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ssm.php
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ssm.php
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<?php
/*
Plugin Name: Simple Script Markup Processor
*/
add_filter("the_content","ssm_func");
function ssm_func($text){
$renderer = RendererFactory::getRenderer(is_feed());
$outputter = new ScriptOutputter($renderer);
return $outputter->output($text);
}
class ScriptOutputter {
private $PATTERN = '@(\<ss[fm]\>(.*?)\</ss[fm]\>)@is';
private $scriptRenderer;
function __construct($scriptRenderer) {
$this->scriptRenderer = $scriptRenderer;
}
function output($text) {
if (preg_match_all($this->PATTERN, $text, $matches)) {
for ($i = 0; $i < count($matches[0]); $i++) {
$innerText=strip_tags($matches[2][$i], '<span>');
$html = $this->scriptRenderer->open();
$lines=split("\n", $innerText);
foreach ($lines as $line) {
//Now for each line, find its deciding properties. We do this all at once
//since we have to check their values so many times, and some of the tests are
//time-consuming
$allCaps=$this->isAllCaps($line);
$startsWithSpace=substr($line, 0,1)==' ';
$endsWithColon=substr($line, -1,1)==':';
$startsWithSpaceParen=substr($line, 0,2)==' (';
$endsWithParen=substr($line, -1,1)==')';
$startsWithInt=substr($line, 0,4)=='INT.';
$startsWithExt=substr($line, 0,4)=='EXT.';
$empty=(trim($line)=='');
if($allCaps && !$startsWithSpace && $endsWithColon) {
if(strstr($line, "FADE IN")) {
$html .= $this->scriptRenderer->fade($line);
} else {
$html .= $this->scriptRenderer->transition($line);
}
} elseif($allCaps && ($startsWithInt || $startsWithExt)) {
$html .= $this->scriptRenderer->scene($line);
} elseif($startsWithSpace && $allCaps && $endsWithColon) {
$html .= $this->scriptRenderer->character(substr($line,1,-1));
} elseif($startsWithSpaceParen && $endsWithParen) {
$html .= $this->scriptRenderer->paren(substr($line,1));
} elseif($startsWithSpace) {
$html .= $this->scriptRenderer->dialogue(substr($line,1));
} elseif($empty) {
//nothing
} else {
$html .= $this->scriptRenderer->action($line);
}
}
$html .= $this->scriptRenderer->close();
$text = str_replace($matches[0][$i], $html, $text);
}
}
return $text;
}
//This method should be renamed. It really represents 'contains no lower case' but even that's not quite right.
private function isAllCaps($text) {
if (preg_match("/^[\d\sA-Z:\-.'\(\)#;,0-9&\/’]+$/", $text)) {
return true;
}
return false;
}
}
interface ScriptRenderer {
public function open();
public function fade($line);
public function transition($line);
public function scene($line);
public function character($line);
public function paren($line);
public function dialogue($line);
public function action($line);
public function close();
}
class NormalRenderer implements ScriptRenderer {
public function open() {
return "<div class='ssfscript'>\n";
}
public function fade($line) {
return "<p class='transition fade'>{$line}</p>" . "\n";
}
public function transition($line) {
return "<p class='transition'>{$line}</p>" . "\n";
}
public function scene($line) {
return "<p class='scene'>{$line}</p>" . "\n";
}
public function character($line) {
return "<p class='character'>{$line}</p>" . "\n";
}
public function paren($line) {
return "<p class='paren'>{$line}</p>" . "\n";
}
public function dialogue($line) {
return "<p class='dialogue'>{$line}</p>" . "\n";
}
public function action($line) {
return "<p class='action'>{$line}</p>" . "\n";
}
public function close() {
return "</div>";
}
}
class PlainTextRenderer implements ScriptRenderer {
private $WIDTH=72;
private $CHARACTER_MARGIN=25;
private $DIALOGUE_MARGIN=15;
private $PAREN_MARGIN=17;
public function open() {
return "<pre>\n";
}
public function fade($line) {
return "{$this->wrap($line)}\n";
}
public function transition($line) {
$indent = $this->WIDTH - strlen($line);
return str_repeat(" ", $indent) . $line . "\n";
}
public function scene($line) {
return "\n{$this->wrap($line)}\n";
}
public function character($line) {
$wrapped = $this->wrap($line, 0, $this->WIDTH-($this->CHARACTER_MARGIN*2));
$wrapped_split = explode("\n", $wrapped);
$str = "\n";
foreach ($wrapped_split as $wrapline) {
$indent = ($this->WIDTH - strlen($wrapline)) / 2;
$str .= str_repeat(" ", $indent) . $wrapline . "\n";
}
return $str;
}
public function paren($line) {
return str_repeat(" ", $this->PAREN_MARGIN) . "{$this->wrap($line, $this->PAREN_MARGIN)}\n";
}
public function dialogue($line) {
return str_repeat(" ", $this->DIALOGUE_MARGIN) . "{$this->wrap($line, $this->DIALOGUE_MARGIN)}\n";
}
public function action($line) {
return "\n{$this->wrap($line)}\n";
}
public function close() {
return "</pre>";
}
private function wrap($line, $indent=0, $width=null) {
if($width===null)
$width = $this->WIDTH;
$line = html_entity_decode($line);
$line = htmlspecialchars_decode($line);
$line = str_replace("’","'",$line);
$line = str_replace("–","-",$line);
$line = str_replace("”","\"",$line);
$line = str_replace("“","\"",$line);
$line = str_replace("…","...",$line);
$wrap = wordwrap($line, $width-$indent*2, "\n" . str_repeat(" ", $indent), true);
$wrap = htmlspecialchars($wrap);
return "{$wrap}";
}
}
class RendererFactory {
public static function getRenderer($feed) {
if($feed) {
return new PlainTextRenderer();
} else {
return new NormalRenderer();
}
}
}
?>