package Jevix::MakeupUtf;
# ==========================================
#
# Jevix Version 0.9.5 (utf-8)
#
# Developed by Igor Askarov
#
# Please send all suggestions to
# Igor Askarov <juks@juks.ru>
# http://www.jevix.ru/
#
# Release date: 21/01/2008
#
# === Methods list==========================
#
# new the constructor
# procces entry sub
# preset presets selector
# makeup makeup the text
# quotes quotes processor
# cuttags tags processor
# tagend looking fo tag end
# planttags sub to bring the tags back
# vanish sub to remove all the stuff and bring the text to plain mode
# parseTagsAllowString parse the tagsAllow string to hash
# parseTagsDenyString parse the tagsDeny string to hash
#
# ==========================================
use strict;
use warnings;
#UTFMODE#
use Encode;
use utf8;
#UTFMODE#
my $markLength = 7;
my $strip;
my $result;
my $tags;
my $conf;
my @singleTags = qw/link input spacer img br hr/;
my @breakingTags = qw/p td div hr/;
my @spaceTags = qw/br/;
my @tagsToEat = qw/script style/;
# ==The constructor
sub new {
my Jevix::MakeupUtf $class = shift;
return $class;
}
# ==Here we've got the input
sub process($$$) {
my($class, $text, $userConfig) = @_;
#UTFMODE#
$$text = decode("utf8", $$text);
#UTFMODE#
$conf = $userConfig ? $userConfig : {presetBasic=>1};
$class->preset();
$strip = "";
$tags = [];
$result = {};
$result->{error} = 0;
$result->{errorLog} = [];
if(!$conf->{isHTML}) { $strip = $$text; } else { $class->cuttags($text, $conf, $result); }
if($conf->{quotes}) { $class->quotes($conf); }
$class->makeup($conf);
$result->{text} = "";
if($conf->{isHTML}) { $class->planttags($result); } else { $result->{text} = $strip; }
#UTFMODE#
Encode::_utf8_off($result->{text});
#UTFMODE#
return $result;
}
# ==Choosing default setup when necessary
sub preset($$) {
my ($class) = @_;
if(!$conf || $conf->{presetBasic}) {
$conf->{isHTML} = 1 if(!defined($conf->{isHTML})); # HTML mode
$conf->{lineBreaks} = 1 if(!defined($conf->{lineBreaks})); # Linebreaks to <br/>
$conf->{paragraphs} = 0 if(!defined($conf->{paragraphs})); # Paragraphs
$conf->{dashes} = 1 if(!defined($conf->{dashes})); # Replace hyphens with dashes when necessary
$conf->{dots} = 1 if(!defined($conf->{dots})); # Replace 3 dots with a symbol
$conf->{edgeSpaces} = 1 if(!defined($conf->{edgeSpaces})); # Wipe edge space characters
$conf->{multiSpaces} = 1 if(!defined($conf->{multiSpaces})); # Wipe multispaces
$conf->{redundantSpaces} = 1 if(!defined($conf->{redundantSpaces})); # Wipe redundant spaces
$conf->{compositeWordsLength} = 10 if(!defined($conf->{compositeWordsLength})); # The maximim length of composite word to be put inside <nobr>
$conf->{tagLf} = 1 if(!defined($conf->{tagLf})); # Wipe crs and lfs after droppped tag
$conf->{nbsp} = 1 if(!defined($conf->{nbsp})); # Insert non-breaking spaces
$conf->{quotes} = 1 if(!defined($conf->{quotes})); # Makeup quotes
$conf->{qaType} = 0 if(!defined($conf->{qaType})); # Main quotes type
$conf->{qbType} = 2 if(!defined($conf->{qbType})); # Nested quotes type
$conf->{misc} = 1 if(!defined($conf->{misc})); # Misc substitutions
$conf->{codeMode} = 2 if(!defined($conf->{codeMode})); # The way jevix should represent html special characters
}
# If tagsAllow came as a string
if(defined($conf->{tagsAllow}) && !ref($conf->{tagsAllow})) {
my $tmp = $class->parseTagsAllowString($conf->{tagsAllow});
$conf->{tagsAllow} = $tmp->{tagsAllow};
$conf->{tagsDenyAllAttributes} = $tmp->{tagsDenyAllAttributes};
}
# If tagsDeny came as a string
if(defined($conf->{tagsDeny}) && !ref($conf->{tagsDeny})) {
$conf->{tagsDeny} = $class->parseTagsDenyString($conf->{tagsDeny});
}
}
# ==Imposing clear text
sub makeup($$) {
my ($class, $conf) = @_;
# ==Misc
# Prepositions
my $prp_rus = "а|без|безо|в|вне|во|да|для|до|за|и|из|изо|или|к|как|на|над|надо|не|ни|но|о|об|обо|около|от|ото|по|под|подо|при|про|с|сквозь|со|у|через";
my $prp_eng = "aboard|about|above|absent|across|after|against|along|alongside|amid|amidst|among|amongst|around|as|astride|at|atop|before|behind|below|beneath|beside|besides|between|beyond|but|by|despite|down|during|except|following|for|from|in|inside|into|like|mid|minus|near|nearest|notwithstanding|of|off|on|onto|opposite|out|outside|over|past|re|round|save|since|than|through|throughout|till|to|toward|towards|under|underneath|unlike|until|up|upon|via|with|within|without";
my $prp = "$prp_rus|$prp_eng";
my $letters = "A-Za-zА-Яа-яЁёЙй"; # Characters
my $cap_letters = "A-ZА-ЯЁё"; # Capital characters
my $sp = " \xA0\t"; # space class
my $rt = "\r?\n"; # cr class
my $br = "\x00\x0F.[\x01\x03].\x0F\x00"; # br tag
my $pt = "\x00\x0F.[\x02].\x0F\x00"; # Paragraph tag
my $ps = "\x00\x0F.[\x02][\x01\x03]\x0F\x00"; # Paragraph start
my $pe = "\x00\x0F.[\x02][\x02\x00]\x0F\x00"; # Paragraph end
my $to = "\x00\x0F..[\x03\x01]\x0F\x00"; # Opening tag
my $tc = "\x00\x0F..[\x02\x00]\x0F\x00"; # Closing tag
my $bb = "\x00\x0F..[\x02\x03]\x0F\x00"; # Tag where <nobr> is open
my $nb = "\x00\x0F..[\x01\x00]\x0F\x00"; # Tag where no <nobr> open
my $ts = "\x00\x0F"; # Tag start
my $te = "\x0F\x00"; # Tag end
my $brt = "<br *\/?>"; # br tag in text mode
my $pst = "<p>";
my $pet = "</p>";
# Codes, metasymbols or what ever?
my ($cdash, $cnbsp, $cdots, $cfracs, $ccopy, $creg);
if(!$conf->{codeMode}) {
($cdash, $cnbsp, $cdots, $ccopy, $creg) = ("—", " ", "…", "©", "®");
$cfracs = {'1/4'=>"¼", '1/2'=>"½", '3/4'=>"¾"};
} elsif($conf->{codeMode} == 1) {
($cdash, $cnbsp, $cdots, $ccopy, $creg) = ("—", " ", "…", "©", "®");
$cfracs = {'1/4'=>"¼", '1/2'=>"½", '3/4'=>"¾"};
} else {
($cdash, $cnbsp, $cdots, $ccopy, $creg) = ("—", " ", "…", "©", "®");
$cfracs = {'1/4'=>"¼", '1/2'=>"½", '3/4'=>"¾"};
}
# Wiping edge spaces
if($conf->{edgeSpaces}) { $strip =~ s/^[$sp\r\n]*(.+?)[$sp\r\n]*$/$1/isg; }
# Wiping spaces between tags (</td> </tr>)
if($conf->{tagSpaces}) { $strip =~ s/($tc)[$sp]($tc)/$1$2/isg; }
# Wiping multispaces
if($conf->{multiSpaces}) { $strip =~ s/([$sp]){2,}/$1/ig; }
# Wiping redundant spaces
if($conf->{redundantSpaces}) { $strip =~ s{([$sp]+(?![:;]-[)(])([;:,.)?!]))|(\()(?<![:%;]-\()[$sp]+}{$1 ? $2 : $3}eig; }
if($conf->{nbsp}) {
# Prepositions with
$strip =~ s/(^|\x00|[$sp])($prp)[$sp]([0-9$letters])/$1$2$cnbsp$3/gm;
# with digits
$strip =~ s{($nb|^)(.*?)($bb|$)}{ my ($a, $b, $c) = ($1, $2, $3); $b =~ s/([0-9]+)([$sp]+| | )(?:(?=[0-9]{2,})|(?=%))/$1$cnbsp/ig; "$a$b$c"; }eisg;
}
# Put composite words inside <nobr>
if($conf->{compositeWords}) { $strip =~ s{($nb|^)(.*?)($bb|$)}{ my ($a, $b, $c) = ($1, $2, $3);
$b =~ s{(^|[$sp\x00]| )([$letters]+(?:-[$letters]+)+)(?=$|[$sp\x00])}{
my $d = !defined($1) ? "" : $1; my $e = !defined($2) ? "" : $2; my $f = !defined($3) ? "" : $3;
if(length($e) <= $conf->{compositeWordsLength}) { "$d<nobr>$e<\/nobr>" } else {"$d$e$f"}
}eig; "$a$b$c";
}eisg; }
# Dots
if($conf->{dots}) { $strip =~ s/\.{3}|…|…/$cdots/ig; }
# Dashes
if($conf->{dashes}) {
# Hyphen
$strip =~ s/([^$sp])([$sp]| | )(-{1,2}|—|—|—)/$1$cnbsp$cdash/ig;
# "Speech" hyphen
$strip =~ s/((?:^|$ps|$br|$brt(?:$rt)*|[$rt]))[$sp]*(?: )*(-{1,2}|—|—|—)[$sp]*(?: )*(.)/$1$cdash$cnbsp$3/ig;
}
# Misc stuff
if($conf->{misc}) {
# Fracs
$strip =~ s{(?:(?<=[$sp\x00])|(?<=^))([13])/([24])(?:(?=[$sp\x00])|(?=$))}{if(defined($cfracs->{"$1/$2"})) { $cfracs->{"$1/$2"} } else { "$1/$2" } }esg;
# Copyright & registered
$strip =~ s{(?:(?<=[$sp\x00])|(?<=^))(\([cr]\)|©|©)(?:(?=[$sp\x00?!;.,])|(?=$))}{ if((lc($1) eq "(c)") || (lc($1) eq "©") || ($1 eq "©")) {$ccopy} elsif((lc($1) eq "(r)") || (lc($1) eq "®") || ($1 eq "®")) {$creg} else { $2 } }eig;
}
# Paragraphs
if($conf->{paragraphs}) { $strip =~ s{(^|$pe(?:$rt$rt)?|$rt$rt)(?!$ps)(.+?)($br)?($brt)?(?<!$pe)(?:(?=$)|(?=$rt$rt)|(?=$ps))}{ my ($a, $b, $c) = ($1,$2,$3||""); (($b =~ /^[ \r\n]+$/) || ($b =~ /^(<br *\/?>|$br)+$/)) ? "$a$b$c" : "$a<p>$b</p>";}eisg; }
# Line break
if($conf->{lineBreaks}) { $strip =~ s/(?<!$pt)(?<!$br)(?<!$br\r)(?<!$pe\r\n\r\n)(?<!$pe\n\n)(?<!$pe\r\n)(?<!$pe\n)(?<!$pe\r)(?<!$pe)(?<!$pet\r\n\r\n)(?<!$pet\r\n\r)(?<!$pet\n\n)(?<!$pet\r\n)(?<!$pet\n)(?<!$pet\r)(?<!$pet)(?<!$pst)($rt)(?!$brt)/<br \/>$1/isg; }
}
# ==impose quotes
sub quotes($$) {
my ($class, $conf) = @_;
my $i;
my ($a_open, $b_open) = (0,0);
my ($cp, $c, $cn, $cn_is_sp, $cp_is_sp) = ('', '', '', 0, 0);
my ($qaStart, $qaEnd, $qbStart, $qbEnd);
my (@qs, @qe, @qs_ansi, @qe_ansi, @qs_html, @qe_html, @qs_ent, @qe_ent,);
# space class
my $sp =" \t\xA0";
# characters
my $letters = "A-Za-zА-Яа-яЁёЙй";
@qs_ansi = ("«", "“", "„", "‘", "‚", '"');
@qe_ansi = ("»", "”", "“", "’", "‘", '"');
@qs_html = ("«", "“", "„", "‘", "‚", """);
@qe_html = ("»", "”", "“", "’", "‘", """);
# << `` .. ` . "
@qs_ent = ("«", "“", "„", "‘", "‚", """);
# >> '' '' ' ` "
@qe_ent = ("»", "”", "“", "’", "‘", """);
# Quotes collection
if(!$conf->{codeMode}) {
@qs = @qs_ansi; @qe = @qe_ansi;
} elsif ($conf->{codeMode} == 1) {
@qs = @qs_html; @qe = @qe_html;
} else {
@qs = @qs_ent; @qe = @qe_ent;
}
# Getting configuration setting
$conf->{qaType} ||= 0;
$conf->{qbType} ||= 1;
$conf->{qaType} = ($conf->{qaType} >= 0 && $conf->{qaType} <= 5) ? $conf->{qaType} : 0;
$conf->{qbType} = ($conf->{qbType} >= 0 && $conf->{qbType} <= 5) ? $conf->{qbType} : 1;
# Selecting quotes as requested by user
($qaStart, $qaEnd) = ($qs[$conf->{qaType}], $qe[$conf->{qaType}]);
($qbStart, $qbEnd) = ($qs[$conf->{qbType}], $qe[$conf->{qbType}]);
# Resetting all the quotes inside text to <">
my $qa = join('|', @qs_ansi) . '|' . join('|', @qe_ansi) . '|' . join('|', @qs_html) . '|' . join('|', @qe_html) . '|' . join('|', @qs_ent) . '|' . join('|', @qe_ent);
$strip =~ s/(?:(?:(?<=[^$letters])|(?<=^))($qa))|(?:($qa)(?:(?=[^$letters])|(?=$)))/\"/ig;
my $spread = 1;
my $mv = 0;
my $mvn = 0;
my @st;
$i = 0;
my $skip = 0;
my @space; # Space tags flag
my @break; # Text break flags
$st[$_] = '' foreach(0..$spread + 1);
$space[$_] = 0 foreach(0 + 1..$spread + 1);
$break[$_] = 0 foreach(0 + 1..$spread + 1);
$space[0] = 1;
$break[0] = 1;
while(1) {
# Skipping tags
foreach(0..$spread) {
do {
$skip = 0;
if($i + $_ + $mv <= length($strip)) {
if($i + $_ + $mv + 1 < length($strip)) {
if((substr($strip, $i + $_ + $mv, 1) eq "\x00") && (substr($strip, $i + $_ + $mv + 1, 1) eq "\x0F")) {
$space[$_ + 1] |= (ord(substr($strip, $i + $_ + $mv + 2, 1)) & 2) >> 1;
$break[$_ + 1] |= ord(substr($strip, $i + $_ + $mv + 2, 1)) & 1;
$mv += $markLength;
if(!$_) { $mvn = $mv; }
$st[$_ + 1] = "";
$skip = 1;
}
}
if(!$skip) { $st[$_ + 1] = substr($strip, $i + $_ + $mv, 1); }
}
} while($skip);
}
$i += $mvn;
$mv = 0;
$mvn = 0;
($cp, $c, $cn) = ($st[0], $st[1], $st[2]);
$cp_is_sp = (($cp =~ /[^0-9$letters]/) || $space[0] || $space[1] || $break[0] || !$i) ? 1 : 0;
$cn_is_sp = (($cn =~ /[^0-9$letters]/) || $space[2] || $break[2] || $cn eq '') ? 1 : 0;
# Reset state if breaking tag appears
if($break[1] || $i == length($strip)) {
if($a_open || $b_open) {
# Log quote error if appears
if($conf->{logErrors}) {
my $quoteErrSampleLength = 100;
my $z = $i - 1;
my $y;
while(1) {
if(substr($strip, $z, 1) eq " " || substr($strip, $z, 1) eq "\xA0" || !$z) { if($i-$z <= $quoteErrSampleLength) {$y = $z}}
last if(!$z);
$z--;
}
my $sample = substr($strip, $y, ($i - $y));
$sample =~ s/\x00\x0F[^\x0F]+\x0F\x00//g;
$sample =~ s/<\/?[a-z]+.*?>//g;
push(@{$result->{errorLog}}, {type=>"Quote_error", message=>"Quote mismatch near [$sample]<--"});
$result->{error} = 1;
}
}
$a_open = 0;
$b_open = 0;
}
if($c eq '"') {
if(!$a_open) {
$a_open = 1;
substr($strip, $i, 1) = $qaStart;
$i += length($qaStart) - 1;
} elsif ($a_open && (($i == length($strip) - 1) || (!$b_open && $cn_is_sp))) {
$a_open = 0;
substr($strip, $i, 1) = $qaEnd;
$i += length($qaEnd) - 1;
} elsif ($a_open && !$b_open) {
$b_open = 1;
substr($strip, $i, 1) = $qbStart;
$i += length($qbStart) - 1;
} elsif ($a_open && $b_open) {
$b_open = 0;
substr($strip, $i, 1) = $qbEnd;
$i += length($qbEnd) - 1;
}
}
last if($i == length($strip));
$st[0] = $st[1];
$space[0] = $space[1];
$break[0] = $break[1];
$space[$_] = 0 foreach(0 + 1..$spread + 1);
$break[$_] = 0 foreach(0 + 1..$spread + 1);
$i++;
}
}
# ==Cutting the tags away
sub cuttags($$$$) {
my($class, $text, $conf, $result) = @_;
my $i = 0; # loop counter
my $hop; # Jump length
my ($c, $cn); # current & next character
my ($tl, $ts, $te, $cl, $tagName, $tagBody, $tagContent); # tag length, tag dimensions, tag name, tag body text, single tag flag, content inside the tag
my ($isTag, $isTagStart, $isSingle, $isSingleClosed, $isSpace, $isBreaking, $nobrIsOpen, $flagSet2, $flagSet1, $flagSet0); # some useful flags
my @tagsOpen; # an array storing the info about all the tags currently open
# space class
my $sp =" \t\xA0";
while(1) {
$hop = index($$text, "<", $i);
if($hop < 0) {
$strip .= substr($$text, $i, length($$text) - $i);
last;
} elsif($hop > 0) {
$strip .= substr($$text, $i, $hop - $i);
$i = $hop;
}
($c, $cn) = unpack("aa", substr($$text, $i, 2));
$isTag = 0;
# =If tag opens
$isTagStart = ($cn =~ /!|[a-z]/i) ? 1 : 0;
if($isTagStart || ($cn eq "/")) { $isTag = 1; }
if($isTag) {
$ts = $i; # Tag start position
$te = $isTagStart ? tagend($text, $ts) : index($$text, ">", $ts); # Tag end position
if($te) {
$tagBody = substr($$text, $ts, $te - $ts + 1);
$tagName = $isTagStart ? ($tagBody =~ m/^<([a-z]+)/i)[0] : ($tagBody =~ m/^<\/\s*([a-z]+)/i)[0];
$tagName =~ tr/A-Z/a-z/;
}
if($te && $tagName) {
$tagBody = substr($$text, $ts, $te - $ts + 1);
$tagName = $isTagStart ? ($tagBody =~ m/^<([a-z]+)/i)[0] : ($tagBody =~ m/^<\/\s*([a-z]+)/i)[0];
$tagName =~ tr/A-Z/a-z/;
# =Flags
# Detecting whether the tag is single (self-closing) or double
$isSingleClosed = 0;
$isSingle = 0;
if($isTagStart) {
if(grep{$tagName eq $_} @singleTags) {
$isSingle = 1;
} elsif (substr($tagBody, length($tagBody) - 2, 1) eq "/") {
$isSingle = 1;
$isSingleClosed = 1;
}
}
# Detecting wether this is space tag or not
$isSpace = (grep{$tagName eq $_} @spaceTags) ? 1 : 0;
# Detecting wether this is breaking tag or not
$isBreaking = (grep{$tagName eq $_} @breakingTags) ? 1 : 0;
# Tag Length
$tl = $te - $ts + 1;
# Updating the status for tags open
if($conf->{checkHTML} && !$isSingle) {
if($isTagStart) {
push(@tagsOpen, $tagName);
} else {
if($tagsOpen[$#tagsOpen] ne $tagName) {
# HTML error
$result->{error} = 1;
if($conf->{logErrors}) { push(@{$result->{errorLog}}, {type=>"HTML_Parse", position=>$i, message=>"Found closing tag <$tagName> while waiting tag <" . $tagsOpen[$#tagsOpen] . "> to close!"}); }
} else {
pop(@tagsOpen);
}
}
}
# Eating tag content for some tags like <script>
$tagContent = "";
$cl = 0;
if((grep{$tagName eq $_} @tagsToEat) && $isTagStart) {
$cl = index($$text, "</$tagName>", $ts + $tl) - $ts - $tl;
if($cl > 0) {
$tagContent = substr($$text, $ts + $tl, $cl);
} else {
$cl = 0;
$result->{error} = 1;
if($conf->{logErrors}) { push(@{$result->{errorLog}}, {type=>"HTML_Parse", position=>$i, message=>"Can't find <$tagName> end!"}); }
}
}
# Should I drop all the tags by default?
my $dropTag = 0;
if($conf->{tagsDenyAll}) { $dropTag = 1; }
# Checking deny list
if(defined($conf->{tagsDeny}) && !$dropTag) {
if($conf->{tagsDeny}->{$tagName}) { $dropTag = 1; }
}
# Checking allow list
if(defined($conf->{tagsAllow}) && $dropTag) {
if($conf->{tagsAllow}->{$tagName}) { $dropTag = 0; }
}
# Nobr tag status
if($tagName eq "nobr" && $isTagStart) {
$nobrIsOpen = 1;
} elsif(($tagName eq "nobr" && !$isTagStart) || (grep{$tagName eq $_} @breakingTags)) {
$nobrIsOpen = 0;
}
# =Final part
if(!$dropTag) {
# =Processing tags
# Tag name to lower case
if($conf->{tagNamesToLower}) {
if($isTagStart) { $tagBody = "<" . $tagName . substr($tagBody, length($tagName) + 1, length($tagBody) - length($tagName) - 1); }
else { $tagBody =~ tr/A-Z/a-z/; }
}
# Tag name to upper case
if($conf->{tagNamesToUpper}) {
if($isTagStart) { $tagBody = "<" . uc($tagName) . substr($tagBody, length($tagName) + 1, length($tagBody) - length($tagName) - 1); }
else { $tagBody =~ tr/a-z/A-Z/; }
}
# =Tag parameters to lower or upper case
if($isTagStart && ($conf->{tagAttributesToLower} || $conf->{tagAttributesToUpper})) {
# Regular parameters
my $tmp = "";
while ($tagBody =~ m/([^\s]*\s*)(?:([a-z\r]+)(\s*)(?==)(=\s*))?/ig ) {
$tmp .= $1 if ($1); if($conf->{tagAttributesToLower}) { if($2) { $tmp .= lc($2); } } else { if($2) { $tmp .= uc($2); } } $tmp .= $3 if ($3); $tmp .= $4 if ($4); $tmp .= $5 if ($5);
}
# Single parameters (like <checked>)
if($conf->{tagAttributesToLower}) { $tagBody =~ s{(?<!=)( +([a-z]+))}{lc($1)}eig; }
elsif($conf->{tagAttributesToUpper}) { $tagBody =~ s{(?<!=)( +([a-z]+))}{uc($1)}eig; }
}
# Simple XSS & tag attributes protection
if($isTagStart && ($conf->{simpleXSS} || $conf->{tagsAllow}->{$tagName}->{validAttributes} || $conf->{tagsAllow}->{$tagName}->{invalidAttributes} || $conf->{tagsAllow}->{$tagName}->{denyAllAttributes} || $conf->{tagsDenyAllAttributes})) {
$tagBody =~ s{(?<!<)(\s*)([a-z]+)([$sp]*=[$sp]*)("[^"]+"|[^$sp/>]+)} {
my ($a, $b, $c, $d) = ($1||'', $2, $3, $4);
if($conf->{simpleXSS} && ($b =~ /^on/ig || $d =~ /javascript|expression/ig)) {
'';
} elsif(($conf->{tagsDenyAllAttributes} || $conf->{tagsAllow}->{$tagName}->{denyAllAttributes} || ($conf->{tagsAllow}->{$tagName}->{invalidAttributes} && $conf->{tagsAllow}->{$tagName}->{invalidAttributes}->{$b}))
&& !(($conf->{tagsAllow}->{$tagName}->{validAttributes} && $conf->{tagsAllow}->{$tagName}->{validAttributes}->{$b})
|| $conf->{tagsAllow}->{$tagName}->{allowAllAttributes})
) {
'';
} elsif($conf->{tagsAllow}->{$tagName}->{validAttributes} && !$conf->{tagsAllow}->{$tagName}->{validAttributes}->{$b}) {
'';
} else {
$a . $b . $c . $d;
}
}eig;
}
# Close single tag
if($conf->{tagCloseSingle} && $isSingle && !$isSingleClosed) {
if(substr($tagBody, length($tagBody) - 2, 1) ne "/") {
if(substr($tagBody, length($tagBody) - 2, 1) ne " ") { substr($tagBody, length($tagBody) - 2, 1) .= " /"; } else { substr($tagBody, length($tagBody) - 2, 1) .= "/"; }
}
}
# Quote attribute values
if($conf->{tagQuoteValues} && $isTagStart) {
my $tmp = "";
# 1 23 4 5 6
while($tagBody =~ m/([<a-z >]+)?((=)(\s*)([^ >]+)([ >]+))?/ig) {
$tmp .= $1 if($1);
if($2) {
$tmp .= $3 if($3);
$tmp .= $4 if($4);
if($5 && substr($5, 0, 1) ne '"' && substr($5, length($5) - 1, 1) ne '"') { $tmp .= "\"$5\""; } else { $tmp .= $5; }
$tmp .= $6 if($6);
}
}
$tagBody = $tmp;
}
# Unquote attribute values
if($conf->{tagUnQuoteValues}) {
$tagBody =~ s/([a-z]+)(\s*)(=)(\s*)"([^\=\s">]+)"/$1$2$3$4$5/ig; #"
}
# Saving the tag
push(@$tags, {name=>$tagName, body=>$tagBody, content=>$tagContent});
# Forming flagSet
#
# |byte2: _ _ _ _ _ _ isSpace isBreaking| byte1: _ _ _ _ _ p br| byte0: _ _ _ _ nobr isTagStart
$flagSet2 = 0;
if($isSpace) { $flagSet2 |= 2; }
if($isBreaking) { $flagSet2 |= 1; }
$flagSet1 = 0;
if($tagName eq "br") { $flagSet1 |= 1; }
if($tagName eq "p") { $flagSet1 |= 2; }
$flagSet0 = 0;
if($isTagStart) { $flagSet0 |= 1; }
if($nobrIsOpen) { $flagSet0 |= 2; }
# Planting the marker
$strip .= "\x00\x0F" . chr($flagSet2) . chr($flagSet1) . chr($flagSet0) . "\x0F\x00";
}
# Moving the pointer (tag end position + content length)
$i = $te + $cl;
# Eating crs & lfs after dropped tag
if($conf->{tagLf} && $dropTag) {
while(1) {
if(substr($$text, $i + 1, 1) eq "\r") { $i++; } elsif(substr($$text, $i + 1, 1) eq "\n") { $i++; last; } else { last }
}
}
}
} else {
# This is not a tag, just add the "<" to result
$strip .= $c;
}
last if($i == length($$text));
$i++;
}
}
# ==Find where tag ends
sub tagend($$$) {
my ($text, $i) = @_;
my $gotcha = 0;
my $quote = 0;
$i |= 0;
while (1) {
if (substr($$text, $i, 1) eq '"') { $quote ^= 1; }
if (!$quote && substr($$text, $i, 1) eq '>') { $gotcha = $i; }
last if ($i == length($$text) || $gotcha);
$i++;
}
return $gotcha;
}
# ==Bring everything back to HTML
sub planttags($$) {
my ($class, $result) = @_;
my $i = 0;
my $max = length($strip);
my $ctag = 0;
my $step;
while (1) {
if($i < $max - 2 && substr($strip, $i, 2) eq "\x00\x0F") {
$result->{text} .= $$tags[$ctag]->{body};
if($$tags[$ctag]->{content}) { $result->{text} .= $$tags[$ctag]->{content}; }
$i += $markLength;
$ctag++;
} else {
if($i < $max - 2) { $step = index($strip, "\x00\x0F", $i) - $i; } else { $step = $max - $i; }
if($step < 0) { $step = $max - $i; }
if($step >= 0) {
$result->{text} .= substr($strip, $i, $step);
$i += $step;
}
}
last if($i == $max);
}
}
# ==Bring the text to plain mode==
sub vanish($$) {
my($class, $text) = @_;
$$text =~ s/«|“|„|‘|‚|"|»|”|“|’|«|“|„|‘|‚|"|»|”|’|«|“|„|‘|‚|"|»|”|’/"/ig;
$$text =~ s/ | | / /ig;
$$text =~ s/—|–|—|–|—|–/-/ig;
$$text =~ s/…|…|…/.../ig;
$$text =~ s/©|©|©/(c)/ig;
$$text =~ s/®|®|®/(r)/ig;
$$text =~ s/¼|¼|¼/1\/4/ig;
$$text =~ s/½|½|½/1\/2/ig;
$$text =~ s/¾|¾|¾/3\/4/ig;
}
# ==Parse the tagsAllow string advanced format==
sub parseTagsAllowString($$) {
my($class, $string) = @_;
return {tagsAllow=>{}, tagsDenyAllAttributes=>0} if(!$string);
my $tagsAllow = {};
my $tagsDenyAllAttributes = 0;
# Should I deny all tag attributes by default?
if(substr($string,0,1) eq '|') {
$tagsDenyAllAttributes = 1;
substr($string,0,1) = '';
};
# Parsing the Configuration String
while($string =~ /([a-z:|]+)/ig) {
my $tBody = $1;
my ($tagName) = ($tBody =~ /^([a-z]+)/i)[0];
last if(!$tagName);
my $attrList = ();
$tagsAllow->{$tagName}->{val}=1;
if($tBody =~ /^$tagName\|$/i) {
$tagsAllow->{$tagName}->{denyAllAttributes}=1;
} elsif($tBody =~ /^$tagName\:$/i) {
$tagsAllow->{$tagName}->{allowAllAttributes}=1;
} else {
while($tBody =~ /:([a-z]+)/ig) {
$tagsAllow->{$tagName}->{validAttributes}->{$1}=1;
}
while($tBody =~ /\|([a-z]+)/ig) {
if(!$tagsAllow->{$tagName}->{validAttributes}->{$1}) {
$tagsAllow->{$tagName}->{invalidAttributes}->{$1}=1;
}
}
}
}
return {tagsAllow=>$tagsAllow, tagsDenyAllAttributes=>$tagsDenyAllAttributes};
}
# ==Parse the tagsAllow string advanced format==
sub parseTagsDenyString($$) {
my($class, $string) = @_;
return {} if(!$string);
my $tagsDeny = {};
while($string =~ /([a-z]+)/ig) {
$tagsDeny->{$1}->{val}=1;
}
return $tagsDeny;
}
return 1; 
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