jro_apps/redmine Commit - r1202:a92cce385105

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# vim:ts=4:sw=4:

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# vim:ts=4:sw=4:

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# = RedCloth - Textile and Markdown Hybrid for Ruby

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# = RedCloth - Textile and Markdown Hybrid for Ruby

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#

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#

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# Homepage:: http://whytheluckystiff.net/ruby/redcloth/

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# Homepage:: http://whytheluckystiff.net/ruby/redcloth/

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# Author:: why the lucky stiff (http://whytheluckystiff.net/)

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# Author:: why the lucky stiff (http://whytheluckystiff.net/)

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# Copyright:: (cc) 2004 why the lucky stiff (and his puppet organizations.)

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# Copyright:: (cc) 2004 why the lucky stiff (and his puppet organizations.)

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# License:: BSD

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# License:: BSD

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#

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#

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# (see http://hobix.com/textile/ for a Textile Reference.)

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# (see http://hobix.com/textile/ for a Textile Reference.)

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#

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#

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# Based on (and also inspired by) both:

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# Based on (and also inspired by) both:

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#

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#

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# PyTextile: http://diveintomark.org/projects/textile/textile.py.txt

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# PyTextile: http://diveintomark.org/projects/textile/textile.py.txt

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# Textism for PHP: http://www.textism.com/tools/textile/

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# Textism for PHP: http://www.textism.com/tools/textile/

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#

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#

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#

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#

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# = RedCloth

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# = RedCloth

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#

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#

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# RedCloth is a Ruby library for converting Textile and/or Markdown

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# RedCloth is a Ruby library for converting Textile and/or Markdown

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# into HTML. You can use either format, intermingled or separately.

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# into HTML. You can use either format, intermingled or separately.

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# You can also extend RedCloth to honor your own custom text stylings.

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# You can also extend RedCloth to honor your own custom text stylings.

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#

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#

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# RedCloth users are encouraged to use Textile if they are generating

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# RedCloth users are encouraged to use Textile if they are generating

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# HTML and to use Markdown if others will be viewing the plain text.

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# HTML and to use Markdown if others will be viewing the plain text.

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#

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#

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# == What is Textile?

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# == What is Textile?

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#

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#

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# Textile is a simple formatting style for text

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# Textile is a simple formatting style for text

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# documents, loosely based on some HTML conventions.

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# documents, loosely based on some HTML conventions.

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#

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#

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# == Sample Textile Text

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# == Sample Textile Text

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#

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#

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# h2. This is a title

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# h2. This is a title

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#

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#

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# h3. This is a subhead

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# h3. This is a subhead

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#

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#

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# This is a bit of paragraph.

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# This is a bit of paragraph.

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#

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#

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# bq. This is a blockquote.

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# bq. This is a blockquote.

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#

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#

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# = Writing Textile

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# = Writing Textile

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#

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#

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# A Textile document consists of paragraphs. Paragraphs

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# A Textile document consists of paragraphs. Paragraphs

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# can be specially formatted by adding a small instruction

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# can be specially formatted by adding a small instruction

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# to the beginning of the paragraph.

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# to the beginning of the paragraph.

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#

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#

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# h[n]. Header of size [n].

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# h[n]. Header of size [n].

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# bq. Blockquote.

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# bq. Blockquote.

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# # Numeric list.

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# # Numeric list.

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# * Bulleted list.

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# * Bulleted list.

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#

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#

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# == Quick Phrase Modifiers

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# == Quick Phrase Modifiers

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#

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#

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# Quick phrase modifiers are also included, to allow formatting

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# Quick phrase modifiers are also included, to allow formatting

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# of small portions of text within a paragraph.

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# of small portions of text within a paragraph.

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#

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#

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# \_emphasis\_

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# \_emphasis\_

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# \_\_italicized\_\_

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# \_\_italicized\_\_

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# \*strong\*

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# \*strong\*

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# \*\*bold\*\*

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# \*\*bold\*\*

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# ??citation??

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# ??citation??

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# -deleted text-

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# -deleted text-

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# +inserted text+

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# +inserted text+

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# ^superscript^

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# ^superscript^

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# ~subscript~

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# ~subscript~

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# @code@

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# @code@

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# %(classname)span%

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# %(classname)span%

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#

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#

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# ==notextile== (leave text alone)

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# ==notextile== (leave text alone)

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#

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#

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# == Links

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# == Links

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#

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#

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# To make a hypertext link, put the link text in "quotation

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# To make a hypertext link, put the link text in "quotation

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# marks" followed immediately by a colon and the URL of the link.

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# marks" followed immediately by a colon and the URL of the link.

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#

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#

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# Optional: text in (parentheses) following the link text,

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# Optional: text in (parentheses) following the link text,

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# but before the closing quotation mark, will become a Title

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# but before the closing quotation mark, will become a Title

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# attribute for the link, visible as a tool tip when a cursor is above it.

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# attribute for the link, visible as a tool tip when a cursor is above it.

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#

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#

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# Example:

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# Example:

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#

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#

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# "This is a link (This is a title) ":http://www.textism.com

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# "This is a link (This is a title) ":http://www.textism.com

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#

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#

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# Will become:

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# Will become:

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#

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#

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# <a href="http://www.textism.com" title="This is a title">This is a link</a>

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# <a href="http://www.textism.com" title="This is a title">This is a link</a>

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#

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#

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# == Images

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# == Images

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#

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#

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# To insert an image, put the URL for the image inside exclamation marks.

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# To insert an image, put the URL for the image inside exclamation marks.

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#

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#

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# Optional: text that immediately follows the URL in (parentheses) will

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# Optional: text that immediately follows the URL in (parentheses) will

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# be used as the Alt text for the image. Images on the web should always

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# be used as the Alt text for the image. Images on the web should always

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# have descriptive Alt text for the benefit of readers using non-graphical

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# have descriptive Alt text for the benefit of readers using non-graphical

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# browsers.

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# browsers.

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#

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#

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# Optional: place a colon followed by a URL immediately after the

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# Optional: place a colon followed by a URL immediately after the

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# closing ! to make the image into a link.

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# closing ! to make the image into a link.

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#

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#

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# Example:

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# Example:

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#

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#

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# !http://www.textism.com/common/textist.gif(Textist)!

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# !http://www.textism.com/common/textist.gif(Textist)!

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#

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#

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# Will become:

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# Will become:

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#

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#

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# <img src="http://www.textism.com/common/textist.gif" alt="Textist" />

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# <img src="http://www.textism.com/common/textist.gif" alt="Textist" />

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#

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#

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# With a link:

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# With a link:

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#

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#

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# !/common/textist.gif(Textist)!:http://textism.com

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# !/common/textist.gif(Textist)!:http://textism.com

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#

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#

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# Will become:

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# Will become:

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#

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#

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# <a href="http://textism.com"><img src="/common/textist.gif" alt="Textist" /></a>

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# <a href="http://textism.com"><img src="/common/textist.gif" alt="Textist" /></a>

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#

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#

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# == Defining Acronyms

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# == Defining Acronyms

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#

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#

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# HTML allows authors to define acronyms via the tag. The definition appears as a

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# HTML allows authors to define acronyms via the tag. The definition appears as a

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# tool tip when a cursor hovers over the acronym. A crucial aid to clear writing,

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# tool tip when a cursor hovers over the acronym. A crucial aid to clear writing,

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# this should be used at least once for each acronym in documents where they appear.

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# this should be used at least once for each acronym in documents where they appear.

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#

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#

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# To quickly define an acronym in Textile, place the full text in (parentheses)

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# To quickly define an acronym in Textile, place the full text in (parentheses)

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# immediately following the acronym.

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# immediately following the acronym.

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#

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#

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# Example:

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# Example:

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#

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#

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# ACLU(American Civil Liberties Union)

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# ACLU(American Civil Liberties Union)

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#

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#

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# Will become:

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# Will become:

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#

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#

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# <acronym title="American Civil Liberties Union">ACLU</acronym>

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# <acronym title="American Civil Liberties Union">ACLU</acronym>

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#

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#

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# == Adding Tables

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# == Adding Tables

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#

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#

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# In Textile, simple tables can be added by seperating each column by

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# In Textile, simple tables can be added by seperating each column by

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# a pipe.

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# a pipe.

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#

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#

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# |a|simple|table|row|

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# |a|simple|table|row|

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# |And|Another|table|row|

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# |And|Another|table|row|

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#

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#

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# Attributes are defined by style definitions in parentheses.

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# Attributes are defined by style definitions in parentheses.

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#

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#

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# table(border:1px solid black).

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# table(border:1px solid black).

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# (background:#ddd;color:red). |{}| | | |

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# (background:#ddd;color:red). |{}| | | |

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#

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#

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# == Using RedCloth

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# == Using RedCloth

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#

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#

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# RedCloth is simply an extension of the String class, which can handle

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# RedCloth is simply an extension of the String class, which can handle

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# Textile formatting. Use it like a String and output HTML with its

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# Textile formatting. Use it like a String and output HTML with its

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# RedCloth#to_html method.

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# RedCloth#to_html method.

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#

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#

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# doc = RedCloth.new "

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# doc = RedCloth.new "

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#

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#

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# h2. Test document

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# h2. Test document

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#

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#

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# Just a simple test."

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# Just a simple test."

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#

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#

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# puts doc.to_html

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# puts doc.to_html

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#

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#

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# By default, RedCloth uses both Textile and Markdown formatting, with

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# By default, RedCloth uses both Textile and Markdown formatting, with

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# Textile formatting taking precedence. If you want to turn off Markdown

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# Textile formatting taking precedence. If you want to turn off Markdown

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# formatting, to boost speed and limit the processor:

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# formatting, to boost speed and limit the processor:

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#

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#

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# class RedCloth::Textile.new( str )

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# class RedCloth::Textile.new( str )

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class RedCloth < String

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class RedCloth < String

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VERSION = '3.0.4'

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VERSION = '3.0.4'

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DEFAULT_RULES = [:textile, :markdown]

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DEFAULT_RULES = [:textile, :markdown]

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#

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#

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# Two accessor for setting security restrictions.

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# Two accessor for setting security restrictions.

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#

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#

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# This is a nice thing if you're using RedCloth for

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# This is a nice thing if you're using RedCloth for

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# formatting in public places (e.g. Wikis) where you

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# formatting in public places (e.g. Wikis) where you

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# don't want users to abuse HTML for bad things.

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# don't want users to abuse HTML for bad things.

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#

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#

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# If +:filter_html+ is set, HTML which wasn't

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# If +:filter_html+ is set, HTML which wasn't

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# created by the Textile processor will be escaped.

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# created by the Textile processor will be escaped.

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#

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#

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# If +:filter_styles+ is set, it will also disable

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# If +:filter_styles+ is set, it will also disable

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# the style markup specifier. ('{color: red}')

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# the style markup specifier. ('{color: red}')

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#

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#

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attr_accessor :filter_html, :filter_styles

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attr_accessor :filter_html, :filter_styles

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#

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#

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# Accessor for toggling hard breaks.

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# Accessor for toggling hard breaks.

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#

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#

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# If +:hard_breaks+ is set, single newlines will

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# If +:hard_breaks+ is set, single newlines will

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# be converted to HTML break tags. This is the

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# be converted to HTML break tags. This is the

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# default behavior for traditional RedCloth.

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# default behavior for traditional RedCloth.

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#

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#

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attr_accessor :hard_breaks

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attr_accessor :hard_breaks

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# Accessor for toggling lite mode.

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# Accessor for toggling lite mode.

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#

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#

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# In lite mode, block-level rules are ignored. This means

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# In lite mode, block-level rules are ignored. This means

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# that tables, paragraphs, lists, and such aren't available.

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# that tables, paragraphs, lists, and such aren't available.

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# Only the inline markup for bold, italics, entities and so on.

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# Only the inline markup for bold, italics, entities and so on.

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#

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#

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# r = RedCloth.new( "And then? She *fell*!", [:lite_mode] )

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# r = RedCloth.new( "And then? She *fell*!", [:lite_mode] )

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# r.to_html

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# r.to_html

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# #=> "And then? She <strong>fell</strong>!"

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# #=> "And then? She <strong>fell</strong>!"

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#

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#

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attr_accessor :lite_mode

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attr_accessor :lite_mode

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#

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#

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# Accessor for toggling span caps.

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# Accessor for toggling span caps.

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#

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#

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# Textile places `span' tags around capitalized

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# Textile places `span' tags around capitalized

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# words by default, but this wreaks havoc on Wikis.

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# words by default, but this wreaks havoc on Wikis.

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# If +:no_span_caps+ is set, this will be

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# If +:no_span_caps+ is set, this will be

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# suppressed.

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# suppressed.

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#

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#

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attr_accessor :no_span_caps

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attr_accessor :no_span_caps

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#

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#

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# Establishes the markup predence. Available rules include:

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# Establishes the markup predence. Available rules include:

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#

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#

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# == Textile Rules

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# == Textile Rules

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#

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#

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# The following textile rules can be set individually. Or add the complete

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# The following textile rules can be set individually. Or add the complete

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# set of rules with the single :textile rule, which supplies the rule set in

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# set of rules with the single :textile rule, which supplies the rule set in

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# the following precedence:

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# the following precedence:

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#

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#

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# refs_textile:: Textile references (i.e. [hobix]http://hobix.com/)

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# refs_textile:: Textile references (i.e. [hobix]http://hobix.com/)

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# block_textile_table:: Textile table block structures

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# block_textile_table:: Textile table block structures

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# block_textile_lists:: Textile list structures

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# block_textile_lists:: Textile list structures

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# block_textile_prefix:: Textile blocks with prefixes (i.e. bq., h2., etc.)

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# block_textile_prefix:: Textile blocks with prefixes (i.e. bq., h2., etc.)

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# inline_textile_image:: Textile inline images

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# inline_textile_image:: Textile inline images

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# inline_textile_link:: Textile inline links

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# inline_textile_link:: Textile inline links

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# inline_textile_span:: Textile inline spans

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# inline_textile_span:: Textile inline spans

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# glyphs_textile:: Textile entities (such as em-dashes and smart quotes)

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# glyphs_textile:: Textile entities (such as em-dashes and smart quotes)

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#

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#

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# == Markdown

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# == Markdown

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#

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#

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# refs_markdown:: Markdown references (for example: [hobix]: http://hobix.com/)

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# refs_markdown:: Markdown references (for example: [hobix]: http://hobix.com/)

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# block_markdown_setext:: Markdown setext headers

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# block_markdown_setext:: Markdown setext headers

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# block_markdown_atx:: Markdown atx headers

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# block_markdown_atx:: Markdown atx headers

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# block_markdown_rule:: Markdown horizontal rules

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# block_markdown_rule:: Markdown horizontal rules

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# block_markdown_bq:: Markdown blockquotes

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# block_markdown_bq:: Markdown blockquotes

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# block_markdown_lists:: Markdown lists

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# block_markdown_lists:: Markdown lists

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# inline_markdown_link:: Markdown links

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# inline_markdown_link:: Markdown links

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attr_accessor :rules

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attr_accessor :rules

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# Returns a new RedCloth object, based on _string_ and

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# Returns a new RedCloth object, based on _string_ and

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# enforcing all the included _restrictions_.

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# enforcing all the included _restrictions_.

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#

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#

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# r = RedCloth.new( "h1. A <b>bold</b> man", [:filter_html] )

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# r = RedCloth.new( "h1. A <b>bold</b> man", [:filter_html] )

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# r.to_html

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# r.to_html

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# #=>"<h1>A <b>bold</b> man</h1>"

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# #=>"<h1>A <b>bold</b> man</h1>"

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#

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#

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def initialize( string, restrictions = [] )

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def initialize( string, restrictions = [] )

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restrictions.each { |r| method( "#{ r }=" ).call( true ) }

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restrictions.each { |r| method( "#{ r }=" ).call( true ) }

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super( string )

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super( string )

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end

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end

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#

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#

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# Generates HTML from the Textile contents.

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# Generates HTML from the Textile contents.

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#

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#

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# r = RedCloth.new( "And then? She *fell*!" )

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# r = RedCloth.new( "And then? She *fell*!" )

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# r.to_html( true )

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# r.to_html( true )

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# #=>"And then? She <strong>fell</strong>!"

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# #=>"And then? She <strong>fell</strong>!"

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#

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#

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def to_html( *rules )

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def to_html( *rules )

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rules = DEFAULT_RULES if rules.empty?

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rules = DEFAULT_RULES if rules.empty?

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# make our working copy

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# make our working copy

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text = self.dup

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text = self.dup

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@urlrefs = {}

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@urlrefs = {}

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@shelf = []

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@shelf = []

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textile_rules = [:refs_textile, :block_textile_table, :block_textile_lists,

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textile_rules = [:refs_textile, :block_textile_table, :block_textile_lists,

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:block_textile_prefix, :inline_textile_image, :inline_textile_link,

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:block_textile_prefix, :inline_textile_image, :inline_textile_link,

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:inline_textile_code, :inline_textile_span]

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:inline_textile_code, :inline_textile_span]

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markdown_rules = [:refs_markdown, :block_markdown_setext, :block_markdown_atx, :block_markdown_rule,

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markdown_rules = [:refs_markdown, :block_markdown_setext, :block_markdown_atx, :block_markdown_rule,

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:block_markdown_bq, :block_markdown_lists,

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:block_markdown_bq, :block_markdown_lists,

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:inline_markdown_reflink, :inline_markdown_link]

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:inline_markdown_reflink, :inline_markdown_link]

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@rules = rules.collect do |rule|

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@rules = rules.collect do |rule|

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case rule

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case rule

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when :markdown

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when :markdown

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markdown_rules

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markdown_rules

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when :textile

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when :textile

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textile_rules

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textile_rules

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else

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else

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rule

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rule

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end

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end

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end.flatten

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end.flatten

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# standard clean up

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# standard clean up

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incoming_entities text

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incoming_entities text

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clean_white_space text

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clean_white_space text

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# start processor

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# start processor

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@pre_list = []

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@pre_list = []

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rip_offtags text

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rip_offtags text

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no_textile text

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no_textile text

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escape_html_tags text

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hard_break text

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hard_break text

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unless @lite_mode

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unless @lite_mode

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refs text

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refs text

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blocks text

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blocks text

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end

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end

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inline text

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inline text

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smooth_offtags text

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smooth_offtags text

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retrieve text

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retrieve text

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text.gsub!( /<\/?notextile>/, '' )

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text.gsub!( /<\/?notextile>/, '' )

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text.gsub!( /x%x%/, '&' )

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text.gsub!( /x%x%/, '&' )

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clean_html text if filter_html

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clean_html text if filter_html

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text.strip!

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text.strip!

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text

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text

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end

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end

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#######

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#######

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private

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private

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#######

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#######

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#

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#

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# Mapping of 8-bit ASCII codes to HTML numerical entity equivalents.

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# Mapping of 8-bit ASCII codes to HTML numerical entity equivalents.

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# (from PyTextile)

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# (from PyTextile)

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#

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#

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TEXTILE_TAGS =

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TEXTILE_TAGS =

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[[128, 8364], [129, 0], [130, 8218], [131, 402], [132, 8222], [133, 8230],

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[[128, 8364], [129, 0], [130, 8218], [131, 402], [132, 8222], [133, 8230],

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[134, 8224], [135, 8225], [136, 710], [137, 8240], [138, 352], [139, 8249],

327

[134, 8224], [135, 8225], [136, 710], [137, 8240], [138, 352], [139, 8249],

327

[140, 338], [141, 0], [142, 0], [143, 0], [144, 0], [145, 8216], [146, 8217],

328

[140, 338], [141, 0], [142, 0], [143, 0], [144, 0], [145, 8216], [146, 8217],

328

[147, 8220], [148, 8221], [149, 8226], [150, 8211], [151, 8212], [152, 732],

329

[147, 8220], [148, 8221], [149, 8226], [150, 8211], [151, 8212], [152, 732],

329

[153, 8482], [154, 353], [155, 8250], [156, 339], [157, 0], [158, 0], [159, 376]].

330

[153, 8482], [154, 353], [155, 8250], [156, 339], [157, 0], [158, 0], [159, 376]].

330

331

collect! do |a, b|

332

collect! do |a, b|

332

[a.chr, ( b.zero? and "" or "&#{ b };" )]

333

[a.chr, ( b.zero? and "" or "&#{ b };" )]

333

end

334

end

334

335

#

336

#

336

# Regular expressions to convert to HTML.

337

# Regular expressions to convert to HTML.

337

#

338

#

338

A_HLGN = /(?:(?:<>|<|>|\=|[()]+)+)/

339

A_HLGN = /(?:(?:<>|<|>|\=|[()]+)+)/

339

A_VLGN = /[\-^~]/

340

A_VLGN = /[\-^~]/

340

C_CLAS = '(?:$[^)]+$)'

341

C_CLAS = '(?:$[^)]+$)'

341

C_LNGE = '(?:\[[^\]]+\])'

342

C_LNGE = '(?:\[[^\]]+\])'

342

C_STYL = '(?:\{[^}]+\})'

343

C_STYL = '(?:\{[^}]+\})'

343

S_CSPN = '(?:\\\\\d+)'

344

S_CSPN = '(?:\\\\\d+)'

344

S_RSPN = '(?:/\d+)'

345

S_RSPN = '(?:/\d+)'

345

A = "(?:#{A_HLGN}?#{A_VLGN}?|#{A_VLGN}?#{A_HLGN}?)"

346

A = "(?:#{A_HLGN}?#{A_VLGN}?|#{A_VLGN}?#{A_HLGN}?)"

346

S = "(?:#{S_CSPN}?#{S_RSPN}|#{S_RSPN}?#{S_CSPN}?)"

347

S = "(?:#{S_CSPN}?#{S_RSPN}|#{S_RSPN}?#{S_CSPN}?)"

347

C = "(?:#{C_CLAS}?#{C_STYL}?#{C_LNGE}?|#{C_STYL}?#{C_LNGE}?#{C_CLAS}?|#{C_LNGE}?#{C_STYL}?#{C_CLAS}?)"

348

C = "(?:#{C_CLAS}?#{C_STYL}?#{C_LNGE}?|#{C_STYL}?#{C_LNGE}?#{C_CLAS}?|#{C_LNGE}?#{C_STYL}?#{C_CLAS}?)"

348

# PUNCT = Regexp::quote( '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~' )

349

# PUNCT = Regexp::quote( '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~' )

349

PUNCT = Regexp::quote( '!"#$%&\'*+,-./:;=?@\\^_`|~' )

350

PUNCT = Regexp::quote( '!"#$%&\'*+,-./:;=?@\\^_`|~' )

350

PUNCT_NOQ = Regexp::quote( '!"#$&\',./:;=?@\\`|' )

351

PUNCT_NOQ = Regexp::quote( '!"#$&\',./:;=?@\\`|' )

351

PUNCT_Q = Regexp::quote( '*-_+^~%' )

352

PUNCT_Q = Regexp::quote( '*-_+^~%' )

352

HYPERLINK = '(\S+?)([^\w\s/;=\?]*?)(?=\s|<|$)'

353

HYPERLINK = '(\S+?)([^\w\s/;=\?]*?)(?=\s|<|$)'

353

354

# Text markup tags, don't conflict with block tags

355

# Text markup tags, don't conflict with block tags

355

SIMPLE_HTML_TAGS = [

356

SIMPLE_HTML_TAGS = [

356

'tt', 'b', 'i', 'big', 'small', 'em', 'strong', 'dfn', 'code',

357

'tt', 'b', 'i', 'big', 'small', 'em', 'strong', 'dfn', 'code',

357

'samp', 'kbd', 'var', 'cite', 'abbr', 'acronym', 'a', 'img', 'br',

358

'samp', 'kbd', 'var', 'cite', 'abbr', 'acronym', 'a', 'img', 'br',

358

'br', 'map', 'q', 'sub', 'sup', 'span', 'bdo'

359

'br', 'map', 'q', 'sub', 'sup', 'span', 'bdo'

359

]

360

]

360

361

QTAGS = [

362

QTAGS = [

362

['**', 'b', :limit],

363

['**', 'b', :limit],

363

['*', 'strong', :limit],

364

['*', 'strong', :limit],

364

['??', 'cite', :limit],

365

['??', 'cite', :limit],

365

['-', 'del', :limit],

366

['-', 'del', :limit],

366

['__', 'i', :limit],

367

['__', 'i', :limit],

367

['_', 'em', :limit],

368

['_', 'em', :limit],

368

['%', 'span', :limit],

369

['%', 'span', :limit],

369

['+', 'ins', :limit],

370

['+', 'ins', :limit],

370

['^', 'sup', :limit],

371

['^', 'sup', :limit],

371

['~', 'sub', :limit]

372

['~', 'sub', :limit]

372

]

373

]

373

QTAGS.collect! do |rc, ht, rtype|

374

QTAGS.collect! do |rc, ht, rtype|

374

rcq = Regexp::quote rc

375

rcq = Regexp::quote rc

375

re =

376

re =

376

case rtype

377

case rtype

377

when :limit

378

when :limit

378

/(\W)

379

/(^|[>\s])

379

(#{rcq})

380

(#{rcq})

380

(#{C})

381

(#{C})

381

(?::(\S+?))?

382

(?::(\S+?))?

382

(\~~S.*?~~\S|\S)

383

([^\s\-].*?[^\s\-]|\w)

383

#{rcq}

384

#{rcq}

384

(?=\W)/x

385

(?=[[:punct:]]|\s|$)/x

385

else

386

else

386

/(#{rcq})

387

/(#{rcq})

387

(#{C})

388

(#{C})

388

(?::(\S+))?

389

(?::(\S+))?

389

(\~~S.*?~~\S|\S)

390

([^\s\-].*?[^\s\-]|\w)

390

#{rcq}/xm

391

#{rcq}/xm

391

end

392

end

392

[rc, ht, re, rtype]

393

[rc, ht, re, rtype]

393

end

394

end

394

395

# Elements to handle

396

# Elements to handle

396

GLYPHS = [

397

GLYPHS = [

397

# [ /([^\s\[{(>])?\'([dmst]\b|ll\b|ve\b|\s|:|$)/, '\1’\2' ], # single closing

398

# [ /([^\s\[{(>])?\'([dmst]\b|ll\b|ve\b|\s|:|$)/, '\1’\2' ], # single closing

398

# [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)\'/, '\1’' ], # single closing

399

# [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)\'/, '\1’' ], # single closing

399

# [ /\'(?=[#{PUNCT_Q}]*(s\b|[\s#{PUNCT_NOQ}]))/, '’' ], # single closing

400

# [ /\'(?=[#{PUNCT_Q}]*(s\b|[\s#{PUNCT_NOQ}]))/, '’' ], # single closing

400

# [ /\'/, '‘' ], # single opening

401

# [ /\'/, '‘' ], # single opening

401

[ /</, '<' ], # less-than

402

[ /</, '<' ], # less-than

402

[ />/, '>' ], # greater-than

403

[ />/, '>' ], # greater-than

403

# [ /([^\s\[{(])?"(\s|:|$)/, '\1”\2' ], # double closing

404

# [ /([^\s\[{(])?"(\s|:|$)/, '\1”\2' ], # double closing

404

# [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)"/, '\1”' ], # double closing

405

# [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)"/, '\1”' ], # double closing

405

# [ /"(?=[#{PUNCT_Q}]*[\s#{PUNCT_NOQ}])/, '”' ], # double closing

406

# [ /"(?=[#{PUNCT_Q}]*[\s#{PUNCT_NOQ}])/, '”' ], # double closing

406

# [ /"/, '“' ], # double opening

407

# [ /"/, '“' ], # double opening

407

[ /\b( )?\.{3}/, '\1…' ], # ellipsis

408

[ /\b( )?\.{3}/, '\1…' ], # ellipsis

408

[ /\b([A-Z][A-Z0-9]{2,})\b(?:[(]([^)]*)[)])/, '<acronym title="\2">\1</acronym>' ], # 3+ uppercase acronym

409

[ /\b([A-Z][A-Z0-9]{2,})\b(?:[(]([^)]*)[)])/, '<acronym title="\2">\1</acronym>' ], # 3+ uppercase acronym

409

[ /(^|[^"][>\s])([A-Z][A-Z0-9 ]+[A-Z0-9])([^<A-Za-z0-9]|$)/, '\1<span class="caps">\2</span>\3', :no_span_caps ], # 3+ uppercase caps

410

[ /(^|[^"][>\s])([A-Z][A-Z0-9 ]+[A-Z0-9])([^<A-Za-z0-9]|$)/, '\1<span class="caps">\2</span>\3', :no_span_caps ], # 3+ uppercase caps

410

[ /(\.\s)?\s?--\s?/, '\1—' ], # em dash

411

[ /(\.\s)?\s?--\s?/, '\1—' ], # em dash

411

[ /\s->\s/, ' → ' ], # right arrow

412

[ /\s->\s/, ' → ' ], # right arrow

412

[ /\s-\s/, ' – ' ], # en dash

413

[ /\s-\s/, ' – ' ], # en dash

413

[ /(\d+) ?x ?(\d+)/, '\1×\2' ], # dimension sign

414

[ /(\d+) ?x ?(\d+)/, '\1×\2' ], # dimension sign

414

[ /\b ?[(\[]TM[\])]/i, '™' ], # trademark

415

[ /\b ?[(\[]TM[\])]/i, '™' ], # trademark

415

[ /\b ?[(\[]R[\])]/i, '®' ], # registered

416

[ /\b ?[(\[]R[\])]/i, '®' ], # registered

416

[ /\b ?[(\[]C[\])]/i, '©' ] # copyright

417

[ /\b ?[(\[]C[\])]/i, '©' ] # copyright

417

]

418

]

418

419

H_ALGN_VALS = {

420

H_ALGN_VALS = {

420

'<' => 'left',

421

'<' => 'left',

421

'=' => 'center',

422

'=' => 'center',

422

'>' => 'right',

423

'>' => 'right',

423

'<>' => 'justify'

424

'<>' => 'justify'

424

}

425

}

425

426

V_ALGN_VALS = {

427

V_ALGN_VALS = {

427

'^' => 'top',

428

'^' => 'top',

428

'-' => 'middle',

429

'-' => 'middle',

429

'~' => 'bottom'

430

'~' => 'bottom'

430

}

431

}

431

432

#

433

#

433

# Flexible HTML escaping

434

# Flexible HTML escaping

434

#

435

#

435

def htmlesc( str, mode )

436

def htmlesc( str, mode )

436

str.gsub!( '&', '&' )

437

str.gsub!( '&', '&' )

437

str.gsub!( '"', '"' ) if mode != :NoQuotes

438

str.gsub!( '"', '"' ) if mode != :NoQuotes

438

str.gsub!( "'", ''' ) if mode == :Quotes

439

str.gsub!( "'", ''' ) if mode == :Quotes

439

str.gsub!( '<', '<')

440

str.gsub!( '<', '<')

440

str.gsub!( '>', '>')

441

str.gsub!( '>', '>')

441

end

442

end

442

443

# Search and replace for Textile glyphs (quotes, dashes, other symbols)

444

# Search and replace for Textile glyphs (quotes, dashes, other symbols)

444

def pgl( text )

445

def pgl( text )

445

GLYPHS.each do |re, resub, tog|

446

GLYPHS.each do |re, resub, tog|

446

next if tog and method( tog ).call

447

next if tog and method( tog ).call

447

text.gsub! re, resub

448

text.gsub! re, resub

448

end

449

end

449

end

450

end

450

451

# Parses Textile attribute lists and builds an HTML attribute string

452

# Parses Textile attribute lists and builds an HTML attribute string

452

def pba( text_in, element = "" )

453

def pba( text_in, element = "" )

453

454

return '' unless text_in

455

return '' unless text_in

455

456

style = []

457

style = []

457

text = text_in.dup

458

text = text_in.dup

458

if element == 'td'

459

if element == 'td'

459

colspan = $1 if text =~ /\\(\d+)/

460

colspan = $1 if text =~ /\\(\d+)/

460

rowspan = $1 if text =~ /\/(\d+)/

461

rowspan = $1 if text =~ /\/(\d+)/

461

style << "vertical-align:#{ v_align( $& ) };" if text =~ A_VLGN

462

style << "vertical-align:#{ v_align( $& ) };" if text =~ A_VLGN

462

end

463

end

463

464

style << "#{ $1 };" if not filter_styles and

465

style << "#{ $1 };" if not filter_styles and

465

text.sub!( /\{([^}]*)\}/, '' )

466

text.sub!( /\{([^}]*)\}/, '' )

466

467

lang = $1 if

468

lang = $1 if

468

text.sub!( /\[([^)]+?)\]/, '' )

469

text.sub!( /\[([^)]+?)\]/, '' )

469

470

cls = $1 if

471

cls = $1 if

471

text.sub!( /$([^()]+?)$/, '' )

472

text.sub!( /$([^()]+?)$/, '' )

472

473

style << "padding-left:#{ $1.length }em;" if

474

style << "padding-left:#{ $1.length }em;" if

474

text.sub!( /([(]+)/, '' )

475

text.sub!( /([(]+)/, '' )

475

476

style << "padding-right:#{ $1.length }em;" if text.sub!( /([)]+)/, '' )

477

style << "padding-right:#{ $1.length }em;" if text.sub!( /([)]+)/, '' )

477

478

style << "text-align:#{ h_align( $& ) };" if text =~ A_HLGN

479

style << "text-align:#{ h_align( $& ) };" if text =~ A_HLGN

479

480

cls, id = $1, $2 if cls =~ /^(.*?)#(.*)$/

481

cls, id = $1, $2 if cls =~ /^(.*?)#(.*)$/

481

482

atts = ''

483

atts = ''

483

atts << " style=\"#{ style.join }\"" unless style.empty?

484

atts << " style=\"#{ style.join }\"" unless style.empty?

484

atts << " class=\"#{ cls }\"" unless cls.to_s.empty?

485

atts << " class=\"#{ cls }\"" unless cls.to_s.empty?

485

atts << " lang=\"#{ lang }\"" if lang

486

atts << " lang=\"#{ lang }\"" if lang

486

atts << " id=\"#{ id }\"" if id

487

atts << " id=\"#{ id }\"" if id

487

atts << " colspan=\"#{ colspan }\"" if colspan

488

atts << " colspan=\"#{ colspan }\"" if colspan

488

atts << " rowspan=\"#{ rowspan }\"" if rowspan

489

atts << " rowspan=\"#{ rowspan }\"" if rowspan

489

490

atts

491

atts

491

end

492

end

492

493

TABLE_RE = /^(?:table(_?#{S}#{A}#{C})\. ?\n)?^(#{A}#{C}\.? ?\|.*?\|)(\n\n|\Z)/m

494

TABLE_RE = /^(?:table(_?#{S}#{A}#{C})\. ?\n)?^(#{A}#{C}\.? ?\|.*?\|)(\n\n|\Z)/m

494

495

# Parses a Textile table block, building HTML from the result.

496

# Parses a Textile table block, building HTML from the result.

496

def block_textile_table( text )

497

def block_textile_table( text )

497

text.gsub!( TABLE_RE ) do |matches|

498

text.gsub!( TABLE_RE ) do |matches|

498

499

tatts, fullrow = $~[1..2]

500

tatts, fullrow = $~[1..2]

500

tatts = pba( tatts, 'table' )

501

tatts = pba( tatts, 'table' )

501

tatts = shelve( tatts ) if tatts

502

tatts = shelve( tatts ) if tatts

502

rows = []

503

rows = []

503

504

fullrow.

505

fullrow.

505

split( /\|$/m ).

506

split( /\|$/m ).

506

delete_if { |x| x.empty? }.

507

delete_if { |x| x.empty? }.

507

each do |row|

508

each do |row|

508

509

ratts, row = pba( $1, 'tr' ), $2 if row =~ /^(#{A}#{C}\. )(.*)/m

510

ratts, row = pba( $1, 'tr' ), $2 if row =~ /^(#{A}#{C}\. )(.*)/m

510

511

cells = []

512

cells = []

512

row.split( '|' ).each do |cell|

513

row.split( '|' ).each do |cell|

513

ctyp = 'd'

514

ctyp = 'd'

514

ctyp = 'h' if cell =~ /^_/

515

ctyp = 'h' if cell =~ /^_/

515

516

catts = ''

517

catts = ''

517

catts, cell = pba( $1, 'td' ), $2 if cell =~ /^(_?#{S}#{A}#{C}\. ?)(.*)/

518

catts, cell = pba( $1, 'td' ), $2 if cell =~ /^(_?#{S}#{A}#{C}\. ?)(.*)/

518

519

unless cell.strip.empty?

520

unless cell.strip.empty?

520

catts = shelve( catts ) if catts

521

catts = shelve( catts ) if catts

521

cells << "\t\t\t<t#{ ctyp }#{ catts }>#{ cell }</t#{ ctyp }>"

522

cells << "\t\t\t<t#{ ctyp }#{ catts }>#{ cell }</t#{ ctyp }>"

522

end

523

end

523

end

524

end

524

ratts = shelve( ratts ) if ratts

525

ratts = shelve( ratts ) if ratts

525

rows << "\t\t<tr#{ ratts }>\n#{ cells.join( "\n" ) }\n\t\t</tr>"

526

rows << "\t\t<tr#{ ratts }>\n#{ cells.join( "\n" ) }\n\t\t</tr>"

526

end

527

end

527

"\t<table#{ tatts }>\n#{ rows.join( "\n" ) }\n\t</table>\n\n"

528

"\t<table#{ tatts }>\n#{ rows.join( "\n" ) }\n\t</table>\n\n"

528

end

529

end

529

end

530

end

530

531

LISTS_RE = /^([#*]+?#{C} .*?)$(?![^#*])/m

532

LISTS_RE = /^([#*]+?#{C} .*?)$(?![^#*])/m

532

LISTS_CONTENT_RE = /^([#*]+)(#{A}#{C}) (.*)$/m

533

LISTS_CONTENT_RE = /^([#*]+)(#{A}#{C}) (.*)$/m

533

534

# Parses Textile lists and generates HTML

535

# Parses Textile lists and generates HTML

535

def block_textile_lists( text )

536

def block_textile_lists( text )

536

text.gsub!( LISTS_RE ) do |match|

537

text.gsub!( LISTS_RE ) do |match|

537

lines = match.split( /\n/ )

538

lines = match.split( /\n/ )

538

last_line = -1

539

last_line = -1

539

depth = []

540

depth = []

540

lines.each_with_index do |line, line_id|

541

lines.each_with_index do |line, line_id|

541

if line =~ LISTS_CONTENT_RE

542

if line =~ LISTS_CONTENT_RE

542

tl,atts,content = $~[1..3]

543

tl,atts,content = $~[1..3]

543

if depth.last

544

if depth.last

544

if depth.last.length > tl.length

545

if depth.last.length > tl.length

545

(depth.length - 1).downto(0) do |i|

546

(depth.length - 1).downto(0) do |i|

546

break if depth[i].length == tl.length

547

break if depth[i].length == tl.length

547

lines[line_id - 1] << "</li>\n\t</#{ lT( depth[i] ) }l>\n\t"

548

lines[line_id - 1] << "</li>\n\t</#{ lT( depth[i] ) }l>\n\t"

548

depth.pop

549

depth.pop

549

end

550

end

550

end

551

end

551

if depth.last and depth.last.length == tl.length

552

if depth.last and depth.last.length == tl.length

552

lines[line_id - 1] << '</li>'

553

lines[line_id - 1] << '</li>'

553

end

554

end

554

end

555

end

555

unless depth.last == tl

556

unless depth.last == tl

556

depth << tl

557

depth << tl

557

atts = pba( atts )

558

atts = pba( atts )

558

atts = shelve( atts ) if atts

559

atts = shelve( atts ) if atts

559

lines[line_id] = "\t<#{ lT(tl) }l#{ atts }>\n\t<li>#{ content }"

560

lines[line_id] = "\t<#{ lT(tl) }l#{ atts }>\n\t<li>#{ content }"

560

else

561

else

561

lines[line_id] = "\t\t<li>#{ content }"

562

lines[line_id] = "\t\t<li>#{ content }"

562

end

563

end

563

last_line = line_id

564

last_line = line_id

564

565

else

566

else

566

last_line = line_id

567

last_line = line_id

567

end

568

end

568

if line_id - last_line > 1 or line_id == lines.length - 1

569

if line_id - last_line > 1 or line_id == lines.length - 1

569

depth.delete_if do |v|

570

depth.delete_if do |v|

570

lines[last_line] << "</li>\n\t</#{ lT( v ) }l>"

571

lines[last_line] << "</li>\n\t</#{ lT( v ) }l>"

571

end

572

end

572

end

573

end

573

end

574

end

574

lines.join( "\n" )

575

lines.join( "\n" )

575

end

576

end

576

end

577

end

577

578

CODE_RE = /(\W)

579

CODE_RE = /(\W)

579

@

580

@

580

(?:\|(\w+?)\|)?

581

(?:\|(\w+?)\|)?

581

(.+?)

582

(.+?)

582

@

583

@

583

(?=\W)/x

584

(?=\W)/x

584

585

def inline_textile_code( text )

586

def inline_textile_code( text )

586

text.gsub!( CODE_RE ) do |m|

587

text.gsub!( CODE_RE ) do |m|

587

before,lang,code,after = $~[1..4]

588

before,lang,code,after = $~[1..4]

588

lang = " lang=\"#{ lang }\"" if lang

589

lang = " lang=\"#{ lang }\"" if lang

589

rip_offtags( "#{ before }<code#{ lang }>#{ code }</code>#{ after }" )

590

rip_offtags( "#{ before }<code#{ lang }>#{ code }</code>#{ after }" )

590

end

591

end

591

end

592

end

592

593

def lT( text )

594

def lT( text )

594

text =~ /\#$/ ? 'o' : 'u'

595

text =~ /\#$/ ? 'o' : 'u'

595

end

596

end

596

597

def hard_break( text )

598

def hard_break( text )

598

text.gsub!( /(.)\n(?!\Z| *([#*=]+(\s|$)|[{|]))/, "\\1<br />" ) if hard_breaks

599

text.gsub!( /(.)\n(?!\Z| *([#*=]+(\s|$)|[{|]))/, "\\1<br />" ) if hard_breaks

599

end

600

end

600

601

BLOCKS_GROUP_RE = /\n{2,}(?! )/m

602

BLOCKS_GROUP_RE = /\n{2,}(?! )/m

602

603

def blocks( text, deep_code = false )

604

def blocks( text, deep_code = false )

604

text.replace( text.split( BLOCKS_GROUP_RE ).collect do |blk|

605

text.replace( text.split( BLOCKS_GROUP_RE ).collect do |blk|

605

plain = blk !~ /\A[#*> ]/

606

plain = blk !~ /\A[#*> ]/

606

607

# skip blocks that are complex HTML

608

# skip blocks that are complex HTML

608

if blk =~ /^<\/?(\w+).*>/ and not SIMPLE_HTML_TAGS.include? $1

609

if blk =~ /^<\/?(\w+).*>/ and not SIMPLE_HTML_TAGS.include? $1

609

blk

610

blk

610

else

611

else

611

# search for indentation levels

612

# search for indentation levels

612

blk.strip!

613

blk.strip!

613

if blk.empty?

614

if blk.empty?

614

blk

615

blk

615

else

616

else

616

code_blk = nil

617

code_blk = nil

617

blk.gsub!( /((?:\n(?:\n^ +[^\n]*)+)+)/m ) do |iblk|

618

blk.gsub!( /((?:\n(?:\n^ +[^\n]*)+)+)/m ) do |iblk|

618

flush_left iblk

619

flush_left iblk

619

blocks iblk, plain

620

blocks iblk, plain

620

iblk.gsub( /^(\S)/, "\t\\1" )

621

iblk.gsub( /^(\S)/, "\t\\1" )

621

if plain

622

if plain

622

code_blk = iblk; ""

623

code_blk = iblk; ""

623

else

624

else

624

iblk

625

iblk

625

end

626

end

626

end

627

end

627

628

block_applied = 0

629

block_applied = 0

629

@rules.each do |rule_name|

630

@rules.each do |rule_name|

630

block_applied += 1 if ( rule_name.to_s.match /^block_/ and method( rule_name ).call( blk ) )

631

block_applied += 1 if ( rule_name.to_s.match /^block_/ and method( rule_name ).call( blk ) )

631

end

632

end

632

if block_applied.zero?

633

if block_applied.zero?

633

if deep_code

634

if deep_code

634

blk = "\t<pre><code>#{ blk }</code></pre>"

635

blk = "\t<pre><code>#{ blk }</code></pre>"

635

else

636

else

636

blk = "\t<p>#{ blk }</p>"

637

blk = "\t<p>#{ blk }</p>"

637

end

638

end

638

end

639

end

639

# hard_break blk

640

# hard_break blk

640

blk + "\n#{ code_blk }"

641

blk + "\n#{ code_blk }"

641

end

642

end

642

end

643

end

643

644

end.join( "\n\n" ) )

645

end.join( "\n\n" ) )

645

end

646

end

646

647

def textile_bq( tag, atts, cite, content )

648

def textile_bq( tag, atts, cite, content )

648

cite, cite_title = check_refs( cite )

649

cite, cite_title = check_refs( cite )

649

cite = " cite=\"#{ cite }\"" if cite

650

cite = " cite=\"#{ cite }\"" if cite

650

atts = shelve( atts ) if atts

651

atts = shelve( atts ) if atts

651

"\t<blockquote#{ cite }>\n\t\t<p#{ atts }>#{ content }</p>\n\t</blockquote>"

652

"\t<blockquote#{ cite }>\n\t\t<p#{ atts }>#{ content }</p>\n\t</blockquote>"

652

end

653

end

653

654

def textile_p( tag, atts, cite, content )

655

def textile_p( tag, atts, cite, content )

655

atts = shelve( atts ) if atts

656

atts = shelve( atts ) if atts

656

"\t<#{ tag }#{ atts }>#{ content }</#{ tag }>"

657

"\t<#{ tag }#{ atts }>#{ content }</#{ tag }>"

657

end

658

end

658

659

alias textile_h1 textile_p

660

alias textile_h1 textile_p

660

alias textile_h2 textile_p

661

alias textile_h2 textile_p

661

alias textile_h3 textile_p

662

alias textile_h3 textile_p

662

alias textile_h4 textile_p

663

alias textile_h4 textile_p

663

alias textile_h5 textile_p

664

alias textile_h5 textile_p

664

alias textile_h6 textile_p

665

alias textile_h6 textile_p

665

666

def textile_fn_( tag, num, atts, cite, content )

667

def textile_fn_( tag, num, atts, cite, content )

667

atts << " id=\"fn#{ num }\""

668

atts << " id=\"fn#{ num }\""

668

content = "<sup>#{ num }</sup> #{ content }"

669

content = "<sup>#{ num }</sup> #{ content }"

669

atts = shelve( atts ) if atts

670

atts = shelve( atts ) if atts

670

"\t<p#{ atts }>#{ content }</p>"

671

"\t<p#{ atts }>#{ content }</p>"

671

end

672

end

672

673

BLOCK_RE = /^(([a-z]+)(\d*))(#{A}#{C})\.(?::(\S+))? (.*)$/m

674

BLOCK_RE = /^(([a-z]+)(\d*))(#{A}#{C})\.(?::(\S+))? (.*)$/m

674

675

def block_textile_prefix( text )

676

def block_textile_prefix( text )

676

if text =~ BLOCK_RE

677

if text =~ BLOCK_RE

677

tag,tagpre,num,atts,cite,content = $~[1..6]

678

tag,tagpre,num,atts,cite,content = $~[1..6]

678

atts = pba( atts )

679

atts = pba( atts )

679

680

# pass to prefix handler

681

# pass to prefix handler

681

if respond_to? "textile_#{ tag }", true

682

if respond_to? "textile_#{ tag }", true

682

text.gsub!( $&, method( "textile_#{ tag }" ).call( tag, atts, cite, content ) )

683

text.gsub!( $&, method( "textile_#{ tag }" ).call( tag, atts, cite, content ) )

683

elsif respond_to? "textile_#{ tagpre }_", true

684

elsif respond_to? "textile_#{ tagpre }_", true

684

text.gsub!( $&, method( "textile_#{ tagpre }_" ).call( tagpre, num, atts, cite, content ) )

685

text.gsub!( $&, method( "textile_#{ tagpre }_" ).call( tagpre, num, atts, cite, content ) )

685

end

686

end

686

end

687

end

687

end

688

end

688

689

SETEXT_RE = /\A(.+?)\n([=-])[=-]* *$/m

690

SETEXT_RE = /\A(.+?)\n([=-])[=-]* *$/m

690

def block_markdown_setext( text )

691

def block_markdown_setext( text )

691

if text =~ SETEXT_RE

692

if text =~ SETEXT_RE

692

tag = if $2 == "="; "h1"; else; "h2"; end

693

tag = if $2 == "="; "h1"; else; "h2"; end

693

blk, cont = "<#{ tag }>#{ $1 }</#{ tag }>", $'

694

blk, cont = "<#{ tag }>#{ $1 }</#{ tag }>", $'

694

blocks cont

695

blocks cont

695

text.replace( blk + cont )

696

text.replace( blk + cont )

696

end

697

end

697

end

698

end

698

699

ATX_RE = /\A(\#{1,6}) # $1 = string of #'s

700

ATX_RE = /\A(\#{1,6}) # $1 = string of #'s

700

[ ]*

701

[ ]*

701

(.+?) # $2 = Header text

702

(.+?) # $2 = Header text

702

[ ]*

703

[ ]*

703

\#* # optional closing #'s (not counted)

704

\#* # optional closing #'s (not counted)

704

$/x

705

$/x

705

def block_markdown_atx( text )

706

def block_markdown_atx( text )

706

if text =~ ATX_RE

707

if text =~ ATX_RE

707

tag = "h#{ $1.length }"

708

tag = "h#{ $1.length }"

708

blk, cont = "<#{ tag }>#{ $2 }</#{ tag }>\n\n", $'

709

blk, cont = "<#{ tag }>#{ $2 }</#{ tag }>\n\n", $'

709

blocks cont

710

blocks cont

710

text.replace( blk + cont )

711

text.replace( blk + cont )

711

end

712

end

712

end

713

end

713

714

MARKDOWN_BQ_RE = /\A(^ *> ?.+$(.+\n)*\n*)+/m

715

MARKDOWN_BQ_RE = /\A(^ *> ?.+$(.+\n)*\n*)+/m

715

716

def block_markdown_bq( text )

717

def block_markdown_bq( text )

717

text.gsub!( MARKDOWN_BQ_RE ) do |blk|

718

text.gsub!( MARKDOWN_BQ_RE ) do |blk|

718

blk.gsub!( /^ *> ?/, '' )

719

blk.gsub!( /^ *> ?/, '' )

719

flush_left blk

720

flush_left blk

720

blocks blk

721

blocks blk

721

blk.gsub!( /^(\S)/, "\t\\1" )

722

blk.gsub!( /^(\S)/, "\t\\1" )

722

"<blockquote>\n#{ blk }\n</blockquote>\n\n"

723

"<blockquote>\n#{ blk }\n</blockquote>\n\n"

723

end

724

end

724

end

725

end

725

726

MARKDOWN_RULE_RE = /^(#{

727

MARKDOWN_RULE_RE = /^(#{

727

['*', '-', '_'].collect { |ch| '( ?' + Regexp::quote( ch ) + ' ?){3,}' }.join( '|' )

728

['*', '-', '_'].collect { |ch| '( ?' + Regexp::quote( ch ) + ' ?){3,}' }.join( '|' )

728

})$/

729

})$/

729

730

def block_markdown_rule( text )

731

def block_markdown_rule( text )

731

text.gsub!( MARKDOWN_RULE_RE ) do |blk|

732

text.gsub!( MARKDOWN_RULE_RE ) do |blk|

732

"<hr />"

733

"<hr />"

733

end

734

end

734

end

735

end

735

736

# XXX TODO XXX

737

# XXX TODO XXX

737

def block_markdown_lists( text )

738

def block_markdown_lists( text )

738

end

739

end

739

740

def inline_textile_span( text )

741

def inline_textile_span( text )

741

QTAGS.each do |qtag_rc, ht, qtag_re, rtype|

742

QTAGS.each do |qtag_rc, ht, qtag_re, rtype|

742

text.gsub!( qtag_re ) do |m|

743

text.gsub!( qtag_re ) do |m|

743

744

case rtype

745

case rtype

745

when :limit

746

when :limit

746

sta,qtag,atts,cite,content = $~[1..5]

747

sta,qtag,atts,cite,content = $~[1..5]

747

else

748

else

748

qtag,atts,cite,content = $~[1..4]

749

qtag,atts,cite,content = $~[1..4]

749

sta = ''

750

sta = ''

750

end

751

end

751

atts = pba( atts )

752

atts = pba( atts )

752

atts << " cite=\"#{ cite }\"" if cite

753

atts << " cite=\"#{ cite }\"" if cite

753

atts = shelve( atts ) if atts

754

atts = shelve( atts ) if atts

754

755

"#{ sta }<#{ ht }#{ atts }>#{ content }</#{ ht }>"

756

"#{ sta }<#{ ht }#{ atts }>#{ content }</#{ ht }>"

756

757

end

758

end

758

end

759

end

759

end

760

end

760

761

LINK_RE = /

762

LINK_RE = /

762

([\s\[{(]|[#{PUNCT}])? # $pre

763

([\s\[{(]|[#{PUNCT}])? # $pre

763

" # start

764

" # start

764

(#{C}) # $atts

765

(#{C}) # $atts

765

([^"]+?) # $text

766

([^"]+?) # $text

766

\s?

767

\s?

767

(?:$([^)]+?)$(?="))? # $title

768

(?:$([^)]+?)$(?="))? # $title

768

":

769

":

769

(\S+?) # $url

770

(\S+?) # $url

770

(\/)? # $slash

771

(\/)? # $slash

771

([^\w\/;]*?) # $post

772

([^\w\/;]*?) # $post

772

(?=<|\s|$)

773

(?=<|\s|$)

773

/x

774

/x

774

775

def inline_textile_link( text )

776

def inline_textile_link( text )

776

text.gsub!( LINK_RE ) do |m|

777

text.gsub!( LINK_RE ) do |m|

777

pre,atts,text,title,url,slash,post = $~[1..7]

778

pre,atts,text,title,url,slash,post = $~[1..7]

778

779

url, url_title = check_refs( url )

780

url, url_title = check_refs( url )

780

title ||= url_title

781

title ||= url_title

781

782

atts = pba( atts )

783

atts = pba( atts )

783

atts = " href=\"#{ url }#{ slash }\"#{ atts }"

784

atts = " href=\"#{ url }#{ slash }\"#{ atts }"

784

atts << " title=\"#{ title }\"" if title

785

atts << " title=\"#{ title }\"" if title

785

atts = shelve( atts ) if atts

786

atts = shelve( atts ) if atts

786

787

external = (url =~ /^http:\/\//) ? ' class="external"' : ''

788

external = (url =~ /^http:\/\//) ? ' class="external"' : ''

788

789

"#{ pre }<a#{ atts }#{ external }>#{ text }</a>#{ post }"

790

"#{ pre }<a#{ atts }#{ external }>#{ text }</a>#{ post }"

790

end

791

end

791

end

792

end

792

793

MARKDOWN_REFLINK_RE = /

794

MARKDOWN_REFLINK_RE = /

794

\[([^\[\]]+)\] # $text

795

\[([^\[\]]+)\] # $text

795

[ ]? # opt. space

796

[ ]? # opt. space

796

(?:\n[ ]*)? # one optional newline followed by spaces

797

(?:\n[ ]*)? # one optional newline followed by spaces

797

\[(.*?)\] # $id

798

\[(.*?)\] # $id

798

/x

799

/x

799

800

def inline_markdown_reflink( text )

801

def inline_markdown_reflink( text )

801

text.gsub!( MARKDOWN_REFLINK_RE ) do |m|

802

text.gsub!( MARKDOWN_REFLINK_RE ) do |m|

802

text, id = $~[1..2]

803

text, id = $~[1..2]

803

804

if id.empty?

805

if id.empty?

805

url, title = check_refs( text )

806

url, title = check_refs( text )

806

else

807

else

807

url, title = check_refs( id )

808

url, title = check_refs( id )

808

end

809

end

809

810

atts = " href=\"#{ url }\""

811

atts = " href=\"#{ url }\""

811

atts << " title=\"#{ title }\"" if title

812

atts << " title=\"#{ title }\"" if title

812

atts = shelve( atts )

813

atts = shelve( atts )

813

814

"<a#{ atts }>#{ text }</a>"

815

"<a#{ atts }>#{ text }</a>"

815

end

816

end

816

end

817

end

817

818

MARKDOWN_LINK_RE = /

819

MARKDOWN_LINK_RE = /

819

\[([^\[\]]+)\] # $text

820

\[([^\[\]]+)\] # $text

820

\( # open paren

821

\( # open paren

821

[ \t]* # opt space

822

[ \t]* # opt space

822

<?(.+?)>? # $href

823

<?(.+?)>? # $href

823

[ \t]* # opt space

824

[ \t]* # opt space

824

(?: # whole title

825

(?: # whole title

825

(['"]) # $quote

826

(['"]) # $quote

826

(.*?) # $title

827

(.*?) # $title

827

\3 # matching quote

828

\3 # matching quote

828

)? # title is optional

829

)? # title is optional

829

\)

830

\)

830

/x

831

/x

831

832

def inline_markdown_link( text )

833

def inline_markdown_link( text )

833

text.gsub!( MARKDOWN_LINK_RE ) do |m|

834

text.gsub!( MARKDOWN_LINK_RE ) do |m|

834

text, url, quote, title = $~[1..4]

835

text, url, quote, title = $~[1..4]

835

836

atts = " href=\"#{ url }\""

837

atts = " href=\"#{ url }\""

837

atts << " title=\"#{ title }\"" if title

838

atts << " title=\"#{ title }\"" if title

838

atts = shelve( atts )

839

atts = shelve( atts )

839

840

"<a#{ atts }>#{ text }</a>"

841

"<a#{ atts }>#{ text }</a>"

841

end

842

end

842

end

843

end

843

844

TEXTILE_REFS_RE = /(^ *)\[([^\[\n]+?)\](#{HYPERLINK})(?=\s|$)/

845

TEXTILE_REFS_RE = /(^ *)\[([^\[\n]+?)\](#{HYPERLINK})(?=\s|$)/

845

MARKDOWN_REFS_RE = /(^ *)\[([^\n]+?)\]:\s+<?(#{HYPERLINK})>?(?:\s+"((?:[^"]|\\")+)")?(?=\s|$)/m

846

MARKDOWN_REFS_RE = /(^ *)\[([^\n]+?)\]:\s+<?(#{HYPERLINK})>?(?:\s+"((?:[^"]|\\")+)")?(?=\s|$)/m

846

847

def refs( text )

848

def refs( text )

848

@rules.each do |rule_name|

849

@rules.each do |rule_name|

849

method( rule_name ).call( text ) if rule_name.to_s.match /^refs_/

850

method( rule_name ).call( text ) if rule_name.to_s.match /^refs_/

850

end

851

end

851

end

852

end

852

853

def refs_textile( text )

854

def refs_textile( text )

854

text.gsub!( TEXTILE_REFS_RE ) do |m|

855

text.gsub!( TEXTILE_REFS_RE ) do |m|

855

flag, url = $~[2..3]

856

flag, url = $~[2..3]

856

@urlrefs[flag.downcase] = [url, nil]

857

@urlrefs[flag.downcase] = [url, nil]

857

nil

858

nil

858

end

859

end

859

end

860

end

860

861

def refs_markdown( text )

862

def refs_markdown( text )

862

text.gsub!( MARKDOWN_REFS_RE ) do |m|

863

text.gsub!( MARKDOWN_REFS_RE ) do |m|

863

flag, url = $~[2..3]

864

flag, url = $~[2..3]

864

title = $~[6]

865

title = $~[6]

865

@urlrefs[flag.downcase] = [url, title]

866

@urlrefs[flag.downcase] = [url, title]

866

nil

867

nil

867

end

868

end

868

end

869

end

869

870

def check_refs( text )

871

def check_refs( text )

871

ret = @urlrefs[text.downcase] if text

872

ret = @urlrefs[text.downcase] if text

872

ret || [text, nil]

873

ret || [text, nil]

873

end

874

end

874

875

IMAGE_RE = /

876

IMAGE_RE = /

876

(<p>|.|^) # start of line?

877

(<p>|.|^) # start of line?

877

\! # opening

878

\! # opening

878

(\<|\=|\>)? # optional alignment atts

879

(\<|\=|\>)? # optional alignment atts

879

(#{C}) # optional style,class atts

880

(#{C}) # optional style,class atts

880

(?:\. )? # optional dot-space

881

(?:\. )? # optional dot-space

881

([^\s(!]+?) # presume this is the src

882

([^\s(!]+?) # presume this is the src

882

\s? # optional space

883

\s? # optional space

883

(?:$((?:[^\($]|$[^$]+\))+?)\))? # optional title

884

(?:$((?:[^\($]|$[^$]+\))+?)\))? # optional title

884

\! # closing

885

\! # closing

885

(?::#{ HYPERLINK })? # optional href

886

(?::#{ HYPERLINK })? # optional href

886

/x

887

/x

887

888

def inline_textile_image( text )

889

def inline_textile_image( text )

889

text.gsub!( IMAGE_RE ) do |m|

890

text.gsub!( IMAGE_RE ) do |m|

890

stln,algn,atts,url,title,href,href_a1,href_a2 = $~[1..8]

891

stln,algn,atts,url,title,href,href_a1,href_a2 = $~[1..8]

891

atts = pba( atts )

892

atts = pba( atts )

892

atts = " src=\"#{ url }\"#{ atts }"

893

atts = " src=\"#{ url }\"#{ atts }"

893

atts << " title=\"#{ title }\"" if title

894

atts << " title=\"#{ title }\"" if title

894

atts << " alt=\"#{ title }\""

895

atts << " alt=\"#{ title }\""

895

# size = @getimagesize($url);

896

# size = @getimagesize($url);

896

# if($size) $atts.= " $size[3]";

897

# if($size) $atts.= " $size[3]";

897

898

href, alt_title = check_refs( href ) if href

899

href, alt_title = check_refs( href ) if href

899

url, url_title = check_refs( url )

900

url, url_title = check_refs( url )

900

901

out = ''

902

out = ''

902

out << "<a#{ shelve( " href=\"#{ href }\"" ) }>" if href

903

out << "<a#{ shelve( " href=\"#{ href }\"" ) }>" if href

903

out << "<img#{ shelve( atts ) } />"

904

out << "<img#{ shelve( atts ) } />"

904

out << "</a>#{ href_a1 }#{ href_a2 }" if href

905

out << "</a>#{ href_a1 }#{ href_a2 }" if href

905

906

if algn

907

if algn

907

algn = h_align( algn )

908

algn = h_align( algn )

908

if stln == "<p>"

909

if stln == "<p>"

909

out = "<p style=\"float:#{ algn }\">#{ out }"

910

out = "<p style=\"float:#{ algn }\">#{ out }"

910

else

911

else

911

out = "#{ stln }<div style=\"float:#{ algn }\">#{ out }</div>"

912

out = "#{ stln }<div style=\"float:#{ algn }\">#{ out }</div>"

912

end

913

end

913

else

914

else

914

out = stln + out

915

out = stln + out

915

end

916

end

916

917

out

918

out

918

end

919

end

919

end

920

end

920

921

def shelve( val )

922

def shelve( val )

922

@shelf << val

923

@shelf << val

923

" :redsh##{ @shelf.length }:"

924

" :redsh##{ @shelf.length }:"

924

end

925

end

925

926

def retrieve( text )

927

def retrieve( text )

927

@shelf.each_with_index do |r, i|

928

@shelf.each_with_index do |r, i|

928

text.gsub!( " :redsh##{ i + 1 }:", r )

929

text.gsub!( " :redsh##{ i + 1 }:", r )

929

end

930

end

930

end

931

end

931

932

def incoming_entities( text )

933

def incoming_entities( text )

933

## turn any incoming ampersands into a dummy character for now.

934

## turn any incoming ampersands into a dummy character for now.

934

## This uses a negative lookahead for alphanumerics followed by a semicolon,

935

## This uses a negative lookahead for alphanumerics followed by a semicolon,

935

## implying an incoming html entity, to be skipped

936

## implying an incoming html entity, to be skipped

936

937

text.gsub!( /&(?![#a-z0-9]+;)/i, "x%x%" )

938

text.gsub!( /&(?![#a-z0-9]+;)/i, "x%x%" )

938

end

939

end

939

940

def no_textile( text )

941

def no_textile( text )

941

text.gsub!( /(^|\s)==([^=]+.*?)==(\s|$)?/,

942

text.gsub!( /(^|\s)==([^=]+.*?)==(\s|$)?/,

942

'\1<notextile>\2</notextile>\3' )

943

'\1<notextile>\2</notextile>\3' )

943

text.gsub!( /^ *==([^=]+.*?)==/m,

944

text.gsub!( /^ *==([^=]+.*?)==/m,

944

'\1<notextile>\2</notextile>\3' )

945

'\1<notextile>\2</notextile>\3' )

945

end

946

end

946

947

def clean_white_space( text )

948

def clean_white_space( text )

948

# normalize line breaks

949

# normalize line breaks

949

text.gsub!( /\r\n/, "\n" )

950

text.gsub!( /\r\n/, "\n" )

950

text.gsub!( /\r/, "\n" )

951

text.gsub!( /\r/, "\n" )

951

text.gsub!( /\t/, ' ' )

952

text.gsub!( /\t/, ' ' )

952

text.gsub!( /^ +$/, '' )

953

text.gsub!( /^ +$/, '' )

953

text.gsub!( /\n{3,}/, "\n\n" )

954

text.gsub!( /\n{3,}/, "\n\n" )

954

text.gsub!( /"$/, "\" " )

955

text.gsub!( /"$/, "\" " )

955

956

# if entire document is indented, flush

957

# if entire document is indented, flush

957

# to the left side

958

# to the left side

958

flush_left text

959

flush_left text

959

end

960

end

960

961

def flush_left( text )

962

def flush_left( text )

962

indt = 0

963

indt = 0

963

if text =~ /^ /

964

if text =~ /^ /

964

while text !~ /^ {#{indt}}\S/

965

while text !~ /^ {#{indt}}\S/

965

indt += 1

966

indt += 1

966

end unless text.empty?

967

end unless text.empty?

967

if indt.nonzero?

968

if indt.nonzero?

968

text.gsub!( /^ {#{indt}}/, '' )

969

text.gsub!( /^ {#{indt}}/, '' )

969

end

970

end

970

end

971

end

971

end

972

end

972

973

def footnote_ref( text )

974

def footnote_ref( text )

974

text.gsub!( /\b\[([0-9]+?)\](\s)?/,

975

text.gsub!( /\b\[([0-9]+?)\](\s)?/,

975

'<sup><a href="#fn\1">\1</a></sup>\2' )

976

'<sup><a href="#fn\1">\1</a></sup>\2' )

976

end

977

end

977

978

OFFTAGS = /(code|pre|kbd|notextile)/

979

OFFTAGS = /(code|pre|kbd|notextile)/

979

OFFTAG_MATCH = /(?:(<\/#{ OFFTAGS }>)|(<#{ OFFTAGS }[^>]*>))(.*?)(?=<\/?#{ OFFTAGS }|\Z)/mi

980

OFFTAG_MATCH = /(?:(<\/#{ OFFTAGS }>)|(<#{ OFFTAGS }[^>]*>))(.*?)(?=<\/?#{ OFFTAGS }|\Z)/mi

980

OFFTAG_OPEN = /<#{ OFFTAGS }/

981

OFFTAG_OPEN = /<#{ OFFTAGS }/

981

OFFTAG_CLOSE = /<\/?#{ OFFTAGS }/

982

OFFTAG_CLOSE = /<\/?#{ OFFTAGS }/

982

HASTAG_MATCH = /(<\/?\w[^\n]*?>)/m

983

HASTAG_MATCH = /(<\/?\w[^\n]*?>)/m

983

ALLTAG_MATCH = /(<\/?\w[^\n]*?>)|.*?(?=<\/?\w[^\n]*?>|$)/m

984

ALLTAG_MATCH = /(<\/?\w[^\n]*?>)|.*?(?=<\/?\w[^\n]*?>|$)/m

984

985

def glyphs_textile( text, level = 0 )

986

def glyphs_textile( text, level = 0 )

986

if text !~ HASTAG_MATCH

987

if text !~ HASTAG_MATCH

987

pgl text

988

pgl text

988

footnote_ref text

989

footnote_ref text

989

else

990

else

990

codepre = 0

991

codepre = 0

991

text.gsub!( ALLTAG_MATCH ) do |line|

992

text.gsub!( ALLTAG_MATCH ) do |line|

992

## matches are off if we're between <code>, <pre> etc.

993

## matches are off if we're between <code>, <pre> etc.

993

if $1

994

if $1

994

if line =~ OFFTAG_OPEN

995

if line =~ OFFTAG_OPEN

995

codepre += 1

996

codepre += 1

996

elsif line =~ OFFTAG_CLOSE

997

elsif line =~ OFFTAG_CLOSE

997

codepre -= 1

998

codepre -= 1

998

codepre = 0 if codepre < 0

999

codepre = 0 if codepre < 0

999

end

1000

end

1000

elsif codepre.zero?

1001

elsif codepre.zero?

1001

glyphs_textile( line, level + 1 )

1002

glyphs_textile( line, level + 1 )

1002

else

1003

else

1003

htmlesc( line, :NoQuotes )

1004

htmlesc( line, :NoQuotes )

1004

end

1005

end

1005

# p [level, codepre, line]

1006

# p [level, codepre, line]

1006

1007

line

1008

line

1008

end

1009

end

1009

end

1010

end

1010

end

1011

end

1011

1012

def rip_offtags( text )

1013

def rip_offtags( text )

1013

if text =~ /<.*>/

1014

if text =~ /<.*>/

1014

## strip and encode <pre> content

1015

## strip and encode <pre> content

1015

codepre, used_offtags = 0, {}

1016

codepre, used_offtags = 0, {}

1016

text.gsub!( OFFTAG_MATCH ) do |line|

1017

text.gsub!( OFFTAG_MATCH ) do |line|

1017

if $3

1018

if $3

1018

offtag, aftertag = $4, $5

1019

offtag, aftertag = $4, $5

1019

codepre += 1

1020

codepre += 1

1020

used_offtags[offtag] = true

1021

used_offtags[offtag] = true

1021

if codepre - used_offtags.length > 0

1022

if codepre - used_offtags.length > 0

1022

htmlesc( line, :NoQuotes ) unless used_offtags['notextile']

1023

htmlesc( line, :NoQuotes ) unless used_offtags['notextile']

1023

@pre_list.last << line

1024

@pre_list.last << line

1024

line = ""

1025

line = ""

1025

else

1026

else

1026

htmlesc( aftertag, :NoQuotes ) if aftertag and not used_offtags['notextile']

1027

htmlesc( aftertag, :NoQuotes ) if aftertag and not used_offtags['notextile']

1027

line = "<redpre##{ @pre_list.length }>"

1028

line = "<redpre##{ @pre_list.length }>"

1028

@pre_list << "#{ $3 }#{ aftertag }"

1029

@pre_list << "#{ $3 }#{ aftertag }"

1029

end

1030

end

1030

elsif $1 and codepre > 0

1031

elsif $1 and codepre > 0

1031

if codepre - used_offtags.length > 0

1032

if codepre - used_offtags.length > 0

1032

htmlesc( line, :NoQuotes ) unless used_offtags['notextile']

1033

htmlesc( line, :NoQuotes ) unless used_offtags['notextile']

1033

@pre_list.last << line

1034

@pre_list.last << line

1034

line = ""

1035

line = ""

1035

end

1036

end

1036

codepre -= 1 unless codepre.zero?

1037

codepre -= 1 unless codepre.zero?

1037

used_offtags = {} if codepre.zero?

1038

used_offtags = {} if codepre.zero?

1038

end

1039

end

1039

line

1040

line

1040

end

1041

end

1041

end

1042

end

1042

text

1043

text

1043

end

1044

end

1044

1045

def smooth_offtags( text )

1046

def smooth_offtags( text )

1046

unless @pre_list.empty?

1047

unless @pre_list.empty?

1047

## replace <pre> content

1048

## replace <pre> content

1048

text.gsub!( /<redpre#(\d+)>/ ) { @pre_list[$1.to_i] }

1049

text.gsub!( /<redpre#(\d+)>/ ) { @pre_list[$1.to_i] }

1049

end

1050

end

1050

end

1051

end

1051

1052

def inline( text )

1053

def inline( text )

1053

[/^inline_/, /^glyphs_/].each do |meth_re|

1054

[/^inline_/, /^glyphs_/].each do |meth_re|

1054

@rules.each do |rule_name|

1055

@rules.each do |rule_name|

1055

method( rule_name ).call( text ) if rule_name.to_s.match( meth_re )

1056

method( rule_name ).call( text ) if rule_name.to_s.match( meth_re )

1056

end

1057

end

1057

end

1058

end

1058

end

1059

end

1059

1060

def h_align( text )

1061

def h_align( text )

1061

H_ALGN_VALS[text]

1062

H_ALGN_VALS[text]

1062

end

1063

end

1063

1064

def v_align( text )

1065

def v_align( text )

1065

V_ALGN_VALS[text]

1066

V_ALGN_VALS[text]

1066

end

1067

end

1067

1068

def textile_popup_help( name, windowW, windowH )

1069

def textile_popup_help( name, windowW, windowH )

1069

' <a target="_blank" href="http://hobix.com/textile/#' + helpvar + '" onclick="window.open(this.href, \'popupwindow\', \'width=' + windowW + ',height=' + windowH + ',scrollbars,resizable\'); return false;">' + name + '</a><br />'

1070

' <a target="_blank" href="http://hobix.com/textile/#' + helpvar + '" onclick="window.open(this.href, \'popupwindow\', \'width=' + windowW + ',height=' + windowH + ',scrollbars,resizable\'); return false;">' + name + '</a><br />'

1070

end

1071

end

1071

1072

# HTML cleansing stuff

1073

# HTML cleansing stuff

1073

BASIC_TAGS = {

1074

BASIC_TAGS = {

1074

'a' => ['href', 'title'],

1075

'a' => ['href', 'title'],

1075

'img' => ['src', 'alt', 'title'],

1076

'img' => ['src', 'alt', 'title'],

1076

'br' => [],

1077

'br' => [],

1077

'i' => nil,

1078

'i' => nil,

1078

'u' => nil,

1079

'u' => nil,

1079

'b' => nil,

1080

'b' => nil,

1080

'pre' => nil,

1081

'pre' => nil,

1081

'kbd' => nil,

1082

'kbd' => nil,

1082

'code' => ['lang'],

1083

'code' => ['lang'],

1083

'cite' => nil,

1084

'cite' => nil,

1084

'strong' => nil,

1085

'strong' => nil,

1085

'em' => nil,

1086

'em' => nil,

1086

'ins' => nil,

1087

'ins' => nil,

1087

'sup' => nil,

1088

'sup' => nil,

1088

'sub' => nil,

1089

'sub' => nil,

1089

'del' => nil,

1090

'del' => nil,

1090

'table' => nil,

1091

'table' => nil,

1091

'tr' => nil,

1092

'tr' => nil,

1092

'td' => ['colspan', 'rowspan'],

1093

'td' => ['colspan', 'rowspan'],

1093

'th' => nil,

1094

'th' => nil,

1094

'ol' => nil,

1095

'ol' => nil,

1095

'ul' => nil,

1096

'ul' => nil,

1096

'li' => nil,

1097

'li' => nil,

1097

'p' => nil,

1098

'p' => nil,

1098

'h1' => nil,

1099

'h1' => nil,

1099

'h2' => nil,

1100

'h2' => nil,

1100

'h3' => nil,

1101

'h3' => nil,

1101

'h4' => nil,

1102

'h4' => nil,

1102

'h5' => nil,

1103

'h5' => nil,

1103

'h6' => nil,

1104

'h6' => nil,

1104

'blockquote' => ['cite']

1105

'blockquote' => ['cite']

1105

}

1106

}

1106

1107

def clean_html( text, tags = BASIC_TAGS )

1108

def clean_html( text, tags = BASIC_TAGS )

1108

text.gsub!( /<!\[CDATA\[/, '' )

1109

text.gsub!( /<!\[CDATA\[/, '' )

1109

text.gsub!( /<(\/*)(\w+)([^>]*)>/ ) do

1110

text.gsub!( /<(\/*)(\w+)([^>]*)>/ ) do

1110

raw = $~

1111

raw = $~

1111

tag = raw[2].downcase

1112

tag = raw[2].downcase

1112

if tags.has_key? tag

1113

if tags.has_key? tag

1113

pcs = [tag]

1114

pcs = [tag]

1114

tags[tag].each do |prop|

1115

tags[tag].each do |prop|

1115

['"', "'", ''].each do |q|

1116

['"', "'", ''].each do |q|

1116

q2 = ( q != '' ? q : '\s' )

1117

q2 = ( q != '' ? q : '\s' )

1117

if raw[3] =~ /#{prop}\s*=\s*#{q}([^#{q2}]+)#{q}/i

1118

if raw[3] =~ /#{prop}\s*=\s*#{q}([^#{q2}]+)#{q}/i

1118

attrv = $1

1119

attrv = $1

1119

next if prop == 'src' and attrv =~ %r{^(?!http)\w+:}

1120

next if prop == 'src' and attrv =~ %r{^(?!http)\w+:}

1120

pcs << "#{prop}=\"#{$1.gsub('"', '\\"')}\""

1121

pcs << "#{prop}=\"#{$1.gsub('"', '\\"')}\""

1121

break

1122

break

1122

end

1123

end

1123

end

1124

end

1124

end if tags[tag]

1125

end if tags[tag]

1125

"<#{raw[1]}#{pcs.join " "}>"

1126

"<#{raw[1]}#{pcs.join " "}>"

1126

else

1127

else

1127

" "

1128

" "

1128

end

1129

end

1129

end

1130

end

1130

end

1131

end

1132

1133

ALLOWED_TAGS = %w(redpre pre)

1134

1135

def escape_html_tags(text)

1136

text.gsub!(%r{<((\/?)(\w+))}) {|m| ALLOWED_TAGS.include?($3) ? "<#{$1}" : "<#{$1}" }

1137

end

1131

end

1138

end

1132

1139

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             #                                vim:ts=4:sw=4:
             # = RedCloth - Textile and Markdown Hybrid for Ruby
             #
             # Homepage::  http://whytheluckystiff.net/ruby/redcloth/
             # Author::    why the lucky stiff (http://whytheluckystiff.net/)
             # Copyright:: (cc) 2004 why the lucky stiff (and his puppet organizations.)
             # License::   BSD
             #
             # (see http://hobix.com/textile/ for a Textile Reference.)
             #
             # Based on (and also inspired by) both:
             #
             # PyTextile: http://diveintomark.org/projects/textile/textile.py.txt
             # Textism for PHP: http://www.textism.com/tools/textile/
             #
             #
             # = RedCloth
             #
             # RedCloth is a Ruby library for converting Textile and/or Markdown
             # into HTML.  You can use either format, intermingled or separately.
             # You can also extend RedCloth to honor your own custom text stylings.
             #
             # RedCloth users are encouraged to use Textile if they are generating
             # HTML and to use Markdown if others will be viewing the plain text.
             #
             # == What is Textile?
             #
             # Textile is a simple formatting style for text
             # documents, loosely based on some HTML conventions.
             #
             # == Sample Textile Text
             #
             #  h2. This is a title
             #
             #  h3. This is a subhead
             #
             #  This is a bit of paragraph.
             #
             #  bq. This is a blockquote.
             #
             # = Writing Textile
             #
             # A Textile document consists of paragraphs.  Paragraphs
             # can be specially formatted by adding a small instruction
             # to the beginning of the paragraph.
             #
             #  h[n].   Header of size [n].
             #  bq.     Blockquote.
             #  #       Numeric list.
             #  *       Bulleted list.
             #
             # == Quick Phrase Modifiers
             #
             # Quick phrase modifiers are also included, to allow formatting
             # of small portions of text within a paragraph.
             #
             #  \_emphasis\_
             #  \_\_italicized\_\_
             #  \*strong\*
             #  \*\*bold\*\*
             #  ??citation??
             #  -deleted text-
             #  +inserted text+
             #  ^superscript^
             #  ~subscript~
             #  @code@
             #  %(classname)span%
             #
             #  ==notextile== (leave text alone)
             #
             # == Links
             #
             # To make a hypertext link, put the link text in "quotation
             # marks" followed immediately by a colon and the URL of the link.
             #
             # Optional: text in (parentheses) following the link text,
             # but before the closing quotation mark, will become a Title
             # attribute for the link, visible as a tool tip when a cursor is above it.
             #
             # Example:
             #
             #  "This is a link (This is a title) ":http://www.textism.com
             #
             # Will become:
             #
             #  <a href="http://www.textism.com" title="This is a title">This is a link</a>
             #
             # == Images
             #
             # To insert an image, put the URL for the image inside exclamation marks.
             #
             # Optional: text that immediately follows the URL in (parentheses) will
             # be used as the Alt text for the image. Images on the web should always
             # have descriptive Alt text for the benefit of readers using non-graphical
             # browsers.
             #
             # Optional: place a colon followed by a URL immediately after the
             # closing ! to make the image into a link.
             #
             # Example:
             #
             #  !http://www.textism.com/common/textist.gif(Textist)!
             #
             # Will become:
             #
             #  <img src="http://www.textism.com/common/textist.gif" alt="Textist" />
             #
             # With a link:
             #
             #  !/common/textist.gif(Textist)!:http://textism.com
             #
             # Will become:
             #
             #  <a href="http://textism.com"><img src="/common/textist.gif" alt="Textist" /></a>
             #
             # == Defining Acronyms
             #
             # HTML allows authors to define acronyms via the tag. The definition appears as a
             # tool tip when a cursor hovers over the acronym. A crucial aid to clear writing,
             # this should be used at least once for each acronym in documents where they appear.
             #
             # To quickly define an acronym in Textile, place the full text in (parentheses)
             # immediately following the acronym.
             #
             # Example:
             #
             #  ACLU(American Civil Liberties Union)
             #
             # Will become:
             #
             #  <acronym title="American Civil Liberties Union">ACLU</acronym>
             #
             # == Adding Tables
             #
             # In Textile, simple tables can be added by seperating each column by
             # a pipe.
             #
             #     |a|simple|table|row|
             #     |And|Another|table|row|
             #
             # Attributes are defined by style definitions in parentheses.
             #
             #     table(border:1px solid black).
             #     (background:#ddd;color:red). |{}| | | |
             #
             # == Using RedCloth
             #
             # RedCloth is simply an extension of the String class, which can handle
             # Textile formatting.  Use it like a String and output HTML with its
             # RedCloth#to_html method.
             #
             #  doc = RedCloth.new "
             #
             #  h2. Test document
             #
             #  Just a simple test."
             #
             #  puts doc.to_html
             #
             # By default, RedCloth uses both Textile and Markdown formatting, with
             # Textile formatting taking precedence.  If you want to turn off Markdown
             # formatting, to boost speed and limit the processor:
             #
             #  class RedCloth::Textile.new( str )
             class RedCloth < String
                 VERSION = '3.0.4'
                 DEFAULT_RULES = [:textile, :markdown]
                 #
                 # Two accessor for setting security restrictions.
                 #
                 # This is a nice thing if you're using RedCloth for
                 # formatting in public places (e.g. Wikis) where you
                 # don't want users to abuse HTML for bad things.
                 #
                 # If +:filter_html+ is set, HTML which wasn't
                 # created by the Textile processor will be escaped.
                 #
                 # If +:filter_styles+ is set, it will also disable
                 # the style markup specifier. ('{color: red}')
                 #
                 attr_accessor :filter_html, :filter_styles
                 #
                 # Accessor for toggling hard breaks.
                 #
                 # If +:hard_breaks+ is set, single newlines will
                 # be converted to HTML break tags.  This is the
                 # default behavior for traditional RedCloth.
                 #
                 attr_accessor :hard_breaks
                 # Accessor for toggling lite mode.
                 #
                 # In lite mode, block-level rules are ignored.  This means
                 # that tables, paragraphs, lists, and such aren't available.
                 # Only the inline markup for bold, italics, entities and so on.
                 #
                 #   r = RedCloth.new( "And then? She *fell*!", [:lite_mode] )
                 #   r.to_html
                 #   #=> "And then? She <strong>fell</strong>!"
                 #
                 attr_accessor :lite_mode
                 #
                 # Accessor for toggling span caps.
                 #
                 # Textile places `span' tags around capitalized
                 # words by default, but this wreaks havoc on Wikis.
                 # If +:no_span_caps+ is set, this will be
                 # suppressed.
                 #
                 attr_accessor :no_span_caps
                 #
                 # Establishes the markup predence.  Available rules include:
                 #
                 # == Textile Rules
                 #
                 # The following textile rules can be set individually.  Or add the complete
                 # set of rules with the single :textile rule, which supplies the rule set in
                 # the following precedence:
                 #
                 # refs_textile::          Textile references (i.e. [hobix]http://hobix.com/)
                 # block_textile_table::   Textile table block structures
                 # block_textile_lists::   Textile list structures
                 # block_textile_prefix::  Textile blocks with prefixes (i.e. bq., h2., etc.)
                 # inline_textile_image::  Textile inline images
                 # inline_textile_link::   Textile inline links
                 # inline_textile_span::   Textile inline spans
                 # glyphs_textile:: Textile entities (such as em-dashes and smart quotes)
                 #
                 # == Markdown
                 #
                 # refs_markdown::         Markdown references (for example: [hobix]: http://hobix.com/)
                 # block_markdown_setext:: Markdown setext headers
                 # block_markdown_atx::    Markdown atx headers
                 # block_markdown_rule::   Markdown horizontal rules
                 # block_markdown_bq::     Markdown blockquotes
                 # block_markdown_lists::  Markdown lists
                 # inline_markdown_link::  Markdown links
                 attr_accessor :rules
                 # Returns a new RedCloth object, based on _string_ and
                 # enforcing all the included _restrictions_.
                 #
                 #   r = RedCloth.new( "h1. A <b>bold</b> man", [:filter_html] )
                 #   r.to_html
                 #     #=>"<h1>A &lt;b&gt;bold&lt;/b&gt; man</h1>"
                 #
                 def initialize( string, restrictions = [] )
                     restrictions.each { |r| method( "#{ r }=" ).call( true ) }
                     super( string )
                 end
                 #
                 # Generates HTML from the Textile contents.
                 #
                 #   r = RedCloth.new( "And then? She *fell*!" )
                 #   r.to_html( true )
                 #     #=>"And then? She <strong>fell</strong>!"
                 #
                 def to_html( *rules )
                     rules = DEFAULT_RULES if rules.empty?
                     # make our working copy
                     text = self.dup
                     @urlrefs = {}
                     @shelf = []
                     textile_rules = [:refs_textile, :block_textile_table, :block_textile_lists,
                                      :block_textile_prefix, :inline_textile_image, :inline_textile_link,
                                      :inline_textile_code, :inline_textile_span]
                     markdown_rules = [:refs_markdown, :block_markdown_setext, :block_markdown_atx, :block_markdown_rule,
                                       :block_markdown_bq, :block_markdown_lists,
                                       :inline_markdown_reflink, :inline_markdown_link]
                     @rules = rules.collect do |rule|
                         case rule
                         when :markdown
                             markdown_rules
                         when :textile
                             textile_rules
                         else
                             rule
                         end
                     end.flatten
                     # standard clean up
                     incoming_entities text
                     clean_white_space text
                     # start processor
                     @pre_list = []
                     rip_offtags text
                     no_textile text
+                    escape_html_tags text
                     hard_break text
                     unless @lite_mode
                         refs text
                         blocks text
                     end
                     inline text
                     smooth_offtags text
                     retrieve text
                     text.gsub!( /<\/?notextile>/, '' )
                     text.gsub!( /x%x%/, '&#38;' )
                     clean_html text if filter_html
                     text.strip!
                     text
                 end
                 #######
                 private
                 #######
                 #
                 # Mapping of 8-bit ASCII codes to HTML numerical entity equivalents.
                 # (from PyTextile)
                 #
                 TEXTILE_TAGS =
                     [[128, 8364], [129, 0], [130, 8218], [131, 402], [132, 8222], [133, 8230],
                      [134, 8224], [135, 8225], [136, 710], [137, 8240], [138, 352], [139, 8249],
                      [140, 338], [141, 0], [142, 0], [143, 0], [144, 0], [145, 8216], [146, 8217],
                      [147, 8220], [148, 8221], [149, 8226], [150, 8211], [151, 8212], [152, 732],
                      [153, 8482], [154, 353], [155, 8250], [156, 339], [157, 0], [158, 0], [159, 376]].
                     collect! do |a, b|
                         [a.chr, ( b.zero? and "" or "&#{ b };" )]
                     end
                 #
                 # Regular expressions to convert to HTML.
                 #
                 A_HLGN = /(?:(?:<>|<|>|\=|[()]+)+)/
                 A_VLGN = /[\-^~]/
                 C_CLAS = '(?:\([^)]+\))'
                 C_LNGE = '(?:\[[^\]]+\])'
                 C_STYL = '(?:\{[^}]+\})'
                 S_CSPN = '(?:\\\\\d+)'
                 S_RSPN = '(?:/\d+)'
                 A = "(?:#{A_HLGN}?#{A_VLGN}?|#{A_VLGN}?#{A_HLGN}?)"
                 S = "(?:#{S_CSPN}?#{S_RSPN}|#{S_RSPN}?#{S_CSPN}?)"
                 C = "(?:#{C_CLAS}?#{C_STYL}?#{C_LNGE}?|#{C_STYL}?#{C_LNGE}?#{C_CLAS}?|#{C_LNGE}?#{C_STYL}?#{C_CLAS}?)"
                 # PUNCT = Regexp::quote( '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~' )
                 PUNCT = Regexp::quote( '!"#$%&\'*+,-./:;=?@\\^_`|~' )
                 PUNCT_NOQ = Regexp::quote( '!"#$&\',./:;=?@\\`|' )
                 PUNCT_Q = Regexp::quote( '*-_+^~%' )
                 HYPERLINK = '(\S+?)([^\w\s/;=\?]*?)(?=\s|<|$)'
                 # Text markup tags, don't conflict with block tags
                 SIMPLE_HTML_TAGS = [
                     'tt', 'b', 'i', 'big', 'small', 'em', 'strong', 'dfn', 'code',
                     'samp', 'kbd', 'var', 'cite', 'abbr', 'acronym', 'a', 'img', 'br',
                     'br', 'map', 'q', 'sub', 'sup', 'span', 'bdo'
                 ]
                 QTAGS = [
                     ['**', 'b', :limit],
                     ['*', 'strong', :limit],
                     ['??', 'cite', :limit],
                     ['-', 'del', :limit],
                     ['__', 'i', :limit],
                     ['_', 'em', :limit],
                     ['%', 'span', :limit],
                     ['+', 'ins', :limit],
                     ['^', 'sup', :limit],
                     ['~', 'sub', :limit]
                 ]
                 QTAGS.collect! do |rc, ht, rtype|
                     rcq = Regexp::quote rc
                     re =
                         case rtype
                         when :limit
-                            /(\W)
+                            /(^|[>\s])
                             (#{rcq})
                             (#{C})
                             (?::(\S+?))?
-                            (\S.*?\S|\S)
+                            ([^\s\-].*?[^\s\-]|\w)
                             #{rcq}
-                            (?=\W)/x
+                            (?=[[:punct:]]|\s|$)/x
                         else
                             /(#{rcq})
                             (#{C})
                             (?::(\S+))?
-                            (\S.*?\S|\S)
+                            ([^\s\-].*?[^\s\-]|\w)
                             #{rcq}/xm
                         end
                     [rc, ht, re, rtype]
                 end
                 # Elements to handle
                 GLYPHS = [
                 #   [ /([^\s\[{(>])?\'([dmst]\b|ll\b|ve\b|\s|:|$)/, '\1&#8217;\2' ], # single closing
                 #   [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)\'/, '\1&#8217;' ], # single closing
                 #   [ /\'(?=[#{PUNCT_Q}]*(s\b|[\s#{PUNCT_NOQ}]))/, '&#8217;' ], # single closing
                 #   [ /\'/, '&#8216;' ], # single opening
                     [ /</, '&lt;' ], # less-than
                     [ />/, '&gt;' ], # greater-than
                 #   [ /([^\s\[{(])?"(\s|:|$)/, '\1&#8221;\2' ], # double closing
                 #   [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)"/, '\1&#8221;' ], # double closing
                 #   [ /"(?=[#{PUNCT_Q}]*[\s#{PUNCT_NOQ}])/, '&#8221;' ], # double closing
                 #   [ /"/, '&#8220;' ], # double opening
                     [ /\b( )?\.{3}/, '\1&#8230;' ], # ellipsis
                     [ /\b([A-Z][A-Z0-9]{2,})\b(?:[(]([^)]*)[)])/, '<acronym title="\2">\1</acronym>' ], # 3+ uppercase acronym
                     [ /(^|[^"][>\s])([A-Z][A-Z0-9 ]+[A-Z0-9])([^<A-Za-z0-9]|$)/, '\1<span class="caps">\2</span>\3', :no_span_caps ], # 3+ uppercase caps
                     [ /(\.\s)?\s?--\s?/, '\1&#8212;' ], # em dash
                     [ /\s->\s/, ' &rarr; ' ], # right arrow
                     [ /\s-\s/, ' &#8211; ' ], # en dash
                     [ /(\d+) ?x ?(\d+)/, '\1&#215;\2' ], # dimension sign
                     [ /\b ?[(\[]TM[\])]/i, '&#8482;' ], # trademark
                     [ /\b ?[(\[]R[\])]/i, '&#174;' ], # registered
                     [ /\b ?[(\[]C[\])]/i, '&#169;' ] # copyright
                 ]
                 H_ALGN_VALS = {
                     '<' => 'left',
                     '=' => 'center',
                     '>' => 'right',
                     '<>' => 'justify'
                 }
                 V_ALGN_VALS = {
                     '^' => 'top',
                     '-' => 'middle',
                     '~' => 'bottom'
                 }
                 #
                 # Flexible HTML escaping
                 #
                 def htmlesc( str, mode )
                     str.gsub!( '&', '&amp;' )
                     str.gsub!( '"', '&quot;' ) if mode != :NoQuotes
                     str.gsub!( "'", '&#039;' ) if mode == :Quotes
                     str.gsub!( '<', '&lt;')
                     str.gsub!( '>', '&gt;')
                 end
                 # Search and replace for Textile glyphs (quotes, dashes, other symbols)
                 def pgl( text )
                     GLYPHS.each do |re, resub, tog|
                         next if tog and method( tog ).call
                         text.gsub! re, resub
                     end
                 end
                 # Parses Textile attribute lists and builds an HTML attribute string
                 def pba( text_in, element = "" )
                     return '' unless text_in
                     style = []
                     text = text_in.dup
                     if element == 'td'
                         colspan = $1 if text =~ /\\(\d+)/
                         rowspan = $1 if text =~ /\/(\d+)/
                         style << "vertical-align:#{ v_align( $& ) };" if text =~ A_VLGN
                     end
                     style << "#{ $1 };" if not filter_styles and
                         text.sub!( /\{([^}]*)\}/, '' )
                     lang = $1 if
                         text.sub!( /\[([^)]+?)\]/, '' )
                     cls = $1 if
                         text.sub!( /\(([^()]+?)\)/, '' )
                     style << "padding-left:#{ $1.length }em;" if
                         text.sub!( /([(]+)/, '' )
                     style << "padding-right:#{ $1.length }em;" if text.sub!( /([)]+)/, '' )
                     style << "text-align:#{ h_align( $& ) };" if text =~ A_HLGN
                     cls, id = $1, $2 if cls =~ /^(.*?)#(.*)$/
                     atts = ''
                     atts << " style=\"#{ style.join }\"" unless style.empty?
                     atts << " class=\"#{ cls }\"" unless cls.to_s.empty?
                     atts << " lang=\"#{ lang }\"" if lang
                     atts << " id=\"#{ id }\"" if id
                     atts << " colspan=\"#{ colspan }\"" if colspan
                     atts << " rowspan=\"#{ rowspan }\"" if rowspan
                     atts
                 end
                 TABLE_RE = /^(?:table(_?#{S}#{A}#{C})\. ?\n)?^(#{A}#{C}\.? ?\|.*?\|)(\n\n|\Z)/m
                 # Parses a Textile table block, building HTML from the result.
                 def block_textile_table( text )
                     text.gsub!( TABLE_RE ) do |matches|
                         tatts, fullrow = $~[1..2]
                         tatts = pba( tatts, 'table' )
                         tatts = shelve( tatts ) if tatts
                         rows = []
                         fullrow.
                         split( /\|$/m ).
                         delete_if { |x| x.empty? }.
                         each do |row|
                             ratts, row = pba( $1, 'tr' ), $2 if row =~ /^(#{A}#{C}\. )(.*)/m
                             cells = []
                             row.split( '|' ).each do |cell|
                                 ctyp = 'd'
                                 ctyp = 'h' if cell =~ /^_/
                                 catts = ''
                                 catts, cell = pba( $1, 'td' ), $2 if cell =~ /^(_?#{S}#{A}#{C}\. ?)(.*)/
                                 unless cell.strip.empty?
                                     catts = shelve( catts ) if catts
                                     cells << "\t\t\t<t#{ ctyp }#{ catts }>#{ cell }</t#{ ctyp }>"
                                 end
                             end
                             ratts = shelve( ratts ) if ratts
                             rows << "\t\t<tr#{ ratts }>\n#{ cells.join( "\n" ) }\n\t\t</tr>"
                         end
                         "\t<table#{ tatts }>\n#{ rows.join( "\n" ) }\n\t</table>\n\n"
                     end
                 end
                 LISTS_RE = /^([#*]+?#{C} .*?)$(?![^#*])/m
                 LISTS_CONTENT_RE = /^([#*]+)(#{A}#{C}) (.*)$/m
                 # Parses Textile lists and generates HTML
                 def block_textile_lists( text )
                     text.gsub!( LISTS_RE ) do |match|
                         lines = match.split( /\n/ )
                         last_line = -1
                         depth = []
                         lines.each_with_index do |line, line_id|
                             if line =~ LISTS_CONTENT_RE
                                 tl,atts,content = $~[1..3]
                                 if depth.last
                                     if depth.last.length > tl.length
                                         (depth.length - 1).downto(0) do |i|
                                             break if depth[i].length == tl.length
                                             lines[line_id - 1] << "</li>\n\t</#{ lT( depth[i] ) }l>\n\t"
                                             depth.pop
                                         end
                                     end
                                     if depth.last and depth.last.length == tl.length
                                         lines[line_id - 1] << '</li>'
                                     end
                                 end
                                 unless depth.last == tl
                                     depth << tl
                                     atts = pba( atts )
                                     atts = shelve( atts ) if atts
                                     lines[line_id] = "\t<#{ lT(tl) }l#{ atts }>\n\t<li>#{ content }"
                                 else
                                     lines[line_id] = "\t\t<li>#{ content }"
                                 end
                                 last_line = line_id
                             else
                                 last_line = line_id
                             end
                             if line_id - last_line > 1 or line_id == lines.length - 1
                                 depth.delete_if do |v|
                                     lines[last_line] << "</li>\n\t</#{ lT( v ) }l>"
                                 end
                             end
                         end
                         lines.join( "\n" )
                     end
                 end
                 CODE_RE = /(\W)
                     @
                     (?:\|(\w+?)\|)?
                     (.+?)
                     @
                     (?=\W)/x
                 def inline_textile_code( text )
                     text.gsub!( CODE_RE ) do |m|
                         before,lang,code,after = $~[1..4]
                         lang = " lang=\"#{ lang }\"" if lang
                         rip_offtags( "#{ before }<code#{ lang }>#{ code }</code>#{ after }" )
                     end
                 end
                 def lT( text )
                     text =~ /\#$/ ? 'o' : 'u'
                 end
                 def hard_break( text )
                     text.gsub!( /(.)\n(?!\Z| *([#*=]+(\s|$)|[{|]))/, "\\1<br />" ) if hard_breaks
                 end
                 BLOCKS_GROUP_RE = /\n{2,}(?! )/m
                 def blocks( text, deep_code = false )
                     text.replace( text.split( BLOCKS_GROUP_RE ).collect do |blk|
                         plain = blk !~ /\A[#*> ]/
                         # skip blocks that are complex HTML
                         if blk =~ /^<\/?(\w+).*>/ and not SIMPLE_HTML_TAGS.include? $1
                             blk
                         else
                             # search for indentation levels
                             blk.strip!
                             if blk.empty?
                                 blk
                             else
                                 code_blk = nil
                                 blk.gsub!( /((?:\n(?:\n^ +[^\n]*)+)+)/m ) do |iblk|
                                     flush_left iblk
                                     blocks iblk, plain
                                     iblk.gsub( /^(\S)/, "\t\\1" )
                                     if plain
                                         code_blk = iblk; ""
                                     else
                                         iblk
                                     end
                                 end
                                 block_applied = 0
                                 @rules.each do |rule_name|
                                     block_applied += 1 if ( rule_name.to_s.match /^block_/ and method( rule_name ).call( blk ) )
                                 end
                                 if block_applied.zero?
                                     if deep_code
                                         blk = "\t<pre><code>#{ blk }</code></pre>"
                                     else
                                         blk = "\t<p>#{ blk }</p>"
                                     end
                                 end
                                 # hard_break blk
                                 blk + "\n#{ code_blk }"
                             end
                         end
                     end.join( "\n\n" ) )
                 end
                 def textile_bq( tag, atts, cite, content )
                     cite, cite_title = check_refs( cite )
                     cite = " cite=\"#{ cite }\"" if cite
                     atts = shelve( atts ) if atts
                     "\t<blockquote#{ cite }>\n\t\t<p#{ atts }>#{ content }</p>\n\t</blockquote>"
                 end
                 def textile_p( tag, atts, cite, content )
                     atts = shelve( atts ) if atts
                     "\t<#{ tag }#{ atts }>#{ content }</#{ tag }>"
                 end
                 alias textile_h1 textile_p
                 alias textile_h2 textile_p
                 alias textile_h3 textile_p
                 alias textile_h4 textile_p
                 alias textile_h5 textile_p
                 alias textile_h6 textile_p
                 def textile_fn_( tag, num, atts, cite, content )
                     atts << " id=\"fn#{ num }\""
                     content = "<sup>#{ num }</sup> #{ content }"
                     atts = shelve( atts ) if atts
                     "\t<p#{ atts }>#{ content }</p>"
                 end
                 BLOCK_RE = /^(([a-z]+)(\d*))(#{A}#{C})\.(?::(\S+))? (.*)$/m
                 def block_textile_prefix( text )
                     if text =~ BLOCK_RE
                         tag,tagpre,num,atts,cite,content = $~[1..6]
                         atts = pba( atts )
                         # pass to prefix handler
                         if respond_to? "textile_#{ tag }", true
                             text.gsub!( $&, method( "textile_#{ tag }" ).call( tag, atts, cite, content ) )
                         elsif respond_to? "textile_#{ tagpre }_", true
                             text.gsub!( $&, method( "textile_#{ tagpre }_" ).call( tagpre, num, atts, cite, content ) )
                         end
                     end
                 end
                 SETEXT_RE = /\A(.+?)\n([=-])[=-]* *$/m
                 def block_markdown_setext( text )
                     if text =~ SETEXT_RE
                         tag = if $2 == "="; "h1"; else; "h2"; end
                         blk, cont = "<#{ tag }>#{ $1 }</#{ tag }>", $'
                         blocks cont
                         text.replace( blk + cont )
                     end
                 end
                 ATX_RE = /\A(\#{1,6})  # $1 = string of #'s
                           [ ]*
                           (.+?)       # $2 = Header text
                           [ ]*
                           \#*         # optional closing #'s (not counted)
                           $/x
                 def block_markdown_atx( text )
                     if text =~ ATX_RE
                         tag = "h#{ $1.length }"
                         blk, cont = "<#{ tag }>#{ $2 }</#{ tag }>\n\n", $'
                         blocks cont
                         text.replace( blk + cont )
                     end
                 end
                 MARKDOWN_BQ_RE = /\A(^ *> ?.+$(.+\n)*\n*)+/m
                 def block_markdown_bq( text )
                     text.gsub!( MARKDOWN_BQ_RE ) do |blk|
                         blk.gsub!( /^ *> ?/, '' )
                         flush_left blk
                         blocks blk
                         blk.gsub!( /^(\S)/, "\t\\1" )
                         "<blockquote>\n#{ blk }\n</blockquote>\n\n"
                     end
                 end
                 MARKDOWN_RULE_RE = /^(#{
                     ['*', '-', '_'].collect { |ch| '( ?' + Regexp::quote( ch ) + ' ?){3,}' }.join( '|' )
                 })$/
                 def block_markdown_rule( text )
                     text.gsub!( MARKDOWN_RULE_RE ) do |blk|
                         "<hr />"
                     end
                 end
                 # XXX TODO XXX
                 def block_markdown_lists( text )
                 end
                 def inline_textile_span( text )
                     QTAGS.each do |qtag_rc, ht, qtag_re, rtype|
                         text.gsub!( qtag_re ) do |m|
                             case rtype
                             when :limit
                                 sta,qtag,atts,cite,content = $~[1..5]
                             else
                                 qtag,atts,cite,content = $~[1..4]
                                 sta = ''
                             end
                             atts = pba( atts )
                             atts << " cite=\"#{ cite }\"" if cite
                             atts = shelve( atts ) if atts
                             "#{ sta }<#{ ht }#{ atts }>#{ content }</#{ ht }>"
                         end
                     end
                 end
                 LINK_RE = /
                         ([\s\[{(]|[#{PUNCT}])?     # $pre
                         "                          # start
                         (#{C})                     # $atts
                         ([^"]+?)                   # $text
                         \s?
                         (?:\(([^)]+?)\)(?="))?     # $title
                         ":
                         (\S+?)                     # $url
                         (\/)?                      # $slash
                         ([^\w\/;]*?)               # $post
                         (?=<|\s|$)
                     /x
                 def inline_textile_link( text )
                     text.gsub!( LINK_RE ) do |m|
                         pre,atts,text,title,url,slash,post = $~[1..7]
                         url, url_title = check_refs( url )
                         title ||= url_title
                         atts = pba( atts )
                         atts = " href=\"#{ url }#{ slash }\"#{ atts }"
                         atts << " title=\"#{ title }\"" if title
                         atts = shelve( atts ) if atts
                         external = (url =~ /^http:\/\//) ? ' class="external"' : ''
                         "#{ pre }<a#{ atts }#{ external }>#{ text }</a>#{ post }"
                     end
                 end
                 MARKDOWN_REFLINK_RE = /
                         \[([^\[\]]+)\]      # $text
                         [ ]?                # opt. space
                         (?:\n[ ]*)?         # one optional newline followed by spaces
                         \[(.*?)\]           # $id
                     /x
                 def inline_markdown_reflink( text )
                     text.gsub!( MARKDOWN_REFLINK_RE ) do |m|
                         text, id = $~[1..2]
                         if id.empty?
                             url, title = check_refs( text )
                         else
                             url, title = check_refs( id )
                         end
                         atts = " href=\"#{ url }\""
                         atts << " title=\"#{ title }\"" if title
                         atts = shelve( atts )
                         "<a#{ atts }>#{ text }</a>"
                     end
                 end
                 MARKDOWN_LINK_RE = /
                         \[([^\[\]]+)\]      # $text
                         \(                  # open paren
                         [ \t]*              # opt space
                         <?(.+?)>?           # $href
                         [ \t]*              # opt space
                         (?:                 # whole title
                         (['"])              # $quote
                         (.*?)               # $title
                         \3                  # matching quote
                         )?                  # title is optional
                         \)
                     /x
                 def inline_markdown_link( text )
                     text.gsub!( MARKDOWN_LINK_RE ) do |m|
                         text, url, quote, title = $~[1..4]
                         atts = " href=\"#{ url }\""
                         atts << " title=\"#{ title }\"" if title
                         atts = shelve( atts )
                         "<a#{ atts }>#{ text }</a>"
                     end
                 end
                 TEXTILE_REFS_RE =  /(^ *)\[([^\[\n]+?)\](#{HYPERLINK})(?=\s|$)/
                 MARKDOWN_REFS_RE = /(^ *)\[([^\n]+?)\]:\s+<?(#{HYPERLINK})>?(?:\s+"((?:[^"]|\\")+)")?(?=\s|$)/m
                 def refs( text )
                     @rules.each do |rule_name|
                         method( rule_name ).call( text ) if rule_name.to_s.match /^refs_/
                     end
                 end
                 def refs_textile( text )
                     text.gsub!( TEXTILE_REFS_RE ) do |m|
                         flag, url = $~[2..3]
                         @urlrefs[flag.downcase] = [url, nil]
                         nil
                     end
                 end
                 def refs_markdown( text )
                     text.gsub!( MARKDOWN_REFS_RE ) do |m|
                         flag, url = $~[2..3]
                         title = $~[6]
                         @urlrefs[flag.downcase] = [url, title]
                         nil
                     end
                 end
                 def check_refs( text )
                     ret = @urlrefs[text.downcase] if text
                     ret || [text, nil]
                 end
                 IMAGE_RE = /
                         (<p>|.|^)            # start of line?
                         \!                   # opening
                         (\<|\=|\>)?          # optional alignment atts
                         (#{C})               # optional style,class atts
                         (?:\. )?             # optional dot-space
                         ([^\s(!]+?)          # presume this is the src
                         \s?                  # optional space
                         (?:\(((?:[^\(\)]|\([^\)]+\))+?)\))?   # optional title
                         \!                   # closing
                         (?::#{ HYPERLINK })? # optional href
                     /x
                 def inline_textile_image( text )
                     text.gsub!( IMAGE_RE )  do |m|
                         stln,algn,atts,url,title,href,href_a1,href_a2 = $~[1..8]
                         atts = pba( atts )
                         atts = " src=\"#{ url }\"#{ atts }"
                         atts << " title=\"#{ title }\"" if title
                         atts << " alt=\"#{ title }\""
                         # size = @getimagesize($url);
                         # if($size) $atts.= " $size[3]";
                         href, alt_title = check_refs( href ) if href
                         url, url_title = check_refs( url )
                         out = ''
                         out << "<a#{ shelve( " href=\"#{ href }\"" ) }>" if href
                         out << "<img#{ shelve( atts ) } />"
                         out << "</a>#{ href_a1 }#{ href_a2 }" if href
                         if algn
                             algn = h_align( algn )
                             if stln == "<p>"
                                 out = "<p style=\"float:#{ algn }\">#{ out }"
                             else
                                 out = "#{ stln }<div style=\"float:#{ algn }\">#{ out }</div>"
                             end
                         else
                             out = stln + out
                         end
                         out
                     end
                 end
                 def shelve( val )
                     @shelf << val
                     " :redsh##{ @shelf.length }:"
                 end
                 def retrieve( text )
                     @shelf.each_with_index do |r, i|
                         text.gsub!( " :redsh##{ i + 1 }:", r )
                     end
                 end
                 def incoming_entities( text )
                     ## turn any incoming ampersands into a dummy character for now.
                     ## This uses a negative lookahead for alphanumerics followed by a semicolon,
                     ## implying an incoming html entity, to be skipped
                     text.gsub!( /&(?![#a-z0-9]+;)/i, "x%x%" )
                 end
                 def no_textile( text )
                     text.gsub!( /(^|\s)==([^=]+.*?)==(\s|$)?/,
                         '\1<notextile>\2</notextile>\3' )
                     text.gsub!( /^ *==([^=]+.*?)==/m,
                         '\1<notextile>\2</notextile>\3' )
                 end
                 def clean_white_space( text )
                     # normalize line breaks
                     text.gsub!( /\r\n/, "\n" )
                     text.gsub!( /\r/, "\n" )
                     text.gsub!( /\t/, '    ' )
                     text.gsub!( /^ +$/, '' )
                     text.gsub!( /\n{3,}/, "\n\n" )
                     text.gsub!( /"$/, "\" " )
                     # if entire document is indented, flush
                     # to the left side
                     flush_left text
                 end
                 def flush_left( text )
                     indt = 0
                     if text =~ /^ /
                         while text !~ /^ {#{indt}}\S/
                             indt += 1
                         end unless text.empty?
                         if indt.nonzero?
                             text.gsub!( /^ {#{indt}}/, '' )
                         end
                     end
                 end
                 def footnote_ref( text )
                     text.gsub!( /\b\[([0-9]+?)\](\s)?/,
                         '<sup><a href="#fn\1">\1</a></sup>\2' )
                 end
                 OFFTAGS = /(code|pre|kbd|notextile)/
                 OFFTAG_MATCH = /(?:(<\/#{ OFFTAGS }>)|(<#{ OFFTAGS }[^>]*>))(.*?)(?=<\/?#{ OFFTAGS }|\Z)/mi
                 OFFTAG_OPEN = /<#{ OFFTAGS }/
                 OFFTAG_CLOSE = /<\/?#{ OFFTAGS }/
                 HASTAG_MATCH = /(<\/?\w[^\n]*?>)/m
                 ALLTAG_MATCH = /(<\/?\w[^\n]*?>)|.*?(?=<\/?\w[^\n]*?>|$)/m
                 def glyphs_textile( text, level = 0 )
                     if text !~ HASTAG_MATCH
                         pgl text
                         footnote_ref text
                     else
                         codepre = 0
                         text.gsub!( ALLTAG_MATCH ) do |line|
                             ## matches are off if we're between <code>, <pre> etc.
                             if $1
                                 if line =~ OFFTAG_OPEN
                                     codepre += 1
                                 elsif line =~ OFFTAG_CLOSE
                                     codepre -= 1
                                     codepre = 0 if codepre < 0
                                 end
                             elsif codepre.zero?
                                 glyphs_textile( line, level + 1 )
                             else
                                 htmlesc( line, :NoQuotes )
                             end
                             # p [level, codepre, line]
                             line
                         end
                     end
                 end
                 def rip_offtags( text )
                     if text =~ /<.*>/
                         ## strip and encode <pre> content
                         codepre, used_offtags = 0, {}
                         text.gsub!( OFFTAG_MATCH ) do |line|
                             if $3
                                 offtag, aftertag = $4, $5
                                 codepre += 1
                                 used_offtags[offtag] = true
                                 if codepre - used_offtags.length > 0
                                     htmlesc( line, :NoQuotes ) unless used_offtags['notextile']
                                     @pre_list.last << line
                                     line = ""
                                 else
                                     htmlesc( aftertag, :NoQuotes ) if aftertag and not used_offtags['notextile']
                                     line = "<redpre##{ @pre_list.length }>"
                                     @pre_list << "#{ $3 }#{ aftertag }"
                                 end
                             elsif $1 and codepre > 0
                                 if codepre - used_offtags.length > 0
                                     htmlesc( line, :NoQuotes ) unless used_offtags['notextile']
                                     @pre_list.last << line
                                     line = ""
                                 end
                                 codepre -= 1 unless codepre.zero?
                                 used_offtags = {} if codepre.zero?
                             end
                             line
                         end
                     end
                     text
                 end
                 def smooth_offtags( text )
                     unless @pre_list.empty?
                         ## replace <pre> content
                         text.gsub!( /<redpre#(\d+)>/ ) { @pre_list[$1.to_i] }
                     end
                 end
                 def inline( text )
                     [/^inline_/, /^glyphs_/].each do |meth_re|
                         @rules.each do |rule_name|
                             method( rule_name ).call( text ) if rule_name.to_s.match( meth_re )
                         end
                     end
                 end
                 def h_align( text )
                     H_ALGN_VALS[text]
                 end
                 def v_align( text )
                     V_ALGN_VALS[text]
                 end
                 def textile_popup_help( name, windowW, windowH )
                     ' <a target="_blank" href="http://hobix.com/textile/#' + helpvar + '" onclick="window.open(this.href, \'popupwindow\', \'width=' + windowW + ',height=' + windowH + ',scrollbars,resizable\'); return false;">' + name + '</a><br />'
                 end
                 # HTML cleansing stuff
                 BASIC_TAGS = {
                     'a' => ['href', 'title'],
                     'img' => ['src', 'alt', 'title'],
                     'br' => [],
                     'i' => nil,
                     'u' => nil,
                     'b' => nil,
                     'pre' => nil,
                     'kbd' => nil,
                     'code' => ['lang'],
                     'cite' => nil,
                     'strong' => nil,
                     'em' => nil,
                     'ins' => nil,
                     'sup' => nil,
                     'sub' => nil,
                     'del' => nil,
                     'table' => nil,
                     'tr' => nil,
                     'td' => ['colspan', 'rowspan'],
                     'th' => nil,
                     'ol' => nil,
                     'ul' => nil,
                     'li' => nil,
                     'p' => nil,
                     'h1' => nil,
                     'h2' => nil,
                     'h3' => nil,
                     'h4' => nil,
                     'h5' => nil,
                     'h6' => nil,
                     'blockquote' => ['cite']
                 }
                 def clean_html( text, tags = BASIC_TAGS )
                     text.gsub!( /<!\[CDATA\[/, '' )
                     text.gsub!( /<(\/*)(\w+)([^>]*)>/ ) do
                         raw = $~
                         tag = raw[2].downcase
                         if tags.has_key? tag
                             pcs = [tag]
                             tags[tag].each do |prop|
                                 ['"', "'", ''].each do |q|
                                     q2 = ( q != '' ? q : '\s' )
                                     if raw[3] =~ /#{prop}\s*=\s*#{q}([^#{q2}]+)#{q}/i
                                         attrv = $1
                                         next if prop == 'src' and attrv =~ %r{^(?!http)\w+:}
                                         pcs << "#{prop}=\"#{$1.gsub('"', '\\"')}\""
                                         break
                                     end
                                 end
                             end if tags[tag]
                             "<#{raw[1]}#{pcs.join " "}>"
                         else
                             " "
                         end
                     end
                 end
+                ALLOWED_TAGS = %w(redpre pre)
+                def escape_html_tags(text)
+                  text.gsub!(%r{<((\/?)(\w+))}) {|m| ALLOWED_TAGS.include?($3) ? "<#{$1}" : "&lt;#{$1}" }
+                end
             end