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[phpwiki-checkins] CVS: phpwiki/lib transform.php,1.17,1.18
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From: Geoffrey T. D. <da...@us...> - 2001-03-02 00:22:53
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Update of /cvsroot/phpwiki/phpwiki/lib
In directory usw-pr-cvs1:/tmp/cvs-serv19995/lib
Modified Files:
transform.php
Log Message:
Attempts to clean up generated HTML.
WikiTransform::SetHTMLMode():
Eliminate the $tagtype argument, since somewhere along the line it
had lost all meaning.
Check when pushing nested elements that the top-level element is of
a type which can contain other block-level elements. Elements of type
<p>, and <pre>, among others, are not allowed to contain other
block-level elements.
wtm_list_dl:
Fix bug (which manifested itself only with non-empty <dt>s).
Some remaining problems which perhaps should be addressed:
Wtm_title_search, wtm_fulltext_search, wtm_mostpopular as well
as some of the the magic phpwiki: links (the ones which generate
forms) all generate some sort of block-level HTML element (either
<form>s or <dl>s.) As noted above, these are not allowed within
<p> elements (and others).
Bold/italics: __Bold ''BoldItalic__ Italic''
... it's contrived, but it will generate improperly nested HTML.
Index: transform.php
===================================================================
RCS file: /cvsroot/phpwiki/phpwiki/lib/transform.php,v
retrieving revision 1.17
retrieving revision 1.18
diff -C2 -r1.17 -r1.18
*** transform.php 2001/02/15 21:37:08 1.17
--- transform.php 2001/03/02 00:24:17 1.18
***************
*** 33,50 ****
function SetHTMLMode($tag, $tagtype, $level)
! Wiki HTML output can, at any given time, be in only one mode.
! It will be something like Unordered List, Preformatted Text,
! plain text etc. When we change modes we have to issue close tags
! for one mode and start tags for another.
! SetHTMLMode takes care of this.
!
! $tag ... HTML tag to insert
! If $tag is an array, first element give tag, second element
! is a hash containing arguments for the tag.
! $tagtype ... ZERO_LEVEL - close all open tags before inserting $tag
! NESTED_LEVEL - close tags until depths match
! $level ... nesting level (depth) of $tag
! nesting is arbitrary limited to 10 levels
function do_transform($html, $content)
contains main-loop and calls transformer functions
--- 33,64 ----
function SetHTMLMode($tag, $tagtype, $level)
! This is a helper function used to keep track of what HTML
! block-level element we are currently processing.
! Block-level elements are things like paragraphs "<p>",
! pre-formatted text "<pre>", and the various list elements:
! "<ul>", "<ol>" and "<dl>". Note that some of these elements
! can be nested, while others can not. (In particular, according to
! the HTML 4.01 specification, a paragraph "<p>" element is not
! allowed to contain any other block-level elements. Also <pre>,
! <li>, <dt>, <dd>, <h1> ... have this same restriction.)
!
! SetHTMLMode generates whatever HTML is necessary to get us into
! the requested element type at the requested nesting level.
!
! $tag ... type of HTML element to open.
! If $tag is an array, $tag[0] gives the element type,
! and $tag[1] should be a hash containing attribute-value
! pairs for the element.
!
! If $tag is the empty string, all open elements (down to the
! level requested by $level) are closed. Use
! SetHTMLMode('',0) to close all open block-level elements.
!
! $level ... requested nesting level for current element.
! The nesting level for top level block is one (which is
! the default).
+ Nesting is arbitrary limited to 10 levels
+
function do_transform($html, $content)
contains main-loop and calls transformer functions
***************
*** 82,86 ****
// sets current mode like list, preformatted text, plain text, ...
// takes care of closing (open) tags
! function SetHTMLMode($tag, $tagtype, $level)
{
if (is_array($tag)) {
--- 96,100 ----
// sets current mode like list, preformatted text, plain text, ...
// takes care of closing (open) tags
! function SetHTMLMode($tag, $level = 1)
{
if (is_array($tag)) {
***************
*** 96,153 ****
$retvar = '';
! if ($tagtype == ZERO_LEVEL) {
! // empty the stack until $level == 0;
! if ($tag == $this->stack->top()) {
! return; // same tag? -> nothing to do
! }
! while ($this->stack->cnt() > 0) {
! $closetag = $this->stack->pop();
! $retvar .= "</$closetag>\n";
! }
!
! if ($tag) {
! $retvar .= StartTag($tag, $args) . "\n";
! $this->stack->push($tag);
! }
!
! } elseif ($tagtype == NESTED_LEVEL) {
! if ($level <= $this->stack->cnt()) {
! // $tag has fewer nestings (old: tabs) than stack,
! // reduce stack to that tab count
! while ($this->stack->cnt() > $level) {
! $closetag = $this->stack->pop();
! if ($closetag == false) {
! //echo "bounds error in tag stack";
! break;
! }
! $retvar .= "</$closetag>\n";
! }
!
! // if list type isn't the same,
! // back up one more and push new tag
! if ($tag != $this->stack->top()) {
! $closetag = $this->stack->pop();
! $retvar .= "</$closetag>" . StartTag($tag, $args) . "\n";
! $this->stack->push($tag);
! }
! } else { // $level > $this->stack->cnt()
! // we add the diff to the stack
! // stack might be zero
! while ($this->stack->cnt() < $level) {
! $retvar .= StartTag($tag, $args) . "\n";
! $this->stack->push($tag);
! if ($this->stack->cnt() > 10) {
! // arbitrarily limit tag nesting
! ExitWiki(gettext ("Stack bounds exceeded in SetHTMLOutputMode"));
! }
! }
}
-
- } else { // unknown $tagtype
- ExitWiki ("Passed bad tag type value in SetHTMLOutputMode");
}
!
return $this->token($retvar);
}
--- 110,152 ----
$retvar = '';
! if ($level <= $this->stack->cnt()) {
! // $tag has fewer nestings (old: tabs) than stack,
! // reduce stack to that tab count
! while ($this->stack->cnt() > $level) {
! $closetag = $this->stack->pop();
! assert('$closetag != false');
! $retvar .= "</$closetag>\n";
! }
! // if list type isn't the same,
! // back up one more and push new tag
! if ($tag && $tag != $this->stack->top()) {
! $closetag = $this->stack->pop();
! $retvar .= "</$closetag>" . StartTag($tag, $args) . "\n";
! $this->stack->push($tag);
! }
! } else {// $level > $this->stack->cnt()
! // Test for and close top level elements which are not allowed to contain
! // other block-level elements.
! if ($this->stack->cnt() == 1 and
! preg_match('/^(p|pre|h\d)$/i', $this->stack->top()))
! {
! $closetag = $this->stack->pop();
! $retvar .= "</$closetag>";
! }
!
! // we add the diff to the stack
! // stack might be zero
! while ($this->stack->cnt() < $level) {
! $retvar .= StartTag($tag, $args) . "\n";
! $this->stack->push($tag);
! if ($this->stack->cnt() > 10) {
! // arbitrarily limit tag nesting
! ExitWiki(gettext ("Stack bounds exceeded in SetHTMLOutputMode"));
! }
}
}
!
return $this->token($retvar);
}
***************
*** 173,179 ****
$line = $this->content[$lnum];
! // blank lines clear the current mode
if (!strlen($line) || $line == "\r") {
! $html .= $this->SetHTMLMode('', ZERO_LEVEL, 0);
continue;
}
--- 172,178 ----
$line = $this->content[$lnum];
! // blank lines clear the current mode (to force new paragraph)
if (!strlen($line) || $line == "\r") {
! $html .= $this->SetHTMLMode('', 0);
continue;
}
***************
*** 206,210 ****
}
// close all tags
! $html .= $this->SetHTMLMode('', ZERO_LEVEL, 0);
return $this->untokenize($html);
--- 205,209 ----
}
// close all tags
! $html .= $this->SetHTMLMode('', 0);
return $this->untokenize($html);
***************
*** 486,493 ****
// has to be registereed before list OL
function wtm_list_ul($line, &$trfrm) {
! if (preg_match("/^([#*]*\*)[^#]/", $line, $matches)) {
$numtabs = strlen($matches[1]);
$line = preg_replace("/^([#*]*\*)/", '', $line);
! $html = $trfrm->SetHTMLMode('ul', NESTED_LEVEL, $numtabs) . '<li>';
$line = $html . $line;
}
--- 485,492 ----
// has to be registereed before list OL
function wtm_list_ul($line, &$trfrm) {
! if (preg_match("/^([#*;]*\*)[^#]/", $line, $matches)) {
$numtabs = strlen($matches[1]);
$line = preg_replace("/^([#*]*\*)/", '', $line);
! $html = $trfrm->SetHTMLMode('ul', $numtabs) . '<li>';
$line = $html . $line;
}
***************
*** 497,504 ****
// ordered lists <OL>: "#"
function wtm_list_ol($line, &$trfrm) {
! if (preg_match("/^([#*]*\#)/", $line, $matches)) {
$numtabs = strlen($matches[1]);
$line = preg_replace("/^([#*]*\#)/", "", $line);
! $html = $trfrm->SetHTMLMode('ol', NESTED_LEVEL, $numtabs) . '<li>';
$line = $html . $line;
}
--- 496,503 ----
// ordered lists <OL>: "#"
function wtm_list_ol($line, &$trfrm) {
! if (preg_match("/^([#*;]*\#)/", $line, $matches)) {
$numtabs = strlen($matches[1]);
$line = preg_replace("/^([#*]*\#)/", "", $line);
! $html = $trfrm->SetHTMLMode('ol', $numtabs) . '<li>';
$line = $html . $line;
}
***************
*** 509,517 ****
// definition lists <DL>: ";text:text"
function wtm_list_dl($line, &$trfrm) {
! if (preg_match("/(^;+)(.*?):(.*$)/", $line, $matches)) {
$numtabs = strlen($matches[1]);
! $line = $trfrm->SetHTMLMode('dl', NESTED_LEVEL, $numtabs);
if(trim($matches[2]))
! $line = '<dt>' . $matches[2];
$line .= '<dd>' . $matches[3];
}
--- 508,516 ----
// definition lists <DL>: ";text:text"
function wtm_list_dl($line, &$trfrm) {
! if (preg_match("/^([#*;]*;)(.*?):(.*$)/", $line, $matches)) {
$numtabs = strlen($matches[1]);
! $line = $trfrm->SetHTMLMode('dl', $numtabs);
if(trim($matches[2]))
! $line .= '<dt>' . $matches[2];
$line .= '<dd>' . $matches[3];
}
***************
*** 522,526 ****
function wtm_preformatted($line, &$trfrm) {
if (preg_match("/^\s+/", $line)) {
! $line = $trfrm->SetHTMLMode('pre', ZERO_LEVEL, 0) . $line;
}
return $line;
--- 521,525 ----
function wtm_preformatted($line, &$trfrm) {
if (preg_match("/^\s+/", $line)) {
! $line = $trfrm->SetHTMLMode('pre') . $line;
}
return $line;
***************
*** 535,539 ****
elseif($whichheading[1] == '!!!') $heading = 'h1';
$line = preg_replace("/^!+/", '', $line);
! $line = $trfrm->SetHTMLMode($heading, ZERO_LEVEL, 0) . $line;
}
return $line;
--- 534,538 ----
elseif($whichheading[1] == '!!!') $heading = 'h1';
$line = preg_replace("/^!+/", '', $line);
! $line = $trfrm->SetHTMLMode($heading) . $line;
}
return $line;
***************
*** 572,577 ****
'cellpadding' => 1,
'cellspacing' => 1,
! 'border' => 1)),
! ZERO_LEVEL, 0) .
$row;
}
--- 571,575 ----
'cellpadding' => 1,
'cellspacing' => 1,
! 'border' => 1))) .
$row;
}
***************
*** 582,588 ****
function wtm_hr($line, &$trfrm) {
if (preg_match('/^-{4,}(.*)$/', $line, $m)) {
! $line = $trfrm->SetHTMLMode('', ZERO_LEVEL, 0) . '<hr>';
if ($m[1])
! $line .= $trfrm->SetHTMLMode('p', ZERO_LEVEL, 0) . $m[1];
}
return $line;
--- 580,586 ----
function wtm_hr($line, &$trfrm) {
if (preg_match('/^-{4,}(.*)$/', $line, $m)) {
! $line = $trfrm->SetHTMLMode('', 0) . '<hr>';
if ($m[1])
! $line .= $trfrm->SetHTMLMode('p') . $m[1];
}
return $line;
***************
*** 591,595 ****
// default mode: simple text paragraph
function wtm_paragraph($line, &$trfrm) {
! $line = $trfrm->SetHTMLMode('p', ZERO_LEVEL, 0) . $line;
return $line;
}
--- 589,593 ----
// default mode: simple text paragraph
function wtm_paragraph($line, &$trfrm) {
! $line = $trfrm->SetHTMLMode('p') . $line;
return $line;
}
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