 sub accept_code { shift->accept_codes(@_) } # alias
287 sub accept_codes { # Add some codes
290 foreach my $new_code (@_) {
291 next unless defined $new_code and length $new_code;
293 # A good-enough check that it's good as an XML Name symbol:
294 Carp::croak "\"$new_code\" isn't a valid element name"
296 m/[\x00-\x2C\x2F\x39\x3B-\x40\x5B-\x5E\x60\x7B-\x7F]/
297 # Characters under 0x80 that aren't legal in an XML Name.
298 or $new_code =~ m/^[-\.0-9]/s
299 or $new_code =~ m/:[-\.0-9]/s;
300 # The legal under-0x80 Name characters that
301 # an XML Name still can't start with.
304 $this->{'accept_codes'}{$new_code} = $new_code;
306 # Yes, map to itself -- just so that when we
307 # see "=extend W [whatever] thatelementname", we say that W maps
308 # to whatever $this->{accept_codes}{thatelementname} is,
309 # i.e., "thatelementname". Then when we go re-mapping,
310 # a "W" in the treelet turns into "thatelementname". We only
312 # If we say we accept "W", then a "W" in the treelet simply turns
319 #--------------------------------------------------------------------------
320 sub unaccept_code { shift->unaccept_codes(@_) }
322 sub unaccept_codes { # remove some codes
325 foreach my $new_code (@_) {
326 next unless defined $new_code and length $new_code;
328 # A good-enough check that it's good as an XML Name symbol:
329 Carp::croak "\"$new_code\" isn't a valid element name"
331 m/[\x00-\x2C\x2F\x39\x3B-\x40\x5B-\x5E\x60\x7B-\x7F]/
332 # Characters under 0x80 that aren't legal in an XML Name.
333 or $new_code =~ m/^[-\.0-9]/s
334 or $new_code =~ m/:[-\.0-9]/s;
335 # The legal under-0x80 Name characters that
336 # an XML Name still can't start with.
339 Carp::croak "But you must accept \"$new_code\" codes -- it's a builtin!"
340 if grep $new_code eq $_, @Known_formatting_codes;
342 delete $this->{'accept_codes'}{$new_code};
344 DEBUG > 2 and print "OK, won't accept the code $new_code<...>.\n";
351 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
352 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
354 sub parse_string_document {
357 foreach my $line_group (@_) {
358 next unless defined $line_group and length $line_group;
359 pos($line_group) = 0;
361 m/([^\n\r]*)((?:\r?\n)?)/g
364 $self->parse_lines($1)
365 if length($1) or length($2)
366 or pos($line_group) != length($line_group);
367 # I.e., unless it's a zero-length "empty line" at the very
368 # end of "foo\nbar\n" (i.e., between the \n and the EOS).
371 $self->parse_lines(undef); # to signal EOF
375 sub _init_fh_source {
376 my($self, $source) = @_;
378 #DEBUG > 1 and print "Declaring $source as :raw for starters\n";
379 #$self->_apply_binmode($source, ':raw');
380 #binmode($source, ":raw");
385 #:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.
389 my($self, $source) = (@_);
391 if(!defined $source) {
392 Carp::croak("Can't use empty-string as a source for parse_file");
393 } elsif(ref(\$source) eq 'GLOB') {
394 $self->{'source_filename'} = '' . ($source);
395 } elsif(ref $source) {
396 $self->{'source_filename'} = '' . ($source);
397 } elsif(!length $source) {
398 Carp::croak("Can't use empty-string as a source for parse_file");
402 open(PODSOURCE, "<$source") || Carp::croak("Can't open $source: $!");
403 $self->{'source_filename'} = $source;
404 $source = *PODSOURCE{IO};
406 $self->_init_fh_source($source);
408 # By here, $source is a FH.
410 $self->{'source_fh'} = $source;
413 until( $self->{'source_dead'} ) {
415 for($i = MANY_LINES; $i--;) { # read those many lines at a time
417 push @lines, scalar(<$source>); # readline
418 last unless defined $lines[-1];
419 # but pass thru the undef, which will set source_dead to true
421 $self->parse_lines(@lines);
423 delete($self->{'source_fh'}); # so it can be GC'd
427 #:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.
429 sub parse_from_file {
430 # An emulation of Pod::Parser's interface, for the sake of Perldoc.
431 # Basically just a wrapper around parse_file.
433 my($self, $source, $to) = @_;
434 $self = $self->new unless ref($self); # so we tolerate being a class method
436 if(!defined $source) { $source = *STDIN{IO}
437 } elsif(ref(\$source) eq 'GLOB') { # stet
438 } elsif(ref($source) ) { # stet
439 } elsif(!length $source
440 or $source eq '-' or $source =~ m/^<&(STDIN|0)$/i
442 $source = *STDIN{IO};
445 if(!defined $to) { $self->output_fh( *STDOUT{IO} );
446 } elsif(ref(\$to) eq 'GLOB') { $self->output_fh( $to );
447 } elsif(ref($to)) { $self->output_fh( $to );
449 or $to eq '-' or $to =~ m/^>&?(?:STDOUT|1)$/i
451 $self->output_fh( *STDOUT{IO} );
454 my $out_fh = Symbol::gensym();
455 DEBUG and print "Write-opening to $to\n";
456 open($out_fh, ">$to") or Carp::croak "Can't write-open $to: $!";
458 if $self->can('write_with_binmode') and $self->write_with_binmode;
459 $self->output_fh($out_fh);
462 return $self->parse_file($source);
465 #-----------------------------------------------------------------------------
468 #my($self,$line,$complaint) = @_;
469 my $self = shift(@_);
470 ++$self->{'errors_seen'};
471 if($self->{'no_whining'}) {
472 DEBUG > 9 and print "Discarding complaint (at line $_[0]) $_[1]\n because no_whining is on.\n";
475 return $self->_complain_warn(@_) if $self->{'complain_stderr'};
476 return $self->_complain_errata(@_);
479 sub scream { # like whine, but not suppressable
480 #my($self,$line,$complaint) = @_;
481 my $self = shift(@_);
482 ++$self->{'errors_seen'};
483 return $self->_complain_warn(@_) if $self->{'complain_stderr'};
484 return $self->_complain_errata(@_);
488 my($self,$line,$complaint) = @_;
489 return printf STDERR "%s around line %s: %s\n",
490 $self->{'source_filename'} || 'Pod input', $line, $complaint;
493 sub _complain_errata {
494 my($self,$line,$complaint) = @_;
495 if( $self->{'no_errata_section'} ) {
496 DEBUG > 9 and print "Discarding erratum (at line $line) $complaint\n because no_errata_section is on.\n";
498 DEBUG > 9 and print "Queuing erratum (at line $line) $complaint\n";
499 push @{$self->{'errata'}{$line}}, $complaint
500 # for a report to be generated later!
505 #@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
507 sub _get_initial_item_type {
508 # A hack-wrapper here for when you have like "=over\n\n=item 456\n\n"
509 my($self, $para) = @_;
510 return $para->[1]{'~type'} if $para->[1]{'~type'};
512 return $para->[1]{'~type'} = 'text'
513 if join("\n", @{$para}[2 .. $#$para]) =~ m/^\s*(\d+)\.?\s*$/s and $1 ne '1';
514 # Else fall thru to the general case:
515 return $self->_get_item_type($para);
520 sub _get_item_type { # mutates the item!!
521 my($self, $para) = @_;
522 return $para->[1]{'~type'} if $para->[1]{'~type'};
525 # Otherwise we haven't yet been to this node. Maybe alter it...
527 my $content = join "\n", @{$para}[2 .. $#$para];
529 if($content =~ m/^\s*\*\s*$/s or $content =~ m/^\s*$/s) {
530 # Like: "=item *", "=item * ", "=item"
531 splice @$para, 2; # so it ends up just being ['=item', { attrhash } ]
532 $para->[1]{'~orig_content'} = $content;
533 return $para->[1]{'~type'} = 'bullet';
535 } elsif($content =~ m/^\s*\*\s+(.+)/s) { # tolerance
537 # Like: "=item * Foo bar baz";
538 $para->[1]{'~orig_content'} = $content;
539 $para->[1]{'~_freaky_para_hack'} = $1;
540 DEBUG > 2 and print " Tolerating $$para[2] as =item *\\n\\n$1\n";
541 splice @$para, 2; # so it ends up just being ['=item', { attrhash } ]
542 return $para->[1]{'~type'} = 'bullet';
544 } elsif($content =~ m/^\s*(\d+)\.?\s*$/s) {
545 # Like: "=item 1.", "=item 123412"
547 $para->[1]{'~orig_content'} = $content;
548 $para->[1]{'number'} = $1; # Yes, stores the number there!
550 splice @$para, 2; # so it ends up just being ['=item', { attrhash } ]
551 return $para->[1]{'~type'} = 'number';
554 # It's anything else.
555 return $para->[1]{'~type'} = 'text';
560 #-----------------------------------------------------------------------------
563 my $self = shift; # and ($para, $start_line)
567 } if(ref $_[0] and ref $_[0][0] and $_[0][0][0] eq '~Top') {
568 # Hack so we can pass in fake-o pre-cooked paragraphs:
569 # just have the first line be a reference to a ['~Top', {}, ...]
570 # We use this feechure in gen_errata and stuff.
572 DEBUG and print "Applying precooked treelet hack to $_[0][0]\n";
574 splice @$treelet, 0, 2; # lop the top off
577 $treelet = $self->_treelet_from_formatting_codes(@_);
580 if( $self->_remap_sequences($treelet) ) {
581 $self->_treat_Zs($treelet); # Might as well nix these first
582 $self->_treat_Ls($treelet); # L has to precede E and S
583 $self->_treat_Es($treelet);
584 $self->_treat_Ss($treelet); # S has to come after E
586 $self->_wrap_up($treelet); # Nix X's and merge texties
589 DEBUG and print "Formatless treelet gets fast-tracked.\n";
593 splice @$treelet, 0, 2; # lop the top off
598 #:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.
601 my($self, @stack) = @_;
602 my $nixx = $self->{'nix_X_codes'};
603 my $merge = $self->{'merge_text' };
604 return unless $nixx or $merge;
606 DEBUG > 2 and print "\nStarting _wrap_up traversal.\n",
607 $merge ? (" Merge mode on\n") : (),
608 $nixx ? (" Nix-X mode on\n") : (),
613 while($treelet = shift @stack) {
614 DEBUG > 3 and print " Considering children of this $treelet->[0] node...\n";
615 for($i = 2; $i < @$treelet; ++$i) { # iterate over children
616 DEBUG > 3 and print " Considering child at $i ", pretty($treelet->[$i]), "\n";
617 if($nixx and ref $treelet->[$i] and $treelet->[$i][0] eq 'X') {
618 DEBUG > 3 and print " Nixing X node at $i\n";
619 splice(@$treelet, $i, 1); # just nix this node (and its descendants)
620 # no need to back-update the counter just yet
623 } elsif($merge and $i != 2 and # non-initial
624 !ref $treelet->[$i] and !ref $treelet->[$i - 1]
626 DEBUG > 3 and print " Merging ", $i-1,
627 ":[$treelet->[$i-1]] and $i\:[$treelet->[$i]]\n";
628 $treelet->[$i-1] .= ( splice(@$treelet, $i, 1) )[0];
629 DEBUG > 4 and print " Now: ", $i-1, ":[$treelet->[$i-1]]\n";
632 # since we just pulled the possibly last node out from under
633 # ourselves, we can't just redo()
635 } elsif( ref $treelet->[$i] ) {
636 DEBUG > 4 and print " Enqueuing ", pretty($treelet->[$i]), " for traversal.\n";
637 push @stack, $treelet->[$i];
639 if($treelet->[$i][0] eq 'L') {
641 foreach my $attrname ('section', 'to') {
642 if(defined($thing = $treelet->[$i][1]{$attrname}) and ref $thing) {
643 unshift @stack, $thing;
644 DEBUG > 4 and print " +Enqueuing ",
645 pretty( $treelet->[$i][1]{$attrname} ),
646 " as an attribute value to tweak.\n";
653 DEBUG > 2 and print "End of _wrap_up traversal.\n\n";
658 #:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.
660 sub _remap_sequences {
661 my($self,@stack) = @_;
663 if(@stack == 1 and @{ $stack[0] } == 3 and !ref $stack[0][2]) {
664 # VERY common case: abort it.
665 DEBUG and print "Skipping _remap_sequences: formatless treelet.\n";
669 my $map = ($self->{'accept_codes'} || die "NO accept_codes in $self?!?");
671 my $start_line = $stack[0][1]{'start_line'};
673 "\nAbout to start _remap_sequences on treelet from line %s.\n",
676 DEBUG > 3 and print " Map: ",
677 join('; ', map "$_=" . (
678 ref($map->{$_}) ? join(",", @{$map->{$_}}) : $map->{$_}
681 ("B~C~E~F~I~L~S~X~Z" eq join '~', sort keys %$map)
682 ? " (all normal)\n" : "\n"
685 # A recursive algorithm implemented iteratively! Whee!
687 my($is, $was, $i, $treelet); # scratch
688 while($treelet = shift @stack) {
689 DEBUG > 3 and print " Considering children of this $treelet->[0] node...\n";
690 for($i = 2; $i < @$treelet; ++$i) { # iterate over children
691 next unless ref $treelet->[$i]; # text nodes are uninteresting
693 DEBUG > 4 and print " Noting child $i : $treelet->[$i][0]<...>\n";
695 $is = $treelet->[$i][0] = $map->{ $was = $treelet->[$i][0] };
698 print " Code $was<> is UNKNOWN!\n";
699 } elsif($is eq $was) {
700 DEBUG > 4 and print " Code $was<> stays the same.\n";
702 print " Code $was<> maps to ",
704 ? ( "tags ", map("$_<", @$is), '...', map('>', @$is), "\n" )
710 $self->whine($start_line, "Deleting unknown formatting code $was<>");
711 $is = $treelet->[$i][0] = '1'; # But saving the children!
712 # I could also insert a leading "$was<" and tailing ">" as
713 # children of this node, but something about that seems icky.
717 DEBUG > 4 and print " Renaming $was node to $dynasty[-1]\n";
718 $treelet->[$i][0] = pop @dynasty;
722 " Grafting a new %s node between %s and %s\n",
723 $dynasty[-1], $treelet->[0], $treelet->[$i][0],
727 splice @$treelet, $i, 1, [pop(@dynasty), {}, $treelet->[$i]];
728 # relace node with a new parent
730 } elsif($is eq '0') {
731 splice(@$treelet, $i, 1); # just nix this node (and its descendants)
732 --$i; # back-update the counter
733 } elsif($is eq '1') {
734 splice(@$treelet, $i, 1 # replace this node with its children!
735 => splice @{ $treelet->[$i] },2
736 # (not catching its first two (non-child) items)
738 --$i; # back up for new stuff
740 # otherwise it's unremarkable
741 unshift @stack, $treelet->[$i]; # just recurse
746 DEBUG > 2 and print "End of _remap_sequences traversal.\n\n";
748 if(@_ == 2 and @{ $_[1] } == 3 and !ref $_[1][2]) {
749 DEBUG and print "Noting that the treelet is now formatless.\n";
755 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
759 # "Go to an extreme, move back to a more comfortable place"
760 # -- /Oblique Strategies/, Brian Eno and Peter Schmidt
762 my($self, $para) = @_;
763 my $content = join ' ', splice @$para, 2;
764 $content =~ s/^\s+//s;
765 $content =~ s/\s+$//s;
767 DEBUG > 2 and print "Ogling extensor: =extend $content\n";
773 (\S+) # 2 : fallback(s)
774 (?:\s+(\S+))? # 3 : element name(s)
780 my $fallbacks_one = $2;
782 $elements_one = defined($3) ? $3 : $1;
784 DEBUG > 2 and print "Extensor has good syntax.\n";
786 unless($new_letter =~ m/^[A-Z]$/s or $new_letter) {
787 DEBUG > 2 and print " $new_letter isn't a valid thing to entend.\n";
789 $para->[1]{'start_line'},
790 "You can extend only formatting codes A-Z, not like \"$new_letter\""
795 if(grep $new_letter eq $_, @Known_formatting_codes) {
796 DEBUG > 2 and print " $new_letter isn't a good thing to extend, because known.\n";
798 $para->[1]{'start_line'},
799 "You can't extend an established code like \"$new_letter\""
802 #TODO: or allow if last bit is same?
807 unless($fallbacks_one =~ m/^[A-Z](,[A-Z])*$/s # like "B", "M,I", etc.
808 or $fallbacks_one eq '0' or $fallbacks_one eq '1'
811 $para->[1]{'start_line'},
812 "Format for second =extend parameter must be like"
813 . " M or 1 or 0 or M,N or M,N,O but you have it like "
819 unless($elements_one =~ m/^[^ ,]+(,[^ ,]+)*$/s) { # like "B", "M,I", etc.
821 $para->[1]{'start_line'},
822 "Format for third =extend parameter: like foo or bar,Baz,qu:ux but not like "
828 my @fallbacks = split ',', $fallbacks_one, -1;
829 my @elements = split ',', $elements_one, -1;
831 foreach my $f (@fallbacks) {
832 next if exists $Known_formatting_codes{$f} or $f eq '0' or $f eq '1';
833 DEBUG > 2 and print " Can't fall back on unknown code $f\n";
835 $para->[1]{'start_line'},
836 "Can't use unknown formatting code '$f' as a fallback for '$new_letter'"
841 DEBUG > 3 and printf "Extensor: Fallbacks <%s> Elements <%s>.\n",
842 @fallbacks, @elements;
845 foreach my $e (@elements) {
846 if(exists $self->{'accept_codes'}{$e}) {
847 DEBUG > 1 and print " Mapping '$new_letter' to known extension '$e'\n";
848 $canonical_form = $e;
849 last; # first acceptable elementname wins!
851 DEBUG > 1 and print " Can't map '$new_letter' to unknown extension '$e'\n";
856 if( defined $canonical_form ) {
857 # We found a good N => elementname mapping
858 $self->{'accept_codes'}{$new_letter} = $canonical_form;
860 "Extensor maps $new_letter => known element $canonical_form.\n";
862 # We have to use the fallback(s), which might be '0', or '1'.
863 $self->{'accept_codes'}{$new_letter}
864 = (@fallbacks == 1) ? $fallbacks[0] : \@fallbacks;
866 "Extensor maps $new_letter => fallbacks @fallbacks.\n";
870 DEBUG > 2 and print "Extensor has bad syntax.\n";
872 $para->[1]{'start_line'},
873 "Unknown =extend syntax: $content"
880 #:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.
882 sub _treat_Zs { # Nix Z<...>'s
883 my($self,@stack) = @_;
886 my $start_line = $stack[0][1]{'start_line'};
888 # A recursive algorithm implemented iteratively! Whee!
890 while($treelet = shift @stack) {
891 for($i = 2; $i < @$treelet; ++$i) { # iterate over children
892 next unless ref $treelet->[$i]; # text nodes are uninteresting
893 unless($treelet->[$i][0] eq 'Z') {
894 unshift @stack, $treelet->[$i]; # recurse
898 DEBUG > 1 and print "Nixing Z node @{$treelet->[$i]}\n";
900 # bitch UNLESS it's empty
901 unless( @{$treelet->[$i]} == 2
902 or (@{$treelet->[$i]} == 3 and $treelet->[$i][2] eq '')
904 $self->whine( $start_line, "A non-empty Z<>" );
905 } # but kill it anyway
907 splice(@$treelet, $i, 1); # thereby just nix this node.
916 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
918 # Quoting perlpodspec:
920 # In parsing an L<...> code, Pod parsers must distinguish at least four
923 ############# Not used. Expressed via the element children plus
924 ############# the value of the "content-implicit" flag.
926 # The link-text. If there is none, this must be undef. (E.g., in "L<Perl
927 # Functions|perlfunc>", the link-text is "Perl Functions". In
928 # "L<Time::HiRes>" and even "L<|Time::HiRes>", there is no link text. Note
929 # that link text may contain formatting.)
932 ############# The element children
934 # The possibly inferred link-text -- i.e., if there was no real link text,
935 # then this is the text that we'll infer in its place. (E.g., for
936 # "L<Getopt::Std>", the inferred link text is "Getopt::Std".)
939 ############# The "to" attribute (which might be text, or a treelet)
941 # The name or URL, or undef if none. (E.g., in "L<Perl
942 # Functions|perlfunc>", the name -- also sometimes called the page -- is
943 # "perlfunc". In "L</CAVEATS>", the name is undef.)
946 ############# The "section" attribute (which might be next, or a treelet)
948 # The section (AKA "item" in older perlpods), or undef if none. E.g., in
949 # Getopt::Std/DESCRIPTION, "DESCRIPTION" is the section. (Note that this
950 # is not the same as a manpage section like the "5" in "man 5 crontab".
951 # "Section Foo" in the Pod sense means the part of the text that's
952 # introduced by the heading or item whose text is "Foo".)
954 # Pod parsers may also note additional attributes including:
957 ############# The "type" attribute.
959 # A flag for whether item 3 (if present) is a URL (like
960 # "http://lists.perl.org" is), in which case there should be no section
961 # attribute; a Pod name (like "perldoc" and "Getopt::Std" are); or
962 # possibly a man page name (like "crontab(5)" is).
965 ############# Not implemented, I guess.
967 # The raw original L<...> content, before text is split on "|", "/", etc,
968 # and before E<...> codes are expanded.
971 # For L<...> codes without a "name|" part, only E<...> and Z<> codes may
972 # occur -- no other formatting codes. That is, authors should not use
975 # Note, however, that formatting codes and Z<>'s can occur in any and all
976 # parts of an L<...> (i.e., in name, section, text, and url).
978 sub _treat_Ls { # Process our dear dear friends, the L<...> sequences
981 # L<name/"sec"> or L<name/sec>
982 # L</"sec"> or L</sec> or L<"sec">
984 # L<text|name/"sec"> or L<text|name/sec>
985 # L<text|/"sec"> or L<text|/sec> or L<text|"sec">
989 my($self,@stack) = @_;
992 my $start_line = $stack[0][1]{'start_line'};
994 # A recursive algorithm implemented iteratively! Whee!
996 while($treelet = shift @stack) {
997 for(my $i = 2; $i < @$treelet; ++$i) {
998 # iterate over children of current tree node
999 next unless ref $treelet->[$i]; # text nodes are uninteresting
1000 unless($treelet->[$i][0] eq 'L') {
1001 unshift @stack, $treelet->[$i]; # recurse
1006 # By here, $treelet->[$i] is definitely an L node
1007 my $ell = $treelet->[$i];
1008 DEBUG > 1 and print "Ogling L node $ell\n";
1010 # bitch if it's empty
1012 or (@{$ell} == 3 and $ell->[2] eq '')
1014 $self->whine( $start_line, "An empty L<>" );
1015 $treelet->[$i] = 'L<>'; # just make it a text node
1021 # there are a number of possible cases:
1022 # 1) text node containing url: http://foo.com
1023 # -> [ 'http://foo.com' ]
1024 # 2) text node containing url and text: foo|http://foo.com
1025 # -> [ 'foo|http://foo.com' ]
1026 # 3) text node containing url start: mailto:xE<at>foo.com
1027 # -> [ 'mailto:x', [ E ... ], 'foo.com' ]
1028 # 4) text node containing url start and text: foo|mailto:xE<at>foo.com
1029 # -> [ 'foo|mailto:x', [ E ... ], 'foo.com' ]
1030 # 5) other nodes containing text and url start: OE<39>Malley|http://foo.com
1031 # -> [ 'O', [ E ... ], 'Malley', '|http://foo.com' ]
1034 # anything before the url is part of the text.
1035 # anything after it is part of the url.
1036 # the url text node itself may contain parts of both.
1038 if (my ($url_index, $text_part, $url_part) =
1039 # grep is no good here; we want to bail out immediately so that we can
1040 # use $1, $2, etc. without having to do the match twice.
1043 next if ref $ell->[$_];
1044 next unless $ell->[$_] =~ m/^(?:([^|]*)\|)?(\w+:[^:\s]\S*)$/s;
1045 return ($_, $1, $2);
1050 $ell->[1]{'type'} = 'url';
1052 my @text = @{$ell}[2..$url_index-1];
1053 push @text, $text_part if defined $text_part;
1055 my @url = @{$ell}[$url_index+1..$#$ell];
1056 unshift @url, $url_part;
1059 $ell->[1]{'content-implicit'} = 'yes';
1063 $ell->[1]{to} = Pod::Simple::LinkSection->new(
1069 splice @$ell, 2, $#$ell, @text;
1074 # Catch some very simple and/or common cases
1075 if(@{$ell} == 3 and ! ref $ell->[2]) {
1077 if($it =~ m/^[-a-zA-Z0-9]+\([-a-zA-Z0-9]+\)$/s) { # man sections
1078 # Hopefully neither too broad nor too restrictive a RE
1079 DEBUG > 1 and print "Catching \"$it\" as manpage link.\n";
1080 $ell->[1]{'type'} = 'man';
1081 # This's the only place where man links can get made.
1082 $ell->[1]{'content-implicit'} = 'yes';
1084 Pod::Simple::LinkSection->new( $it ); # treelet!
1088 if($it =~ m/^[^\/\|,\$\%\@\ \"\<\>\:\#\&\*\{\}\[\]\(\)]+(\:\:[^\/\|,\$\%\@\ \"\<\>\:\#\&\*\{\}\[\]\(\)]+)*$/s) {
1089 # Extremely forgiving idea of what constitutes a bare
1090 # modulename link like L<Foo::Bar> or even L<Thing::1.0::Docs::Tralala>
1091 DEBUG > 1 and print "Catching \"$it\" as ho-hum L<Modulename> link.\n";
1092 $ell->[1]{'type'} = 'pod';
1093 $ell->[1]{'content-implicit'} = 'yes';
1095 Pod::Simple::LinkSection->new( $it ); # treelet!
1103 # ...Uhoh, here's the real L<...> parsing stuff...
1104 # "With the ill behavior, with the ill behavior, with the ill behavior..."
1106 DEBUG > 1 and print "Running a real parse on this non-trivial L\n";
1109 my $link_text; # set to an arrayref if found
1110 my @ell_content = @$ell;
1111 splice @ell_content,0,2; # Knock off the 'L' and {} bits
1113 DEBUG > 3 and print " Ell content to start: ",
1114 pretty(@ell_content), "\n";
1117 # Look for the "|" -- only in CHILDREN (not all underlings!)
1118 # Like L<I like the strictness|strict>
1120 print " Peering at L content for a '|' ...\n";
1121 for(my $j = 0; $j < @ell_content; ++$j) {
1122 next if ref $ell_content[$j];
1124 print " Peering at L-content text bit \"$ell_content[$j]\" for a '|'.\n";
1126 if($ell_content[$j] =~ m/^([^\|]*)\|(.*)$/s) {
1127 my @link_text = ($1); # might be 0-length
1128 $ell_content[$j] = $2; # might be 0-length
1131 print " FOUND a '|' in it. Splitting into [$1] + [$2]\n";
1133 unshift @link_text, splice @ell_content, 0, $j;
1134 # leaving only things at J and after
1135 @ell_content = grep ref($_)||length($_), @ell_content ;
1136 $link_text = [grep ref($_)||length($_), @link_text ];
1137 DEBUG > 3 and printf
1138 " So link text is %s\n and remaining ell content is %s\n",
1139 pretty($link_text), pretty(@ell_content);
1145 # Now look for the "/" -- only in CHILDREN (not all underlings!)
1146 # And afterward, anything left in @ell_content will be the raw name
1147 # Like L<Foo::Bar/Object Methods>
1148 my $section_name; # set to arrayref if found
1149 DEBUG > 3 and print " Peering at L-content for a '/' ...\n";
1150 for(my $j = 0; $j < @ell_content; ++$j) {
1151 next if ref $ell_content[$j];
1153 print " Peering at L-content text bit \"$ell_content[$j]\" for a '/'.\n";
1155 if($ell_content[$j] =~ m/^([^\/]*)\/(.*)$/s) {
1156 my @section_name = ($2); # might be 0-length
1157 $ell_content[$j] = $1; # might be 0-length
1160 print " FOUND a '/' in it.",
1161 " Splitting to page [...$1] + section [$2...]\n";
1163 push @section_name, splice @ell_content, 1+$j;
1164 # leaving only things before and including J
1166 @ell_content = grep ref($_)||length($_), @ell_content ;
1167 @section_name = grep ref($_)||length($_), @section_name ;
1169 # Turn L<.../"foo"> into L<.../foo>
1171 and !ref($section_name[0]) and !ref($section_name[-1])
1172 and $section_name[ 0] =~ m/^\"/s
1173 and $section_name[-1] =~ m/\"$/s
1174 and !( # catch weird degenerate case of L<"> !
1175 @section_name == 1 and $section_name[0] eq '"'
1178 $section_name[ 0] =~ s/^\"//s;
1179 $section_name[-1] =~ s/\"$//s;
1181 print " Quotes removed: ", pretty(@section_name), "\n";
1184 print " No need to remove quotes in ", pretty(@section_name), "\n";
1187 $section_name = \@section_name;
1192 # Turn L<"Foo Bar"> into L</Foo Bar>
1193 if(!$section_name and @ell_content
1194 and !ref($ell_content[0]) and !ref($ell_content[-1])
1195 and $ell_content[ 0] =~ m/^\"/s
1196 and $ell_content[-1] =~ m/\"$/s
1197 and !( # catch weird degenerate case of L<"> !
1198 @ell_content == 1 and $ell_content[0] eq '"'
1201 $section_name = [splice @ell_content];
1202 $section_name->[ 0] =~ s/^\"//s;
1203 $section_name->[-1] =~ s/\"$//s;
1206 # Turn L<Foo Bar> into L</Foo Bar>.
1207 if(!$section_name and !$link_text and @ell_content
1208 and grep !ref($_) && m/ /s, @ell_content
1210 $section_name = [splice @ell_content];
1211 # That's support for the now-deprecated syntax.
1212 # (Maybe generate a warning eventually?)
1213 # Note that it deliberately won't work on L<...|Foo Bar>
1217 # Now make up the link_text
1218 # L<Foo> -> L<Foo|Foo>
1219 # L</Bar> -> L<"Bar"|Bar>
1220 # L<Foo/Bar> -> L<"Bar" in Foo/Foo>
1221 unless($link_text) {
1222 $ell->[1]{'content-implicit'} = 'yes';
1224 push @$link_text, '"', @$section_name, '"' if $section_name;
1227 $link_text->[-1] .= ' in ' if $section_name;
1228 push @$link_text, @ell_content;
1233 # And the E resolver will have to deal with all our treeletty things:
1235 if(@ell_content == 1 and !ref($ell_content[0])
1236 and $ell_content[0] =~ m/^[-a-zA-Z0-9]+\([-a-zA-Z0-9]+\)$/s
1238 $ell->[1]{'type'} = 'man';
1239 DEBUG > 3 and print "Considering this ($ell_content[0]) a man link.\n";
1241 $ell->[1]{'type'} = 'pod';
1242 DEBUG > 3 and print "Considering this a pod link (not man or url).\n";
1245 if( defined $section_name ) {
1246 $ell->[1]{'section'} = Pod::Simple::LinkSection->new(
1247 ['', {}, @$section_name]
1249 DEBUG > 3 and print "L-section content: ", pretty($ell->[1]{'section'}), "\n";
1252 if( @ell_content ) {
1253 $ell->[1]{'to'} = Pod::Simple::LinkSection->new(
1254 ['', {}, @ell_content]
1256 DEBUG > 3 and print "L-to content: ", pretty($ell->[1]{'to'}), "\n";
1259 # And update children to be the link-text:
1260 @$ell = (@$ell[0,1], defined($link_text) ? splice(@$link_text) : '');
1262 DEBUG > 2 and print "End of L-parsing for this node $treelet->[$i]\n";
1264 unshift @stack, $treelet->[$i]; # might as well recurse
1271 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1274 my($self,@stack) = @_;
1276 my($i, $treelet, $content, $replacer, $charnum);
1277 my $start_line = $stack[0][1]{'start_line'};
1279 # A recursive algorithm implemented iteratively! Whee!
1282 # Has frightening side effects on L nodes' attributes.
1286 while($treelet = shift @stack) {
1287 for(my $i = 2; $i < @$treelet; ++$i) { # iterate over children
1288 next unless ref $treelet->[$i]; # text nodes are uninteresting
1289 if($treelet->[$i][0] eq 'L') {
1290 # SPECIAL STUFF for semi-processed L<>'s
1293 foreach my $attrname ('section', 'to') {
1294 if(defined($thing = $treelet->[$i][1]{$attrname}) and ref $thing) {
1295 unshift @stack, $thing;
1296 DEBUG > 2 and print " Enqueuing ",
1297 pretty( $treelet->[$i][1]{$attrname} ),
1298 " as an attribute value to tweak.\n";
1302 unshift @stack, $treelet->[$i]; # recurse
1304 } elsif($treelet->[$i][0] ne 'E') {
1305 unshift @stack, $treelet->[$i]; # recurse
1309 DEBUG > 1 and print "Ogling E node ", pretty($treelet->[$i]), "\n";
1311 # bitch if it's empty
1312 if( @{$treelet->[$i]} == 2
1313 or (@{$treelet->[$i]} == 3 and $treelet->[$i][2] eq '')
1315 $self->whine( $start_line, "An empty E<>" );
1316 $treelet->[$i] = 'E<>'; # splice in a literal
1320 # bitch if content is weird
1321 unless(@{$treelet->[$i]} == 3 and !ref($content = $treelet->[$i][2])) {
1322 $self->whine( $start_line, "An E<...> surrounding strange content" );
1323 $replacer = $treelet->[$i]; # scratch
1324 splice(@$treelet, $i, 1, # fake out a literal
1326 splice(@$replacer,2), # promote its content
1329 # Don't need to do --$i, as the 'E<' we just added isn't interesting.
1333 DEBUG > 1 and print "Ogling E<$content>\n";
1335 $charnum = Pod::Escapes::e2charnum($content);
1336 DEBUG > 1 and print " Considering E<$content> with char ",
1337 defined($charnum) ? $charnum : "undef", ".\n";
1339 if(!defined( $charnum )) {
1340 DEBUG > 1 and print "I don't know how to deal with E<$content>.\n";
1341 $self->whine( $start_line, "Unknown E content in E<$content>" );
1342 $replacer = "E<$content>"; # better than nothing
1343 } elsif($charnum >= 255 and !UNICODE) {
1344 $replacer = ASCII ? "\xA4" : "?";
1345 DEBUG > 1 and print "This Perl version can't handle ",
1346 "E<$content> (chr $charnum), so replacing with $replacer\n";
1348 $replacer = Pod::Escapes::e2char($content);
1349 DEBUG > 1 and print " Replacing E<$content> with $replacer\n";
1352 splice(@$treelet, $i, 1, $replacer); # no need to back up $i, tho
1360 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1363 my($self,$treelet) = @_;
1365 _change_S_to_nbsp($treelet,0) if $self->{'nbsp_for_S'};
1367 # TODO: or a change_nbsp_to_S
1368 # Normalizing nbsp's to S is harder: for each text node, make S content
1369 # out of anything matching m/([^ \xA0]*(?:\xA0+[^ \xA0]*)+)/
1376 sub _change_S_to_nbsp { # a recursive function
1377 # Sanely assumes that the top node in the excursion won't be an S node.
1378 my($treelet, $in_s) = @_;
1380 my $is_s = ('S' eq $treelet->[0]);
1381 $in_s ||= $is_s; # So in_s is on either by this being an S element,
1382 # or by an ancestor being an S element.
1384 for(my $i = 2; $i < @$treelet; ++$i) {
1385 if(ref $treelet->[$i]) {
1386 if( _change_S_to_nbsp( $treelet->[$i], $in_s ) ) {
1387 my $to_pull_up = $treelet->[$i];
1388 splice @$to_pull_up,0,2; # ...leaving just its content
1389 splice @$treelet, $i, 1, @$to_pull_up; # Pull up content
1390 $i += @$to_pull_up - 1; # Make $i skip the pulled-up stuff
1393 $treelet->[$i] =~ s/\s/\xA0/g if ASCII and $in_s;
1394 # (If not in ASCIIland, we can't assume that \xA0 == nbsp.)
1396 # Note that if you apply nbsp_for_S to text, and so turn
1397 # "foo S<bar baz> quux" into "foo bar faz quux", you
1398 # end up with something that fails to say "and don't hyphenate
1399 # any part of 'bar baz'". However, hyphenation is such a vexing
1400 # problem anyway, that most Pod renderers just don't render it
1401 # at all. But if you do want to implement hyphenation, I guess
1402 # that you'd better have nbsp_for_S off.
1409 #-----------------------------------------------------------------------------
1411 sub _accessorize { # A simple-minded method-maker
1413 foreach my $attrname (@_) {
1414 next if $attrname =~ m/::/; # a hack
1415 *{caller() . '::' . $attrname} = sub {
1417 $Carp::CarpLevel = 1, Carp::croak(
1418 "Accessor usage: \$obj->$attrname() or \$obj->$attrname(\$new_value)"
1419 ) unless (@_ == 1 or @_ == 2) and ref $_[0];
1420 (@_ == 1) ? $_[0]->{$attrname}
1421 : ($_[0]->{$attrname} = $_[1]);
1424 # Ya know, they say accessories make the ensemble!
1428 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1429 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1430 #=============================================================================
1433 my($class, $source) = @_;
1434 my $new = $class->new;
1435 $new->output_fh(*STDOUT{IO});
1437 if(ref($source || '') eq 'SCALAR') {
1438 $new->parse_string_document( $$source );
1439 } elsif(ref($source)) { # it's a file handle
1440 $new->parse_file($source);
1441 } else { # it's a filename
1442 $new->parse_file($source);
1449 #-----------------------------------------------------------------------------
1452 # For use in testing: Class->_out($source)
1453 # returns the transformation of $source
1455 my $class = shift(@_);
1457 my $mutor = shift(@_) if @_ and ref($_[0] || '') eq 'CODE';
1459 DEBUG and print "\n\n", '#' x 76,
1460 "\nAbout to parse source: {{\n$_[0]\n}}\n\n";
1463 my $parser = ref $class && $class->isa(__PACKAGE__) ? $class : $class->new;
1464 $parser->hide_line_numbers(1);
1467 $parser->output_string( \$out );
1468 DEBUG and print " _out to ", \$out, "\n";
1470 $mutor->($parser) if $mutor;
1472 $parser->parse_string_document( $_[0] );
1473 # use Data::Dumper; print Dumper($parser), "\n";
1479 # For use in testing: Class->_duo($source1, $source2)
1480 # returns the parse trees of $source1 and $source2.
1481 # Good in things like: &ok( Class->duo(... , ...) );
1483 my $class = shift(@_);
1485 Carp::croak "But $class->_duo is useful only in list context!"
1488 my $mutor = shift(@_) if @_ and ref($_[0] || '') eq 'CODE';
1490 Carp::croak "But $class->_duo takes two parameters, not: @_"
1496 my $parser = $class->new;
1499 $parser->output_string( \( $out[-1] ) );
1501 DEBUG and print " _duo out to ", $parser->output_string(),
1502 " = $parser->{'output_string'}\n";
1504 $parser->hide_line_numbers(1);
1505 $mutor->($parser) if $mutor;
1506 $parser->parse_string_document( shift( @_ ) );
1507 # use Data::Dumper; print Dumper($parser), "\n";
1515 #-----------------------------------------------------------------------------
1520 A start_formatting_code and end_formatting_code methods, which in the
1521 base class call start_L, end_L, start_C, end_C, etc., if they are
1524 have the POD FORMATTING ERRORS section note the localtime, and the
1525 version of Pod::Simple.
1527 option to delete all E<shy>s?
1528 option to scream if under-0x20 literals are found in the input, or
1529 under-E<32> E codes are found in the tree. And ditto \x7f-\x9f
1531 Option to turn highbit characters into their compromised form? (applies
1534 TODO: BOM/encoding things.
1536 TODO: ascii-compat things in the XML classes?