function Markdown($text)
{
global $g_urls, $g_titles, $g_html_blocks;
$g_urls = array();
$g_titles = array();
$g_html_blocks = array();
$text = str_replace(array("\r\n", "\r"), "\n", $text);
$text .= "\n\n";
$text = _Detab($text);
$text = preg_replace('/^[ \\t]+$/m', '', $text);
$text = _HashHTMLBlocks($text);
$text = _StripLinkDefinitions($text);
$text = _EscapeSpecialChars($text);
$text = _RunBlockGamut($text);
$text = _UnescapeSpecialChars($text);
return $text . "\n";
}
function _RunSpanGamut($text)
{
#
# These are all the transformations that occur *within* block-level
# tags like paragraphs, headers, and list items.
#
global $md_empty_element_suffix;
$text = _DoCodeSpans($text);
$text = _EscapeSpecialChars($text);
# Process anchor and image tags. Images must come first,
# because ![foo][f] looks like an anchor.
$text = _DoImages($text);
$text = _DoAnchors($text);
# Make links out of things like `<http://example.com/>`
# Must come after _DoAnchors(), because you can use < and >
# delimiters in inline links like [this](<url>).
$text = _DoAutoLinks($text);
# Fix unencoded ampersands and <'s:
$text = _EncodeAmpsAndAngles($text);
$text = _DoItalicsAndBold($text);
# Do hard breaks:
$text = preg_replace('/ {2,}\\n/', "<br{$md_empty_element_suffix}\n", $text);
return $text;
}
function Markdown($text)
{
#
# Main function. The order in which other subs are called here is
# essential. Link and image substitutions need to happen before
# _EscapeSpecialChars(), so that any *'s or _'s in the <a>
# and <img> tags get encoded.
#
# Clear the global hashes. If we don't clear these, you get conflicts
# from other articles when generating a page which contains more than
# one article (e.g. an index page that shows the N most recent
# articles):
global $md_urls, $md_titles, $md_html_blocks;
$md_urls = array();
$md_titles = array();
$md_html_blocks = array();
# Standardize line endings:
# DOS to Unix and Mac to Unix
$text = str_replace(array("\r\n", "\r"), "\n", $text);
# Make sure $text ends with a couple of newlines:
$text .= "\n\n";
# Convert all tabs to spaces.
$text = _Detab($text);
# Strip any lines consisting only of spaces and tabs.
# This makes subsequent regexen easier to write, because we can
# match consecutive blank lines with /\n+/ instead of something
# contorted like /[ \t]*\n+/ .
$text = preg_replace('/^[ \\t]+$/m', '', $text);
# Turn block-level HTML blocks into hash entries
$text = _HashHTMLBlocks($text);
# Strip link definitions, store in hashes.
$text = _StripLinkDefinitions($text);
# _EscapeSpecialChars() must be called very early, to get
# backslash escapes processed.
$text = _EscapeSpecialChars($text);
$text = _RunBlockGamut($text);
$text = _UnescapeSpecialChars($text);
return $text . "\n";
}
