This queue is for tickets about the HTML-Parser CPAN distribution.

Report information
The Basics
Id:
214
Status:
resolved
Priority:
Low/Low
Queue:

People
Owner:
Nobody in particular
Requestors:
dmaki [...] mindspring.com
Cc:
AdminCc:

BugTracker
Severity:
Unimportant
Broken in:
3.25
Fixed in:
(no value)



Subject: default handler not passed correct arguments if string contains bad or no markup
I tried to subclass HTML::Parser, and it seems that the default handler is only invoked when there's correct markup -- and that defeats the purpose :-( [me@myhost]$ perl -V Summary of my perl5 (revision 5.0 version 6 subversion 1) configuration: Platform: osname=linux, osvers=2.4.8-1.5, archname=i686-linux uname='linux sv.wafu.ne.jp 2.4.8-1.5 #7 thu nov 29 18:35:39 jst 2001 i686 unknown ' config_args='' hint=previous, useposix=true, d_sigaction=define usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef useperlio=undef d_sfio=undef uselargefiles=define usesocks=undef use64bitint=undef use64bitall=undef uselongdouble=undef Compiler: cc='cc', ccflags ='-fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64', optimize='-O2', cppflags='-fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64' ccversion='', gccversion='2.96 20000731 (Red Hat Linux 7.1 2.96-81)', gccosandvers='' intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8 alignbytes=4, usemymalloc=n, prototype=define Linker and Libraries: ld='cc', ldflags =' -L/usr/local/lib' libpth=/usr/local/lib /lib /usr/lib libs=-lnsl -lndbm -lgdbm -ldl -lm -lc -lcrypt -lutil perllibs=-lnsl -ldl -lm -lc -lcrypt -lutil libc=/lib/libc-2.2.2.so, so=so, useshrplib=true, libperl=libperl.so Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic -Wl,-rpath,/usr/local/lib/perl5/5.6.1/i686-linux/CORE' cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib' Characteristics of this binary (from libperl): Compile-time options: USE_LARGE_FILES Built under linux Compiled at Jan 10 2002 12:05:49 @INC: /usr/local/lib/perl5/5.6.1/i686-linux /usr/local/lib/perl5/5.6.1 /usr/local/lib/perl5/site_perl/5.6.1/i686-linux /usr/local/lib/perl5/site_perl/5.6.1 /usr/local/lib/perl5/site_perl . [me@myhost]$ [me@myhost]$ perl -MHTML::Parser -e 'print $HTML::Parser::VERSION, "\n"' 3.25 package MyParser; use base qw/ HTML::Parser /; sub new { my $class = shift; my $self = $class->SUPER::new( api_version => 3, start_h => [ \&start, 'self,text,tagname,@attr' ], end_h => [ \&end, 'self,text,tagname' ], default_h => [ \&default, 'self,text' ], ); $self; } sub start { print "start_h => @_\n"; } sub end { print "end_h => @_\n"; } sub default { print "default_h => @_\n"; } 1; ## ==== no markup ===== [me@myhost ]$ perl -I../lib -MMyParser -e 'my $p = MyParser->new(); print $p->clean( "foobar" ), "\n"' default_h => [me@myhost ] ## ==== bad markup ===== [me@myhost ]$ perl -I../lib -MMyParser -e 'my $p = MyParser->new(); print $p->clean( "<strong>foobar" ), "\n"' default_h => nsbbs::parser=HASH(0x8056e68) start_h => nsbbs::parser=HASH(0x8056e68) <strong> strong [me@myhost ]$ ## ==== ok markup ===== [me@myhost ]$ perl -I../lib -MMyParser -e 'my $p = MyParser->new(); print $p->clean( "<strong>foobar</strong>" ), "\n"' default_h => nsbbs::parser=HASH(0x8054e28) start_h => nsbbs::parser=HASH(0x8054e28) <strong> strong default_h => nsbbs::parser=HASH(0x8054e28) foobar end_h => nsbbs::parser=HASH(0x8054e28) </strong> strong [me@myhost ]$
Subject: Why require $p->eof for strings with no markup or partial markup?
From: dmaki@mindspring.com
Hmm, I guess ticket id = 100 was about the same thing ( the title of the said post mislead me ). $p->eof definitely did help. I guess what baffled me was that a handler would be called AFTER parse() was done. Is this mechanism really necessary? just curious...
To: bug-HTML-Parser@rt.cpan.org
Cc: dmaki@mindspring.com
Subject: Re: [cpan #214] Why require $p->eof for strings with no markup or partial markup?
From: Gisle Aas <gisle@ActiveState.com>
Date: 28 Jan 2002 16:58:08 -0800
Guest via RT <bug-HTML-Parser@rt.cpan.org> writes:
Show quoted text
> Is this mechanism really necessary?
Yes, because one premise of the API is that you should be able to feed the document in arbitrary chunks. Consider something like: $p->parse("<foo"); $p->parse(" a=1"); $p->parse("><bar"); $p->eof; After the first call to parse we can't know what the "<foo" we got actually is, so we have to delay the decision until we have seen the complete tag or we are told that no more stuff is coming.


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