function MarkdownExtra_Parser::stripFootnotes in Markdown 5

Same name and namespace in other branches

1. 6 markdown.php \MarkdownExtra_Parser::stripFootnotes()

File

./markdown.php, line 2607

Class

MarkdownExtra_Parser

Code

function stripFootnotes($text) {

  #

  # Strips link definitions from text, stores the URLs and titles in

  # hash references.

  #
  $less_than_tab = $this->tab_width - 1;

  # Link defs are in the form: [^id]: url "optional title"
  $text = preg_replace_callback('{
			^[ ]{0,' . $less_than_tab . '}\\[\\^(.+?)\\][ ]?:	# note_id = $1
			  [ ]*
			  \\n?					# maybe *one* newline
			(						# text = $2 (no blank lines allowed)
				(?:					
					.+				# actual text
				|
					\\n				# newlines but
					(?!\\[\\^.+?\\]:\\s)# negative lookahead for footnote marker.
					(?!\\n+[ ]{0,3}\\S)# ensure line is not blank and followed
									# by non-indented content
				)*
			)		
			}xm', array(
    &$this,
    '_stripFootnotes_callback',
  ), $text);
  return $text;
}