MediaWiki code snippets

Creating an updating articles

Update templates

This function takes two strings of wikitext. The first is some content containing transcluded templates (or vriables/parser-functions). The parameter contains new content for one or more of the templates. If no templates match, the content will act <php> function updateTemplates($content,$updates) {

# Get the offsets and lengths of template definitions in $content $cbraces = array(); $cdepths = array(); $this->examineBraces($content,$cbraces,$cdepths);

# Get the offsets and lengths of template definitions in $updates $ubraces = array(); $udepths = array(); $this->examineBraces($updates,$ubraces,$udepths);

# Loop through the top-level braces in $updates foreach ($udepths[1] as $ui) {

# Get the update text $uoffset = $ubraces[$ui][SIMPLEFORMS_BRACES_OFFSET]; $ulength = $ubraces[$ui][SIMPLEFORMS_BRACES_LENGTH]; $update = substr($updates,$uoffset,$ulength);

# Get braces in content with the same name as this update $matches = array(); $uname = $ubraces[$ui][SIMPLEFORMS_BRACES_NAME]; foreach ($cbraces as $ci => $cb) if ($cb[SIMPLEFORMS_BRACES_NAME] == $uname) $matches[] = $ci;

# todo: while (count($matches) > 1), remove if par($par++) not equal (break if can't reduce to less than 1)

# If matches has been reduced to a single item, update the template in the content if (count($matches) == 1) { $coffset = $cbraces[$matches[0]][SIMPLEFORMS_BRACES_OFFSET]; $clength = $cbraces[$matches[0]][SIMPLEFORMS_BRACES_LENGTH]; $content = substr_replace($content,$update,$coffset,$clength); } } return $content; } </php>